WO2024028082A1 - Lüftereinrichtung - Google Patents
Lüftereinrichtung Download PDFInfo
- Publication number
- WO2024028082A1 WO2024028082A1 PCT/EP2023/069633 EP2023069633W WO2024028082A1 WO 2024028082 A1 WO2024028082 A1 WO 2024028082A1 EP 2023069633 W EP2023069633 W EP 2023069633W WO 2024028082 A1 WO2024028082 A1 WO 2024028082A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- circuit board
- fastening device
- air
- fan device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
- H05K7/20572—Forced ventilation of a gaseous coolant within cabinets for removing heat from sub-racks, e.g. plenum
Definitions
- the invention relates to a fan device consisting at least of an electric fan.
- an air conditioning arrangement in particular a cooling arrangement, at least comprising a control cabinet which, in the usual installation during operation, is provided with a support device having horizontally extending mounting webs, on the front of which facing the control cabinet doors, electrical and/or air-conditioning devices to be air-conditioned Electronic devices are arranged on floors one above the other and next to each other, with an air conveying device being provided with which an air flow from top to bottom can be forced on the back of the support device and with partial air flows of the air flow between adjacent mounting bars through to the front of the mounting bars and to the front devices to be air-conditioned are attached to the mounting bars, whereby a device which actively increases the flow speed of the relevant partial air flow is provided in the form of an electric fan for a targeted, area-wise reinforcement of the air-conditioning effect at at least one selected location spatially assigned to a device to be air-conditioned.
- so-called built-in fans are used as electrically operated fans, which, for example, have only a very
- intensive air conditioning in particular cooling
- the invention is based on the object of further improving known fan devices.
- the fan device consists at least of an electric fan, a circuit board, and a fastening device, wherein the fan is attached to the circuit board and can be supplied with power via this circuit board and the fastening device is used to fix the circuit board and fan to third-party components, such as mounting bars in control cabinets .
- the circuit board is a fundamentally suitable carrier for electronic components, it is used for mechanical fastening and electrical connection, with the circuit boards used here being made of electrically insulating material with conductive connections adhering to it in the form of individual conductor tracks. Fiber-reinforced plastic should serve as the insulating material and the conductor tracks mentioned are preferably etched from a thin layer of copper. Such In the invention, the circuit board is used to attach the respective fan and to implement its power supply, which is realized in a cost-effective manner and saves space and the otherwise usual high wiring effort can be eliminated.
- the combination of fan with circuit board can be attached to third-party components, such as mounting bars in control cabinets, in a detachable manner at defined locations in the control cabinet in order to be able to temper, in particular cool, electrical and/or electronic components arranged adjacently. If a different positioning of the fan device in the control cabinet proves to be advantageous during operation, the fan device can easily be implemented in this way. Since the combination of fan, circuit board and fastening device requires very little installation space, the solution mentioned is also particularly suitable for very small control cabinets, for example with only one control cabinet door.
- the electric fans used here can be operated with conventional 24 volts and, using an additional power supply, the 24 volts can also be reduced to 12 volts, so that 12 volt fans can also be used.
- the use of 12 volt fans allows energy-saving operation and, even if a correspondingly large amount of heat is generated in the small-volume control cabinet, reliable cooling can be achieved inside.
- the circuit board has individual conductor tracks which, provided with at least one cable clamp, serve to connect electrical conductors which are connected to a power supply source, preferably in the form of a power supply unit.
- a power supply source preferably in the form of a power supply unit.
- the free strand of an otherwise electrically insulated conductor or cable can be inserted into releasably connect to the cable clamp via a plug or clamp connection and in this way establish an electrical connection to the connected, assigned conductor track.
- the wiring effort for establishing an electrical connection to the fan device in the control cabinet is significantly reduced and is also designed to be safe, which increases operational safety.
- fan device in order to realize a parallel connection of at least two fans, two cable clamps are arranged on the circuit board and connected to the assigned conductor tracks.
- so-called fan banks can be implemented with several fans arranged spatially next to one another in order to increase the fan performance with individual fans of the same design.
- the circuit board has an opening which forms the inflow opening for the fan, preferably designed as an axial fan.
- the opening in the circuit board is surrounded by fan bars, preferably in an arch or cross shape, which are at least partially attached to the circuit board with their free ends and at the same time form part of the holder for a fan housing of the fan.
- the suction opening of the fan in particular the axial fan, is integrated into the circuit board in a space-saving manner and an air flow in the direction from top to bottom in the control cabinet in its usual installation arrangement is preferably achieved during operation by means of the axial fan.
