EP3561433B1 - Heat exchanger assembly - Google Patents
Heat exchanger assembly Download PDFInfo
- Publication number
- EP3561433B1 EP3561433B1 EP18461554.0A EP18461554A EP3561433B1 EP 3561433 B1 EP3561433 B1 EP 3561433B1 EP 18461554 A EP18461554 A EP 18461554A EP 3561433 B1 EP3561433 B1 EP 3561433B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- housing
- resilient material
- exchanger assembly
- exchanger core
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000012858 resilient material Substances 0.000 claims description 35
- 229920001971 elastomer Polymers 0.000 claims description 19
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 description 14
- 239000003507 refrigerant Substances 0.000 description 10
- 239000002826 coolant Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2235/00—Means for filling gaps between elements, e.g. between conduits within casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
Definitions
- the present invention relates to heat exchangers, particularly, the present invention relates to a heat exchanger assembly for an air conditioning system of a vehicle.
- a heat exchanger according to the preamble of claim 1 is disclosed in document DE 29 48 123 A1 .
- heat exchangers In case of vehicle air conditioning systems, heat exchangers, particularly water condensers and chillers facilitate circulation of refrigerant fluid and coolant in adjacent yet separated spaces, to allow heat exchange between heat exchanging fluids.
- the chiller facilitates extraction of heat from a battery pack.
- the heat exchanger i.e. the chiller facilitates heat exchange between coolant and refrigerant fluid.
- the coolant after extracting heat from the battery pack is cooled by the refrigerant from an air conditioning loop for ensuring a supply of cool coolant to the battery pack, thereby resulting in cooling of the battery pack.
- the cooling of the battery pack prevents any damage thereto due to overheating and also ensures efficient operation thereof.
- refrigerant gas loses heat energy by heat exchange, gets cooled, and condenses into liquid phase. Thereafter, the high pressure, high temperature liquid refrigerant passes through an expansion valve, wherein the expansion valve lowers the pressure of the refrigerant, and thereby cools it due to phase change of the liquid refrigerant.
- the low pressure and low temperature refrigerant liquid and flash gas leaving the expansion valve flows at proper rate through various elements disposed along the air conditioning loop such as the evaporator and compressor to complete an air conditioning cycle.
- the heat exchanger specifically, a condenser disposed in an air conditioning loop is connected to a compressor via aluminum-rubber hoses and receives compressed refrigerant in gaseous state from the compressor.
- the compressor due to inherent nature of operation thereof creates vibration and pulsations in the refrigerant lines of the air conditioning loop. These vibrations reach the condenser. From the condenser, the vibrations are transmitted to a vehicle body. The vibrations generate unwanted noise, especially in case of electric vehicles. These vibrations may cause damage to critical elements mounted on the vehicle body. Conversely, the vibrations from the vehicle can be transferred to the air conditioning loop and damage its components.
- Some condensers may be housed inside a housing that in turn is mounted on the vehicle body or frame via mountings and rubber dampers to prevent condenser vibration from reaching the vehicle body.
- the heat exchanger core of the condenser along with the housing, mountings and rubber dampers are collectively referred to as heat exchanger assembly.
- the rubber dampers may sometimes be ineffective in preventing condenser vibrations from reaching the vehicle body. Specifically, as the condenser is in direct contact with the housing, the vibrations are transmitted from the condenser to the vehicle body via the housing and the mountings in spite of the presence of the rubber dampers. The vibration and noise reaching the vehicle cabin may cause discomfort to vehicle occupants.
- An object of the present invention is to provide a heat exchanger assembly for an air conditioning system that obviates the above mentioned drawbacks with associated conventional heat exchanger assembly that comprises a heat exchanger encapsulated by a dedicated housing.
- the present invention envisages a heat exchanger assembly for an air conditioning system of a vehicle in accordance with an embodiment of the present invention.
- the heat exchanger assembly includes a heat exchanger core and housing with walls that enclose the heat exchanger core.
- the walls of the housing are spaced from the heat exchanger core, wherein the created space is filled at least partly by a resilient material so that the resilient material constitutes an exclusive connection between the housing and the heat exchanger core.
- the resilient material fills the whole space between the housing and the heat exchanger core.
- the housing is of plastic material.
- the resilient material is foam.
