WO2008061519A1 - Ventilation, air conditioning, or/and heating system comprising an improved ventilation unit - Google Patents

Abstract

The invention relates to a ventilation, air conditioning, or/and heating system for vehicles, comprising at least one ventilation module (1) that has a rotor (7), a fan motor (5), and a ventilation module housing (3). The ventilation module (1) can be joined to at least one additional ventilation module (1). At least one side (15) of the ventilation module (1) is provided with at least one pipe joint (9) that can be directly connected to a complementary pipe joint (9) of one of the/the additional attachable ventilation module/s (1).

Description

 Ventilation, air conditioning or / and heating system with improved ventilation unit

description

Field of Technology:

The invention relates according to the preamble of claim 1 to a ventilation, air conditioning and / or heating system for vehicles, the at least one

Includes ventilation module with a rotor, a fan motor and a ventilation module housing. A rotor is defined as any type of fan, fan, or impeller that can be used in such systems. Especially in large ventilation, air conditioning and / or heating systems, such as for buses or rail vehicles, such systems are used.

State of the art:

In an air conditioning system, a compressor compresses a gaseous refrigerant and transports it via a line to a condenser. The serving as a heat exchanger condenser is by air _. cooled, which is sucked by means of a blower via an air inlet and discharged via an air outlet. As a result, the initially gaseous and under high pressure refrigerant liquefies. The still under high pressure, now liquid refrigerant is a

Leaded to an expansion device such as a throttle, causing the refrigerant can relax. By relaxing the refrigerant goes into the gaseous state and thereby deprives the environment heat. This heat extraction acts via a serving as a heat exchanger evaporator to the room air of the vehicle compartment to be cooled. The room air is sucked by means of a blower through an inlet opening, passed to the evaporator and so cooled out through corresponding openings in the vehicle compartment to be cooled. Due to the fact that the refrigerant has absorbed heat when cooling the room air, it has been heated. It is routed back to the compressor and compressed again. The cooling circuit starts again.

In a heating system, a heating heat exchanger known for vehicle heaters is used. This heats the guided by means of a blower via the heater core and then passed through openings in the vehicle compartment air.

For a combination of air conditioning and heating system for

Vehicles, for example, consists of a heat exchanger battery from a heating heat exchanger and an evaporator.

In a pure ventilation system, the air exchange between the interior of the vehicle and the environment is assisted or controlled by a rotor driven by a ventilation motor.

In a combination of a ventilation system with a heating system or air conditioning or even with an air conditioning and heating system, the air conditioning and / or heating system also acts as a ventilation system. Ventilation, air conditioning and / or heating systems for vehicles are known in which, above all for better handling, the ventilation unit, which also includes a blower unit, is designed as a ventilation module. For example, such an air conditioning and / or heating system in the German patent DE 100 46 935 B4 is disclosed. However, the ventilation unit is a total of a single module of the system, which in particular large ventilation, air conditioning and / or

Heating systems, such as for buses or rail vehicles, still forms a bulky large unit. Furthermore, it is disadvantageous for the various performance classes of ventilation, air conditioning and / or heating systems in each case designed and manufactured in size a ventilation unit adapted as a module, which in each case causes corresponding costs.

For the power supply of a vehicle ventilation unit, the German patent application DE 44 25 364 Al discloses a plug connection to the housing of the system or to the voltage source of the vehicle. Such provided for power connections of a module to the housing of the entire system are also known in cabinets in telecommunications. A connector consists of at least two connectors plugged together, wherein a connector can be both a plug element and a complementary to a plug element counterpart, such as a socket. Cable connector is the generic term for connectors. Cable connectors are not just connectors, but also other types of contact means which are also easy to handle without special aids, such as spring contact connectors. It must therefore be present according to the prior art on or in the housing of the entire system for each module in each case one complementary to the module line connector line connector, which is expensive and expensive, especially in the production of the system housing.

