WO2021156075A1 - Suspension d'un groupe auxiliaire - Google Patents

Suspension d'un groupe auxiliaire Download PDF

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Publication number
WO2021156075A1
WO2021156075A1 PCT/EP2021/051440 EP2021051440W WO2021156075A1 WO 2021156075 A1 WO2021156075 A1 WO 2021156075A1 EP 2021051440 W EP2021051440 W EP 2021051440W WO 2021156075 A1 WO2021156075 A1 WO 2021156075A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
spring elements
arrangement according
elements
auxiliary unit
Prior art date
Application number
PCT/EP2021/051440
Other languages
German (de)
English (en)
Inventor
Simon RIEDRICH
Yannick ELMENTHALER
Walter Zipp
Thomas Hartmann
Original Assignee
Ipetronik Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ipetronik Gmbh & Co. Kg filed Critical Ipetronik Gmbh & Co. Kg
Publication of WO2021156075A1 publication Critical patent/WO2021156075A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085—Use of both rubber and metal springs

Definitions

  • the invention relates to an arrangement (or a system) for a motor vehicle, comprising a plurality of spring elements and at least one auxiliary unit, as well as a motor vehicle.
  • auxiliary units in or on a vehicle
  • these are often decoupled, in particular mounted elastically in (or on) the vehicle.
  • Such decoupling can be provided by spring-damper combinations, which for example consist entirely of rubber elements.
  • Metal springs can also be combined with rubber dampers.
  • decoupling e.g. an air conditioning compressor in a car
  • decoupling structures with helical springs have no (additional) damping around the rest position, but rubber stops can be provided to limit the oscillation paths.
  • Such arrangements (systems) for the storage (mounting) of auxiliary units are, however, viewed as in need of improvement, especially with regard to external influences.
  • the object of the invention is to propose an arrangement (or a system) for a vehicle, preferably a motor vehicle, in particular with an electric, preferably purely electric, drive, in which vibrations are transmitted from at least one auxiliary unit (in particular air conditioning compressor) to the vehicle the simplest, most effective and reliable way possible.
  • a vehicle preferably a motor vehicle, in particular with an electric, preferably purely electric, drive, in which vibrations are transmitted from at least one auxiliary unit (in particular air conditioning compressor) to the vehicle the simplest, most effective and reliable way possible.
  • an arrangement (system) for a vehicle preferably a motor vehicle, more preferably with an electric, even more preferably a purely electric drive, comprising at least one auxiliary unit (preferably driven by an electric motor or containing an electric motor), as well as several spring elements for resilient holder of the auxiliary unit, wherein at least one of the plurality of spring elements has a spring axis which runs obliquely with respect to a spring axis of at least one further spring element and / or obliquely with respect to the vertical.
  • the auxiliary unit preferably has at least one air conditioning compressor (refrigerant compressor) (in particular driven by an electric motor or containing at least one electric motor) or is formed by one.
  • the vertically installed (i.e. parallel aligned) coil springs in the prior art are comparatively soft in the transverse direction (or horizontal direction) and therefore not very stable in position or can be easily bent with little resistance.
  • decoupling actually desired by the helical spring can be achieved in the idle state (i.e. without external forces / force impulses to be resilient or damped) against stops (e.g. rubber stops) must be pressed. So it is in the state of the Technology proposes an overly sensitive horizontal positioning that limits the overall decoupling effect.
  • the concept according to the invention can be used to improve robustness against undesired effects (for example pre-stresses, such as in particular from refrigerant lines or other lines / connecting lines) by means of simple measures.
  • undesired effects for example pre-stresses, such as in particular from refrigerant lines or other lines / connecting lines
  • the actual decoupling in normal operation is fully effective (or without contact with any stops), so that, for example, existing stops only come into play in the event of a particularly pronounced excitation (poor road excitation).
  • (decoupling) springs or spring elements are inclined in opposite directions.
  • a possible pre-tensioning through connected lines can act with a vectorial component along the spring axis (central axis) of at least one of the springs (helical springs) involved in several (in particular every possible) direction (and not, for example, across it).
  • the entire decoupled structure preferably has a robust centering, in particular around its central position, in contrast to a parallel arrangement of vertically running (helical) springs, which do not have (sufficient) stability with regard to relatively high pre-stresses (or in particular relatively high horizontal components of pre-stresses) the positioning allows. This is particularly true for comparatively soft decoupling.
  • the (respective) spring element preferably has at one (first) end a first connection area (or connection area) in / on which it is connected to the auxiliary unit and at a further (second) end a connection area (or connection area) in / on which it is connected to the vehicle (regardless of the arrangement / system, which in the application can also be part of the vehicle). If the arrangement (system) according to the invention is explained here and below with reference to the vehicle, the vehicle should always be considered without the arrangement (the system) (unless the context indicates something different) become. For example, when it comes to relative movements of the arrangement (the system) or the auxiliary unit with respect to the vehicle, the auxiliary unit as such is not to be regarded as a component of the vehicle.
