Патент USA US2409669код для вставки
Oct. 22, l'946.. H. J. DAILEY 2,409,668 HEAT TRANSFER MEANS AND METHOD OF ASSEMBLY ‘Filed‘July 18,‘ 1942 11555.1 '10 z; 14 2.7 12 Z4 :15 :16 23 ‘I L19 INVENTOR H-JT ,D/Y/LE'Y BY ‘ATTORNEY Patented Oct. 22, 1946 2,409,668 UNITED ‘STATES PATENT OFFICE 2,409,668 HEAT TRANSFER MEANS AND METHOD OF ASSEMBLY Hampton J. Dailey, Bloom?eld, N. J ., assignor to Westinghouse Electric Corporation, East Pitts burgh, Pa., a corporation of Pennsylvania Application July 18, 1942, Serial No. 451,448 4 Claims. 1 This invention relates to heat transfer means and particularly to cooling means applied to and in combination with an external electrode of an (01. 189-35) 2 Figure 2 is a sectional View of the core showing steps of fabrication; and Figure 3 is a sectional View of anode and core electron discharge device, and method of assem of Fig. 1 about to be assembled. bly therewith. ' In the speci?c embodiment of the invention Heretofore electron discharge devices have illustrated in said drawing, the reference numeral been constructed with envelopes partly of glass ii) designates an electron discharge device in general, ‘having usual triode or other electrodes and partly of metal, at least one of the external 1'. etal parts constituting an electrode. A particu of which the anode ll shown herein is formed lar instance of such construction is incorporated 10 as part of the envelope and provides a peripheral rim portion l2 sealed into an edge margin of in the present showing wherein the external glass portion E3 of said envelope. The anode metal part constitutes in part an anode. C'on sequential upon the heat developed in the metal structure, while not per se novel, enters into the lic anode, the junction between the metal and present invention as illustrative of the metallic glass is subjected to high temperature differ 15 portion of the electron device to which an exter ences. Radiators of one sort or another have nal radiator is to be applied. Said anode is shown been applied to the external part of the metallic as an inverted dome the base part of which curls electrode, and in application of a sleeve type of or ?ares outwardly at M and then downwardly radiator the fabrication has involved use of solder to form said rim portion 12 spaced from and for obtaining tight contact for insuring maxi 20 engirdling a part of the body of the anode nearest mum conduction of heat from the electrode to the base part thereof. The structure accordingly the radiator. The solder, on entry of the elec provides an inverted channel i5 between the dome trode into the core, is frequently forced from the or body portion of the anode and said rim por intervening device and strikes the glass part of tion l2; The glass portion i3 of the envelope is the envelope either causing immediate breakage 25 provided with a reentrant edge margin 16, and or a weakened spot which develops into a defect‘ it is‘this reentrant margin which is sealed to» the and point of leakage. To avoid this, insuf?cie-nt said rim portion i2 of the anode. solder has frequently been employed thereby The heat transfer means or radiator, desig leaving an air gap between the electrodeand nated in general by numeral ll’, comprises a radiator core with resultant loss of conduction. 30 metallic core [8 the lower portion whereof has An object of the present invention is to over ?ns 18 extending longitudinally thereof and come the detrimental eifects of prior art con radiating therefrom. The outer longitudinal struction and method of fabrication. edges of the ?ns are here shown engaging and A further object of the invention is to improve attached to the inner face of a ring 28 surround the structure and method of fabrication and at 35 ing the annular series of ?ns. As here shown, the same time reduce discards or'shrinkage- in the ?ns are situated at their inner longitudinal manufacture and development of defective de margins in grooves 2! provided in the outer sur vices in use from the cause mentioned. ‘ face of the lower cylindrical part of the core. Another object of the invention is to obtain Other constructions of ?ns and means of attach maximum heat conduction from the electrode 40 ment may be substituted. to the radiator core. The upper part of core I8‘ is hollowed, thereby Yet another object is to reduce the time and providing an anode cavity 22 shaped to conform attention required of the operator in making a perfect assembly of the electrode and. radiator to the dome shape of the anode. Assembly clear ance and manufacturing tolerance results in a 45 minute space existing between the cavity wall Still further objects and advantages will be and the anode, and that space is ?lled with a come apparent'both by direct recitation thereof ?lm of solder 23 during fabrication. It may now and by implication from the context as the de be pointed out that the upper part 24 of core I8 core. scription proceeds. is annular, due to the cavity 22 therein, and this Referring to the accompanying drawing in which like numerals of reference indicate similar parts throughout the several views; entrant glass margin [6 and the body of the Figure 1 is a longitudinal sectional view of an electron discharge device with a cooling means annular part of the core enters between the re anode as well as between the channel-forming parts of the anode, so that the upper