HUE029246T2 - Cooling radiator having liquid cooling - Google Patents

Description

COOLING RADIATOR HAVING LIQUID COOLING:

mscRimoN 1,. Field of she inversion 100011 the inventioîï relates to a cooling radiator, to particular a cooling: radiator of a holier of a motionner active part, whereto she coohng radiate Is constituted 'with cooling elements:: through: which cooltog: liquid heated ©a toe aste:pi: Sows under the effect of gravity from above vis g collector or distributor pipe, aso-«ailed codec», dtoto»Wsfo a tower disteihaisr tol: collector, a so-called; tower collector, whereto toe: cooled liquid passes via to® tower |istdhator hack tol:© toe transformer and wherein: at: bast one cooling radiator is disposed remote horn or directly so the teasssformerhr its hosier, 100021 Cooling tadtotors ©C tois kind comprise, apart #om the upper and Sower collecte,, at toast one stè-module of eopitog elements,, which arc connected by respective individual distributor p-lps lé the upper and lower collector,: witereia the mb-Moduies comprise pipes which are each provided M their entersai side with ribs. :2, Prior art |Ö0Ö3| f he cooling elements of transformer or other electrical devices comprise cooling eienmnts fhpmgh which oil : usually lows as & cool tog liquid, ©r a corrugated metal sheet such as is known toom 13E f:0 2009015 W? é> fM cooling mdistöto comprising a plurality of such: combined cooling eietae«^ m arranged beside Of helthil: one another la & row, are constitated as a welded structure, to order to increase the service lifw they sué lacquered or galvanised hf Wnpeostve dlpptog procedures,

Idito4| In eontiast with: 1¾ prmlsctkm is to he simplified with a stosnltoncous of the eodltog elemeuts to the collectors and. to particular, the heat transfer or fe$t mmmsm® ss "m he improved. 3, fhobie® of the invention {00051The problem of the inveMlon, therefore, mm to make avÄMe a cooling mdtaíor, which m the one hand has a simple structure and on the other hand ensures overall an increased heat transfer with identical etoecnai dimensions of the cooling radiator, Within the meaning of toe tovento®, tois problem is solved with a cooling radiator comprising the features of claim 1. Advantageous devtoeonreats of toe imtoution are set ©to to the dependent claims. 4, Summán/ offne invention fOOOől Within the meaning of the invention, the sub-modules are disposed verikaiiy and normal to the longitudinal: direction of the collectors, wherein the pipes of the sub-modules for toe air passage are disposed as parallel with a spacing írom one another. À cooling radiator is tous created which, comprising a plurality of cooling elements following beside or behind one another to a row ar:d with an air gap relative to cute another, inserted to apertures of the upper collector pipe and toe lower collector pipe, permits a particularly good air passage test# toe cooling radiator overall and at toe respecti ve codling elements, fOiÜlf All toe éeö&jg Äas cohtÄtei ptufebiy equally, to the heat tftoís^r ftoto toe cooing medium, pÄÄy ©I, flowing through: the to the ambient air iowtog: through fee eorifeg radfetOc, Apa. tusuk, a pameaiarîy high energy dissipation dhup feJtjd kWÄ* jpsÉn&y ο#'©ρ· î© dfeSfekWfe, rs ashieveil wife, a cooling radiator with a width of up to 548 iras, pmfeîPbiy tip 1# SM mm, and à height of up to t fe* Ρ$ΦχΦΜ Wt0 1.88¾ A ¢00¾ radufeA wife a height of 8,5 m up to; %$. m is preferred With optimised ofess-secíkms boti? of the upper and the fewer collector and of the pipes: of fee respective sub-•noduks, a Slow rare of oh through the eooiing radiator of up to 2?08 kg/h, preferably op to 2880 kg/h can he achieved.

[0008] As has been confsrmed by tests, the liquid, in particular oil, flowing through the pipes from top to bottom wife the best codling effect e^eiesees fee least resistance wfe an optimised emss-seedon of fee cooling ekmenls of the cooling radiator is observed. Since only the kast possible resistances occur, the system cat? öpsrätö ΐτδ^ convection; no pumps are required.