  • the ends (attachment areas) of several or all of the spring elements connected to the vehicle are preferably fixed in position to one another, that is to say in particular rigidly connected to one another, possibly via one or several components.
  • the (respective) spring axis is preferably defined by a connecting line between the two ends of the (respective) spring element. If the ends are flat, reference should preferably be made to a center point (center of gravity) of the respective connection surface. Furthermore, the (respective) spring element should preferably be viewed in a state of rest of the arrangement (of the system) or of the vehicle.
  • the spring axis is preferably the central axis of rotational symmetry (that is to say, for example, the central axis of a cylinder).
  • Rotationally symmetrical geometries should also be understood to mean geometries which, for example, have a rotationally symmetrical envelope (such as, for example, a helical spring with, for example, a cylindrical envelope).
  • the (respective) spring elements are preferably designed and arranged within the arrangement (system) that at least (or only) the end of the spring element connected to the auxiliary unit (or coupled to the auxiliary unit) in at least two directions (in particular opposite a fixed point of the Vehicle) is movable, preferably at least in the direction of the spring axis and a direction transverse to it (perpendicular to it) and / or in the horizontal direction.
  • the (respective) spring element can preferably both be linearly (one-dimensional) deformed - for example compressed and / or stretched (in particular along the spring axis) - and also bent.
  • the (respective) spring element should preferably be flexible in several coordinate directions and / or rotational orientations and / or degrees of freedom.
  • the auxiliary unit is preferably an electric motor auxiliary unit.
  • the auxiliary unit can have at least one electric motor.
  • An auxiliary unit can be understood as an auxiliary unit, in particular to distinguish it from a flake unit, which does not directly effect its movement.
  • the auxiliary unit can comprise a compressor and / or a pump and / or a fan or be formed therefrom.
  • An inclined course is to be understood as an at least non-parallel course (either one spring axis relative to the other, or one spring axis relative to the vertical).
  • the vertical refers to a vertical in the state of use of the arrangement (the system) (i.e. when it is installed inside the motor vehicle).
  • An oblique course can include the fact that the respective axes intersect or are skewed to one another.
  • An angle of one spring axis to at least one other spring axis is preferably at least 10 °, more preferably at least 20 °, even more preferably at least 30 °, even more preferably at least 35 ° and / or at most 120 °, preferably at most 90 °, even more preferably at most 70 °, even more preferably at most 60 °.
  • Each lower limit mentioned in this paragraph can be combined with any of the upper limits mentioned in this paragraph or with any higher lower limit (as upper limit), insofar as such is mentioned, to form a range according to the implementation (or claimed hereby).
  • each upper limit can also be combined with each further (lower) upper limit to form a range according to the embodiment, provided that such a lower upper limit is mentioned.
  • An angle of at least one of the spring elements (possibly all or all spring elements) relative to the vertical is preferably at least 5 °, more preferably at least 10 °, even more preferably at least 15 °, possibly at least 20 ° and / or at most 70 °, preferably at most 60 °, even more preferably at most 50 °, even more preferably at most 45 °, even more preferably at most 30 °.
  • Each of the lower limits mentioned in this paragraph can be combined with any of the upper limits mentioned in this paragraph or with any higher lower limit (as an upper limit), insofar as such is mentioned, to form an implementation range.
  • each upper limit can also be combined with each further (lower) upper limit to form a range according to the embodiment, provided that such a lower upper limit is mentioned.
  • the auxiliary unit can be present as a (common) assembly, for example defined by an (outer) housing and a corresponding housing interior.
  • the auxiliary unit can be arranged on an adapter and / or storage frame. Alternatively or additionally, the auxiliary unit can be arranged on an adapter and / or bearing plate.
  • the auxiliary unit can either be held (supporting) or suspended (by means of at least one corresponding suspension) or both.
  • At least one (or more or all) of the spring elements preferably has an at least sectionally linear spring characteristic (along the spring axis).
  • the linear behavior can be present, for example, via at least an expansion and / or compression of 1 mm, possibly at least 5 mm (compared to the initial state in which the arrangement (the system) or the motor vehicle is at rest).
  • at least one (preferably several or all) of the spring elements can have an at least partially non-linear, preferably progressive, spring characteristic (along the spring axis).
