WO2009024269A2

WO2009024269A2 - Power supply device for the recreational and automobile industries

Info

Publication number: WO2009024269A2
Application number: PCT/EP2008/006557
Authority: WO
Inventors: Rolf König
Original assignee: Dometic Waeco International Gmbh
Priority date: 2007-08-23
Filing date: 2008-08-08
Publication date: 2009-02-26
Also published as: DE202007011801U1; WO2009024269A3; EP2183947A2

Abstract

The invention relates to a power supply device for the recreational and automobile industries, having a housing comprising an axis, and end parts loosely attached to the ends of the housing positioned in the direction of the axis, and serving as functional parts, wherein the housing has a center part configured as a pipe-like extruded part made of aluminum or the like for receiving the power source, on the two ends positioned in the extrusion direction of which a cable connector part and an operating part are attached.

Description

Power supply device for the leisure and automotive sector

The invention relates to a power supply device for the recreational and automotive sector having the features of the preamble of claim 1. These are such power supply devices whose housing has an axial or housing direction defining tubular central part and at the ends of the housing located in the axial direction having releasably attached, serving as functional parts end parts.

Such power supply devices can serve various tasks, in particular in the automotive sector and in the leisure sector. Accordingly, the power sources accommodated in the housing of the power supply device may be different. In one version, the power source can be a transformer with a downstream rectifier. The power supply device can serve as a charger for a car or other battery, but also to operate lighting equipment, fans or the like in the camping area. Here, the power is taken over a longer period of time the network. An important alternative version, in which the invention can also be implemented, is a battery as a power source in the power supply unit. In this case, the power supply device can operate lighting devices or act as a starter battery or starter auxiliary battery (so-called jump starter). Another important alternative version, in which the invention can be realized, is formed in so-called inverters, in which from a low-voltage, such as an accumulator battery, an AC voltage for electrical equipment of, for example, 230 volts is generated.

TECHNOLOGICAL BACKGROUND

Power supplies of the type described above are known from US 5,903,435 A, US 6,046,908 A and US 6,411, 514 B1. They develop some heat during operation, e.g. by transformers or rectifiers, in particular when the power supply device is designed in the desired manner as a compact device and accordingly has a space-saving housing as possible. Because of the limited space in the field of mobile application in the automotive sector and in the leisure sector, it is also necessary to improve the usability of such devices under installation conditions. Another aspect is cable management, i. a well-protected arrangement of supplying and discharging electrical lines in the form of connectable to the power supply device electrical cable.

SUMMARY OF THE INVENTION

The invention has for its object to make a generic power supply device such that the necessary cooling of the power source is improved overall.

This object is solved by the features of claim 1.

- 2 - According to a first aspect of the invention, the housing is tube-like with a tube axis parallel to the axis of the housing. The assembly comprising the electrical and electronic parts and possibly the power source can be inserted into the housing on its own chassis; Preferably, it can be inserted in the axial direction in the housing and pulled out of this. One of the end parts of the housing has a cooling air inlet and the other end part has a cooling air outlet. In the housing there is at least one flow path for the parts of the assembly circulating cooling air from the one end portion of the housing to the other. By this housing construction, a highly efficient cooling of the heat-emitting components is achieved.

According to a second aspect of the invention, the chassis comprises a board for electrical or electronic components and one to this, i. to the Gehäuseachsrichtung vertical front wall. This makes it possible to produce electrical connections from the tube end side to the module and thereby simplify cable management, among other things.

According to a third aspect, the front wall according to the second aspect directly supports the terminals of the assembly, and the terminals are externally accessible through the respective end portion of the housing.

According to a fourth aspect, at least along a part of the flow path for cooling air, there is provided a heat transfer member with cooling ribs extending parallel to the axial direction which communicate at least in part or directly with the heat-conducting part of the assembly. Preferably, the arrangement here as well as according to the second and third aspects is such that on both sides of the chassis within the housing extending in the axial direction cooling channels between the chassis on the one hand and the housing inner wall on the other hand are created, which are brought together at the end parts.

