Ventilation device configured to removably receive an electric heat exchange module

Abstract

The invention relates to a ventilation device for a motor vehicle, comprising an internal housing, at least one access opening to said housing from the outside of said ventilation device. Said internal housing is configured to removably receive an electrical heat exchange module for heat exchange between pulsed air and said module. Said access opening is configured to allow the introduction of said electrical heat exchange module into said housing and to be closed by said electrical heat exchange module when the latter occupies said housing. Figure for abstract: Figure 12

Description

Title of the invention: Ventilation device configured to removably receive an electric heat exchange module Technical field and technological background

[0001] The present invention relates to a ventilation device configured to removably receive an electrical heat exchange module. The invention further relates to an electrical heat exchange module configured to be mounted in the ventilation device according to the invention, as well as a ventilation system comprising the ventilation device and the electrical heat exchange module according to the invention.

[0002] Typically, motor vehicles include a heating, ventilation and air conditioning device. Such a device is also known as HVAC, from the English "Heating, Ventilation and Air Conditioning". The HVAC device includes functions of ventilation, heating and cooling of a passenger compartment of the vehicle for the comfort of the occupants. In particular, for air conditioning, the HVAC device generally includes an evaporator which cools air pulsed by the HVAC device. The evaporator is included in the housing of the HVAC device, but remains associated with a circuit external to the HVAC device in order to fulfill its cooling function. Such an external circuit notably includes a condenser, a compressor, an expansion valve and a motor-fan unit installed in the vehicle.

[0003] However, with a view to obtaining economically affordable electric vehicles, we are seeking to integrate the air conditioning function with the least possible bulk and at lower costs. This is particularly sought after for small vehicles without a license, such as electric quadricycles.

[0004] Patent application publication WO17169376 A1 is known, which discloses an HVAC device in which the air conditioning function is provided by a Peltier module integrated into the HVAC device. The Peltier module is a thermoelectric module in which electrical components are powered to transfer calories from a cold face of the module to a hot face of the latter using a thermoelectric effect. Pulsed air emitted by the HVAC device is then cooled by the cold face of the thermoelectric module. Thanks to the Peltier module, the HVAC device performs an air conditioning function without using the closed circuit previously described. However, in this device the air conditioning function is definitively integrated into the HVAC device and into the vehicle. However, it can be advantageous to use the HVAC device without the air conditioning function.

[0005] An HVAC device is therefore sought which can be modulated so as to have or not have a cooling or heating function. Summary of the invention

[0006] To this end, the invention proposes a ventilation device for a motor vehicle, comprising: i. an internal housing, ii. at least one opening for access to said housing from the outside of said ventilation device, said internal housing being configured to removably receive an electrical heat exchange module for heat exchange between pulsed air and said module; and said access opening being configured to allow the introduction of said electrical heat exchange module into said housing and to be closed by said electrical heat exchange module when the latter occupies said housing.

[0007] The ventilation device according to the invention allows for optional integration of the air conditioning function. Thus, the HVAC device can be initially provided without an air conditioning function, which can then be easily installed in a reversible manner by the vehicle owner or an after-sales service. In particular, the access opening is closed by a hatch, when the housing is without the electrical heat exchange module.

[0008] The invention further relates to an electrical heat exchange module forming an independent unit, configured to be mounted in the internal housing of a ventilation device according to the invention.

[0009] According to one embodiment, the electrical heat exchange module forms an electric radiator configured to heat the air pulsed in said ventilation device, or an electrical cooling module configured to cool the air pulsed in said ventilation device.

[0010] According to one embodiment, the electrical heat exchange module forms an electrical cooling module and comprises at least one thermoelectric module comprising electrical components configured to transfer calories from a cold face of the thermoelectric module to a hot face of said thermoelectric module, said cold face being configured to cool at least part of the pulsed air.

[0011] According to a variant, the electrical heat exchange module comprises a central channel configured to receive a first portion of the pulsed air so as to cool it via the cold face of the thermoelectric module, and a peripheral channel extending around said central channel and configured to receive a second portion of the pulsed air so as to cool the hot face of the thermoelectric module.

