EP3080524A1 - Repartiteur de fluide, dispositif de conditionnement thermique de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation correspondants - Google Patents
Repartiteur de fluide, dispositif de conditionnement thermique de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation correspondantsInfo
- Publication number
- EP3080524A1 EP3080524A1 EP14809394.1A EP14809394A EP3080524A1 EP 3080524 A1 EP3080524 A1 EP 3080524A1 EP 14809394 A EP14809394 A EP 14809394A EP 3080524 A1 EP3080524 A1 EP 3080524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- rib
- distributor
- longitudinal axis
- fluid distributor
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 356
- 238000010438 heat treatment Methods 0.000 title claims abstract description 107
- 238000004378 air conditioning Methods 0.000 title claims abstract description 13
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 238000009987 spinning Methods 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 239000012809 cooling fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding means
- F24H9/0063—Guiding means in air channels
Definitions
- Fluid distributor, thermal fluid conditioning device for a motor vehicle and corresponding heating and / or air conditioning device for a motor vehicle and corresponding heating and / or air conditioning device
- the invention relates to a fluid distributor for a thermal fluid conditioning device, such as an electric fluid heating device for a motor vehicle.
- a thermal fluid conditioning device such as an electric fluid heating device for a motor vehicle.
- the invention applies more particularly to heating and / or air conditioning apparatus for motor vehicles comprising such a heating device.
- the heating of the air for heating the passenger compartment is ensured by the passage of a flow of air through a heat exchanger, more precisely by a heat exchange between the air flow and a fluid .
- This is usually the coolant in the case of a heat engine.
- Such a heating mode may be unsuitable or insufficient to ensure heating of the passenger compartment of a motor vehicle, as well as demisting and defrosting.
- a fast and efficient heating mode of the passenger compartment of the vehicle is desirable, in particular to ensure a warming of the passenger compartment or defrosting or demisting of the vehicle before use in very cold environment or when a very fast climb temperature is desired.
- the heating function is no longer performed by the circulation of the cooling fluid in the heat exchanger.
- this heating mode may also be inadequate or insufficient to ensure rapid and efficient heating of the passenger compartment of the vehicle.
- an air conditioning loop operating in a heat pump mode.
- the air conditioning loop conventionally to cool a flow of air with a refrigerant is in this case, used to heat the air flow.
- this mode of heating too may be inappropriate or insufficient.
- the performance of the heat pump air conditioning loop depends on the external climatic conditions. For example, when an outside air temperature is too low, this air can not be used as a source of thermal energy.
- a known solution is to add to the heat exchanger or the water circuit or the air conditioning loop, an additional electric heating device.
- the additional electric heating device may be adapted to heat upstream the fluid, such as the cooling fluid for the heat engine, or the water of the heating water circuit of the passenger compartment of the electric vehicle or the cooling fluid. of the air conditioning loop.
- the fluid such as the cooling fluid for the heat engine, or the water of the heating water circuit of the passenger compartment of the electric vehicle or the cooling fluid. of the air conditioning loop.
- the additional electric heating device comprises one or more heating modules in contact with the fluid to be heated.
- a heating module may comprise a core and a heating element in the form of a cylindrical envelope surrounding the core, in order to define a fluid guide circuit between the core and the cylindrical envelope.
- the cylindrical envelope is therefore the source of thermal energy.
- a heating element has electric heating means, for example, one or more heating resistors made by screen printing in the form of resistive tracks on the outer surface of the heating element.
- a known solution is to generate a helical movement of the fluid flowing in the guide circuit.
- the heat exchange is thus increased between the heating element, for example in the form of a cylindrical envelope, and the fluid circulating inside this cylindrical envelope.
- the core has on its outer surface a substantially helical groove. Such a nucleus is therefore of complex realization.
- the fluid may not be distributed homogeneously in the guide circuits of the heating modules.
- the flow rate of the fluid in each heating module may be different resulting in a temperature difference between the two heating modules of the electric heater.
- the invention therefore aims to provide improved thermal efficiency with a small temperature difference between the two thermal modules of a thermal fluid conditioning device and a low pressure drop.