- 3 - According to a fifth aspect of the invention, a tubular central part of the housing is formed from a strand press part with parallel to the axial direction extrusion direction. This allows easy insertion and removal of the chassis of the assembly as well as efficient cooling. Also different performance sizes can be realized for a device type, without having to create new housing parts. The extruded part is kept longer or shorter, while the end parts remain the same, so that in any case the housing size must not exceed the necessary minimum.

According to a sixth aspect of the invention, the extruded part according to the fifth aspect of the invention consists of a base body and a relative to the main body in the axial direction on the base body slidable closure body. This makes it possible, inter alia, to get to the housing interior, without increasing the chassis out by the closure body is removed from the body in Gehäuseachsrichtung. As a result, not only a housing along the axial direction zweiteeilung be realized. Rather, the closure body can also complete a separate housing area, e.g. electrical fuses of the power supply unit are housed, or the closure part can serve as a separate carrier of electrical or electronic components, such as, inter alia, of electrical / electronic fuses.

According to a seventh aspect of the invention, the housing has a tubular central part made of aluminum or a similar heat-conducting material. As a result, high strength and mechanical safety for the housing and its attachment can be ensured. In addition, heat can also be dissipated via the housing jacket surface except via the cooling air flow. This is particularly assisted if, according to an eighth aspect of the invention, the middle part carries cooling ribs on at least one axis-parallel outside.

- 4 - According to a ninth aspect of the invention, when the housing end parts are made of plastic and cooling ribs located on the outside of a housing middle part continue on the outside of at least one end part, an uninterrupted housing contour is thereby produced on the cylindrical jacket surface.

According to a tenth aspect of the invention, in which the terminals of the assembly are combined in or on the one of the housing end parts, an operating part with displays, switches and / or the like is formed on the inner end part remote from the terminals. The invention thus provides, at one end part, the cable management and at the other end of the operating management of the power supply unit in each case summarized. This tenth aspect of the invention, as well as the fifth and seventh aspect of the invention, of independent inventive importance.

According to an eleventh aspect of the invention, when the operating part has an outwardly and downwardly inclined surface, so that the displays, switches and / or the like can be seen both in the axial direction of the housing and from one side surface thereof, the installation of the power supply device is thereby undermined the cramped space in the recreational and automotive sector possible.

According to a twelfth aspect of the invention, according to which longitudinal ribs on the housing are provided on a bearing surface, components which are externally added thereto, in particular longitudinally displaceable, can be inserted. These may be accessories, such as a power outlet or fasteners, such as mounting brackets for attaching the power supply unit. As a result, a high variability is created, which ensures not only a fixed connection to the power supply device, but also a particularly simple demand adjustment.

According to a thirteenth aspect of the invention, a fan is provided in the one end part in the cross-sectional area of the flow path and the connection opening

- 5 - Outdoor air is located at the end part. In particular, such connection openings may be arranged between the cooling ribs optionally provided on the end part. Thus, the respective end part takes over both the function of receiving an example electrically driven fan and the management of the ventilation flow between the outside air and the middle part of the housing.

According to a fourteenth aspect of the invention, a connection ring or connection adapter for a connection pipe is provided on one of the housing end parts in the region of cooling air connection openings. Accordingly, the power supply device to a Zuluft- or exhaust duct for cooling air can be connected, preferably to an exhaust duct, so that hot air is continued from the environment of the power supply unit. According to a fifteenth aspect of the invention, such a connection ring or connection adapter for a connection pipe can have holding members which can be clicked behind projections on the connection pipe on the outer circumference of the connection ring or connection adapter, wherein the projections and the holding members are preferably provided on the inner circumference of the connection pipe to an unintentional Loosen from the outside as far as possible to avoid. Such holding members are preferably hook-shaped and have the fan extending away flexible, radially inwardly or outwardly dückbare elements on.

