Encapsulation device for a vibrating device, such as an air conditioning compressor, comprising an inner skin made of elastomeric material

Abstract

This disclosure relates to an encapsulation device (30) comprising shells (31, 32) intended to be assembled together to form an internal volume (35) suitable for receiving a vibrating device (20), one of the shells having an opening for passing a connector to connect the vibrating device to equipment located outside the internal volume, wherein: each shell has an inner face covered with an inner skin (33, 34) of elastomeric material, said inner skins forming, when the shells are assembled, an inner envelope, said inner envelope surrounding the vibrating device and delimiting the internal volume, at least a part of the inner envelope not being in contact with the vibrating device, at the level of the shell having the opening, the inner skin has an extension (340) encroaching on a peripheral area of ​​said opening,said extension being configured to bear against a perimeter of the connector. Figure accompanying the summary: Figure 5,

Description

Title of the invention: Encapsulation device for a vibrating device, such as an air conditioning compressor, comprising an inner skin made of elastomeric material technical field

[0001] The present invention belongs to the field of vibrating devices, and relates more particularly to a device for encapsulating a vibrating device, such as an air conditioning compressor for a motor vehicle. State of the art

[0002] In a motor vehicle, certain devices generate vibrations when in operation. This is the case, in particular, for the air conditioning compressor, or the power steering pump, etc. These vibrations can generate unwanted noises perceptible to the occupants of the motor vehicle.

[0003] When the motor vehicle is equipped with an internal combustion engine, the extraneous noises generated by these vibrations are generally masked by the noise of the internal combustion engine. However, when the motor vehicle is equipped with an electric motor, the noises generated by these vibrations are much more noticeable.

[0004] These unwanted noises, generated for example by an air conditioning compressor, can reach the passenger compartment of the motor vehicle in two different ways. On the one hand, the vibrations generated by the air conditioning compressor can reach the passenger compartment via solid transmission, these vibrations being transmitted to a chassis of the motor vehicle via the means of attaching said air conditioning compressor to this chassis. On the other hand, the vibrations generated by the air conditioning compressor can generate acoustic waves that can reach the passenger compartment via airborne transmission, by propagation through the air.

[0005] To overcome these drawbacks, it is known to filter vibrations transmitted through solids. Generally, the air conditioning compressor is attached to a mounting bracket, and the mounting bracket is attached to the chassis of the motor vehicle. Elastomeric joints are provided between the air conditioning compressor and the mounting bracket, thus filtering vibrations at the connection between the air conditioning compressor and the mounting bracket, thereby limiting the transmission of vibrations through solids.

[0006] To limit the transmission of vibrations through the air, it is known to encapsulate the air conditioning compressor inside a polyurethane foam.

[0007] The air conditioning compressor, encapsulated in polyurethane foam, can optionally be attached to the chassis of the motor vehicle by means of the the mounting support described previously, which helps to limit the transmission of vibrations both through solid and airborne channels.

[0008] However, due to the encapsulation in the polyurethane foam, in close contact with the air conditioning compressor, the temperature of the air conditioning compressor can increase sharply and the generated heat is not dissipated.

[0009] Furthermore, openings must necessarily be provided in the polyurethane foam for the passage of connectors, particularly those used to connect the air conditioning compressor to an electric vehicle battery. These necessary openings, however, correspond to areas through which vibrations can propagate through the air to the passenger compartment of the vehicle.

[0010] Moreover, the space provided in a motor vehicle to accommodate an air conditioning compressor is generally very limited, and there is therefore a need to make the equipment, which limits the transmission of vibrations to the passenger compartment (by solid and / or air), both more compact and simpler to assemble.

[0011] Prior art solutions, in that they include several parts to be assembled and a generally thick polyurethane foam, can be both difficult to assemble and to make more compact. Description of the invention

[0012] The purpose of this disclosure is to remedy all or part of the limitations of prior art solutions, in particular those described above, by proposing a solution which notably improves thermal diffusion while limiting the airborne transmission of vibrations generated by a vibrating device.

[0013] Furthermore, the present disclosure aims to propose a solution enabling, in certain embodiments at least, the integration of a vibrating device in a simple and compact manner into a motor vehicle.

