DE19858794A1 - Versatile thermal storage medium comprises substrate body with pores containing paraffin wax and fiber reinforcement, useful in conjunction with e.g. under floor thermal heating and transport containers - Google Patents

Abstract

Inside the open capillary pore structure (8) of a mineral substrate (5), capillary volumes (6) accept a latent heat storage material (7). An Independent claim is included for the method of making the corresponding body. The thermal storage medium is liquefied, to be absorbed into the capillaries of the substrate. Preferred features: The mineral is a gypsum and/or clay and/or calcareous sandstone and/or siliceous earth. Fibers (12) are included, distributed throughout the substrate. Latent heat storage medium amounts to 5-50%, preferably 25% or best of all 40-50% of the total mass. Volume variation of the medium with temperature, is up to 10% of the residual airspace (11), which is distributed evenly over the capillary acceptance volume. The medium includes thickening material, with a proportion of mineral oil and polymers. The body is encased in sheet impermeable to the medium. The substrate has cohesive structure. The body is divided, each portion according with the foregoing. It is plate- or panel-like. A hot plate (i.e. heat-retaining) version, holds rice especially. Further variations and developments are described. Features noted include inclusion of heating, covering of the body, external thermal insulation and use in floor heating. Materials with temperature-staggered phase transition temperatures may be included in a single flooring structure, one changing phase at 53 deg C, another at 42 deg C. A transport container has a jacketed construction containing the body. A feature of the method, is that the substrate may contain wood fibers and/or card and/or siliceous earth granules and/or diatomaceous earth. Granular and conglomerated structures are described, together with further variants and developments.

Description

The invention relates to a latent heat body with in a carrier material having receiving spaces paraffin-based latent heat storage material.

From the German utility model 84 08 966 is a porous foam material known as a carrier material. With this foam material, however, none is also warmed state of the latent heat storage material to achieve the desired structural strength. Moreover the porous foam material is not easy soak with the latent heat storage material, but special measures such as squeezing must be taken become.

From the unpublished PCT / EP 98/01956 also known a latent heat body, in which further towards the carrier material from individual carrier materials elements is composed, for example, by gluing, in any case between the carrier material elements capillary-like receiving rooms for latent heat storage are formed. The content of this Scripture is hereby also fully in the Offenba tion of the present application also included the purpose, characteristics of this document in claims gender registration.

Based on the aforementioned German utility model ster 84 08 966 is the object of the invention de to specify a latent heat body, which is simple at producibility is highly effective, d. H. a high one Has heat storage capacity, and at the same time sufficient structural stability when heated  speed and in particular increased static Requirements are sufficient. Another goal is that the carrier material as automatically as possible with the latent fills or absorbs heat storage material and a high retention rate for latent heat storage material may have.

This task is first and foremost Subject of claim 1 solved, being abge is that capillary within the carrier material Recording rooms for the latent heat storage material forms and that the carrier material is a mineral material with an open capillary pore structure holds. With such a mineral is to a absorbent solid structure thought, preferably from a plaster material, or a clay material, or made of sand-lime brick or silica (dolormin earths) or from any combination of these materials en. Preferred raw materials are untreated gypsum slabs, gypsum granules, silica granules (Dolorminer the). In addition to universal availability and these products meet low raw product prices increased static requirements, fire protection requirements conditions and have a comparatively high thermal conductivity speed. Latent heat body with such a solid structure compared to latent heat bodies with one carrier material consisting of fibers as a rule a smaller one, but for numerous applications sufficient mass fraction of latent heat storage material al, preferably as the latent heat storage material Paraffin, but also stearin, fat or similar substances can be used. Compared to latent heat bodies with a higher mass fraction of latent heat storage material this results for the latent heat according to the invention body especially against the background of low  Raw product prices of the carrier material are a cost advantage. Nevertheless, there is also an inventive one Latent heat body the possibility that the carrier material al in addition to a mineral also fiber elements contains, which is preferably distributed in the carrier material are arranged. The fiber elements can basically best of organic and / or organic materials hen and in particular from those in PCT / EP 98/01956 mentioned materials can be selected. Exemplary in this context is based on organic materials such as plastic, cellulose, or wood, ceramic, mineral wool, plastic, cotton or sheep's wool. Fiber elements made of plastic preferably have base material like polyester, polyamide, polyurethane, polyal crylnitryl or polyolephine. Generally can Fiber elements also made of different materials a very different length and a very under different diameters in any combination be used. A carrier material that complements a mineral with an open capillary pore structure d. H. absorbent solid structure, in addition Contains fiber elements, depending on the mass selected share optimized for a particular application Have properties. So adding Fiber structures usually have an increased storage capacity for latent heat storage material and a ring thermal conductivity. The latter leads at the same time to increase the withdrawal time, d. H. to a slowdown in heat transfer that occurs in many Applications offers advantages. Furthermore, the Mineral with the open capillary pore structure and the fiber elements in other material properties ten or features, such as density, heat storage capacity, the coloring and the like, under divide so that by appropriate choice of correspond  a targeted coordination of the carrier to the proportions materials for the respective application possible is. Overall, it is clear that such a station wagon nation the range of application of carrier material considerably Lich increased.

It is particularly preferred that the latent heat storage material erial is or based on such a paraffin Paraffins is constructed, as in DE-OS 43 07 065 is described. The content of this pre-release is hereby incorporated fully into the disclosure of this Registration included, also for the purpose of characteristics this prior publication in claims of the present Registration included. In a preferred embodiment tion is the mass fraction of the latent heat storage material terials, based on the total mass of the latent heat pers, between 5 and 50%, preferably 25% or more preferably 40 to 50%. The open capillary pores structures due to their capillary suction also referred to as "suction structures" are in an advantageous embodiment designed so that therein a preferably evenly distributed residual air volume remains, the temperature-dependent volume Changes of the latent heat storage material of preferred maximum 10% of the latent heat storage material volume records. Thermal expansion of the sizes mentioned order are compared to usual maximum overheating the melting temperature of the latent heat storage material assigned from 30 to 40 ° K, so that it is due to the Recording or compensating for this temperature-dependent changes in volume caused by the residual air volumes these conditions do not exude the latent heat mespeichermaterials comes from the carrier material. Nevertheless, the latent heat body according to the invention can through a latent heat storage material with it  additives such as preferably thickeners and / or a proportion of mineral oils and polymers and / or other of those in PCT / EP 98/01956 and / or the additives mentioned in DE-OS 43 07 065 in the Be adapted to special applications that even in the event of exceedances exceeding the above the melting or phase transition temperature none Sweating out the latent heat storage material from the Carrier material is possible. Alternatively or in combination the latent heat body can have a covering, which are preferably made of a film material, such as. There is plastic or aluminum foil. It is especially one for latent heat storage material impermeable covering thought. For certain users However, the wrapping can also be advantageous specifically permeable to latent heat storage material form, for example by introducing small pores in an impermeable to latent heat storage material Foil material so that a desired "breathability" the wrapping is given. Such breathability act can z. B. then be advantageous if the latent heat body additionally a hygroscopic material stops, because then the possibility to withdraw the moisture bound to the hygroscopic material consists of the surroundings of the latent heat body. In this is also the context of the disclosure content of DE 198 36 048.7 in full with in present Registration included, also for the purpose, be features written in claims of the present application recording.

First, it is thought that the carrier material in a latent heat body as a coherent structure is formed, d. that is, from the mineral with the open capillary pore structure and, if necessary, the inside  additionally contained fiber elements a coherent gender body with contained capillary uptake cleared for the latent heat storage material is. One from a mineral with an open kapil laren pore structure and formed from fiber elements Carrier material can through the capillary pore structure capillary recording spaces and / or conditional alone adjoining fiber elements formed capillary Recording rooms and / or through mineral compound capillary receiving spaces formed with fiber elements contain. Under an open capillary pore structure becomes a pore structure in the sense of the invention understood who verbin in terms of their openness between the individual pores and between the in Pores lying close to the surface or edge Environment and with regard to their capilla a self-priming effect on latent heat storage exercises material. According to the invention, an open capillary pore structure even with a carrier material get that in addition to a mineral too Includes fiber elements. The pores or capillaries Recording spaces can be channel-like, especially with variable channel cross section and / or also spherical or similar cavities hold, but are also other additional shapes conceivable.