- the resilient material is rubber.
- the resilient material is polyurethane foam.
- the resilient material is Ethylene Propylene Diene Monomer (EPDM) foam.
- the resilient material has stiffness in the range of 5-500 N/mm.
- the heat exchanger core is a condenser.
- the heat exchanger assembly may include auxiliary elements, which are located inside the housing and connected with the housing exclusively through the resilient material.
- FIGURE 1a isometric view of a prior art heat exchanger assembly 10 that includes a housing 1 enclosing a heat exchanger core 2 and an auxiliary element such as for example, a receiver drier bottle 3 is illustrated.
- the heat exchanger core 2 and the receiver drier bottle 3 are depicted with broken lines, while the housing 1 is depicted with solid lines.
- the heat exchanger core 2 often vibrates during operation - in case of condensers, this may be due to operation of a compressor also attached in the AC loop.
- a condenser is housed inside a housing 1 that in turn is mounted on a vehicle body or frame (not illustrated in FIGURE 1a ) via mounting elements 4 and a plurality of rubber dampers (rubber dumpers not illustrated in these drawings).
- the mounting elements 4 may be for example flanges extending from the housing 1 for facilitating mounting of the housing 1.
- FIGURE 1b schematic representation of another prior art heat exchanger assembly 20 including only a heat exchanger core 12 encapsulated by a housing 11 is depicted.
- the heat exchanger core 12 is depicted with broken lines, while the housing 11 is depicted with solid lines.
- the housing 11 in turn is mounted on a vehicle body or frame (not illustrated in FIGURE 1b ) via mounting elements 14 and a plurality of rubber dampers (not illustrated in the FIGURE 1b ).
- FIGURE 2 illustrates schematic representation of the prior art heat exchanger assembly 10, 20, wherein the heat exchanger core 2, 12 either alone as illustrated in FIGURE 1b or along with the receiver drier 3 as illustrated in FIGURE 1a is housed within the housing 1, 11 and the housing 1, 11 in turn is mounted on the vehicle body or frame (not illustrated in FIGURE 2 ), via mounting elements 4, 14 (not illustrated in FIGURE 2 ) configured on the housing 1, 11 and the rubber dampers 5 disposed between the housing 1, 11 and the vehicle body or frame.
- the rubber dampers 5 between the housing 1, 11 and the vehicle body or frame may not be effective enough in some cases.
- the noise produced due to vibrations of the heat exchanger core 2, 12 in the housing 1, 11 will reach the vehicle cabin in spite of the presence of the rubber dampers 5.
- the rubber dampers 5 also require additional elements such as compression limiters for preventing excessive deformation of the rubber dampers 5.
- FIG. 3a it depicts schematic representation of a heat exchanger assembly 100 for an air conditioning system of a vehicle in accordance with an embodiment of the present invention, wherein a housing 110 encloses a heat exchanger core 120, such that interior walls 112 of the housing 110 are spaced from corresponding exterior walls 122 of the heat exchanger core 120.
- a resilient material 130 for example, rubber foam fills at least part of the space between the housing 110 and the heat exchanger core 120 as illustrated in FIGURE 3a and constitutes exclusive connection between the housing 110 and the heat exchanger core 120. Thanks to such arrangement, it dampens and prevents heat exchanger core 120 vibrations from reaching the housing 110, thereby mitigating to a substantial degree the noise which might be produced.
- the resilient material 130 can fill all of the space between the housing 110 and the heat exchanger core 120 as illustrated in FIGURE 3b . Further, the elements mounted on the vehicle body and inside vehicle cabin are protected against vibrations from the heat exchanger core 120 and service life thereof is increased. Also, the housing 110 protects the heat exchanger core 120 against damage from impacts and unfavorable environment conditions such as corrosion, dust, moisture and stone impact. This may be also the case for other components of the heat exchanger assembly, which might be located within the housing and be encapsulated in the resilient material.
- FIGURE 3c illustrates schematic representation of the heat exchanger assembly 100, 200, wherein the resilient material 130 acting as rubber dampers is disposed between the housing 110 and the heat exchanger core 120.
