EP2262937B1 - Dispositif avec élément de puissance refroidi pour la fabrication de fil fantaisie - Google Patents

Dispositif avec élément de puissance refroidi pour la fabrication de fil fantaisie Download PDF

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Publication number
EP2262937B1
EP2262937B1 EP09722322.6A EP09722322A EP2262937B1 EP 2262937 B1 EP2262937 B1 EP 2262937B1 EP 09722322 A EP09722322 A EP 09722322A EP 2262937 B1 EP2262937 B1 EP 2262937B1
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EP
European Patent Office
Prior art keywords
housing
cooling
power part
cooling plate
part according
Prior art date
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Active
Application number
EP09722322.6A
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German (de)
English (en)
Other versions
EP2262937A1 (fr
Inventor
Erwin Tschümperlin
Walter Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amsler Tex AG
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Amsler Tex AG
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Publication of EP2262937A1 publication Critical patent/EP2262937A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements

Definitions

  • the invention relates to a power unit of a control unit of a device for producing effect yarn, according to the preamble of the independent claim, and the control unit and the device itself, and a ring spinning machine with such a control unit.
  • nubs and flames conventional ring spinning machines can be equipped or retrofitted with special devices that have an additional differential drive, which superimposed to the lower cylinder of the drafting quickly and precisely controlled to basic speed an additional speed component.
  • the resulting short-term extendable stretching of the roving / sliver leads to an increased mass supply, and thus then to the desired thickening points in the spun yarn of about 3 to 10 cm in length.
  • DE-A-4041301 discloses such a method and apparatus for producing a fancy yarn on a ring spinning machine. Shown is a compact, precisely adjustable spinning machine for the production of fancy yarns. The speed variations of the drafting systems required for effect yarn production are made possible by means of servomotors and an electronic control system. The mentioned device is suitable for use with the invention disclosed in this application.
  • Control and operation of the electric servomotors of the differential drive is done with a power unit of the control unit, which runs on the basis of an arbitrarily adjustable program, the speed of the electric motor such that the desired extension variation takes place.
  • the programming of the control unit takes place on an operating part via a data carrier.
  • the control unit in particular the power unit, must be arranged in the immediate vicinity of the differential drive.
  • Control units for a plurality of devices for operating a plurality of spinning banks can also be combined, or the power section of a control unit can have a plurality of power electronics modules which each control and operate an electric motor of a device in parallel.
  • the housing interior of the power unit is air-cooled by means of fans. Because of the unavoidably high dust load in the vicinity of spinning machines, the outside air sucked in from outside must be filtered. The filter mats used clog if they are not regularly serviced and replaced. This then leads to overheating and the failure of the control electronics. Furthermore, further environmental factors such as very high relative humidity and high ambient temperature as well as static charges in the yarn production and electromagnetic interference fields can lead to failures of the electronics. However, any interruption in the production of a spinning bank, whether due to the failure of the control electronics or due to necessary maintenance, leads to a reduction of the production volume and thus to a reduced profitability of the plant.
  • the object of the invention is to provide a power unit for a control unit of a device for producing effect yarn, which comprises the above-mentioned and does not have other disadvantages.
  • a power unit according to the invention and thus the entire control unit, should have a high degree of reliability.
  • a lasting protection against the influences of an unfavorable environment, in particular against dust and moisture is achieved by realizing the power unit with a closed housing in which the electronic components to be protected are arranged.
  • the housing essentially has no cable passages, in particular for supply and control lines, no openings, so that dust and moisture can not get into the interior.
  • the remaining openings of the housing are sealed dust-tight.
  • the interior of the housing is shielded from outside by electromagnetic interference, for example by a suitable design of the housing, and corresponding sealing elements.
  • a power unit according to the invention has a cooling device with a cooling plate which forms a side wall of the housing. The heat produced in the interior of the housing is released via this cooling plate to the outside world.
  • the removal of heat from the cooling plate can be done by air cooling.
  • the cooling plate on the outer side has a plurality of cooling fins, which increase the surface of the cooling plate by a multiple. To be efficient To ensure air circulation, these are preferably arranged perpendicular to the horizontal.
  • the cooling of the cooling plate can also be done via a water cooling.
  • the temperature of the cooling water flow is regulated so that the temperature of the cooling plate on the inside of the housing does not fall below the condensation temperature of water. This avoids condensation of humidity on the inside of the housing.
  • the cooling plate is solid, because it should have a large heat capacity; and the thermal conductivity should be as high as possible.
  • the cooling plate is therefore made of metal, for example. Copper or aluminum.
  • a ventilation device may be provided, with which the air is circulated in the interior of the closed housing.
  • additional cooling ribs may also be arranged on the inside of the cooling plate and / or in certain waste heat sources.
  • the outer shape of the housing is optimized so that the most efficient convective heat transfer can be achieved. It has been found that suitable chamfering of one or more edges of the housing cover results in improved convection within the closed housing. Due to the smaller voids, an additional internal circulation can be made more efficient with the help of a fan. As an additional advantage of such a construction is also to call the lower total volume.
  • the cooling plate is advantageously used as a supporting structure, so that the remaining housing consist of comparatively thin sheet metal.
  • this housing cover can be removed with a small disassembly effort from the supporting cooling plate.
  • FIG. 1 shown schematically; (a) in a side view perpendicular to the cooling fins, and (b) in an isometric view.
  • the housing 41 of the power unit 4 consists of a cooling plate 42 and a housing cover 411.
