DE102017223780A1 - Lid or bottom for container temperature control by thermal compression of hybrid semi-finished products - Google Patents

Abstract

It is a lid or bottom for controlling the temperature of a container, wherein the lid or bottom has a first shell and a second shell, wherein the first shell and the second shell are connected to at least one web portion, wherein the first shell and / or the second Shell are shaped and interconnected, that at least partially between the first shell and the second shell is a tempering, characterized in that the first shell on its second shell side facing at least partially has a first plastic coating and / or the second shell their first shell facing side at least partially has a second plastic coating, a method for tempering a container with a lid or bottom and method for producing a lid or bottom for controlling the temperature of a container proposed.

Description

State of the art

The present invention is based on a container containing a waste heat generating device. These devices may be, for example, electrical machines, power electronics or batteries. To ensure the safe operation of the devices, the interior of the container must be tempered by either the waste heat removed or the interior of the container heat is supplied.

The temperature of such containers is basically known from the prior art. In this case, for example, a tempering spent in the interior of the container, but this can lead to leaks on the container by the supply and / or waste heat pipes to be laid. Another possibility is that either the walls of the container or its lid or bottom are tempered. However, it has been shown that this possibility has disadvantages in terms of space, weight and tightness. A, necessary for housing the temperature control in the walls, in the lid or in the bottom of the container, screwing represents an additional expensive and laborious step in the production of the container.

Disclosure of the invention

It is therefore an object of the present invention to provide a lid or bottom for controlling the temperature of a container, a method for controlling the temperature of a container with the lid or bottom according to the invention and a method for producing the lid or bottom according to the invention, wherein a heat reservoir for heat exchange, which with sealed against leakage and / or entry of gases, liquids and / or solids, a flat and space-saving design and a small number of manufacturing steps is possible.

This object is achieved by a lid or base for tempering a container, wherein the lid or the bottom is designed to at least partially cover the container, wherein the lid or the bottom has a first shell and a second shell, wherein the first shell and the second shell are connected to each other at at least one web portion, wherein the first shell and / or the second shell are formed and interconnected so that at least partially between the first shell and the second shell is a tempering space, wherein the lid or the bottom designed in such a way in that, for at least partially covering the container, the second shell is in contact with the interior of the container, wherein the second shell is at least partially thermally conductive, characterized in that the first shell at least partially has a first plastic coating on its side facing the second shell and / or the second shell on its ders th shell-facing side at least partially having a second plastic coating, solved. The lid according to the invention has an upper part, which is the first shell, and a lower part, which is the second shell, on. Alternatively, the floor according to the invention comprises a lower part, which is the first shell, and an upper part, which is the second shell. The first shell and the second shell are superimposed and shaped to create a volume between the first shell and the second shell which is enclosed by the shells. It is conceivable that the first shell and the second shell touch only at the edges. The volume between the first shell and the second shell would then be completely enclosed by the shells. The points of contact of the shells are the land areas, the enclosed volume is the tempering space. The first shell and the second shell are coated on the sides with which they touch at least partially, but especially at the web areas with plastic. It is conceivable that the first shell is coated with a different plastic than the second shell, but it is also conceivable that the first shell and the second shell are coated with the same plastic. Thermoplastics for industrial applications such as acrylonitrile-butadiene-styrene (ABS), polyamides (PA), polylactate (PLA), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polyurethane (PU), polyphenylsulfide are preferably used as plastics (PPS), polysulfone (PSU), polyethylene (PE), polypropylene (PP), polystyrene (PS), polyetheretherketone (PEEK), polyvinyl chloride (PVC) or any mixtures thereof. However, it is also conceivable to use thermosetting plastics, elastomers or thermoplastic elastomers or high-performance plastics for applications at elevated temperatures such as polyaryls, aromatic polyesters and polyamides such as poly-m-phenyleneisophthalamide (PMI), heterocyclic polymers such as polyimides, polybenzimidazoles and polyetherimide, polyetherimides, Polybenzimidazoles (PBI), aromatic polyamides based on poly-m-phenylene isophthalamide (PMI), polyaramid fibers, liquid crystal polymers (LCP), fluoropolymers, perfluoroalkoxylalkane (PFA) polyphenols, et cetera. The fact that both shells are provided with a plastic coating at the points of contact of the first shell and the second shell, it is possible to connect the two shells there in an advantageous manner with each other. Furthermore, the plastic coatings on the land areas prevent possible contact corrosion between the first shell and the second shell, especially when the two shells are of different metals. The tempering is tempered and facing the interior of the container second shell is temperature-conductive. Thus, the lid or the bottom on the interior of the container side facing and thus the interior of the container can be tempered. Preferably, the plastic coatings are as thin as possible, more preferably, the plastic coating of the second shell is thinner than the plastic coating of the first shell and / or not nationwide, but executed only on the web areas. A non-extensive design allows good heat transfer through the second shell. The plastic coating of the second shell may also have an asymmetrical structure and allows a targeted heat insulation through thicker plastic layers and targeted heat dissipation through thinner plastic layers.

