DE1720548U - BLOCK-SHAPED INSERTED ELECTRICAL DEVICE WITH COOLING DUCTS. - Google Patents

Description

- _{jo 1720S48} Wilhelm Children's

K.G., Villingen (SAwarzw.). J Bottom-shaped encapsulated electrical device with IJJ. ΑΓΚ. GBO Cooling channels. 9/11/54. B 19202. (T.4;

Wilhelm Binder K.O. ViUinson / Black. 9 9 & * // Gebr aucha nuste r-Help an noldung

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Block-shaped, oased electrical device with ventilation channels

It is known that bo is operating electrical appliances with El eensy never stow An efficiency of lOOjS can be achieved because some of the trains have electr. Power is converted into heat in the devices, on the one hand in the copper windings and on the other hand in the iron system.

Various routes have been taken to remove this heat, either by installing additional metal air ducts, so that cold air on the windings and blown past the sheet metal system, or by placing it in an oil bath which dissipates the heat from the winding and iron core to the surrounding air. Also known are designs with waveguides through which the coolant is passed wlru as well as arrangements of cooling ducts between the insulation and the surface of the head and finally the creation of cooling channels by dividing of the individual spjlens seldom in the longitudinal and transverse direction.

] With these arrangements, valuable changing space is lost, after which large material

al effort arises. In addition, these designs are structurally very complicated.

j; borrowed and to produce only at great expense.

ii According to the invention, these disadvantages are avoided in that the devices with

^ Help the Oiessmass to be poured into a block, including the continuous Fan ducts.

Any thin-walled tubes can be used in the casting mold to produce the cooling channels Cross-section are inserted, which after cooling of the G essasse in the Oiessloch remain or can also be removed.

Because the glass mass has a high mechanical strength, it needs Only a thin cast wall thickness must be provided between the device and the cooling duct, which means it is possible to relocate the cooling channels in the immediate hub of the parts that are being heated, thereby allowing the heat to be dissipated quickly to the surrounding air is secured.

The present invention is based on the favorable properties of the casting compound [ which are in summary:

K.G .. ViHingcn (SAwarstO. J Block-

molded encapsulated electrical device with IS, ArK. KU6

Cooling channels, il. 9. 54. B 19202. (T.4;

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good thermal conductivity, great heat resistance great oeohanic strength, grease isolatlon Greatest operational safety with low material costs and arbitrary shaping by simple means sur expedient shaping and shaping with the same Dimensions.

Due to the good thermal conductivity of the oleic mass, as already said, the wall thickness is only mm, which makes it possible, with the inclusion of the cooling ducts, to increase the size of the cooling surface many times over in compliance with the previous Auesen dimensions.

In the case of electric motors, for example, the winding in the stator is filled with a casting compound in such a way that that the winding heads are additionally cooled, i.e. the surface the olessfcrm is designed in such a way that cavities are created through which air can flow is sent through by fans, so that the heat of the winding as possible quickly gets into the surrounding air, which means that they are constructed in this way Devices are overload detectors as before.

F This makes the extremely sensitive selenium plates special in rectifiers It is important to note that the additional arrangement of air ducts achieves excellent cooling of the panel surface. The pouring of the selenium plates asked also the advantage that they cannot be damaged by external influences, as well as a great mechanical flexibility is given to the device, so the selenium rectifier for the heaviest operation in general mechanical engineering can be used.

The winding of transformers or electric motors are in addition to general mechan Stresses are also subject to no dynamic forces. In the event of a short circuit considerable electrodynamic forces occur within the windings that lead to Mastery in building the transformer is known to cause difficulties. Through the Using the olefin it is easily possible to embed the winding in such a way that that they are better able to cope with the dynamic forces occurring in the event of a short circuit are.

The same is also true of the iron systems of electrical appliances, which are significant are subject to magnetic forces. Here it is with the Giessraasse without further ado possible to safely control the magnetic forces. It arises at the same time the advantage that the devices are bruram-free, which was only extremely difficult with the means known up to now.

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21d ² , 50. 1720543. Wilhelm Kinder-KG. ViHingen (Black «.). I Block molded, molded electrical device with IS. MX cooling channels. 9/11/54. B 19202. (T.4;

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Since the Olessmasee has the property of being insensitive to moisture be, the devices encapsulated with this can be built into "earth" locations that be influenced by oil or water mist.

Due to the insulating capacity of the glass mass, the electrical Devices required contact protection can be achieved in a simple manner; can send out, for example, the Aneohluesklennen herds designed in such a way, that they are poured in old.

By adding quartz or graphite, the heat transfer of the Olessma lake increased and dark coloration caused by the addition of graphite the radiation of the heat is also promoted.

In order to increase the strength of the Oiessblookes, it can be combined with a Sheath are surrounded, or corner corners are attached.

In Figure 1 is an exemplary embodiment of a two-legged single-phase transformer shown according to the invention, whereas from Fig. 2 an example Execution of two single-phase transformers combined can be seen with a selenium rectifier.

Here, the iron core 1 with the coil 2 and, in FIG. 2, the selenium plates 7 with the introduction of the continuous molding channels 3 adapted to the devices are encapsulated with the glass compound to form a sheet, the metal jacket 5 or the corners 6 serving to increase the strength of the respective casting block.

Claims (4)

K.G., Villingen (SAwarzw.). | Block-shaped encapsulated electrical device with] 3rd ArK. aX cooling channels. 9/11/54. B 19202. (T. 4; Sohutzanaprüohe 1) Block brackets, non-molded electrical devices with cooling ducts, thereby gsksnnzeiohnet, that one or more parts belonging to an oieeaeaee old of an oieeaeasae be uegoeeen to a single block, with the inclusion of continuous cooling ducts. 2) Elektrogerlt according to claim 1, characterized in that the cannula in the Positioned close to the parts to be calibrated and adapted to the inner shape of the tea are. 3) Electrical device according to Claim 1, characterized in that the accessories, like Anacblueeekleanen etc. are arranged in an olessblock. 4) Electrical device according to claim 1, characterized in that one, the oless block Covered jacket or corners to increase the mechanical resistance contribute.