[0012] According to a variant, the thermoelectric module is located in a wall separating the central channel and the peripheral channel, the hot face being included in said peripheral channel and the cold face being included in said central channel.

[0013] According to a variant, the peripheral channel is configured so as to direct the second part of the pulsed air in a transverse direction relative to the first part of the pulsed air.

[0014] According to one variant, the peripheral channel forms a ring around said central channel.

[0015] According to one variant, the electrical heat exchange module comprises: i. a first face, intended to receive the pulsed air from the ventilation device; ii. a second face, opposite the first face, intended to deliver the first part of the pulsed air; iii. at least one lateral face, connecting the first face and the second face, configured to expel the second part of the pulsed air and intended to close the at least one access opening of the ventilation device.

[0016] According to a particular variant, the first face comprises a first central opening forming one end of said central channel intended to receive the first portion of the pulsed air, and at least one secondary opening at the periphery of said first central opening, opening into said peripheral channel, so as to deliver the second portion of the pulsed air into the peripheral channel. The second face comprises a second central opening forming one end of said central channel intended to expel the first portion of the cooled pulsed air. And the at least one lateral face comprises a lateral opening opening into said peripheral channel so as to allow the expulsion of the second portion of the pulsed air heated by the hot face of said thermoelectric module.

[0017] According to one variant, the heat exchange module comprises: i. two side faces located opposite each other, configured to close a respective access opening of the ventilation device, and ii. two thermoelectric modules, each facing a respective side face, their cold faces facing each other.

[0018] The invention also relates to a ventilation system comprising a ventilation device according to the invention, and an electrical heat exchange module according to one embodiment, said electrical heat exchange module being mounted in said internal housing and closing said access opening.

[0019] The invention also relates to a ventilation system comprising a ventilation device according to the invention, and an electrical heat exchange module according to one embodiment, said electrical heat exchange module being mounted in said internal housing and closing said access opening. Said ventilation device comprises an air blower, said air blower being located between the electrical heat exchange module and a pulsed air outlet port of the ventilation device. Said system further comprises at least one lateral duct mounted along an external wall of the ventilation device, a first end of the lateral duct extending from said access opening so as to receive an air flow expelled by said electrical heat exchange module and a second end of said lateral duct being located between the pulsed air outlet port of the ventilation system and the air blower.

[0020] According to one embodiment, the ventilation device comprises two access openings located on opposite faces of said ventilation device, each opening being closed by a respective lateral face of said electrical heat exchange module; and the system comprises two lateral conduits corresponding respectively to one of said access openings.

[0021] The invention further relates to an electrical cooling module configured to cool air pulsed in a ventilation device of a vehicle, comprising at least one thermoelectric module comprising electrical components configured to transfer calories from a cold face of the thermoelectric module to a hot face of said thermoelectric module, said cold face being configured to cool at least a portion of the pulsed air. The electrical cooling module comprises: i. a central channel configured to receive a first portion of the pulsed air so as to cool it via the cold face of the thermoelectric module, and ii. a peripheral channel extending around said central channel and configured to receive a second portion of the pulsed air so as to cool the hot face of the thermoelectric module.

[0022] Thus, the electrical cooling module forms an independent device usable in a ventilation device, in particular that according to the invention. The electrical cooling module may have any of the preceding characteristics presented in relation to the electrical heat exchange module forming an electrical cooling module described previously. Brief description of the figures

[0023] The description which follows with reference to the appended drawings, given as non-limiting examples, will make it clear what the invention consists of and how it can be implemented. In the appended figures:

[0024] [Fig-1] [Fig.l] represents an overview of an example of a winding device tilation according to the invention;

[0025] [Fig.2] [Fig.2] represents an exploded view of the example of a ventilation device according to the invention;

[0026] [Fig.3] [Fig.3] represents a detailed view of the example of a ventilation device according to the invention;

[0027] [Fig.4] [Fig.4] represents a side view of the example of a ventilation device according to the invention;

[0028] [Fig.5] [Fig.5] represents an overall view of an example of an electrical heat exchange module according to the invention;