As an alternative to a coherent structure of the Backing material is in an alternative embodiment Form of the latent heat body provided that this one Contains number of latent heat partial bodies, one Latent heat partial body a carrier material part body and that in the capillary receptacle contained therein men latent heat storage material and that also existing in the capillary recording rooms  Contains residual air volume. The latent heat according to the invention body or the absorbent solid structures can for example in the form of plates, building blocks, granules or other shapes for a variety of tasks be used. So there is z. B. the possibility Slabs or building blocks independently or in construction onsverbund (walls) to use. Other possible applications cases are a warming plate for food tel, use in conjunction with a floor heater tongue and a transport container, on which in connection with the figure description in more detail becomes.

The invention further relates to a method for the production of a latent heat body with in one carrier material having capillary receiving spaces absorbed latent heat storage material on paraffin Base. Generic methods are not from the prepublished PCT / EP 98/01956 and from the just if not previously published DE 198 36 048.7 be knows. The invention is based on the object specify a method by which the aforementioned latent heaters in a simple and inexpensive way can be put. According to the young is the Task focused on that the latent heat storage material is liquefied that the previously liquefied Latent heat storage material on self-priming, kapil lar-like receiving spaces of the carrier material leads and that a carrier material is used which is a mineral with an open capillary Contains pore structure. The carrier material or the Mineral material and the latent heat storage material can preferably one or more of each Features described above. In particular there is the possibility that the mineral fiber selenium  elements are added that also include one or more re of the features explained above for this purpose nen. It is preferred that the fiber elements in the mine Raw materials are evenly distributed. For example there is the possibility, starting from a Rohzu stood the mineral in which it is pourable in liquid, pasty form, fiber element elements into the mineral until it is before has taken an even distribution and in further procedural steps, if necessary, first a Liquefaction and then by thermal Treatment (burning) a desired absorbent hard fabric structure, d. H. an open capillary pore structure to manufacture.

The liquefaction of the latent heat storage material can in a simple way by supplying thermal energy until the desired degree of liquefaction down to a possible complete liquefaction of the latent heat storage material has been achieved. It will then the previously liquefied latent heat storage material in a further process step to the self-priming the, capillary-like receiving spaces of the carrier material introduced because of the capillary suction the open, capillary pore structure of the carrier terials an independently deploying and ongoing Inclusion of the latent heat storage material in the kapil to observe lar-like recording spaces of the carrier material respect, think highly of. A major advantage of the invention The procedure is therefore that of a mechanical action on the carrier material and the latent heat storage material is completely dispensed with for this purpose can. Rather, an intake of the previously liquefied th latent heat storage material in the carrier material achieved even if the previously liquefied latent  pressurized heat storage material to the self-suction the, capillary-like receiving spaces of the carrier material is introduced. In a preferred variant of the The inventive method is the latent heat and put into a container by adding heat to a desired extent liquid, whereupon the carrier material in the previously ver liquid latent heat storage material is immersed. The previously liquefied La tent heat storage material to the self-priming capillary receiving spaces of the carrier material leads so that it by the capillary suction itself is actively included in this. In a further before The further development of the method is temperature of the latent heat storage material during the introduction rens to the self-priming capillary-like receptacle clearing the carrier material through targeted heat controlled supply and / or discharge. For example, there is Possibility of immersing the carrier material into the previously liquefied latent heat storage material through a targeted supply of heat, another liquefier supply or a further reduction in the viscosity of the To achieve latent heat storage material and thus the Begin recording in the capillary-like recording rooms increase. On the other hand, there is also the possibility during immersion by heat dissipation or by cooling the latent heat storage material to achieve the opposite effect, which z. B. after a suitably chosen time duration of the on diving a slowdown or even in need in the event of the end of the recording of further latent heat storage material can be realized. Farther there is a possibility that the latent heat storage material additives are added, the flow hold and / or the Kri achieved on cooling  Influence stable structure. For example can a thickening with the latent heat storage material tel and / or a portion of mineral oils and polymers be added. Additives can also be used Det be like this in DE-OS 43 07 065 and / or are described in PCT / EP 98/01956. Preferably becomes such with the inventive method Mass or amount of latent heat storage material Recording up to the receiving spaces of the carrier material performed between 5 and 50%, preferably 25% and more preferably 40 to 50% of the total mass of the Latent heat body is. For example, for a selected one Latent heat storage material in a certain liquor the specific intake in one Carrier material known per unit time, a ge aimed to influence the recording rooms of the Trä Germaterials absorbed mass of latent heat storage material through a suitable choice of the recording time he done. After this period has elapsed the possibility of recording through a door would remain outside of the carrier material a latent heat storage material from the carrier material, For example, by removing the carrier material an immersion bath of the previously liquefied latent heat chermaterials to finish. In this context further preferred that the latent heat body or the Backing material after removal from an immersion bath first drained and then in one another possible process step except for a ge desired temperature, e.g. to ambient temperature, is cooled. Regarding the previously described dive procedure is also noted that an approach ren of the previously liquefied latent heat storage material than on the carrier material also on other expedient Way can take place, for example. By drizzling the  Backing material with latent heat storage material or by placing an order, if applicable defined, layer thickness of latent heat storage material al on the carrier material. In another process step there is the possibility that the latent heat is provided with an envelope which one or have several of the features described above can.

For the latent heat body according to the invention there are due to the advantageous properties explained above and their variety of uses possible applications. They are, for example, in the form of plat ten, building blocks or granules independently or in a composite construction (walls) used. Further possible uses in construction are storage walls, Roofs or floor storage heaters. As an advantage effect is achieved in that with regard on the heat storage behavior of "light" building materials by soaking or ingesting latent heat me memory material, "heavy" building materials obtained without changing the layer thickness. About that are, as can also be seen from the following Be writing of preferred exemplary embodiments, numerous other uses of the invention Latent heat body conceivable.

In this respect, the invention further relates to a Warmhal teplatte with a plate body and with a trained intake for food, in particular for rice. According to the invention is based on the fact that the plate base body has a latent heat body with in a carrier material having receiving spaces paraffin-based latent heat storage material contains, wherein capillary within the carrier material  Recording rooms for the latent heat storage material forms and the carrier material is a mineral with an open capillary pore structure. There is also the possibility that the latent heat body of the warming plate one or more of the Features explained above. In one preferred th embodiment provides that one or more Food shots one in a waiter surface of the base plate integrated recess exhibit. The advantage of keeping warm according to the invention plate consists of an inexpensive and simple, stable construction and in a highly effective warmth storage effect.

The invention further relates to underfloor heating, in particular an electric floor heating, with a between a bare ceiling and a cover ten heating register, according to the invention a latent heat body is provided with in a recording room send carrier material recorded latent heat storage paraffin-based material, being within the carrier materials capillary recording rooms for latent heat storage material are formed and the carrier material al a mineral with an open capillary Contains pore structure. The latent heat body can represent in addition, one or more of the above Features. In particular, there is the possibility speed that the latent heat body is formed like a plate det and between the bare ceiling and the heating register is arranged. In a preferred embodiment is a thermal insulation on the top of the bare ceiling layer arranged, for example a polystyrene layer can act. More is coming pulls that between the bare ceiling and the heating register a first layer with one made of latent heat partial bodies  formed latent heat body is arranged, the flat if one or more of the related to the According to the invention, the latent heat body explained le can have. In particular, there is the possibility speed that the first layer described above between the plate-shaped latent heat body and the heating regi is arranged. In an expedient development Underfloor heating is between the heating register and the cover a second layer with a latent heat partial bodies formed latent heat body vorese hen, which also has one or more features, such as this in connection with the latent heat according to the invention body are described, may have. In particular is thought that the latent heat partial body first and / or second layer formed like granules are. There is also the possibility that in the Latent heat partial bodies of the first layer are latent heat storage material with a compared to that in the latent heat partial bodies of the second layer contain latent heat memory material different phase transition temperature is recorded. In particular, it is thought that the phase transition temperature of the latent heat storage materials of the first layer is higher than the phase conversion temperature of the latent heat storage material the second layer. The beneficial properties the floor heating according to the invention counts its high Heat storage capacity and the related moderate heat emission to the room above. Furthermore, the underfloor heating meets due to the structural nature of the contained therein Latent heat body increased static requirements.

The invention further relates to a transport container ter with an outer housing and one with one inside Intermediate space accommodated inner housing.  

