DE1200957B - Heat dissipating protective screen to be attached to a vacuum tube inserted in a socket - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

HOIj

German KL: 21 g -13/11

Number: 1 200 957

File number: L 44385 VIII c / 21 g

Filing date: March 16, 1963

Opening day: September 16, 1965

The invention relates to a heat-dissipating vacuum tube to be attached to a vacuum tube inserted into a socket Protective screen with attached to the inside of the protective screen, when in use the Glass cylinder of the tube under pressure contacting, thermally conductive spring elements and with a heat-conducting and the protective screen holding, attached to the device ring with a heat dissipating Part is related.

In a known embodiment of such a protective screen, a one-piece sleeve is with riveted spring elements can be pushed over the vacuum tube and attached to its socket with the help of a Bayonet lock attachable. In such a protective screen, however, is the heat dissipation contact between the socket and the sleeve and between the sleeve and the spring elements because of Bad air gaps, and the spring elements can only rest against the tube with little pressure. It is also to be feared that when the sleeve is pushed onto the tube, the spring elements will break the glass envelope scratch the tube.

To eliminate these shortcomings, the protective screen described in the first paragraph is according to the invention characterized in that it consists of two z. B. semi-cylindrical sleeve halves, the form-fitting and with respect to their longitudinal axis about an axis approximately perpendicular to this pivotable with one another are connected, and that the lower end of the sleeve halves in the state of use in the on the device attached ring is held under pressure, while the sleeve halves by means of gill against the The effect of the pressure of the spring elements is prevented from pivoting movements compensating for this effect are.

In this way, a good heat-dissipating contact is conveyed on all sides, and the ones that can be folded apart Sleeve halves prevent the tube from being damaged when the protective screen is applied.

A preferred embodiment of a protective screen according to the invention is characterized by this from that the pivot axis is close to the sleeve end clamped in the ring in the use state is located. It is also advantageous if the outside of the sleeve halves between their lower end and the pivot connection thereof is grooved or indented and the ring is radially has inwardly projecting stop which is received in the groove or recess of the sleeve half when the sleeve halves are in the mutually parallel position, around the sleeve half to connect closely with the ring.

Heat dissipator, with one in a socket
inserted vacuum tube to be attached
Protective screen

Applicant:

Atlee Corporation, Winchester, Mass. (V. St. A.)

Representative:

Dr.-Ing. W. Höger

and Dipl.-Ing. W. Stellrecht M. Sc,

Patent Attorneys, Stuttgart 1, Uhlandstr. 16

Named as inventor:
George M. Worden Sr.,
New York, NY (V. St. A.)

Claimed priority:

V. St. v. America August 10, 1962 (219 356)

In a further preferred embodiment according to the invention it is provided that in connection with a tubular socket, an outer fastening ring and a radially inwardly extending one Flange with an inclined surface directed towards the sleeve, the flange having a radial recess possesses, in which a radially outwardly projecting stop of the tubular socket fits, the after rotation of the ring with the face of the flange is brought into spline connection to thereby to connect the ring with the tube socket tightly.

A closure cap with an annular side wall which the opposite ends of the sleeve halves releasably receives. The thermally conductive elements are preferably soldered to the inner surfaces of the sleeve halves. As a clamping means can also be used with advantage an attachment wire and connecting means pivotally attached to one of the sleeve halves serve for the fastening wire, which are attached to the other half of the sleeve. Finally, in further Design of a protective screen according to the invention be provided that the interior of a Has dull-colored, blackened surface.

The following description of preferred embodiments of the invention serves in conjunction

509 687/337

3 4

hang with the drawing for further explanation. as described in more detail below

It shows that will.

F i g. 1 an exemplary embodiment according to the invention. The sleeve halves 30 can at their lower

the protective screen arrangement for vacuum tubes in one end within the compartment 13 of the cylinder 12 Top view seen from above, 5 set and with the outside of the glass envelope 29

F i g. 2 the individual parts of the in F i g. 1 shown in a clamped connection.