[0029] [Fig.6] [Fig.6] represents an exploded view of the example of an electrical heat exchange module according to the invention;

[0030] [Fig.7] [Fig.7] represents an exploded view of an example of a thermoelectric module;

[0031] [Fig.8] [Fig.8] represents a partial view of the example of an electric heat exchange module according to the invention;

[0032] [Fig.9] [Fig.9] shows the mounting of the example of an electric cooling module in the example of a ventilation device;

[0033] [Fig. 10]] [Fig. 10] represents a partial view of an example of a ventilation system according to the invention;

[0034] [Fig. 11]] [Fig. 11] represents an exploded view of the example ventilation system according to the invention;

[0035] [Fig. 12]] [Fig. 12] shows an overview of the example ventilation system according to the invention. Detailed description Ventilation device

[0036] An example 100 of a ventilation device according to the invention will be described with reference to FIGS. 1 to 4.

[0037] The ventilation device 100 is configured to be installed in a motor vehicle, in particular of type Ml, whose thermal comfort needs are basic and simplified. The vehicle may also be a low-cost electric vehicle such as a quadricycle, such as a heavy quadricycle of category L7e or a light quadricycle of category L6e.

[0038] An internal housing 110 of the ventilation device 100 is configured to removably receive an electrical heat exchange module for heat exchange between a pulsed air and the heat exchange module. Internal walls of the ventilation device 100 may comprise guide means 112, in particular in the form of grooves, rails or notches, making it possible to guide and maintain the electrical heat exchange module in the internal housing 110.

[0039] An opening 109 provides access to the housing 110 from outside the ventilation device 100 and allows the introduction of the electrical heat exchange module into the housing 110. The opening 109 is configured to be closed by the electrical heat exchange module when the latter occupies the housing 110. For this purpose, the opening 109 may be shaped to fit an external shape of the electrical heat exchange module. In particular, the electrical heat exchange module seals against the edges of the access opening 109.

[0040] Thanks to the access opening 109 and the internal housing 110, the ventilation device 100 receives the electrical heat exchange module, without impact, or very little, on its external dimensions. Thus, with or without the electrical heat exchange module, the ventilation device 100 occupies the same volume, or substantially the same. The installation of the ventilation device 100 in the vehicle is thus facilitated. By receiving the electrical heat exchange module in a removable manner, the ventilation device 100 is modular, which allows it to be adapted according to the wishes of the user of the vehicle.

[0041] In particular, the access opening 109 is closed by a hatch 108, preferably in a sealed manner, when the internal housing 110 is without the electrical heat exchange module. Thus, with or without the electrical heat exchange module, the ventilation device 100 forms a monolithic and independent functional element configured to generate and deliver pulsed air.

[0042] In particular, the ventilation device 100 comprises a blower 120 which generates the pulsed air intended to be expelled by the ventilation device 100 into a passenger compartment of the vehicle. The ventilation device 100 comprises an injection opening 122 which forms an air inlet from the outside for the blower 120.

[0043] In particular, the internal housing 110 is located on the passage of the pulsed air towards an outlet port 130 of the ventilation device 100. In particular, the blower 120, the internal housing 110 and the outlet port 130 are successively aligned along a substantially spiral-shaped line starting from the air blower 120. The pulsed air substantially follows this spiral line. Such an arrangement makes it possible to limit the size of the ventilation device 100.

[0044] In particular, the internal housing 110 is at least partially aligned with the pulser 120 and the outlet port 130 along a direction A, in particular as shown in [Fig. 4]. Along this direction A, the pulser 120 is then located between the internal housing 110 and the outlet port 130. More particularly, the access opening 109 is at least partially aligned with the injection opening 122 and the outlet port 130 along a direction A, in particular as shown in [Fig. 4]. Along this direction A, the injection opening 122 is then located between the access opening 109 and the outlet port 130. These arrangements make it possible to further reduce the span of the ventilation device 100 in a direction perpendicular to the direction A.

[0045] In particular, the outside air is sucked towards the blower 120 through the injection opening 122. The blower 120 then propels the air into the internal housing 110, then towards the outlet port 130 where the air is expelled, in particular into a passenger compartment of the vehicle.

