Self-lubricating anti-rust electronic water pump rotor for vehicle

Abstract

The utility model discloses a self -lubricating antirust electronic water pump rotor for car, including rotor main part, upper cover and shaft sleeve, be provided with the impeller on the rotor main part, be provided with the mounting hole in the rotor main part, the upper cover is installed on the impeller, the flow channel is formed between the upper cover and the impeller, the self -lubricating antirust layer is set up in the inner and outer surface of the shaft sleeve, the shaft sleeve is installed in the mounting hole, the shaft sleeve of the utility model has the self -lubricating antirust layer, adopts graphite material to make, need not external lubrication, and the layered crystal structure of graphite can release microgranule when rubbing, forms the self -lubricating film, reduces the friction coefficient of shaft sleeve, and graphite is strong in stability, is difficult to be oxidized, prolongs the service life of the electronic water pump rotor for car.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronic water pump technology, and in particular to a self-lubricating and rust-preventing automotive electronic water pump rotor. Background Technology

[0002] Electric water pumps are an advanced technology used in automotive cooling systems. Compared to traditional mechanical water pumps, they utilize electric drive instead of the traditional engine-driven mechanical device. The electric water pump rotor is one of the core components of the pump; its function is to convert the rotational power output by the motor into the flow force of the liquid, thereby transporting water or other liquids from one point to another. Specifically, the electric water pump rotor drives the impeller by rotating. During the rotation of the impeller, the liquid is propelled and flows. When the rotor rotates at high speed, a certain pressure difference is created, which drives the liquid to flow along the pipes.

[0003] Currently, the rotor shafts of electronic water pumps are made of metal materials, which are easily oxidized in liquids and air. The oxide layer increases friction during the rotation of the electronic water pump rotor, reduces transmission efficiency, and may even cause jamming. Utility Model Content

[0004] The present invention aims to solve the problems existing in the prior art. Therefore, the purpose of the present invention is to propose a self-lubricating and rust-preventing automotive electronic water pump rotor.

[0005] To achieve the above objectives, this utility model proposes:

[0006] Self-lubricating, rust-preventing automotive electronic water pump rotor, including:

[0007] The rotor body has an impeller mounted on it and mounting holes are provided in it.

[0008] A top cover, the top cover being mounted on the impeller, and a flow channel being formed between the top cover and the impeller; and

[0009] A bushing, wherein the inner and outer surfaces of the bushing are provided with a self-lubricating and rust-proof layer, and the bushing is installed in a mounting hole.

[0010] Furthermore, the bushing is a graphite bushing.

[0011] Furthermore, a first limiting part is provided on the mounting hole, and a second limiting part is provided on the bushing, the second limiting part and the first limiting part cooperate to lock in place.

[0012] Furthermore, there are two second limiting parts, which are located at both ends of the bushing, and there are two first limiting parts, which correspond to the positions of the second limiting parts.

[0013] Furthermore, the impeller is composed of multiple blades, and the upper cover is provided with multiple slots, through which the upper cover is snapped onto the blades.

[0014] Furthermore, the number of blades is seven, and their shape is a spiral arc.

[0015] Furthermore, the number of slots is the same as that of the blades, which is seven.

[0016] Furthermore, at least one impeller is provided with a positioning element, and at least one positioning groove is opened on the upper cover, the positioning groove being used in conjunction with the positioning element.

[0017] The beneficial effects of this utility model are:

[0018] The bushing of this utility model has a self-lubricating and anti-rust layer. It is made of graphite material and does not require external lubrication. The layered crystal structure of graphite can release microparticles during friction to form a self-lubricating film, reducing the friction coefficient of the bushing. At the same time, graphite has strong stability and is difficult to be oxidized, which extends the service life of the rotor of this vehicle electronic water pump.

[0019] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a perspective view of the utility model;

[0021] Figure 2 This is a sectional view of the present invention;

[0022] Figure 3 This is an exploded view of this utility model.

[0023] Figure label:

[0024] 1. Rotor body; 101. Impeller; 102. Mounting hole; 103. First limiting part; 104. Blade; 105. Positioning component;

[0025] 2. Top cover, 201. Card slot, 202. Positioning slot;

[0026] 3. Flow channel;

[0027] 4. Bushing, 401. Second limiting part. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] like Figure 1-3 As shown, the self-lubricating and rust-preventing automotive electronic water pump rotor includes a rotor body 1, a top cover 2, and a bushing 4. Specifically, the rotor body 1 is provided with an impeller 101, which is composed of multiple blades 104, and the rotor body 1 has a mounting hole 102; the top cover 2 is installed on the impeller 101, and a flow channel 3 is formed between the top cover 2 and the impeller 101 for the flow of liquid; the inner and outer surfaces of the bushing 4 are provided with a self-lubricating and rust-preventing layer, and the bushing 4 is installed in the mounting hole 102.

