Electronic water pump shell structure and electronic water pump applying same

Abstract

The utility model discloses an electronic water pump shell structure and an electronic water pump using the electronic water pump shell structure, and relates to the technical field of electronic water pumps and parts thereof, the electronic water pump shell structure comprises a pump shell component and a pump cover component, a rotor cavity is formed in the pump shell component, and an impeller cavity is formed in the inner side of the pump cover component; the pump shell component extends outwards in the radial direction of the pump shell component to form a first fixing edge. The pump cover component extends outwards in the radial direction of the pump cover component to form a second fixing edge. The first fixing edge of the pump shell component and the second fixing edge of the pump cover component are mutually fixed in the axial direction to form a sealing structure. The utility model mainly solves the problem of how to provide an assembly structure for a pump shell component and a pump cover component; according to the electronic water pump, the pump cover component and the pump shell component do not need to be assembled through screws and buckles, a sealing ring does not need to be installed, the assembling procedure of the electronic water pump is omitted, the overall cost of the electronic water pump is reduced, the sealing performance and stability of the electronic water pump are improved, and the service life of the electronic water pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic water pumps and their components, specifically to an electronic water pump housing structure and an electronic water pump using the same. Background Technology

[0002] Electric water pumps have high output efficiency and can achieve precise flow control. Therefore, they are widely used in automobiles, home appliances and industrial equipment. In particular, new energy vehicles usually have two or more electric water pumps. The electric water pump is the power source of the entire cooling system of new energy vehicles. The power battery, drive motor and other components of new energy vehicles all rely on the electric water pump to drive the coolant for circulation and cooling.

[0003] The Chinese invention patent publication text with publication number CN116163963A entitled "Electronic Water Pump, Assembly Method of Electronic Water Pump and New Energy Vehicle", and the Chinese utility model patent publication text with announcement number CN216812264U entitled "Water Pump with Rotor Sealing Structure" both disclose typical electronic water pump structures.

[0004] The aforementioned electronic water pumps are all equipped with a pump casing component and a pump cover component. The inner space of the pump casing component forms a rotor chamber, which is used to support and house the rotor assembly of the electronic water pump. The inner space of the pump cover component forms an impeller chamber, which is used to support and house the impeller of the electronic water pump.

[0005] However, the assembly and sealing structures between the pump casing and pump cover components of existing electronic water pumps are relatively complex (for example, fasteners such as screws are required), which makes the assembly process of electronic water pumps complicated and the material and assembly costs high. In addition, the above structure usually relies on sealing rings to achieve sealing, which poses a risk of liquid medium leakage due to aging or damage of the sealing rings.

[0006] In summary, providing a reasonable, reliable, and cost-effective assembly structure for the pump casing and pump cover components of an electronic water pump has become one of the urgent problems to be solved. Utility Model Content

[0007] The purpose of this utility model is to provide an electronic water pump housing structure and an electronic water pump using the same, which can provide an assembly structure with reasonable structure, reliable sealing performance and low cost for the pump housing components and pump cover components of the electronic water pump.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an electronic water pump housing structure, comprising at least a pump housing component and a pump cover component; a rotor chamber is formed within the pump housing component; an impeller chamber is formed on the inner side of the pump cover component, and an inlet and an outlet are respectively formed on the pump cover component, connecting the inner and outer sides of the impeller chamber; the pump housing component extends outward along its radial direction to form a first fixed edge; the pump cover component extends outward along its radial direction to form a second fixed edge; the first fixed edge of the pump housing component and the second fixed edge of the pump cover component are fixed to each other in the axial direction to form a sealing structure.

[0009] In the above technical solution, a mating groove is formed at the first fixed edge of the pump casing component; a mating rib is formed at the second fixed edge of the pump cover component; the mating rib of the pump cover component is inserted into the mating groove of the pump casing component, and the mating rib of the pump cover component is fixed in the mating groove of the pump casing component.

[0010] In the above technical solution, an ultrasonic line is provided at the end face of the mating rib of the pump cover component; the mating rib of the pump cover component is fixed in the mating groove of the pump casing component by ultrasonic welding.

[0011] In the above technical solution, a positioning rib is provided at the first fixed edge of the pump casing component; a positioning groove matching the positioning rib is provided at the second fixed edge of the pump cover component.

[0012] An electronic water pump includes the aforementioned electronic water pump housing structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The electronic water pump housing structure and the electronic water pump using the present utility model have a first fixing edge of the pump housing component and a second fixing edge of the pump cover component that are fixed to each other in the axial direction to form a sealing structure. This eliminates the need for screws and clips to assemble the pump cover component and the pump housing component, and also eliminates the need to install a sealing ring, thus saving the assembly process of the electronic water pump and reducing the overall cost of the electronic water pump. In addition, it avoids the problem of liquid medium leakage caused by the failure of the sealing ring, and improves the sealing performance, stability and service life of the electronic water pump. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] The attached figures are labeled as follows: 1. Pump casing component; 11. First fixed edge; 12. Mating groove; 13. Positioning rib; 2. Pump cover component; 21. Second fixed edge; 22. Mating rib; 221. Ultrasonic line; 23. Positioning groove; 24. Inlet; 25. Outlet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0019] This embodiment provides an electronic water pump housing structure that can be applied to electronic water pumps, serving as both a structural and functional support foundation for the pump.

[0020] Please see Figures 1-3 The electronic water pump housing structure of this embodiment includes at least a pump housing component 1 and a pump cover component 2.