- the subject of the invention is a fluid distributor for a device for thermal conditioning of a fluid for a motor vehicle, comprising at least a first thermal module and a second thermal module, the thermal modules respectively having a substantially general shape. cylindrical and respectively comprising a fluid guide circuit,
- a first fluid passage of substantially circular shape capable of being arranged in fluid communication with the fluid guide circuit of the first thermal module
- a second fluid passage of substantially circular shape capable of being arranged in fluid communication with the fluid guide circuit of the second thermal module, such that the orifice, the first fluid passage and the second fluid passage are aligned along the longitudinal axis, and
- the fluid distributor is used to balance the temperature of the thermal modules by varying the distribution of the fluid in the guide circuits to heat or cool the fluid.
- the adjustment zones in the extension of the end edges of the rib allow, according to their positioning relative to the longitudinal axis in which the fluid flows in the distributor, to distribute more or less fluid to the guiding circuits, and thus to play on the flow of fluid in each thermal module.
- the rib is shaped for a distribution of the fluid with a similar flow rate in each heating module.
- the orifice is arranged closer to the first fluid passage than the second fluid passage, and the rib is arranged at the periphery of the first fluid passage closest to the orifice.
- the rib thus makes it possible to play on the flow of fluid towards the second fluid passage, and in response to the flow of fluid towards the first fluid passage.
- the fluid distributor comprises a first rib arranged at the periphery of the first fluid passage, and a second rib arranged at the periphery of the second fluid passage; the first rib being distinct from the second rib.
- the shape discontinuity of the ribs delimiting the two fluid passages makes it possible to adjust in a simple manner the distribution of fluid flow between the two fluid passages by playing on the end edges of at least one of the ribs, in particular rib defining the fluid passage closest to the fluid inlet.
- the fluid distributor may further comprise one or more of the following features, taken separately or in combination:
- an end edge of the rib is substantially aligned with the longitudinal axis of the fluid distributor and the other end edge is extended by an adjustment zone extending over an angle
- the rib has an adjustment zone respectively in the extension of the two end edges extending from the longitudinal axis of the fluid distributor on an angle with respect to the longitudinal axis of the fluid distributor,
- a first adjustment zone extending from the longitudinal axis of the fluid distributor on an angle of the order of 4 ° to 5 ° and
- the second fluid passage has an open circumference and the associated rib has a substantially circular arc shape.
- the invention also relates to a device for thermal conditioning of a fluid for a motor vehicle, comprising:
- thermo modules respectively comprising a fluid guide circuit
- the fluid housing comprises a fluid distributor as previously described.
- the device may further comprise one or more of the following features, taken separately or in combination:
- the fluid casing is a fluid inlet casing
- the fluid distributor is attached to the fluid casing
- the fluid distributor is made in one piece with the fluid casing
- said device is arranged in a heating circuit of the passenger compartment of said vehicle.
- the invention also relates to a heater and / or air conditioning for a motor vehicle, characterized in that it comprises at least one thermal conditioning device as defined above.
- FIG. 1 represents an electric fluid heating device for a motor vehicle
- FIG. 2 represents an exploded view of the electric heating device of FIG. 1,
- FIG. 3 represents two heating modules and a fluid casing of the heating device of FIG. 1,
- FIG. 4 shows the heating modules and the fluid housing and a fluid distributor according to the invention in the unassembled state
- FIG. 5 is a perspective view of the heating modules and of the fluid housing in which the fluid distributor is assembled
- FIG. 6 is a sectional view of a first exemplary embodiment of the fluid distributor
- FIG. 7 is a sectional view of a second exemplary embodiment of the fluid distributor.
- FIG. 8 is a schematic enlarged view of a portion of the fluid distributor according to a third embodiment.
- FIG. 1 represents a thermal conditioning device 1 such as an electric fluid heating device for a motor vehicle for a heating and / or air conditioning device.
- a thermal conditioning device 1 such as an electric fluid heating device for a motor vehicle for a heating and / or air conditioning device.
- the electric heating device 1 is for example an additional heating device for heating a fluid arranged in a heating circuit of a vehicle fluid for heating the passenger compartment.
- the electric heating device 1 is arranged upstream of a heat exchanger of an air conditioning loop capable of operating in a heat pump, so as to heat the refrigerant.
- the electric heating device 1 is arranged upstream of a heat exchanger using the cooling fluid of a heat engine as heat transfer fluid.
- the invention can also be applied to a device for cooling a fluid.
- the electric heater 1, shown exploded in FIG. 2, includes:
- Control means 5 for controlling the power supply of the heating modules 3a, 3b.
