WO2023135213A1 - Support de circuit de fluide diélectrique et ensemble de régulation thermique correspondant, notamment pour véhicule automobile - Google Patents
Support de circuit de fluide diélectrique et ensemble de régulation thermique correspondant, notamment pour véhicule automobile Download PDFInfo
- Publication number
- WO2023135213A1 WO2023135213A1 PCT/EP2023/050647 EP2023050647W WO2023135213A1 WO 2023135213 A1 WO2023135213 A1 WO 2023135213A1 EP 2023050647 W EP2023050647 W EP 2023050647W WO 2023135213 A1 WO2023135213 A1 WO 2023135213A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support
- dielectric fluid
- nozzles
- housing
- cover
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 166
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 description 12
- 239000012071 phase Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 210000000352 storage cell Anatomy 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 239000013536 elastomeric material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/005—Other direct-contact heat-exchange apparatus one heat-exchange medium being a solid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20236—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures by immersion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20872—Liquid coolant without phase change
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
Definitions
- Dielectric fluid circuit support and corresponding thermal regulation assembly in particular for a motor vehicle
- the present invention relates to a dielectric fluid circuit support for a thermal control assembly, particularly in the automotive field.
- a thermal control assembly comprises a plurality of electrical and/or electronic components capable of releasing heat during their operation.
- the dielectric fluid circuit support comprises a predefined number of nozzles allowing thermal regulation of these components by spraying dielectric fluid.
- the components likely to be affected by the present invention may be electrical energy storage elements, in particular battery elements, or power electronics, for example, without limitation, semiconductors, such as as diodes or transistors. It could also be computer server components.
- the invention finds an advantageous application in the field of thermal regulation of a power electronics device or module, that is to say comprising power electronic components.
- a power electronics device or module that is to say comprising power electronic components.
- the temperature of such a device or power electronics module may rise, which risks damaging some of the power electronics components.
- the invention also finds an advantageous application in the field of thermal regulation of an electrical energy storage device, such as a set of batteries or battery pack for a motor vehicle with electric and/or hybrid motorization.
- the electrical energy of vehicles with electric and/or hybrid motorization is supplied by one or more batteries.
- the electrical energy storage elements such as the batteries are caused to heat up and thus risk being damaged.
- a charging technique called fast charging, consists in charging the energy storage elements under a high voltage and a high amperage, in a short time, in particular in a maximum time of about twenty minutes. This fast charging involves significant heating of the electrical energy storage elements that need to be treated.
- thermal regulation device in particular for cooling components, for example for storing electrical energy, such as batteries.
- a thermal regulation device makes it possible to modify a temperature of an electrical energy storage device, for example when starting the vehicle in cold weather, by increasing its temperature for example, or whether it is being driven or during a recharging operation of said system, by reducing the temperature of the battery elements, which tend to heat up during their use.
- the thermal regulation device comprises a cold plate inside which a cooling fluid circulates, and arranged in contact with the components to be cooled. It has been found that such an arrangement can lead to non-homogeneous cooling of the components of the same device, for example of electrical energy storage, to be cooled, then resulting in a decrease in overall performance.
- a thermal regulation device also has a high thermal resistance due to the thicknesses of material present between the cooling fluid and the components to be cooled.
- this solution generally has a large bulk.
- a dielectric fluid is sprayed directly onto the components received in a housing, by means of a fluid circuit dielectric and orifices or nozzles for spraying the dielectric fluid. A heat exchange can then take place between the components and the dielectric fluid which comes into direct contact with a surface of the components.
- a constant problem concerns the integration of the dielectric fluid circuit and the spray nozzles in order to be able to spray dielectric fluid on the components, received in the housing, in an effective manner.
- a plurality of conduits are provided to allow the circulation of the dielectric fluid inside the casing, passing in particular through the walls of the casing to allow the entry and exit of the dielectric fluid into the housing.
- the assembly can be complicated because of this multiplicity of pipes that must be fixed in relation to the walls of the box so that they do not come not in contact with electrical or electronic components before the fluid is projected.
- the invention falls within this context and aims to offer an alternative to known thermal regulation assemblies, in particular in their application to an electrical storage device such as motor vehicle batteries, which allows among other things to overcome the aforementioned problems.
- the subject of the invention is a dielectric fluid circuit support for a thermal regulation assembly, said assembly comprising a housing formed by a container open on at least one side defining a housing and intended to be closed by a cover, the housing being configured to receive at least one electronic and/or electrical component intended to be thermally regulated.
- the support comprises a predefined number of nozzles for spraying a dielectric fluid.
- the support defines at least one dielectric fluid circulation line configured to supply dielectric fluid to the spray nozzles.
- the support is configured to be arranged and held in the housing between said at least one component and the cover.
- such a support can be added, easily integrated into different types of housings, in particular battery packs. It can be completely independent of the case, which does not require any modification, for example of the battery pack. It can also be independent of the open container receiving the components to be thermally regulated and be integrated into the lid, which minimizes modifications to the battery pack, for example.
- the dielectric fluid circuit support may also comprise one or more of the following features described below, taken separately or in combination.
- the support can define several conduits for the circulation of the dielectric fluid, for example parallel.
- the spray nozzles can be made in one piece with the support.
- the nozzles can be attached and fixed to the support, for example by clipping or screwing, in particular at the connection points.
