EP4081457A1 - Structure porteuse pour véhicule spatial et procédé de montage d'une structure porteuse pour véhicule spatial - Google Patents
Structure porteuse pour véhicule spatial et procédé de montage d'une structure porteuse pour véhicule spatialInfo
- Publication number
- EP4081457A1 EP4081457A1 EP20851224.4A EP20851224A EP4081457A1 EP 4081457 A1 EP4081457 A1 EP 4081457A1 EP 20851224 A EP20851224 A EP 20851224A EP 4081457 A1 EP4081457 A1 EP 4081457A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side wall
- branch
- heat pipe
- wall
- fixed
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 31
- 238000012546 transfer Methods 0.000 claims description 55
- 230000000284 resting effect Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 53
- 238000010168 coupling process Methods 0.000 abstract description 53
- 238000005859 coupling reaction Methods 0.000 abstract description 53
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 241000726409 Satellites Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/46—Arrangements or adaptations of devices for control of environment or living conditions
- B64G1/50—Arrangements or adaptations of devices for control of environment or living conditions for temperature control
- B64G1/503—Radiator panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/46—Arrangements or adaptations of devices for control of environment or living conditions
- B64G1/50—Arrangements or adaptations of devices for control of environment or living conditions for temperature control
- B64G1/506—Heat pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
Definitions
- TITLE Supporting structure for a space vehicle and method of mounting a supporting structure for a space vehicle
- the present invention lies in the field of space vehicles and in particular in the field of geostationary satellites.
- Space vehicles contain electronic equipment that emits heat during operation. This heat is dissipated by radiators mounted on the north and south walls of space vehicles. Manufacturers of space vehicles are looking to improve the cooling of electronic equipment in order to guarantee a longer lifespan.
- a first object of the present invention is to improve the thermal rejection of space vehicles.
- a second object of the present invention is to improve the heat transfer between the North and South walls of space vehicles. Increasing this heat transfer also increases the overall thermal rejection of space vehicles.
- space vehicles typically have an amplifier and a redundant amplifier connected to each communication antenna.
- the redundant amplifier is used in the event of amplifier failure.
- the amplifiers and redundant amplifiers are fixed on the walls equipped with radiators - that is to say - the North and South walls - in order to be able to evacuate the large quantity of heat dissipated by them- this.
- a single redundant amplifier for the two main antennas is not used as this would require the installation of electrical cables and waveguides between the two walls. The installation of these cables and its waveguides would significantly increase the weight of the spacecraft and increase its price.
- a third object of the present invention is to reduce the number of amplifiers mounted in space vehicles while ensuring the redundancy function allowing the replacement of an amplifier in the event of failure thereof.
- a fourth object of the present invention is to increase the number of electronic equipment that can be fixed in space vehicles.
- the present invention also relates to a new method of mounting a supporting structure for a space vehicle.
- the assembly of space vehicles begins with a first step illustrated in Figure 8, during which heat pipes 52 are attached next to each other on the north wall 30, the south wall 32 and the west wall 24.
- the west wall 24 is attached to the north wall 30 and to the south wall 32.
- a thermal coupling heat pipe 92 is attached between the north wall 30 and the west wall 24.
- Another thermal coupling heat pipe 93 is fixed between the west wall 24 and the south wall 32.
- These coupling heat pipes 92, 93 are attached to the side edges 90 not provided with electronic equipment.
- the coupling heat pipes 92, 93 have two branches perpendicular to each other. Each branch is about 200 millimeters long. No electronic equipment is attached to the thermal coupling heat pipes.
- a fifth object of the present invention is to provide a faster method of mounting a supporting structure of a space vehicle.
- a sixth object of the present invention is to provide an assembly method using a larger number of standard components.
- a first object of the present invention is to improve the thermal rejection of space vehicles.
- a second object of the present invention is to improve the heat transfer between the North wall and the South wall of space vehicles.
- a third object of the present invention is to reduce the number of amplifiers mounted in space vehicles while ensuring the redundancy function allowing the replacement of an amplifier in the event of failure thereof.
- a fourth object of the present invention is to increase the number of electronic equipment that can be fixed in the space vehicle.