- the electric heater 1 shown may further comprise:
- a fluid inlet such as a fluid inlet box 9
- a fluid outlet such as a fluid outlet housing 10.
- the heating modules 3a, 3b may be identical.
- the two heating modules 3a, 3b are according to the illustrated embodiment arranged side by side substantially parallel.
- the side-by-side arrangement makes it possible to reduce the size of the heating device 1 in the longitudinal direction.
- this arrangement has a low heating inertia and a low pressure drop.
- the electric heater comprises more than two heating modules as needed.
- a heating module 3a, 3b comprises, according to the embodiment illustrated in FIGS. 2 to 5, a core 11 and a heating element 13.
- a heating element 13 is made in the form of an envelope surrounding the body of the core 11.
- the core 11 and the heating envelope 13 are for example substantially cylindrical and extend along a longitudinal axis.
- the two heating modules 3a, 3b may have a cylindrical shape with the same diameter.
- the core 11 and the heating jacket 13 may be concentric.
- a heating module 3a, 3b therefore has a generally cylindrical general shape defined by the heating envelope 13.
- the core 11 and the heating jacket 13 define a guide circuit for the fluid to be heated, such as liquid.
- the guide circuit is defined around the surface external of the core body 11, it is therefore outside the core 11 and inside a heating envelope 13.
- the outer surface of the body of the core 11 and the inner surface of the heating envelope 13 associated define a circulation volume of the fluid to be heated around the core 11.
- the fluid from the fluid inlet housing 9 can flow in this circulation volume, then to the outlet housing 10.
- each heating module 3a, 3b comprises a fluid guiding circuit between the core 11 and the heating envelope 13 respectively.
- the control means 5 are controlled by the control means 5 so as to heat the fluid by heat exchange between the heating envelopes 13 and the fluid flowing in the guide circuit.
- a heating envelope 13 has at least one electric heating means such as a heating resistor.
- This heating resistor can be made in the form of a resistive track.
- the resistive tracks are for example made by screen printing on the outer surface of the heating jacket 13, that is to say on the surface opposite to the inner surface of the heating envelope 13 facing the core 11. The resistive tracks are therefore out of the fluid guide circuit to be heated.
- the heat produced by the resistor is directly transmitted to the fluid to be heated through the wall of the corresponding heating jacket 13, which minimizes heat losses and reduces the thermal inertia of the device. when heated quickly.
- the control means 5 controls the heating envelopes 13a, 13b by controlling the supply of the heating resistors, made for example in the form of resistive tracks.
- the control means 5 comprises, for this purpose, electronic and / or electrical power components such as at least one power switch, for example a power transistor, adapted to allow or prohibit the supply of the heating track.
- the opening and / or closing of the power switch can be controlled by a microcontroller.
- the control means 5 of the heating element 13a, 13b comprises, according to the example illustrated in FIG. 2, an electrical circuit support 14, such as a printed circuit board (or PCB in English for "Printed circuit board ").
- This electrical circuit support 14 carries the electronic and / or electrical components of the control means 5. These electronic and / or electrical components may for example also include electrical connectors connecting the heating resistors to the power switch, connectors high voltage power supply and low voltage power connector and data bus. Moreover, in order to allow the admission or the evacuation of the fluid in a heating module 3a, 3b, the core 11 of the heating module 3a, 3b may have a fluid inlet or outlet end 15 fluidly communicating with the fluid inlet 9 or fluid outlet box 10 and the guide circuit between the core 11 and the associated casing 13. The input and output ends may be similar.
- the cores 11 of the heating modules 3a, 3b have, according to the example described respectively, two longitudinally opposite ends: an inlet end and an outlet end respectively connected to the fluid inlet box 9 and to the fluid outlet housing 10.
- the fluid inlet and outlet housings 9, 10 are for example connected symmetrically at the two opposite ends of the heating modules 3a, 3b.
- At least one of the fluid housings 9, 10 may have a substantially parallelepiped shape with two large opposite sides and two opposite small sides.
- the fluid inlet housing 9 has a substantially parallelepipedal shape comprising a base 17a open on one face and a cover 17b closing the fluid inlet housing 9.
- the control means 5 is for example arranged between the base 17a and the cover 17b of the fluid inlet box 9.
- a fluid intake manifold 19 can be provided in the housing 9. a fluid inlet.
