Automobile electronic water pump rotor limiting structure

Abstract

The utility model discloses an automobile electronic water pump rotor limit structure, which relates to the technical field of water pump manufacture, and comprises a rotor component arranged between a volute and a shell component, a gasket is arranged between the rotor component and the shell component, a boss limit structure is arranged on one side of the volute close to the rotor component, and the boss limit structure is arranged on the other side of the volute close to the shell component. And the boss limiting structure is attached to the rotor assembly. According to the arrangement, the limiting structure which is simple in structure and stable in limiting of the rotor assembly can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump manufacturing, in particular to a rotor limiting structure of an automobile electronic water pump. Background Art

[0002] A rotor limiter is an essential feature for automotive electronic water pumps. During operation, the rotor assembly experiences axial movement. If unrestricted, this can lead to excessive axial movement, causing erratic coolant flow and increased pump vibration. Current commercially available limiters include laser-welding a metal retaining ring on the upper rotor half or hot-riveting a plastic retaining ring onto the volute.

[0003] However, both of the above two structures have the following problems during the assembly process: the welding is not firm, which causes the shaft retaining ring to fall off and the rotor assembly limiting structure to fail; and when problems arise and rework is required, the shaft retaining ring cannot be removed and the material can only be scrapped; in addition, the two structures have the problem that the equipment is too large to be placed on the flow line during the assembly process, and the semi-finished products need to be circulated, which can easily lead to assembly interruptions; the existing structure assembly process is complex, the efficiency is low, and the cost is high.

[0004] Therefore, how to provide a limiting structure with a simple structure and stable limiting is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The utility model aims to provide a rotor limiting structure for an automobile electronic water pump, which can provide a limiting structure with simple structure and stable limiting.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rotor limiting structure for an automotive electronic water pump includes a rotor assembly installed between a volute and an outer shell assembly, a gasket installed between the rotor assembly and the outer shell assembly, and further includes: a boss limiting structure is provided on a side of the volute close to the rotor assembly, and the boss limiting structure is in contact with the rotor assembly.

[0008] Preferably, six boss limiting structures are provided on a side of the volute close to the rotor assembly.

[0009] Preferably, the six boss limiting structures are distributed in a circular uniform array.

[0010] Preferably, the boss limiting structure has a circular cross-section perpendicular to the axial direction of the rotor assembly.

[0011] Preferably, the boss limiting structure is provided with an inclination angle at an end portion close to the rotor assembly for cooperating with and limiting the rotor assembly.

[0012] Preferably, the volute and the boss limiting structure are an integrated structure.

[0013] Compared with the above-mentioned background technology, the present invention provides an automotive electronic water pump rotor limiting structure, including a rotor assembly installed between a volute and an outer shell assembly, a gasket installed between the rotor assembly and the outer shell assembly, a boss limiting structure is provided on the side of the volute close to the rotor assembly, and the boss limiting structure fits the rotor assembly.

[0014] Specifically, the rotor assembly is installed between the volute and the outer shell assembly, and a gasket is also installed between the rotor assembly and the outer shell. The rotor assembly will move along its axial direction during use. In order to prevent it from moving too much, a boss limiting structure is provided on the side of the volute close to the rotor assembly. The boss limiting structure can fit the rotor assembly in the installed state, and the axial limitation of the rotor assembly can effectively prevent the rotor assembly from moving too much. Such a setting has a simple structure and a simple assembly process, which can improve the assembly efficiency of the electronic water pump, and the boss limiting structure has stable limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0016] Figure 1 A schematic cross-sectional view of the structure provided by an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A structural diagram from another angle;

[0018] Figure 3 for Figure 1 A partial enlarged view of .

[0019] in:

[0020] 100-volute, 200-housing assembly, 300-rotor assembly, 400-gasket, 500-boss limiting structure. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left" and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations of the present invention.

[0024] See also Figures 1 to 3 This embodiment provides a rotor limiting structure for an automotive electronic water pump, including a rotor assembly 300 installed between a volute 100 and a housing assembly 200, a gasket 400 installed between the rotor assembly 300 and the housing assembly 200, and further including: a boss limiting structure 500 is provided on a side of the volute 100 close to the rotor assembly 300, and the boss limiting structure 500 is in contact with the rotor assembly 300.

[0025] Specifically, the rotor assembly 300 is installed between the volute 100 and the housing assembly 200. Figure 1 As shown, a gasket 400 is installed between the rotor assembly 300 and the casing. The gasket 400 will limit the downward movement of the rotor assembly 300. The rotor assembly 300 will move along its axial direction during use. If it is not restricted, the rotor assembly 300 will move too much in the axial direction, resulting in the flow of the coolant jumping, increased vibration of the water pump and other problems. Therefore, a boss limiting structure 500 is provided on the side of the volute 100 close to the rotor assembly 300. The boss limiting structure 500 can fit the rotor assembly 300 in the installed state, and an axial obstruction for the rotor assembly 300 can effectively prevent the rotor assembly 300 from moving too much upward. The gasket 400 under the rotor assembly 300 can also cooperate with the boss limiting structure 500 to limit the rotor assembly 300. It should be noted that this structure can be applied to the structures of all small-power water pumps and has strong versatility.

