Bidirectional impeller structure of automobile electronic water pump

Abstract

A bidirectional impeller structure of an automobile electronic water pump comprises an impeller assembly, the impeller assembly comprises an impeller upper cover and an impeller lower cover, and the impeller upper cover and the impeller lower cover are welded to form the impeller assembly. According to different use requirements, the upper cover punching part or the lower cover punching part is punched to form an upper cover water inlet or a lower cover water inlet used for water inflow, and when the impeller assembly needs to rotate clockwise, the upper cover punching part of the impeller upper cover is punched to form an upper cover water inlet; the impeller rotating assembly enables cooling liquid to flow in along the water inlet of the upper cover, and then the cooling liquid is discharged through rotation of an impeller. And when the impeller assembly needs to rotate anticlockwise, the lower cover punching part of the impeller lower cover is punched, so that the lower cover water inlet is opened, and the same function can be achieved. By means of the structure, the applicability of the impeller assembly is improved, additional mold opening for manufacturing impellers of different structures is not needed in the production process, and therefore the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive electric water pumps, and particularly relates to a bidirectional impeller structure of an automotive electric water pump. Background Art

[0002] Traditional impeller assemblies can only be used for single-direction rotation. The impellers with such a structure have low applicability. If there is a need for reverse rotation, the demand can only be met by opening another mold, which will increase production costs and production processes, thereby reducing production efficiency. Summary of the Invention

[0003] In view of this, the utility model provides a bidirectional impeller structure of an automotive electric water pump.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A bidirectional impeller structure of an automotive electric water pump, comprising an impeller assembly. The impeller assembly includes an impeller upper cover and an impeller lower cover. The impeller upper cover and the impeller lower cover are fixedly connected. A drainage cavity is formed between the impeller upper cover and the impeller lower cover. Upper cover punching parts and lower cover punching parts are respectively arranged on the impeller upper cover and the impeller lower cover. Punching the upper cover punching parts and the lower cover punching parts forms an upper cover water inlet and a lower cover water inlet for water inlet, and the upper cover water inlet and the lower cover water inlet are respectively communicated with the drainage cavity.

[0006] Preferably, a plurality of welding parts protrude from one side end face of the impeller upper cover close to the impeller lower cover. The welding parts are distributed in an arc-shaped radial pattern with the center of the impeller upper cover as the reference. A welding groove is concavely formed on the side of the welding part close to the impeller upper cover. A partition part protrudes from the impeller lower cover corresponding to the welding groove. The partition part extends into the welding groove and is welded and fixed to the impeller upper cover. A drainage groove is formed between adjacent partition parts. One end of the drainage groove far from the center of the impeller assembly has a liquid discharge port communicating the drainage cavity and the outside of the drainage cavity.

[0007] Preferably, the impeller upper cover has an upper cover body part and an upper shaft connection part. The upper shaft connection part protrudes in a cylindrical structure at the center position on the side of the upper cover body part far from the impeller lower cover. The upper cover water inlet is arranged on the top surface of the upper shaft connection part.

[0008] Preferably, a plurality of upper cover water inlets are arranged, and an upper interval part is arranged between adjacent upper cover water inlets.

[0009] Preferably, the impeller lower cover has a lower cover body part and a lower shaft connection part. The lower shaft connection part protrudes in a cylindrical structure at the center position on the side of the lower cover body part far from the upper cover body part. The lower cover water inlet is arranged at the position of the lower cover body part between adjacent partition parts.

[0010] Preferably, when the upper cover punching part punches to form the upper cover water inlet, the lower cover punching part is in a sealed state; when the lower cover punching part punches to form the lower cover water inlet, the upper cover punching part is in a sealed state.

[0011] Preferably, the arc directions of both the welding part and the partition part are clockwise.

[0012] The beneficial effects of the present utility model are as follows: the applicability of the impeller assembly is improved, and there is no need to additionally mold different structures of impellers during the production process, thereby reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Attached Figure 1 is a schematic diagram of the unpunched structure of the impeller assembly;

[0015] Attached Figure 2 is a schematic diagram of the structure of the impeller assembly with the upper cover water inlet punched open;

[0016] Attached Figure 3 is a schematic diagram of the structure of the impeller assembly with the lower cover water inlet punched open;

[0017] Attached Figure 4 is attached Figure 1 structural decomposition schematic diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0019] The following will further describe the present utility model with reference to the accompanying drawings of the specification.