- a fifth object of the present invention is to provide a faster method of mounting a supporting structure of a space vehicle.
- a sixth object of the present invention is to provide an assembly method using a larger number of standard components.
- the present invention relates to a supporting structure for a space vehicle comprising a first side wall, a second side wall parallel and opposite to the first side wall, the first side wall (30) being a wall among a north wall and a south wall, the second side wall (32) being the other wall among a north wall and a south wall, a third side wall fixed at least to the first side wall and a fourth side wall parallel and opposite to the third side wall, the first side wall and the second side wall each being equipped with a radiator, characterized in that it further comprises:
- At least one interior panel fixed between and perpendicular to the first side wall and to the second side wall; with the interior panel positioned equidistant from the third side wall and the fourth side wall, when the spacecraft containing the supporting structure is in orbit around the earth, the interior panel is positioned to contain a vector directed towards the earth, 1e inner panel has a main face and an opposite main face;
- first L-shaped heat pipe having a first branch resting against the second side wall and a second branch (62) fixed to the interior panel, the second branch of the first heat pipe having in its rectilinear part a length greater than 80% the distance between the first side wall and the second side wall;
- the thermal coupling devices which are fixed to each side of the interior panel are identical.
- the result is a standardization of the manufacturing process and a reduction in the manufacturing cost.
- this supporting structure makes it possible to mount high-power electronic components on the interior panel. This results in a saving of space making it possible to install a greater number of equipment.
- the structure comprises at least a second L-shaped heat pipe having a first branch bearing against the first side wall and a second branch bearing against the inner panel, the second heat pipe being in heat exchange with the first heat pipe, said supporting structure further comprising electronic equipment arranged on and in direct thermal contact with said second heat pipe.
- this space vehicle has better thermal coupling between the North wall and the South wall.
- the second branch of the second heat pipe is in direct thermal contact with the second branch of the first heat pipe, the second branch of the second heat pipe being fixed against the second branch of the first heat pipe.
- the second branch of the first heat pipe is fixed against the main face of the inner panel and in which the second branch of the second heat pipe is fixed against the opposite face of the inner panel.
- the second side wall comprising a first zone and a second zone delimited by the interior panel, the first branch of the first heat pipe resting against the first zone of the second side wall, the second branch of the first heat pipe being fixed to the main face of the interior panel, said supporting structure further comprising a first additional heat pipe having a first branch resting against the second zone of the second side wall and a second branch fixed against the opposite main face of the interior panel.
- the structure includes rectilinear heat transfer devices attached to said second side wall, the first heat pipe being secured against said heat transfer devices and being in direct thermal contact with said heat transfer devices.
- the structure which includes rectilinear heat transfer devices attached to said first side wall, said at least one second heat pipe being attached to said heat transfer devices and being in direct thermal contact with said heat transfer devices.
- the structure which comprises a first main antenna and a second main antenna
- said electronic equipment comprises a first amplifier attached to the first side wall, and connected to the first main antenna, a second amplifier attached to the second side wall and connected to the second main antenna and a single redundant amplifier fixed against the interior panel and connected to the first main antenna and to the second main antenna.
- the first branch of one of the first heat pipe and the second heat pipe has a length of between 0.5 meter and 1.5 meters and preferably between 0.7 meters and 1 meter.
- the second branch of the first heat pipe has a length of between 2 meters and 2.7 meters and preferably between 2.4 meters and 2.7 meters.
- the second branch of the second heat pipe has a length of between 1 meter and 1.5 meters, preferably between 1.2 meters and 1.4 meters.
