DE8120156U1 - CONTAINER WITH RADIATORS AND / OR PANELS ON THE CONTAINER WALLS - Google Patents

Description

DORNIER SYSTEM GMBH File number: G 81 20 156.7

7990 Friedrichshafen

Reg. S 388 Gm |

Container with heating elements arranged on the container walls:

bodies and / or panels L

The innovation relates to a container with radiators and / or panels arranged on the container walls.

In space travel, especially with the satellite technology used here, there is often the problem of finding a certain container, for example a so- ■ {.

named electronics box for various heat transfers or i

Warmedissipatxonen inside the box and variable um- f

ambient temperatures at a certain temperature too hai- '

ten. A radiator is used for this, which is either through;

radiators arranged on the inner surfaces of the box, so f

called heating mats and / or by on the outside of the box; regulated louvre-like, so-called Louver systems will. The condition here is that in any case the ambient temperature is significantly below the box temperature,

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otherwise this arrangement fails.

A further disadvantage is that a radiator controlled by heating mats is very much electrical under unfavorable circumstances Consumes energy, whereas a Louver radiator has the disadvantage that it is not sufficiently accurate and safe is working.

Based on this, it is the task of the innovation to create a device with which heat transfers or heat dissipations inside containers and the various temperatures surrounding them with minimal electrical requirements Energy can be regulated precisely and reliably and which are still flawless and even at higher ambient temperatures works safely.

According to the innovation, the features of the characterizing part of claim 1 are provided to solve this problem. Advantageous refinements of the innovation emerge from the subclaims.

The advantage of the innovation is that through the use of Peltier elements, which have a heat transport system represent, this by using electrical energy in a temperature potential field Can actively promote or hinder or prevent heat flow or allow for the same temperature potential, as well as from can bring a lower potential to a higher one.

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The Peltier element or elements can function as a refrigeration machine, a heat pump, or a heat flow valve and a heat flow amplifier take over. Another advantage of the proposed innovation or the Peltier radiator Compared to the conventional arrangements, there is still the fact that it covers a larger temperature range the environment and works as a heat flow brake and blocker.

The container or the Peltier radiator consists of two aluminum plates with Peltier elements arranged in between, the number of which is to be determined according to the given conditions. To disruptive heat returns outside To avoid the Peltier elements, the inner surfaces or sides of the aluminum plates should at least have a low emission coefficient or be separated by a super-insulation. Furthermore, about the fasteners, which connect or hold the aluminum plates together, only a small heat flow to be available. These fastening or connecting means should therefore be made of a material that is a poor conductor of heat consist, e.g. nylon bolts or screws or the like .. The one on the top of the radiator by radiation or conduction The heat flow that is absorbed is reduced by the Peltier elements acting as a refrigeration machine or heat pump Brought a higher temperature level, so that the underside of the radiator with an increased temperature against the environment shine. The temperature of the environment is allowed

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be higher than in comparison with a regulated with heating mats Radiator. The Peltier radiator is also effective as a heat flow brake, e.g. by reversing the polarity of the electrical current, whereas it consumes less electrical energy than the heating mat-controlled radiator. The Peltier radiator can also be operated in such a way that no heat flow passes through and thus acts as a thermal valve, i.e. in the "closed" position there is "isolation"; e.g. through suitable electrical control or switching, a such a container or one and the same radiator all functions.

For example, the container or the radiator has Peltier elements connected between the aluminum plates can also be designed in such a way that it is responsible for the minimum heat transfer or dissipation in the box and maximum temperature the environment dissipates the heat without absorbing electrical energy. With increasing heat dissipation in the Box, the Peltier element (s) then works as a refrigeration machine or heat pump, in which these the additional Dissipate the amount of heat to the underside of the radiator at an increased temperature level. If, on the other hand, the ambient temperature changes to a much lower temperature level, the Peltier elements work e.g. by reversing the polarity of the electrical current direction as a heat flow brake. In this case, the temperature of the box to be controlled remains in constant in each case. Except for the advantages already mentioned

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the innovation or the Peltier radiator still has the properties that it still has compared to other systems works at higher ambient temperatures and, e.g. measured on a radiator controlled by heating mats, less ger electrical energy consumed. The Pel- |

tier radiator compared to an f

Radiator in temperature control more precise and practical>

not susceptible to failure; in addition, it offers, on the other hand, expanded services

possible applications. For example, by combining f

of two Peltier radiators facing different |

changing environments, an operation f

borrowed, where both radiators in the already described |

Way or just one radiator while the other |

prevents any heat flow or flow, (e.g. with |

Heat radiation from outside). |

In connection with heat pipes, l '

thermally controlled parts (e.g. boxes) to any

in places and thus controlled by various radiators']. A suitable combination of

Peltier elements and heat pipes it is possible to have one; To realize "thermal switch" and thereby heat flows alternately in different directions and to different ones To direct radiators.

