WO2010043434A1

WO2010043434A1 - Fan device for a vehicle

Info

Publication number: WO2010043434A1
Application number: PCT/EP2009/060599
Authority: WO
Inventors: Andreas Schiel; Dubravko Barkic; Martin Huber; Christian Aumann; Detlef Prahl
Original assignee: Robert Bosch Gmbh
Priority date: 2008-10-16
Filing date: 2009-08-17
Publication date: 2010-04-22
Also published as: DE102008042897A1; EP2347135B1; EP2347135A1; JP2012505990A; US20110229349A1

Abstract

The invention relates to a fan device for a vehicle, the fan device comprising a regulating device and a motor for actuating a ventilation device of the fan device, characterized in that the fan device is designed such that the motor and the regulating device can be cooled by a common air flow of the ventilation device.

Description

FAN DEVICE FOR A VEHICLE

State of the art

The invention relates to a blower device for connection to an air conditioning system or a blower unit in a vehicle, e.g. a motor vehicle.

Normally, it is necessary to supply sufficient air to an engine of a blower device for internal cooling. This cooling air is usually supplied by means of an air duct, which establishes a connection between a motor housing and a customer-supplied blower installation or air conditioning system.

Furthermore, a control device for driving a fan device of the vehicle must be cooled. For this purpose, the heat sink device of the regulator device is usually introduced into the wall of the blower housing of the blower device, where it lies directly in the tangential air flow of the blower. Alternatively, the regulator device can also be arranged in the immediate vicinity of or below the fan device of the fan device, so that the heat sink lies in the radial air flow of the fan device.

According to the invention, there is now provided a fan device with improved cooling of the regulator device and the motor.

The fan device according to the invention, in particular for a vehicle, has a regulator device and a motor for actuating a fan device of the fan device, wherein the fan device is designed such that the motor and the regulator device can be cooled via a common air flow.

Such a blower device has the advantage that no separate precautions must be taken or separate interfaces must be provided in order to cool the control device and the motor appropriately. As a result, manufacturing and assembly costs can be reduced. In addition, the adaptation to a customer-side blower system or an air conditioning system is considerably simplified. The fan device according to the invention also provides a module in which the cooling of the motor and the regulator device is already integrated.

Further preferred embodiments are described in the subclaims.

In one embodiment of the invention, the regulator device is arranged behind or below the fan device. This has the advantage that the regulator device can not adversely affect the air flow generated by the fan device.

In a further embodiment according to the invention, the fan device has an air duct guide, in which part of an air flow of the fan device is guided past the regulator device and on to the engine. This has the advantage that with a part of the air flow of the fan device, both the regulator device and the engine can be cooled. As air flow is doing a part of the outflowing radially from the fan device

Air flow used, which then flows tangentially to the regulator device.

In a further embodiment of the invention, the air duct guide (or the housing of the blower device in which also the motor and the fan device are arranged) on a partition wall element, which the

Regulator device of the fan device substantially in the axial direction separates, while the partition wall element leaves the air duct guide or the housing of the blower device substantially in the radial direction to the regulator means open. The axial separation has the advantage that the regulator device does not adversely affect the air flow of the fan device. However, since the air duct guide or the housing of the blower device does not separate the regulator device from the fan device in the radial direction, but is open in this region, an essentially tangentially flowing part of the air mass flow of the fan device can be used for this purpose to cool the regulator and additionally the engine. Embodiments of the invention are explained below with reference to the schematic figures of the drawing. Show it:

1 is a perspective view of a blower device with a connectable blower housing device.

FIG. 2 shows a perspective view of a further blower device with an already connected blower housing device; FIG.

3 is a perspective view of a blower housing device for a blower device with a separate regulator position;

4 shows a perspective view of a further blower device with a connectable fan housing device and a regulator device, which is arranged below a fan device;

5 shows a further perspective view of the blower device according to FIG. 4;

6 shows a perspective view of a blower device with a connected blower housing device according to an embodiment of the invention;

FIG. 7 is a perspective view of the blower device of FIG. 6 without fan housing means; FIG.

8 shows a partial sectional view through the fan device and the connected fan housing device according to FIG. 6;

9 is a partial sectional view through the blower device and the blower housing device according to FIG. 6; and

10 is a partial sectional view through the blower device according to FIG. 7.

In all figures, identical or functionally identical elements and devices have been provided with the same reference numerals, unless stated otherwise. In Fig. 1, a perspective view of a blower device 10 according to the prior art is first shown. The fan device 10 in this case has a fan device 12, which sucks air from the environment and, for example, further to an air conditioner or a blower unit of a vehicle via an associated fan housing device 14 passes. The housing device, for example an air conditioning system with which the blower device 10 can be connected, for forwarding the air flow is not shown in FIG. 1 for reasons of clarity. In addition, a motor 16 is provided which actuates the fan device 12. Here, the motor 16 can be controlled, for example via an external regulator device, as shown for example in the following Fig. 3, or alternatively, for example, via a simple actuator in the form of switches in the vehicle.