Arrangement pulled apart in a side- Each sleeve half 30 is provided with an eyelet or a

sees, partly in section, a pair of eyelets 32 on one side and an open-

Fig. 3 the arrangement according to FIG. 1 is provided in an elongation 36 on the opposite side,

cut according to the line 3-3 of FIG. 1 in an io Each eyelet 32 is provided with an opening 34 to

larger scale, with the opening 36 on the corresponding side of the

4 shows the arrangement according to FIG. 3 in a section with her cooperating sleeve half in a

according to line 4-4 of FIG. 3, to be brought to a rivet or line

F i g. 5 certain interconnected single hinge pins 38 can be pushed through. the

parts of the arrangement according to the invention in a per- 15 openings 34 and 36 are opposed to each other between

perspective view on a larger scale, overlapping ends of the sleeve halves arranged,

F i g. 6 a slightly modified embodiment, however, in the vicinity of the lowermost ends of the same, of the device according to the invention in apart- with the lower end of each half being slightly peeled off State in perspective view has incline 40 to partially tilt the sleeve on average, 20 halves in the one shown in FIG. 2 and 3 positions shown

7 shows a further exemplary embodiment of what is possible. This position of the sleeve halves reduces

object of invention in a front view partially gert the circumference of the lowest end of the sleeve,

in the cut so that they are in

F i g. 8 the disassembled arrangement is used after the compartment 13 of the basic cylinder 12

F i g. 7 in perspective view, 25 can.

Fig.9 shows a joint arrangement of the invention. The interior of each protective screen half 30 is with

according to the device in a side view partially non-removable or removable rows of

in section, highly effective thermally conductive spring elements 46

FIG. 10 shows the arrangement according to FIG. 7 in one, the surfaces 48 of which cover a whole

Section along line 10-10 of FIG. 7, 30 form the heat dissipation area on the outer

11 shows the arrangement according to FIG. 7 in a surface of the glass envelope 29 under pressure. The InCut according to the line 11-11 of FIG. 7, the diameter of the through such contact surfaces

F i g. 12 the arrangement according to FIG. 9 in an inner compartment formed 48 is slightly smaller than that

Section along the line 12-12 of FIG. 9 and the outer diameter of the in connection with it

13 shows the arrangement of FIG. 9 in a glass envelope 29 used in 35 so that in this way

Section along line 13-13 of FIG. 9. such elements after application to the

In FIGS. 1 to 5 of the drawing, a vacuum tube is to be clamped in. By the nature of the

connection with a standard tube socket 16 for attaching the sleeve halves to the base cylinder

turning protective screen 10 according to the invention for 12, namely by the pressure applied to the upper

Vacuum tubes shown, which is applied to the lower base 40 ends of the sleeve halves

cylinder 12 with an inner compartment 13, whose screen is to close, a high pressure between

Function will be described later, and one radially of the inner surface of the compartment 13 and the bottom of the

inwardly directed flange 15 at the lower end of sleeve half 30 created, which is due to the mechanical

which forms a circular opening 14 which is due to the niche advantage of the

the upper end of the tube socket 16 receives. 45 Juxtaposition of the hinge pin 38 with reference

The fastening ring 18 for the tube socket is created on the ends of the sleeve halves 30, on the metal frame 25 with the help of screws 22. By fastening the base cylinder 12 on the frame and screw nuts 24, with the 25 screwed on, a high contact pressure is created for the screws 22 in two openings 20 in the flange 15 which lie opposite one another at a distance between the bottom of the flange 15 and the frame. Due to the high contact pressure and the base cylinder 12 on these surfaces, a particularly effective heat is created on the frame 25 in a suitable assignment to the exchange path in order to fix the heat from the glass tube holder 16. The fastening ring 18 sheaths 29 away through the elements 46, the sleeve of the tube socket is one with the tube socket 16 halves 30, the base cylinder 12 to the frame 25, which is connected to the metal or is made in one piece. The spring elements ver-part. The side wall of the basic cylinder 12 is also prevented from being scratched, scratched or collapsed with two diametrically spaced apart openings 26 in the glass envelope that could later be created on the glass envelope by sliding the shield edge,
The sleeve halves 30 are to facilitate the installation of the individual parts 60 on the shell 29 of the assembly by means of a clamping connection by means of a clamping element. tes 42 in the form of a cover, which can inside the shaped side wall 43 with essentially the same basic cylinder 12 in a known manner a vacuum ben diameter like the inside of the basic cylinder with a glass envelope 29 with downward 12 has a tube socket 16 . This element 42 can easily be placed on the directed pins 28. With these upper ends of the sleeve halves 30 pushed on, there is enough space between the sleeve 29 and the sleeve halves in an essentially inside of the cylinder 12 to hold the borrowed parallel position (see. Figs. 1 and 3. lower ends of two sleeve halves 30 fitting. In this position, the spring elements 46 are below