- the configuration and placement of the resilient material 130 between the housing 110 and the heat exchanger core 120 is based on vibration isolation requirements at different regions between the housing 110 and the heat exchanger core 120 of the heat exchanger assembly 100. Further, the heat exchanger assembly is simple in construction. Still further, the heat exchanger assembly can be conveniently retrofitted on existing air conditioning systems by carrying out minor modifications.
- the resilient material 130 surrounds the heat exchanger core 120 from all sides except one side, for example, resilient material 130 surrounds all sides of the heat exchanger core 120 except the top of the heat exchanger core 120.
- the space between at least one exterior wall 122 of the heat exchanger core 120 and corresponding interior walls 112 of the housing 110 is unfilled.
- the resilient material 130 surrounds the heat exchanger core 120 from all sides. Depending on the nature of vibration which are foreseen in specific applications, the material may be absent on other sides.
- the housing 110 usually includes mounting means, such as for example a plurality of flanges with holes configured thereon, such that holes configured on the flanges of the housing 110 match with corresponding holes configured on either one of main body and flanges extending from the main body for facilitating secure mounting of the housing 110 on the main body by using fasteners.
- mounting means such as for example a plurality of flanges with holes configured thereon, such that holes configured on the flanges of the housing 110 match with corresponding holes configured on either one of main body and flanges extending from the main body for facilitating secure mounting of the housing 110 on the main body by using fasteners.
- the housing 110 can be of plastic material.
- the resilient material can be any foam that exhibits stiffness in the range of 5-500 N/mm.
- the resilient material 130 can be for example, Ethylene Propylene Diene Monomer (EPDM) foam of closed or semi closed structure or different kind of rubber foam. Further, the resilient material 130 can be for example, polyurethane foam.
- the heat exchanger core is for example condenser.
- the heat exchanger can further comprise further auxiliary elements, like a receiver drier bottle.
- the auxiliary elements are also connected to the housing exclusively through the resilient material 130, analogously to the relation between the heat exchanger core 120 and the housing 110.
- the heat exchanger assembly 100 in accordance with the present invention is used for achieving vibration and thermal isolation of elements such as condensers, chillers used in vehicle air conditioning applications, however, the heat exchanger assembly 100 can also be used for vibration isolation of variety of elements used presently or developed in future for use in air conditioning applications and other applications.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
- The present invention relates to heat exchangers, particularly, the present invention relates to a heat exchanger assembly for an air conditioning system of a vehicle. A heat exchanger according to the preamble of
claim 1 is disclosed in documentDE 29 48 123 A1 . - In case of vehicle air conditioning systems, heat exchangers, particularly water condensers and chillers facilitate circulation of refrigerant fluid and coolant in adjacent yet separated spaces, to allow heat exchange between heat exchanging fluids. The chiller facilitates extraction of heat from a battery pack. Particularly, the heat exchanger, i.e. the chiller facilitates heat exchange between coolant and refrigerant fluid. The coolant after extracting heat from the battery pack is cooled by the refrigerant from an air conditioning loop for ensuring a supply of cool coolant to the battery pack, thereby resulting in cooling of the battery pack. The cooling of the battery pack prevents any damage thereto due to overheating and also ensures efficient operation thereof. Also, in case of a condenser, refrigerant gas loses heat energy by heat exchange, gets cooled, and condenses into liquid phase. Thereafter, the high pressure, high temperature liquid refrigerant passes through an expansion valve, wherein the expansion valve lowers the pressure of the refrigerant, and thereby cools it due to phase change of the liquid refrigerant. The low pressure and low temperature refrigerant liquid and flash gas leaving the expansion valve flows at proper rate through various elements disposed along the air conditioning loop such as the evaporator and compressor to complete an air conditioning cycle.