[0026] With such a configuration, the boss limiting structure 500 can stably limit the rotor assembly 300 and effectively reduce the noise of the water pump. In addition, compared with similar products on the market, the embodiment of the present application reduces one component, simplifies the assembly process, improves production efficiency, and reduces labor costs and material costs.

[0027] Preferably, six boss limiting structures 500 are provided on a side of the volute 100 close to the rotor assembly 300 .

[0028] Specifically, if Figure 2 As shown, in this embodiment, in the installed state, a total of six boss limiting structures 500 are provided on the inner side of the volute 100, that is, on the side close to the rotor assembly 300. The provision of multiple boss limiting structures 500 can make the limiting of the rotor assembly 300 more stable and achieve better limiting effect.

[0029] Of course, the number of boss limiting structures 500 on the volute 100 can be adjusted according to actual conditions, and is not specifically limited herein, as long as the above-mentioned purpose can be achieved.

[0030] Preferably, the six boss limiting structures 500 are distributed in a circular uniform array.

[0031] As will be appreciated, the rotor assembly 300 is generally cylindrical in shape. Therefore, to accommodate the shape of the rotor assembly 300 and enable the boss limiting mechanism to limit the rotor assembly 300 at all positions, the six boss limiting structures 500 are evenly distributed in a circular array. This arrangement can enhance the stability of the boss limiting structures 500 in limiting the rotor assembly 300. Of course, the diameters of the circles formed by the six boss limiting structures 500 can be set based on the actual dimensions of the rotor assembly 300, as long as they can ensure stable positioning of the rotor assembly 300.

[0032] Preferably, the cross section of the boss limiting structure 500 perpendicular to the axial direction of the rotor assembly 300 is circular.

[0033] In this embodiment, the boss limiting structures 500 are all columnar structures. This is because the columnar structure is easy to process and manufacture. Of course, the shape of the boss limiting structure 500 can also be adjusted according to actual conditions as long as it can play a limiting role.

[0034] Preferably, the end of the boss limiting structure 500 close to the rotor assembly 300 is provided with an inclination angle for cooperating with and fixing the rotor assembly 300 .

[0035] Specifically, if Figure 3As shown, the end of the boss limiting structure 500 close to the rotor assembly 300 is an inclined plane. The specific inclination angle and inclination direction need to be adjusted according to the actual installed rotor assembly 300, so that the end face of the boss limiting structure 500 with a certain inclination angle just fits the upper end face of the rotor assembly 300. This arrangement makes it easier for the boss limiting structure 500 to limit the rotor assembly 300.

[0036] Preferably, the volute 100 and the boss limiting structure 500 are an integrated structure.

[0037] In this embodiment, the volute 100 and the boss limiting structure 500 are an integrated structure, that is, the volute 100 is formed as one piece by injection molding, without adding any additional steps, and is easy to produce. In addition, the volute 100 and the boss limiting structure 500 are an integrated structure, which can increase the overall strength and extend its service life.

[0038] In summary, the present invention provides a rotor limiting structure for an automotive electronic water pump, comprising a rotor assembly 300 mounted between a volute 100 and a housing assembly 200, a gasket 400 being mounted between the rotor assembly 300 and the housing assembly 200, and six cylindrical boss limiting structures 500 disposed on a side of the volute 100 proximate to the rotor assembly 300. The six boss limiting structures 500 are evenly distributed in a circular array, and the ends of the boss limiting structures 500 are inclined surfaces with a certain inclination angle, which are in close contact with the rotor assembly 300, so that the boss limiting structures 500 can limit the rotor assembly 300. In addition, the volute 100 and the boss limiting structures 500 are integrally formed by injection molding. This arrangement can stably limit the rotor assembly 300, and the boss limiting structures 500 have a simple overall structure and are easy to produce. In addition, compared with similar products on the market, this structure reduces one component, simplifies the assembly process, improves production efficiency, and reduces labor and material costs.

[0039] 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.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0041] The above is a detailed introduction to the embodiments provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that, for those skilled in the art, without departing from the principles of the present invention, various improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A rotor limiting structure for an automotive electronic water pump, comprising a rotor assembly (300) installed between a volute (100) and a housing assembly (200), a gasket (400) installed between the rotor assembly (300) and the housing assembly (200), characterized in that: A boss limiting structure (500) is provided on one side of the volute (100) close to the rotor assembly (300), and the boss limiting structure (500) fits the rotor assembly (300).

2. The automotive electronic water pump rotor limiting structure according to claim 1, characterized in that: Six boss limiting structures (500) are arranged on a side of the volute (100) close to the rotor assembly (300).

3. The automotive electronic water pump rotor limiting structure according to claim 2, characterized in that: The six boss limiting structures (500) are distributed in a circular uniform array.

4. The automotive electronic water pump rotor limiting structure according to claim 3 is characterized in that: The cross section of the boss limiting structure (500) along the direction perpendicular to the axial direction of the rotor assembly (300) is circular.

5. The automotive electronic water pump rotor limiting structure according to claim 1, characterized in that: The boss limiting structure (500) is provided with an inclination angle at the end close to the rotor assembly (300) for cooperating with the rotor assembly (300) and limiting the rotor assembly (300).

6. The automotive electronic water pump rotor limiting structure according to claim 1, characterized in that: The volute (100) and the boss limiting structure (500) are an integrated structure.

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