DE102007020627B3 - Connection element for a radiator - Google Patents

Abstract

The connection element (1) has a cylindrical connecting piece (3, 4) extending in opposite directions from a central part (2) which is formed in the shape of a spherical segment and a sleeve (7) attached transversely to the central part (2). In the central part (2) adjacent channels (17, 20) are provided, of which a first channel (17) in a first nozzle (3) opens and with the interior (19) of the sleeve (7) and in the Second nozzle (4) opening second channel (20) in the region of the sleeve (7) heating medium is conductively connected. The channels (17, 20) are formed on an insert body (11), which is fixed in position by bridging the central part (2) in the socket (3, 4).

Description

The The invention relates to a connection element for a radiator according to the features in the preamble of the claim 1.

Such a connection element counts in the scope of EP 1 249 285 B1 to the state of the art. The middle part and the nozzles are formed in one piece. They are produced by cold extrusion. In the cuboid center part of the channels are introduced in the form of holes. At the middle part of the sleeve is welded to the side.

you recognizes that for the production of the connection element several successive following steps using appropriate devices and molds are required, which increase the manufacturing cost. These include the production of the blank on the way cold extrusion, which adjoins Welding process of the lateral sleeve, the subsequent production the holes in the middle part through the nozzles, the production of Heating medium conductive connections between the sleeve and the two channels over a stepped bore through the sleeve and ultimately the radial retraction the connecting piece to the conventional connection dimensions to get.

From the DE 298 06 381 U1 is a connection element for the connection of the flow and the return of a heating system with a plate heater known, which has a spherical shaped connector housing with an integrated therein insert body. The insert body divides the interior of the connection housing in a flow chamber and in a return chamber.

Of the Invention is - starting from the prior art - the Task underlying, a connection element for a radiator and to propose a method for producing such a connection element, the manufacturing technology cheaper and therefore more economical are.

What the solution of the objective part of this task arrives, it is seen in the features of claim 1.

Of the Middle part and the nozzle of the connection element can now be made easily from a pipe section. The device technical effort in cold extrusion thus disappears. The channels for the transfer of the heating medium are no longer directly in the middle part, but formed on a separate insert body, which stands alone completely manufactured, then over one of the connecting pieces introduced and then fixed in the areas of the nozzle can be, which is attached to the spherical segment-shaped central part connect. It only has to be the wall of the middle section be drilled in the area of the sleeve to the desired Heating medium conductive connections within the connection element manufacture.

One Another advantage of the invention is that the connection element on both end faces of a radiator, in particular one Panel radiator, can be attached because of a lockable valve seat between the two channels both Neck can be flown. Thus it is possible, the sleeve of the one end of a radiator arranged connection element with a valve, in particular thermostatic valve, to be provided and provided in the sleeve of the other end face Connection element to use a vent valve.

Of the Insert body is as a cylindrical finished part of a Sintered material designed. The production of a sintered material allows it in a comparably simple way, deviating from round cross sections To create unconventional channel contours to optimally the available to be able to use standing installation space.

In Preferred embodiment of the insert body of a Sintered material is according to the features of the claim 2, the first channel of a segment-like lateral recess of Insert body and the wall of the middle part formed while the circumference and closed at one end, in cross section semicircular 2nd channel extending in the longitudinal direction extends the insert body and a stepped Transverse bore is connected to the 1st channel.

The Position fixation of the insert body in the nozzle can accordingly the features of claim 3 by means of pressure welding.

imaginable but is also a definition of the insert body means Press fit (claim 4).

The Solution of the procedural part of the invention underlying object consists in the features of the claim 5th

Corresponding This method is initially a straight pipe section by upsetting in the spherical segment-shaped central part with the subsequent cylindrical neck reshaped. Subsequently, the pre-channeled insert body over one of the nozzles introduced and fixed in position in the socket. Thereafter, the sleeve provided with an internal thread is transverse to the welded spherical segment-shaped central part. about the sleeve is then drilled out the wall of the middle section and simultaneously is the stepped transverse bore between the two channels produced.

The Invention is illustrated below with reference to an illustrated in the drawings Embodiment explained in more detail. Show it:

1 in the side view of a connecting element for a radiator in the direction of arrow I of 2 seen;

2 a cross section through the representation of 1 seen along the line II-II in the direction of arrows IIa;

3 an end view of the connecting element of 1 and 2 seen in the direction of arrow III;

4 another end view of the connecting element of 1 and 2 seen in the direction of arrow IV;

5 in perspective, an insert body for the connection element of 1 to 4 in the raw state;

6 an end view of the insert body of 5 seen in the direction of the arrow VI and

7 a cross section through the representation of 6 along the line VII-VII seen in the direction of arrows VIIa.

With 1 is in the 1 - 4 denotes a connection element for a radiator not otherwise shown. Such a connection element 1 is provided on the end faces of the radiator, in particular a panel radiator, and connected here to the heating circuit. It serves in the manner described in more detail below the inclusion of a thermostatic valve or a vent valve.

The connection element 1 initially comprises a spherical section-shaped central part 2 with itself from this middle part 2 from extending in opposite directions cylindrical nozzle 3 . 4 , To connect the neck 3 . 4 with tubes of the heating circuit are the end of the nozzle 3 . 4 both inner and outer chamfers 5 . 6 intended.