- The heat exchanger, specifically, a condenser disposed in an air conditioning loop is connected to a compressor via aluminum-rubber hoses and receives compressed refrigerant in gaseous state from the compressor. The compressor due to inherent nature of operation thereof creates vibration and pulsations in the refrigerant lines of the air conditioning loop. These vibrations reach the condenser. From the condenser, the vibrations are transmitted to a vehicle body. The vibrations generate unwanted noise, especially in case of electric vehicles. These vibrations may cause damage to critical elements mounted on the vehicle body. Conversely, the vibrations from the vehicle can be transferred to the air conditioning loop and damage its components. Some condensers may be housed inside a housing that in turn is mounted on the vehicle body or frame via mountings and rubber dampers to prevent condenser vibration from reaching the vehicle body. The heat exchanger core of the condenser along with the housing, mountings and rubber dampers are collectively referred to as heat exchanger assembly. The rubber dampers may sometimes be ineffective in preventing condenser vibrations from reaching the vehicle body. Specifically, as the condenser is in direct contact with the housing, the vibrations are transmitted from the condenser to the vehicle body via the housing and the mountings in spite of the presence of the rubber dampers. The vibration and noise reaching the vehicle cabin may cause discomfort to vehicle occupants. Also, due to condenser vibrations, chances are that the condenser repeatedly strikes against interior walls of the housing, and accordingly, service life and mechanical efficiency of the condenser is adversely affected. Still further, in case of heat pump mounted on the vehicle body, for efficient operation of the heat pump, the heat pump is required to be thermally insulated from the environment.
- An object of the present invention is to provide a heat exchanger assembly for an air conditioning system that obviates the above mentioned drawbacks with associated conventional heat exchanger assembly that comprises a heat exchanger encapsulated by a dedicated housing.
- The present invention envisages a heat exchanger assembly for an air conditioning system of a vehicle in accordance with an embodiment of the present invention. The heat exchanger assembly includes a heat exchanger core and housing with walls that enclose the heat exchanger core. The walls of the housing are spaced from the heat exchanger core, wherein the created space is filled at least partly by a resilient material so that the resilient material constitutes an exclusive connection between the housing and the heat exchanger core.
- Preferably, the resilient material fills the whole space between the housing and the heat exchanger core.
- Preferably, the housing is of plastic material.
- Preferably, the resilient material is foam.
- Preferably, the resilient material is rubber.
- Preferably, the resilient material is polyurethane foam.
- Preferably, the resilient material is Ethylene Propylene Diene Monomer (EPDM) foam.
- Preferably, the resilient material has stiffness in the range of 5-500 N/mm.
- Preferably, the heat exchanger core is a condenser.
- Further, the heat exchanger assembly may include auxiliary elements, which are located inside the housing and connected with the housing exclusively through the resilient material.
- Other characteristics, details and advantages of the invention can be inferred from the description of the invention hereunder. A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying figures, wherein:
-
FIGURE 1a illustrates schematic representation of a prior art heat exchanger assembly including a heat exchanger core and an auxiliary element such as for example, a receiver drier bottle encapsulated by a housing; -
FIGURE 1b illustrates schematic representation of a prior art heat exchanger assembly including only a heat exchanger core encapsulated by a housing; -
FIGURE 2 illustrates a schematic representation of the prior art heat exchanger assembly ofFIGURE 1a and FIGURE 1b , wherein the heat exchanger core is housed within the housing and the housing in turn is mounted on a vehicle body or frame via mounting elements and rubber dampers; -
FIGURE 3a illustrates a schematic representation of a heat exchanger assembly in accordance with an embodiment of the present invention, wherein a heat exchanger core is housed within a housing and a resilient material fills at least part of the space between the housing and the heat exchanger core so as to surround the heat exchanger core from all sides except top side; and -
FIGURE 3b illustrates schematic representation of a heat exchanger assembly in accordance with another embodiment, wherein resilient material surrounds the heat exchanger core from all sides; and -
FIGURE 3c illustrates schematic representation of a heat exchanger assembly ofFIGURE 3a , wherein resilient material acting as rubber dampers is disposed between the housing and the heat exchanger core. - It must be noted that the figures disclose the invention in a detailed enough way to be implemented, said figures helping to better define the invention if needs be. The invention should however not be limited to the embodiment disclosed in the description.