- the invention also relates to a method of mounting a supporting structure for a space vehicle from a first side wall, a second side wall, an interior panel having a main face and an opposite main face, at least a first heat pipe having a first branch and a second branch, the second branch of the first heat pipe having in its rectilinear part a length greater than 80% of the distance between the first side wall and the second side wall, the method comprising the steps consecutive following: a) fix said interior panel between and perpendicular to the first side wall and to the second side wall, the interior panel being positioned so as to contain a vector (V) directed towards the earth, when the space vehicle containing the supporting structure is in orbit around the earth, b) mount the first branch of said at least one first heat pipe resting against the second side wall and fix said second branch e from said at least one first heat pipe to the interior panel, c) securing electronic equipment against the first branch of said at least one first heat pipe, and fixing electronic equipment against at least part of the second branch of said at least one
- the method further comprises a step of mounting the first branch of at least one second heat pipe resting against the first side wall and fixing the second branch of said at least one second heat pipe against, and in direct thermal contact with, a part of the second branch of the at least one first heat pipe; said fixing step being carried out between the mounting step b) and the fixing step c); equipment electronics being fixed on the first side wall against the first branch of the second heat pipe and, on the interior panel against the second branch of the second heat pipe during the fixing step c).
- the interior panel comprises at least one through orifice and in which the method further comprises a step of establishing at least one electrical connection between at least one piece of electronic equipment attached to the main face of the interior panel and one piece of electronic equipment attached to the opposite main face of the interior panel; said electrical connection passing through said through orifice.
- Electronic equipment is attached to the entire second branch of said at least one first heat pipe during attachment step c).
- FIG. 1 is a schematic view of a spacecraft comprising a supporting structure according to the invention in geostationary orbit
- FIG. 2 is a schematic perspective view of part of a space vehicle comprising a supporting structure according to a first embodiment of the invention
- FIG. 3 is a schematic view of a cross section of the space vehicle comprising a supporting structure according to the first embodiment of the invention in which the electronic equipment has not been shown;
- FIG. 4 is a schematic perspective view of part of a supporting structure for a spacecraft according to the first embodiment of the invention;
- FIG. 5 is a schematic view of a cross section of a spacecraft comprising a supporting structure according to the first embodiment of the invention in which the amplifiers have been shown;
- FIG. 6 is a schematic perspective view of part of a supporting structure for a spacecraft according to a second embodiment of the invention;
- FIG. 7 is a schematic perspective view of part of a supporting structure for a spacecraft according to a third embodiment of the invention.
- FIG. 8 is a schematic view of a first step of a prior art assembly process for a spacecraft
- FIG. 9 is a schematic view of a second step of a prior art assembly process for a spacecraft
- FIG. 10 is a schematic view of a third step of a method for mounting a space vehicle according to the state of the art
- FIG. 11 is a schematic view of a fourth step of a method for mounting a space vehicle according to the state of the art
- FIG. 12 is a diagram of the steps of the assembly method according to the present invention
- FIG. 13 is a schematic view of a first step of a method for mounting a supporting structure for a space vehicle according to a first embodiment of the invention
- FIG. 14 is a schematic view of a second step of a method for mounting a supporting structure for a space vehicle according to a first embodiment of the invention
- FIG. 15 is a schematic view of a third step of a method for mounting a supporting structure for a space vehicle according to a first embodiment of the invention
- FIG. 16 is a schematic view illustrating an assembly of electronic equipment in a space vehicle comprising a supporting structure according to the invention
- FIG. 17 is a schematic view illustrating another assembly of electronic equipment in a space vehicle comprising a supporting structure according to the invention
- FIG. 18 is a schematic view of an optional step of the method for mounting a supporting structure for a space vehicle according to the invention
- FIG. 19 is a schematic view of a variant of the method for mounting a supporting structure for a space vehicle according to the invention.
- FIG. 20 is a schematic sectional view of a space vehicle wall on which heat pipes without side edges have been mounted;
- FIG. 21 is a schematic sectional view of a space vehicle wall according to the prior art, said section being made at the level of the fixing screws of an electronic component
- a space vehicle 2 of the geostationary satellite type is able to rotate in an orbit 4 around the Earth 6, the Earth 6 itself rotating in an orbit 8 around the Sun 10.
- the space vehicle 2 is in the form of a box 12 of parallelepiped shape delimiting an interior space 14 and an exterior space 16.
- This box 12 always has the same wall directed towards the Earth, this wall being called the Earth wall 18.
- the wall opposite and parallel to the Earth wall 18 is called an anti-Earth wall 20.
- This box 12 has a North wall 30 or wall -Y, and a South wall 32 or wall + Y.
