EP3857157A1 - Dispositif de gestion thermique d'un dispositif de stockage électrique pour véhicule automobile - Google Patents
Dispositif de gestion thermique d'un dispositif de stockage électrique pour véhicule automobileInfo
- Publication number
- EP3857157A1 EP3857157A1 EP19801932.5A EP19801932A EP3857157A1 EP 3857157 A1 EP3857157 A1 EP 3857157A1 EP 19801932 A EP19801932 A EP 19801932A EP 3857157 A1 EP3857157 A1 EP 3857157A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchange
- recess
- plug
- thermal management
- management device
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
- F28F7/02—Blocks traversed by passages for heat-exchange media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00328—Heat exchangers for air-conditioning devices of the liquid-air type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the field of the present invention relates to the thermal regulation of an electrical storage device, and more particularly, the present invention relates to the thermal regulation of an electrical storage device intended for electric or hybrid motor vehicles.
- Electric and hybrid vehicles are commonly equipped with an electric storage device.
- Such an electrical storage device consists of an assembly of electrical modules, themselves made of an assembly of electrochemical cells.
- the electrical storage device should be thermally regulated.
- Thermal management of the electrical storage device aims to maintain the temperature of the electrical modules that compose it, at a temperature of approximately between 20 ° C and 40 ° C. Indeed, when the temperature of an electrical module is too low, the capacity of its electrochemical cells decreases and when the temperature of an electrical module is too high the lifetime of its electrochemical cells is degraded.
- a thermal management device comprising at least one heat exchange plate positioned directly in contact with an electrical module of the electrical storage device and traversed by a heat transfer fluid.
- the heat exchange plate or plates are traversed by a heat exchange circuit formed for example by conduits formed in the heat exchange plate or plates themselves.
- This heat exchange circuit generally comprises circulation channels, the ends of which open out onto the edges of the heat exchange plates. These ends outlets are blocked by plugs in order to close the heat exchange circuit. These plugs are generally glued, brazed or welded to the heat exchange plate.
- One of the aims of the present invention is to at least partially remedy the drawbacks of the prior art and to propose an improved thermal management device in particular at the level of the fixing of the plugs obstructing the through ends of the circulation channels.
- the present invention therefore relates to a thermal management device of an electrical storage device for a motor vehicle, said thermal management device comprising at least one heat exchange plate inside which is formed a heat exchange circuit at within which is intended to circulate a heat transfer fluid, the heat exchange plate comprising a circulation channel of which at least one end is open onto one of the edges of said heat exchange plate, said open end being obstructed by a crimped plug on the edge of the heat exchange plate, said edge comprising at the level of the open end of the circulation channel a recess inside which the plug is inserted, the plug having an upper part covering the open end and being of a height less than the depth of said recess, the recess comprising on its edges at least two portions crushed and pushed inwardly of said recess at least locally so as to at least partially cover the edges of the upper part of the plug.
- the fact of crimping the plug on the heat exchange plate makes it possible to seal the circulation channels without having to resort to heavy and energy-consuming means such as brazing.
- the indentation is carried out over the entire thickness of the wafer.
- the edges of the recess are crushed and pushed back towards the inside of the recess over the entire thickness of the wafer.
- the edges of the recess are crushed and pushed back inside the recess over part of the thickness of the wafer.
- the plug has a seal placed between its upper part and the bottom of the recess.
- the through end of the circulation channel forms an opening and in that the plug has a stud arranged perpendicular to its upper part, said stud coming to be inserted inside said opening.
- the opening and the circulation channel are of oblong section, said opening being longer than said circulation channel so as to form two shoulders at the bottom of said opening, the tenon of the plug coming in look of said shoulders.
- the plug has a seal surrounding the post and coming into contact with the interior wall of the opening.
- the seal placed between the upper part of the stopper and the bottom of the recess comes integrally with the seal surrounding the tenon.
- FIG. 1 shows a schematic perspective representation of a thermal management device according to a first embodiment
- FIG. 2 shows a schematic perspective representation of a thermal management device according to a second embodiment
- FIG. 3 shows a schematic perspective representation of a thermal management device according to a third embodiment
- FIG. 4 shows a schematic perspective representation of the fixing of a plug according to a first embodiment
- FIG. 5 shows a schematic perspective representation of the fixing of a plug according to a second embodiment
- FIG. 6 shows a schematic perspective representation of the edge of a heat exchange plate
- Figure 7 shows a schematic perspective representation of a plug.