- Referring to
FIGURE 1a , isometric view of a prior artheat exchanger assembly 10 that includes ahousing 1 enclosing aheat exchanger core 2 and an auxiliary element such as for example, areceiver drier bottle 3 is illustrated. In theFigure 1a , theheat exchanger core 2 and thereceiver drier bottle 3 are depicted with broken lines, while thehousing 1 is depicted with solid lines. Theheat exchanger core 2 often vibrates during operation - in case of condensers, this may be due to operation of a compressor also attached in the AC loop. In this example, a condenser is housed inside ahousing 1 that in turn is mounted on a vehicle body or frame (not illustrated inFIGURE 1a ) viamounting elements 4 and a plurality of rubber dampers (rubber dumpers not illustrated in these drawings). Themounting elements 4 may be for example flanges extending from thehousing 1 for facilitating mounting of thehousing 1. Referring toFIGURE 1b , schematic representation of another prior artheat exchanger assembly 20 including only aheat exchanger core 12 encapsulated by ahousing 11 is depicted. In theFigure 1b , theheat exchanger core 12 is depicted with broken lines, while thehousing 11 is depicted with solid lines. Thehousing 11 in turn is mounted on a vehicle body or frame (not illustrated inFIGURE 1b ) viamounting elements 14 and a plurality of rubber dampers (not illustrated in theFIGURE 1b ). -
FIGURE 2 illustrates schematic representation of the prior artheat exchanger assembly heat exchanger core FIGURE 1b or along with thereceiver drier 3 as illustrated inFIGURE 1a is housed within thehousing housing FIGURE 2 ), viamounting elements 4, 14 (not illustrated inFIGURE 2 ) configured on thehousing rubber dampers 5 disposed between thehousing rubber dampers 5 between thehousing heat exchanger core interior walls housing heat exchanger core housing rubber dampers 5. Further, therubber dampers 5 also require additional elements such as compression limiters for preventing excessive deformation of therubber dampers 5. - Referring to
Figure 3a , it depicts schematic representation of aheat exchanger assembly 100 for an air conditioning system of a vehicle in accordance with an embodiment of the present invention, wherein ahousing 110 encloses aheat exchanger core 120, such thatinterior walls 112 of thehousing 110 are spaced from correspondingexterior walls 122 of theheat exchanger core 120. Aresilient material 130, for example, rubber foam fills at least part of the space between thehousing 110 and theheat exchanger core 120 as illustrated inFIGURE 3a and constitutes exclusive connection between thehousing 110 and theheat exchanger core 120. Thanks to such arrangement, it dampens and preventsheat exchanger core 120 vibrations from reaching thehousing 110, thereby mitigating to a substantial degree the noise which might be produced. Theresilient material 130 can fill all of the space between thehousing 110 and theheat exchanger core 120 as illustrated inFIGURE 3b . Further, the elements mounted on the vehicle body and inside vehicle cabin are protected against vibrations from theheat exchanger core 120 and service life thereof is increased. Also, thehousing 110 protects theheat exchanger core 120 against damage from impacts and unfavorable environment conditions such as corrosion, dust, moisture and stone impact. This may be also the case for other components of the heat exchanger assembly, which might be located within the housing and be encapsulated in the resilient material.FIGURE 3c illustrates schematic representation of theheat exchanger assembly resilient material 130 acting as rubber dampers is disposed between thehousing 110 and theheat exchanger core 120. The configuration and placement of theresilient material 130 between thehousing 110 and theheat exchanger core 120 is based on vibration isolation requirements at different regions between thehousing 110 and theheat exchanger core 120 of theheat exchanger assembly 100. Further, the heat exchanger assembly is simple in construction. Still further, the heat exchanger assembly can be conveniently retrofitted on existing air conditioning systems by carrying out minor modifications. - Several variations are possible in relation with configuration of the
resilient material 130 with respect to theheat exchanger core 120, for example, in a first embodiment as illustrated inFIGURE 3a , theresilient material 130 surrounds theheat exchanger core 120 from all sides except one side, for example,resilient material 130 surrounds all sides of theheat exchanger core 120 except the top of theheat exchanger core 120. Particularly, the space between at least oneexterior wall 122 of theheat exchanger core 120 and correspondinginterior walls 112 of thehousing 110 is unfilled. In case of the first embodiment, the space between the top wall and the core is not filled, due to gravity. In a second embodiment as illustrated inFIGURE 3b , theresilient material 130 surrounds theheat exchanger core 120 from all sides. Depending on the nature of vibration which are foreseen in specific applications, the material may be absent on other sides. - The
housing 110 usually includes mounting means, such as for example a plurality of flanges with holes configured thereon, such that holes configured on the flanges of thehousing 110 match with corresponding holes configured on either one of main body and flanges extending from the main body for facilitating secure mounting of thehousing 110 on the main body by using fasteners. With such configuration of theresilient material 130 between theheat exchanger core 120 and thehousing 110, the need for rubber dampers and compression limiters disposed between the housing and the vehicle body is eliminated. - The
housing 110 can be of plastic material. The resilient material can be any foam that exhibits stiffness in the range of 5-500 N/mm. Theresilient material 130 can be for example, Ethylene Propylene Diene Monomer (EPDM) foam of closed or semi closed structure or different kind of rubber foam. Further, theresilient material 130 can be for example, polyurethane foam. The heat exchanger core is for example condenser. - The heat exchanger can further comprise further auxiliary elements, like a receiver drier bottle. In such case, the auxiliary elements are also connected to the housing exclusively through the
resilient material 130, analogously to the relation between theheat exchanger core 120 and thehousing 110. - Although, the
heat exchanger assembly 100 in accordance with the present invention is used for achieving vibration and thermal isolation of elements such as condensers, chillers used in vehicle air conditioning applications, however, theheat exchanger assembly 100 can also be used for vibration isolation of variety of elements used presently or developed in future for use in air conditioning applications and other applications. - In any case, the invention cannot and should not be limited to the embodiments specifically described in this document, as other embodiments might exist. The invention shall spread to any equivalent means and any technically operating combination of means within the scope of the appended claims.