- the North wall and the South wall are opposite, parallel to each other and parallel to the North-South axis of the Earth 6.
- the North wall 30 and the South wall 32 have a rectangular shape.
- This crate 12 also has an east wall 22 or wall -X, and a west wall 24 or wall + X.
- the east wall 22 and the west wall 24 are opposite walls, parallel to each other and perpendicular to the direction of travel of the spacecraft 2.
- first side wall is used to denote one wall from among the north wall and the south wall
- second side wall is used to denote the wall.
- third side wall and fourth side wall can refer to either of the East 22 and West 24 walls.
- Solar panels 34 are attached to the North wall 30 and to the South wall 32.
- a heater 36 is attached to and extends over the North wall 30.
- Another heater 38 is attached to and extends over the South wall 32 Finally, a first main communication antenna 26 is fixed on the east wall 22 and a second main communication antenna 28 is fixed on the west wall 24.
- the spacecraft has an interior panel 40 attached to the North wall 30, to the South wall 32, to the Earth wall 18 and to the anti-Earth wall 20. It extends perpendicularly to the North wall 30, to the South wall 32, to the Earth wall 18 and the Anti-Earth Wall 20. It runs the entire length of the crate from the Earth wall to the Anti-Earth wall.
- the interior panel 40 is fixed between the North wall 30 and the South wall 32. Seen from the Earth 18 or anti-Earth 20 face, the North wall 30, the South wall 32 and the interior wall 40 have the shape of a " H ”.
- the interior panel 40 is positioned equidistant from the east wall 22 and the west wall 24. In other words, the interior panel 40 is positioned so as to contain a vector V directed towards the earth, when the spacecraft containing the supporting structure is in orbit. around the earth.
- the interior panel 40, the North wall 30, the South wall 32, the radiators 36, 38 form a supporting structure 41 intended to be mounted in the space vehicle 2.
- the interior panel 40 has a main face 42 and an opposite main face 44.
- the interior panel delimits two zones 46, 48 on the interior face of the North wall and two zones 46, 48 on the interior face of the South wall.
- a first zone 46 is located on the side of the main face 42 of the interior panel.
- a second zone 48 is located on the side of the opposite main face 44 of the interior panel.
- the supporting structure 41 transports electronic equipment 50 not shown in Figures 1, 2 and 4 to 7. These electronic equipment are fixed on the two faces of the interior panel 40, on the interior face of the north wall 30 and on the interior face of the. south wall 32.
- This electronic equipment includes, for example, radiofrequency equipment, amplifiers, measuring instruments, computing units and batteries.
- the supporting structure 41 also carries rectilinear heat transfer devices 52 carried by the north wall 30, and rectilinear heat transfer devices 54 carried by the south wall 32.
- the heat transfer devices 52, 54 make it possible to distribute the heat evacuated by electronic equipment 50 over the entire surface of the radiator 36 and radiator 38.
- Each heat transfer device consists of a heat pipe (in English “Heat Pipes”).
- the heat transfer devices 52 are attached to the main internal face of the North wall 30. They are in direct thermal contact with the North wall and the first radiator 36. They are ' extend in the transverse direction of the North wall 30.
- the heat transfer devices 54 are attached to the main internal face of the South wall 32. They are in direct thermal contact with the South wall 32 and the radiator 38.
- the rectilinear heat transfer devices 52, 54 are fixed using a thermally conductive and self-hardening paste.
- the heat transfer devices 52, 54 rectilinear do not have bores intended to receive fixing screws.
- the supporting structure 41 further comprises first "L" shaped thermal coupling devices 56. They have a first branch 60 and a second branch 62 perpendicular to the first branch 60.
- Some first thermal coupling devices 56 are located on the side of the main face 42 of the interior panel. Their first branch 60 is fixed to a part of the heat transfer devices 54 arranged on the first zone 46 of the south wall. Their first branch 60 is in direct thermal contact with the heat transfer devices 54. Their second branch 62 is fixed to the main face 42 of the interior panel. Other first thermal coupling devices 56 ’are located on the opposite main face side 44 of the interior panel. Their first branch 60 is fixed to a part of the heat transfer devices 54 arranged on the second zone 48 of the south wall. Their second branch 62 is fixed to the opposite main face 44 of the interior panel.