[0014] To this end, he proposed, according to a first aspect, an encapsulation device comprising shells intended to be assembled together to form an internal volume suitable for receiving a vibrating device, one of the shells of said encapsulation device having an opening allowing the passage of a connector to connect the vibrating device to equipment located outside the internal volume of said encapsulation device, in which: - each shell has an inner face covered with an inner skin of elastomeric material, said inner skins forming, when the shells are assembled, an inner envelope of elastomeric material, said inner envelope surrounding the vibrating device and delimiting the internal volume, a at least part of the inner casing not being in contact with the vibrating device, - at the level of the shell containing the opening, the inner skin has an extension encroaching on a peripheral area of ​​said opening, the extension delimiting a passage in the opening with dimensions smaller than the dimensions of the opening, said extension being configured to rest on a perimeter of the connector.

[0015] Thus, the inner elastomeric casing, which surrounds the vibrating device inside the assembled shells, limits the airborne (and potentially solid-borne) transmission of vibrations generated by the vibrating device. Furthermore, this inner casing extends at the opening to bear against the perimeter of the connector, thereby improving the acoustic sealing of the opening and consequently limiting the airborne transmission of vibrations through the opening.

[0016] Since this inner envelope is not in contact with the vibrating device, at least in part, air can circulate in the internal volume around said vibrating device, which improves thermal diffusion.

[0017] In addition, the use of an elastomeric material allows, if necessary, for thinner layers than with polyurethane foam, which allows, where appropriate, for a more compact encapsulation device than in prior art solutions.

[0018] In particular embodiments, the encapsulation device may further comprise one or more of the following optional features, taken individually or in all technically possible combinations.

[0019] In particular embodiments, the extension includes a peripheral sealing lip.

[0020] In particular embodiments, one of the shells comprises internal fixing units at which the vibrating device is fixed inside the encapsulation device.

[0021] In particular embodiments, the internal fixing units correspond to elastomeric joints.

[0022] In particular embodiments, one of the shells comprises external fixing units at which the encapsulation device is fixed in a motor vehicle.

[0023] In particular embodiments, the external fixing units correspond to elastomeric joints.

[0024] In particular embodiments, the surface of the inner envelope, located opposite the vibrating device, has hollows and / or protrusions.

[0025] In particular embodiments, the shells comprise respective peripheral contact surfaces, in contact with each other when the shells are assembled together, and in which the inner skin of one of the shells covers the peripheral contact surface of that shell.

[0026] In particular embodiments, the shells are assembled together by a clipping system.

[0027] According to a second aspect, a vibrating system is proposed comprising an encapsulation device according to any one of the embodiments of this disclosure, and a vibrating device arranged inside the internal volume formed by the shells, assembled together, of said encapsulation device.

[0028] In particular embodiments of the vibrating system, the vibrating device corresponds to an air conditioning compressor.

[0029] According to a third aspect, a motor vehicle is proposed comprising a vibrating system according to any one of the embodiments of this disclosure, said vibrating system being fixed to a chassis of said motor vehicle. Presentation of the figures

[0030] The invention will be better understood upon reading the following description, given by way of non-limiting example, and made with reference to the figures which represent: - [Fig. 1] [Fig. 1]: an exploded view of an example of a vibrating system, - [Fig.2] [Fig.2]: Perspective views of a first hull and a second shell of an example of the realization of an encapsulation device, - [Fig.3] [Fig.3]: a top view of the second hull of [Fig.2], - [Fig.4] [Fig.4]: a cross-sectional view of the vibrating system of the [Fig.1] according to a first section plan, - [Fig. 5] [Fig. 5]: a cross-sectional view of the vibrating system of [Fig. 1] according to a second section plan, - [Fig.6] [Fig.6]: a partial cross-sectional view of the vibrating system at the level an opening for the passage of a connector, - [Fig.7] [Fig.7]: a perspective view of the first hull of the [Fig.2], representing internal and external fixation units of the encapsulation device, - [Fig.8] [Fig.8]: a perspective view of an internal fixation unit, - [Fig.9] [Fig.9]: a perspective view of an external fixation unit, - [Fig. 10] [Fig. 10]: Perspective views of examples of the realization of Internal skins featuring acoustic treatment.

[0031] In these figures, identical reference numerals from one figure to another designate identical or analogous elements. For clarity, the elements shown are not to scale unless otherwise stated. Description of the implementation methods

[0032] Fig. 1 schematically represents an exploded view of a non-limiting example of an embodiment of a vibrating system 10.