- At least some nozzles can be arranged to allow for example a tangential spraying of dielectric fluid on the component or components to be thermally regulated.
- At least some nozzles can be arranged to allow dielectric fluid to be sprayed directly onto the component or components to be thermally regulated or alternatively towards the cover.
- the support may have the general shape of a frame.
- the frame is shaped to correspond at least to the periphery or peripheral edge of the lid and/or container defining the housing of said at least one electronic and/or electrical component.
- At least some spray nozzles can be arranged on a longitudinal and/or lateral edge of the frame.
- the support may comprise at least one crosspiece connecting two opposite edges of the frame.
- Said at least one crosspiece may define said at least one dielectric fluid circulation line.
- At least one spray nozzle can be arranged on said at least one crosspiece.
- At least two spray nozzles can be arranged on either side of a common crosspiece.
- the support may comprise at least one holding or fixing element to hold the crosspiece in the housing.
- the support may comprise at least one fixing element in the housing.
- the support may comprise at least one sealing element.
- the support may comprise at least one element with the dual function of sealing and fixing the support in the housing.
- the support may comprise at least one peripheral sealing lip arranged along the support.
- the sealing lip can be configured to be arranged between the lid and the container.
- the sealing element such as the peripheral lip can be made of an elastomeric material.
- the support may comprise at least a first part and a second part, assembled together.
- the assembly of the first part and the second part can be done by overmoulding.
- the first and second parts can define between them said at least one pipe.
- At least one of the first and second parts may have a predefined number of connection points for the spray nozzles.
- the connection points are in fluid communication with said at least one pipe.
- At least one of the first and second parts may have orifices forming the connection points configured to receive the spray nozzles. These orifices open into the or at least one pipe. Alternatively, the nozzles can be molded into said part
- the support is produced independently of the housing intended to receive the support.
- the support can be independent of the lid.
- the support can be independent of the open container.
- the support may comprise at least one element for fixing to the housing.
- the fixing can be done directly on the lid and/or on the container closed by the lid.
- attachment may be to a rib extending from the lid or a wall of the container. This rib is for example integral with the lid or the wall of the container.
- the fixing element can be configured for fixing by pinching or wedging, by clipping, by screwing, by cooperating with a complementary fixing element on the housing, or for any other type of fixing.
- the element or at least one fixing element can be arranged along a peripheral edge of the support, for example in the form of a frame, or even all around the frame.
- the support may comprise at least one additional member, chosen from at least one suction pump, at least one heat exchanger, at least one filter, at least one sensor.
- the support may include an accessory zone configured for the fluidic connection of said at least one pipe with F at least one additional member.
- the heat exchanger is for example a cooler in which a refrigerant fluid is intended to circulate, so as to allow cooling of the dielectric fluid by heat exchange with the refrigerant fluid.
- the heat exchanger can be a radiator.
- the or at least one sensor can be a pressure sensor.
- the or at least one sensor can be a temperature sensor.
- the accessory zone also allows the mechanical connection of the additional member(s).
- the accessory zone may comprise: at least one channel fluidly connected to a dielectric fluid outlet of said pump and to a dielectric fluid inlet of said heat exchanger, so as to allow cooling of the dielectric fluid, and/or at least a channel fluidly connected to a dielectric fluid outlet of said pump or of said heat exchanger and opening onto said filter, so as to filter the dielectric fluid, and/or at least one channel provided at the outlet of the filter or of said heat exchanger or of the suction pump, and fluidly connected to said at least one pipe.
- the support is made in one piece with the lid.
- the support can be integrated into the cover by overmoulding.
- the support can be at least partially, or even completely, embedded in the material forming the cover.
- the spray nozzles may respectively comprise at least one spray orifice arranged so as to spray at least one jet of dielectric fluid in the direction of said at least one component and/or in the direction of the cover, in the assembled state of the bracket in the box.
- At least one nozzle may comprise several orifices arranged so as to respectively project at least one jet of dielectric fluid in the direction of different surfaces of said component and/or of the cover.
- At least one nozzle comprises: at least one first spray orifice configured to be arranged opposite a spacing between at least two adjacent components, so as to spray a first jet of dielectric fluid between the two adjacent components, and at least one second spray orifice configured to be arranged so as to spray a second jet of dielectric fluid towards a surface of said at least one component facing the cover.
- the support can be made of a composite plastic material, advantageously heat-resistant.
- the support when it is independent of the casing, can be at least partially metallic.
- the invention also relates to a thermal regulation assembly.
- This assembly may be intended to equip a vehicle, in particular an automobile.
- the thermal regulation assembly comprises a housing formed by a container open on at least one side defining a housing and intended to be closed by a lid, the housing receiving at least one electronic and/or electrical component intended to be regulated thermally.
- the housing incorporates at least one dielectric fluid circuit support as described above.
- At least one additional device for operating the dielectric fluid circuit and the spray nozzles such as at least one suction pump, at least one heat exchanger, such as a cooler, and at least a filter, can be received inside the casing, for example at the level of an accessory zone of the support.
- the thermal regulation assembly may comprise at least one sealing element arranged between the cover and the peripheral edge facing the container receiving said at least one component.
- the invention may also relate to a battery pack forming a thermal regulation assembly as defined above.