According to the invention is based on the fact that in the Zwi a latent heat body is arranged with in a carrier material having receiving spaces taken latent heat storage material based on paraffin, being capillary receptacle within the carrier material spaces designed for the latent heat storage material are and the carrier material with a mineral contains an open capillary pore structure. The Latent heat bodies can continue to be one or more re of the features explained above. In appropriate training is in the meantime space-like latent heat body preferably detachable or removably added, in which to the plat vertical plane of the plate-like latent heat bodies At least two latent heat elements are adjacent in the th direction per with different phase transition temperatures of latent heat storage material contained therein than are arranged.

The invention also relates to latent heat body according to the preamble of claim 41. Thereafter it is a latent heat body with a Carrier material and in it in capillary recording rooms absorbed latent heat storage material made of paraffin base, the latent heat body a number of Contains latent heat part bodies and a latent heat part body a substrate part body and therein in capillary recording rooms recorded latent heat contains material. Such a latent heat body is known from WO 98/53264. If provided hen is that a latent heat body a number of Has latent heat partial bodies, encounter the latent heat partial body with its outer surfaces more or less loose to each other, including the inclusion of air volume na can come between the latent heat partial bodies.  

Based on this, the other subject of the Erfin the task is based on a generic latent to continue to heat bodies in a use-advantageous manner the.

This technical problem is first and foremost Lichen by the characteristic features of claim 41 solved, it being assumed that the number the latent heat partial body together from a single bed tion mass is surrounded and that the carrier material is wood fibers and / or cardboard and / or silica granules and / or contains diatomaceous earth. Also for others Invention suitable capillary receiving spaces Materials can be used accordingly, so that the latent heat storage material is good in any case due to the capillary suction effect of the recording rooms in the carrier material is included. Is preferred further that a tempe in the capillary recording rooms Temperature-dependent changes in volume of the latent heat storage material of up to about 10% of the latent heat residual air volume is there. As with the first one Subject of the present application be wrote, the carrier material can also fiber elements te, preferably an even distribution There is also a possibility that the latent heat memory material a thickener and / or Contains mineral oils and polymers.

Likewise, with a latent heat body like that described in connection with claims 1 to 15 ben is the carrier material with the inside in the kapil laren recording rooms recorded latent heat storage material with regard to its outer contours of a one bed mass to be surrounded. The carrier material can  be coherent or in the form of Support material partial bodies are present, with a support partial body with the latent heat contained therein storage material and, if necessary, also in the capillary recording spaces recorded residual air volume na in the sense of the present application a latent forms part of the heat.

As far as reference has been made to an embedding compound it can be, for example, silicone, especially a silicone rubber, resin, concrete, Compare cement, plaster, mortar or other materials actable properties, whereby mixtures or Mixture of several of these substances as embedding mass use can find. Choosing the as Embedding material or materia used lien can preferably be done in such a way that in Ab mood for the selected base material a total for the application of latent heat advantageous overall hardness or overall stiffness of the latent heat body. Likewise, through the Coordination, in particular of carrier material and embedding the total flexibility, the total density, as well as other resulting properties, such as for example thermal conductivity, heat storage capacity act and the like are influenced. The embedding or the surrounding of the carrier material contained therein nem latent heat storage material in the embedding compound is preferably carried out in the form of a mixture, where preferably a cladding or impregnation with the embedding compound, which adds up to leads a network. Within such a ver Overall, there is a cohesion between the carrier material, the latent heat absorbed therein storage material and the embedding mass, the  Carrier material contiguous or in the form of several Backing material body, which together in the composite will hold. By a match the association can be particularly in the individual case coordinated outer shape a latent heat body be formed, alternatively a latent heat body also, as will be explained in more detail, out of a number of such alliances that are common sam are stored in a storage mass and in For the purposes of the invention also referred to as conglomerates will be formed. The one achieved by embedding Compared to known latent heat pills pern especially a technical use Advantage, because from several latent heat partial bodies existing latent heat bodies for shaping and Cohesion to the use of an outer envelope tion, for example a film, can be dispensed with can. Another technical advantage is as mentioned above, also in that the targeted adjustment of the material used to the Carrier material desired resulting properties of the latent heat body can be specifically adjusted. Before it is envisaged that the proportion of embedding se the sum of the masses of latent heat storage mate rial, carrier material and embedding compound at least is about 50%, depending on the application lower mass fractions are possible or are sensible. It is further preferred that the proportion of latent heat storage material, based on the common mass of Latent heat storage material and carrier material, zwi about 40% and about 80%, and preferably about Is 60%. The share of latent heat storage material than about the total weight can preferably be about 15% to 25% be. With regard to the carrier material body or Latent heat partial body is preferably thought of that  this is a granular or a fibrous shape have and that a typical geometric dimension a partial substrate material or a latent heat partial body in the order of individual or less Is millimeters to a few centimeters. Since that Latent heat storage material depending on the amount added share due to the capillary action of the recording rooms predominantly inside the carrier material or the Carrier material body is located in terms of external shape and dimensions in general no essential difference between backing material pern and latent heat partial bodies.

There is also the possibility that the latent heat per one of the previously presented Aus leadership variants contains a number of conglomerates that each made up of a number of partial carrier material bodies, in which latent heat storage material is incorporated and that together surrounded by an embedding compound are, are formed, the conglomerates together are stored in a storage mass or from these are surrounded. The one conglomerate belonging part of the carrier material obtained by embedding or surrounding embedding measures together se a cohesion so that depending on the preferred Number of carrier material parts included pern and the size of the individual carrier material part body conglomerates of different, the respective Use case adaptable size can be formed. Materia is particularly suitable as the storage mass lien, from the group silicone, especially silicon chewing schuk, resin, plaster, cement, concrete are selected, combinations of these materials are also expedient could be. It is preferably thought of as an insert material to choose a different material than for the  Embedding compound. Depending on the individual properties ten of the carrier material selected in the individual case, the Embedding compound and the embedding compound can then be placed in advantageously by coordinating the quantity ratio nisse a desired overall property of the latent heat body can be achieved, being a property in the sem context z. B. the strength, hardness, elasticity , thermal conductivity, heat storage capacity and the like is specifically adjustable. In one preferred th embodiment can be the proportion of the deposit mass of the total mass of the latent heat body be at least about 50%.

In an application example, latent heat part body of one schnitzel each with latent heat cardboard impregnated with memory material a mass fraction of, for example, 40-80%, preferably wise 60% latent heat storage material based on the Total mass of the latent heat partial body. A conglomerate can be a number of such partial substrate material included, which are embedded together in a resin and be covered by the resin, so that a Cohesion between the partial substrate bodies consists. The mass fraction of the latent heat storage material than on the total mass of the conglomerate, for example. be about 30%. The conglomerates described above can turn, for example, concrete to one be added about half the mixing ratio, so that the mass fraction of the latent heat storage material in the latent heat body formed up to preferably is about 15%. Variations on this application game can be that instead of the resin Silicone is provided and / or latent heat partial body made of silica soaked with latent heat storage material degranules are provided. With such execution  has surprisingly been found that the Structural strength of the concrete is not adversely affected is pregnant, but that under certain circumstances even is positively influenced. It is essential that the Base material due to the sizes described above order of the sub-body by the capilla ren recording rooms a pronounced suction effect on the Exercises latent heat storage material. While in the opposite for this purpose, for example, when using powdered carrier material rialien the attached latent heat storage mate always directly from the investment material would surround and lead to loss of strength would, this is through the previously explained recording of the latent heat storage material in the carrier material Partial bodies effectively avoided. A major advantage one made of carrier material, latent heat storage material and embedding compound and, if necessary, additional insert approximately formed latent heat body also exists in that the granules or the fibers of the carrier mat rials also serve as reinforcement and thereby the increase static stability. The importance of embedding tion mass (and possibly the storage mass) first in it, before it is cross-linked or hardened first a certain desired fluidity or easy deformability of the body with the latent heat adjust the batch formed for processing, so that it is rolled out or poured into shape, for example can be. After crosslinking or curing the function, on the other hand, is co-determined by resulting above Overall properties of latent heat body. Overall, the functions of supporting material al, latent heat storage material, embedding compound and Deposit mass separated from each other, so that it as further advantage to no function overruns is coming. Preferred embodiments of the invention  ß latent heat body z. B. in construction, such as for example as wall, floor or ceiling elements, as streets cover, but also as clothing parts, here as Shoe soles, as well as, for example, as elastic thin layer elements or prostheses. Depending on The percentage of latent heat storage can be used Paraffin-based materials also 15% to 25% of the total weight of the latent heat body.