end of the core is above the edge of the glass and therefore applied thereto in accordance with my invention; 55 solder ejected from the provided space is apt to, 2,409,668 3 4 and frequently has in the past, contacted with and often lodged upon the glass. The present speci?cation or illustrated in the drawing, shall be interpreted as exemplary and not in a limiting invention overcomes this prevalent detrimental condition. sense. It is also to be understood that the follow ing claims are intended to cover all of the generic and speci?c features of the invention herein shown and described and all statements of the scope of the invention herein set forth as a mat ter of language which might be said to fall there In the upper end edge of the annular part 24 of the core is provided an over?ow catch basin formed by means of an annular channel 25. As this channel is interposed between the space for the solder and the glass part of the envelope, excess solder from said space will lodge in said channel, thereby protecting the glass. Since the channel is annular or continuous around the anode, large amounts of solder extruded at one between. I claim: I. A heat exchange means comprising a core having a cavity opening upward and having a closed bottom, said cavity adapted to receive a position will flow around to parts of the channel device for heat exchange purposes by conduction where no solder has been caught, and thus the 15 from said device through the material of the core, channel will accommodate irregularity of extru said cavity adapted to contain material in a ?uid sion of the solder. If desired, and where space state subject to extrusion at the upper edge of the permits, the outer wall of the catch basin or chan cavity upon introduction of said device into the nel may be made higher than the inner wall, as cavity, said core having means for accommodat shown, to more positively prevent over?ow of 20 ing excess of the ?uid material extruded from the extruded solder. the cavity. In manufacture, and as indicated by the show 2. A heat exchange means comprising a core ing of Figure 2, the cavity 22 of the core is a having a cavity opening upward and having a propriately cleaned and kept in best condition closed bottom, said cavity adapted to receive a for adherence of the solder. Cleaning may be 25 device for heat exchange purposes by conduction by acid or otherwise, after which a ?ow of hydro from said device through the material of the core, gen is maintained in the cavity until ready to said cavity adapted to contain material in a ?uid insert the anode therein. Solder 26 in proper state subject to extrusion at the upper edge of amount is placed in the cavity and the core is the cavity upon, introduction of said device into heated so that all parts thereof are above the 30 the cavity, said core having a channel for ac melting point of the solder. Flame 2'! is indica commodating excess of the ?uid material extruded tive of appropriate heating means. from the cavity. Next, the anode is forced, as being done in 3. A heat exchange means comprising a core Fig. 2, gradually and ?rmly into said cavity, the having a cavity opening upward and having a anode displacing the melted solder and forcing 35 closed bottom, said cavity adapted to receive a it to rise in the space between the anode and core. device for heat exchange purposes by conduction The fact that the entire core is above the tem from said device through the material of the perature of the solder assures ?ow, without solidi core, said cavity adapted to contain material in ?cation, to the upper edge of the core. Likewise, a ?uid state subject to extrusion at the upper edge excess solder extruded from the space, will con 40 of the cavity upon introduction of said device into tinue in its liquid state and will flow into the the cavity, said core having a continuous annular catch basin or channel 25 and will level-off there channel for accommodating excess of the ?uid in to take care of a very considerable over?ow. material extruded from the cavity. Thus it can be assured that the solder completely 4. A heat exchange means comprising a core ?lls the space between the anode and core and 45 having a cavity opening upward and having a that the extruded excess will be accommodated closed bottom, said cavity adapted to receive a and. retained by the channel so none will contact device for heat exchange purposes by conduction the glass part of the envelope. Cooling of the from said device through the material of the core, core is then permitted and the solder will accord said cavity adapted to contain material in a fluid ingly harden in place giving full surface connec 50 state subject to extrusion at the upper edge of tion throughout the cavity with the anode. the cavity upon introduction of said device into Since the various details of construction, and the cavity, said core having a channel for ac steps involved in the method, as well as the pre commodating excess of the ?uid material extruded cise relation and functioning of parts are subject from the cavity, the wall of the channel furthest to variation and change without departing from 55 from the said cavity having greater height than the inventive concept or scope of the invention, the wall of the channel nearest said cavity. it is intended that all matter contained in the HAMPTON J. DAILEY.