- a battery pack comprises a plurality of energy storage cells and at least one dielectric fluid circuit support integrated into the battery pack and comprising a predefined number of dielectric fluid spray nozzles arranged so as to spray the plurality of energy storage cells.
- FIG. 1 is an exploded view of a thermal regulation assembly comprising components to be thermally regulated and a dielectric fluid circuit support for the thermal regulation of the components according to a first embodiment.
- FIG. 2 is a partial perspective view of the dielectric fluid circuit carrier of Figure 1.
- FIG. 3 shows an enlarged view of a portion of the dielectric fluid circuit carrier of Figure 1.
- FIG. 4 is a sectional view of a portion of the assembly of Figure 1 after assembly.
- FIG. 5 schematically shows a thermal regulation assembly comprising a dielectric fluid circuit support integrated in a cover arranged facing the components to be thermally regulated according to a second embodiment.
- FIG. 6 is a top view and in section of the assembly of figure 5.
- FIG. 7 shows an enlarged view of a portion of the dielectric fluid circuit support according to an exemplary embodiment with two assembled parts defining a dielectric fluid circulation line.
- FIG. 8 schematically illustrates a particular embodiment of a multi-jet nozzle.
- certain elements can be indexed, for example first element or second element. In this case, it is a simple indexing to differentiate and name elements that are close but not identical. This indexing does not imply a priority of one element over another and such denominations can easily be interchanged without departing from the scope of the present invention. Nor does this indexing imply an order in time.
- the invention relates to a thermal regulation assembly 1 which may be intended to equip a vehicle, in particular a motor vehicle.
- a first embodiment is shown schematically in Figures 1 to 4.
- a second embodiment is shown schematically in Figures 5 and 6.
- the thermal regulation assembly 1 may comprise a casing 5, for example of generally parallelepipedal shape.
- this box 5 can comprise a tray or container 52 open on at least one side and a cover 53 which closes the box 5 when it is assembled to the container 52.
- at least one element of sealing can be arranged between the lid 53 and a peripheral edge facing the container 52.
- the sealing element can be made of an elastomeric material.
- the thermal regulation assembly 1 comprises one or more electrical or electronic components whose temperature must be regulated, for example reduced. More specifically, the thermal regulation assembly 1 can comprise one or more modules 7, in particular for electrical storage, comprising the electronic and/or electrical component(s).
- the thermal regulation assembly 1 can be a battery pack comprising a plurality of modules 7, such as energy storage modules or cells, the temperature of which is regulated by the device thermal regulation 3.
- a module 7 can be an energy storage cell.
- a module 7 can comprise several energy storage cells.
- a module 7 can further be defined as a container or casing comprising one or more electronic and/or electrical components. Module 7 can be closed. It may be a group of cells, for example in an element forming a lid or cover on an upper part of the thermal regulation assembly 1 or of a battery pack.
- the components or modules 7 are shown schematically with a generally parallelepipedal shape.
- This parallelepipedal shape has a length, a width and a height.
- any other shape can be envisaged.
- the modules 7 have respectively an upper face 71 and a lower face 72 opposite connected by side faces 73, 75.
- the housing 5 is intended to receive the component or components or modules 7.
- the container 52 has an internal volume defining a housing within which the components or modules 7 can be arranged.
- the components or modules 7 can be arranged in one row or in several rows. These rows are advantageously arranged parallel to each other.
- the upper face 71 of at least one component or module 7 may be intended to be arranged facing the lid 53.
- the lower face 72 may be intended to be arranged against a bottom wall 55 of the container 52.
- the opposite upper 71 and lower 72 faces extend in the direction of the length and the width of a component or module 7.
- Two first side faces 73 are for example two large side faces opposite, extending in the direction of the length and the height of the component or module 7.
- Two second side faces 75 are for example two small opposite side faces, extending in the direction of the width and the height of the component or module 7.
- the temperature of the component or components or modules 7 is intended to be thermally regulated by spraying dielectric fluid on one or more surfaces.
- the surface(s) of a module 7 intended to be sprayed with the dielectric fluid can be flat or substantially flat.
- a surface intended to be sprayed may be curved or convex, with its convexity oriented towards the outside of the component or module 7.
- the curvature of this surface to be sprayed makes it possible to facilitate flow of the dielectric fluid towards the surfaces side faces, which extend vertically with reference to the orientation of the example of Figure 1 or Figure 5. It is also possible that the surface intended to be watered is inclined with respect to a horizontal or vertical plane with reference to the orientation of the thermal regulation assembly 1 after final assembly.
- the thermal regulation assembly 1 further comprises at least one dielectric fluid circuit circuit support 9, 9′, hereinafter referred to as support 9, 9′.
- the support 9, 9' can be arranged and held in the casing 5 between the component or components or modules 7 and the cover 53.
- the support 9, 9 ' is interposed between the components or modules 7 received in the container 52 and the lid 53 or a wall of the lid 53.
- Such a support 9, 9' integrates a dielectric fluid circuit and comprises a predefined number of nozzles 11 for spraying dielectric fluid, so as to allow thermal regulation of the component or components or modules 7.
- the support 9, 9' and the elements it comprises are described in more detail below.
- the flow of the dielectric fluid in the support 9, 9' can be controlled by means of at least one member for circulating the dielectric fluid, such as a pump.
- a dielectric fluid storage tank can also be provided.