In US Pat. No. 2,718,186 A, a ventilation and heating system suitable for supplying a large amount of fresh air, with a large ventilation and heating unit in the front of the vehicle and one or more smaller such ventilation and heating units, is further behind for vehicles disclosed in the vehicle, but neither something about an assembly of these individual units nor something about an advantageous line connection is mentioned.

As another example is from the German

Publication DE 103 45 997 Al a system according to the preamble of claim 1 known. Although this is a modular rooftop air conditioning system for vehicles, with ventilation modules are joined together, but even there is not the problem of

Wiring treated and thus no advantageous solution to it.

The invention is therefore based on the object, in particular with regard to the ventilation unit to provide improved ventilation, air conditioning and / or heating system for vehicles. Summary of the invention:

The object is achieved by a ventilation, air conditioning and / or heating system for vehicles containing at least one ventilation module with a rotor, a fan motor and a ventilation module housing, wherein the ventilation module is configured to at least one further ventilation module available, and the ventilation module at least one side at least a ventilation module directly attachable to a complementary cable connector of one of the further attachable /

Ventilation module has connectable line connector solved.

Due to the fact that the ventilation module according to the invention is designed to be available for at least one further ventilation module, a plurality of adjoining ventilation modules, each with its own rotor and ventilation motor, can form a ventilation unit for a ventilation, air conditioning and / or heating system for a vehicle. In this way, several ventilation modules can be joined together for large performance classes of the system. Thus, several similar ventilation modules are used in a system, which keeps the construction and manufacturing costs relatively low.

Furthermore, there is the advantage that the ventilation modules are easier to handle as smaller units.

Furthermore, as a result of the fact that the ventilation module according to the invention has at least one line connector that can be connected directly to a complementary line connector of one of the further attachable ventilation modules / ventilation module on at least one side, in an advantageous manner achieved that not a complementary cable connector on the housing of the ventilation, air conditioning and / or heating system of the vehicle is necessary for each ventilation module and yet a simple, not obstructing the air flow line connection for in particular the power supply of the fan motor is made possible.

In the subclaims advantageous refinements, developments and improvements of the respective subject of the invention are given.

According to an advantageous development of the present invention, the ventilation modules are available in any number to each other and the ventilation module has two mutually complementary configured and located on different sides of the ventilation module, each directly with one of the / each attachable ventilation module / ventilation modules line connectable line connector. This has the advantage that completely similar ventilation modules in any number depending on the size of the system can be variably joined together and at the same time a simple and practical direct line connection is guaranteed by a ventilation module to the next on all assembled ventilation modules.

According to a further advantageous embodiment of the ventilation, air conditioning and / or

Heating system, the ventilation module on at least one side at least one mechanical connection element connectable with an attachable ventilation module. As a result, improved in stability, possibly even without adhesive connection between interconnected ventilation modules allows. Particularly cost-saving and cost-saving in production is an embodiment in which the line connector for the line connection simultaneously represents the mechanical connection element.

A further improvement of the present invention is the design of the or of the line connector / s and of the mechanical connection element (s) of the ventilation module in such a way that the mechanical connection and the line connection of the ventilation modules can be effected solely by a mechanical assembly. This allows a joining of two ventilation modules in one step.

A further advantageous embodiment of the ventilation, air conditioning and / or

Heating system is that as lines of the ventilation module not even possibly free-hanging cables are contacted at one or more line connector (s) of the ventilation module, but at or on the line connector (s) contact lines on or in the ventilation module housing as traces or board (s) are designed. This prevents disturbances in the air flow caused by cables, especially in the ventilation unit.

According to an advantageous embodiment of the ventilation, air conditioning and / or The heating system is provided by the line (s) contacted at the line connector (s) of the ventilation module in addition to the power supply through the line (s) at least one for monitoring and / or controlling the fan motor. Thus, monitoring and control lines can also be continued directly from one ventilation module to the next in a simple and practical manner.

An advantageous variant of the present invention is given when the ventilation modules are releasably connected to each other again. As a result, individual ventilation modules can be removed from the system in order, for example, to carry out a repair only on this ventilation module.