Advantageous embodiments and modifications of the invention are the dependent claims, as well as the description with reference to the drawings.

According to a preferred embodiment of the present invention, it is provided that the first shell has a first sheet and the second shell has a second sheet, wherein the first sheet is made of a first metal and / or the second sheet is made of a second metal. Metals are good heat conductors, generally easy to process and sufficiently robust. Metal-plastic combinations offer over a plastic-plastic variant improved rigidity by the metal in combination with a good sealing effect of the plastic. It is conceivable that the shells are galvanized on the sides, which are not covered with plastic. This increases the heat radiation. Preferably, the sheets are low alloy steel sheets. Thus, a higher heat radiation can be achieved. It is also conceivable that the sheets are higher strength steel sheets. Thus, the sheets can be made thinner, which in turn achieves a higher heat radiation. Furthermore, it is advantageous in terms of heat transfer to design the shell facing the interior of the container by a thinner metal sheet, wherein both the metal sheet and the plastic coating are made as thin as possible. Nevertheless, in order to achieve a sufficient cohesive adhesion between the two shells, the plastic coating of the shell facing away from the interior of the container can be made correspondingly thicker. In order to continue to achieve a sufficient overall rigidity of the lid or the floor, the metal sheet of the interior of the container facing away from the shell can be made correspondingly thicker. It is also conceivable that the sheets are corrosion-resistant steel sheets. This increases the resistance to chemical influences, for example of chemicals in the interior of the container. It is also conceivable that the first sheet and the second sheet of foreign metal, such as steel and aluminum. These can be advantageously connected to the first plastic coating and the second plastic coating, the plastic coatings prevent contact corrosion. In particular, good acoustic damping is provided by the metallic stiffness layer through the polymeric sealing layer.

According to a further preferred embodiment of the present invention, it is provided that the first shell has a bonding agent for adhering the first plastic coating and / or the second shell has a bonding agent for adhering the second plastic coating. The bonding agent advantageously causes a good adhesion of the respective plastic coating to the respective shell. This ensures that the contact point between a metal sheet and the respective plastic coating does not dissolve and so leakages occur.

According to a further preferred embodiment of the present invention, it is provided that the first plastic coating and the second plastic coating in the web areas are integrally connected to one another. The particular flat cohesive connection of the first plastic coating and the second plastic coating in the web area caused in an advantageous manner a high stability of the lid or the bottom and a high density of Temperierraumes.

According to a further preferred embodiment of the present invention, it is provided that the temperature control chamber has at least one temperature control medium connection. A tempering medium connection is, for example, an opening of the tempering space to the outside of the container. By the Temperiermittelanschluss a temperature control can be introduced into the temperature. It is conceivable to equip the temperature control chamber with a temperature control medium connection as input for the temperature control medium and a temperature control medium connection as output for the temperature control medium. Thus, the temperature control would be designed so that a temperature control, such as a cold or hot gas or a cold or warm liquid can be introduced through a Temperiermittelanschluss in the temperature, where it absorbs heat or gives off, and can be discharged through the other Temperiermittelanschluss. Preferably, the Temperiermittelanschlüsse within the plastic coatings, especially preferably between the first plastic coating and the second plastic coating, attached to the land areas. It is conceivable that the Temperiermittelanschlüsse are provided with quick couplings for attaching hose lines. It is also conceivable that the Temperiermittelanschlüsse have closures on the side facing away from the tempering, with which they can be closed when not in use. It is also conceivable to use the Temperiermittelanschlüsse of similar material as the plastic coatings or to design, so that it can be materially connected to the plastic coatings, which can lead to improved stability and / or tightness.