  • Such a non-linear, in particular progressive, behavior can already exist, for example, even with expansions and / or compressions of less than 5 mm or even less than 1 mm (compared to an initial state in which the arrangement (system) or the motor vehicle is at rest) .
  • At least one (or more or all) of the spring elements can have both (in sections) a linear spring characteristic and (in sections) a non-linear (in particular progressive) spring characteristic (for example in the case of pronounced elongations / compressions or deformations).
  • At least one of the spring elements can be designed to be rotationally symmetrical (at least in sections) (for example by a straight cylinder, in particular a straight circular cylinder).
  • At least one (or more or all) of the spring elements can define (at least in sections) a rotationally symmetrical envelope (such as, for example, a classic helical spring simulating a circular cylinder).
  • At least one (or several or all) of the spring elements can form a cylinder, in particular a straight cylinder, preferably a (straight) circular cylinder.
  • At least one of the spring elements can at least in sections define an envelope which forms a cylinder, in particular a straight cylinder, preferably a (straight) circular cylinder.
  • At least one (possibly several or all) of the spring elements can comprise (at least) one helical spring or be formed by one.
  • the (respective) helical spring can, for example, simulate a (straight) circular cylinder or simulate a lateral surface of a truncated cone or simulate an outer surface of a barrel shape.
  • Particularly preferred is a helical spring which simulates a lateral surface of a (straight) circular cylinder or in which the envelope has a (straight) circular cylinder shape.
  • At least one (possibly several or all) of the spring elements is a tension spring (or is tensile loaded when the arrangement or the vehicle is in the idle state).
  • At least one (possibly several or all) of the spring elements can be a compression spring (or in the rest state of the arrangement or the vehicle) can be pressure-loaded.
  • a state of rest is mentioned here (further above or below), this is in particular a State of the arrangement (of the system) or of the motor vehicle in which it is at rest, in particular no vibrations are present.
  • either only tension springs or only compression springs (as spring elements) or both compression springs and tension springs can be present.
  • the spring elements can be in a triangular configuration or in a square configuration (or in general: polygonal configuration).
  • At least one of the spring elements is configured so that it is inclined inward (i.e. in particular in the direction of at least one further spring element and / or in the direction of a line passing through the center of gravity of the auxiliary unit, namely vertically , runs).
  • at least one (or all or at least several) of the spring elements can also incline outwards (so that in particular the corresponding spring axis extends further and further, running from bottom to top, from the spring axis of at least one further spring element and / or a vertical center line of the Auxiliary unit, which goes through its center of gravity, removed).
  • the spring axes of the spring elements preferably lie on a (common) conical surface or at least run parallel to one / the (common) conical surface.
  • the outer surface of the cone is preferably the surface of a cone which tapers from the bottom upwards (alternatively the cone can also widen upwards). This preferably applies to at least two, preferably at least three (generally: several or all) spring elements.
  • the spring axes (central axes) of the respective spring elements can be aligned along / the lateral surface of a cone.
  • a center of gravity of the (decoupled or to be decoupled) auxiliary unit is preferably at a distance of less than 10 cm, more preferably less than 5 cm, with respect to a central axis of the cone.
  • the center of gravity of the auxiliary unit particularly preferably runs through the central axis of the cone.
  • At least one of the (possibly several or all) spring elements is / are preferably (at least in sections) made of metal, more preferably steel.
  • At least one of the (possibly several or all) spring elements preferably has a spring axis (central axis), in the direction of which the respective spring element has a higher rigidity than in one that deviates from the spring axis (central axis) (in particular running transversely to the first direction or perpendicular to the first direction and / or horizontal)
  • a lower stiffness in the deviating (second) direction should exist in particular if, with the end of the respective spring element fixed (facing the vehicle), a force to displace the end of the spring element facing the auxiliary unit along the spring axis (central axis), for example by 1 mm or 1 cm, is greater than a force that has to be applied for the same amount of displacement, but in the different direction (transverse direction or, if applicable, horizontal direction and / or perpendicular to the spring axis).
  • the respective (required) forces should preferably be measured at room temperature (20 ° C) and in a state (of the respective) spring element in which the spring element is not arranged between the vehicle and ancillary unit (or is in its natural or relaxed state ).
  • the respective (required) force for displacing the end in the direction of the spring axis is preferably 1.5 times, more preferably at least 3 times as high as a force in the deviating (second) direction.
  • the arrangement can comprise at least one damper element, in particular comprising or formed by a rubber element.
