Electric vehicle equipped with an electric air conditioning compressor on filter pads.

Abstract

A motor vehicle comprising an engine compartment delimited by at least one crossmember (4) and / or at least one side member, in which an electric air conditioning compressor (1) is installed. The electric air conditioning compressor (1) is provided with a mounting plate (1d) integral with the housing (1c) of said electric air conditioning compressor (1), the mounting plate (1d) being provided with at least one filter pad attached to an intermediate support (3), said intermediate support (3) being itself fixed to at least one crossmember (4) or to at least one side member of the engine compartment, the at least one filter pad being designed to filter the vibrations of the electric air conditioning compressor (1), the mounting plate (1d) being fixed to the intermediate support (3) solely by means of the at least one filter pad. Figure for the abbreviation: Fig 1

Description

Title of the invention: Electric vehicle equipped with an electric air conditioning compressor on filter pads. technical field

[0001] The invention has as its technical field the supports for vibrating elements, and more particularly the filter supports for such vibrating elements. Previous techniques

[0002] Air conditioning compressors are generally installed on the structure of the motor vehicle. As they are sources of structure-borne noise, filtering or decoupling is necessary to prevent noise from being transmitted into the vehicle's passenger compartment.

[0003] There is therefore a need for vibration filtering of an electric compressor for a motor vehicle, in order to limit the noise perceived in the passenger compartment. The addition of such filtering requires the use of an intermediate support which results in additional volume, weight, and cost.

[0004] From the prior art, we know of document FR3059733 disclosing compressor insulation, comprising a proprietary fastening system and involving a large number of add-on parts. This document proposes a large and expensive system.

[0005] There is therefore a need for vibration filtering of an electric compressor for motor vehicles, in order to limit the noises perceived in the passenger compartment, which has limited size and cost. Description of the invention

[0006] The invention relates to a motor vehicle comprising an engine compartment delimited by at least one crossmember and / or at least one side member, in which an electric air conditioning compressor is installed. The electric air conditioning compressor is provided with a mounting plate integral with the housing of said electric air conditioning compressor, the mounting plate being provided with at least one filter pad connected to an intermediate support, said intermediate support being itself fixed to at least one crossmember or to at least one side member of the engine compartment, the at least one filter pad being designed so as to filter the vibrations of the electric air conditioning compressor, the mounting plate being fixed to the intermediate support solely by means of the at least one filter pad.

[0007] The mounting plate can be provided with at least three filter pads on the intermediate support.

[0008] A filter pad may include a core made of elastically deformable material and a removable fixing system, the core made of elastically deformable material being designed to absorb vibrations.

[0009] The core made of elastically deformable material may exhibit high compressibility and elastic return. The core made of elastically deformable material is forcefully inserted into an opening in the mounting plate, so as to form a bond with the mounting plate through the forces exerted by the core made of elastically deformable material on the inside of the opening in the mounting plate.

[0010] The removable fastening system can be supported on one side by the intermediate support and on the other side by the core made of elastically deformable material.

[0011] The periphery of an opening in the mounting plate can be provided with at least one shoulder limiting the displacement of the core made of elastically deformable material.

[0012] The removable fastening system may consist of a bolt and a nut or a threaded rod and two nuts.

[0013] The housing of the electric compressor and the mounting plate can be made from a single piece.

[0014] The housing of the electric compressor and the mounting plate can be fixed by means of flanges or removable screw / thread type fixings. Brief description of the drawings

[0015] Other objects, features and advantages of the invention will become apparent from the following description, given solely by way of non-limiting example and made with reference to the accompanying drawings in which:

[0016] - Figure [Fig. 1] illustrates a bird's-eye view of an electric air compressor conditioned from a motor vehicle, and

[0017] - Figure [Fig.2] illustrates a cross-sectional view of an electric air compressor conditioned fixed to the structure of a motor vehicle. Detailed description

[0018] Figure [Fig.1] illustrates an electric air conditioning compressor 1 comprising a high voltage connector la for the power supply of the compressor, and two flanges 1b for air hoses, allowing the inlet and outlet of air from the compressor.

[0019] The electric compressor 1 includes a housing le equipped with a mounting plate Id having at least three filter pads 2. The electric compressor 1 is fixed to an intermediate support 3 by means of said filter pads 2, the intermediate support 3 being itself fixed to the structure 4 of the vehicle, in particular to a cross member or a longitudinal member of said structure 4 of the vehicle.