The invention also relates to a method ren for the production of a latent heat body after The preamble of claim 57 becomes the state of the art here also referred to WO 98/53264. So far therein as a further development of the manufacturing process the possibility is described that with latent heat carrier material impregnated into a Number of latent heat partial bodies are separated is further pointed out to the possibility sen that the latent heat partial body of the latent heat pers with a covering enclosing them together, about one the outer contour of the latent heat body vice versa film, can be wrapped. A accordingly Latent heat body manufactured according to WO 98/53264 then has a number of latent heat partial bodies in on the inside, the more or less loose with theirs Surfaces together or on the outer casing bump. Proceeding from this lies the further object the object of the present invention, a Generic method for producing a latent Advantageously to further develop the heat body.

This task is first and foremost Subject of claim 57 solved, being abge is that with latent heat storage material impregnated carrier material with an embedding compound  is surrounded and that a carrier material is used, the wood fibers and / or cardboard and / or silica granules contains lat and / or diatomaceous earth. This method First of all, it proves to be a benefit in use sticky than that a certain surface sealing of the Latent heat body is achieved without this Latent heat body with a covering, for example with a Foil that had to be encased. Another advantage can, based on the geometric shape of the with La tent heat storage material soaked carrier material, when processing the investment material, a deviating desired shape of the latent heat body can be achieved by using the embedding compound accordingly adapted, possibly different materi is processed thick. By the invention Use of a carrier material, the wood fibers and / or cardboard and / or silica granulate and / or Contains diatomaceous earth in the desired manner at the same time a high capillary suction effect of the carrier mat rials on the latent heat storage material and, authoritative Lich also in connection with a preferably high spec fish outer surface of the substrate, a problem-free se and durable attachment of the investment to the latent heat storage material in its recording rooms containing carrier material reached. With the imagination A latent heat body can be used, for example starting from a single carrier material body, d. H. from a coherent carrier material be put. Such a carrier material body can for example, a molded body, which previously contains the carrier material mentioned and its geometric Shape of the shape of the desired latent heat body already in a previous step has been adapted. For example, there is Possibility that such a shaped body by Verkle  ben and / or pressing of wood fibers and / or cardboard and / or silica granules and / or diatomaceous earth will be produced. Alternatively, there is, for example also the possibility that such a molding unmit telbar from a continuous piece of cardboard or Silica or diatomaceous earth is produced. Alterna tiv there is also the possibility that with latent heat Carrier material impregnated before it is surrounded with the embedding compound in latent heat partial body is crushed, with a latent heat part body from a carrier material part body and therein recorded latent heat storage material and given if necessary, the residual air volumes also recorded therein is formed. As a starting material for this shredder can be used with latent heat storage material t carrier material based on the previously described Carrier materials are used. A shredding can, for example, by shredding, chopping or cutting, but not by grinding until to powder form. In another Method step can then be a number of for Latent heat element provided be surrounded together with the investment material. Regarding the geometrical proportions of the Latent heat partial body is essential that this none if crushed to the size of powder grains become, but that when crushing a size order is obtained in which the absorbency of the Backing material is obtained. Regarding the embed tion mass is generally preferred that this while the carrier soaked with latent heat storage material material is surrounded with it in a flowable and / or processed in a kneadable state or is kept in such a state. The processing device can preferably include a mixing process,  the mixing of the latent heat partial body with the Embedding compound, for example, by stirring and / or Kneading is possible. It is further preferred that the Embedding compound after that with latent heat storage material soaked in the material has been surrounded by it is solidified. This can preferably be done by a Drying process take place, for example. With the addition of ther mixer energy. There is also the possibility a specific setting or hardening of the Embedding compound by physical and / or chemical Bring about processes. In a preferred variant of the presented method it is provided that the Latent heat body before solidification of the single bed is poured into a mold so that after the later solidification of the investment a latent heat body corresponding shape is obtained. Alterna tiv or combinative there is the possibility that the Latent heat body before solidification of the bed tion mass is brought about, is rolled out, whereby e.g. B. elastic thin-film elements can be obtained can.

The described method for producing a latent heat body can also be modified in such a way that with a number of sub-body material latent heat storage material contained therein a common giving or embedding of the the latent heat partial body into the embedding compound Conglomerate is formed and that a number of con glomerates together in a storage mass gert is, under conglomerates in the sense of Erfin mergers of the type explained above that will. There is a possibility that as Storage mass basically the already as Embedding proposed materials use  Find. Appropriately, the procedure can be that after processing the investment and a shape desired under certain circumstances Conglomerates initially a solidification of the bed tion mass is brought about and that follow in one the work step is common to a number of conglomerates sam is stored in the storage mass. Here is again preferred that the storage mass in processed in a flowable and / or kneadable form is, initially in the following process steps a shape of the latent heat body and one subsequent solidification of the storage mass can. In a preferred variant of the proposed The procedure is such that embedding se and different materials as storage mass s can be used. Depending on theirs then in general also different physical and chemical properties can take into account the physical and chemical properties of the carrier material and the latent heat storage material than through a targeted coordination of the respective menu latent heat bodies are produced, the a measure of the relevant properties have tailor-made overall behavior. So at a latent heat body by the invention Process z. B. the hardness can be adjusted continuously. For example, to produce a latent heat body made of carrier material, latent heat storage material and embedding compound are used so that relative hard paraffin-soaked diatomaceous beads in rubber soft silicone that crosslinks at room temperature as Embedding compound are incorporated so that a total a flexible overall structure is maintained. As a other extreme you can z. B. paraffinic, soft PAP fibers, d. H. Wood fibers with a high absorbency  for latent heat storage material, in concrete as one Incorporate bed mass, which makes you a total hard concrete storage body. That in the various manufacturing processes described in the variants also proves to be particularly useful for this reason partial, because on the one hand before the solidification of the single bed tion mass or the storage mass due to the good Flow or kneading properties practically any Shaping the latent heat body is possible, others on the one hand, the selected form after solidification of on receive bedding or storage mass remains when the latent heat storage material at one Use of the latent heat body by supplying heat is fluidized. It is in the application of the procedure rens generally preferred that with latent heat substrate soaked completely or is surrounded on all sides by the embedding compound. Accordingly, it is preferred that when using a Storage mass the conglomerates herein completely or be enclosed on all sides. In addition, you can during initial initialization (initial heating) of the latent heat paraffin residues are melted outside and to seal the embedding compound or the Contribute storage mass.

Furthermore, this can also go ahead with reference to the the method described in claims 29 to 39 Production of a latent heat body in the manner of white be educated that with latent heat storage mate rial soaked carrier material with an embedding material is surrounded. In to the previous explanations analogously, this can be done with latent heat storage material-impregnated carrier material to latent heat partial body pern be crushed, using a latent heat part body a carrier material body and in it  taken latent heat storage material and, if applicable, air vo contains lumina. The latent heat partial bodies obtained can then together with an embedding be surrounded. Also based on that here A latent heat body can already be used by embedding with latent heat storage material al soaked carrier material in the embedding compound in Connection with a desired shape and on closing solidification of the investment material be put. However, this method can also go going to be expanded from that, as explained above Latent heat partial bodies and the embedding compound next conglomerates in the sense of this application be put and this in a later procedure step are surrounded by a storage mass, whereby the latent heat body is finally obtained becomes. In this regard, more details on referenced above. An advantage of proposed method using Einbet tion and, if necessary, storage mass is in particular also that latent heat body without any problems Tripod losses and can be produced without emulsifiers.

The invention is further illustrated below using beige added drawings, which, however, are only execution examples represent games, explained. Here shows:

Fig. 1 is a perspective view of a plattenför shaped component with integrated latent heat body;

Fig. 2 is an enlarged detail of the latent heat body according to Figure 1 with a first Trägerma material;

Fig. 3 is an enlarged detail of the latent heat body based on Figure 1 with a two-th carrier material.

Fig. 4 is a perspective view showing the opening of an electric underfloor heating with integrated latent heat bodies;

FIG. 5 shows an enlarged detail of a latent heat body formed from latent heat partial bodies according to FIG. 4;

Fig. 6 is a perspective view of a hot plate for dishes in a first embodiment;

FIG. 7 shows a sectional view of a warming plate for dishes according to FIG. 6;

Fig. 8 is a perspective view of a food warming plate in a second embodiment;

FIG. 9 shows a sectional view of a warming plate according to FIG. 8;

Figure 10 is a horizontal section through a transport container with integrated Latentwärmekör pern.