According to a sixteenth aspect of the invention, are summarized in the terminals of the assembly in or on the one of the end portions, on which the terminal-carrying end portions on opposite sides of the same attachable feet provided on which the power supply device is so erected with a vertical axis, that (lower end part) with the power supply unit at a distance from the ground. Such feet can be pluggable mounted in the end part and need only be plugged in case of need. It is particularly advantageous if, according to a seventeenth aspect of the invention, the feet have means for the orderly laying of connection cables. In this case, the feet not only provide sufficient ground clearance to the

- 6 - ensuring a dust-free cooling air inflow as far as possible, but also as mechanical protection for cable management. Particularly suitable for this purpose are means according to an eighteenth aspect of the invention, according to which the feet are designed as open frames and the interior of the frame facing inside of the frame leg is provided with mutually opposite ribs between which connection cables are clamped.

According to a nineteenth aspect of the invention it is provided that an externally accessible, fuses box is provided on or in the housing. As a result, without altering the outer contour of the housing, fuses can be checked and, if necessary, replaced without having to open the housing. This aspect, like the sixteenth and twentieth aspects of the invention, is of independent inventive significance.

According to a twentieth aspect of the invention it is provided that the housing has an aluminum extruded or the like formed central part for receiving the power source, at both ends located in the extrusion direction on the one hand a cable connection part and on the other hand the control part are attached, wherein according to a twenty-first aspect of Invention has the operating part and / or the cable connecting part with the central part in a direction perpendicular to the extrusion direction plane substantially matching outer cross-section.

The above-mentioned and the claimed components to be used according to the invention described in the exemplary embodiments are not subject to special conditions of size, shape, material selection and technical design, so that the selection criteria known in the field of application can be used without restriction

Further details, features and advantages of the subject matter of the invention emerge from the subclaims, as well as from the following description of the enclosed

- 7 - Hörigen drawing and table, in which - by way of example - an embodiment of a power supply device are shown.

BRIEF DESCRIPTION

In the drawing show

1 shows a power supply device for the leisure and / or automotive sector in a perspective view.

Fig. 2 of the same power supply device, a perspective view of the lower portion of Figure 1 in an exploded view.

Fig. 3 of the power supply unit of Figure 2 a complete chassis in a perspective view.

4 shows a perspective view in installation situations of a second embodiment of a power supply device for the recreational and / or automotive sector;

5 shows a third embodiment of a power supply device for the leisure and / or automotive sector in a perspective view with feet;

Fig. 6 of the power supply unit of Figure 5 is a perspective view obliquely from below (partial).

Fig. 7 ^' of the same area of the power supply device as in Figure 6 is a perspective view obliquely from above.

- 8th - Fig. 8 of the power supply apparatus of Figure 4 is a perspective view obliquely from above in the state of a basic equipment.

Fig. 9 of the same power supply device of Figure 8 with an expansion stage

Adapter ring;

Fig. 10 of the same power supply device of Figure 8 and 9, a further expansion stage with exhaust duct. such as

Fig. 11 shows another embodiment of a power supply device for the

Leisure and / or automotive sector in perspective view.

DETAILED DESCRIPTION OF THE EMBODIMENTS

From Figures 1 to 3 it can be seen how a chassis 22 with vertical front wall 22A for receiving terminals 2OA in the central portion 10C of the housing 10 is inserted and the end portion 10A, the cooling air inlet 12A and the passage of connector plugs allowed, at this end all ports combined are. Also visible is the sliding closure body 10C ", which is guided on longitudinal guides of the main body 10C.

Figures 4 and 5 show the possibility of a hot air discharge by means of a connecting pipe 28. This is, as shown in Figures 8 to 10, connected to the cooling air outlet 12B in the end portion 10B. For this purpose, according to FIG. 9, an adapter ring 26 with holding members 26A can be fastened to the end part 10B, and the connection tube 28 can be latched to the holding members.

In order to comply with the minimum floor clearance necessary for dust-free air intake, feet 30 according to FIGS. 5 to 7 can be used, which are in the lower

- 9 - End part 1OA are either pluggable and facilitate the cable management by means of clamping ribs 3OA.

Figure 11 shows how the closure body 1OC "is selectively usable for receiving fuses and is interchangeable with a fuse box.