Alternatively, a non-detachable connection of the ventilation modules, however, has the advantage that such a compound is very strong and therefore robust, and also very dense.

According to a further embodiment, at least part of the ventilation, air conditioning and / or heating system according to the invention for positioning on or on the roof is partly provided in a roof of a bus or bus. In such vehicles regularly very large ventilation, air conditioning and / or heating system, the modular design of the ventilation unit according to the invention is of great advantage.

Brief description of the drawings: With reference to the drawings, embodiments of the invention will be explained.

1 shows a schematic illustration of the underside of an exemplary embodiment of the ventilation module according to the invention;

2a is a schematic representation of an embodiment of the line connector according to the invention with contacted thereon trace of a ventilation module according to the invention;

2b shows a schematic representation of a further embodiment of the line connector according to the invention with conductor track of a ventilation module according to the invention contacted thereon;

Fig. 3 is a schematic exploded view of an embodiment of the ventilation unit according to the invention with three ventilation modules;

Fig. 4 is a schematic representation of an embodiment of four joined together ventilation modules according to the invention, and

Fig. 5 is a schematic representation of an embodiment of a mounted on the roof of an omnibus invention air conditioning and / or heating system with ventilation unit.

Detailed description of the invention: In the figures, the same reference numerals designate the same or functionally identical components. All drawings are to be understood schematically. Scale-true images have been omitted for clarity of illustration.

1 shows a bottom side of an embodiment of the ventilation module 1 according to the invention for a ventilation, air conditioning and / or heating system is shown schematically. The ventilation module 1 contains in the center with the

Ventilation module housing 3 connected electric fan motor 5 which drives a rotor 7 in the form of a ventilation wheel. The ventilation module housing 3 is made of injection-molded plastic. But it can also consist of any other suitable material such as aluminum. On two opposite sides 15 of the ventilation module 1 are according to the invention for direct line connection with any adjacent ventilation modules suitable line connector 9 in the form of connectors, 9 electrical contact pins 11 can be seen at the front of the two connectors. An im

Lüfer module housing 3 edged conductor 13 is contacted at each of its two ends to one of the connector 9. From this track 13 branch off in the figure from unrecognizable electrical lines to the fan motor 5. Control and monitoring lines are guided in the conductor track 13. Between the line connectors 9 instead of the conductor 13, for example, a circuit board or cable can be used.

Furthermore, at the two opposite sides 15 of the ventilation module 1 for the invention Assemblability with at least one other ventilation module mechanical fasteners 17 in the form of cuboid recesses available. In this case, various suitable for joining the ventilation modules 1 connecting elements are conceivable, such as a connection with T-shaped grooves and according to the profile of the grooves formed plugs or pins and corresponding holes. The mechanical connecting elements 17 shown in FIG. 1 even allow the ventilation modules 1 to be joined at the same time as the direct line connection is produced in one work step.

The mechanical connecting elements 17 and connector 9 have in this particular embodiment of the ventilation module according to the invention on the opposite side 15 of the ventilation module 1 complementary trained connecting elements 17 and connector 9, so that a wholly arbitrary number of such ventilation modules 1 can be joined together variably depending on the size of the system ,

Figure 2a shows a schematic representation of an embodiment of the line connector 9 according to the invention with contacted thereon trace 13 of a ventilation module according to the invention 1. The ventilation module 1 includes on the front side wall 15 at the right edge of a line connector 9, as a recessed in the side wall 15 connector with without limitation The general public is formed two rows of six electrical contact pins 11 for wiring with a possibly adjacent ventilation module. On the ventilation module 1 is a conductor track 13 is inserted along its right side with a plurality of parallel electrical lines 14 in the ventilation module housing 3. The electrical leads 14 of the conductor track 13 are concealed at one end by the ventilation module housing 3, hidden in the illustration, from behind on a respective contact pin 11 of the connector 9.