  • the damper element (rubber element) is preferably assigned to at least one of the spring elements, in particular arranged (preferably directly) on a (respective) spring element.
  • at least one (or exactly one) damper element (rubber element) is arranged on each spring element.
  • the (respective) damper element rubber element
  • the (respective) spring element can be arranged below the (respective) spring element, so that the (respective) spring element is supported on the damper element.
  • an arrangement (system) above the (respective) spring element is also possible (for example in the case of a hanging flaltering of the auxiliary unit).
  • the damper element can be designed to be rotationally symmetrical and / or cylindrical, particularly preferably as a (preferably straight) circular cylinder.
  • the damper element can be aligned with the (respective) spring element, preferably in such a way that a central axis (central axis of symmetry) of the damper element (rubber element) is aligned with the spring axis (central axis) of the respective spring element or forms a common straight line.
  • the damper element (rubber element) can have a larger diameter (in particular perpendicular to the spring axis or respective central axis) than the spring element (or vice versa).
  • a vehicle preferably a motor vehicle (e.g. car or truck), in particular with an electric, preferably purely electric drive, comprising the above arrangement (system), in particular in the assembled state.
  • a motor vehicle e.g. car or truck
  • an electric, preferably purely electric drive comprising the above arrangement (system), in particular in the assembled state.
  • the above-mentioned object is also achieved in particular by a system comprising the elements of the arrangement (either in the assembled or unassembled state).
  • the system can preferably be configured in such a way that an arrangement as described above and below can be implemented.
  • a spring element arrangement comprising the above spring elements, but not necessarily the ancillary unit (which is also, for example, in a subsequent Assembly step, but not as part of the spring element arrangement discussed here) can be added.
  • a corresponding system comprising a plurality of spring elements in such a way that the spring element arrangement or the above arrangement (comprising the auxiliary unit) can be implemented is also hereby disclosed and claimed.
  • the above object is also achieved in particular by using one of the arrangements and / or systems described above and / or below for a vehicle, in particular a motor vehicle (particularly preferably a car or truck), in particular with an electric, preferably purely electric, drive.
  • a vehicle in particular a motor vehicle (particularly preferably a car or truck), in particular with an electric, preferably purely electric, drive.
  • Fig. 2 is a cross-section of Fig. 1 along the line A-A;
  • FIG. 3 shows a schematic illustration analogous to FIG. 1 of a first exemplary embodiment according to the invention
  • Fig. 4 is a cross-section along the line A-A in Fig. 3;
  • FIGS. 1 and 2 show a schematic representation analogous to FIGS. 1 and 2 of a second exemplary embodiment according to the invention
  • Fig. 6 is a cross-section along the line A-A in Fig. 5;
  • FIG. 7 shows a motor vehicle according to the invention in a schematic view.
  • auxiliary unit 10 for example air conditioning compressor or electric refrigerant compressor
  • adapter frame 11 The (optional) adapter frame 11 is arranged on several spring elements (coil springs) 12 with central axes 16.
  • damper springs 12 are in turn arranged on a damper element or damper stop (rubber stop or rubber element) 13 (see also FIG. 2).
  • FIGS. 3 and 4 show a schematic side view (FIG. 3) and a schematic section along the line AA in FIG. 3 (FIG. 4) of a first embodiment of an arrangement according to the invention.
  • the arrangement is constructed like the arrangement according to FIGS. 1 and 2 with the following Differed.
  • the spring elements 12 are not oriented vertically, but at an angle to the vertical and also at an (oblique or acute) angle to each other.
  • the spring elements 12 or damper elements 13 according to FIGS. 3 and 4 form an (elongated) rectangle.
  • FIGS. 5 and 6 show views analogous to FIGS. 3 and 4 of a second embodiment according to the invention.
  • Lines 15 (preferably cooling lines or refrigerant lines) are attached to the auxiliary unit 10 of the arrangement. If these lines 15 now exert a tensile force in the (approximately) horizontal direction, in this situation, for example, the spring element 12 shown on the far right in FIG that they (no longer) enable (effective) suspension against shocks or vibrations (in particular no effective structure-borne sound decoupling of operational vibrations of the auxiliary unit / the air conditioning compressor).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un système pour un véhicule automobile, en particulier un véhicule à un entraînement électrique, de préférence purement électrique, comprenant au moins un groupe auxiliaire (10), en particulier un compresseur de climatisation, ainsi que plusieurs éléments ressort (12) pour la suspension du groupe auxiliaire (10), au moins un des éléments ressort (12) présentant un axe de ressort (16) qui s'étend en biais par rapport à un axe de ressort (16) d'au moins un autre élément ressort (12) et/ou par rapport à la verticale.
PCT/EP2021/051440 2020-02-05 2021-01-22 Suspension d'un groupe auxiliaire WO2021156075A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020102975.6 2020-02-05
DE102020102975 2020-02-05
DE102020129399.2 2020-11-09
DE102020129399.2A DE102020129399A1 (de) 2020-02-05 2020-11-09 Federung eines Nebenaggregates