- There circulation of the dielectric fluid is schematized by the arrows F1 (FIGS. 2, 3), F10 (FIGS. 5, 6).
- the dielectric fluid can be single-phase or two-phase.
- the latter is for example chosen according to its phase change temperatures.
- the dielectric fluid can be sucked up again by a pump for example.
- the dielectric fluid can optionally be driven towards an exchanger (not shown) to cool it for example, before being reintroduced into the support 9, 9' for the thermal regulation of the components or modules 7.
- the thermal regulation assembly 1 may also comprise one or more elements or organs necessary for the operation of the dielectric fluid circuit. These elements or organs can be received inside the box 5, for example by being integrated into the support 9', in particular at the level of an accessory zone of the support 9'.
- it may be, for example, at least one element among at least one suction pump 60, one filter 62, at least one heat exchanger 64.
- Such elements are represented in the example shown in Figures 1 to 3.
- the suction pump 60 makes it possible to suck up the dielectric fluid, for example contained in a reservoir, and to direct it into the dielectric fluid circuit defined by the support 9, 9'.
- the filter 62 can be a particle filter, in particular less than 5 pm.
- the filter 62 can filter metallic particles for example.
- the filter 62 can for example comprise a desiccant making it possible to absorb humidity which can prove to be harmful for certain dielectric fluids and risk altering their dielectric properties.
- the heat exchanger 64 can be a cooler, also known as the "chiller" in English, within which an exchange is intended to take place. between a coolant fluid and the dielectric fluid intended to flow within the dielectric fluid circuit.
- heat exchanger 64 or another heat exchanger could be a radiator.
- the thermal regulation assembly 1 may have at least one spray zone ZA of dielectric fluid and at least one recovery zone ZB of the dielectric fluid after spraying , in particular before being evacuated from set 1.
- the spray zone ZA and the recovery zone ZB are in particular provided on either side of the components or modules 7 to be thermally regulated.
- the spray zone ZA can be defined in a first region of the casing 5 and the recovery zone ZB can be defined in a second region of the casing 5. These two regions are for example opposite.
- the first region is an upper or upper region of the casing 5
- the second region is a lower or lower region of the casing 5.
- the terms upper and lower are defined with respect to a vertical axis V of the assembly 1 of thermal regulation.
- the thermal regulation assembly 1 may optionally comprise, in particular in the recovery zone ZB, at least one dielectric fluid collector 16, as described below with reference to FIG. 5. This may be envisaged in particular when the dielectric fluid used for thermal regulation is a single-phase dielectric fluid.
- the invention relates more particularly to the support 9, 9', described in more detail below, with reference to Figures 1 to 7.
- the support 9, 9' is intended to be held, fixed in the casing 5.
- This can be achieved by means of at least one holding or mechanical fixing element.
- the fixing element can be configured for fixing by pinching or wedging, by clipping, by screwing, by cooperating with a complementary fixing element on the housing, or for any other type of fixing.
- the element or at least one fixing element can be arranged along the support 9, 9'.
- the fixing can be done directly on the cover 53 and/or the container 52.
- the fixing could be done on a rib extending from the cover 53 for example or possibly from a wall of the container 52. This rib is for example integral with the lid or possibly the wall of the container.
- the support can be obtained by overmoulding the support 9, 9′ to an element of the box 5, for example to the cover 53.
- the support 9, 9' may further comprise at least one sealing element, for example made of elastomeric material.
- the sealing element or at least one element can be arranged along the support 9, 9'.
- a sealing element can for example be fixed to the support 9, 9′, and be intended to be arranged between the lid 53 and a peripheral edge facing the container 52.
- the sealing element could be intended to be arranged and held between the support 9, 9' and an element of the box 5 such as a peripheral edge of the container 52.
- H could also be considered a sealing element separate from the support 9, 9 ', and intended to be arranged and maintained between the lid 53 and the container 52.
- the support 9, 9′ may include at least one element with the dual function of sealing and fixing the support in the housing.
- the support 9 or 9′ may optionally have the general shape of a frame, as shown in the example of FIG. 1.
- the frame is shaped to correspond at least to the periphery or peripheral edge of the cover 53 and/or of the container 52.
- the frame defines a rectangular shape, the peripheral outline of which can go around all the components or modules. 7 received in contant 52.
- the frame has two borders opposite longitudinal 90 connected by two opposite side edges 92. At least one crosspiece 94 can connect two opposite edges 90, 92 of the frame.
- This form of frame can make it possible in particular to form a network of nozzles 11 which can be arranged facing the entire circumference of all the components or modules 7, of the battery pack for example.
- the possible fixing and/or sealing element can, in this particular example, be arranged along at least one peripheral edge of the support 9, 9', in the form of a frame, or even all around such a framework.
- the support 9, 9′ may optionally comprise at least one holding or fixing element for holding the crosspiece 94 in the casing 5.
- the crosspiece 94 can for example be fixed to a rib (not shown) extending from a wall of the lid 53, for example by being made in one piece, and in the direction of the support 9, 9'. In a non-limiting way, this can be done for example by clipping.
- this support 9, 9′ defines at least one conduit 13 for the circulation of the dielectric fluid configured to supply the nozzles 11 with dielectric fluid.
- a conduit forms a supply conduit 13.
- Such a pipe 13 can be defined at least in part or even all along the support 9, 9'.