Furthermore, located at the side provided with the connector 9 pages 15 of the ventilation module 1 for the assembly according to the invention with at least one other ventilation module mechanical fasteners 17 in the form of cuboid, offset recesses.

FIG. 2 b schematically shows a further exemplary embodiment of the invention

Line connector 9 shown contacted thereto trace 13 of a ventilation module 1 according to the invention. The design of this ventilation module 1 corresponds in shape and with conductor 13, connecting elements 17, ventilation module housing 3 and side wall 15 except for the line connector 9 shown in Figure 2a ventilation module 1. The cable connector 9 includes without limitation the general two rows of six electrical spring contacts 19th , which lie flat on the side wall 15 without cavitation.

Figure 3 shows a schematic exploded view of an embodiment of the ventilation unit 20 according to the invention with three ventilation modules 1. The three ventilation modules 1 each have on the right side in the 1. At the ends of the individual conductor tracks, each of the side walls 15 of the ventilation modules 1 according to the invention, there are line connectors 9, which are designed, for example, as plug connectors. In each case, the connector 9 pointing forwards in FIG. 3 have the form of a socket without being limited thereto. The respective rear-facing connector 9 of the ventilation modules 1 are designed to be complementary to the forward facing connectors 9, such as, but not limited to, in the form of plugs. Thus, when assembling the ventilation modules 1, a direct line connection can be made from one ventilation module 1 to the next, wherein in each case each individual fan motor can be supplied with voltage, controlled and monitored. At or in the line connector 9 on the front 17 of the front ventilation module 1, a complementary line connector 22 can be connected here, for example in the form of a connector to which on its back lines 24 are contacted to the voltage source of the vehicle and control and monitoring units.

At the rear side of the rearmost ventilation module 1 is a matching end strip 26 can be attached, which has a complementary to the rear cable connector 9 of this ventilation module 1 line connector 28 which is formed here, for example in the form of a socket. Depending on the design of the cable routing of the ventilation, air conditioning and / or heating system according to the invention, the lines can be in this line connector 28, for example be guided back to other units or directed directly into the vehicle.

Furthermore, the ventilation modules 1 for the inventive assembly of the ventilation modules 1 are provided with mechanical connectors 17, which are complementary to each other, on the sides 15 of the ventilation modules 9 in the form of guaders, staggered recesses.

FIG. 4 shows schematically an exemplary embodiment of four adjoining ventilation modules 1 according to the invention as a ventilation unit 20. The four ventilation modules 1 are joined together in the square, along two opposing sides mounted on the ventilation module housings tracks 13; Run 13a, which are connected by line connector 9 each directly between two ventilation modules 1 together. On the front sides 15; 15a of the two front ventilation modules 1 are located at the respective

Printed conductors 13; 13a connected line connector 9; 9a, which are formed without restriction of generality on the one hand as a plug and on the other side as a complementary socket.

Furthermore, at the with line connectors 9; 9a provided sides 15, 15a of the ventilation modules 1 for the inventive assembly of the ventilation modules 1 each complementary to each other configured mechanical connecting elements 17, 17a in the form of cuboid, offset recesses present. The wiring 13 of the arranged in the square ventilation modules 1, for example, also be U-shaped or annular, in which case each of the line connector 9 according to the invention would not always be mounted on opposite sides, but also to suitably matching, adjacent sides of a ventilation module 1.

Figure 5 shows a schematic representation of an embodiment of a mounted on the roof 34 of a bus air conditioning or / and heating system 30 according to the invention with a ventilation unit 20 in the middle. The air conditioning and / or heating system 30 has on its right and left side two evaporator boxes 32, in which, inter alia, the heat exchanger batteries are located.

The ventilation or blower unit 20 contains, without limiting the generality, five successively assembled ventilation modules 1 according to the invention, each having a rotor and ventilation motor which can not be explicitly identified in the illustration. The power supply, control and monitoring of the fan motor is in a conductor 13, which is continued by means of conductor connector according to the invention directly from a ventilation module 1 to the next ventilation module 1, allows. The housing of the air conditioning and / or heating system 30 as well as the ventilation modules 1 can be made of injection-molded plastic or any other suitable material, such as aluminum. For example, at least a part of its roof can be designed to be partially integrated in a roof of a rail vehicle or omnibus.