[0033] As illustrated in [Fig. 1], the vibrating system 10 comprises a vibrating device 20. The vibrating device 20 is preferably a vibrating device intended to be mounted in a motor vehicle. For example, the vibrating device 20 corresponds to an air conditioning compressor, a power steering pump, etc.

[0034] As illustrated in [Fig. 1], the vibrating system 10 further comprises an encapsulation device 30. Generally, the encapsulation device 30 comprises at least two shells intended to be assembled together to form an internal volume 35 adapted to receive the vibrating device 20. In the following description, and as illustrated in [Fig. 1], we consider, without limitation, the case where the encapsulation device 30 comprises two shells. However, according to other embodiments, there is nothing to preclude having more than two shells.

[0035] As illustrated by [Fig.1], the encapsulation device 30 comprises a first shell 31 and a second shell 32.

[0036] The encapsulation device 30 is for example intended to be mounted so that the second shell 32 is arranged above the first shell 31 in the motor vehicle, so that it is considered by convention that the second shell 32 is on the top side of the encapsulation device 30 and that the first shell 31 is on the bottom side of the encapsulation device 30.

[0037] The first shell 31 and the second shell 32 are for example made of thermoplastic material, reinforced or unreinforced.

[0038] As indicated above, the first shell 31 and the second shell 32, when assembled together, form an internal volume 35 in which the vibrating device 20 is disposed. The internal volume 35 thus formed is essentially closed, with the exception of one or more openings 320 provided in particular to allow the vibrating device 20, enclosed inside the encapsulation device 30, to be connected to other equipment located outside said encapsulation device 30. At least one opening 320 is used, for example, to supply the vibrating device 20 with electrical energy, to allow equipment located outside the encapsulation device 30 to control said vibrating device 20 and / or to monitor the operation of said vibrating device 20, to pass a coolant to and / or from the vibrating device 20, etc.

[0039] Fig. 2 schematically represents perspective views of examples of embodiments of the first hull 31 and the second hull 32. More particularly, part a) of Fig. 2 represents an example of embodiment of the first hull 31 and part b) represents an example of embodiment of the second hull 32.

[0040] In the non-limiting example illustrated by part b) of [Fig. 2], the second shell 32 has several openings 320 for passing connectors to connect the vibrating device 20 to equipment located outside the internal volume 35 of said encapsulation device 30. However, it should be noted that it is also possible, according to other examples, to provide openings for the passage of connectors only on the first shell 31, or on both the first shell 31 and the second shell 32. It is also possible, according to other examples, to provide a single opening 320 in the encapsulation device 30 for the passage of connectors, on either the first shell 31 or the second shell 32.

[0041] In the non-limiting example illustrated in part a) of [Fig. 2], the first shell 31 has internal mounting holes 310 for receiving internal mounting units 36 to which the vibrating device 20 is attached inside the encapsulating device 30. In this example, the first shell 31 also has external mounting holes 311 for receiving external mounting units 37 to which the encapsulating device 30 is attached in a motor vehicle. It should be noted that, according to other examples, it is also possible to attach the vibrating device 20 to the encapsulating device 30 without having internal mounting holes 310 provided for this purpose and / or to attach the encapsulating device 30 to the motor vehicle without having external mounting holes 311 provided for this purpose.

[0042] As illustrated in [Fig. 2], the inner face of the first shell 31, that is, the face of the first shell 31 intended to be opposite the vibrating device 20 in the internal volume 35, is entirely covered by a first inner skin 33 made of elastomeric material. The elastomeric material forming the first inner skin 33 is, for example, natural or synthetic rubber, silicone, a thermoplastic elastomer, etc. The first inner skin 33 can be solid or porous (for example, made of elastomeric foam). For example, the first inner skin 33 is formed by direct injection onto the inner face of the first shell 31. Generally, a solid first inner skin 33 will have a thinner profile than a porous first inner skin 33, for a constant quantity (mass) of elastomeric material.

[0043] Similarly, the inner face of the second shell 32, that is, the face of the second shell 32 intended to be opposite the vibrating device 20 in the internal volume 35, is entirely covered by a second inner skin 34 made of elastomeric material. The elastomeric material forming the second inner skin 34 The inner second skin 34 can be, for example, natural or synthetic rubber, silicone, a thermoplastic elastomer, etc. It can be solid or porous (for example, made of elastomeric foam). For example, the inner second skin 34 is formed by direct injection onto the inner face of the second shell 32. Generally, a solid inner second skin 34 will be thinner than a porous inner second skin 34, for a constant quantity (mass) of elastomeric material. In preferred embodiments, the first inner skin 33 and the inner second skin 34 are made of the same elastomeric material and / or have the same porosity characteristics (solid or porous).