[0046] The ventilation device may comprise at least one vane 131, 132 for stopping or guiding the pulsed air. For example, a first vane 131 is located between the internal housing 110 and the outlet port 130 to meter or stop the air flow. For example, a second vane 132 is located upstream and opposite the outlet port 130 to selectively guide the air towards areas of the passenger compartment, in particular towards a windshield, vents or a low area where the feet of an occupant of the vehicle are located.

[0047] As for example illustrated in [Fig. 10], the ventilation device 100 may comprise an air filter 150, in particular to stop large, medium or small particles from the air or to reduce air humidity. The air filter 150 may be mounted upstream of the blower 120, between the blower 120 and the internal housing 110, or between the internal housing 110 and the outlet port 130 to avoid damaging the electrical heat exchange module or to improve the quality of the air delivered into the passenger compartment of the vehicle. The air filter 150 is in particular accessible through the opening 109 to be cleaned or replaced.

[0048] An electrical cable 124 may extend out of the ventilation device 100 for powering or controlling the blower 120 and / or other components of the ventilation device 100. The cable 124 may include at its distal end a connector that connects to a corresponding connector of the vehicle.

[0049] In particular, the ventilation device 100 comprises a housing 140 containing its components so that the device 100 forms a monolithic assembly. In particular, the housing 140 is formed of two half-shells 141, 142 assembled together. The half-shells 141, 142 come in particular on either side of the spiral line on which the blower 120, the internal housing 110 and the outlet port 130 are aligned to enclose the components of the ventilation device 100. In particular, the shells 141, 142 are assembled in a sealed manner. Staples may be used to hold them together.

[0050] In particular, the ventilation device 100 comprises two access openings 109 as described previously. The access openings 109 are located in opposite faces of the ventilation device 100. In particular, the electrical heat exchange module can be mounted in the internal housing 110 by one or the other of these access openings 109. In particular, each of the access openings 109 can be closed by a respective hatch 108, already described, when the internal housing 110 is devoid of the electrical heat exchange module. In particular, each access opening 109 is included in a respective half-shell 141, 142. Electrical heat exchange module

[0051] An electric heat exchange module is understood to mean a module which makes it possible to produce, from electrical energy, heat, for example by a resistive effect, or cold, for example by a thermoelectric effect.

[0052] For example, the electrical heat exchange module forms an electric radiator configured to heat the air pulsed into the ventilation device 100. The radiator forms an independent module that can be removably mounted in the internal housing 110 of the ventilation device 100. In particular, a housing of the radiator is shaped to fit the internal housing 110 and the access opening 109. In particular, the radiator forms a positive temperature coefficient (or “PTC”) module, having for example a power of between 200W and 2kW.

[0053] For example, the electrical heat exchange module forms an electrical cooling module configured to cool the air pulsed in the ventilation device 100.

[0054] An example 200 of an electrical heat exchange module according to the invention will be described with reference to FIGS. 5 to 8. The example of an electrical heat exchange module forms an electrical cooling module 200 usable in a ventilation device, in particular in the ventilation device 100 previously described. The electrical cooling module 200 forms an independent module which can be removably mounted in the internal housing 110 of the ventilation device 100. In particular, a housing of the electrical cooling module 200 is shaped to fit the internal housing 110 and the access opening 109.

[0055] The electrical cooling module 200 comprises at least one thermoelectric module 210, which will be described more precisely with reference to [Fig. 7] which shows a partially exploded view thereof. The thermoelectric module 210 comprises a set of electrical components 216 which transfer calories from a cold face 212 to a hot face 214, which is in particular opposite the cold face 212. The cold face 212 is used to cool at least a portion of the air pulsed through the electrical cooling module 200.

[0056] The set of electrical components 216 is for example in the form of a Peltier cell. In particular, the Peltier cell 216 is chosen according to the size of the electrical cooling module 200 and the temperature range required to provide the air conditioning service. For example, the Peltier cell has dimensions of 40mm x 400mm x 3.55mm.