In the variant of the invention as a pure ventilation system for vehicles evaporator boxes with heat exchanger batteries are not available, but only required for ventilation elements such as in an embodiment of the invention without limiting the generality of five consecutively assembled according to the invention

Ventilation modules 1, each with a not explicitly recognizable in the representation rotor and ventilation motor. The power supply, control and monitoring of the fan motor is in a conductor 13, the inventive conductor connector directly from a

Ventilation module 1 is continued to the next ventilation module 1 allows. Thus, an embodiment of the variant of the invention as a pure ventilation system for vehicles in the outer view except for the then not necessary evaporator boxes of the plant shown in Figure 5 corresponds.

Furthermore, for a ventilation unit according to the invention suitable for a ventilation, air conditioning and / or heating system according to the invention ventilation module, such as an embodiment thereof is shown in Figure 1, individually claimed patent protection.

Claims

1. A ventilation, air conditioning and / or heating system (30) for vehicles comprising at least one ventilation module (1) with a rotor (7), a fan motor (5) and a ventilation module housing (3), characterized - That the ventilation module (1) on at least one other ventilation module (1) is configured available, and - That the ventilation module (1) on at least one side (15, 15a) at least one directly connectable with a complementary line connector (9, 9a) of the / a further attachable ventilation modules / ventilation module (1) line connector (9, 9a). 2. ventilation, air conditioning and / or heating system (30) according to claim 1, wherein - The ventilation modules (1) are designed in any number available to each other, and - The ventilation module (1) has two mutually complementary configured and on different sides (15, 15a) of the ventilation module (1) located, each directly with one of / each attachable ventilation modules / ventilation module (1) line-connectable line connector (9, 9a) , 3. Ventilation, air conditioning and / or heating system (30) according to claim 1 or 2, wherein the ventilation module (1) on at least one side (15, 15 a). at least one mechanical connecting element (17, 17a) connectable with an attachable ventilation module (1) 4. ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 3, wherein the line connector provided for the line connector (9, 9a) at the same time, the mechanical connecting element (17, 17a). 5. Ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 4, wherein the one or more of the line connector (9, 9a) and the mechanical / n connecting element / s (17, 17a) of the ventilation module ( 1) for only by means of mechanical assembly of the ventilation modules (1) achievable Bewerkstellung the mechanical connection and the line connection of ventilation modules (1) are configured. 6. ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 5, wherein the ventilation module (1) on or in the ventilation module housing (3) as the line (s) (14) one or more of the or Line connector (9, 9a) of the ventilation module (1) contacted conductor track / s (13, 13a) or board / n (13, 13a) contains. 7. Ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 6, wherein of the one or more of the one or more line connector (s) (9, 9a) of the ventilation module (1) contacted line / s (14 ) next to the power supply through the line (s) (14) at least one is provided for the monitoring and / or control of the fan motor (5). 8. ventilation, air conditioning and / or heating system (30) according to any one of claims 1 to 7, wherein the ventilation modules (1) are detachably connected to each other again. 9. ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 7, wherein the ventilation modules (1) are not releasably connected to each other again. 10. Ventilation, air conditioning and / or heating system (30) according to any one of claims 1 to 9, wherein at least part of this ventilation, air conditioning and / or heating system (30) for positioning on or rooftop partly in a roof (34 ) of an omnibus or rail vehicle is designed. 11. A ventilation module (1) for a vehicle provided for ventilation, air conditioning and / or heating system (30) according to one of claims 1 to 10, wherein - The ventilation module (1) on at least one further ventilation module (1) is configured available, and - The ventilation module (1) on at least one side (15, 15a) at least one directly with a complementary line connector (9, 9a) of one / the further attachable ventilation modules / ventilation module (1) connectable line connector (9, 9a).