  • the cooling plate 42 is air-cooled in the example shown, and has a plurality of cooling fins 421. These are designed such that the largest possible cooling surface results.
  • the cooling fins 421 are aligned in the operating position as perpendicular to the horizontal as possible, ideally completely vertical, in order to guarantee an efficient vertical air flow. It can also be provided an external fan, which additionally increases the air flow to the cooling fins.
  • the control electronics module 46 In the interior 402 of the closed housing 41, the control electronics module 46, four power electronics modules 43, 43 ', and a power module 44 are arranged.
  • a maintenance interface 461 On the control module 46 is a maintenance interface 461, by means of which a maintenance technician after removal of the housing cover 44 receives access to the electronics.
  • the cable openings 421 of the housing are preferably in the area of contact of the cooling plate 42 and the housing cover 41, so that the housing cover can be removed without dismantling the cables 50 and the power unit 4 can be placed on the cooling plate 42 for maintenance. In the operating position, the cables 50 lead vertically downwards without kinking.
  • a warning light 54 or other warning signal may be appropriate to, for example, the operating status and disturbances of the power section 4 visible and / or audible display.
  • Each of the power modules 43, 43 ' is provided for operating a differential drive of a device 2.
  • the power electronics modules is preferably realized as an intelligent master module 43, which controls the other modules 43 'in a slave mode.
  • the power supply module 44 which is connected to the 400 V power supply, provides, among other things, the DC power sources required for the electronics, and contains contactors and fuses.
  • the cooling plate 42 is designed as a supporting structure of the power unit 4. All components of the power unit, in particular all the different modules 43, 44, 46, are constructed on the cooling plate 42. Preferably, the modules are designed such that the most efficient possible heat removal from the respective module is made possible in the cooling plate, optionally by appropriate arrangement of the largest heat sources within the module and suitable thermal bridges.
  • FIG. 1 (a) the abutment 6 aligned left with the flange 62 in the direction of cooling plate 42, and the abutment 6 right with the flange 62 in the direction of a side wall of the housing cover, analogous to FIG. 1 (b) .
  • the abutments 6 can be fastened via flanges 62 to existing suitable structures, for example on or on the support structure of a ring spinning machine 8, or on a building wall or a carrier.
  • the power unit 4 can be rotated and then fixed so that the cooling fins 421 are as vertical as possible to allow efficient convective heat dissipation.
  • suspensions 423 attached to the cooling plate 42, via which the power unit with axle 61 can be rotatably mounted on the abutments 6.
  • the housing cover 41 arranged between the abutment 6 and the suspension 423 has openings for the axle bolts 61, it itself does not absorb forces, which allows a lightweight design.
  • FIG. 2 schematically shows a ring spinning machine 8 with a device 2 for producing effect yarn, and a control unit 1 with an operating part 3 and a power section 4, 4 '. Shown are two possible variants 4, 4 'of a power unit.
  • a first variant of the power unit 4 is mounted laterally on the ring spinning machine 8.
  • the abutments 6 are flanged to a vertical structure of the frame of the ring spinning machine 8.
  • the air-cooled cooling plate 42 has cooling fins 421 that are vertically aligned.
  • the operating part 3 is arranged offset from the power unit 4, and is connected via a suitable data bus 53 with this.
  • This design has the advantage that operating part 2 and power unit 3 can be mounted in each case at the most suitable location.
  • the goal is, inter alia, a small space consumption and short lines to the differential drives 21, while the operating part 3 should preferably be easily accessible to an operator.
  • the communication between Operating part 2 and power section 3 can also be done via wireless communication means.
  • a power section 4 ' is arranged above the ring spinning machine 8.
  • the cooling plate 42 'of this power section 4' has a water cooling 7, with lines for the cooling water flow 71 and cooling water return 72nd
  • a cooling plate with water cooling is more complicated than a solution with an air-cooled cooling plate due to the additional external Wandaufaufauf for water cooling, but allows due to the significantly increased capacity of heat dissipation greater benefits, especially in continuous operation.
  • the water cooling is regulated such that the temperature at the surface of the cooling plate within the housing does not fall below the condensation point, so that any residual moisture within the housing does not condense.
  • any other suitable cooling medium can be used instead of water.
  • the various heat sources within the housing 41 of a power unit 4 according to the invention are in heat-conducting contact with the cooling plate.
  • the effectiveness of the air circulation may be enhanced by one or more fans disposed within the housing, which ideally create a circular air circulation between the housing interior 402 and the cooling plate 42.
  • FIG. 3 A further embodiment of a power unit 4 according to the invention is shown in FIG FIG. 3
  • the control unit is in the operating position, with vertically aligned outer cooling fins 421.
  • additional inner cooling fins 426 are integrally formed on the cooling plate 42, which against the Interior 402 are directed.
  • These inner cooling ribs 426 are used for improved heat absorption from the air in the interior 402 in the cooling plate 42.
  • these inner cooling ribs 426 extend next to the modules 43, 43 ', 44, 46 over the entire height of the cooling plate 42, for example. between the modules, or at the edge of the case.
  • a fan 425 is arranged, which sucks the warm air rising inside the housing 402 and blows down on the inner cooling ribs 426.
  • a flow channel is arranged, which encloses the inner cooling ribs 426.
  • the internal air circulation is further optimized in the example shown by the longitudinal edges of the housing cover have facings. This results in a comparatively constant flow cross section between the housing cover 411 and the modules 43, 43 ', 44, 46. Also conceivable are other adjustments such as rounded or irregular shapes.
  • cooling plate 42 in addition to or instead of the cooling plate 42, conventional cooling devices are used in which outside air is sucked through corresponding filter mats into the housing interior for cooling. Although this gives up the inventive advantage of protection against negative environmental conditions (dust, dirt, moisture, electromagnetic interference) again. Nevertheless, the improved convection inside the housing due to the special shape, optionally in combination with the inventively designed cooling plate, to an improved efficiency of Heat dissipation lead, so that the external cooling air supply can be made smaller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Claims (17)