[0057] In particular, the cold face 212 comprises a first heat sink 212d; and the hot face 214 comprises a second heat sink 214d. In particular, the sinks 212d, 214d are each on an opposite face of the set of electrical components 216. Preferably, an electrical and thermal insulator 217 is at the interface between the parts of the first sink 212d and the second sink 214d which are directly opposite each other, these parts are in particular around the set of electrical components 216. The sinks 212d, 214d comprise for example protrusions, such as fins.

[0058] The first heat sink 212d has for example a parallelepiped shape, in particular dimensions 60mm x 50mm with a base of thickness 10mm and fins having a height of 40mm from the base. In particular, the fins are arranged on the base in order to leave air passages. The role of the first heat sink 212d is to extend the heat exchange surface of the cold face 212. Once mounted in the ventilation device 100, the pulsed air passes between the fins to be cooled.

[0059] The second heat sink 214d makes it possible to dissipate the heat produced by the set of electrical components 216. For this purpose, the second heat sink can be made of aluminum.

[0060] In particular, when the electrical cooling module 200 is mounted in the ventilation device 100, a central channel CC receives a first part Al of the air pulsed by the ventilation device 100. This first part Al of the pulsed air is cooled by the cold face 212 of the thermoelectric module 210. In addition, a peripheral channel CP extends around the central channel CC. This peripheral channel CP receives a second part A2 of the pulsed air to cool the hot face 214 of the thermoelectric module 210. Thus, the pulsed air, in particular from the blower 120, will on the one hand be cooled and expelled through the outlet port 130 of the ventilation device 100, and on the other hand be used for cooling the hot face 214 of the thermoelectric module 210. The cooling of the hot face 214 can therefore benefit from the pulsed air, which due to its acceleration allows better heat dissipation.

[0061] In particular, the thermoelectric module 210 is mounted in a wall separating the central channel CC and the peripheral channel CP, so that its hot face 214 is included in the peripheral channel CP and its cold face 212 is included in the central channel CC. In particular, the first dissipator 212d extends into the central channel CC to cool the first part A1 of the pulsed air; and the second dissipator 214d extends into the peripheral channel CP to be cooled by the second part A2 of the pulsed air.

[0062] In particular, the peripheral channel directs the second part A2 of the pulsed air in a transverse direction relative to the first part A1 of the pulsed air. Thus, the peripheral channel CP allows an expulsion of the second part A2 of the pulsed air, heated by the hot face 214 of the thermoelectric module 210, on one side of the electric cooling module 200; while the central channel CC makes it possible to direct the first part Al of the pulsed air, cooled by the cold face 212, towards the outlet port 130, in particular along the spiral line described previously. The management of the thermal exchanges implemented by the electric cooling module 200 is thus facilitated.

[0063] In particular, the peripheral channel CP forms a ring around the central channel CC. Thus, the second part A2 of the pulsed air can be collected at several peripheral positions of the incident pulsed air, which improves the volume of air available for cooling the hot face 214 of the thermoelectric module 210. In addition, the size of the electrical cooling module 200 is controlled.

[0064] In particular, a first face 200a receives the pulsed air and a second face 200b, opposite the first face 200a, delivers the first part A1 of the pulsed air cooled by the cold face 212; at least one lateral face 200L, connecting the first face 200a and the second face 200b, expels the second part A2 of the pulsed air. The lateral face 200L is further intended to close the access opening 109 of the ventilation device 100. Thus, the air heated by the hot face 214 of the thermoelectric module 210 is expelled through the same access opening 109, by which the electric cooling module 200 is mountable in the ventilation device 100.

[0065] In particular, the first face 200a comprises a first central opening 201, which forms one end of the central channel CC and is intended to receive the first portion A1 of the pulsed air. The first face 200a further comprises at least one secondary opening 204 at the periphery of the first central opening 201. The secondary opening 204 opens into the peripheral channel CP so as to deliver the second portion A2 of the pulsed air into the peripheral channel CP. The first face 200a may comprise a plurality of secondary openings 204, positioned for example in corners of the first face 200a.

