Rotor driving structure of automotive electronic vacuum pump product

Abstract

The utility model relates to the technical field of automotive vacuum pumps, in particular to a rotor driving structure of an automotive electronic vacuum pump product, which comprises a mounting mechanism, the mounting mechanism comprises a driving block and a rotor, a motor shaft is arranged in a motor body, the driving block is slidably connected with the motor shaft and sleeved on the motor shaft, and a projection structure is arranged on the outer wall of the driving block. The center of the rotor is provided with a mounting groove, the mounting groove is matched with the motor shaft and the driving block, and through the arrangement of the structure, the problem that the rotor is asymmetric due to the force of a driving structure or the stress position in the process of driving the rotor is solved. The rotor can deflect up and down in periodic impact, so that the problem of eccentric wear of the rotor occurs.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle vacuum pump technical field especially relates to a vehicle electron vacuum pump product rotor drive structure. BACKGROUND

[0002] The electronic vacuum pump is mainly applied to new energy pure electric vehicle, hybrid vehicle and fuel vehicle with turbocharger engine. The electronic vacuum pump provides vacuum source for the automobile brake system using vacuum assistance. Because the new energy electric vehicle lacks engine, the brake system using vacuum assistance lacks vacuum source, at this time, an air extraction device must be added to meet the needs of the brake system for vacuum. The emergence of the electronic vacuum pump fills the above vacancy. The vacuum required by the brake system of the hybrid vehicle or the vehicle with turbocharger comes from the intake manifold of the engine. However, due to the existence of the turbocharger, the intake manifold of the engine lacks vacuum, which leads to hard braking and may cause brake failure in some extreme working conditions, which has great safety hazards. At this time, an electronic vacuum pump as an auxiliary vacuum pump can solve the problem of insufficient vacuum degree of the vehicle brake system.

[0003] The working principle of the electronic vacuum pump is that the rotor rotates under the drive of the drive structure, and the blade is thrown out of the rotor blade groove under the action of centrifugal force to form a volume cavity with the working cavity. With the rotation of the rotor, the volume of the volume cavity changes. Thus, a process of air extraction and exhaust is realized. The drive structure and the drive motor shaft are in interference fit. When the drive motor rotates, the drive structure rotates synchronously. Thus, the rotation of the rotor is driven, and a process of air extraction and exhaust of the product is realized.

[0004] However, the current drive structure design is unreasonable. In the process of driving the rotor, the rotor will be biased up and down in the periodic impact due to the problem of asymmetric force or force position of the drive structure, which will cause the problem of rotor eccentric wear. INVENTION CONTENTS

[0005] The utility model aims at providing a vehicle electronic vacuum pump product rotor drive structure, which solves the problem of asymmetric force or force position of the drive structure in the process of driving the rotor. The rotor will be biased up and down in the periodic impact, which will cause the problem of rotor eccentric wear.

[0006] In order to achieve the above object, the utility model provides a kind of vehicle electronic vacuum pump product rotor drive structure, including motor body and mounting mechanism, the mounting mechanism includes drive block and rotor, motor body is internally provided with motor shaft, the drive block is slidably connected with the motor shaft, and is sleeved on the motor shaft, the outer wall of the drive block is provided with protruding structure, the center of the rotor is provided with installation slot, the installation slot is adapted with the motor shaft and the drive block.

[0007] Wherein, the rotor is cylindrically arranged, and the surface of the rotor is uniformly provided with a plurality of openings.

[0008] Wherein, the surface of the drive structure is provided with mounting hole.

[0009] Wherein, a plurality of openings are annularly arranged outside the installation slot.

[0010] The utility model discloses a kind of vehicle electronic vacuum pump product rotor drive structure, the motor body is internally provided with motor shaft, the drive block is slidably connected with the motor shaft, and is sleeved on the motor shaft, the outer wall of the drive block is provided with protruding structure, the center of the rotor is provided with installation slot, the installation slot is adapted with the motor shaft and the drive block, the drive block is installed on the motor shaft, and the installation mode is interference fit installation, the drive block is installed in the interior of the rotor, the drive block is inserted into the interior of the installation slot, the protruding structure can be triangular structure, the outer wall of the protruding structure is circularly arranged, the number of the protruding structure is generally upper interval, it can also be one or more, when the rotor rotates, the drive block force structure is symmetrical, so that the rotor can stably rotate, effectively solve the eccentric wear problem of the rotor. ACCURACY

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0012] Fig. 1 It is the sectional view of the utility model vehicle electronic vacuum pump product rotor drive structure.