  1. Partie de puissance (4) d'une unité de commande (1) appartenant à un appareil (2) pour la fabrication de fil d'effet, comprenant un boîtier (41), au moins un module électronique de puissance (43) monté dans ledit boîtier et un dispositif de refroidissement servant à évacuer l'énergie thermique produite, caractérisée par le fait que le boîtier (41) est fermé et que le dispositif de refroidissement comprend une plaque de refroidissement (42) qui forme une paroi latérale du boîtier (41), le boîtier (41) étant monté sur une butée (6) de façon à pouvoir tourner et être immobilisé sur un axe.
  2. Partie de puissance selon la revendication 1, caractérisée par le fait que la plaque de refroidissement (42) dispose d'une pluralité de nervures de refroidissement extérieures (421) qui sont disposées sur la plaque de refroidissement (42) sur le côté extérieur (401) du boîtier (41).
  3. Partie de puissance selon la revendication 2, caractérisée par le fait que, dans une position de travail, les nervures de la pluralité de nervures de refroidissement extérieures (421) sont disposées perpendiculairement à l'horizontale.
  4. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que la plaque de refroidissement (21) dispose d'un refroidissement par eau (7).
  5. Partie de puissance selon la revendication 4, caractérisée par le fait que le refroidissement par eau (7) est régulable de telle sorte que, sur le côté intérieur de boîtier (402), la température de la plaque de refroidissement (42) ne descende pas au-dessous de la température de condensation de l'eau.
  6. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que le boîtier (41) est étanche à la poussière.
  7. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que l'intérieur de boîtier (402) est protégé des perturbations électromagnétiques provenant de l'extérieur.
  8. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que la plaque de refroidissement (42) dispose d'une pluralité de nervures de refroidissement intérieures (426) qui sont disposées sur la plaque de refroidissement (42) sur le côté intérieur (402) du boîtier (41).
  9. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que le dispositif de refroidissement présente un dispositif de ventilation (425) au moyen duquel l'air contenu à l'intérieur (402) du boîtier fermé (41) est ape à être brassé.
  10. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait qu'elle comporte des dispositifs (413, 414) servant à influencer la circulation d'air (403) dans le volume intérieur (402) du boîtier.
  11. Partie de puissance selon la revendication 10, caractérisée par le fait que les dispositifs présentent des chanfreins (413) du couvercle (411) du boîtier et/ou des canaux d'écoulement (424).
  12. Partie de puissance selon l'une des revendications précédentes, caractérisée par le fait que le dispositif de refroidissement comprend une alimentation extérieure en air de refroidissement.
  13. Unité de commande (1) pour un appareil (2) pour la fabrication de fil d'effet, comportant une partie de service (3) et une partie de puissance (4) selon l'une des revendications précédentes.
  14. Unité de commande selon la revendication 13, caractérisée par le fait que la partie de service (3) et la partie de puissance (4) sont décalées l'une par rapport à l'autre.
  15. Unité de commande selon l'une des revendications 13 ou 14, caractérisée par le fait que la partie de service (3) et la partie de puissance (4) sont connectées entre elles par un bus de données filaire et/ou sans fil.
  16. Dispositif (2) pour la fabrication de fil d'effet comportant un métier à filer à anneaux (8) qui comporte un ou plusieurs entraînements différentiels (21) servant à assurer la commande variable de la vitesse de rotation de mécanismes d'étirage appartenant à un ou plusieurs métiers à filer à anneaux (8) pour obtenir un étirage variable d'un fil, et une unité de commande (1) selon l'une des revendications 13 à 15.
  17. Métier à filer à anneaux (8) pour la fabrication de fil d'effet, comportant un entraînement différentiel (21) servant à assurer la commande variable de la vitesse de rotation d'un ou plusieurs mécanismes d'étirage du métier à filer à anneaux (8) afin d'obtenir un étirage variable d'un fil, et une unité de commande (1) selon l'une des revendications 13 à 15.
EP09722322.6A 2008-03-17 2009-02-11 Dispositif avec élément de puissance refroidi pour la fabrication de fil fantaisie Active EP2262937B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3982008 2008-03-17
PCT/EP2009/051601 WO2009115375A1 (fr) 2008-03-17 2009-02-11 Dispositif avec élément de puissance refroidi pour la fabrication de fil fantaisie