[0066] The second face 200b comprises a second central opening 202 forming one end of the central channel CC. It is intended to expel the first part Al of the cooled pulsed air. The lateral face 200L comprises a lateral opening 203L opening into the peripheral channel CP, so as to allow the expulsion of the second part A2 of the pulsed air heated by the hot face 214 of the thermoelectric module 210.

[0067] In particular, the thermoelectric module 210 is positioned so that its hot face 214, in particular the second heat sink 214d, extends opposite the lateral opening 203L. Thus, the hot face 214 can be cooled by all the air flows expelled by the lateral opening 203L.

[0068] In particular, the electrical cooling module 200 comprises at least one fan 220 to improve the flow rate of the second part A2 of the pulsed air, from the peripheral channel CP towards the outside of the electrical cooling module 200. For this purpose, the fan 220 is housed in particular in the lateral opening 203L of the lateral face 200L. The fan 220 can be mounted with the second heat sink 214d, in particular on a face of the heat sink opposite the set of electrical components 216. The fan 220 then forms an assembly integral with the thermoelectric module 210. The assembly comprises ears 218 allowing it to be mounted on an internal wall of the electrical cooling module 200.

[0069] Preferably, the electrical cooling module 200 comprises two thermoelectric modules 210, each mounted on a respective lateral face 200L. The two lateral faces 200L are opposite each other, and are configured to close a respective access opening 109 of the ventilation device 100. The cold faces 212 of the thermoelectric modules face each other and extend into the central channel CC. This configuration makes it possible to uniform the cooling of the first part Al of the pulsed air, since it is cooled on two sides. The protrusions of the second dissipators 214d can extend towards the middle of the central channel CC for better cooling.

[0070] However, the electrical cooling module 200 could have other configurations of its thermoelectric module(s) 210. For example, the thermoelectric module could comprise a single thermoelectric module 210 facing a side face 200L.

[0071] In particular, the electrical cooling module 200 comprises a housing 240 containing its components so that the electrical cooling module 200 forms a monolithic assembly.

[0072] In particular, the housing 240 is formed of two half-shells 241, 242 assembled together. In particular, the half-shells 241, 242 are assembled along a longitudinal plane of the peripheral channel CP and along a plane transverse to the central channel CC. More particularly, a first half-shell 241 comprises the first face 200a of the electrical cooling module 200, and a second shell 242 comprises the second face 200b. The lateral face(s) 200L are formed by the assembly of the half-shells 241, 242. Preferably, the first half-shell 241 is shaped to correspond with a duct of the ventilation device 100 delivering the incident pulsed air; and the second half-shell 242 is shaped to correspond to a pipe of the ventilation device 100 expelling the pulsed air towards the outlet port 130.

[0073] In particular, the half-shells 241, 242 are assembled in a sealed manner. Staples may be used to hold them together. In particular, the half-shells 241, 242 come in a sealed manner around the thermoelectric module(s) 210.

[0074] In particular, the peripheral channel CP forms an internal channel of the electrical cooling module 200. It is separated from the main channel CC in a sealed manner by external walls of the housing 240.

[0075] Each half-shell 241, 242 may comprise channels 243 leading to a funnel 245 for evacuating condensate forming on the cold face 212 of the thermoelectric module(s) 210. The funnel 245 may correspond with an evacuation duct of the ventilation device 100.

[0076] In particular, a control unit 250 makes it possible to control the electric cooling module 200 independently. The control unit 250 may be housed in the peripheral channel CP to be cooled by the second part A2 of the pulsed air. The electronic unit 250 is for example an electronic card. In particular, an electric cable 254 extends out of the electric cooling module 200 for a power supply or a control of the electric cooling module 200. The cable 254 may comprise at its distal end a connector which connects to a corresponding connector of the vehicle.

[0077] The electrical cooling module 200 may comprise a temperature sensor 260 located in the central channel CC to control the temperature of the first part Al of the pulsed air. In particular, the temperature sensor 260 passes in a sealed manner through the wall separating the central channel CC and the peripheral channel CP to connect to the electronic unit 250. Ventilation system

[0078] The electrical cooling module 200 can then be mounted in a ventilation device, in particular the ventilation device 100 previously described, to form a ventilation system having an air conditioning function. The ventilation system will be described with reference to FIGS. 8 to 12.