[0031] In this embodiment, the bushing 4 is a graphite bushing 4, meaning the bushing 4 is made of graphite. The layered crystal structure of graphite can release microparticles during friction, forming a self-lubricating film, i.e., a self-lubricating and rust-preventing layer, which can reduce the coefficient of friction and is suitable for long-term operation and maintenance-free scenarios. At the same time, graphite has high stability and is difficult to oxidize, extending the service life of the automotive electronic water pump rotor.

[0032] In this embodiment, the rotor body 1 and the blade 104 are an integral structure. The integral molding reduces the number of connection points, avoids the stress concentration problem of traditional splicing structures, and significantly improves the impact resistance and deformation resistance.

[0033] In actual implementation, when injection molding the rotor body 1, the bushing 4 can be taken into account, that is, a structure for fixing the bushing 4 can be set at the corresponding position in the mold of the rotor body 1.

[0034] In this embodiment, a first limiting part 103 is provided on the mounting hole 102, and a second limiting part 401 is provided on the bushing 4. The second limiting part 401 and the first limiting part 103 are engaged and locked together. Specifically, the first limiting part 103 is a stepped protrusion structure integral with the rotor body 1, and the second limiting part 401 is a stepped recess structure provided on the bushing 4. There are two second limiting parts 401, which are located at both ends of the bushing 4. There are two first limiting parts 103, which are located corresponding to the positions of the second limiting parts 401. Under the combined action of the second limiting part 401 and the first limiting part 103, the bushing 4 can be guaranteed not to move axially relative to the rotor body 1, thereby preventing problems such as vibration and abnormal noise of the electric water pump, ensuring the normal operation of the electric water pump, and thus ensuring the long-term stable cooling function of the car.

[0035] In this embodiment, the upper cover 2 is provided with multiple slots 201, and the upper cover 2 is snapped onto the blade 104 through the slots 201. Specifically, there are seven blades 104, and their shape is a spiral arc. The number of slots 201 is the same as that of the blades 104, which is also seven.

[0036] Of course, the number of slots 201 can be different. If it is only for connecting the top cover 2, one slot 201 corresponding to the blade 104 can be set. The design of multiple slots 201 can improve the stability of the connection of the top cover 2.

[0037] In this embodiment, positioning elements 105 are provided on the two impellers 101, and two positioning grooves 202 are provided on the upper cover 2. The positioning grooves 202 and the positioning elements 105 work together to play a positioning role, which facilitates the installation of the upper cover 2.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating, rust-preventing automotive electronic water pump rotor, characterized in that, include: The rotor body has an impeller mounted on it and mounting holes are provided in it. A top cover, the top cover being mounted on the impeller, and a flow channel being formed between the top cover and the impeller; and A bushing, wherein the inner and outer surfaces of the bushing are provided with a self-lubricating and rust-proof layer, and the bushing is installed in a mounting hole.

2. The self-lubricating and rust-preventing automotive electronic water pump rotor according to claim 1, characterized in that, The bushing is a graphite bushing.

3. The self-lubricating and rust-preventing automotive electronic water pump rotor according to claim 2, characterized in that, The mounting hole is provided with a first limiting part, and the bushing is provided with a second limiting part, which cooperates with the first limiting part to lock in place.

4. The self-lubricating and rust-preventing automotive electronic water pump rotor according to claim 3, characterized in that, There are two second limiting parts, which are located at both ends of the bushing, and there are two first limiting parts, which correspond to the positions of the second limiting parts.

5. The self-lubricating rust-preventing automotive electronic water pump rotor according to any one of claims 1-4, characterized in that, The impeller is composed of multiple blades, and the upper cover is provided with multiple slots, which are used to engage the upper cover with the blades.

6. The self-lubricating rust-preventing automotive electronic water pump rotor according to claim 5, characterized in that, The number of blades is seven, and their shape is a spiral arc.

7. The self-lubricating rust-preventing automotive electronic water pump rotor according to claim 6, characterized in that, The number of slots is the same as that of the blades, which is seven.

8. The self-lubricating rust-preventing automotive electronic water pump rotor according to claim 5, characterized in that, At least one impeller is provided with a positioning element, and at least one positioning groove is opened on the upper cover, the positioning groove being used in conjunction with the positioning element.

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