- the first branch 60 of the first devices 56 has a length greater than 80% of the distance between the interior panel 40 and the west wall 24.
- the second branch 62 of the first devices 56 has in its rectilinear part a length of between 80% and 100% of the distance between the north wall and the south wall.
- the length of the second branch of the first coupling devices is between 90% and 100%.
- the first branch 60 has a length of between 1 meter and 1.5 meters and, preferably, a length of between 0.7 meters and 1 meter.
- the first branch 60 has a length equal to 1.2 meters.
- the second branch 62 has, for example, a length of between 2 meters and 2.7 meters and, preferably, a length of between 2.4 meters and 2.7 meters.
- the second branch 62 has a length equal to 2.5 meters.
- the first thermal coupling devices 56, 56 'located on either side of the interior panel 40 are identical.
- the supporting structure 41 further comprises second "L" shaped thermal coupling devices 58.
- the second devices 58 also have a first branch 64 and a second branch 66 perpendicular to the first branch 64.
- Their second branch 66 has a length equal to half the distance between the north wall 30 and the south wall 32.
- Some second thermal coupling devices 58 are located on the side of the main face 42 of the interior panel. Their first branch 64 is fixed to a part of the heat transfer devices 52 arranged on the first zone 46 of the north wall. Their first branch 64 is in direct thermal contact with the heat transfer devices 52. Their second branch 66 is fixed to the second branch 62 of the first devices 56. Their second branch 66 is in direct thermal contact with the second branch 62 of the first devices. . Further second thermal coupling devices 58 ’are located on the opposite main face side 44 of the interior panel. Their first branch 64 is fixed to a part of the heat transfer devices 52 placed on the second zone 48 of the north wall. Their second branch 66 is attached to, and is in direct thermal contact with, the second branch 62 of the first thermal coupling devices.
- the second thermal coupling devices 58, 58 ’located on either side of the interior panel 40 are identical.
- the thermal coupling devices 56, 56 ’, 58, 58’ are also fixed using the thermally conductive and self-hardening paste.
- the thermal coupling devices 56, 56 ’, 58, 58’ do not have holes intended to receive fixing screws.
- the first 56, 56 ’and second 58, 58’ thermal coupling devices thermally connect the electronic equipment 50 attached to the interior panel 40 to the radiator 36 and / or to the radiator 38.
- the electronic equipment 50 comprises a first amplifier 68 attached to the north wall and a second amplifier 70 attached to the south wall.
- the first amplifier 68 is electrically connected to the first main antenna 26 so as to be able to amplify the signals before their transmission.
- the second amplifier 70 is electrically connected to the second main antenna 28.
- the supporting structure 41 for a space vehicle 2 according to the invention comprises a single redundant amplifier 72 fixed to the interior panel 40.
- the redundant amplifier 72 is electrically connected to the first main antenna 26 and the second main antenna 28.
- the supporting structure 41 has a large thermal coupling between the north wall 30 and the south wall 32.
- the supporting structure 41 comprises first and second thermal coupling devices arranged side by side to cover the whole of the North wall 30 and the South wall 32.
- first and second thermal coupling devices arranged side by side to cover the whole of the North wall 30 and the South wall 32.
- only two types of bent heat pipes are mounted on the supporting structure of the satellite. The result is a standardization of the satellite heat pipes.
- the rectilinear heat transfer devices 52, 54 and the thermal coupling devices 56, 58 are components having standard dimensions. As a result, there is no longer a need to order custom heat pipes and manage a stock of capillary heat pipes.
- the location of the interior panel allows electronic components 50 to be attached to each side of the interior panel 40.
- a greater number of electronic components can be mounted on the supporting structure of the sattelite.
- these electronic components can be easily and quickly attached.
- the supporting structure 41 includes first and second thermal coupling devices disposed side by side to cover selected parts of the north wall 30 and the south wall 32 to increase heat transfer for those wall parts.