FIG. 11 is a perspective view of a fiction, modern se latent heat body with Einbettungsmas;

Fig. 12 is an enlarged partial section of the latent heat body of Figure 11 along the section line XII-XII.

FIG. 13 is a partial sectional view of a latent heat body with embedding mass and mass storage;

FIG. 14 is a latent heat body with embedding material in the form of a shoe sole;

Fig. 15 is an enlarged partial section of the latent heat body of FIG. 14 along the section line XV-XV.

Shown and described, initially with reference to FIG. 1, a plate-shaped component 1 , which is formed in wesent union from a latent heat body 2 according to the invention, which also has a plate shape here. Specifically, the latent heat body 2 shown is a gypsum board impregnated with latent heat storage material. On a first surface extending in the plane of the plate, the latent heat body 2 is provided with a cover 3 made of a sheet material 1 in the present case made of paper. The provided with the cover 3 surface of the latent heat mekörpers points in the installed state of the component 1 in the direction of a room, for the delimitation or Ver clothing the component 1 is used. The opposite surface of the latent heat body 2 carries a weather protection 4 , which also covers the entire surface and is also made of a film material. The respective connection between the latent heat body 2 and the cover 3 or the weather protection 4 is in a conventional manner with an adhesive introduced into the respective contact plane, it is sufficient. Alternatively or in combination, there is the possibility to fix the cover 3 and the weather protection 4 to the latent heat body 1 by means of suitable connecting means, such as, for example, clips, rivets or the like, and to produce the cover 3 and / or the weather protection 4 from other suitable materials for example made of metal foil.

Fig. 2 shows an enlarged detail of the latent heat body 2 from Fig. 1. Then the latent heat body 2 consists of a carrier material 5 , which in the example shown consists of a mineral with an open capillary pore structure, in the specific embodiment of a plaster material, and is formed as a coherent structure. Within the carrier material as 5 there are capillary receiving spaces 6 for La tentwärmespeichermaterial 7 , which are formed in the example of FIG. 2 from the open capillary pore structure 8 of the gypsum material or are caused by this. From the greatly simplified and thus only schematic representation, it can be seen that the open capillary pore structure 8 has channels 9 with extensions 10 , which together extend like a labyrinth through the carrier material 5 . Both the channels 9 and the extensions 10 are dimensioned so that they exert a capillary action on liquefied latent heat storage material and insofar capillary recording rooms 6 for the latent heat storage material 7 represent len. It is thereby achieved that previously liquefied latent heat storage material in the manufacture of the latent heat body 2 from the adjacent environment is initially taken up by the suction effect of near-surface receiving spaces 6 and from there progressively tends to get into the interior of the latent heat body 2 by the suction effect of adjacent receiving spaces 6 , whereby in the close to the edge receiving spaces 6 through their connections to the environment flows a desired amount of latent heat storage material 7 . 2 describes Inweit Fig. An equilibrium state in which the latent heat storage material 7 is present uniformly distributed over the capillary holding spaces 6 of time. The distribution of the receiving spaces 6 shown in one plane also describes their qualitative distribution in the other spatial directions. As indicated by the respective area ratios, the mass fraction of the latent heat storage material 7 , based on the total mass of the latent heat body 2 , is approximately 25% in the example described in FIG. 2. In further detail it is shown that the recording rooms 6 are not completely filled with latent heat storage material 7 , but that residual air volumes 11 remain therein, which also have a uniform distribution in the example shown. The Restluftvo lumina 11 are dimensioned such that they accommodate a temperature-dependent change in volume of the latent heat storage material 7 of a maximum of 10% of the latent heat storage material volume in the capillary receiving spaces 6 . In Fig. 1, the channels 9 are only schematically indicated by simple lines.

Based on FIG. 1, FIG. 3 shows a detail enlargement of a latent heat body 2 ', which differs from the latent heat body 2 shown in FIG. 2 only by elements 12 additionally present in the carrier material 5 . In this respect, matching components of the latent heat bodies 2 , 2 'in FIGS. 2 and 3 are labeled with the same reference numerals. The just in case schematic Fig. 3 can be seen that the fiber elements 12 have an elongated and irregular shape and are arranged approximately evenly distributed within the carrier material 5 with an irregular spatial orientation. It is also clear that in FIG. 3 the capillary receiving spaces 6 are not formed exclusively by the open capillary pore structure 8 of the mineral gypsum material, but that the fiber elements 12 are partially part of the edges of the channels 9 and the extensions 10 . There is also the possibility - not shown in the drawing in FIG. 3 - that additional capillary receiving spaces 6 are completely beran det of fiber elements 12 .

Fig. 4 shows a partial perspective view with a partial breaking an electric floor heating 13, which is arranged on a concrete slab 14 of concrete and consisting of a specially übli chen material, for example a top cover 15. From a dry line and, if necessary, also installed floor covering, owns. Between the unfinished ceiling 14 and the cover 15 there are schematically shown heating registers 16 , which in the present case are electrical heating registers in a construction which is customary for this purpose. First, a plattenför shaped latent heat body 17 is arranged between the raw ceiling 14 and the heating register 16 , which corresponds in terms of its components and their structural internal arrangement and distribution with the structure shown in FIG. 2 in an enlarged detail. Deviating from the example shown in FIG. 4, there is also the possibility that an additional heat insulation layer, for example a polystyrene layer, is provided immediately above the raw ceiling 14 . In the arrangement shown in FIG. 4, there is a first layer 18 between the plate-shaped latent heat body 17 and the heating register 16 with a latent heat body 20 formed from granular latent heat partial bodies 19 . In the first layer 18, it is a bed of mutually supporting, granular latent heat sub-bodies 19 , which together form the latent heat body 20 .

As can be seen in further detail from FIG. 5, a single latent heat partial body 19 contains a carrier material partial body 21 and the latent heat storage material 7 'present in the capillary receiving spaces 6 therein and the residual air volume 11 also contained therein. It follows that a latent heat partial body 19 forms a coherent structure with an open capillary pore structure 8 in its interior, while the latent heat body 20 as a whole has no correspondingly coherent structure. Rather, it has 19 spaces 22 in its interior between the latent heat partial bodies, which, depending on the shape and size, can also exert a capillary suction effect on the liquefied latent heat storage material. While this is not shown schematically in FIG. 5, there is therefore the possibility that latent heat storage material 7 is also in the gaps 22 in an equilibrium state and thus additionally contributes to the mutual cohesion of the latent heat partial body 19 . In the embodiment shown in FIGS . 4 and 5 is hen hen, that the body 19 accommodated in the receiving spaces 6 of the latent heat part 19 latent heat storage material 7 has a phase transition temperature of 52 ° C. Furthermore, a second layer 23 is arranged between the heating register 16 and the cover 15 with a latent heat body 25 formed from latent heat partial bodies 24 . The second layer 23 differs from the first layer 18 only in the type of latent heat storage material 7 ″ received in the respective capillary receiving spaces 6 . While, as stated, a latent heat storage material 7 'with a phase transition temperature of 52 ° C is accommodated in the first layer 18 , another latent heat storage material 7 ''with a different, in this case 42 ° C in the present case, is therefore in the second layer 23 lower phase transition temperature added. In principle, there is also the possibility of providing other phase transition temperatures.

Fig. 6 shows a first embodiment in a perspective view of a warming plate 26 for foodstuffs, in particular on rice. The warming plate 26 has a plate body 27 with two receptacles 28 formed thereon for food 29 . It is based on the fact that the plate base body 27 contains a latent heat body 30 according to the invention. In the example shown, the plate base body 27 even consists entirely of the latent heat body 30 , which has a corresponding shape.