[0020] Figure [Fig.2] illustrates a cross-sectional view of the electric compressor 1 attached to the vehicle structure 4. A space 5 is provided between the mounting plate Id and the intermediate support 3 so that the only points of contact between the mounting plate Id and the intermediate support 3 are the filter pads 2.

[0021] In one embodiment, the mounting plate Id is made so as to be an integral part of the housing of the electric compressor 1.

[0022] The filter pads 2 comprise a core 2a made of elastically deformable material such as rubber or elastomer and a removable fastening system 2b, in particular of the bolt / nut type. Alternative removable fastening systems 2b, in particular of the threaded rod / nut type, will not depart from the scope of the invention. The core 2a made of elastically deformable material is designed to absorb vibrations and is disposed in an opening provided in the mounting plate Id.

[0023] The core 2a, made of elastically deformable material, forms a connection with the mounting plate Id through the forces it generates on the inside of the opening in the mounting plate Id. To achieve this, the chosen plastic material has high compressibility and elastic return. The core 2a, made of elastically deformable material, is larger than the opening in the mounting plate Id and is press-fitted. A shoulder may be provided at the edge of the opening in the mounting plate Id to increase the retention of the core 2a. In a particular embodiment, such a shoulder is provided on both sides of at least one opening in the mounting plate Id.

[0024] The bolt of the removable fixing system 2b is disposed in a bore provided in the core 2a made of elastically deformable material and bearing on the intermediate support 3. The nut is screwed to the bolt so as to bear on the face of the core 2a made of elastically deformable material furthest from the intermediate support 3.

[0025] The mounting plate Id and the electric compressor 1 are thus fixed to the vehicle structure via the mounting plate Id, the filter pads 2 and the intermediate support 3. However, the filter pads 2 allow the electric compressor 1 to be decoupled from the vehicle structure, and to reduce noise rising into the passenger compartment.

[0026] In addition to the structural elements presented above, Figure [Fig.2] illustrates the core 2a made of elastically deformable material, arranged in the opening provided in the fixing plate Id and the removable fixing system 2b to the intermediate support 3.

[0027] Integrating the filtration into the filter pads reduces the overall size of the electric compressor 1 installation, allowing it to be placed at closer to the powertrain 6 and / or to reduce the footprint in the engine compartment.

Claims

Demands

1. A motor vehicle comprising an engine compartment delimited by at least one cross member (4) and / or at least one side member, the motor vehicle being equipped with an electric air conditioning compressor (1), the motor vehicle being characterized in that the electric air conditioning compressor (1) is equipped with a mounting plate (Id) integral with the housing (the) of said electric air conditioning compressor (1), the mounting plate (Id) being equipped with at least one filter pad making the connection to an intermediate support (3), said intermediate support (3) being itself fixed to the at least one cross member (4) or to the at least one side member of the engine compartment, the at least one filter pad being designed so as to filter the vibrations of the electric air conditioning compressor (1), the mounting plate (Id) being fixed to the intermediate support (3) only by means of the at least one filter pad.

2. Motor vehicle according to claim 1, wherein the mounting plate (Id) is provided with at least three filter pads (2) on the intermediate support (3).

3. Motor vehicle according to claim 1 or 2, wherein a filter pad comprises a core (2a) of elastically deformable material and a removable fixing system (2b), the core (2a) of elastically deformable material being designed to absorb vibrations.

4. Motor vehicle according to claim 3, wherein the core (2a) of elastically deformable material has high compressibility and elastic return, the core (2a) of elastically deformable material is forcibly inserted into an opening provided in the mounting plate (Id), so as to form a bond with the mounting plate (Id) by means of the forces exerted by the core (2a) of elastically deformable material on the inside of the opening provided in the mounting plate (Id).

5. Motor vehicle according to claim 3 or 4, wherein the removable fastening system (2b) is supported on one side by the intermediate support (3) and on the other side by the core (2a) made of elastically deformable material.

6. Motor vehicle according to any one of claims 3 to 5, wherein the periphery of an opening in the mounting plate (Id) is provided with at least one shoulder limiting the displacement of the core (2a) made of elastically deformable material.

7. Motor vehicle according to any one of claims 3 to 6, wherein the removable fastening system (2b) consists of a bolt and a nut or a threaded rod and two nuts.

8. Motor vehicle according to any one of claims 1 to 7, wherein the housing (the) of the electric compressor (1) and the mounting plate (Id) are made of a single piece.

9. Motor vehicle according to any one of claims 1 to 7, wherein the housing (the) of the electric compressor (1) and the mounting plate (Id) are fixed by means of flanges or removable screw / thread type fixings.

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