- one or more pipes 13 can be defined by at least one border, this can be a lateral border 92 and/or a longitudinal border 90, and/or by a crosspiece 94.
- the support 9, 9' can define several pipes 13. At least some of these pipes 13 or even all the pipes 13 can extend in parallel.
- a pipe 13 can fluidically connect several nozzles 11. In other words, it is shaped to direct the dielectric fluid towards each of the nozzles 11.
- several pipes 13 can each make it possible to distribute the dielectric fluid to a series of nozzles 11 respectively.
- a single pipe 13 can be provided to supply all the nozzles 11 in series.
- the support 9, 9', and more precisely the or at least one of the pipes 13, can have one or more distribution or connection points 14 for the nozzles 11 (cf. figures 2, 5, 7) .
- a single nozzle 11 can be connected to a distribution point or connection 14.
- at least two nozzles 11 can be connected to a distribution point or connection 14 common.
- the support 9, 9 ' may include at least a first part or upper part 9A and a second part or lower part 9B, which are assembled together.
- One or both parts 9A, 9B can be molded.
- the material used for the molding of at least one of the two parts 9A, 9B can be chosen so as to be compatible with a sealing function.
- At least one or both parts 9A, 9B can be made of a plastic material, preferably of composite plastic.
- the two parts 9A, 9B can optionally be assembled by clipping, overmolding, gluing or even by ultrasonic welding.
- the two parts 9A, 9B when they are assembled make it possible to define between them at least one pipe 13.
- the pipe 13 is produced by assembling these two parts 9A, 9B.
- connection points 14 of the spray nozzles 11 are in fluid communication with the or at least one pipe 13.
- the part such as the lower part 9B can have orifices forming the connection points 14 configured to receive the nozzles 11. These orifices open into the or at least one pipe 13.
- the pipe 13 or at least one of the pipes 13 can be arranged so as to extend at least in part facing, in particular above, a row of components or modules 7.
- the pipe 13 or at least one of the pipes 13 can be arranged opposite a spacing between two adjacent components or modules 7 or between two adjacent rows.
- Driving 13 or at least one of the pipes 13 may also be intended to be arranged so as to extend facing a spacing in the middle or substantially in the middle of one or more components or modules 7, or even facing longitudinal edges or side components or modules 7, or edges in the case of modules 7 parallelepipedic.
- their number can be defined according to the flow rate of the dielectric fluid, the length of the dielectric fluid circuit.
- the nozzles 11 are intended to be arranged in such a way as to directly or indirectly spray dielectric fluid at least one surface of at least one component or module 7.
- One or more nozzles 11 may be intended to be arranged opposite a spacing between two adjacent components or modules 7, and in particular above a spacing between the upper faces 71 of two adjacent components or modules 7. At least one such nozzle 11 can be arranged, at the level of an inter-module spacing out of two, for example, or at the level of each inter-module spacing.
- the nozzles 11 can be arranged centrally or substantially centrally with respect to the adjacent components or modules 7.
- the dimensions of the nozzles 11, and in particular their height, can be adapted, for example according to the interior space of the box 5, in particular between the components or modules 7 and the cover 53.
- At least one series of nozzles 11 can be associated with each row. It is also possible to arrange one or more nozzles 11, opposite a spacing between two rows of components or modules 7.
- nozzles 11 it is also possible to arrange one or more nozzles 11, so as to project at least one jet of dielectric fluid at least partially onto a wall of the housing 5 forming a deflector. It may be, for example, the cover 53.
- the nozzles 11 can also be staggered so as to spray at least one surface of one or more components or modules 7.
- the nozzles 11 each include one or more dielectric fluid projection orifices.
- the projection orifices can optionally be made by projection slots.
- the projection orifices may have a generally ovoid shape or outline.
- the projection orifices may have a generally circular shape or outline.
- One or more nozzles 11 are in particular shaped so as to project at least one jet of dielectric fluid F2 (FIG. 2), F20 (FIGS. 5, 6).
- Such a jet of dielectric fluid F2; F20 may have a generally conical shape.
- At least one nozzle 11 is in particular shaped so as to project at least one fan-shaped jet of dielectric fluid.
- a jet has a generally planar shape or else a flattened cone. It defines for example an opening angle greater than 90°, in particular between 100° and 180°, preferably of the order of 170°. This angle can be adapted so as to uniformly cover an entire surface to be sprayed with at least one component or module 7.
- At least some nozzles 11 may have a single spray orifice, so as to spray a single jet of dielectric fluid F2; F20.
- At least some nozzles 11 may have at least two spray orifices, so as to spray at least two jets of dielectric fluid F2; F20.
- Such multi-orifice nozzles 11 are also called multi-jet nozzles 11.
- Ees different jets of dielectric fluid F2; F20 intended to be projected by a multi-jet nozzle 11 may or may not be similar. They may or may not be the same size. At least some jets of dielectric fluid, for example of generally planar shape, can be projected with the same opening angle or with different opening angles. At least some jets, for example of generally flat shape, can be projected along parallel planes or along secant planes. At least some jets of dielectric fluid, for example of generally conical shape, may have different diameters. At least some jets may be intended to spray the same surface of a component or module 7 or, on the contrary, different surfaces, in particular of one or more components or modules 7.