- first and second thermal coupling devices disposed side by side to cover selected parts of the north wall 30 and the south wall 32 to increase heat transfer for those wall parts.
- Such a variant can, for example, be used when electronic equipment which dissipates a lot of heat is mounted on these wall parts or on the corresponding part of the interior panel.
- the supporting structure 41 comprises a single heat transfer device 52 fixed on the north wall and a single heat transfer device 54 fixed on the south wall.
- the rectilinear heat transfer devices are integrated into the north wall and the south wall.
- the thermal coupling devices are fixed to the North wall and to the South wall.
- the supporting structure 41 for a space vehicle according to a second embodiment is identical to the supporting structure according to the first embodiment except for the fact that it does not include second coupling devices 58 and that a first coupling device on two is oriented in the opposite direction.
- the supporting structure for a space vehicle according to the second embodiment has not been shown in full and will not be described in full. Only the thermal transfer devices 52, 54 and the thermal coupling devices of the supporting structure according to this second embodiment will be described.
- the supporting structure 41 according to the second embodiment comprises:
- first thermal coupling device 56 having a first branch 60 fixed, and in direct thermal contact with, a part of the rectilinear thermal transfer device 52 located on the first zone 46 of the north wall, and a second branch fixed to the main face 42 of the interior panel (not shown);
- first thermal coupling device 56 having a first branch 60 fixed, and in direct thermal contact with, another part of the rectilinear thermal transfer device 52 located on the second zone 48 of the north wall, and a second branch 62 fixed to the opposite main face 44 of the inner panel (not shown in Figure 6);
- first thermal coupling device 56 having a first branch 60 fixed, and in direct thermal contact with, a part of the rectilinear thermal transfer device 54 located on the first zone 46 of the south wall 32, and a second branch fixed to the main face 42 of the inner panel (not shown in Figure 6);
- first thermal coupling device 56 ' having a first branch 60 fixed, and in direct thermal contact with, another part of the rectilinear thermal transfer device 54 located on the second zone 48 of the south wall, and a second branch 62 fixed to the opposite main face 44 of the interior panel (not shown in Figure 6).
- the supporting structure for a space vehicle comprises several assemblies as illustrated in FIG. 6. These assemblies are arranged one beside the other.
- the space vehicle comprising a supporting structure according to this second embodiment is lighter than the space vehicle according to the first embodiment.
- the supporting structure 41 for a space vehicle comprises assemblies as illustrated in FIG. 4 on transverse portions of the supporting structure (namely on transverse portions of the North wall, of the interior panel and of the South wall) and of assemblies such illustrated in FIG. 6 on other transverse portions of the supporting structure.
- the supporting structure for a space vehicle according to a third embodiment is identical to the supporting structure for a space vehicle according to the second embodiment except for the fact that it comprises intermediate spaces on which there is no device. thermal coupling.
- the supporting structure for a space vehicle according to the third embodiment has not been shown in full and will not be described in full. Only the heat transfer devices 52, 54 and the thermal coupling devices of the supporting structure for a space vehicle according to this third embodiment will be described.
- the supporting structure 41 according to the third embodiment comprises:
- first thermal coupling device 56 having a first branch 60 fixed, and in direct thermal contact with, a part of the rectilinear thermal transfer device 52 located on the second zone 48 of the north wall, and a second branch fixed to the main face 42 of the interior panel (not shown in FIG. 7);
- first thermal coupling device 56 having a first branch 60 fixed, and in direct thermal contact with, a part of the rectilinear thermal transfer device 54 located on the first zone 46 of the south wall, and a second branch fixed to the face opposite main 44 of the inner panel (not shown in Figure 7).
- the supporting structure 41 comprises both assemblies such as illustrated in Figure 4, assemblies such as illustrated in Figure 6 and assemblies such as illustrated in Figure 7.
- the present invention also relates to a method of mounting a supporting structure for a space vehicle in accordance with the description above. Referring to Figure 12, the mounting method according to the invention begins with a step 100 illustrated in Figure 13, during which heat transfer devices 52,
- an interior panel 40 is attached to the North wall 30 and to the South wall 32.
- the interior panel 40 is attached between the North wall 30 and the South wall 32 and perpendicular to them. this.