FIG. 2 shows a perspective view of a further blower device 10. The blower device 10 also has a fan device 12. This sucks in air from the environment and the air mass flow then flows in the radial direction from the fan device 12 out into a blower housing means 14. The blower housing means 14 directs the air mass flow to a connected to the blower device 10 air conditioning or blower system (not shown). For this purpose, the fan housing device 14 at its end a mounting flange 18. In this case, the motor 16 for actuating the fan device 12, for example via a corresponding actuator, e.g. operated in the form of one or more switches in the associated vehicle. A regulator device, for example for the fine control of the motor 16, is not provided in the present case.

Furthermore, FIG. 3 shows a perspective view of a blower housing device 14 of an air conditioning system or a blower unit for connection to a blower device (not shown), for example an air conditioning system. In this case, a blower can be used as a blower device, as shown in FIG. In this case, an external regulator device 20 is provided, which is arranged at a separate controller position on the air channel device 12 of the air conditioner. In this case, the regulator device 20 is cooled by the air mass flow which flows out of a fan device of the blower device to the connected air conditioning or blower system. FIG. 4 shows a further perspective view of a blower device 10 according to the prior art. The blower housing device, which is connected to the blower device 10, is not shown for reasons of clarity. As is apparent from Fig. 4, a regulator means 20 is provided under the fan means 12 and a blade ring 22, for driving the motor 16 of the fan means 12. The controller means 20 has as a cooling body means 24 on one side, for example, a surface of nubs, eg aluminum knobs , via which the regulator device 20 can be cooled. The regulator device 20 with its heat sink device 24 lies in the radial airflow of the fan device 12.

In Fig. 5, the blower device 10 is shown in FIG. 4 from the side of the motor 16 from. Below the nub surface of the heat sink device 24, the electronics 26 of the regulator device 20 is provided and, for example, a connector 28 for the regulator device 20th

Conventional embodiments of fan devices have several disadvantages. Thus, an interface must be defined and provided between the blower device and the air conditioning or blower unit of a vehicle, via which the air conditioning or blower unit can supply the vehicle with air, e.g. Cooling air, is supplied.

Furthermore, this interface typically requires different constructive solutions for CW (Clockwise) and CCW (Counter Clockwise) motors.

The design and dimensioning of this interface must be carefully coordinated between customer and supplier. Each air conditioning system or each customer blower device in the vehicle requires a separate constructive solution. The cooling capacity is also heavily dependent on where in the customer blower device this air tap is placed. The quality can only be assessed in assembly with the customer fan. Such an interface, however, represents a potential weak point, for example in terms of tightness and tolerances. It requires a lot of effort in terms of design and manufacture. If the regulator device is arranged at any point in the blower housing of the blower device, this results in similar disadvantages in the design of the cooling of the regulator device as in the air tap for the engine cooling. That is, the regulator device is not optimally cooled, for example, or, for example, leads to an undesired impairment of the air flow of the fan device due to its installation position.

Furthermore, in such an embodiment of the fan device, the fan device consists of two separate modules. If the regulator device is arranged in the radial air flow of the fan device on a module carrier of the fan device, then the regulator device must be designed so that on the one hand the heat sink is sufficiently in the air stream to be cooled and on the other hand the regulator device can be accommodated in the limited space , As a rule, this leads to complex and expensive solutions, in particular in connection with the special form of the fan device. A heat sink of the control device which also protrudes into the radial air flow of the fan device, causes a disturbance of the air flow. This in turn leads to a reduction of the blower output.

According to the invention, an improved blower device 10 with an integrated regulator device 20 is now provided.

FIG. 6 shows a blower device 10 according to an embodiment of the invention in a perspective view from the direction of the motor 16 of the blower device 10. In this case, the blower device 10 is connected, for example, to a blower housing device 14 which is arranged essentially completely around a ventilator device. This can be connected as a separate part with this or be part of the blower device 10.

For fixing a regulator device 20, a receptacle 32 is arranged in a housing section below the fan device. In the present case, an air flow is sucked in by the fan device and then a part of the air flow along the regulator device 20 is led to the motor 16 in order, for example, to cool it as well. In Fig. 7, only the blower device 10 is shown, without the connectable with her fan housing device. In this case, the blower device 10 is shown from the direction of the entrance of the fan device 12. Here, below the fan device 12, the regulator device 20 is arranged in a receptacle 32 in the housing or housing section 30. The regulator device 20 is closed or disconnected in the axial direction toward the fan device 12. This is achieved by providing a dividing wall member 34 between the regulator means 20 and the fan means 12. The fan device 12 is designed to be open to the regulator device 20 in the radial direction.