- At least some nozzles 11 can be oriented so as to project at least one jet of dielectric fluid F2; F20 in the direction of a surface, called the upper surface, of a component or module 7 opposite the cover 73, in the assembled state of the support 9, 9' in the housing 5.
- such nozzles 11 can be arranged so that their orifice or at least one of the projection orifices is arranged facing the surface of one or more components or modules 7 to be sprayed.
- the spraying of dielectric fluid can be done in particular vertically in the direction of the component(s) or modules 7.
- At least some nozzles 11 can be arranged to allow dielectric fluid to be sprayed tangentially or substantially to the upper surfaces 71 of the components or modules 7.
- At least some nozzles 11 can be oriented so as to project at least one jet of dielectric fluid F2 in the direction of cover 53, in the assembled state of support 9' in housing 5.
- the support 9' is produced independently of the cover 53.
- the latter makes it possible to deflect the jet of dielectric fluid in the direction of the upper surface of at least one component or module 7 facing the cover.
- such nozzles 11 are arranged so that their orifice or at least one of the projection orifices is arranged opposite the cover 53, towards which the initial jet of dielectric fluid must be projected.
- the initial jet of dielectric fluid can be projected vertically in the direction of cover 53.
- At least one so-called multi-jet nozzle 11 may comprise several orifices arranged so as to respectively project a jet of dielectric fluid in the direction of different surfaces.
- H may be different surfaces of several elements, for example of several components or modules 7, or at least one component or module 7 and the cover 53.
- the different jets of dielectric fluid can be of different size, scope, dimension, angles. This can apply just as well for conical jets of dielectric fluid, for example, as for jets of dielectric fluid with the general shape of a fan.
- At least one multi-jet nozzle 11 comprises at least one first projection orifice 17A and at least one second orifice 17B.
- the first orifice 17A and the second projection orifice 17B can be provided at different levels of the nozzle 11.
- the first orifice 17A is for example farther from the support 9, 9' and intended to be closer to the components or modules 7.
- the second orifice 17B can be closer to the support 9, 9' and intended to be farther from the components or modules 7.
- the nozzle 11 is arranged opposite a spacing between two adjacent components or modules 7.
- the first orifice 17A of this nozzle 11 is for example intended to be arranged opposite this spacing between the two adjacent components or modules 7.
- the first orifice 17A can be configured to project a first jet of dielectric fluid FA between the two adjacent components or modules 7.
- the projected dielectric fluid is intended to flow along the side faces 73 facing the two adjacent modules 7.
- the second orifice 17B is for example intended to be arranged or directed so as to project a second jet of dielectric fluid FB towards an upper surface of one or more, here two, adjacent components or modules 7.
- the first orifice 17A and the second orifice 17B can be shaped so that the second jet of dielectric fluid FB is larger, for example of larger diameter, than the first jet of dielectric fluid FA.
- nozzles 11 can be arranged, for example mirror-like, so as to project jets of complementary dielectric fluid so as to optimize the spraying of at least one surface of one or more components or modules 7.
- nozzles 11 when there is a multiplicity of nozzles 11, they may be identical or different, have the same number of spray orifices or not, have spray orifices with the same opening area or not, for example of the same diameter or not.
- the nozzles 11 can be arranged in the same orientation or substantially identical, or mirrored, or according to variable orientations, with respect to the components or modules 7 or to a pipe 13.
- nozzles 11 or even all of the nozzles 11 can be intended to be supplied in series by a common pipe 13. Alternatively, the supply of at least some nozzles 11 can be done by bypass pipes.
- nozzles 11 can be sufficiently close together so as to obtain a covering of the jets of dielectric fluid F20 intended to be projected (as represented in the example in Figure 6).
- a covering of the jets of dielectric fluid F20 intended to be projected (as represented in the example in Figure 6).
- such an overlap may be at least 20%. This makes it possible to optimize the watering of the components or modules 7 to be thermally regulated.
- At least one nozzle 11 can be arranged at the level of at least one side edge 92, and /or at least one longitudinal edge 90 and/or at least one crosspiece 94.
- the nozzle(s) 11 arranged on a crosspiece 94 can thus be arranged as close as possible to the components or modules 7.
- At least two nozzles 11 can be arranged on either side of a common crosspiece 94, as shown schematically in Figure 7.
- one or more nozzles 11 can be made with a pipe 13. More generally, these nozzles 11 can be made in one piece with the support 9.
- the nozzles 11 can be injected, molded in the material of the second part or lower part 9B in the example described with reference to FIG. 7.
- This mode of integration of the nozzles 11 by molding allows a significant gain in terms of size and cost. This also makes it possible to increase the number of nozzles 11 thus improving the uniformity of spraying of the dielectric fluid.
- the nozzles 11 can be separate from the pipe 13 and be fluidly connected at the level of the distribution or connection points 14 of the pipe 13.
- the nozzles 11 can be attached and fixed to the support 9, 9', at the level of the connection points 14. This fixing can be done in the second part or lower part 9B in the example described with reference to FIG. 7.
- the nozzles 11 can for example be screwed, clipped and/or even inserted, mounted by adjustment in a pipe 13.
- the nozzles 11 can optionally be metallic.
- the support 9 ' can be made by a component in its own right which is mounted in the housing 5.
- This support 9′ is made independently of the box 5 intended to receive it.
- the support 9' is made independently of the cover 53 and of the container 52 forming the box 5.