[0020] The present utility model provides the following technical solutions:

[0021] As attached Figures 1-4As shown in the figure, the utility model discloses a two-way impeller structure of an automotive electronic water pump, which includes an impeller assembly 1. The impeller assembly 1 includes an upper impeller cover 2 and a lower impeller cover 3. The upper impeller cover 2 is fixedly connected to the lower impeller cover 3. A drainage cavity is formed between the upper impeller cover 2 and the lower impeller cover 3. Upper cover punching parts 5 and lower cover punching parts 6 are respectively arranged on the upper impeller cover 2 and the lower impeller cover 3. Punching the upper cover punching parts 5 and the lower cover punching parts 6 forms an upper cover water inlet 7 and a lower cover water inlet 8 for water inlet. The upper cover water inlet 7 and the lower cover water inlet 8 are respectively communicated with the drainage cavity. Specifically, in this design, the upper impeller cover 2 and the lower impeller cover 3 are welded to form the impeller assembly 1. According to different usage requirements, the upper cover punching parts 5 or the lower cover punching parts 6 are punched to form the upper cover water inlet 7 or the lower cover water inlet 8 for water inlet. When it is necessary to rotate the impeller assembly 1 clockwise, the upper cover punching part 5 of the upper impeller cover 2 is punched to form the upper cover water inlet 7. The impeller rotating assembly can flow the coolant along the upper cover water inlet 7 and then discharge the coolant through the rotation of the impeller assembly 1. When it is necessary to rotate the impeller assembly 1 counterclockwise, the lower cover punching part 6 of the lower impeller cover 3 is punched to open the lower cover water inlet 8, and the same function can be achieved. Such a structure improves the applicability of the impeller assembly 1. During the production process, there is no need to additionally mold different structures of impellers, thereby reducing the production cost and improving the production efficiency.

[0022] Furthermore, on one side end face of the upper impeller cover 2 close to the lower impeller cover 3, a plurality of welding parts 9 protrude. The welding parts 9 are distributed in an arc-shaped radial pattern with the center of the upper impeller cover 2 as the reference. On the side of the welding part 9 close to the upper impeller cover 2, a welding groove 10 is concavely formed. On the lower impeller cover 3, a partition part 11 protrudes corresponding to the welding groove 10. The partition part 11 extends into the welding groove and is welded and fixed to the upper impeller cover 2. A drainage groove 12 is formed between adjacent partition parts 11. One end of the drainage groove 12 far from the center of the impeller assembly 1 has a liquid discharge port 13 communicating the drainage cavity and the outside of the drainage cavity. The arc directions of both the welding part 9 and the partition part 11 are clockwise. Specifically, in this embodiment, the upper impeller cover 2 and the lower impeller cover 3 are fixed by ultrasonic welding. By means of ultrasonic welding, the welding part 9 and the partition part 11 generate high-frequency friction under the vibration of ultrasonic waves, causing plastic deformation of the metal between the welding groove 10 and the partition part 11, thereby realizing the firm connection between the upper impeller cover 2 and the lower impeller cover 3. This welding method not only improves the sealing performance of the impeller assembly 1 but also ensures the strength and durability of the impeller assembly 1. During the operation of the impeller assembly 1, the coolant enters the drainage cavity through the upper cover water inlet 7 or the lower cover water inlet 8. Subsequently, under the rotation of the impeller, the coolant is thrown into the drainage groove 12. The design of the drainage groove 12 not only increases the contact area between the coolant and the impeller assembly 1, improving the heat dissipation efficiency, but also enables the coolant to be more evenly distributed on the impeller assembly 1 through the guidance of the drainage groove 12, avoiding the phenomenon of local overheating. At the same time, one end of the drainage groove 12 far from the center of the impeller assembly 1 has a liquid discharge port 13 communicating the drainage cavity and the outside of the drainage cavity. This design enables the coolant to be smoothly discharged after flowing through the impeller assembly 1, preventing the accumulation of coolant inside the impeller assembly 1 and ensuring the continuous heat dissipation effect of the impeller assembly 1.

[0023] Furthermore, the upper impeller cover 2 has an upper cover body part 14 and an upper shaft connection part 15. The upper shaft connection part 15 protrudes in a cylindrical structure at the central position on the side of the upper cover body part 14 far from the lower cover body part 17. The upper cover water inlet 7 is arranged on the top surface of the upper shaft connection part 15. Specifically, in this embodiment, by designing the upper shaft connection part 15 into a cylindrical structure, it can ensure a tight connection with the motor or other driving components, reduce the friction loss during rotation, and improve the rotation efficiency of the impeller assembly 1. At the same time, arranging the upper cover water inlet 7 on the top surface of the upper shaft connection part 15 can ensure that when the coolant flows into the impeller assembly 1, it can directly enter the impeller interior through the upper shaft connection part 15, reducing the resistance of the water flow path and improving the cooling effect.

[0024] Further, a plurality of upper cover water inlets 7 are provided, and an upper spacing portion 16 is provided between adjacent upper cover water inlets 7. Specifically, in this embodiment, the number of upper cover water inlets 7 is determined according to the actual working environment and cooling requirements of the impeller assembly 1. By providing a plurality of upper cover water inlets 7, the flow rate of the coolant flowing into the impeller assembly 1 can be increased, improving the cooling effect. At the same time, the upper spacing portion 16 provided between adjacent upper cover water inlets 7 can ensure that the coolant is evenly distributed when flowing into the impeller assembly 1, avoiding uneven cooling caused by overly concentrated local water flow.