According to a further preferred embodiment of the present invention, it is provided that the temperature control chamber has at least one holder. This holder can hold a tempering device for tempering the tempering space, such as a Peltier element or Wärmeleitbänder. It is conceivable to carry out the holder as a positioning aid for installing a tempering device or as clips. Furthermore, it is conceivable to carry out the holder as a stiffening beam between the first shell and the second shell and thus to ensure increased stability of the lid or the floor.

According to a further preferred embodiment of the present invention, it is provided that the temperature control chamber has at least one flow element. When introducing a temperature control in the temperature control so the flow of the temperature control can be influenced in the temperature. It would be conceivable to design the flow elements as depressions, as grooves or as lamellae.

According to a further preferred embodiment of the present invention it is provided that the cover or the bottom is designed such that it at least partially covers a plurality of containers and tempered the interiors of the plurality of containers. This can advantageously simultaneously closed a matrix of containers and the interior spaces are easily tempered with a single component.

Another object of the present invention for solving the object set out is a method for tempering a container with a lid or a bottom according to one of the preceding claims, wherein in a first step, the lid or the bottom with the second shell in the direction of the interior of the container pointing to the container is set, is tempered in a second step, the temperature control and in a third step, heat between the interior of the container and the temperature control chamber on the second shell is replaced. In the method according to the invention for controlling the temperature of the container, the tempering space of the attached cover or bottom and thus also the second shell are tempered. The lid or bottom is placed on the container so that the second shell is in contact with the interior of the container. If there is a temperature difference between the interior of the container and the second shell of the lid or bottom, heat is exchanged between the interior of the container and the second shell. If, for example, the interior of the container is warmer than the tempering space, then heat is removed from the interior of the container via the second shell into the tempering space and thus the interior of the container is cooled.

According to a preferred embodiment of the present invention, it is provided that the temperature control chamber is tempered by a temperature control medium introduced into the temperature control chamber. It is conceivable that a gas or a liquid is introduced into the tempering space as the temperature control agent. It is also conceivable, however, to introduce ice into the tempering space, to allow it to melt and to pump the melt water out of the tempering space or drain it.

According to a further preferred embodiment of the present invention, it is provided that the temperature control chamber is tempered by a temperature control unit. Conceivable here would be the use of a Peltier element. This could advantageously be regulated in the interior of the container in a control loop with a temperature sensor in the interior of the container, the temperature. It is also conceivable that the tempering, preferably directly the second shell, on thermal conduction, for example, copper, which are heated from outside the lid or bottom, is tempered.

According to a further preferred embodiment of the present invention, it is provided that the lid or bottom is placed on a plurality of containers in the first step and in the third step, heat is exchanged between the inner space of the plurality of containers and the temperature chamber via the second tray. This makes it possible for a matrix of containers to be simultaneously closed and tempered by a component.

A further object of the present invention for solving the object set out is a method for producing a lid or bottom for controlling the temperature of a container, wherein in a first step, a first sheet on a first side of the first sheet, wherein the first side of the first sheet parallel to Main extension plane of the first sheet is at least partially coated with a first plastic and a second sheet on a first side of the second sheet, wherein the first side of the second sheet is parallel to the main extension plane of the second sheet, at least partially coated with a second plastic, in a second step, the first sheet is formed into a first shell and the second sheet is formed into a second shell, such that when the first sheet and the second sheet are stacked, the plastic-coated side of the first sheet is at least partially plastic-coated touched second side of the second sheet, a tempering space between the first sheet and the second sheet is formed, in a third step, the first shell and the second shell are positioned so that the plastic-coated side of the first sheet and the plastic-coated second side of the zw At least partially touching sheet metal, in a fourth step at the locations where the first shell and the second shell touch, the first plastic is materially bonded to the second plastic. In the method according to the invention for producing the lid or bottom, two sheets are at least partially coated on one side with plastic. It is conceivable to galvanize the sheets on the uncoated side. It is also conceivable that the sheets of different metals or metallic alloys, preferably made of steel. The coated sheets are formed, preferably by embossing, deep drawing or punching, so as to contact each other at one or more land portions when they overlap one another with the plastic coated sides and at least one closed volume is created between the sheets. The closed volume (s) are the temperature control rooms; the first coated formed sheet is the first shell, the second coated formed sheet is the second shell. Finally, the first shell and the second shell are positioned on top of each other so that they contact each other at the land areas and are positively connected at the land areas.

