Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
  • B60H1/00792—Arrangement of detectors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
  • B60H1/00514—Details of air conditioning housings
  • B60H1/00521—Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
  • B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H1/00—Heating, cooling or ventilating [HVAC] devices
  • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
  • B60H2001/00635—Air-tight sealing devices

Definitions

• the invention relates to a climate module of an air conditioning system, in particular of a motor vehicle, having a gas sensor device which has a reflector chamber supporting a base holder with a gas inlet opening.
• Gas sensor devices which operate on the refractor principle are known in principle. They have a reflector chamber with a gas inlet opening, wherein a light source and a light sensor are arranged in a geometrically precisely defined arrangement within the reflector chamber. Such reflector chambers are sensitive to mechanical stress, in particular to shaking during operation, as well as to dirt, in particular dust particles. Reflector chambers of the generic type are directed, for example in use in motor vehicles, with their gas inlet opening in a vehicle interior and are usually connected via cable connections to an evaluation unit. It is disadvantageous that a plurality of modules, for example, the reflector chamber and its evaluation separately installed and electrically connected to each other, for example, must be wired.
• the object of the invention is to provide a climate module of an air conditioning system with a gas sensor device of the generic type which is as compact as possible
• a climate module of an air conditioning system in particular of a motor vehicle, is proposed, with a gas sensor device which identifies a reflector chamber supporting a base holder with a gas inlet opening. It is envisaged that the reflector chamber is urged against the base holder by means of an elastic holding member.
• the reflector chamber is supported, as described, on the base holder, which is for example a receptacle for an electrical circuit board associated with the reflector chamber.
• the reflector chamber is held urged to its determination by means of an elastic support member against this base holder.
• the reflector chamber is consequently not fixed by a fixed connection, for example a welding, gluing or screwing or pinning, but via the elastic retaining member which urges the reflector chamber against the described basic holder. In this way, a shaking or vibration-proof clamping connection of the reflector chamber is achieved relative to the base holder.
• the holding member is supported on the one hand on the reflector chamber and on the other hand on a housing part of the air conditioning module.
• the holding member is thus introduced in such a manner between the reflector chamber and the housing part, that a support takes place on both components, the holding member thus biased rests between the reflector chamber and the housing part.
• the reflector chamber is thereby determined by means of the elastic holding member between the housing part on the one hand and the base holder on the other.
• the housing part is a cover, that is to say a detachable housing part closing a housing of the climate module.
• the cover is preferably a fan regulator cover which regulates a fan introduced into the air conditioning module for operating the air conditioning system, in particular as a function of a gas concentration measured via the circular sensor device.
• the reflector chamber is formed as a reflector dome, wherein the elastic retaining member is located outside in the region of the roof area, ie in the region of a dome roof, the reflector dome. Consequently, the reflector chamber has a dome-shaped structure, in particular one which has a bottom formation, for example by means of the already mentioned printed circuit board with the light source and the sensor system, and a dome which comprises the actual reflector, that is to say the optical elements effecting the reflection. For example, facet mirror or generally a mirror.
• the reflector dome is acted upon by the elastic holding member on the outside, in the region of its dome roof, that is substantially on the upper side in the dome-shaped training.
• the gas inlet opening is located in the region of the dome roof of the reflector dome.
• the gas inlet opening opens the reflector chamber to the environment, so that the gas whose concentration is to be measured can enter.
• This gas inlet opening is here in the region of the roof of the reflector dome, ie arranged in the dome roof, ie in particular in the region of its zenith.
• the elastic retaining member is an elastic retaining ring.