- the North Wall 30, the South Wall 32, and the Interior Wall 40 are shaped like an "H".
- the first thermal coupling devices 56, 56 ' are fixed to the interior panel 40 and to the North wall 30.
- the first branch 60 of the first devices 56, 56' is mounted to bear against the North wall 30.
- the first branch 60 of certain first devices 56 is attached to, and in direct thermal contact with, a part of the heat transfer devices 52 located on a first zone 46 of the north wall 30.
- the second branch 62 of the first thermal coupling devices is attached to the main face 42 of the interior panel 40.
- the first branch 60 of other first devices 56 ' is fixed to, and in direct thermal contact with, a part of the heat transfer devices 52 located on a second zone 48 of the north wall 30.
- the second branch 62 of the first coupling devices thermal is attached to the opposite main face 44 of the interior panel 40.
- second thermal coupling devices 58, 58 ' are fixed to the south wall 32 and to a part of the first thermal coupling devices 56, 56'.
- the first branch 64 of the second devices 58, 58 ′ is mounted to bear against the south wall 32.
- the first branch 64 of certain second thermal coupling devices 58 is attached to, and is in direct thermal contact with, a portion of the heat transfer devices 54 located on a first area 46 of the south wall 32.
- the second branch 66 of the second devices 58 is attached to, and is in direct thermal contact with, a portion of the first thermal coupling devices 56.
- the first branch 64 of other second devices 58 ' is attached to a portion of the heat transfer devices 54 located on a second area 48 of the south wall 32.
- the second branch 66 of the second devices 58 is fixed to a part of the first thermal coupling devices 56 '.
- electronic equipment 50 are fixed to the north wall 30, to the interior panel 40 and to the south wall 32.
- electronic equipment 50 is fixed against the first branches 60 of the first thermal coupling devices, against the second branch 66 of the second thermal coupling devices and against a part of the second branch 62 of the first thermal coupling devices.
- a larger number of electronic equipment 50 can be attached to the supporting structure according to the invention.
- the electronic equipment is attached to the thermal coupling devices 56, 58, there is no "wasted" space intended only for the thermal coupling devices 92, 93, as in the supporting structures of the space vehicles of the state of the art.
- This wasted space includes the side edges 90 illustrated in Figure 9.
- the electronic equipment 50 are connected by electrical connections 91, 94. During this step, all of the electrical connections 91, 94 are made. Thus, the electronic equipment 50 attached to the same wall or to the same interior panel are connected by electrical connections 91. The electronic equipment 50 attached to different walls are electrically connected and the electronic equipment 50 attached to the interior panel 40 are electrically connected. electronic equipment attached to the North wall and / or the South wall, by electrical connections 94.
- the H-shaped supporting structure of the space vehicle facilitates accessibility to the wall and to the interior panel and allows a large number of electronic equipment 50 to be mounted very quickly and to be connected by electrical connections.
- the assembly method can optionally include a step 112 illustrated in FIG. 18.
- an electrical connection 95 is made between an electronic device 50 fixed on the main face 42 of the interior panel and an electronic device 50 fixed on. the opposite main face 44 of the interior panel.
- This electrical connection 95 passes through a through hole 98 pre-existing in the interior panel 40.
- the third side wall 22 and the fourth side wall 24 are attached to the first side wall 30 and the second side wall 32 so that the interior panel 40 is positioned equidistant from the third side wall 30 and the second side wall. fourth side wall 40.
- the mounting method does not include a step 106.
- the electronic equipment items 50 are attached directly to the entire surface of the first coupling devices 56, 56 ′ as well as on heat transfer devices 54.
- the transfer devices 52, 54 are integrated into the panels of the North and South walls and the first coupling devices 56 are attached directly to the North and South walls.
- all or part of the heat pipes used to produce the supporting structure are heat pipes without side edges. These heat pipes are described in the patent application published under the number FR 3,089,957. Such heat pipes are illustrated in FIG. 20. These heat pipes are different from conventional heat pipes. In particular, they do not have wide side edges. A typical heat pipe is shown in Figure 21.