- first element or second element as well as first parameter and second parameter or even first criterion and second criterion etc.
- indexing to differentiate and name elements or parameters or criteria that are close but not identical. This indexing does not imply a priority of an element, parameter or criterion over another and one can easily interchange such names without departing from the scope of this description. This indexing also does not imply an order in time for example to assess this or that criterion.
- FIG. 1 shows a thermal management device 1 of an electrical storage device for a motor vehicle.
- This thermal management device 1 comprising at least one heat exchange and connection plate 10A inside which is formed a heat exchange circuit within which is intended to circulate a heat transfer fluid.
- This heat exchange and connector plate 10A comprises a first 101A and a second 102A flat wall parallel to each other.
- One of its first 101 A and second 102A walls also has at least one connection piece 20, 20 ’to the heat exchange circuit.
- This connection end piece 20, 20 ’ is crimped into and protrudes from this first 101A or second 102A wall.
- the thermal management device 1 can be simple, as illustrated in FIG. 1, and comprise only a heat exchange and connection plate 10A on which is intended to come into contact one or more electrical storage devices at the level d 'one of its first 101 A or second 102A walls.
- the heat exchange circuit can then be limited to a circulation channel 16A produced in the thickness of the heat exchange and connection plate 10A. This circulation channel 16A extends parallel to the first 101A and second walls 102A.
- the heat exchange and connection plate 10A can be made in one piece.
- the circulation channel 16A can be produced by machining in the thickness of the heat exchange and connection plate 10A or else the heat exchange and connection plate 10A can be extruded.
- the circulation channel 16A thus comprises at least one through end 60A at the level of the edge of the heat exchange and connection plate 10A.
- the circulation channel 16A has two open ends 60A at two opposite edges. These through ends 60A are more particularly blocked, for example by a plug 70 (visible in FIGS. 4 and 5).
- the thermal management device 1 can be more complex as illustrated in FIGS. 2 and 3, and include several heat exchange plates 10A, 10B, 10C.
- the thermal management device 1 comprises a first heat exchange plate 10C extending in a first plane, a second heat exchange plate 10B extending in a second plane secant in the foreground and attached to one of the slices 103C of the first heat exchange plate 10C and a heat exchange and connection plate 10A being in a third plane parallel to the foreground and attached to a slice 103B of the second heat exchange plate 10B.
- the heat exchange circuit thus comprises a circulation duct 16C formed in the first heat exchange plate 10C and extending in the same plane as said first heat exchange plate 10C.
- This circulation duct 16C has an inlet and an outlet for heat transfer fluid on the edge 103C on which the second heat exchange plate 10B is placed side by side.
- This circulation duct 16C can in particular comprise a so-called main circulation channel 165C and two secondary channels 166C.
- the main channel 165C can be machined in the thickness of the first heat exchange plate 10C or the main channel 165C can be formed at the same time as the first plate 10C if the latter is extruded.
- the secondary channels 166C can be machined in the thickness of the first heat exchange plate 10C.
- the main channel 165A thus comprises at least one end 60C emerging at a level of a section of the first heat exchange plate 10C.
- the main channel 165C has two open ends 60C at two opposite edges. These through ends 60C are more particularly blocked, for example by a plug 70 (visible in FIGS. 4 and 5).
- the secondary channels 166C meanwhile fluidly connect the main channel 165 to the wafer 103C of the first heat exchange plate 10C which allows the fluid connection with the second heat exchange plate 10B.
- the second heat exchange plate 10B comprises a supply duct 161B and a discharge duct 162B both extending in the same plane as said second heat exchange plate 10B.
- the supply duct 161B has an inlet for heat transfer fluid on the edge 103B of the second heat exchange plate 10B attached to the heat exchange and connection plate 10A and an outlet for heat transfer fluid at the inlet of heat transfer fluid of the circulation duct 16C of the first heat exchange plate 10C.
- the evacuation duct 162B comprises, for its part, an outlet for heat transfer fluid on the edge 103B of the second heat exchange plate 10B attached to the heat exchange and connection plate 10A and an inlet for heat transfer fluid at the level of the heat transfer fluid outlet from the circulation duct 16C of the first heat exchange plate 10C.