5 6

Pressure on the outside of the shell 29, whereby a ring 85 consists of a base ring 87, which can be fixed by effective heat path through the corresponding screws 89, which is ensured by parts. This element 42 is also provided in suitable openings 90 in the base ring, in the frame in the middle with an opening 44 , around which the air ring and in the fastening ring 88 pass,
5 The protective screen fastening ring 85 contains an opening 91 and 92 arranged opposite one another through the spaced apart and diametrically upwardly directed pair of semicylindrical walls, which together with the base ring 87 form a single 26 in the base cylinder 12 and by the spacing 47 pieces or are firmly connected to it and between the adjacent spring elements 46, such as the base areas 84 and 86 of the sleeves 80 and in Fi g. 4 is facilitated. io 82 can keep under pressure. As shown in Fig. 10

In FIG. 6, a slightly modified embodiment is shown, two openings 94 on the connection form of the fastening means 50 for the inventive point of the wall 91 and the base ring 87 take with them the corresponding fastening projections 98 of the basic manure of the tube socket 52 and area 84 to provide a proper connection between a base ring 56 containing a pair of opposed recesses to allow spacing of the tube and the protective screen in FIG. 15. In the same way, openings 96 receive 58 into which the heads 54 of the tube fastening projections 100 of the sleeve 82 receive. To fit the frame fixing screws. The ring 56 between the sleeves and the walls of the fastening is also provided with a pair of opposing means to ensure pressure if the lying, spaced apart radii of the base areas 84 and 86 are cut 60 slightly larger to accommodate the Passage from radially than the radius of the walls 91 and 92. With a practically outwardly protruding projections 62 on the table embodiment, the outer through-side wall of the tube socket 52 was to allow. knife of the base area of an assembled

The in F i g. 6 contains or mounted protective screen about 25 mm, if not a fastening ring 64, which was a 35 rend the inner diameter of the walls of the fastening radially inwardly extending flange 65 with two transmission means was approximately 0.1 mm smaller.
diametrically opposite one another and contained radially immediately above the base region 84

inwardly opening cutouts 66 for receiving the edges of the sleeve 80 has concave and convex parts of projections 62 of the tubular socket 52. 101 or 102, the correspondingly formed convex

This inwardly extending flange 65 30 and concave parts 103 and 104 in the edges of the forms an upwardly sloping surface 68, sleeve 82 can receive to form a kind of tang which after rotation of the ring 64 with the band. The articulation parts of the two sleeves are designed to fit the lower parts of the projections 62 so that they can slide into a slight pivoting movement to rotate the ring 64 against the movement shown in FIG. 9 open position shown to ground ring 56 on the frame of the device to 35 possible. The protective screen sleeves are pressed through. In this way, the interior 67 of the twin eyelets 109 and 110 is held together, which can be arranged in ring 64 like the compartment 13 of the base cylinder 12, pivot pin holes 106 and 108 of the sleeves 80 of the previously described embodiment of the Er and 82 respectively. The eyelets are object of the invention to receive the lower ends of the then slidingly over the inner surface of the sleeves as in sleeve halves 30 therein, with 4 ° Fig. 12 shown crimped around to connect the sleeve parts such sleeve halves in the space between the pivotally. When the tube socket 52 and the ring 64 of the received protective screen are open, the perimeter of the base area is much smaller, creating the screen

The basic cylinder 12 of the FIGS. 1 to 5 represent- easily within the walls 91 and 92 of the fastening embodiment and the ring 64 which can be inserted in 45 gungsringes 85.
Fig.6 are each embodiment. To enable a rotary movement, each

with radially inwardly projecting stops 41 of the sleeve halves, as shown at 115 , provided on their or 69, which have any desired length cut out bottom part. In addition, these can be and the walls 91 and 92 formed in at least part of one of the cut parts with the umbrella assembled on the outside of each sleeve half 30 between the 50 directly next to the spaces between the upward hinge axis and the lower ends of the walls 91 and 92, in order for cooling purposes or recess 39 are included. To be created by an air inlet.