According to a preferred embodiment of the present invention, it is provided that at least one holder and / or at least one flow element is attached to the first shell and / or to the second shell between the second step and the third step. This makes it possible to center or fix tempering devices to be introduced into the tempering space or to influence the temperature control means to be introduced into the tempering space in their flow. The holder may also be designed as a strut between the first shell and the second shell. This would give the lid or bottom improved stability.

According to a further preferred embodiment of the present invention, it is provided that, prior to the first step, the areas of the first sheet to be coated with a first plastic are coated with an adhesion promoter and / or the areas of the first sheet to be covered in the first step second sheet to be coated with a primer. The pre-treatment serves to better adhesion of the plastic.

According to another preferred embodiment of the present invention, it is provided that the fourth step is carried out by thermal pressing. The heat can be introduced for example by heating plates, induction heating in the tool or external heating by electromagnetic radiation such as laser radiation or infrared radiation. This can be achieved in a material tightness between the first plastic coating of the first sheet and the second plastic coating of the second sheet produced a high density of the temperature control chamber in an advantageous manner.

Further details, features and advantages of the invention will become apparent from the drawings, as well as from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not limit the essential inventive idea.

list of figures

• 1 shows a schematic sectional view through a lid according to an exemplary embodiment of the present invention.
• 2 shows a schematic sectional view of a portion of a lid according to an exemplary embodiment of the present invention.

Embodiments of the invention

In the various figures, the same parts are always provided with the same reference numerals and are therefore usually named or mentioned only once in each case.

In 1 is a schematic sectional view of an exemplary embodiment of the lid according to the invention 100 shown. The lid 100 closes the container 101 , The lid 100 has two bowls: the first bowl 1 which on the container 101 opposite side of the lid 100 lies, and the second shell 2 which is on the side of the lid 100 which is the container 101 is facing. The second shell 2 is in contact with the interior of the container 101 , The first shell 1 has the first sheet 10 and the first plastic coating 11 on the container 101 facing side of the container 101 on. The first plastic coating 11 adheres with the help of a bonding agent on the first sheet 10 , The second shell 2 has the second plate 20 and the second plastic coating 21 on the container 101 opposite side of the container 101 on. The second plastic coating 21 adheres with the help of a bonding agent on the second sheet 20 , The second shell 2 is shaped by embossing so that the stacked first shell 1 and second shell 2 the temperature control room 3 lock in. The first plastic coating 11 and the second plastic coating 21 are on the edge of the lid 100 encircling the web areas 4 connected to each other cohesively. The temperature control room 3 has a plurality of flow elements 31 and the holder 30 on. The holder 30 is designed as a clip and can heat conduction tapes (not shown for clarity) record. From the outside of the container 101 is a cooling liquid (not shown for clarity) through the tempering 3 of the lid 100 directed. The interior of the container 101 is warmer than the coolant. Heat flows from the interior of the container 101 through the second shell 2 in the temperature control room 3 and heats the coolant. This will be the interior of the container 101 cooled. The cohesive connection of the first plastic coating 10 and the second plastic coating 20 seals the temperature control room 3 from. There can be no coolant from the temperature control room 3 in the interior of the container 101 reach. The lid 100 is flush with its edges on the edges of the container 101 on. The contours of the edges of the lid 100 are designed to match the contours of the edges of the container 101 to adjust. The lid 100 closes the container 101 , Alternatively and not shown, the container could be in 1 also be rotated by 180 °, so that the container would be open at the bottom and could be closed by a bottom.