- the evacuation duct 161B and the evacuation duct 162b can be separate from one another or else formed from the same main circulation channel 165B separated in two by a partition 17B, as illustrated in the Figures 2 and 3.
- the second heat exchange plate 10B comprises a so-called main circulation channel 165B.
- This main channel 165B can be machined in the thickness of the second heat exchange plate 10B or else the main channel 165B can be formed at the same time as the second heat exchange plate 10B if the latter is extruded.
- the main channel 165B thus comprises at least one end 60B emerging at a level of a section of the second heat exchange plate 10B.
- the main channel 165B has two through ends 60C at two opposite edges. These ends outlets 60B are more particularly blocked, for example by a plug 70 (visible in FIGS. 4 and 5).
- the second heat exchange plate 10B also includes a partition 17B separating the main channel 165B into two distinct and watertight portions relative to one another.
- the second heat exchange plate 10B also comprises two chambers 18B also machined and which allow the fluid connection between the secondary channels 166C of the first heat exchange plate 10C and the main channel 165B of the second heat exchange plate 10B. These chambers 18B are machined on the opposite face of the second heat exchange plate 10B opposite to that adjoining the first exchange plate 10B and are covered by a plug 70 (visible in Figures 4 and 5).
- the second heat exchange plate 10B also comprises two secondary channels 166B which fluidly connect the main channel 165B to the edge 103B of the second heat exchange plate 10B. This allows fluid connection with the heat exchange and connector plate 10A.
- the supply duct 161B is thus composed of a secondary channel 166B connected to a portion of the main channel 165B and to a chamber 18B.
- the evacuation duct 162B is in turn composed of another secondary channel 166B connected to the other portion of the main channel 165B and to another chamber 18B.
- the heat exchange and connection plate 10A comprises two connection end pieces 20, 20 ’.
- a first connection end piece 20 is connected to the heat transfer fluid inlet of the supply pipe 161B and a second connection end piece 20 'is connected to the heat transfer fluid outlet of the evacuation pipe 162B.
- the heat exchange and connection plate 10A comprises two circulation channels 16A, 16A '.
- a first circulation channel 16A allows the fluid connection between the first connection endpiece 20 and the supply conduit 161B.
- a second circulation channel 16A ′ allows the fluid connection between the second connection end piece 20 ′ and the evacuation duct 162B.
- These circulation channels 16 A, 16 A ' can also be machined directly into the thickness of the heat exchange plate and connector 10A or else be produced at the same time as the heat exchange plate and connector 10A if the latter is extruded.
- the connection end pieces 20, 20 ′ can thus be placed at any place on any wall 101A, 101B of the heat exchange and connection plate 10A.
- connection end pieces 20, 20 ′ are arranged directly above the heat transfer fluid inlet of the supply duct 161B and of the heat transfer fluid outlet of the duct d evacuation 162B.
- electrical storage devices can be placed on the first heat exchange plate 10C as well as on the heat exchange and connection plate 10A, with one of their sides in contact with the second heat exchange plate 10B.
- the different heat exchange plates 10A, 10B and 10C can be fixed to each other by screws (not shown). Joints can in particular be placed at the level of the fluid connections between the various conduits and channels of the heat exchange plates 10A, 10B and 10C to avoid any leaks.
- Figures 4 to 7 show in more detail the closure of a through end 60A, 60B, 60C of a circulation channel 16A, 16A ', 165B, 165C by a plug 70.
- the plug 70 is more particularly crimped on the edge of the heat exchange plate 10A, 10B, 10C.
- the edge of the heat exchange plate 10A, 10B, 10C comprises, at the level of the through end 60A, 60B, 60C of the circulation channel 16A, 16A ', 165B, 165C, a recess 61.
- this recess 61 is produced over the entire thickness of the wafer.
- the plug 70 is inserted inside this recess 61.
- the plug 70 has an upper part 71 covering the through end 60A, 60B, 60C.
- This upper part 71 is of a height less than the depth of the recess 61.
- the recess 61 has meanwhile on its edges 610 at least two crushed portions 62 and pushed inwardly of said recess 61 at least locally so as to at least partially cover the edges of the upper part 71 of the plug 70.
- a single flange 610 and a single crushed portion 62 are shown.
- a second rim 610 with a second crushed portion 62 are present on the other side of the recess 61 in order to maintain the plug 70.