[0044] When the first shell 31 and the second shell 32 are assembled, the first inner skin 33 and the second inner skin 34 join together to form an inner envelope made of elastomeric material, without interruption at the contact areas between the first shell 31 and the second shell 32, in that the first inner skin 33 and the second inner skin 34 are also in contact with each other at said contact areas. The inner envelope surrounds the vibrating device 20 and thus delimits the internal volume 35 intended to house said vibrating device 20. It should be noted that the inner envelope completely surrounds the vibrating device 20 installed inside the encapsulation device 30, except at each opening 320 provided for a connector, where a passage for the connector is advantageously provided in the inner envelope.When the encapsulation device 30 has an internal fixing hole 310, as illustrated by part a) of [Fig.2], said inner envelope may cover all or part of this internal fixing hole 310, or the inner envelope may be interrupted at the level of this internal fixing hole 310.

[0045] Figures 4 and 5 schematically represent cross-sections of the vibrating system 10 in different respective section planes AA and BB, visible in [Fig. 3]. The section planes AA and BB considered are orthogonal to each other, and both intersect an opening 320 of the second shell 32.

[0046] As illustrated in Figures 4 and 5, the first inner skin 33 and the second inner skin 34 are configured so that the inner shell is not in contact, at least partially, with the vibrating device 20. In other words, the dimensions of the internal volume 35, delimited by the inner shell, are larger than those of the vibrating device 20. Thus, air can circulate in the internal volume 35 around said vibrating device, thereby improving heat dissipation. In preferred embodiments, the first inner skin 33 and the second inner skin 34 are configured so that there is no contact between the inner shell and the vibrating device 20, except possibly in areas where the vibrating device 20 is mechanically fixed to the encapsulation device 30, for example via internal fixing units 36.

[0047] As illustrated by Figures 4 and 5, the second inner skin 34 has an extension 340 that encroaches on a peripheral area of ​​the opening 320 of the second shell 32. Thus, the extension 340 of the second inner skin 34 delimits a passage in the opening 320 which has dimensions smaller than the dimensions of the opening 320. In addition, the extension 340 is configured to bear against a periphery of the connector (not shown in Figures 4 and 5) passing through the opening 320, that is to say, the extension 340 is configured so that the dimensions of the passage it delimits are smaller than the dimensions of the cross-section of the connector (not shown in Figures 4 and 5). Figure 6 represents a partial cross-sectional view of the vibrating system 10 in plane AA, at the level of an opening 320 through which a connector 21 passes. As illustrated by Figure 6, the extension 340 of the second inner skin rests on the entire perimeter of the connector 21.Such arrangements improve the acoustic sealing of the opening 320, and such an extension 340 is preferably provided at each opening 320 to allow a connector to pass through.

[0048] In the non-limiting example illustrated in Figures 4, 5 and 6, the extension 340 is in the form of a peripheral sealing lip (lip seal). In the example illustrated in Figures 4, 5 and 6, the extension 340 has a single peripheral sealing lip, but it is also possible to have several peripheral sealing lips in order to improve the acoustic sealing at the opening 320.

[0049] As indicated above, the first shell 31 and the second shell 32 have contact areas, which typically take the form of respective peripheral contact surfaces, complementary to each other.

[0050] In the non-limiting example illustrated by figures 4 and 5, the peripheral contact surface of the first shell 31 has a peripheral bead 312, which disappears by complementarity into a corresponding peripheral housing 321 of the peripheral contact surface of the second shell 32. Such arrangements make it possible to limit the lateral displacements of the first shell 31 relative to the second shell 32, while improving the acoustic sealing at the level of the contact area.

[0051] In preferred embodiments, the inner skin of at least one of the shells, between the first shell 31 and the second shell 32, covers the entire peripheral contact surface of that shell. Such arrangements improve acoustic sealing at the contact area between the first shell 31 and the second shell 32. In the non-limiting example illustrated by Figures 4 and 5, it is the first inner skin 33 which covers the peripheral contact surface of the first shell 31 (reference 330 on the [Fig.5]).