• the holding member therefore has an annular structure, whereby an opening is enclosed by the elastic material of the retaining ring.
• the retaining ring need not necessarily have a circular (outer) contour.
• the retaining ring surrounds the gas inlet opening.
• the gas inlet opening is therefore in opposite or partially in the opening, which is enclosed by the elastic material of the retaining ring. The gas access into the reflector chamber is thus carried out through the retaining ring through the gas inlet opening.
• the holding member is preferably formed as a foam ring.
• Foams are available in a variety of configurations and in a wide range of parameters, so that a suitable foam can easily be found for the respective purposes. In particular, foams should be used, which in turn release no harmful gas concentration.
• the holding member made of mixed-cell polyu- formed rethan having advantageous spring and damper properties. By this training, a tolerance compensation is also possible, resulting in a better installation tolerance.
• the holding member is advantageously formed in such a manner that it causes a maximum restoring force of 8 N and a minimum restoring force of 5 N, whereby a secure holding causes and undesirable deformation of the reflector dome can be advantageously avoided.
• the foam is in foam stamping.
• the recovery of the foam ring is therefore carried out by means of a punching process, for example, a foam mat.
• the housing part in particular the cover, in a preferred embodiment have a gas passage opening.
• the gas passage thus takes place in the reflector chamber via the gas passage opening of the housing part, through the
• Foam ring and the gas inlet opening of the reflector chamber wherein the three openings are preferably opposite to each other.
• the gas passage opening is closed by means of a gas-permeable membrane.
• the membrane prevents the entry of dust into the reflector chamber, which could lead to inaccurate measurements of the gas concentration.
• the gas inlet into the reflector chamber is preferably carried out by gas exchange and gas diffusion through the membrane.
• the gas passage opening which is formed on the housing part, surrounded by a holding element at least partially, which holds the holding member.
• the retaining element may in this case be, for example, at least partially annular, wherein the retaining member, in particular in its embodiment as a foam ring, with lighter
• the holding element is particularly preferably designed as an annular element in the manner of an attached to the housing part, in particular integrally angegliederten tube and has the underside, namely in the reflector chamber or the
• Reflector dome associated end, a circumferential or at least richly circumferential retaining lip or retaining lugs, which fix the retaining member in the retaining element.
• a simple assembly in particular a prefabrication, by inserting the holding member in the holding element, such as the lid, reach, also a loss of the holding member when opening the housing, so for example removing the lid, safely avoided.
• FIG. 1 shows a climate module of an air conditioning system of a vehicle with a gas sensor device
• FIG. 2 shows a housing part of the climate module, namely a lid
• FIG 3 shows a sectional view through a reflector chamber of the gas sensor device.
• FIG. 1 shows a climate module 1 of an air conditioning system (not shown) of a motor vehicle (not shown).
• the climate module 1 comprises as module 2, ie as
• a fan 4 for promoting an air flow not shown here, wherein the fan 4 is arranged freely protruding in its axial direction via a mounting flange 5, so that the fan 4 can enter an air duct, not shown, the air conditioning, wherein the air duct of the mounting flange 5 is closed in the installation position.
• a fan motor 9 is arranged to drive the fan 4, wherein under the cover 6 for controlling the fan motor 9, in particular for controlling a motor speed and conveyed air quantity, a fan controller 10 (due to the assembled cover 6 is not visible here) is arranged.
• the blower regulator 10 is a gas associated sensor device 1 1, which is arranged under the lid 6, and is about a lid 6 to the environment opening gas passage opening 12 with its environment in gas exchange contact.
• FIG 2 shows the lid 6, namely the housing part 7, wherein the lid 6 is integrally formed as a fan motor cover 13 and as a fan regulator cover 14.
• the fan controller 10 is housed, while the blower motor 9 is accommodated in the volume enclosed by the fan motor cover 13.