- This 9′ support can be made of a composite plastic material, advantageously heat-resistant.
- the support 9′ can be at least partially metallic.
- the support 9′ comprising at least one element for fixing to the case.
- it is advantageously an element with a dual function of sealing and fixing.
- a peripheral sealing lip 10 is arranged along the support 9 '.
- the support 9' has the general shape of a frame, such a sealing lip 10 can be placed all around the frame, as shown in the example of Figure 1.
- the sealing lip 10 can for example be fixed on a peripheral rib 96 along the support 9 ', as shown in the example of Figure 4.
- the sealing lip 10 is also configured to be arranged between the lid 53, in particular a peripheral edge or a foot of the lid, and the container 52, in particular a peripheral edge or a foot of the latter. The sealing lip 10 then finds itself pinched between the container 52 and the cover 53 which closes the case 5.
- the support 9' can comprise a predefined number of fixing holes 12 (see FIG. 2) arranged, for example on a peripheral edge of the support 9', to coincide with fixing holes already provided for fixing the cover 53 with the container 52.
- the support 9' when it has one or more crosspieces 94 as previously described, can be fixed for example by clipping onto ribs originating, for example by being made in one piece, from the lid 53 or from the container 52.
- support elements such as ribs can be molded or added to the support 9 'to be fixed to the cover 53, or to the container 52 for example on a side wall or even a bottom wall.
- the support 9' may include a zone called accessory zone 98.
- This accessory zone 98 is configured for the fluidic connection of the dielectric fluid circuit, in particular of the at least one pipe 13 with one or more additional devices, such as the suction pump 60, the filter 62, the heat exchanger 64, which are in particular necessary for the operation or advantageous for the operation of the dielectric fluid circuit and the nozzles 11
- it may be at least one of the suction pump 60, the filter 62, the heat exchanger 64 such as a cooler and/or a radiator, or even one or more sensors. pressure or temperature (figures 1 to 3).
- the 9' support carries and integrates one or more of these additional components.
- the integration on the support 9', and more precisely the mechanical connection of at least one or more of these organs can be done at the level of the accessory zone 98.
- the accessory zone 98 can be substantially planar. In the example illustrated, this zone 98 forms a platform or an extension at a point of a peripheral edge, for example longitudinal or lateral, of the support 9'.
- the accessory zone 98 may have one or more channels in which the dielectric fluid is intended to flow. The or at least one channel makes it possible to place additional members in fluid communication with each other, or between at least one of these additional members and the or at least one pipe 13 defined by the support 9'.
- a channel fluidly connected to a dielectric fluid outlet of the suction pump 60 and to a dielectric fluid inlet of the heat exchanger 64 and/or a channel connected fluidically to a dielectric fluid outlet of the heat exchanger 64 or, in the absence of the latter, to a dielectric fluid outlet of the suction pump 60, and leading to the filter 62, and/or a channel provided in outlet of the filter 62, or in the absence of filter 62 at the outlet of the heat exchanger 64, or in the absence of the heat exchanger 64, at the outlet of the suction pump 60, and fluidly connected to the at least one line 13.
- the support 9 comprises at least the suction pump 60, the filter 62, and the heat exchanger 64, and the accessory zone 98 comprises in communication between these elements and with the or at least one pipe 13.
- the accessory zone 98 comprises at least: a channel 98a putting in fluid communication a dielectric fluid outlet of the suction pump 60 and a dielectric fluid inlet of the heat exchanger 64 such as a cooler , in which coolant fluid is intended to circulate so as to allow cooling of the dielectric fluid, a channel 98b arranged at a dielectric fluid outlet of the heat exchanger 64 and opening onto the filter 62, so as to filter the dielectric fluid , And a channel 98c arranged at the outlet of the filter 62 and fluidly connected to the or at least one pipe 13.
- the dielectric fluid sucked up by the pump 60 is sent to the heat exchanger 64 for cooling before being filtered and on leaving the filter 62, the cooled and filtered dielectric fluid is injected into the or at least one pipe 13, and circulates until it reaches various nozzles 11 intended to project this fluid onto the components or modules 7 and/or onto the cover 13.
- the support 9' integrates these channels 98a, 98b, 98c connecting the various members 60, 62, 64 and comprises connectors adapted to the connection of these members 60, 62, 64.
- the support 9' is made by the assembly of at least two parts 9A, 9B, possibly molded, one of the parts can integrate the channels 98a, 98b, 98c and the connectors.
- Second embodiment Support integrated into the cover
- a second embodiment of support 9 is shown in Figures 6 and 7.
- the support 9 is made in one piece with an element of the housing 5, advantageously the cover 53. It is no longer a question, as in the first embodiment, of a component in its own right which is fixed within the case 5.
- the support 9 can be integrated into the cover 53 by molding or overmolding.
- the support 9 can be at least partially, or even completely, embedded in the material forming the cover 53.
- This integration of the support 9 to the cover 53 is particularly advantageous when the support 9 is made of a composite plastic material, preferably heat-resistant.
- the cover 53 integrating the support 9 may comprise at least one inlet 2 configured to bring the dielectric fluid into the dielectric fluid circuit.
- the pipe or pipes 13 defined by the support 9 are in fluid communication with the inlet mouth 2.