- the fastening device in plate form is connected to the circuit board in an extension to the circuit board and has at least one elastically flexible clamp body, the clamping gap of which is in the The initial position before assuming a clamping position is smaller than the assignable wall thickness of the third component, in particular in the form of the mounting web.
- a fixing option for the fan device within the control cabinet is created, in which a cooling air flow is guided from top to bottom in a rear area of the control cabinet and the components to be cooled are arranged in the front area of the control cabinet, with the front and rear areas passing through the supporting device with the mounting bars and the wiring combs arranged thereon are separated from one another.
- the cabling for the fan is easily accessible on the front of the relevant mounting bar arrangement together with the supporting device. Due to the forwardly extending fastening device in plate form with the cable guide, a kind of counterweight is formed, which relieves the parts of the clamp body in the clamping position and thus leads to an improved clamping effect on the mounting web.
- the terminal body projects to the same side as the fan and on its side facing away from the circuit board, the fastening device has individual openings for at least partially guiding the electrical conductors from the power supply source to the assignable cable clamp on the top of the fan device as a whole.
- the terminal bodies lie in the same installation level as the wiring combs adjacent to the side of the respective fan device, which are placed on the mounting webs.
- the plate-shaped fastening device is cranked and has a partial area with the terminal body on the underside of the circuit board in the direction of the fan housing of the fan is fixed to this, with the other section being extended
- the circuit board is arranged on the top side in a common plane.
- the fan housing which is preferably made of plastic, has a thermally insulating effect and the plate-shaped fastening device, which is preferably made of a metal material, with its openings for the conductor routing allows good heat dissipation in the front air conditioning area of the control cabinet.
- the terminal body is arranged in a plane transverse to the common plane, formed from the top side of the circuit board and fastening device, on the opposite underside of the fastening device, so that the fan is essentially moved in the same distance in one direction and the fastening device with the cable openings protrudes over a mounting bar on the other side.
- the invention further relates to an air conditioning arrangement, in particular a cooling arrangement, at least comprising a control cabinet with at least one horizontally extending mounting web, on the front of which facing at least one control cabinet door, electrical and/or electrical devices to be air-conditioned are arranged on floors one above and next to one another, with one Air conveying device is provided, with which an air flow from top to bottom can be forced on the back of the respective mounting web, and a fan device which actively increases the flow speed of the relevant partial air flow is provided for a targeted air conditioning effect at at least one selected location spatially assigned to a device to be air conditioned , consisting of the combination of an electric fan with a circuit board and associated fastening device, which are combined to form a structural unit.
- a cooling arrangement at least comprising a control cabinet with at least one horizontally extending mounting web, on the front of which facing at least one control cabinet door, electrical and/or electrical devices to be air-conditioned are arranged on floors one above and next to one another, with one Air conveying device is provided, with which
- Figure 1 is a perspective top view of the fan device as a whole
- Figure 2 is a side view of the fan device according to the
- Figure 3 is a top view of a layer of the printed circuit board used for a fan
- Figure 4 shows the fan device shown in Figures 1 and 2 in the fixed state on a mounting bridge
- FIG. 5 shows a perspective side view of the mounting bar shown in FIG. 4 with a total of three adjacent fan devices according to FIG. 1.
- the fan device shown in Figure 1 as a whole consists of at least an electric fan 10, a circuit board 12, and a fastening device 14.
- the fan 10 is attached to the circuit board 12 and can be supplied with power via this circuit board 12, the fastening device 14 as a whole Fixing the circuit board 12 and fan 10 on third-party components is used, such as on mounting bars ( Figures 4 and 5) in control cabinets.
- control cabinets are state of the art and are known in a variety of embodiments with one or more control cabinet doors (see EP 3 024 310 A2 for example).
- each pair 28, 30 has a cable clamp 32, 34, which, when pressed in the usual way by applying a finger force, releases a cable opening in the front area 36 into which an electrical connecting wire of an otherwise insulated conductor or cable can be inserted.
- the free opening cross-section is reduced by removing the finger force and being spring-loaded and the line is fixed in a current-carrying manner in the respective cable clamp 32, 34.
- the electric motor of the fan 10 can be connected to a voltage or power supply source via appropriate connecting cables (not shown), for example in the form of a 24 volt supply or using a power supply with a reduced supply voltage of preferably 12 volts.
- appropriate connecting cables not shown
- the first cable By connecting the first cable to a live
- the fan 10 is supplied via the cable clamp 32 and, by implementing a parallel connection via the further second cable clamp 32, the power supply of a further fan 38, preferably in a row, is secured on the input side, which in turn can supply a third fan 40 accordingly (see Figure 5). is connected with its input side to the output side of the fan 38.