The partition element 34 has for this purpose e.g. at least one opening 36 in the radial or in the substantially radial direction. In this way it is achieved that a part of the air flow of the fan device 12 can flow to the regulator device 20 or to the heat sink device 24, without the air flow of the fan device 12 is affected by the regulator device 20. In this case, the control device 20 has, for example as the heat sink device 24, a surface with nubs 38, e.g. with aluminum studs which are coolable by means of the air flow of the fan device 12. However, any other type of heat sink device 24 may be used. The illustration in FIG. 7 is purely exemplary. Under the heat sink device 24 can i.a. the electronics 26 of the regulator device 20 are provided.

FIG. 8 shows the blower device 10 according to the invention and the external blower housing device 14 connected to it, as well as the regulator device 20 in the receptacle 32 in a partial sectional view. The control device

20 has below its heat sink device 24, in addition to its electronics 26, for example, a connector plug device 28. Furthermore, the receptacle 32, in which the regulator device 20 is arranged, for example, in the axial direction to the fan device 12 towards closed, through the corresponding partition element 34. Thus, we formed a first air duct section 40, in which the fan device 12 is arranged, and a second Air duct section 42 above, in which the regulator device 20 is arranged. In the radial direction, the receptacle 32 is open in this case, so that the receptacle 32 can be flooded with the regulator device 20, for example, by a tangentially outflowing air of the ventilating device 12. In other words, this provides a kind of underfloor ventilation to the regulator device 20 suitable to cool, but without obstructing the air flow of the fan device 12. In this case, the two air duct sections 40, 42 are connected to each other in the radial direction, so that a part of the air flow of the fan device 12 can flow to the regulator device 20 and then to the motor 16.

As shown in the sectional view of the fan device 10 in FIG. 9, the regulator device 20 is installed in this receptacle 32 so that its heat sink device 24 lies in the tangential or substantially tangential air flow. Furthermore, this receptacle 32 is connected via the second air duct section 42 with the interior of the motor housing, so that at the same time a part of the air flow of the fan device 12 can be tapped and the motor 16 can be supplied to cool this example.

The air duct guide is, as shown in Fig. 9, executed twice substantially in a symmetrical arrangement. In this case, air is first sucked in via the fan device 12, as indicated by the arrow in FIG. 9. Subsequently, the air mass flow in the radial direction exits from the fan device 12. Thereby a part, e.g. larger part of the air flow in the first air duct section 40 and from there into the connected external blower housing device 14, which supplies the air mass flow, for example, a connected air conditioning or blower system. Another part of the air flow or a substantially tangentially flowing air flow passes into the second channel section 42 of the blower device 10, since the receptacle 32 is closed by the partition wall element 34 only in the axial direction to the fan device 12 out, but not in the radial direction. Thus, the air flow following the fan device 12 flows, for example, through an opening 36 to the receptacle 32 or along the regulator device 20 and its heat sink device 24 and finally to the motor 16 and, for example, carbon brushes of the motor 16. Thus, both the regulator device Be suitably cooled, as well as the motor 16, without the air flow of the fan device 12 is impaired.

For this purpose, the fan device 12 is, as described above, separated from the regulator device 20 in the axial direction by the partition wall element 34, so that the air flows through the first and second channel sections 40, 42 can not negatively influence each other. The partition member 34 is formed in the example, as shown in Fig. 9, for example, with a conical base 44. However, it can also have a flat base or any other shape, provided that the air guide along the Reglereinrich- device 20 is given to the motor 16. In addition to the base 44, the partition wall member 34, for example, in addition to a side wall portion 46 which forms part of the second air duct portion 42 and at least partially separates it from the blower housing means 14, the air from the fan device 12, for example, an air conditioner, etc. supplies.

As described above, part of the air mass flow of the fan device 12 flows in the direction of the regulator device 20 and from there outwards in the direction of the motor 16 via the second air channel section 42. The other or larger part of the air mass flow of the fan device 12 flows through the first air channel section 40 radially outward and from there, for example in a connected air conditioning or blower system of a vehicle.

FIG. 10 shows a further sectional view of the fan device 10 according to the invention, wherein the fan housing device connectable thereto is not shown. The regulator device 20 in the receptacle 32 has, for example, a connection plug 28 in addition to the heat sink device 24 and the electronics 26. Furthermore, the e.g. partially circumferential side wall element 46 and the conical base 44 of the partition wall element 34 shown. In addition, the course of the air mass flow from the fan device 12 to the regulator device 20 and the motor 26 is indicated by arrows along the air passage sections 40, 42, as well as in FIG. 9.