[0009] The eooihxg radiator is thus present as a eoutpacl complete unit, which comprises as many sstbonodules as desired, disposed spaced apart feem orte another and oonsected via the indlÄtal distributor pipes to fee collectors. The amblefe aife rfinsed be assisted: by fensfeanlilafers, is able to flow eruapletely around fee entire eooiing f aiiator and: ife fethfeiodhles both in fee transverse and also in fee longitudinal direction. The cooling or fee heat dissi|mtiohfeefe: trahS:fer Is feus maintained very efiekuily. JÄÖf A preferred proposal makes provision such:: fear fee pipes: and aise the collectors,: preferably the upper eoiisefor sod fee fewer eOifeettk, as well as Use individual distributor pipes are made fent a material processible by mmmm, ifecites In pafeisul&r alufeiaituu or aluiululbm: alloys, magnesium or sifeilar lightweight metals kutrahle fer extrusion,: Äse materials on fee ose hand have good: heat transfer properties and on the other hand are éöfeo^fewíksistafe fere to fcmfeg oxide layers, so that lacqaerfeg or sues coating or surface ifefemeafis trot necessary, and they can also he produced easily, i.e. preferably extruded mfe;'«py-:^feid;.fefe38etr3r,.. födO] The apertt?res required for the connection of fee individual components of the cooling radiator are preferably produced in a precise manner by muling or laser processing, so feat exact feinte fer fee rnicnfeoimirsg can be achieved preferably by laser welding wife a gas-light or oil-tight commotion, fööll] It Is preferable if each sifermodtile eo?hprises ?fe fe 12, preferably up to 18 pipes; A (moling tndtmor is fens created, fee effective surface whereof ear? be adapted to fee properties required of fee cooing radiator, fee a?nbient air being able to flow arotrnd said effective surface wife particularly stralghttorward tnea?rs and. if need be, completely, peifl In d?is connecttem, it is also prefwable if fee pipes of fee respective sub-modules have a laltesed, preferably roetatsguiar crosärseeöoa, in particular a rectangular ernss-sestfea wife rsnnded comers, It Is partfeulady p?xdérífe1:e if stseh pipes comprise at least one inner W#> preferably two inner webs, Ute width of fee pipes: peferably amounts· to np to Bfeimu, p?vfe?obly up 1» 1:38 mm, It is: partieul:arty preferable if fee spaemg of the pipes wife respect to one another per sub-module amounts to up to 3d tom, preferably up to 27 mm, A epoiipg radiator Is feus created which on fee ope hand enables a sulïMeut ifeough-flow of cooling media: such as oil ferbdgh fee pipes of each sub-module usd .on fee odfer band makes pipes: wife sufficient dimensional stability available. Finally;, an optimised air passage through fee eobling radiator overall is brought about by the selection äpip^"|#w««s fee pipes, u$ a sesplt of wltich fee: cooling capaely ean be optimised. pö 14] Moreover, It is preferable if the ribs provides es the external side of the pipes are longitudinal ribs, which extend preferably over the total length of the pipes, Le, essentially over the total length of the cooling radiator, it is particularly preferable if up to 15, most preferably up to 12 longitudinal ribs are provided per pipe. In this connection, it is particularly preferable if the longitudinal ribs have a height, i.e. an extension from the external side of the pipe outwards, of up to 15 tom, preferably up to 12 m The spacing of the longitudinal ribs iront one another should amottnt to op to 25 ntm, preferably up to 2i man, in order not only fens to ensure m efeaerlvs: stufaee tor the cooling radiator with a at the same ütne also to optimise the transfer of the heat from the cooling medium into the ambient air flowing around and flowing through the cooling radiator. p035] in a further embodiment of the invention, it is preferable if op to 10, preferably up to ft sub-modules are provided in the cooling radiator. These sub-modules, which are each connected to one another by an upper and a lower individual distributor pipe, thus offer a particularly large effective area with a compact design of the cooling radiator at the same time. p816| In Uns éounsctíus, tt is also preferable If at leas the upper collector,, preferably also the lower collector, Iss a recfeupiar preferably with a Mm of 28 x M mm, It is also most preferable If at least the upper collector, preferably bhfe the Upper and the lower collector, are disposed at an end of the individual distributor pipes and does not therefore hinder the air flow flowing in particular front bottom to top through the eooillsg radiator along lise stferaiodules« Solely as a result offne arrangement of the upper collector removed front the centre of the individual distributor pipes to their end, an air admission to the cooling radiator and an air exit from the coolhtg: radiator improved by «p demonstrably able to he aehfeved. |D8:I2] A preferred embodiment provides for the grefebtfeaied eosstruetinn of fee cooling radiator, wherein fee upper and the lower collectors are disposed In a longitudinal extension and comprise an arbitrary uferfeer nf apertures lying spaced apart behind one another as viewed over the length thereof, in the case of oval pipes as a cooling element correspondingly sbaperadapfed elongated holes provided normal to the longitudinal extension. The cooling elements am inserted, fermlog a Mhwnodnfe;, into apertures of individual festrihntpf pipes connected to the upper and the lower collector, said distributor pipes having a rectangular or square fermât, which the collectors also advantageously have. I%e snh-jWsdttfes compfisuîg fe*: upper and the lower mdlvidu&l distributor with fee inserted cooling elements are connected, preferably laser-welded, to the collectors in an oil-tight: manner wife their individual distributor pipes naming nottnal to the collectors and, with on« of their apertures, being in a flow connection with an aperture of the collectors, and more precisely such that the collectors bridge the sub-modules disposed normal festst», either centrally m preferably displaced is fee side and on fee ends of fee individual distributor pipe, 3, Brief description of fee figures ffl81S| The invention is explained below in greater detail by reference to aigat figures, in which preferred embodiments of the invention are represented, in the figures:

Figure 1 shows a front view of a cooling radiator according to fevenlidp,

FigUfeS shows anend view of a cooling radiator front Sgure 1, figure 2 shows a view from above onto fee cooling.radiátor from figure 1 and 2,

Figure 4 shows foi individual: diáirífehfoí· pipe: for a cooling F4äMfor:SFCöräs.42.i0 foe invention.