[0025] Further, the lower impeller cover 3 has a lower cover body portion 17 and a lower shaft connection portion 18. The lower shaft connection portion 18 protrudes in a cylindrical structure at the central position on the side of the lower cover body portion 17 away from the upper cover body portion 14, and the lower cover water inlet 8 is provided at a position on the lower cover body portion 17 between adjacent partition portions 11. Specifically, in this embodiment, the lower shaft connection portion 18 is also designed as a cylindrical structure to adapt to the connection requirements of the motor or other driving components, ensuring the stability and reliability of the impeller assembly 1 during operation. The lower cover water inlet 8 is provided at a position on the lower cover body portion 17 between adjacent partition portions 11, and such a layout can ensure that the coolant can directly flow into the drainage groove 12, reducing the bending of the water flow path and improving the flow efficiency of the coolant.

[0026] Further, when the upper cover punching portion 5 punches to form the upper cover water inlet 7, the lower cover punching portion 6 is in a sealed state; when the lower cover punching portion 6 punches to form the lower cover water inlet 8, the upper cover punching portion 5 is in a sealed state. Specifically, in this embodiment, this design of the upper cover punching portion 5 and the lower cover punching portion 6 is to ensure that only one water inlet is open in a specific rotation direction, thus avoiding the backflow and waste of the coolant. When the impeller assembly 1 rotates clockwise, the upper cover water inlet 7 formed by punching is open, while the lower cover punching portion 6 remains in a sealed state, ensuring that the coolant can only flow in from the upper cover water inlet 7 and is discharged through the rotation of the impeller. On the contrary, when the impeller assembly 1 needs to rotate counterclockwise, the lower cover punching portion 6 punches to form the lower cover water inlet 8, while the upper cover punching portion 5 remains sealed, ensuring the normal flow of the coolant and the heat dissipation effect.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bidirectional impeller structure of an automotive electronic water pump, comprising an impeller assembly, characterized in that: The impeller assembly includes an impeller upper cover and an impeller lower cover, the impeller upper cover is fixedly connected to the impeller lower cover, a drainage chamber is formed between the impeller upper cover and the impeller lower cover, an upper cover punching portion and a lower cover punching portion are respectively provided on the impeller upper cover and the impeller lower cover, the upper cover punching portion and the lower cover punching portion are punched to form an upper cover water inlet and a lower cover water inlet for water intake, and the upper cover water inlet and the lower cover water inlet are respectively connected to the drainage chamber.

2. The bidirectional impeller structure of an automotive electronic water pump according to claim 1, characterized in that: A plurality of welding parts are protruded on the end surface of one side of the impeller upper cover close to the impeller lower cover, and the welding parts are distributed radially in an arc shape with the center of the impeller upper cover as the reference. The side of the welding part close to the impeller upper cover is concave to form a welding groove, and a partition part is protruded on the impeller lower cover corresponding to the welding groove. The partition part extends into the welding groove and is welded and fixed to the impeller upper cover, and a drainage groove is formed between adjacent partition parts. The end of the drainage groove away from the center of the impeller assembly has a drainage port connecting the drainage cavity and the outside of the drainage cavity.

3. The bidirectional impeller structure of an automotive electronic water pump according to claim 1, characterized in that: The impeller upper cover comprises an upper cover body and an upper shaft connection part, wherein the upper shaft connection part is a cylindrical structure protruding from the center of the upper cover body away from the impeller lower cover, and the upper cover water inlet is arranged on the top surface of the upper shaft connection part.

4. The bidirectional impeller structure of an automotive electronic water pump according to claim 3, characterized in that: A plurality of upper cover water inlets are provided, and upper spacers are provided between adjacent upper cover water inlets.

5. The bidirectional impeller structure of an automotive electronic water pump according to claim 2, characterized in that: The impeller lower cover comprises a lower cover body and a lower shaft connecting part, wherein the lower shaft connecting part is a cylindrical structure protruding at the center position of the lower cover body away from the upper cover body, and the lower cover water inlet is arranged at a position where the lower cover body is located between adjacent partition parts.

6. The bidirectional impeller structure of an automotive electronic water pump according to claim 1, characterized in that: When the upper cover punching part punches a hole to form the upper cover water inlet, the lower cover punching part is in a sealed state; when the lower cover punching part punches a hole to form the lower cover water inlet, the upper cover punching part is in a sealed state.

7. The bidirectional impeller structure of an automotive electronic water pump according to claim 2, characterized in that: The arc directions of the welding portion and the partition portion are both clockwise.

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