[0079] As for example illustrated in figures 9 and 10, the electrical cooling module 200 is mounted in the internal housing 110 of the ventilation device 100 by passing through an access opening 109. Once mounted in the internal housing 110, the electrical cooling module 200 closes the access opening 109, in particular in a sealed manner. Thus, the electrical cooling module is an integral part of the ventilation device 100.

[0080] In particular, the access opening 109 is closed by the lateral face 200L of the electrical cooling module 200 so that the lateral opening 203L gives access to the outside of the ventilation device 100 via the access opening 109. Thus, the second part A2 of the pulsed air can be expelled from the system.

[0081] Preferably, at least one lateral duct 300 is mounted along an external wall of the ventilation device 100. The external wall is in particular a lateral face of the ventilation device 100 in which the edges of the access opening 109 are included. A first end 301 of the lateral duct 300 extends from the access opening 109 so as to receive the air flow expelled by the electric cooling module 200. A second end 302 of the lateral duct 300 forms an opening for expulsion of the air flow, and is located between the pulsed air outlet port 130 and the blower 120 of the ventilation device 100. Thus, the lateral duct 300 makes it possible to bring the air expelled by the electric cooling module 200, in particular the second part A2 of the pulsed air, to an area where it can be directed towards an outlet for expulsion from the vehicle. By extending against the wall of the ventilation device 100, the lateral duct 300 has little impact on the size of the ventilation device 100.

[0082] Preferably, the lateral duct 300 is mounted in a removable manner. In particular, fixing means 109a located on the external wall of the ventilation device 100 extending around the access opening 109 make it possible to fix the lateral duct 300 in a removable manner. These fixing means 109a may take the form of studs on the periphery of the access opening 109, which receive corresponding parts of the lateral duct 300 for removable fixing. The same fixing means 109a located on the external wall of the ventilation device 100 may be used to fix the hatches 108.

[0083] In particular, the access opening 109 is at least partially aligned with the injection opening 122 and the outlet port 130 along a direction A, as described previously. In particular, the lateral duct 300 comprises a recess 303 to bypass the injection opening 122, which makes it possible to maintain the compactness of the ventilation system.

[0084] In particular, the ventilation device 100 comprises two access openings 109 located on opposite faces of the device 100. Each access opening 109 is closed by a respective lateral face 200L of the electrical cooling module 200. A lateral duct 300 as described previously extends from each access opening 109 to conduct the hot air produced by each thermoelectric module 210 of the electrical cooling module 200. Preferably, the lateral ducts 300 join in an upper duct 350. The upper duct 350 is located in particular against a wall connecting the external walls against which the lateral ducts 300 extend and extends from a position between the outlet port 130 and the blower 120 of the ventilation device 100. Such an arrangement further improves the compactness of the ventilation system.

[0085] Thanks to the electric cooling module 200, the air conditioning function can be mounted in a simple and reversible manner in the ventilation device 100. The ventilation system obtained is less expensive and less bulky than a system of the prior art using an evaporator mounted in the ventilation device and a additional external circuit.

Claims

Claims

1. Ventilation device (100) for a motor vehicle, comprising: i. an internal housing (110), ii. at least one access opening (109) to said housing (110) from outside said ventilation device (100), said internal housing (110) being configured to removably receive an electrical heat exchange module for heat exchange between pulsed air and said module; and said access opening (109) being configured to allow the introduction of said electrical heat exchange module into said housing (110) and to be closed by said electrical heat exchange module when the latter occupies said housing (110).

2. Electrical heat exchange module (200) forming an independent unit, configured to be mounted in the internal housing (110) of a ventilation device (100) according to claim 1.

3. Electric heat exchange module (200) according to the preceding claim, forming an electric radiator configured to heat the air pulsed in said ventilation device (100), or an electric cooling module configured to cool the air pulsed in said ventilation device (100).