As indicated in the associated sectional view in FIG. 7 by the schematic representation of the plate base body 27 , the internal structure of the latent heat body 30 corresponds to the structure shown schematically in FIG. 2. In this respect, the latent heat body 30 also has a carrier material 5 made of a plaster material and capillary receiving spaces 6 contained therein. These are channels 9 and expansion 10 , which together form an open capillary pore structure 8 . Also in connection with the warm holding plate 26, it is proposed that the latent heat body 30 a mass fraction of about 25% latent heat storage material, based on the total mass of the La tentwärmekörpers 30 , and that evenly distributed over the capillary receiving spaces 6 residual air volume 11 temperature-dependent volume changes Absorb latent heat storage material 7 from a maximum of 10% of the latent heat storage material volume. With regard to the structural design, it is proposed that the two receptacles 28 each have an integrated recess 32 in the upper part 31 of the plate base body 27 . The use of such a warming plate 26 can be done in such a way that it is preheated in a furnace, not shown in the drawing, to a temperature above the phase transition temperature of the latent heat storage material 7 , with a uniform heating of the plate base body 27 in the sense of the best possible use of the heat storage capacity is to be aimed for. After completion of the heating process, the warming plate 26 can be removed from the oven and a container, for example - as shown in FIGS. 6 and 7 - a pot 33 , in the interior of which is to be kept warm, not shown food 29 , in the recordings 28 are entered. If or as soon as the pot 33 has a lower outside temperature than the surface of the warming plate 26 , a heat transfer takes place from the warming plate 26 to the pot 33 and from there to the foods 29 contained therein, in the example of FIGS. 6 and 7 in detail not drawn rice. As can be seen particularly clearly from FIG. 7, the dimensions of the recesses 28 are matched to the shape of the pot 33 in such a way that a direct mutual contact arises both on the bottom 34 and on the side walls 35 . A large-area and almost undisturbed heat transfer can thus preferably take place by heat conduction. The insertion of the pot 33 in a Ausneh mung to facilitate 28 of the recesses 28 is provided with respect to the cross-section a circumferential rounding 36 along the upper edge. Since the food medium according to the embodiment of FIGS. 6 and 7 are inside a separate pot 33 and are thus only brought into indirect contact with the warming plate 26 , the warming plate can also be particularly simple from a hygienic point of view. In particular, an outer covering can be dispensed with completely, since there is also no fear of exudation of the latent heat storage material 30 due to the structure of the latent heat body pers 30 according to the invention, at least when the phase transition temperature of the latent heat storage material 7 is exceeded from 30 to 40 ° K.

FIGS. 8 and 9 relate to a second execution form of a hot plate 37 for food products 29, in particular on rice. The warming plate 37 has a plate base body 38 which contains a latent heat body 39 . The latent heat body 39 does not differ in terms of its components and its internal structure from the latent heat body 30 shown in FIGS. 6 and 7. Differences in comparison, however, exist with regard to the outer shape and the fact that the latent heat body 39 is surrounded by a cover 40 which is impermeable to latent heat storage material 7 and which, in the specific example, is formed from a highly thermally conductive metal foil. In detail, the casing 40 has a lower part 41 and an upper part 42 , which are connected to one another in the region of a common circumferential overlap 43 by an adhesive layer 44 . The essential embodiment compared to the first embodiment shown in FIGS. 6 and 7 of a warming plate is thus that the food 29 , or rice, after heating the warming plate 37 in an oven directly into the top 31 inte grated Record 28 is entered so that no additional container is required. The sheath 40 on the one hand causes a separation of the foodstuff 29 from the latent heat body 39 and on the other hand allows easy cleaning of the warming plate 37 without the risk of damage.

Fig. 10 shows a horizontal section of a trans port container 45 with an outer housing 46 and an inner housing 47 received therein spaced apart with a space. The outer housing 46 is additionally lined with thermal insulation 48 , in the present case with a styrofoam layer. It is abge that the latent heat body 49 , 50 are arranged in the remaining space. In the example shown, the latent heat bodies 49 , 50 each have a plate-like shape, the plate plane extending perpendicular to the plane of the drawing. In the specific example, four surface-parallel contacting pairs are formed, each from a latent heat body 49 and a latent heat body 50 , the pairs being offset from one another in the space between the inner housing 47 and the outer housing 46 or the thermal insulation 48 . The latent heat bodies 49 each adjoin the inner housing 47 , while the latent heat bodies 50 each face the outer housing 46 . It is further provided that adjacent end faces Chen 51 , 52 of the latent heat bodies 49 , 50 rest against surface areas 53 of an adjacent latent heat body 49 projecting from the inner housing 47 , so that there are no continuous cavities between the latent heat body pairs. In the exemplary embodiment shown, the latent heat bodies 49 , 50 basically have the same components and the same internal structure as the latent heat body 2 shown in FIG. 2. Differences can only exist with respect to the phase transition temperatures of the respective latent heat storage materials 54 , 55 , so that, depending on the ambient temperature of the outer housing 46 and the desired temperature in the interior 56 of the inner housing 47 , an optimal storage effect can be set by a multi-stage memory. The trans port container 45 also has a bottom, not shown, and, for example, with hinges, different lids, in the bottom and in the lid area, a composite structure of thermal insulation and latent heat bodies is also expediently provided. The transport container 45 shown is used to transport a good 57 accommodated in the interior 56 , which is to keep the temperature as constant as possible during the transport. If the temperature of the goods 57 is to be above the ambient temperature, the latent heat bodies 49 , 50 can be heated in an oven before being transported and then inserted into the space between the outer and the inner housing. If, on the other hand, the transport temperature is to be below the ambient temperature, the latent heat bodies 49 , 50 can be cooled accordingly prior to the transport and then used in the transport container. The transport container 45 shown in FIG. 10 can thus advantageously be used for different purposes, latent heat bodies 49 , 50 being selected in each case, in which latent heat storage material 54 , 55 is added with temperatures specifically adapted to the specific transport conditions of phase change temperatures.

In addition, it is noted that the latent heat bodies described in connection with FIGS. 1 to 10 alternatively or in combination with the features described in the individual case may also have individual or more of the further features, as have been explained in the general part of the description.

In Fig. 11 a perspective view of an inventive latent heat body 58 is shown, in which a plurality of first simplified dargestell th latent heat part-bodies 59 is surrounded by a common potting mass 60th As can be seen in further detail from the enlarged partial section in FIG. 12, each of the latent heat partial bodies 59 has a carrier material partial body 61 , which in the example shown is a granular grain of diatomaceous de. The carrier material part body 61 has an order of magnitude in which there are a large number of capillary receiving spaces 62 in its interior, the number of capillary receiving spaces in practice. Room 07320 00070 552 001000280000000200012000285910720900040 0002019858794 00004 07201e in a partial substrate material can be much higher than what can be expressed in the greatly simplified representation. This applies correspondingly to the size of the individual capillary receiving spaces 62 , which in reality can be far below the size given in FIG. 12. In further detail, it can be seen that latent heat storage material 63 is accommodated within individual capillary receiving spaces 62 , while maintaining residual air volumes 64 . In the exemplary embodiment shown, the capillary receiving spaces 62 form a labyrinth-like structure within the carrier material part 61 , in which the latent heat storage material 63 is received on a paraffin basis. The individual latent heat partial bodies 59 are jointly surrounded by the embedding compound 60 , which in the example shown is concrete. Due to the embedding material 60 there is a permanent cohesion between the carrier material partial bodies, which is retained even when the latent heat storage material is liquefied. The plate shape of the latent heat body 58 expressed in FIG. 11 was achieved in the manufacture in that the mixture formed from the latent heat partial bodies 59 and the embedding material 60 stood in a still flowable overall condition, ie before the concrete set, in a corresponding shape was poured. FIG. 12 also shows that the proportion of the embedding compound 60 in the total mass of the latent heat body 58 is approximately 50%.

In Fig. 13 in a partial section is described with respect to FIGS. 11 and 12 in that modified Latentwärmekör by 65, as in the individual latent heat are partial body 59, first in each case a smaller number of an embedding mass 66, in the example shown of silicon surrounded. Predominantly, con glomerates 67 are formed, each consisting of a plurality of latent heat partial bodies 59 that are surrounded together with the embedding compound 66 . In the example shown, the use of silicone as an embedding compound 66 after it has been crosslinked in the use condition has given a permanent and, within certain limits, resilient or elastic cohesion between the latent heat partial bodies 59 of a conglomerate 67 . It is obvious that, in practice, the number of latent heat partial bodies 59 per conglomerate 67 can vary greatly and in particular can significantly exceed the numbers shown in the simplified illustration. However, it is also possible, as Darge also provides, that individual latent heat part bodies are surrounded by the embedding compound 66 alone. In Fig. 3 it is further shown that the conglomerates 67 are surrounded by a Einlagerungsmas se 68 , which is in the example for example, concrete. Accordingly, cohesion between the conglomerates 67 is produced by the storage mass 68 , so that the latent heat body 56 shown in FIG. 13 cannot differ externally or only insignificantly from the latent heat body 58 shown in FIGS. 11 and 12.