At the middle part 2 is transversely projecting a sleeve 7 welded. The sleeve 7 has an internal thread 8th and an end flange 9 , In the sleeve 7 can - as already indicated above - a thermostatic valve or a vent valve are screwed. As in particular from the 2 recognizable, is the wall 10 of the middle section 2 in the area of the sleeve 7 drilled. Thus, here is a recess 18 educated.

By bridging the middle section 2 is over one of the neck 3 . 4 a largely cylindrical insert body 11 introduced and in the middle part 2 adjacent inner ends 12 the stub 3 . 4 fixed in position. The position fixation can be done by means of pressure welding or press fits.

The particular from the 2 and 5 - 7 recognizable insert body 11 consists in the embodiment of sintered material. It has an over the substantial part of its length extending lateral segment-like recess 13 on. This runs from one end face 14 of the insert body 11 up to a semicircular projection 15 adjacent to the other end face 16 , The recess 13 forms like that 2 shows, along with the wall 10 of the middle section 2 a 1st channel 17 that is above the recess 18 in the wall 10 with the interior 19 the sleeve 7 Heating medium is conductively connected. In addition, the first channel opens 17 according to the representation of 2 in the first nozzle 3 of the connection element 1 ,

Parallel next to the recess 13 extends a 2nd channel 20 with a semicircular cross section. This 2 , channel 20 is from the end section 21 of the insert body 11 to the first neck 3 locked out. However, it flows into the second nozzle 4 ( 2 ).

The 2 moreover shows that in the assembled state of the connecting element 1 the 1st channel 17 and the 2nd channel 20 via a stepped transverse bore 22 Heating medium are conductively connected. Here, the larger diameter section 23 the transverse bore 22 be used as a sealing seat for a thermostatic valve.

In the course of the production of the connection element 1 according to the 1 - 4 is first by compression deformation of the spherical segment-shaped central part 2 with the adjoining neck 3 . 4 made of a straight pipe section. Subsequently, the pre-channeled insert body 11 in the neck 3 . 4 fixed in position. Then the one with the internal thread 8th provided sleeve 7 transverse to the middle part 2 welded. Ultimately, the wall becomes 10 of the middle section 2 in the area of the sleeve 7 with simultaneous production of the stepped transverse bore 22 between the 1st channel 17 and the 2nd channel 20 drilled.

1

connecting element

2

Middle section v. 1

3

1. nozzle v. 1

4

2nd nozzle v. 1

5

inner chamfers 3 . 4

6

outer chamfers 3 . 4

7

Sleeve v. 1

8th

Inside thread in 7

9

Flange on 7

10

Wall v. 2

11

insert body

12

inner ends v. 3 . 4

13

Recess on 11

14

Front side v. 11

15

Lead v. 11

16

Front side v. 11

17

1st channel in 11

18

Recess in 10

19

Inside v. 7

20

2nd channel in 11

21

End section v. 11

22

Cross hole in 11

23

Section v. 22

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1249285 B1 [0002]
• DE 29806381 U1 [0004]

Claims (5)

Connecting element for a radiator, which comes from a central part ( 2 ) extending in opposite directions cylindrical neck ( 3 . 4 ) and a transverse to the middle part ( 2 ) socket ( 7 ), wherein in the middle part ( 2 ) adjacent channels ( 17 . 20 ), of which a first channel ( 17 ) into a first nozzle ( 3 ) and with the interior ( 19 ) the sleeve ( 7 ) and with the in the second nozzle ( 4 ) 2nd channel ( 20 ) in the area of the sleeve ( 7 ) Heating medium is conductively connected, characterized in that the channels ( 17 . 20 ) on an insert body ( 11 ) are formed, the bridging of the spherical segment-shaped central part ( 2 ) in the neck ( 3 . 4 ) is fixed in position, wherein the insert body ( 11 ) is designed as a cylindrical finished part and consists of a sintered material. Connecting element according to claim 1, characterized in that the first channel ( 17 ) of a segment-like lateral recess ( 13 ) of the insert body ( 11 ) and the wall ( 10 ) of the middle part ( 2 ) is formed, while the circumferentially and at one end portion ( 21 ) of the insert body ( 11 ) closed, in cross-section semicircular 2nd channel ( 20 ) in the longitudinal direction of the insert body ( 11 ) and via a stepped transverse bore ( 22 ) with the first channel ( 17 ) connected is. Connecting element according to claim 1 or 2, characterized in that the insert body ( 11 ) press-welding in the nozzle ( 3 . 4 ) is attached. Connecting element according to one of claims 1 to 3, characterized in that the insert body ( 11 ) by means of press fit into the socket ( 3 . 4 ). Method for producing a connection element ( 1 ) according to the features of at least one of claims 1 to 6, characterized in that first by means of compression deformation of the spherical segment-shaped central part ( 2 ) with the adjoining connecting piece ( 3 . 4 ) made of a straight pipe section and then the pre-channeled insert body ( 11 ) in the neck ( 3 . 4 ) are fixed in position, after which the with an internal thread ( 8th ) provided sleeve ( 7 ) transversely to the middle part ( 2 ) and then the wall ( 19 ) of the middle part ( 2 ) in the area of the sleeve ( 7 ) with simultaneous production of the stepped transverse bore ( 22 ) between the first channel ( 17 ) and the 2nd channel ( 20 ) is bored.