- the intake manifold 19 is for example arranged protruding on the fluid inlet housing 9 and is common for supplying fluid to the two heating modules 3a, 3b.
- the intake manifold 19 extends according to the example illustrated radially with respect to the longitudinal axis A of the heating modules 3a, 3b. According to the illustrated example, the intake manifold 19 is arranged on a short side of the base 17a of the fluid inlet housing 9, and substantially perpendicular to this small side.
- the fluid outlet box 10 may also have a substantially parallelepipedal shape provided with a projecting tubing 20 of fluid outlet of the electric heater 1, intended to be connected to a heated fluid circuit.
- At least one of the fluid inlet and outlet housings 9, 10 comprises a fluid distributor 21 which is better visible in FIGS. 4 and 5.
- the evacuation of the fluid having circulated in the guide circuits of the heating modules 3a, 3b can be free in the outlet housing 10 without a fluid distributor.
- the fluid distributor 21 may be an insert or be made in one piece with the housing 9.
- the fluid inlet housing 9 may include a housing 23 for the fluid distributor 21 and an opening 25 for introducing the fluid distributor 21 into housing 23.
- the fluid distributor 21 has a shape complementary to the shape of the housing 23 in the fluid inlet housing 9.
- the fluid distributor 21 may extend along a longitudinal axis B schematized in FIGS. 6 to 8.
- the longitudinal axis B of the fluid distributor 21 is according to the embodiment described substantially perpendicular to the longitudinal axis A of the modules of FIG. heater 3a, 3b.
- the fluid flows in the fluid distributor 21 in a direction of flow substantially parallel to the longitudinal axis B of the fluid distributor 21.
- the fluid distributor 21 comprises a first fluid passage 27a communicating with the guide circuit of the first heating module 3a, and a second fluid passage 27b communicating with the guide circuit of the second heating module 3b.
- the fluid inlet box 9 is assembled with the heating modules 3a, 3b so that the first fluid passage 27a is arranged opposite the inlet or outlet end 15 of the first module. corresponding heater 3a, and that the second fluid passage 27b is arranged vis-à-vis the inlet or outlet end 15 of the corresponding second heating module 3b.
- the fluid passages 27a, 27b respectively have a shape corresponding to the shape of the inlet or outlet end 15, of the corresponding heating module 3a, 3b.
- At least one fluid passage for example the first fluid passage 27a associated with the first heating module 3a, is in the form of an opening, for example of substantially circular shape.
- the other fluid passage in this example the second fluid passage 27b associated with the second heating module 3b, may have a substantially circular shape whose circumference is open on a circular arc. This open form is closed by a wall 29 of the housing 23 during assembly of the fluid distributor 21 in the housing 9 of the heater 1 (see Figure 5).
- the fluid passages 27a, 27b form cavities of the housing 9.
- the base 17a of the fluid inlet housing 9 is provided with a first cavity and a second cavity for receiving the inlet or outlet ends.
- Respective heating modules 3a, 3b, and the first fluid passage 27a is arranged opposite and in fluid communication with the first cavity of the fluid inlet housing 9.
- the second fluid passage 27b is arranged opposite and in fluid communication with the second cavity of the fluid inlet box 9.
- the first and second cavities (not visible in the figures) provided in the fluid inlet housing 9 are for example substantially circular.
- the fluid distributor 21 includes a fluid inlet port 31 communicating with the inlet manifold 19 of the fluid inlet housing 9 to admit the fluid into the fluid distributor 21 of the inlet housing
- the orifice 31 is arranged in this example radially with respect to the longitudinal axis A of the heating modules 3a, 3b.
- tubing 19 is arranged in line with the orifice 31 of the fluid distributor 21 in the casing 9.
- the orifice 31, the first fluid passage 27a and the second fluid passage 27b are aligned along the longitudinal axis B of the fluid distributor 21.
- the orifice 31, the first fluid passage 27a, and the second fluid passage 27b are arranged in this example so that the orifice 31 is closer to the first fluid passage 27a than to the second fluid passage 27b. .
- the fluid distributor 21 further comprises at least one rib 33a, 33b arranged at the periphery of a fluid passage 27a, 27b associated partially delimiting the associated fluid passage 27a, 27b.
- the rib 33a, 33b is not arranged over the entire periphery of the associated fluid passage.