In Fig. 14, a further embodiment of a latent heat body according to the invention in the form of a shoe sole 69th Using the reference characters already used for FIGS. 11 and 12, the latent heat body 69 has an embedding mass 60 , which, however, is silicone in the example described here. A multitude of latent heat partial bodies 59 is surrounded by the embedding mass 60 , the mass fraction of the silicone in the total mass of the latent heat body 69 being approximately 50%. Due to the silicone used as embedding compound 60 , there is permanent cohesion between the latent heat part bodies 59 , the latent heat body 69 having a high degree of flexibility overall and being easy to use and having good properties when in use.

As can be seen in connection with the enlarged partial section of the latent heat body 69 shown in FIG. 15, the latent heat partial bodies 59 contained therein are cardboard chips with latent heat storage material 63 on a paraffin base accommodated therein in capillary receiving spaces 62 . It can also be seen that a residual air volume 64 is also formed in the capillary receiving spaces 62 . The 14-containing ne carrier material part-body in the latent heat part-body 59 shown in FIG., That the paperboard chips, has a plurality of simplified illustrated Fa fibers 70 made of wood or cellulose, which hold a compilation by a conventional in the board making binding medium experienced. In the interior of the carrier material Teilkör pers 61 , in the example of the cardboard cutlet, capillary receiving spaces 62 are also formed between the fibers 70 , in which the latent heat storage material 63 based on paraffin and the residual air volumes 64 are received. Although this is not evident from the illustration, the capillary receiving spaces can preferably be connected to one another. The cardboard cutlets elongated in the example shown can be formed by a previous comminution of cardboard, for example by tearing or cutting, wherein instead of the elongated shape, different geometries, for example round plates of approximately the shape of a smaller coin, can also be used. On the other hand, the partial substrate material can also have a thread-like shape and be somewhat thicker than hair. It is essential that the carrier material is crushed only to such an extent that the capillary receiving spaces 62 are preserved therein, so that a good absorbency of the carrier material with regard to the latent heat storage material than 63 is ensured.

All the features disclosed are essential to the invention. In the disclosure of the application is hereby also the Disclosure content of the associated / attached priori documents (copy of the pre-registration) and the Contents of the documents PCT / EP 98/01956, DE 198 36 048.7, DE-OS 43 07 065 fully included, also to  the purpose, features of these documents in claims including this application.

Claims (64)

1. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) with carrier material ( 5 ) accommodated in a receiving space and containing latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) on a paraffin basis, characterized in that that capillary receiving spaces ( 6 ) for the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) are formed within the carrier material ( 5 ) and that the carrier material ( 5 ) contains a mineral with an open capillary pore structure ( 8 ). 2. Latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to claim 1 or in particular thereafter, characterized in that a mineral material contains a plaster material and / or a clay material and / or sand-lime brick and / or silica is. 3. Latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the carrier material ( 5 ) contains fiber elements ( 12 ). 4. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the fiber elements ( 12 ) are arranged distributed in the carrier material. 5. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the mass fraction of the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ), based on the total mass of the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ), is 5 to 50%, preferably 25% or more preferably 40 to 50%. 6. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that in the capillary receiving spaces ( 6 ) a temperature-dependent volume changes of the La tentwärmespeichermateriales ( 7 , 7 ', 7 '', 54 , 55 ) of a maximum of 10% of the latent heat storage material volume absorbing residual air volume ( 11 ) is present. 7. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the residual air volume ( 11 ) is uniformly distributed over the capillary receiving spaces ( 6 ). 8. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) contains a thickener. 9. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) contains a proportion of mineral oils and polymers. 10. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) has a covering ( 40 ). 11. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the covering ( 40 ) consists of a film material. 12. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the covering ( 40 ) for latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) is impervious. 13. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the carrier material ( 5 ) is designed as a coherent structure. 14. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) contains a number of latent heat partial bodies ( 19 , 24 ), a latent heat partial body ( 19 , 24 ) a carrier material partial body ( 21 ) and the latent heat storage material ( 7 , 7 ', 7 '') present in the capillary receiving spaces ( 6 ) contained therein , 54 , 55 ) and a residual air volume ( 11 ). 15. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular special thereafter, characterized in that the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) is designed like a plate. 16. Warming plate ( 26 , 37 ) with a plate base body ( 27 , 38 ) and with a receptacle ( 28 ) formed thereon for food ( 25 ), in particular for rice, characterized in that the plate base body ( 27 , 38 ) has a latent heat body ( 30 , 39 ) according to one or more of claims 1 to 15 or in particular since after. 17. Warming plate according to claim 16 or in particular according thereto, characterized in that the receptacle ( 28 ) has a recess integrated into a surface ( 31 ) of the plate base body ( 27 , 38 ). 18. Underfloor heating ( 13 ), in particular electric underfloor heating, with a heating register ( 16 ) arranged between a bare ceiling ( 14 ) and a cover ( 15 ), characterized by a latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of claims 1 to 15 or in particular according thereto. 19. Underfloor heating according to claim 18 or in particular according thereto, characterized in that the latent heat body by ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) is plate-like and is arranged between the bare ceiling ( 14 ) and the heating register ( 16 ) . 20. Floor heating according to one or more of claims 18 and 19 or in particular according thereto, characterized in that a heat insulation layer is arranged on the top of the bare ceiling ( 14 ). 21. Underfloor heating ( 13 ) according to one or more of claims 18 to 20 or in particular according thereto, characterized in that between the bare ceiling and the heating register ( 16 ) a first layer ( 18 ) with a latent heat body ( 19 ) formed from latent heat partial bodies ( 19 ) ( 20 ) is arranged according to one or more of claims 1 to 15 or in particular according thereto. 22. Underfloor heating ( 13 ) according to one or more of claims 18 to 21 or in particular according thereto, characterized in that between the heating register ( 16 ) and the cover ( 15 ) a second layer ( 23 ) with a latent heat body ( 24 ) formed from latent heat bodies by ( 25 ) according to one or more of claims 1 to 15 or in particular according thereto. 23. Underfloor heating ( 13 ) according to one or more of claims 18 to 22 or in particular according thereto, characterized in that the latent heat partial body ( 19 , 24 ) of the first ( 18 ) and / or the second ( 23 ) layer are granular. 24. Underfloor heating ( 13 ) according to one or more of claims 18 to 23 or in particular according thereto, characterized in that in the latent heat partial bodies ( 19 ) of the first layer ( 18 ) a latent heat storage material ( 7 ') with one compared to that in the latent heat part body ( 24 ) the second layer ( 23 ) contained latent heat storage material ( 7 '') other phase change temperature is included. 25. Underfloor heating ( 13 ) according to one or more of claims 18 to 24 or in particular according thereto, characterized in that the phase transition temperature of the latent heat storage material ( 71 ) of the first layer ( 18 ) is higher than the phase transition temperature of the latent heat storage material ( 7 '') second layer ( 23 ). 26. Underfloor heating ( 13 ) according to one or more of claims 18 to 25 or in particular according thereto, characterized in that the phase transition temperature of the latent heat storage material ( 7 ') of the first layer ( 18 ) 52 ° C and that the phase transition temperature of the latent heat storage material ( 7 '') of the second layer ( 23 ) is 42 ° C. 27. Transport container ( 45 ) having an outer housing ( 46 ) and an inner housing ( 47 ) accommodated therein spaced apart with an intermediate space, characterized in that in the intermediate space a latent heat body ( 49 , 50 ) according to one or more of Claims 1 to 15 or is arranged in particular thereafter. 28. Transport container ( 45 ) according to claim 27 or in particular special thereafter, characterized in that in the space plate-like latent heat body ( 49 , 50 ) according to one or more of claims 1 to 15 or in particular are included, in which to the plate plane plate-like latent heat body ( 49 , 50 ) perpendicular direction adjacent to at least two latent heat body ( 49 , 50 ) with different phase transition temperatures of the latent heat storage material ( 54 , 55 ) accommodated therein are arranged. 29. Process for producing a latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) with latent heat storage material ( 7 , 7 ', 7 '', 54 '') which is accommodated in a carrier material ( 5 ) which has capillary receiving spaces ( 6 ). 55 ) on a paraffin basis, characterized in that the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) is liquefied, that the previously liquefied latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) self-priming, capillary-like receiving spaces ( 6 ) of the carrier material ( 5 ) is brought up and that a carrier material ( 5 ) is used which contains a mineral with an open, capillary pore structure ( 8 ). 30. The method according to claim 29 or in particular since, characterized in that the mineral fiber elements ( 12 ) are added. 31. The method according to one or more of claims 29 and 30 or in particular thereafter, characterized net that the fiber elements in the mineral evenly be spread out. 32. The method according to one or more of claims 29 and 31 or in particular thereafter, characterized net that as a mineral a gypsum material and / or a clay material and / or sand-lime brick and / or pebble earth is used. 33. The method according to one or more of claims 29 to 33 or in particular according thereto, characterized in that the previously liquefied latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) pressurelessly to the self-sucking capillary-like receiving spaces ( 6 ) of the carrier material is introduced as ( 5 ). 34. The method according to one or more of claims 29 to 33 or in particular according thereto, characterized in that the carrier material ( 5 ) in the previously liquefied latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) is immersed. 35. The method according to one or more of claims 29 to 34 or in particular according thereto, characterized in that the temperature of the latent heat storage material as ( 7 , 7 ', 7 '', 54 , 55 ) during the approach to the self-priming capillary-like receiving spaces ( 6 ) the carrier material ( 5 ) is controlled by targeted heat supply and / or exhaust. 36. The method according to one or more of claims 29 to 35 or in particular according thereto, characterized in that the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) a thickener and / or a proportion of mineral oils and polymers is added . 37. The method according to one or more of claims 29 to 36 or in particular according thereto, characterized in that a mass of the latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) to the receiving spaces ( 6 ) of the carrier material ( 5th ) is introduced, which is between 5 and 50%, preferably 25% or more preferably 40 to 50% of the total mass of the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ). 38. The method according to one or more of claims 29 to 37 or in particular thereafter, characterized net that the carrier material after immersion in the Abge previously liquefied latent heat storage material dripping and / or cooling. 39. The method according to one or more of claims 29 to 38 or in particular according thereto, characterized in that the latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) is provided with a covering ( 40 ). 40. latent heat body ( 1 , 17 , 20 , 30 , 39 , 49 , 50 ) according to one or more of the preceding claims or in particular in particular according thereto, characterized in that the carrier material ( 5 ) with the space in the capillary receptacle ( 6 ) recorded latent heat storage material ( 7 , 7 ', 7 '', 54 , 55 ) is surrounded by an embedding compound. 41. latent heat body with a carrier material and latent heat storage material on a paraffin base accommodated therein in capillary receiving spaces, the latent heat body ( 58 , 65 , 69 ) containing a number of latent heat part bodies ( 59 ) and a latent heat part body ( 59 ) and a carrier material part body ( 61 ) in capillary receiving spaces ( 62 ) contains latent heat storage material ( 63 ), characterized in that the number of latent heat partial bodies ( 59 ) together from an embedding compound ( 60 , 66 ) is ben and that the carrier material is wood fibers and / or cardboard and / or silica granules and / or Diatoeeener de contains. 42. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that in the capillary receptacles ( 62 ) there is a temperature-dependent volume change in the latent heat storage material ( 63 ) of a maximum of 10% of the residual air volume absorbing residual latent heat storage material volume ( 64 ). 43. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the carrier material is fiber selenium elements, preferably in an even distribution holds. 44. latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the latent heat storage material rial ( 63 ) contains a thickener and / or a proportion of mineral oils and polymers. 45. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the embedding compound ( 60 , 66 ) contains silicone, in particular silicone rubber, and / or resin and / or concrete. 46. latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the proportion of the embedding mass ( 60 , 66 ) in the sum of the individual masses of carrier material, latent heat storage material ( 63 ) and embedding compound ( 60 , 66 ) at least is about 50%. 47. latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the proportion of latent heat storage material ( 63 ), based on the common mass of latent heat storage material ( 63 ) and carrier material, is between approximately 40 and approximately 80%, vorzugwei se is about 60%. 48.Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that a carrier material part body by ( 61 ) or a latent heat part body ( 59 ) overall has a granular or fiber-like shape and that a typical geometrical dimension of a carrier material part body ( 61 ) or a latent heat partial body ( 59 ) is in the order of a few millimeters to a few centimeters. 49. latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the latent heat body ( 65 ) contains a number of conglomerates ( 67 ), each of which consists of a number of carrier material partial bodies ( 61 ) in which latent heat storage material ( 63 ) is accommodated and which are surrounded by an embedding compound ( 60 , 66 ), are formed, and in that the conglomerates ( 67 ) are embedded together in an embedding mass ( 68 ). 50. latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the proportion of the storage mass ( 68 ) in the total mass of the latent heat body ( 65 ) is at least about 50%. 51. Latent heat body according to one or more of the preceding claims or in particular according thereto, characterized in that the embedding compound ( 68 ) contains silicone, in particular silicone rubber, and / or resin and / or concrete. 52. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the carrier material impregnated with latent heat storage material ( 63 ) is surrounded with an embedding compound ( 60 , 66 ). 53. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the carrier material impregnated with latent heat storage material ( 63 ) is comminuted to latent heat partial bodies ( 59 ), a latent heat partial body ( 59 ) being a carrier material partial body ( 61 ) and accommodated therein menes latent heat storage material ( 63 ) contains. 54. The method according to one or more of the preceding claims or in particular according thereto, characterized in that a number of latent heat partial bodies ( 59 ) are surrounded together with an embedding compound ( 60 , 66 ). 55. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the latent heat body ( 58 , 65 , 69 ) prior to solidification of the embedding compound ( 60 , 66 ) is rolled out and / or poured into a mold. 56. The method according to one or more of the preceding claims or in particular according thereto, characterized in that from a number of carrier material parts ( 59 ) with latent heat storage material ( 63 ) accommodated therein by the common surrounding or embedding in the embedding compound ( 60 , 66 ) a conglomeration advice ( 67 ) is formed and that a number of conglomeration advice ( 67 ) is stored together in one storage mass ( 68 ). 57. A method for producing a latent heat body with carrier material containing latent heat storage material based on paraffin in a capillary receiving space, the latent heat storage material being liquefied and the previously liquefied latent heat storage material being self-sucking, capillary-like receiving spaces being led by the carrier material, characterized in that the carrier material is characterized, characterized material ( 63 ) impregnated carrier material with an embedding compound ( 60 , 66 ) and that a carrier material is used which contains wood fibers and / or cardboard and / or silica granules and / or diatomaceous earth. 58. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the carrier material soaked with latent heat storage material ( 63 ), before it is surrounded by the embedding mass, is reduced to a latent heat partial body ( 59 ), a latent heat partial body ( 59 ) from a substrate part body ( 61 ) and therein accommodated latent heat storage material ( 63 ) and in particular a residual air volume ( 64 ) is formed, and that a plurality of latent heat part bodies ( 59 ) together forming a cohesion with the embedding compound ( 60 , 66 ) is surrounded. 59. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the embedding compound ( 60 , 66 ), while the carrier material soaked with latent heat storage material ( 63 ) is surrounded with it, in a flowable and / or kneadable Condition is processed. 60. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the embedding compound ( 60 , 66 ) solidifies after the surrounding of the carrier material soaked with latent heat storage material ( 63 ), in particular is dried. 61. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the latent heat body ( 58 , 65 , 69 ) before solidification of the embedding compound ( 60 , 66 ) is rolled out and / or poured into a mold. 62. The method according to one or more of the preceding claims or in particular according thereto, characterized in that from a number of carrier material parts ( 59 ) with latent heat storage material ( 63 ) accommodated therein are surrounded by the common or embedding in the embedding compound ( 60 , 66 ) a conglomeration advice ( 67 ) is formed and that a number of conglomeration advice ( 67 ) is stored together in one storage mass ( 68 ). 63. The method according to one or more of the preceding claims or in particular according thereto, characterized in that concrete and / or silicone, in particular silicone rubber, and / or resin and / or concrete is used as embedding compound ( 60 , 66 ). 64. The method according to one or more of the preceding claims or in particular according thereto, characterized in that concrete and / or silicone, in particular silicone rubber, and / or resin and / or concrete is used as the embedding compound ( 68 ).