According to the invention, the regulator heating and the engine cooling are integrated in a common structural solution and need not be realized separately from each other. In addition, this solution is completely integrated in the fan module or in the fan device. The invention has the advantage that no extra interfaces are required for tapping the cooling air for the engine and the regulator device with respect to a customer air conditioning or blower system. The installation interface to the customer is much easier and more robust. Another advantage of the blower device according to the invention is that the positioning of the underfloor ventilation at the periphery of the blower device can be set independently of a customer air conditioner or customer blower system. The design is largely independent of the customer's design. The number of customer-specific variants is reduced. Furthermore, the cooling capacity for the engine and the regulator device is significantly less dependent on the customer's design and can be largely optimized without the customer blower system. Due to the essentially symmetrical design, the design can be used equally for CW and CCW blowers. This also significantly reduces the number of items required. With the underfloor ventilation construction, there is also sufficient installation space for a standard control device. There is no need to use a specially adapted and complex heat sink device. Through the upper cover to the fan device by means of the partition wall element of the radial air flow remains shielded and is not disturbed. The underfloor ventilation also proves to be relatively robust in terms of different receiving cross section and different cross-sections of blower housing devices. About the design and arrangement of the individual cross-sections of the flow rate of the cooling air flow can be further optimized.

The blower device can be delivered as a blower module, as shown in Fig. 7, which later with a customer blower housing means, e.g. an air conditioner, can be connected. However, the blower device can also be provided with its own blower housing device, as shown for example in FIG. 6, and connected via a corresponding interface to a customer-side air conditioning or blower installation. The blower housing device has, for example, a radially and / or axially expanded section at the end, as shown in FIG. The end section of the blower housing device can hereby additionally be used as an interface for connection to an air conditioning or blower installation of a vehicle, e.g. Motor vehicle, be formed.

Claims

claims

1 . A blower device for a vehicle, the blower unit (10) having a regulator device (20) and a motor (16) for actuating a ventilator device (12) of the blower device (10), characterized in that the blower device (10) is designed in this way in that the motor (16) and the regulator device (20) can be cooled via a common air flow of the fan device (12).

2. Blower device according to claim 1, characterized in that the regulator device (20) is arranged behind or below the fan device (12).

3. Blower device according to claim 1 or 2, characterized in that a part of an air flow, for example, a substantially tangentially outflowing air flow, the fan device (12) on the control device (20) via an air duct guide (40, 42) over to the motor ( 16) is feasible.

4. Blower device according to claim 3, characterized in that the air duct guide (40, 42) has a partition wall element (34) which separates the control device (20) from the fan device (12) in the axial direction, while the partition wall element (34) the air duct guide (40, 42) in the radial direction to the regulator means (20) leaves open.

5. Blower device according to one of claims 3 or 4, characterized in that the air duct guide (40, 42) has a partition wall element (34) which partially separates the regulator device (20) from the fan device (12) and a first air duct section (40). in which the ventilator device (12) is provided and a second air duct section (42) in which the regulator device (20) is provided, the two air duct sections (40, 42) being connected to one another.

6. Blower device according to at least one of claims 1 to 5, character- ized in that the control device (20) has a cooling body device (24), for example at least one nub surface (38), wherein the Regulator means (20) in such a receptacle (32) of a housing portion (30) of the fan device (10) is receivable, so that the cooling body means (24) by the air flow of the fan device (12) can be flowed against or cooled.

7. Blower device according to at least one of claims 3 to 6, characterized in that the air duct guide (40, 42) has a first air duct section (40) for directing a portion of the air mass flow of the fan device (12) to another system, for example an air conditioner or Blower system.

8. Blower device according to at least one of claims 3 to 7, characterized in that a first air duct section (40) of the air duct guide (40, 42) with a fan housing means (14) is connectable, which air of the fan device (12) to a plant, for example an air conditioning or

Blower unit passes, wherein the blower housing means (14), for example, a part of the blower device (10) and / or part of the system.

9. Blower device according to at least one of claims 4 to 8, characterized in that the partition wall element (34) has a base (44) which separates the regulator device (20) substantially in the axial direction of the fan device (12) or the first and second air duct sections (40, 42) and wherein the partition wall element (34) optionally additionally comprises a side wall element (46) which at least partially separates the second air duct section (42) from a blower housing device (14), which air of the fan device ( 12) one to the housing means (10) connectable An-hage supplies.

10. Blower device according to at least one of claims 1 to 9, characterized in that the blower device (10) has a CW or CCW

Motor has.