4. Electric heat exchange module (200) according to the preceding claim, forming an electric cooling module and comprising at least one thermoelectric module (210) comprising electrical components (216) configured to transfer calories from a cold face (212) of the thermoelectric module to a hot face (214) of said thermoelectric module, said cold face (212) being configured to cool at least part of the pulsed air.

5. Electrical heat exchange module (200) according to the preceding claim, comprising: i. a central channel (CC) configured to receive a first portion (Al) of the pulsed air so as to cool it by the cold face (212) of the thermoelectric module, and ii. a peripheral channel (CP) extending around said central channel (CC) and configured to receive a second portion (A2) pulsed air so as to cool the hot face (214) of the thermoelectric module.

6. Electrical heat exchange module (200) according to the preceding claim, wherein the thermoelectric module (210) is located in a wall separating the central channel (CC) and the peripheral channel (CP), the hot face (214) being included in said peripheral channel (CP) and the cold face (212) being included in said central channel (CC).

7. Electrical heat exchange module (200) according to claim 5 or 6, wherein the peripheral channel (CP) is configured so as to direct the second part (A2) of the pulsed air in a transverse direction relative to the first part (Al) of the pulsed air.

8. Electrical heat exchange module (200) according to one of claims 5 to 7, in which the peripheral channel (CP) forms a ring around said central channel (CC).

9. Electrical heat exchange module (200) according to one of claims 5 to 8, comprising: i. a first face (200a), intended to receive the pulsed air from the ventilation device (100); ii. a second face (200b), opposite the first face (200a), intended to deliver the first part (A1) of the pulsed air; iii. at least one lateral face (200L), connecting the first face (200a) and the second face (200b), configured to expel the second part (A2) of the pulsed air and intended to close the at least one access opening (109) of the ventilation device (100).

10. Electrical heat exchange module (200) according to the preceding claim, wherein: i. the first face (200a) comprises a first central opening (201) forming one end of said central channel (CC) intended to receive the first part (A1) of the pulsed air, and at least one secondary opening (204) at the periphery of said first central opening (201), opening into said peripheral channel (CP), so as to deliver the second part (A2) of the pulsed air into the peripheral channel (CP), ii. the second face (200b) comprises a second central opening (202) forming one end of said central channel (CC) intended to expel the first part (Al) of the cooled pulsed air, and iii. the at least one lateral face (200L) comprises a lateral opening (203L) opening into said peripheral channel (CP) so as to allow the expulsion of the second part (A2) of the pulsed air heated by the hot face (214) of said thermoelectric module.

11. Electrical heat exchange module (200) according to claim 9 or 10, comprising: i. two side faces (200L) located opposite each other, configured to close a respective access opening (109) of the ventilation device (100), and ii. two thermoelectric modules (210), each facing a respective side face (200L), their cold faces (212) facing each other.

12. A ventilation system comprising: i. a ventilation device (100) according to claim 1, and ii. an electrical heat exchange module (200) according to claim 2 or 3, said electrical heat exchange module (200) being mounted in said internal housing (110) and closing said access opening (109).

13. A ventilation system comprising: i. a ventilation device (100) according to claim 1, and ii. an electrical heat exchange module (200) according to one of claims 4 to 11, said electrical heat exchange module (200) being mounted in said internal housing (110) and closing said access opening (109); said ventilation device (100) comprising an air blower (120), said air blower (120) being located between the electrical exchange module thermal (200) and an outlet port (130) for pulsed air of the ventilation device (100), and said system further comprising at least one lateral duct (300) mounted along an external wall of the ventilation device (100), a first end (301) of the duct extending from said access opening (109) so as to receive a flow of air expelled by said electrical heat exchange module (200) and a second end (302) of said duct being located between the pulsed air outlet port (130) of the ventilation system and the air blower (120).

14. Ventilation system according to claim 13, wherein the ventilation device (100) comprises two access openings (109) located on opposite faces of said ventilation device (100), each opening (109) being closed by a respective lateral face (200L) of said electrical heat exchange module (200); said system comprising two lateral ducts (300) corresponding respectively to one of said access openings (109).

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