this operative connection, the sleeve halves after The resilient means for damping the heat

Placement of the clamping element 42 in the basic exchange and the vibration according to this execution cylinder firmly anchored and can thus withstand all types of approximately 55 example contain a variety of individual shock and vibration loads during elongated spring elements 120, as best from the operation. 13 can be seen. Since the individual spring elements

A further embodiment according to which the inventions are the same, only one is to be described here is shown in FIGS. 7 to 13 shown. With this den. Each contains a pair of closely spaced embodiments containing two semi-cylindrical 60-arranged inner spring elements 121 and 122, whose shaped protective sleeves 80 and 82 base areas curved inner surfaces with the vacuum tube in 84 and 86 of large diameter, respectively. The sleeves 80 come into contact. The inner elements 121 and and 82 are on their inside at 81 and 83 with 122 are connected to an outer curved part 123 made of a material of good thermal conductivity that is made of one piece with them (e.g. copper). proven. A fastening ring 88 65 to the opposite diagonal parts 124 and fasten a tubular socket 16 and is resiliently connected by means of 125. The outer sides of the two outer fastening screws 89 below the frame parts 123 are fixed with the areas at 81 and 83 mens 25. The protective screen fastening of the corresponding sleeves 80 and 82 are soldered. These

Claims (1)

7 8 Connection enables a particularly excellent base area 84 and 86 of the sleeves to the outside Neten heat exchange between the spring elements against the upwardly directed walls 91 and 92 th 120 and the sleeve halves 80 and 82. are pressed, where they are under pressure with the help of the If desired, an entire filler plate of sealing wire 128 can also be attached. The one made of grooved or corrugated metal, which reduces the pressure increased in FIG. 5, the contact resistance. 8 and 13, to which individual sleeve halves are fastened between the protective screen and the frame and the vibration-damping cuts are then also pulled and improved in order to form the individual spring elements of the spring elements 120. In the same way. For example, soldering paste 126 can be sprayed and applied to the improved soldering of the individual spring elements on the outer surfaces of the outer parts 123, which are in contact with the heat copper plates of the sleeves 80 and 82 between these individual parts, thereby coming into contact with the various sleeve elements . After a tube protection screen with a considerable improvement in the filling plate is created in the immediate vicinity of the heat exchange properties with th.
Plates occupied areas in the correct position. In this way, a highly effective, heat-induced, pressure can be exerted Expand the sleeve and the filler plate. Heat, vibrations, and impact and shock forces can then be traced back to the soldering process by a conventional one, whereby the life of the sol-induction heat cycle process tends to be considerably extended and the facilities are brought to an end. After the filler plate has been properly attached to the sleeve ao maintenance work when replacing individual parts and halves, the repair thereof is reduced. A vacuum tube can be placed in the filler plate, as indicated at 127, can easily be removed from the socket, slots of approximately 0.75 mm can be made by removing the clamping element 42 or 128 around the individual spring elements described above and the sleeve halves outwards to form in an open stel. The arrangement can then be cleaned and pivoted while it is still in the base ring and chrome-plated, and at least the inner one remains attached. In the event that it is desired, the surface can be provided with a dark color (e.g. black sleeve unit from the basic cylinder or basic enamel). ring can be easily removed without loss of In order to firmly connect the sleeve halves to each other- parts are accomplished with a view to the fact that that is, a generally U-shaped lock 30 becomes the articulation between the sleeve halves wire 128 in conjunction with an upper eyelet 130 enable the handling of the same as a single unit used, which eased into the opening 131 of the tubular sleeve. 