- at least one dielectric fluid outlet mouth 4 configured to evacuate the dielectric fluid to the outside of the casing 5 can be provided. According to a particular example, such an outlet mouth 4 can be formed in the housing 5, for example at the level of the bottom of the container 52, with reference to the orientation of the elements in FIG. 5.
- a seal 28 can be arranged and maintained between the lid 53 incorporating the support 9 and the peripheral edge facing the container 52.
- the collector 16 when provided, is configured to be arranged to collect the dielectric fluid, flowing after spraying for example along the walls of the components or modules 7.
- the dielectric fluid recovered at collector level 16 is referenced by the arrow F30.
- the collector 16 is also fluidically connected to the outlet mouth 4, so as to allow the evacuation of the dielectric fluid, as shown schematically by the arrows F40.
- the manifold 16 is arranged opposite the supply line(s) 13. H is in the example illustrated arranged between the components or modules 7 and the bottom wall 55 of the container 52. This makes it possible to collect the dielectric fluid below the components or modules 7. In particular, the collector 16 extends vis-à-vis the entire underside of the components or modules 7.
- the collector 16 can be integrated into the housing 5, in particular at the level of the bottom of the container 52, for example by overmoulding. This can advantageously be achieved with a collector 16 made of composite plastic material, in particular heat-resistant.
- the collector 16 could be made separately from the housing 5. In such a case, it can be assembled for example by clipping or screwing into the housing 5.
- the collector 16 comprises a predefined number of orifices 22 for discharging the dielectric fluid.
- the evacuation orifices 22 can be made on one face of the manifold 16, called the lower face, intended to be arranged facing the bottom wall of the container 52.
- the number of evacuation orifices 22 can be adapted. A multiplicity of evacuation orifices 22 makes it possible to facilitate evacuation by suction by a pump.
- These evacuation orifices 22 are intended to be fluidically connected to the outlet mouth 4 of the dielectric fluid.
- the evacuation orifices 22 can open into at least one evacuation pipe 24.
- the evacuation pipe 24 is for example formed between the collector 16 and the bottom wall 55 of the container 52, arranged opposite the evacuation orifices 22.
- the outlet mouth 4 can also open into this evacuation pipe 24.
- the collector 16 may optionally have one or more slopes inclined with respect to the bottom wall 55, and descending in the direction of an associated evacuation orifice 22. Collector 16 may also have at least one separating rib intended to extend between two components or modules 7.
- the 9 or 9' support can be added, easily integrated into different types of boxes, in particular battery packs.
- the support 9' can be completely independent of the box 5, in particular of the cover 53 or be integrated into the cover 53, for example by overmoulding.
- This support 9 or 9' comprises the nozzles 11 and defines one or more pipes 13 making it possible to supply these nozzles 11.
- the dielectric fluid can then be projected by the nozzles 11 so as to come into contact with or fall back onto the surfaces to be sprayed components or modules 7.
- the nozzles 11 are molded with the support 9, 9' so that their number can be increased.
- the nozzles 11, when they are multi-jets, make it possible to reduce the number of nozzles 11, and therefore the cost, while allowing homogeneous spraying of the dielectric fluid on the surfaces of the modules 7.
- the support 9 ' can integrate the organs related to the operation of the dielectric fluid circuit and allowing in operation, to distribute, or even to thermally condition and / or filter, the dielectric fluid before the circulation in the pipes 13 in such a way to supply the various nozzles 11. This makes it possible to minimize the connections with the outside of the box 5.
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- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202380016613.1A CN118525407A (zh) | 2022-01-14 | 2023-01-12 | 特别是用于机动车辆的用于介电流体回路的支撑件和相应的热调节组件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FRFR2200319 | 2022-01-14 | ||
FR2200319A FR3132001A1 (fr) | 2022-01-14 | 2022-01-14 | Support de circuit de fluide diélectrique et ensemble de régulation thermique correspondant, notamment pour véhicule automobile |
Publications (1)
Publication Number | Publication Date |
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WO2023135213A1 true WO2023135213A1 (fr) | 2023-07-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2023/050647 WO2023135213A1 (fr) | 2022-01-14 | 2023-01-12 | Support de circuit de fluide diélectrique et ensemble de régulation thermique correspondant, notamment pour véhicule automobile |
Country Status (3)
Country | Link |
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CN (1) | CN118525407A (fr) |
FR (1) | FR3132001A1 (fr) |
WO (1) | WO2023135213A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017212209A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
DE102017212211A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
DE102017212208A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
WO2019015861A1 (fr) * | 2017-07-17 | 2019-01-24 | Mahle International Gmbh | Dispositif accumulateur d'énergie |
-
2022
- 2022-01-14 FR FR2200319A patent/FR3132001A1/fr active Pending
-
2023
- 2023-01-12 WO PCT/EP2023/050647 patent/WO2023135213A1/fr active Application Filing
- 2023-01-12 CN CN202380016613.1A patent/CN118525407A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017212209A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
DE102017212211A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
DE102017212208A1 (de) * | 2017-07-17 | 2019-01-17 | Mahle International Gmbh | Energiespeicheranordnung |
WO2019015861A1 (fr) * | 2017-07-17 | 2019-01-24 | Mahle International Gmbh | Dispositif accumulateur d'énergie |
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FR3132001A1 (fr) | 2023-07-21 |
CN118525407A (zh) | 2024-08-20 |
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