• the gas passage opening 12, which is covered by a gas-permeable honeycomb grid 16, which constitutes a contact protection 17 which prevents the penetration or penetration of foreign bodies through the gas passage opening 12 into the volume enclosed by the fan regulator cover 14, is thus introduced into the upper side of the fan cover 15 Area of the fan controller 10, prevented.
• FIG. 3 shows a sectional view through the cover 6, namely the fan control cover 14, in the region of the gas passage opening 12 in the region of a lattice strut 18 of the honeycomb lattice 16.
• On one of the fan control louver top side 15 opposite fan control louver bottom 19 is for receiving an elastic support member 20 integral with the lid. 6 in the form of an at the
• Fan controller lid bottom 19 molded tube 21 formed holding member 22 for receiving the elastic holding member 20 is arranged.
• the holding member 22 surrounds the holding member 20 in an annular shape, whereby the holding member 20 is held with bias slightly clamped radially into the holding member 22 on the outer peripheral side.
• the holding member 20 is formed as an elastic retaining ring 23, with an opening 24 which is aligned with the gas passage opening 12 when the holding member 20 is inserted into the holding member 22.
• the retaining element 22 has on its end face 25 applied to the fan control cover 14 a constriction 26 which axially fixes the retaining element 20, namely the retaining ring 23, so that the retaining element 20 engages on the cover 6, namely on the one hand
• the gas sensor device 1 1 further comprises a reflector chamber 27, which consists of a reflector dome 28 and a printed circuit board 29 carrying them wherein the printed circuit board 29 has a light source 30 and a sensor unit 31, and wherein the sensor unit 31 is optically connected to the reflector chamber 27 by a sensor window 32 in the printed circuit board 29.
• this tight connection is also gas-tight, so that the access of gas from the surroundings of the gas sensor device 1 1 can be effected only by a gas access opening 34, which is in the region of a dome 35 of the reflector dome
• the gas inlet opening 34 is aligned in the installed state of the reflector chamber 27, for forming the gas sensor device 1 1, with the opening 24 of the holding member 20 and with the gas passage opening 12 which is introduced in the cover 6.
• the gas passage opening 12 of the lid 6 is closed by a gas-permeable membrane 37 in the region of the honeycomb grid 16, whereby the membrane 37 has oversize relative to the gas passage opening 12 and the opening 24 of the holding ring 23 so that it is supported by the fan regulator lid lower side 19 on the one hand and the retaining ring 23 on the other hand clamped in its installed position. Through the membrane 37, the passage of fine solids such as dust and also unwanted liquid is prevented.
• the membrane 37 has such a nature that only in the reflector chamber 27, in particular by refraction measurement, gases to be sensed pass through, in particular can diffuse through.
• the reflector chamber 27 When closing the cover 6, the reflector chamber 27 is namely acted upon by the elastic support member 20 in the region of its dome 35 with a small but sufficient force, for example, between 5 N and 8 N, and thereby shake-proof against the base holder 38th is urged and held.
• the reflector chamber 27 thus experiences in the arrangement shown a clamping holding between the fixed base holder 38 and the resilient, resilient support member 20.
• a vibration-proof attachment during operation of the climate module 1 is given in a motor vehicle, not shown, without that undesired effects, such as, for example, deformations of the reflector dome 28, occur which could influence the quality of the gas measurement in the gas sensor device 11.
• the climate module shown in Figure 1 is preferably arranged in a motor vehicle such that it projects with the gas passage opening 12 in a vehicle interior of the motor vehicle, this arrangement is preferably in the range of a footwell of the vehicle interior, so that the gas passage opening 12 protrudes into the vehicle interior and the Fan in a the interior, for example, behind a panel or veneer, connected air duct.

Landscapes

• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Air-Conditioning For Vehicles (AREA)
• Investigating Or Analysing Materials By Optical Means (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41396108

Family Applications (1)

Country Status (4)

Cited By (3)

Citations (3)

• 2008
  • 2008-11-19 DE DE200810043870 patent/DE102008043870A1/de not_active Withdrawn
• 2009
  • 2009-09-21 EP EP09783240A patent/EP2358549B1/de not_active Not-in-force
  • 2009-09-21 WO PCT/EP2009/062200 patent/WO2010057700A1/de active Application Filing
  • 2009-09-21 CN CN2009801459549A patent/CN102216097A/zh active Pending

Patent Citations (3)

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