- 10 - LIST OF REFERENCE NUMBERS

10 housing 2OA connections

1OA lower end part 2OB control panel

1OB upper end part 2OC heat transfer element

1OC central part 2OC cooling fins

1OC main body 2OD board

1OC "lock body 22 chassis

12A Cooling air inlet 22A front wall

12B Cooling air outlet 24A connection openings

14A flow path 24B connection openings

14B Flow path 26 Adapter ring / connecting ring

16A cooling fins 26A holding members

16B Cooling fins 28 Connecting pipe

16C cooling fins 30 feet

16C longitudinal ribs 3OA ribs

18 Accessories 32A fuses

18A Fasteners 0 Module A Axis

- 11 -

Claims

Claims:

1. Power supply device for the leisure and automobile sector,

with a housing having an axis,

with releasably attached to the ends of the housing located in the axial direction, serving as functional parts end parts,

characterized,

the housing has a central part designed as a tube-like extruded part made of aluminum or the like for receiving the current source, on whose two ends located in the extrusion direction on the one hand a cable connection part and on the other hand a control part are attached.

2. Power supply device according to the preamble of claim 1, in particular according to claim 1, characterized in that the electrical and electronic parts and optionally the power source comprehensive assembly can be inserted on a separate chassis in the housing, in particular inserted and withdrawn from this, and that the chassis comprises a board with a vertical front wall and the assembly is built on the board.

3. Power supply device according to claim 2, characterized in that the front wall carries connections of the module and the connections through the respective end part are accessible from the outside.

4. Power supply device according to one of claims 1 to 3, characterized in that the end parts are made of plastic and are cooling fins on the

- 12 - Outside of at least one end part, which in particular continue on the outside of a middle part of the housing approximately existing cooling fins.

5. Power supply device according to the preamble of claim 1, in particular according to one of claims 1 to 4, characterized in that the connections of the assembly are summarized in or on the one of the end parts and that at the remote from the terminals other end part of a control unit with displays , Switches and / or the like is formed.

6. Power supply device according to one of claims 1 to 5, in particular according to claim 10, characterized in that an operating part has an outwardly and downwardly inclined inclined surface, so that the displays, switches and / or the like both in the axial direction of the housing and of the a side surface are recognizable forth.

7. Power supply device according to one of claims 1 to 6, in particular according to one of claims 5 to 11, characterized in that longitudinal ribs are provided on the housing on a supporting surface, in the accessories, such as a power socket or fasteners for mounting the power supply device, in particular longitudinally displaceable, can be inserted.

8. Power supply device according to one of claims 1 to 7, characterized in that the operating part and / or the cable connecting part with the central part in a direction perpendicular to the extrusion direction plane substantially has a Ü matching outer cross-section.

9. Power supply device according to the preamble of claim 1, in particular according to one of claims 1 to 8, wherein one of the end parts a cooling air inlet and the other end part has a cooling air outlet, and at least one flow path for the parts of the assembly circulating cooling air from the one

- 13 - End part of the housing to the other consists, characterized in that in the region of cooling air connection openings an outside, optionally on cooling fins, resting connection ring or adapter is provided for a connection pipe.

10. Power supply device according to claim 9, characterized in that distributed on the connecting ring or adapter over its circumference, in particular hook-shaped, extending away from the fan flexible, radially inwardly or outwardly wegdrückbare holding members are provided behind the jumps on the inside - Or outer circumference of the connection pipe are clickable.

11. Power supply device with terminals of the module in or on the one end part, according to the preamble of claim 1, in particular according to one of claims 1 to 10, characterized in that on which the connections wearing on opposite sides of the same attachable feet are provided in which the power supply unit can be erected with a vertical axis in such a way that the relevant (lower) end part has a distance from the ground when the power supply unit is at a standstill.

12. Power supply device according to claim 11, characterized in that the feet have means for the orderly laying of connection cables.

13. Power supply device according to claim 11 or 12, characterized in that the feet are formed as an open frame and the interior of the frame facing inside of a frame leg are provided with opposing ribs, between which connection cables are clamped.

14. Power supply device according to the preamble of claim 1, in particular according to one of claims 1 to 13, characterized in that in or on

- 14 - the housing is provided externally accessible, fuses box having.

- 15-