[0052] In particular embodiments, and as illustrated by Figures 1, 2 and 3, the first shell 31 and the second shell 32 are, for example, assembled together by a clipping system 38. In general, any assembly system allowing the first shell 31 and the second shell 32 to be held together can be used, and the choice of a particular assembly system corresponds to a non-limiting variant of the present disclosure.

[0053] Figure 6 shows a perspective view of the first shell 31, the inner face of which is covered by the first inner skin 33. As illustrated in Figure 6, the first shell 31 has internal fastening units 36 arranged in internal fastening holes 310. In addition, the first shell 31 has external fastening units 37 arranged in external fastening holes 311. In the non-limiting example shown in Figure 6, the first shell 31 has four internal fastening units 36 and three external fastening units 37. Generally, it is possible to have a different number of internal fastening units 36 and / or external fastening units 37. Furthermore, in the non-limiting example shown in Figure 6, the fastening units (internal 36 or external 37) are all arranged on the first shell. 31.However, following other examples, nothing excludes having fastening units (internal 36 or external 37) only on the second shell 32, or both on the first shell 31 and the second shell 32. For example, it is possible in some cases to have external fastening units 37 only on the first shell 31 and internal fastening units 36 only on the second shell 31.

[0054] Generally, any fastening system can be used for an internal fastening unit 36 ​​or an external fastening unit 37, and the choice of a particular fastening system is a non-limiting variant of the embodiment of this disclosure.

[0055] In preferred embodiments, the internal fastening units 36 and / or the external fastening units 37 are elastomeric joints. Such arrangements are advantageous because the elastomeric joints allow for the filtering of vibrations propagating through solids from the vibrating device 20 to the passenger compartment of the motor vehicle. In the case where the internal fastening units 36 and the external fastening units 37 are elastomeric joints, the encapsulation device 30 thus introduces two successive levels of filtering of vibrations propagating through solids: - A first filtering stage between the vibrating device 20 and the encapsulation device 30, and - A second filtering stage between the encapsulation device 30 and the motor vehicle.

[0056] Figure 8 schematically represents an example of an embodiment of an internal fastening unit 36 ​​of the elastomeric joint type. As illustrated in Figure 8, the internal fastening unit 36 ​​comprises a central portion 360, the general shape of which corresponds to a hollow cylinder, intended to be fixed to the vibrating device 20, for example, by a screw / nut assembly. The central portion 360 is, for example, made of steel, aluminum, etc. The central portion 360 is surrounded by an outer portion 361, made of elastomeric material, the general shape of which also corresponds to a hollow cylinder whose internal diameter corresponds to the external diameter of the central portion 360. The outer portion 361 is, for example, made of natural or synthetic rubber, silicone, thermoplastic elastomer, etc. In this example, the outer portion 361 is intended to be fixed inside an internal fastening hole 310.

[0057] Figure 9 schematically represents an example of an embodiment of an external fastening unit 37 of the elastomeric joint type. As illustrated in Figure 9, the external fastening unit 37 comprises a central portion 370, the general shape of which corresponds to a hollow cylinder, intended to secure a vibrating system 10 in a motor vehicle, for example, by means of a screw / nut assembly. The central portion 370 is, for example, made of steel, aluminum, etc. The central portion 370 is surrounded by an intermediate portion 371, made of elastomeric material, the general shape of which also corresponds to a hollow cylinder whose internal diameter corresponds to the external diameter of the central portion 370. The intermediate portion 371 is, for example, made of natural or synthetic rubber, silicone, thermoplastic elastomer, etc.The intermediate part 371 is surrounded by an outer part 372, the general shape of which also corresponds to a hollow cylinder whose internal diameter corresponds to the external diameter of the intermediate part 371. The outer part 372 is, for example, made of steel, aluminum, thermoplastic material, etc. In this example, the outer part 372 is intended to be fixed inside an external fixing hole 311.

[0058] It should be noted that the vibrating system 10, via external mounting units 37, can be fixed directly (without intermediate equipment such as a mounting bracket) or indirectly (via intermediate equipment) to the chassis of the motor vehicle. In preferred embodiments, the vibrating system 10 is fixed directly to the chassis of the motor vehicle. Such arrangements facilitate the installation of the vibrating system 10 and reduce the space required to install said vibrating system 10 in the motor vehicle. Furthermore, compared to the prior art, the elimination of the mounting bracket (integrated into the encapsulation device 30) also eliminates the natural modes of vibration. said mounting support, and therefore to reduce the transmission of vibrations through solids from the vibrating device 20 to the motor vehicle.