- a conventional heat pipe is mounted on a wall of a satellite, it is necessary to know before step 104 the exact position of each electronic equipment item while the fixing of the electronic equipment is only implemented at the step 106. Indeed, the exact position of each electronic equipment item must be known in order to make holes 214 in the lateral edges of the heat pipe and in the interior panel 40 to allow the electronic equipment 200 to be fixed by screws 212.
- step 104 it is possible to define before step 104 or even before step 100 standard positions for the heat pipes in the structure. This makes it possible to define equipment installation zones with a maximum thermal rejection capacity defined in advance.
- the supporting structure illustrated in FIG. 2 comprises three zones of seven heat pipes each. The number of heat pipes actually installed can be adjusted just before step 104.
- the total rejection capacity is defined by the height of the North and South walls and by the height of the interior panel 40. It is therefore possible to manufacture in advance structures of determined height equipped with heat and ready for the integration of electronic equipment. 50, in step 106 which reduces the time between the design and the manufacture of the satellite.
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Connection Of Plates (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1915561A FR3105178B1 (fr) | 2019-12-24 | 2019-12-24 | Structure porteuse pour véhicule spatial et procédé de montage d’une structure porteuse pour véhicule spatial |
PCT/FR2020/052613 WO2021130457A1 (fr) | 2019-12-24 | 2020-12-23 | Structure porteuse pour véhicule spatial et procédé de montage d'une structure porteuse pour véhicule spatial |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4081457A1 true EP4081457A1 (fr) | 2022-11-02 |
Family
ID=71111479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20851224.4A Pending EP4081457A1 (fr) | 2019-12-24 | 2020-12-23 | Structure porteuse pour véhicule spatial et procédé de montage d'une structure porteuse pour véhicule spatial |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230040229A1 (fr) |
EP (1) | EP4081457A1 (fr) |
FR (1) | FR3105178B1 (fr) |
WO (1) | WO2021130457A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5806803A (en) * | 1995-11-30 | 1998-09-15 | Hughes Electronics Corporation | Spacecraft radiator cooling system |
US5823477A (en) * | 1995-12-22 | 1998-10-20 | Hughes Electronics Corporation | Device and method for minimizing radiator area required for heat dissipation on a spacecraft |
US5735489A (en) * | 1995-12-22 | 1998-04-07 | Hughes Electronics | Heat transport system for spacecraft integration |
US6776220B1 (en) * | 1999-08-19 | 2004-08-17 | Space Systems/Loral, Inc | Spacecraft radiator system using crossing heat pipes |
US6292053B1 (en) * | 1999-11-10 | 2001-09-18 | Lucent Technologies Inc. | Power amplifier system |
US6478258B1 (en) * | 2000-11-21 | 2002-11-12 | Space Systems/Loral, Inc. | Spacecraft multiple loop heat pipe thermal system for internal equipment panel applications |
US9889951B1 (en) * | 2013-02-12 | 2018-02-13 | Lockheed Martin Corporation | Spacecraft east-west radiator assembly |
FR3030458B1 (fr) * | 2014-12-18 | 2017-01-27 | Airbus Defence & Space Sas | Engin spatial |
JP6644132B2 (ja) * | 2016-03-31 | 2020-02-12 | 三菱電機株式会社 | ヒートパイプパネルを用いた放熱装置 |
FR3089957B1 (fr) | 2018-12-18 | 2020-12-18 | Airbus Defence & Space Sas | Procédé de fixation d’un équipement dissipatif, mur de véhicule spatial et véhicule spatial |
-
2019
- 2019-12-24 FR FR1915561A patent/FR3105178B1/fr active Active
-
2020
- 2020-12-23 US US17/788,578 patent/US20230040229A1/en active Pending
- 2020-12-23 WO PCT/FR2020/052613 patent/WO2021130457A1/fr unknown
- 2020-12-23 EP EP20851224.4A patent/EP4081457A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
US20230040229A1 (en) | 2023-02-09 |
FR3105178A1 (fr) | 2021-06-25 |
WO2021130457A1 (fr) | 2021-07-01 |
FR3105178B1 (fr) | 2024-03-15 |
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