- the circuit board 12 has a circular opening 42, which forms the inflow opening for the fan 10, which is designed as an axial fan.
- the opening 42 in the circuit board 12 is covered at the top by fan bars 44, each of which is attached in an arc shape at a right angle to the circuit board 12 with its free ends, at the same time a part of the holder 46 for a fan housing 48 of the fan 10, 38, 40 form.
- the holder 46 has four individual bolts 50, which pass through the free corner areas of the fan housing 48 and the fan housing 48 is fixed to the underside of the circuit board 12 by means of a corresponding screw connection.
- the access openings 52 provided for this purpose for the retaining bolts 50 are shown in the form of bores in Figure 3.
- the respective fan 10, 38, 40 is designed as an axial fan and forces the air from top to bottom during operation as shown in FIG.
- all fans 10, 38, 40 have the same structural design and are composed of identical parts, which helps reduce manufacturing costs.
- the fastening device 14 in plate form adjoins the circuit board 12 in extension to the latter.
- the fastening device 14 has a clamp body 58 on its underside with two mutually elastically flexible clamping legs 60, which delimit a clamping gap 62 between them.
- the free width of the clamping gap 62 in the starting position shown in FIG according to Figure 4 results.
- the fan device is fixed to the assignable mounting web 16 with a predeterminable clamping force.
- the terminal body 58 projects to the same side as the fan 10 with its fan housing 48.
- the fastening device 14 has individual openings 66 on its side 64 facing away from the circuit board 12, which are designed as longitudinal slots and arranged parallel to one another and each serve to guide an individual cable, which is assigned to the Cable clamps 32, 34 are guided.
- the cable routing and in particular the cable fastening on the cable clamps 32, 34 is relieved of tensile forces, so that a secure connection connection is established via the strands in the clamping openings of the cable clamps 32, 34.
- the plate-shaped fastening device 14 is cranked along two ealz lines 68 and is fixed to the underside of the circuit board 12 in the direction of the fan housing 48 of the fan 10 with its one partial area 70 together with the clamping body 58 on the underside of the circuit board 12. This is done using two rivets 72, which, as shown in Figure 3, pass through an associated opening 74 in the circuit board 12 opposite one another.
- the Another portion 76 is arranged in an extension of the circuit board 12 on the top of the fan device in a common horizontal plane. In this way, the terminal body 58 runs in a fictitious vertical plane transverse to the common plane, formed from the top of the circuit board 12 and the fastening device 14, and is otherwise arranged on the opposite underside of the fastening device 14.
- the invention also relates to an air conditioning arrangement, in particular a cooling arrangement, at least having a control cabinet, as shown by way of example in EP 3 024 310 A2, with at least one mounting web 16 which runs horizontally in the operating position of the control cabinet, on the front side 78 and to that extent at least one control cabinet door (not shown), electrical and/or electronic devices to be air-conditioned are arranged on floors above and next to one another.
- an air conditioning arrangement in particular a cooling arrangement, at least having a control cabinet, as shown by way of example in EP 3 024 310 A2
- at least one mounting web 16 which runs horizontally in the operating position of the control cabinet, on the front side 78 and to that extent at least one control cabinet door (not shown)
- electrical and/or electronic devices to be air-conditioned are arranged on floors above and next to one another.
- Air flow actively increasing fan device is provided, which in the embodiment according to Figure 3 consists of three side-by-side fan devices with fans 10, 38, 40.
- Individual wiring combs 80 which are only shown in stylized form in FIG. 5, can be used on the mounting web 16 to guide cables for the electrical and electronic devices.
- the course with the wiring combs 80 is interrupted in order to control the individual fan settings.
- Directions with the fans 10, 38, 40 can be inserted into the gap created in this way.
- the clamp body 58 with its clamping gap 62 engages over the external, free web end 82 of each mounting web 16 (see Figure 4).
- the special feature of the invention lies, among other things, in having created a holder in the form of a single or multi-layer circuit board 12 for the individual fans 10, 38, 40.
- the fan device as a unit can be used in a predetermined grid size on mounting bars 16 in control cabinets, the mentioned grid dimension taking into account the required grid with the wiring combs 80.
- the circuit board 12 therefore serves as a central, mechanically supporting element, which can also be equipped with electronic components, for example in the form of the conductor tracks 20, 22 shown.
- the cable terminals 32, 34 serving as connection terminals can also be integrated on the circuit board 12 as part of an electrical control of the respective fan 10, 38, 40.