- the rib or ribs 33a, 33b make it possible to distribute the fluid towards the guiding circuits of the two heating modules 3a, 3b, it is in particular the function of the rib arranged around the fluid passage that is closest to the orifice 31 of fluid inlet.
- the fluid inlet orifice 31 is arranged closer to the first fluid passage 27a than to the second fluid passage 27b, and a rib 33a is arranged at the periphery of the first fluid passage 27a. close to the orifice 31.
- a first rib 33a is arranged partially around the first fluid passage 27a and a second rib 33b is arranged partially around the second fluid passage 27b.
- the first rib 33a is distinct from the second rib 33b, so that there is no continuity of shape of the ribs 33a, 33b partially delimiting the two fluid passages 27a, 27b.
- the first rib 33a partially around the first fluid passage 27a, prevents the entire fluid from moving towards the first fluid passage 27a closest to the orifice 31 through which the fluid is admitted into the fluid. fluid inlet housing 9 for example, by deflecting the path of a portion of the fluid to direct it to the other fluid passage 27b further away from the inlet 31 of the fluid.
- the first rib 33a thus makes it possible to distribute a certain quantity of fluid towards the second fluid passage 27b the remainder of fluid flowing in the first fluid passage 27a.
- At least one of the ribs 33a, 33b associated with the fluid passages 27a, 27b is, for example, shaped to generate a spinning movement of the fluid before the fluid enters the guide circuit of the corresponding heating module 3a, 3b.
- the rib 33a, 33b may have at least a substantially curved portion to generate the spinning of the fluid.
- At least one of the ribs 33a, 33b arranged at the periphery of an associated fluid passage 27a, 27b has a semicircle shape delimited by the longitudinal axis B of the fluid distributor 21.
- the first rib 33a arranged at the periphery of the first fluid passage 27a in the form of a substantially circular opening can present in this case a semi-circular shape, that is to say in semicircle shape, or otherwise substantially in "C" form.
- the rib 33a is not present all around the circumference of the circular opening.
- the end edges 35, 37 of the rib 33a are substantially aligned with the longitudinal axis B of the fluid distributor 21.
- the second rib 33b associated with the second fluid passage 27b with an open circumference may have a substantially circular arc shape.
- the second rib 33b is present only on a portion of the circumference of the second fluid passage 27b, here substantially in a circular arc.
- the curved shapes of the ribs 33a, 33b make it possible naturally to create a spinning movement of the fluid, before the arrival of the fluid in the guiding circuit between the core 11 and the cylindrical casing 13, without the contribution of materialized propellers. for example in the form of a helical groove on the outer surface of the core 11.
- the fluid dispensed to a guiding circuit follows a movement around the core 11, keeping the spinning generated upstream, and thus follows a helical movement to increase the heat transfer between the heating envelope 13 and the fluid.
- Each rib 33a, 33b has two end edges.
- the first rib 33a has two end edges 35, 37 and the second rib 33b has two end edges 39, 41.
- the two end edges 35, 37 of the first rib 33a in this example are arranged substantially opposite to the longitudinal axis B of the fluid distributor 21.
- the first end edge 35 of the first rib 33a is arranged on the side of the orifice 31 while the second end edge 37 is arranged on the side of the second fluid passage 27b.
- At least one of the ribs 33a, 33b, in the example described the first rib 33a has at least one adjustment zone Z, Z ls Z 2 (see FIGS. 6 to 8) in the extension of an edge 35, 37.
- the adjustment zone Z, Z i, Z 2 extends over an angle ⁇ , ai, a 2 of the order of 0 ° to 25 ° with respect to the longitudinal axis B of the fluid distributor 21.
- the adjustment zone Z, Z i, Z 2 extends over an angle of 0 °
- the end edge 35, 37 of the rib 33a is aligned along the longitudinal axis B of the distributor fluid 21, and there is no addition of material with respect to the longitudinal axis B of the fluid repertor 21.
- an end edge 35, 37 of the rib 33a is substantially aligned with the longitudinal axis B of the fluid distributor 21 and the other end edge 35, 37 is extended by an area of Z adjustment extending over an angle a.
- At least one of the end edges has material extending from the longitudinal axis B of the fluid distributor 21 forming an arc of a circle at an angle ⁇ relative to the longitudinal axis B of the fluid distributor 21.