[0021] The pump housing component 1 is a semi-shell component made of engineering plastic and is integrally injection molded, which is used to provide a structural support foundation for the electronic water pump housing structure of this embodiment. The pump cover component 2 is a cover-shaped component made of engineering plastic and is integrally injection molded.

[0022] A rotor chamber is formed within the pump casing component 1. The rotor chamber is a cavity structure integrally formed with the pump casing component 1.

[0023] An impeller chamber is formed on the inner side of the pump cover component 2. In addition, an inlet 24 and an outlet 25 are formed on the pump cover component 2, which connect the inner and outer sides of the impeller chamber. Specifically, the impeller chamber is a cavity on the inner side of the pump cover component 2. The inlet 24 and the outlet 25 are both short tubular structures integrally formed on the pump cover component 2.

[0024] The pump housing component 1 extends outward along its radial direction to form a first fixed edge 11. In fact, the first fixed edge 11 is integrally injection molded with the pump housing component 1 and protrudes outward along the radial direction from the pump housing component 1 to form a ring structure.

[0025] The pump cover component 2 extends outward along its radial direction to form a second fixed edge 21. In fact, the second fixed edge 21 is integrally injection molded with the pump cover component 2 and protrudes outward along the radial direction from the pump cover component 2 to form a ring structure.

[0026] The first fixing edge 11 of the pump casing component 1 and the second fixing edge 21 of the pump cover component 2 are fixed to each other in the axial direction to form a sealing structure.

[0027] Specifically, a mating groove 12 is formed at the first fixing edge 11 of the pump housing component 1. In fact, the mating groove 12 is integrally injection molded with the first fixing edge 11 and has an annular concave structure. A mating rib 22 is formed at the second fixing edge 21 of the pump cover component 2. In fact, the second fixing edge 21 is integrally injection molded with the pump housing component 1 and protrudes outward from the pump housing component 1 along the axial direction to form an annular structure. The mating rib 22 of the pump cover component 2 is inserted into the mating groove 12 of the pump housing component 1, and the mating rib 22 of the pump cover component 2 is fixed in the mating groove 12 of the pump housing component 1.

[0028] More specifically, an ultrasonic line 221 is provided at the end face of the mating rib 22 of the pump cover component 2; the mating rib 22 of the pump cover component 2 is fixed in the mating groove 12 of the pump housing component 1 by ultrasonic welding; in this way, the pump cover component 2 and the pump housing component 1 are fixed to each other, and a sealing structure is provided between the pump cover component 2 and the pump housing component 1.

[0029] Furthermore, a positioning rib 13 is provided at the first fixed edge 11 of the pump housing component 1. In fact, the positioning rib 13 is a set of protruding structural features integrally injection molded at the first fixed edge 11 (two positioning ribs 13 are provided in this embodiment); a positioning groove 23 matching the positioning rib 13 is provided at the second fixed edge 21 of the pump cover component 2. In fact, the positioning groove 23 is a set of groove-shaped structural features integrally injection molded at the second fixed edge 21 (two positioning grooves 23 are provided in this embodiment); through the cooperation of the positioning rib 13 and the positioning groove 23, the relative positioning of the pump cover component 2 and the pump housing component 1 and the assembly error prevention are realized.

[0030] This embodiment also provides an electronic water pump, which includes the above-described electronic water pump housing structure.

[0031] In this embodiment, the electronic water pump housing structure and the electronic water pump using it are described. The first fixing edge 11 of the pump housing component 1 and the second fixing edge 21 of the pump cover component 2 are fixed to each other in the axial direction to form a sealing structure. This eliminates the need for screws and clips to assemble the pump cover component 2 and the pump housing component 1, and also eliminates the need to install a sealing ring. This saves on the assembly process of the electronic water pump, thereby reducing the overall cost of the electronic water pump. In addition, it avoids the problem of liquid medium leakage caused by the failure of the sealing ring, and improves the sealing performance, stability and service life of the electronic water pump.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic water pump housing structure characterized by comprising: It includes at least a pump casing assembly and a pump cover assembly; A rotor chamber is formed within the pump casing component; An impeller chamber is formed on the inner side of the pump cover component, and an inlet and an outlet are respectively formed on the pump cover component to connect the inner and outer sides of the impeller chamber. The pump casing component extends outward along its radial direction to form a first fixed edge; The pump cover component extends outward in its radial direction to form a second fixed edge; The first fixing edge of the pump casing component and the second fixing edge of the pump cover component are fixed to each other in the axial direction to form a sealing structure.

2. The electronic water pump housing structure according to claim 1, characterized by A mating groove is formed at the first fixed edge of the pump casing component; A mating rib is formed at the second fixing edge of the pump cover component; The mating ribs of the pump cover component are inserted into the mating grooves of the pump housing component, and the mating ribs of the pump cover component are fixed in the mating grooves of the pump housing component.

3. The electronic water pump housing structure according to claim 2, characterized by An ultrasonic line is provided at the end face of the mating rib of the pump cover component; The mating ribs of the pump cover component are fixed in the mating grooves of the pump casing component by ultrasonic welding.

4. The electronic water pump housing structure according to claim 2 or 3, characterized by The pump casing component is provided with a positioning rib at the first fixed edge. The second fixed edge of the pump cover component is provided with a positioning groove that matches the positioning rib.

5. An electronic water pump characterized by comprising: Includes the electronic water pump housing structure as described in any one of claims 1-4.

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