Publications (2)

Publication Number Publication Date
EP2262937A1 EP2262937A1 (fr) 2010-12-22
EP2262937B1 true EP2262937B1 (fr) 2013-08-14

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EP09722322.6A Active EP2262937B1 (fr) 2008-03-17 2009-02-11 Dispositif avec élément de puissance refroidi pour la fabrication de fil fantaisie

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EP (1) EP2262937B1 (fr)
CN (1) CN101970735B (fr)
ES (1) ES2433575T3 (fr)
WO (1) WO2009115375A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105002606A (zh) * 2014-04-25 2015-10-28 苏州科技学院相城研究院 差速器在纺机中的应用
CN116437616B (zh) * 2023-05-11 2024-02-20 中山市锐钜智能电子有限公司 一种电路板的隔离防尘装置及防尘方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520425A (en) * 1982-08-12 1985-05-28 Mitsubishi Denki Kabushiki Kaisha Control apparatus with improved structure for cooling circuit elements
AT384343B (de) * 1985-04-16 1987-10-27 Siemens Ag Oesterreich Gehaeuseanordnung fuer belueftete geraete, vorzugsweise der leistungselektronik
ES2028979T3 (es) * 1988-01-30 1992-07-16 Maschinenfabrik Rieter Ag Evacuacion de calor de maquinas textiles.
DE4041301A1 (de) * 1990-12-21 1992-06-25 Amsler Iro Ag Spinnmaschine fuer und verfahren zum spinnen von effektgarn
DE10036234A1 (de) * 2000-07-26 2002-02-21 Lenze Gmbh & Co Kg Aerzen Frequenzumrichter mit einem aus Oberteil und Unterteil bestehenden Gehäuse
DE102005037488B4 (de) * 2004-09-07 2007-12-06 Sew-Eurodrive Gmbh & Co. Kg Kühlanordnung und deren Verwendung sowie Kompaktantrieb und Umrichter mit einer derartigen Kühlanordnung
DE102006057796B4 (de) * 2005-12-08 2011-03-03 Sew-Eurodrive Gmbh & Co. Kg Kühlanordnung für Wärme erzeugende elektrische Komponenten und elektrisches Gerät damit
DE102006046194A1 (de) * 2006-09-29 2008-04-03 Siemens Ag Kühlkörper zur Kühlung eines elektrischen Bauelementes

Also Published As

Publication number Publication date
ES2433575T3 (es) 2013-12-11
CN101970735A (zh) 2011-02-09
WO2009115375A1 (fr) 2009-09-24
CN101970735B (zh) 2012-09-26
EP2262937A1 (fr) 2010-12-22

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