Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/56—Heating or ventilating devices
  • B60N2/5678—Heating or ventilating devices characterised by electrical systems
  • B60N2/5685—Resistance
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/56—Heating or ventilating devices
  • B60N2/5607—Heating or ventilating devices characterised by convection
  • B60N2/5621—Heating or ventilating devices characterised by convection by air
  • B60N2/5642—Heating or ventilating devices characterised by convection by air with circulation of air through a layer inside the seat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/56—Heating or ventilating devices
  • B60N2/5607—Heating or ventilating devices characterised by convection
  • B60N2/5621—Heating or ventilating devices characterised by convection by air
  • B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface

Definitions

• the present invention relates to an air conditioning device according to claim 1.
• Generic air conditioning devices are used, for example, for air conditioning vehicle seats.
• Vehicle seats are known in which a seat heater can be set to different temperature levels with the aid of a potentiometer.
• a seat heater is not optimal in terms of comfort.
• Ventilated and heated vehicle seats are also known, which are completely computer-controlled. Such systems are expensive.
• the present invention relates to an air conditioning device with the features of claim 1. Such a device offers high ease of use combined with low production costs.
• a device according to claim 2 or 3 is robust and inexpensive.
• a device according to claim 5 or 6 makes it possible to dispense with an expensive central control unit.
• a device according to claim 7 prevents hypothermia of a user due to air currents that are too cold.
• a device according to claim 8 prevents overheating of non-air-flowed areas of a surface to be heated.
• FIG. 1 Schematic view of an air conditioning device
• top view of a first embodiment of an operating element with two resistance devices 3 top view of a second embodiment of an operating element with two resistance devices. 4 top view of a seat from above. 5 top view of a third embodiment of an operating element
• FIG. 1 shows an air conditioning device 1. This has a heating device 5 and a ventilation device 7. Both are connected to an operating device 3.
• the heating device 5 has an electrical heating element 25. This is integrated, for example, under the covering of a vehicle seat. In the exemplary embodiment, it is a heating wire made of stainless steel wire. However, carbon fibers or other known heating materials can also be used, for example.
• the heating device 5 also has a control device 15.
• the control device 15 is electrically connected to the operating device 3. It is also connected to a temperature sensor, not shown. The temperature sensor is preferably mounted in the vicinity of the heating element 25. In addition, the control device 15 is connected to the heating element 25.
• the ventilation device 7 has a fan 27 and a control device 17.
• the control device 17 is a “control”.
• the fan 27 is preferably an axial fan. However, any other shape of turbine can be used.
• the control device 17 is connected on the one hand to the fan 27 and on the other hand to the operating device 3. In the present example, it is additionally connected to a temperature sensor (not shown) in the air flow of the fan 27.
• the control element 9 has an operating device 3.
• FIG. 2 shows details of a first embodiment of an operating device 3. It has an operating element 9. Two resistance devices 11, 13 are assigned to it.
• a resistance device is understood to mean a functional unit whose electrical resistance is significantly higher than the resistance of adjacent electrical lines or can be adjusted accordingly. This creates an infinite resistance or switch.
• the resistance device 11 has a contact pole 42 and a resistor 41 in the form of a triangular, electrically conductive contact surface.
• the Resistor device 13 has a second contact pole 36 and a contact zone 35 in the form of a rectangular, electrically conductive contact surface.
• the resistance device 11 is assigned to the heating device 7.
• the resistance device 13 is assigned to the ventilation device 5.
• the two resistance devices 11, 13 are mechanically connected to one another at their two contact poles 36 and 42 via a bridge element 29 and are coupled to the control element 9.
• the operation of the air conditioning device is as follows: when the operating device 9 is in a rest position, both the heating device 5 and the ventilation device 7 are switched off. This is because the contact poles 36 and 42 do not touch the resistor 41 or the conductor track 35.
• the bracket 29 with the contact poles 36, 42 is moved over the resistor 41 or the conductor track 35.
• the electrical resistance is changed by the changed contact surface between the contact pole 42 and the resistor 41 and / or by the changed remaining resistance length.
• the resistance device 13 has areas in which the contact pole 36 contacts the conductor track 35 and areas in which no contact is made. Different resistance values can thus be set on the control device 9 by means of the bracket 29 on the resistance devices 11, 13.
• control devices 15, 1 7 of the ventilation device 7 and of the heating device 5 independently take over the setting of the operating parameters.