- the flanges 610 are crushed and pushed back inside the recess 61 over the entire thickness of the edge of the heat exchange plate 10A, 10B, 10C.
- This fixing by crimping the plug 70 over the entire thickness of the edge of the heat exchange plate 10A, 10B, 10C makes it possible to withstand pressures of the order of 10 bars, which is much higher than the average pressure than undergoes this part in use.
- failures only appear beyond 200,000 cycles for cycled pressures from 0.2 to 7 bars, which is also much higher than the recommendations in the field.
- the flanges 610 are crushed and pushed back inside the recess 61 over part of the thickness of the edge of the heat exchange plate 10A, 10B, 10C.
- This fixing by crimping the plug 70 over part of the thickness of the edge of the heat exchange plate 10A, 10B, 10C makes it possible to obtain performances similar to that described above.
- the plug 70 may include a seal 81 disposed between its upper part 71 and the bottom of the recess 61. During crimping, this seal 81 is compressed for a good seal.
- the through end 60A, 60B, 60C of the circulation channel 16A, 16A ′, 165B, 165C can form an opening 63.
- the plug 70, for its part, can comprise a tenon 72 disposed perpendicularly to its upper part 71, as illustrated in FIG. 7. This tenon 72 is inserted in particular inside the opening 63.
- the opening 63 and the circulation channel 16A, 16A ’, 165B, 165C can more particularly be of oblong section.
- the opening 63 can then be longer than the circulation channel 16A, 16A ', 165B, 165C so as to form two shoulders 64 at the bottom of the opening 63.
- the lug 72 of the plug 70 is then positioned opposite the shoulders 64 when the plug 70 is in place. More specifically, these are the ends of the stud 72 which are each positioned opposite a shoulder 64.
- the plug 70 may also include a seal 82 surrounding the post 72. This seal 82 surrounding the post 72 comes into contact with the interior wall of the opening 63 when the plug 70 is in place.
- the seal 81 disposed between the upper part 71 of the plug 70 and the bottom of the recess 61 comes integrally with the seal 82 surrounding the stud 72. This makes it possible to have only one seal seal 81, 82 easy to install on the plug 70.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Geometry (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1858865A FR3086743B1 (fr) | 2018-09-27 | 2018-09-27 | Dispositif de gestion thermique d'un dispositif de stockage electrique pour vehicule automobile |
| PCT/FR2019/052283 WO2020065236A1 (fr) | 2018-09-27 | 2019-09-26 | Dispositif de gestion thermique d'un dispositif de stockage électrique pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3857157A1 true EP3857157A1 (fr) | 2021-08-04 |
Family
ID=65243924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19801932.5A Withdrawn EP3857157A1 (fr) | 2018-09-27 | 2019-09-26 | Dispositif de gestion thermique d'un dispositif de stockage électrique pour véhicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210339599A1 (fr) |
| EP (1) | EP3857157A1 (fr) |
| CN (1) | CN216432656U (fr) |
| FR (1) | FR3086743B1 (fr) |
| WO (1) | WO2020065236A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068093B (en) * | 1980-01-24 | 1983-08-17 | Potterton Int Ltd | Heat exchangers |
| SE0003015L (sv) * | 2000-08-25 | 2002-02-26 | Hydraul Syd Ab | Anordning vid manöverventilblock i hydraulsystem |
| JP5490265B2 (ja) * | 2011-01-31 | 2014-05-14 | 三菱電機株式会社 | 熱交換器、この熱交換器の製造方法、及びこの熱交換器を備えた冷凍サイクル装置 |
-
2018
- 2018-09-27 FR FR1858865A patent/FR3086743B1/fr not_active Expired - Fee Related
-
2019
- 2019-09-26 US US17/279,781 patent/US20210339599A1/en not_active Abandoned
- 2019-09-26 EP EP19801932.5A patent/EP3857157A1/fr not_active Withdrawn
- 2019-09-26 WO PCT/FR2019/052283 patent/WO2020065236A1/fr not_active Ceased
- 2019-09-26 CN CN201990001163.8U patent/CN216432656U/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR3086743A1 (fr) | 2020-04-03 |
| US20210339599A1 (en) | 2021-11-04 |
| FR3086743B1 (fr) | 2020-09-04 |
| CN216432656U (zh) | 2022-05-03 |
| WO2020065236A1 (fr) | 2020-04-02 |
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