Figure 5 shows a section of a collector of a cooling radiator according to the invention.

Figure § ishdws a cosssfoeetion fofOugh a pipe of a sub-module it! g first fimhödiment.

Figure 7 shows a ewxss-seciios through a pipe of a stib-modaie îo a second enfoodimeni.

Figure S shows a perspective representation of foe coot it· g radiator according to the invention in a view fro® top to bottom.

Detailed description of the figures

|SW£| Figure | shows a ip® view of a completely pjfofehricated cooling radiator ? preparsfofhr liwtaiistlfiir info or rpfoml fkx® a Wartsformer, Cooling radiator 1 comprises an upper eolector pipe 2 and a lower collector pipe % which can fee connected to the transformer (not represented) fey means of' respective: f!snges: 2a, 3a fo constitute a closed oil-circuit with the hsusfarmer. Connected between upper collector 2 and lower collector 3 is a plurality of sufe-tsodhles: 4, which each emend vertically and normal m the: longitudinal direction öf deflector pipes 2, 3 In the plane of foe: drawing, individual distrifeotor pipes 3 are in turn assigned to sub-foodfoes fo said individual dtsbifeefor pipes feeing connected Hgfod-flghtfo collector pipes 2. :3 asm pijses of sUbiOnodmes 4M. order thus to provide the passage of the cooing mefouni such as oil through entire cooling radiator !.. Fhudly, tseasuremsof sensors 28,. 21 are connected to upper efoleefor :2 and respectively lower collector 3, is order Us detect foe through->fh>w quantity as well as the entrance and: :emt temperatnre of the: cooling medio® through cooling radiator L |802θ| Figure 2 shows cooling radiator I fen figsste: 1 in a side view, US viewed §o® the right, and; fous shows the front of first Sifo-fofidule 4, A large number of those Successive selwmodules 4, which are disposed with clearance: from one another apid are eopnectfed to upper collector 2; and lower collector 3, for® cos&amp;g pmiÄr ( I ) fosra figure l, From a esushmed view of figures I and 2, it can he seen that ambient, air can flow csfopfefoiy around cooling radiator ! and its sub-modules 4, and dm elements cossdmted as oval pipes S in foe «aampfo of embodiment (see figure 6). The heated: cooling itpid (sif flowing m hfos foe consumer in foe direction: of foe npper arrow of iIgnre ! is thus cooled: pafoeulsrly Effectively on its path downwards. There, foe cooling ikfoid passes in foe direction of foe lower arrow hack to the consfo^ fooien active párt of foe trfotsiormer). Cooling radialer I can he connected fo: the consstsep opfionally wife theihterposhimí of pipelines, hf means of flanges 2a, 3 a of collectors 2, 3. 10021} Figure 3 dhows cooling radfofof 1 fold* figures l and 2 In a s#w fro® above, fothweodules 4 with the c®!ÍÍHg: eieownís msorted ip Individual distrlhtlfor pipes 5 are disposed normal mal vertical with respect fo upper collector 2 and a® bridged fey eolipefor 2 lying id the centre of sufomoduies 4, Ssfo-modulss 4 sued comprise five pipes d with ah esscfofely fectanplar cross-section:: eonheefod fey a Comoro® Individual distribaier pipe 5. A spading 22 for the passage of/cooling air tirrodihrespefeive sufe^modtfies 4 is 1« fora provided between pipes 6. PP2} Filmre 4 shows, as a single unit, as. individual: distributor pipe 5 viewed from its side esfopisrog sgetfores 2|, A liquid-tight and .gas-tight connection of individual distributor piped fo: pipes in® represented) for the passage fifths cooling medium takes place vfoaperfores 23. P6231 S àô«, m a. single urát, s collector 2 viewed fro® its side comprisirsg apertures 34. The connection and gae- and üqnid-tigbt welding -of upper collector 3 tö individual :iÉhlar pipes 5 (not via apertures 24. fS024| Figure d stews a cross-seetloa through a pips ö with no essentially rectangular crossfseetfoaandf rounded-colters, î,ongitndtuâl ribs f disposes equidistant hont öte another are disposed PO the external side of pipe 6. hat st least on the longitudinal sides of pipe 6, by means of which longitudinal fifes the effective ares of pipe 6. i<«> the contatesurisee of pipe 6 wMi the arnfeientak tewing around pipe i, Is intarfcedty Increased. Ao inner web 8 inside pipe# Is also provided: for stabilisation of pipe Û. pil2SJ Figure 7 shows a second embodiment ofa pipe 6 according to the inveotioo: as part of a sah-*nedaie of a cooling radiator according:® the invention. Flps: 6 again has as- essentially recfáhgolar aoss-seeten with rounded corners, wherein cooling; ribs 7 with IdOosifeal spacing Irons :me aneiter are disposed os each longitudinal side of pipe 6, The height of ribs 7, he. their mtemim koto the: external side of pipe 6 outwards, is also identical over the entire circumference of pipe &amp; m order thus teoreate constant heat transfer conditions over pipe &amp; U order to stabilise pipe ë and to We Its etoss^sectes im three tespthe:m of essentially identical sige, loner wshs Sa. Sb are provided, winch extend over the total length: of pipe | . 10026] Finafly, figure S shows a perspective overall view of a cooling radiator i according ip the invention in a view Sont top to bottom. Cooing radiator ! oontpfises. so upper collector pipe 2 and a Ibwef cpiSeetot pipe: &amp; m which eight indivldonl distributor pipes 5 tap ooaoected> These individual distributor pipes 5 are in fait! connected to seven pipes 6, .o*$f the total yâmp&amp;f longitudinal ribs ? extend, In order to ensure the sir passage of the eooilag ah thropgh cooling radiator 1 |h an essentially unhindered manner, both appr collector 2 gad lower collector 3 at disposed offset front the central arrangement on individual distributor pipes 5 (see %. 3) to dw end regions of individual distributor pipes 5 .