- This extension of at least one end edge with respect to the longitudinal axis B of the fluid distributor 21 makes it possible to adjust the quantity of fluid distributed towards the second fluid passage 27b and thus also towards the first fluid passage 27a. , in order to manage the flow of fluid in the guiding circuit of the first and in the guiding circuit of the second heating module 3a, 3b.
- an end edge of the first rib 33a may be aligned with the longitudinal axis B of the fluid distributor 21 and the other end edge may have material extending from the longitudinal axis B of the fluid distributor 21 over an angular distance a with respect to the longitudinal axis B of the fluid distributor 21.
- FIG. 6 it is the second end edge 37 of the first rib 33a that is aligned with the longitudinal axis B of the fluid distributor 21 and the first end edge 35 present. an adjustment zone Z in the extension of the first end edge 35 extending in an arc of a circle at a non-zero angle ⁇ from the longitudinal axis B of the fluid distributor 21.
- an end edge 39 may be aligned with the direction of fluid flow and the other end edge 41 may be offset from the direction of flow. of the fluid flow.
- FIG. 7 it is the first end edge 35 of the first rib 33a which is aligned with the longitudinal axis B of the fluid distributor 21 and the second end edge 37 has an adjustment zone Z in the extension of the second end edge 37 extending in an arc of a circle at a non-zero angle ⁇ from the longitudinal axis B of the fluid distributor 21.
- the two end edges 35, 37 of the first rib 33a are extended by an area of respective ls Z Z 2 fit each extending over an angle i, a 2 with respect to the longitudinal axis B of the fluid distributor 21.
- the angles ai, a 2 may be substantially equal or different depending on the application.
- the rib 33a has in the extension of the first end edge 35, a first adjustment zone extending from the longitudinal axis B of the fluid distributor 21 over an angle ai of the order of 4 ° to 5 ° and in the extension of the second end edge 37 a second adjustment zone Z 2 extending from the longitudinal axis B of the fluid distributor 21 over an angle a ' 2 of the order of 22 ° to 23 °.
- the first adjustment zone Z ⁇ in the extension of the first end edge 35 of the first rib 33a has material extending over a lateral distance of the order of 1 mm from the longitudinal axis B of the fluid distributor 21 and the second adjustment zone Z 2 in the extension of the second end edge 37 has material over a lateral distance of the order of 5mm to from the longitudinal axis B of the fluid distributor 21.
- one of Z adjustment zones, Z ls Z 2 in the extension of one of the end edges is at a greater distance from the longitudinal axis B of the fluid distributor 21 as the other end edge.
- the flow rate of fluid in the second fluid passage 27b can be adjusted and accordingly the flow of fluid in the first fluid passage 27a can also be adjusted.
- angles between 0 and 45 ° are chosen.
- the fluid distributor 21 may further comprise at least one wall 43, 45 in the continuity of a rib 33a, 33b.
- a first wall 43 is arranged substantially parallel to the longitudinal axis B of the fluid distributor 21.
- the first wall 43 extends for example from the first rib 33a to the periphery of the first fluid passage 27a associated with the first heating module 3a to the second fluid passage 27b.
- a second wall 45 may be arranged substantially obliquely to the longitudinal axis B of the fluid distributor 21.
- the second wall 45 may extend from the second fluid passage 27b to the first fluid passage 27a.
- the flow of the fluid is thus effected from the fluid intake manifold 19 of the fluid inlet box 9, then into the fluid distributor 21 upstream of the guide circuits in the direction of flow of the fluid to distribute the fluid in parallel in the guide circuits of the heating modules 3a, 3b, and spring in the fluid outlet housing 10, then through the outlet pipe 20.
- the ribs 33 a, 33 b as previously described favor a homogeneous distribution by adjusting the flow of fluid towards the two fluid passages 27 a, 27 b according to the geometrical positioning of the end edges 35, 37, 39, 41 of the ribs 33 a, 33 b with respect to the longitudinal axis B of the fluid distributor 21 according to which the fluid, in particular a liquid, flows in the fluid distributor 21.
- At least the first rib 33a is shaped for a fluid distribution with a fluid flow similar or identical in the two fluid passages 27a, 27b and subsequently in the guide circuits of the associated heating modules 3a, 3b.
- the similar fluid flow rate in the two guiding circuits makes it possible to maintain a substantially identical operating temperature between the two heating modules 3a, 3b, in particular a temperature difference of less than 3 ° C. is desired.