Claims (10)
- A heat exchanger assembly (100) comprising a heat exchanger core (120) and a housing (110) with walls (112) adapted to enclose the heat exchanger core (120),wherein the walls (112) of said housing (110) are spaced from the heat exchanger core (120);characterised in that the created space is filled at least partly by a resilient material (130) so that the resilient material (130) constitutes an exclusive connection between the housing (110) and the heat exchanger core (120).
- A heat exchanger assembly (100) according to claim 1, wherein the resilient material (130) fills the whole space between the housing (110) and the heat exchanger core (120).
- The heat exchanger assembly (100) according to any preceding claims, wherein the housing (110) is of plastic material.
- The heat exchanger assembly (100) according to any preceding claims, wherein the resilient material (130) is foam.
- The heat exchanger assembly (100) according to any preceding claims, wherein the resilient material (130) is rubber.
- The heat exchanger assembly (100) according to claim 4, wherein the resilient material (130) is polyurethane foam.
- The heat exchanger assembly (100) according to claim 4, wherein the resilient material (130) is Ethylene Propylene Diene Monomer (EPDM) foam.
- The heat exchanger assembly (100) according to any preceding claims, wherein the resilient material (130) has stiffness in the range of 5-500 N/mm.
- The heat exchanger assembly (100) according to any preceding claims, wherein the heat exchanger core is a condenser.
- The heat exchanger assembly (100) according to any preceding claims, wherein it further comprises auxiliary elements, which are located inside the housing (110) and connected with it exclusively through the resilient material (130).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP18461554.0A EP3561433B1 (en) | 2018-04-27 | 2018-04-27 | Heat exchanger assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP18461554.0A EP3561433B1 (en) | 2018-04-27 | 2018-04-27 | Heat exchanger assembly |
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EP3561433A1 EP3561433A1 (en) | 2019-10-30 |
EP3561433B1 true EP3561433B1 (en) | 2021-12-15 |
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EP18461554.0A Active EP3561433B1 (en) | 2018-04-27 | 2018-04-27 | Heat exchanger assembly |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2846121A1 (en) * | 2013-09-10 | 2015-03-11 | GEA Ecoflex GmbH | High pressure plate heat exchanger |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2948123A1 (en) * | 1979-11-29 | 1981-06-04 | Linde Ag, 6200 Wiesbaden | Plate stack heat exchanger with jacket - has intermediate spaces between plates filled with pressurisable packing material |
JP5974282B2 (en) * | 2011-12-06 | 2016-08-23 | パナソニックIpマネジメント株式会社 | refrigerator |
JP6548522B2 (en) * | 2015-08-31 | 2019-07-24 | カルソニックカンセイ株式会社 | Method of manufacturing adsorber |
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2018
- 2018-04-27 EP EP18461554.0A patent/EP3561433B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2846121A1 (en) * | 2013-09-10 | 2015-03-11 | GEA Ecoflex GmbH | High pressure plate heat exchanger |
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Publication number | Publication date |
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EP3561433A1 (en) | 2019-10-30 |
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