• the control device 17 of the ventilation device 7 uses the resistance value of the resistance device 1 3 to determine whether the fan 27 is operating properly. wishes or not.
• the control device 17 also receives the actual temperature of the air flowing through the fan 27 via the temperature sensor (not shown).
• the control device 17 determines the speed of the fan 27 on the basis of the measured temperature. The parameters required for this are stored in the control device 17. At high air temperatures the fan speed will be rather high, at low temperatures it will be rather low.
• the heating device 5 receives the resistance value of the resistance device 13 of the control element 9.
• the control device 15 of the heating element 5 determines the desired target temperature of the heating element 25 from this resistance value.
• the control device 15 determines the actual temperature in the vicinity of the heating element via the sensor (not shown) 25.
• the control device 15 then independently takes over the temperature monitoring of the heating element 25. To this end, it appropriately adjusts the amount of current flowing through the heating element 25.
• FIG. 3 shows a second embodiment of the resistance devices 11, 13.
• a first and a second electrical resistor 35 ', 41' are arranged concentrically to one another.
• a bridge element 29 ' is rotatably mounted in the center.
• Two contact poles 42, 36 are also provided on the bridge element 29 '. Rotation of the bridge element here causes the contact poles to be displaced relative to the resistors 35 ', 41'.
• This embodiment also enables a simple mechanical change of two resistance values simultaneously.
• the 4 shows a vehicle seat 20 from above. It has a backrest 22 and a seat 24.
• the seat surface 24 has a surface 32 to be heated. In the exemplary embodiment, this corresponds to the complete seat surface 24.
• the surface 32 to be heated has a central region 31. This can be heated electrically and air can flow through it at the same time.
• the heatable surface 32 also has subregions 30 which can only be heated and are not ventilated.
• the central area 31 will be colder than the non-ventilated partial areas 30 due to the ventilation. Setting the temperature of the central area 31 to a comfortable level therefore leads to overheating of the non-ventilated partial areas 30.
• the control device 15 of the heating device 5 therefore has a signal which indicates the operating state of the ventilation device 5. If the fan 27 is switched on, the control device 15 switches off the partial areas 30.
• FIG. 5 shows a flat, ring-shaped supply contact zone 60. This forms an electrical pole of the control element 9. This pole is always connected to an electrical supply potential.
• a heating resistor zone 41 is arranged concentrically at a distance and outside the supply contact zone. It is semicircular. It is made of a conductive material, optionally as here shown as a resistor or as a simple conductor track.
• switching contact zones 235, 235 ', 235" are arranged like a segment of a circle. They are each electrically connected to a control resistor 135, 135 ', 135 ". These control resistors 135, 135', 135" are each assigned to an operating state of the ventilation device 7.
• the heating resistance zone 41 "and the switching contact zones 235, 235 ', 235" each form electrical opposing poles to the supply contact zone 60.
• This embodiment also has a bridge element, which is not shown for the sake of clarity. It is rotatably supported around the center 50 of the supply contact zone 60. It has three contact poles, which are each assigned to the supply contact zone 60, the heating resistance zone 41 "and the switching contact zones 235, 235 ', 235" and contact them depending on the operating state.
• the bridge element In an unheated operating state D, the bridge element only contacts the switching contact zone 235 ". This causes the ventilation device 7 to be operated at an operating level corresponding to the control resistor 135" without heating.
• a fourth operating state A another control resistor 135 is contacted via another switching contact surface 235.
• the heating resistance zone 41 is contacted at a resistance value which has changed compared to the operating state C. This results in a changed heating and ventilation behavior compared to the operating state C.
• contact zones and heating resistors could also be used - as provided for switching the ventilation device 7 in this embodiment.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Air-Conditioning For Vehicles (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7713814

Family Applications (1)

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Citations (5)

Family Cites Families (7)

• 2002
  • 2002-02-13 DE DE10206114A patent/DE10206114C1/de not_active Expired - Fee Related
• 2003
  • 2003-02-12 CN CNB038012774A patent/CN1286673C/zh not_active Expired - Fee Related
  • 2003-02-12 US US10/491,948 patent/US7714254B2/en not_active Expired - Fee Related
  • 2003-02-12 WO PCT/DE2003/000404 patent/WO2003068544A1/de active Application Filing
  • 2003-02-12 JP JP2003567699A patent/JP4125242B2/ja not_active Expired - Fee Related

Patent Citations (5)

Non-Patent Citations (1)

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