- the curved shape of the ribs at the periphery of the fluid passages of the fluid distributor in the input box makes it possible to generate a spinning movement of the fluid to be distributed in the guiding circuits.
- the fluid Due to the spinning of the fluid generated before the arrival in the guiding circuits inside the heating module 3a, 3b, the fluid follows a substantially helical path without requiring the presence of a helical groove or any other arranged means on the outer surface of the core 11. In fact, the fluid is constantly projected onto the inner surface of the cylindrical casing 13. The spinning movement generated upstream of the guiding circuits continues along the cores 11 of the heating modules 3a, 3b.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1362328A FR3014550B1 (fr) | 2013-12-10 | 2013-12-10 | Repartiteur de fluide, dispositif de conditionnement thermique de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation correspondants |
PCT/EP2014/077013 WO2015086579A1 (fr) | 2013-12-10 | 2014-12-09 | Repartiteur de fluide, dispositif de conditionnement thermique de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation correspondants |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3080524A1 true EP3080524A1 (fr) | 2016-10-19 |
EP3080524B1 EP3080524B1 (fr) | 2020-08-12 |
Family
ID=50424455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14809394.1A Active EP3080524B1 (fr) | 2013-12-10 | 2014-12-09 | Répartiteur de fluide, dispositif de conditionnement thermique de fluide pour véhicule automobile et appareil de chauffage et/ou de climatisation correspondant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3080524B1 (fr) |
JP (1) | JP6363198B2 (fr) |
CN (1) | CN105980789B (fr) |
FR (1) | FR3014550B1 (fr) |
WO (1) | WO2015086579A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63162317A (ja) * | 1986-12-26 | 1988-07-05 | Nippon Denso Co Ltd | 車両用空調装置 |
CN2037204U (zh) * | 1988-07-10 | 1989-05-10 | 赵天鹿 | 洗浴热水器 |
FR2757618B1 (fr) * | 1996-12-23 | 1999-03-05 | Valeo Climatisation | Echangeur thermique comportant un insert d'alimentation d'entree ou de sortie, notamment echangeur thermique de vehicule automobile |
DE59712234D1 (de) * | 1997-08-29 | 2005-04-21 | David & Baader Dbk Spezfab | Durchlauferhitzer |
US8544454B2 (en) * | 2006-03-16 | 2013-10-01 | Behr Gmbh & Co. Kg | Heat exchanger for a motor vehicle |
JP2012141096A (ja) * | 2010-12-28 | 2012-07-26 | Mitsubishi Heavy Ind Ltd | 温水ヒータの製造方法、これにより製造された温水ヒータ |
FR2979692B1 (fr) * | 2011-09-06 | 2018-06-15 | Valeo Systemes Thermiques | Dispositif de chauffage electrique pour vehicule automobile, et appareil de chauffage et/ou de climatisation associe |
FR2987314B1 (fr) * | 2012-02-29 | 2014-03-28 | Valeo Systemes Thermiques | Dispositif de chauffage electrique de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation associe |
FR2989034B1 (fr) * | 2012-04-06 | 2014-03-28 | Valeo Systemes Thermiques | Dispositif de chauffage electrique de fluide pour vehicule automobile et procede d'assemblage dudit dispositif de chauffage |
CN203132145U (zh) * | 2012-12-07 | 2013-08-14 | 李健 | 液体、流体加热装置 |
-
2013
- 2013-12-10 FR FR1362328A patent/FR3014550B1/fr not_active Expired - Fee Related
-
2014
- 2014-12-09 EP EP14809394.1A patent/EP3080524B1/fr active Active
- 2014-12-09 CN CN201480075252.9A patent/CN105980789B/zh active Active
- 2014-12-09 JP JP2016538084A patent/JP6363198B2/ja active Active
- 2014-12-09 WO PCT/EP2014/077013 patent/WO2015086579A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3080524B1 (fr) | 2020-08-12 |
JP2016539851A (ja) | 2016-12-22 |
JP6363198B2 (ja) | 2018-07-25 |
FR3014550B1 (fr) | 2015-12-18 |
CN105980789B (zh) | 2019-06-25 |
FR3014550A1 (fr) | 2015-06-12 |
WO2015086579A1 (fr) | 2015-06-18 |
CN105980789A (zh) | 2016-09-28 |
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