List of reference panthers [00271 1 cooling radiator 2 upper collector 2a flange 3 lower collector 3a flange 4 sub-module 5 Individual distributor pipe 6 pipe 7 longitudinal ribs 8 inner web 20 measurement sensor 21 mess oremsnt sensor 22 spacing between pipes

Claims (5)

2¾ apásaié indlddMl bistdbutor pipe tendon collector aperture 24 M) | A *!> &Amp; &amp; 1-HJTT.SES HÜTOIiAMÄTCM Patent claims 1. Skin Filler - {1% of which is an upper cavity | 2) and a lower g $ i0t (3); (4), the heating elements of which are the wings of the respective individual manifold (5) with the upper collector (2), the lilies with the lower collector (3) connected to the casing, the apf the gap; (7) vanMk provided that the subbuffer is perpendicular and transverse to the longitudinal direction of the collectors (2, 3), arranged, and the feo &amp; osdef pj tubes (6) are provided with a separate headpiece for the air flow | Cooling radiator according to claim 1 (1). at least the tubes (6) of the partial faces (4) are made of aluminum or aluminous core. are. 3. Foam-fader according to one of the preceding claims: (11 ¾ of a nd to a tens of 0 $ fegfef of this twelve, preferably up to ten tubes: £ 6) tsríabom 4 According to the foregoing claims, a Thermometer (1), asmijethmzm, or «pessmonulokP} with rain <6) · A rectangular, preferably rectangular, rectangular: preferably with a rounded smM cross section, S, the previous: light points; The tubes according to the invention are provided with at least one inner partition wall (8), preferably two internal partition walls (S). The prior art claims are based on the following description of the present invention, which is defined as "rain" ($ width is &amp; jjebfe 130 mm-1, preferably 12 &apos; needle). 7. Use any of the preceding claims to take a radar (1% msefjeitmmoé, bq§r the distance of the tubes (oh) to a · one submodule (4) up to M snm, preferably up to 2? Mm). 8. The skin pricker of any one of the preceding claims, i1% "/ pftemized, having the tubes {fi} with the skin ribs <?}>; preferably isgfepöbe fifteen, preferably preferably up to a radius of a limb! £?). &Amp; The skin radar (1) according to claim 8, discovered by nzz, having been annoyed. ribs (?) || mmAg, preferably up to 12: mm, with a rising height, shoot *. According to Clause 8 or 9! skin fatigue (1¾. ozzní fefee * kasr% bpgy the distance of the sum of the ribs (f) is equal to 25 mm, preferably not more than 25 mm, preferably it is 28 cm; it is stretched out, 1L according to the above-mentioned requirements.) Pf is the most widespread, preferably up to eight zefezfefeto in skin infections. P) is placed, Î2, any of the pontæaaÊâi özőæaaÊâi özőæaaÊâi özőæaaÊâi özőæaaÊâi? »Feyfe ifegy the width of the skin retarder is not more than Him. up to 5¾) mtsrf.