Publications (1)

Publication Number Publication Date
WO2021156075A1 true WO2021156075A1 (fr) 2021-08-12

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PCT/EP2021/051440 WO2021156075A1 (fr) 2020-02-05 2021-01-22 Suspension d'un groupe auxiliaire

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DE (1) DE102020129399A1 (fr)
WO (1) WO2021156075A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4198337A1 (fr) * 2021-12-15 2023-06-21 Versuni Holding B.V. Système comportant un objet supporté par un support amortisseur de vibrations

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406291A (en) * 1971-09-14 1975-09-17 Danfoss As Spring suspension arrangement for a motor compressor
JPS58187589A (ja) * 1982-04-26 1983-11-01 Matsushita Electric Ind Co Ltd 密閉型電動圧縮機の防振装置
EP1596144A1 (fr) * 2004-05-14 2005-11-16 Twinbird Corporation Suspension d'un moteur Stirling
KR20060091644A (ko) * 2005-02-16 2006-08-21 엘지전자 주식회사 리니어 압축기의 지지용 스프링 설치구조
JP2007010088A (ja) * 2005-07-01 2007-01-18 Fujitsu Ltd 防振装置
CN107650625A (zh) * 2017-09-13 2018-02-02 珠海格力电器股份有限公司 复合式减振装置和车载空调

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406291A (en) * 1971-09-14 1975-09-17 Danfoss As Spring suspension arrangement for a motor compressor
JPS58187589A (ja) * 1982-04-26 1983-11-01 Matsushita Electric Ind Co Ltd 密閉型電動圧縮機の防振装置
EP1596144A1 (fr) * 2004-05-14 2005-11-16 Twinbird Corporation Suspension d'un moteur Stirling
KR20060091644A (ko) * 2005-02-16 2006-08-21 엘지전자 주식회사 리니어 압축기의 지지용 스프링 설치구조
JP2007010088A (ja) * 2005-07-01 2007-01-18 Fujitsu Ltd 防振装置
CN107650625A (zh) * 2017-09-13 2018-02-02 珠海格力电器股份有限公司 复合式减振装置和车载空调

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