82 is riveted. As in Fig. In practice of the invention, the eyelet 130 includes an elongated reinforcing tab 132 of the protective screen placed over the tube so that and a small protrusion 134 immediately below there is no downward pressure along the glass below the eyelet. In its correct position, the eyelet will sheath the tube occurs. When the protective screen is secured by positioning the protruding tab 132 times, it will bend over the top of the sleeve 82. The connection over the tube closed without any connecting wire 128 contains a depressed tongue 129 pressure is exerted on the tube pins neither by axial nor rotatable 40 by rotational force in opening 136 and 138 of the sleeve 80. This feature is retained so that when the tubing is assembled, it thus allows a much higher pressure to be exerted on the protective screen on the protective screen, the indented portion 129 of the eyelet tube. 130 can be added in order to further protect the shield sleeves, if the pressure before removal can prevent them from diverging. The removal of the protective shield from the tube, locking wire 128 allows the large mechanical 45 to detach without twisting the socket pins or to help close, pressurize and hold the sleeve halves without removing the tube from the socket. Apart from the fact that this device can be used as a tongue 129 with the reinforcement tab 132 in a protective shield against mechanical influences and as a resilient contact to serve as a heat sink for the sleeves, it also serves as an electrical device to push them together into their closed position, in a protective shield for grounding scattered highly soft layer the tongue 129 in the opening of the eyelet frequency signals, which is the function of the vacuum tube 130. The projection 134 serves to prevent adversely affecting
that the tongue 129 is pushed down
and comes into contact with the sleeve 82. Patent claims: The protective tube screen of this version is 55 game is in the same way as in the previous 1st heat dissipator, in one described in a fiber Example of an embodiment to be attached to the vacuum tube plugged into the tube set. After the fastening ring 85 on the protective screen with on the inside of the protective socket the tube properly fastened and the tube fastened in the shield, in the state of use the the socket has been inserted, the protective 60 glass cylinders of the tube under pressure contact shield halves, as in Fig. 9 shown, diverging heat-conducting spring elements and with moved so that they are easily placed in the fastening ring and a thermally conductive shield can be. The protective screen is then attached to the device with a ring brought into the correct position so that the fastening part is in connection with the heat dissipating part, projections 98 and 100 immediately next to the ent- 65 characterized in that the speaking openings 94 and 96 lie. If the protective screen consists of two z. B. semi-cylindrical Protective screen is brought into the correct position, sleeve halves (30) consists of the form-fitting and the sleeve halves are closed, with the relation to its longitudinal axis about an axis approximately perpendicular to this are pivotally connected to each other, and that the lower end of the sleeve halves is kept under pressure in the ring (12) attached to the device when in use, while the sleeve halves by means of gill means (42) against the action of the pressure and the spring elements are prevented from this effect compensating pivoting movements (Fig. 1). 2. Protective screen according to claim 1, characterized in that the pivot axis is close the end of the sleeve clamped in the ring when in use. 3. Protective screen according to claim 1 or 2, characterized in that the outside of the Sleeve halves between the lower end and the pivot connection of the same with a groove or recess (39) is provided and that the ring (12) is a radially inwardly projecting Has a stop (41) which is received in the groove or recess of the sleeve shells, when the sleeve halves are in the mutually parallel position, around the sleeve halves to be closely connected with the ring (Fig. 2). 4. Protective screen according to one of the preceding claims, characterized in that in In connection with a tubular socket (52) an outer fastening ring (64) is formed radially inwardly extending flange (65) with an inclined surface (68) directed towards the sleeve, wherein the flange has a radial recess (66) into which a radially outwardly projecting Stop (62) of the tube socket fits, which after the rotation of the ring (64) with the Surface of the flange is brought into wedge connection, thereby the ring with the tube socket closely related. 5. Protective screen according to claim 1, characterized in that a closure cap as the clamping means (42 in F i g. 1) with an annular side wall that the opposite Receives ends of the sleeve halves releasably. 6. Protective screen according to claim 1, characterized in that the thermally conductive elements are soldered to the inner surfaces of the sleeve halves. 7. Protective screen according to claim 1, characterized in that a pivotable clamping means Fastening wire attached to one of the sleeve halves and connecting means for the Serve fastening wire, which are attached to the other half of the sleeve (Fig. 8). 8. Protective screen according to claim 1 and 2, characterized in that the interior of the protective screen has a dull-colored, blackened surface. Considered publications:
German publication No. 1111741. 1 sheet of drawings 509 687/337 9.65 © Bundesdruckerei Berlin