[0013] Fig. 2 It is the structure schematic view of the rotor of the utility model.

[0014] Fig. 3 It is the structure schematic view of the drive block of the utility model.

[0015] Fig. 4 is a mounting structure schematic view of the driving block of the utility model.

[0016] 1-rotor, 101-mounting groove, 102-opening, 2-driving block, 201-protruding structure, 202-mounting hole, 3-motor shaft, 4-motor body. DETAILED DESCRIPTION

[0017] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0018] Please refer to Figs. 1 to 4 The utility model provides a kind of electronic vacuum pump product rotor drive structure for vehicle, including motor body 4 and mounting mechanism, the mounting mechanism includes driving block 2 and rotor 1, motor shaft 3 is provided in the motor body 4, the driving block 2 is slidably connected with the motor shaft 3, and is sleeved on the motor shaft 3, the outer wall of the driving block 2 is provided with protruding structure 201, the center of the rotor 1 is provided with mounting groove 101, the mounting groove 101 is adapted with the motor shaft 3 and the driving block 2.

[0019] In the embodiment, the driving block 2 is installed on the motor shaft 3, and the installation mode is interference fit installation. The driving block 2 is installed in the interior of the rotor 1, the driving block 2 extends into the interior of the mounting groove 101, the protruding structure 201 can be a triangular structure, the outer wall of the protruding structure 201 is arc-shaped, and the number of the protruding structure 201 is generally one, or one or more. When the rotor 1 rotates, the force structure of the driving block 2 is symmetrical, so that the rotor 1 can rotate stably, and the eccentric wear problem of the rotor 1 is effectively solved.

[0020] Further, the rotor 1 is cylindrically arranged, and the surface of the rotor 1 is uniformly provided with a plurality of openings 102.

[0021] In the embodiment, the rotor 1 is rotated by the driving block 2 to realize the air extraction process.

[0022] Further, the surface of the driving block 2 is provided with a mounting hole 202.

[0023] In the embodiment, the mounting hole 202 is circular, and the motor shaft 3 is adapted to the mounting hole 202.

[0024] Further, several of the openings 102 are annularly arranged on the outer side of the mounting groove 101.

[0025] In the present embodiment, the openings 102 are in contact with the working cavity of the motor body 4 to form a volume cavity, and the size of the volume cavity changes as the rotor 1 rotates, thereby realizing the process of air extraction and exhaust.

[0026] The above disclosed is only a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right range, the person skilled in the art can understand that the whole or part of the process of realizing the above embodiment, and the equivalent change made by the utility model right claim, still belongs to the range covered by the utility model.

Claims

1. A rotor driving structure of an electronic vacuum pump product for vehicles, comprising a motor body, characterized in that, Further comprising a mounting mechanism, the mounting mechanism comprises a driving block and a rotor, a motor shaft is arranged in the motor body, the driving block is in sliding connection with the motor shaft and is sleeved on the motor shaft, a protruding structure is arranged on the outer wall of the driving block, the center of the rotor is provided with a mounting groove, and the mounting groove is matched with the motor shaft and the driving block.

2. The rotor driving structure of the electronic vacuum pump product for vehicles according to claim 1, characterized in that, The rotor is arranged in a cylindrical shape, and a plurality of openings are uniformly arranged on the surface of the rotor.

3. The rotor driving structure of the electronic vacuum pump product for vehicles according to claim 2, characterized in that, A mounting hole is arranged on the surface of the driving structure, and the motor shaft is matched with the mounting hole.

4. The rotor driving structure of the electronic vacuum pump product for vehicles according to claim 2, characterized in that, A plurality of the openings are arranged in an annular shape outside the mounting groove.

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