[0059] In preferred embodiments, the surface of at least one of the inner skins, between the first inner skin 33 and the second inner skin 34, located opposite the vibrating device 30 in the assembled vibrating system 10, has hollows and / or protrusions. It should be noted that such hollows and / or protrusions may also be provided on both the first inner skin 33 and the second inner skin 34. The hollows and / or protrusions on the surface of an inner skin correspond to an acoustic treatment of said inner skin, aimed at improving the attenuation of airborne vibrations.Indeed, such hollows and / or protrusions allow for the diffuse reflection of incident acoustic waves, in the manner of an anechoic surface, which tends to trap these acoustic waves inside the internal volume 35 and to limit the transmission of vibrations through the air from the vibrating device 20 to the motor vehicle.

[0060] Figure 10 shows non-limiting examples of hollows and / or protrusions formed on the surface of the first inner skin 33. In the example illustrated by part a) of Figure 10, the first inner skin 33 has hollows of substantially circular and oblong shape, arranged in a regular pattern. In the example illustrated by part b) of Figure 10, the first inner skin 33 has protrusions framing substantially flat (non-hollow) parts of substantially circular and oblong shape, arranged in a regular pattern. In the example illustrated by part c) of Figure 10, the first inner skin 33 has protrusions framing hollows of substantially circular and oblong shape, arranged in a regular pattern. In the example illustrated by part d) of [Fig.10], the first inner skin 33 has protuberances which correspond to parallel lips (and with the axis AA of [Fig.3]), for example, wavy in shape. .

[0061] Generally, any shape of hollow and / or protrusion allowing diffuse reflection of incident acoustic waves may be used, and the choice of a particular shape is only a non-limiting variant of embodiment of this disclosure.

[0062] More generally, it should be noted that the embodiments of the encapsulation device 30 considered above have been described as non-limiting examples, and that other variants are therefore conceivable.

Claims

Demands

1. Encapsulation device (30) comprising shells (31, 32) intended to be assembled together to form an internal volume (35) adapted to receive a vibrating device, one of the shells of said encapsulation device having an opening for passing a connector to connect the vibrating device to equipment located outside the internal volume of said encapsulation device, characterized in that: - each shell has an inner face covered with an inner skin (33, 34) of elastomeric material, said inner skins forming, when the shells are assembled, an inner envelope of elastomeric material, said inner envelope surrounding the vibrating device and delimiting the internal volume, at least a part of the inner envelope not being in contact with the vibrating device, - at the level of the shell having the opening,The inner skin comprises an extension (340) encroaching on a peripheral area of ​​said opening, the extension delimiting a passage in the opening with dimensions smaller than the dimensions of the opening, said extension being configured to bear against a perimeter u connector.

2. Encapsulation device (30) according to claim 1, wherein the extension comprises a peripheral sealing lip.

3. Encapsulation device (30) according to any one of the preceding claims, wherein one of the shells has internal fixing units at which the vibrating device is fixed inside the encapsulation device.

4. Encapsulation device (30) according to claim 3, wherein the internal fixing units correspond to elastomeric joints.

5. Encapsulation device (30) according to any one of the preceding claims, wherein one of the shells comprises external fixing units at which the encapsulation device is fixed in a motor vehicle.

6. Encapsulation device (30) according to claim 5, wherein the external fixing units correspond to elastomeric joints.

7. Encapsulation device (30) according to any one of the preceding claims, wherein the surface of one of the inner skins, located opposite the vibrating device, has hollows and / or protrusions.

8. Encapsulation device (30) according to any one of the preceding claims, wherein the shells comprise respective peripheral contact surfaces, in contact with each other when the shells are assembled together, and wherein the inner skin of one of the shells covers the peripheral contact surface of that shell.

9. Encapsulation device (30) according to any one of the preceding claims, wherein the shells are assembled together by a clipping system.

10. Vibrating system comprising an encapsulation device (30) according to any one of the preceding claims and a vibrating device arranged inside the internal volume formed by the shells, assembled together, of said encapsulation device.

11. Vibrating system according to claim 10, wherein the vibrating device corresponds to an air conditioning compressor.

12. Motor vehicle comprising a vibrating system according to any one of claims 10 to 11, said vibrating system being fixed to a chassis of said motor vehicle.