- the terminals 32, 34 for connecting and operating the respective fan 10, 38, 40 are accessible from the front via the front 78 and can be operated when installed in the control cabinet.
- the electrical supply lines can be connected in the shortest possible time without errors, so that prompt installation is promoted.
- a voltage conversion from 24 volts to 12 volts can also be implemented directly with power supply components on the circuit board 12, without the need for additional external components. This has no equivalent in the prior art.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23742072.4A EP4566426A1 (de) | 2022-08-02 | 2023-07-14 | Lüftereinrichtung |
| CN202380056876.5A CN119654973A (zh) | 2022-08-02 | 2023-07-14 | 风扇装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022002793.3 | 2022-08-02 | ||
| DE102022002793.3A DE102022002793A1 (de) | 2022-08-02 | 2022-08-02 | Lüftereinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024028082A1 true WO2024028082A1 (de) | 2024-02-08 |
Family
ID=87340668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/069633 Ceased WO2024028082A1 (de) | 2022-08-02 | 2023-07-14 | Lüftereinrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4566426A1 (de) |
| CN (1) | CN119654973A (de) |
| DE (1) | DE102022002793A1 (de) |
| WO (1) | WO2024028082A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079438A (en) * | 1989-01-30 | 1992-01-07 | Heung Lap Yan | Circuit module fan assembly |
| EP0902513A2 (de) * | 1997-09-10 | 1999-03-17 | Friedrich Lütze Elektro Gesellschaft Mit Beschränkter Haftung | Vorrichtung zur Befestigung und Verdrahtung einer Vielzahl von elektrischen Einheiten, insbesondere in einem Schaltschrank |
| EP2072832A2 (de) * | 2007-12-17 | 2009-06-24 | Ebm-Papst St. Georgen GmbH & CO. KG | Miniaturlüfter |
| US20130155609A1 (en) * | 2011-12-20 | 2013-06-20 | Inventec Corporation | Server |
| EP3024310A2 (de) | 2014-11-24 | 2016-05-25 | Friedrich Lütze GmbH | Klimatisierungsanordnung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986003089A1 (fr) | 1984-11-15 | 1986-05-22 | Fujitsu Limited | Structure de refroidissement d'une etagere pour appareils electroniques |
| US6185098B1 (en) | 2000-01-31 | 2001-02-06 | Chatsworth Products, Inc. | Co-location server cabinet |
| EP1464106A1 (de) | 2002-01-11 | 2004-10-06 | ebm-papst St. Georgen GmbH & Co. KG | KLEIN- ODER KLEINSTLüFTER |
| JP7264719B2 (ja) | 2019-05-21 | 2023-04-25 | ファナック株式会社 | 電気機器の本体に対するファンユニットの着脱構造、電気機器の本体とファンユニットとを接続するコネクタ、及び電気機器 |
-
2022
- 2022-08-02 DE DE102022002793.3A patent/DE102022002793A1/de active Pending
-
2023
- 2023-07-14 CN CN202380056876.5A patent/CN119654973A/zh active Pending
- 2023-07-14 EP EP23742072.4A patent/EP4566426A1/de active Pending
- 2023-07-14 WO PCT/EP2023/069633 patent/WO2024028082A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079438A (en) * | 1989-01-30 | 1992-01-07 | Heung Lap Yan | Circuit module fan assembly |
| EP0902513A2 (de) * | 1997-09-10 | 1999-03-17 | Friedrich Lütze Elektro Gesellschaft Mit Beschränkter Haftung | Vorrichtung zur Befestigung und Verdrahtung einer Vielzahl von elektrischen Einheiten, insbesondere in einem Schaltschrank |
| EP2072832A2 (de) * | 2007-12-17 | 2009-06-24 | Ebm-Papst St. Georgen GmbH & CO. KG | Miniaturlüfter |
| US20130155609A1 (en) * | 2011-12-20 | 2013-06-20 | Inventec Corporation | Server |
| EP3024310A2 (de) | 2014-11-24 | 2016-05-25 | Friedrich Lütze GmbH | Klimatisierungsanordnung |
Non-Patent Citations (1)
| Title |
|---|
| STEGO ELEKTROTECHNIK GMBH: "TECHNICAL DATASHEET Stegojet SJ019", 18 June 2013 (2013-06-18), XP055329615, Retrieved from the Internet <URL:http://docs-europe.electrocomponents.com/webdocs/125d/0900766b8125d573.pdf> [retrieved on 20161215] * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022002793A1 (de) | 2024-02-08 |
| CN119654973A (zh) | 2025-03-18 |
| EP4566426A1 (de) | 2025-06-11 |
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