Embodiments are described below and by

Sketches explained. t

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1 shows an electronics box with Peltier radiators arranged on its underside,

FIG. 2 shows a section of the Peltier radiator according to FIG. 1,

3 shows the electronics box with Peltier radiator according to FIG. 1 . and 2 and attached heat pipes.

1 shows the section through an electronics box 1, the interior 1 'of which is delimited at the bottom by a Peltier radiator 2 and, on its other three sides, by walls 4, 5, 6 provided with insulation 3. Heat flow Q (see arrow) emanating from an environment 7 radiating at variable temperatures, in which electronics box 1 is located, and penetrates through its walls 4, 5, 6, experiences a heat transfer or heat dissipation Q _dis (see FIG Arrow) in the direction of the underside through the Peltier radiator 2 arranged there. A section 8 of the Peltier radiator 2 is shown enlarged in FIG. Between two aluminum plates 9, 10, of which the upper 9 faces the interior 1 'and the lower 10 faces the environment 7 of the electronics box 1, a number of Peltier elements 11 (also FIG. 1) are arranged at intervals a from one another. The aluminum plates 9, 10 have different emission coefficients ζ _f on their surfaces 12, 13, 14, 15 of which the surfaces 12, 13 facing the interior 1 'and the surroundings 7 have a value of £ as 0.85 and the (inner) Areas 14, 15 have a value of f * 0.05

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sit. Both aluminum plates 9, 10 are connected by at least one connecting means made of poorly thermally conductive material 16 (e.g. nylon screw) connected or fastened to one another. The distances a between the Peltier elements 11 are designed against heat flow with an insulation 3.

In FIG. 3, an electronics box 1 described in accordance with FIGS. 1 and 2 is shown as part of a satellite housing 17. The Peltier radiator 2 arranged on the underside of the electronics box 1 (see also FIGS. 1 and 2) is through Heat pipes 18, 19 attached thereto (see also section AA) with radiators 20, 21 arranged on the satellite housing 17 tied together. The Peltier radiator 2 works in the one shown Modification as a thermal switch.

12/22/1982
Kr / Sz

summary

The innovation is used to control the heat of a container that is self-contained in relation to its surroundings. Of which is
at least one wall (4, 5, 6) of the container (1) carrier of a radiator (2) which consists of Peltier elements (11) arranged between two aluminum plates (9, 10).

12/22/1982

f; Kr / Sz

1 electronics box

1 'interior of the electronics box

2 Peltier radiators

3 isolation

4,5,6 walls of the electronics box

7 Environment of the electronics box

8 Section of the Peltier radiator

_1n ^ aluminum plates

11 whipping elements

₁ A surfaces of the aluminum plates

16 Lanyards

17 satellite housing

₁ Q i heat pipes _5;

₂₁ I radiators j

Q heat flow |

Q ,. Heat dissipation or heat transfer |

a Spacing of the Peitier elements |

£ Emission coefficient f

July 6, 1981
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Claims (1)

H · t t t • · »· I I I · r r ψ * · Ill ··· DORNIER SYSTEM GMBH File number: G 81 20 156.7 Friedrichshafen Reg. S 388 Gm PROTECTION CLAIMS: 1. Container with radiators arranged on the container walls and / or panels, characterized in that at least one container wall (4, 5, 6) has a radiator (2) j , which consists of between two aluminum plates (9, 10) arranged per se known Peltier elements (11) exists or is designed as their carrier. 2. Container according to claim 1, characterized in that the Peltier elements (11) facing inner Surfaces (14, 15) of the aluminum plates (9, 10) at least have a low emission coefficient (6). 3. Container according to claims 1 and 2, characterized in that the connecting and fastening means • · t * (16) (e.g. bolts, screws, rivets, etc.) of the aluminum plates (9, 10) have a minimal thermal conductivity
exhibit. 4. Container according to claims 1 to 3, characterized in that the Peltier elements (11) heat flow brakes are. 5. Container according to claims 1 to 4, characterized in that that the Peltier elements (11) are thermal valves. 6. Container according to claims 1 to 5, characterized in that on the Peltier elements (11) heat pipes (18, 19) are attached. 12/22/1982
Kr / Sz