In 2 is a schematic sectional view of part of an exemplary embodiment of the lid according to the invention 100 shown. The first shell 1 of the lid 100 has a first sheet 10 and a first plastic coating 11 on. The second shell 2 has a second plate 20 and a second plastic coating 21 on. Between the first plastic coating 11 and the second plastic coating 21 is the temperature control medium connection 5 appropriate. The temperature control connection 5 is made of plastic and is on the side of the first shell 1 with the first plastic coating 11 connected cohesively by thermal compression and on the side of the second shell 2 with the second plastic coating 21 connected cohesively by thermal compression. For example, a liquid (not shown) flows through the temperature control medium connection into the temperature control chamber 3 and tempered this.

The connection between the two shells over the plastic coatings is not limited to a (pure) adhesive bond. Rather, the two shells can additionally be non-positively and / or positively connected with each other. A particular selective welding and / or solder joint as an additional cohesive connection is conceivable.

LIST OF REFERENCE NUMBERS

1

first shell

10

first sheet

11

first plastic coating

100

cover

101

container

2

second shell

20

second sheet

21

second plastic coating

3

tempering

30

holder

31

flow element

4

web element

5

Temperiermittelanschluss

Claims (17)

A lid (100) or base for tempering a container (101), wherein the lid (100) or bottom is designed to at least partially cover the container (101), wherein the lid (100) or bottom has a first shell (1) and a bottom second shell (2), wherein the first shell (1) and the second shell (2) on at least one web portion (4) are interconnected, wherein the first shell (1) and / or the second shell (2) so formed and at least partially between the first shell (1) and the second shell (2) is a tempering (3), wherein the lid (100) or bottom is designed such that at least partially covering the container (101 ) the second shell (2) is in contact with the interior of the container (101), the second shell (2) being at least partially thermally conductive, characterized in that the first shell (1) faces the second shell (2) Site at least partially a first Kunststoffüberz ug (11) and / or the second shell (2) has on its side facing the first shell (1) at least partially a second plastic coating (21). Cover (100) or bottom after Claim 1 wherein the first shell (1) has a first (10) sheet metal and the second shell (2) has a second sheet (20), wherein the first sheet (10) is made of a first metal (10) and / or the second sheet (20) is made of a second metal (20). Lid (100) or base according to one of the preceding claims, wherein the first shell (1) has a bonding agent for adhering the first plastic coating (11) and / or the second shell (2) comprises a bonding agent for adhering the second plastic coating (21) , Lid (100) or floor according to one of the preceding claims, wherein the first plastic coating (11) and the second plastic coating (21) in the web areas (4) are integrally connected to one another. Lid (100) or base according to one of the preceding claims, wherein the temperature control chamber (3) has at least one temperature control medium connection (5). Lid (100) or base according to one of the preceding claims, wherein the tempering space (3) has at least one holder (30). Lid (100) or base according to one of the preceding claims, wherein the tempering space (3) has at least one flow element (31). A lid (100) or tray according to any one of the preceding claims, wherein the lid (100) or bottom is configured to at least partially cover a plurality of containers (101) and to temper the interiors of the plurality of containers (101). A method for tempering a container (101) with a lid (100) or bottom according to one of the preceding claims, wherein in a first step, placing the lid (100) or bottom with the second shell (2) pointing in the direction of the interior of the container (101) onto the container (101), - In a second step, the temperature control (3) is heated and - In a third step, heat is exchanged between the interior of the container (101) and the temperature control chamber via the second shell (2). Method according to Claim 9 , wherein the tempering space (3) is tempered by a tempering medium introduced into the tempering space. Method according to Claim 9 , wherein the temperature control chamber (3) is tempered by a temperature control unit. Method according to one of Claims 9 to 11 wherein the lid (100) or bottom is placed in the first step on a plurality of containers (101) and in the third step, heat is exchanged between the interior of the plurality of containers (101) and the tempering space via the second shell (2). Method for producing a cover (100) or base for tempering a container (101), wherein in a first step, a first sheet (10) on a first side of the first sheet (10), wherein the first side of the first sheet (10) is parallel to the main plane of extension of the first sheet (10), at least partially with a first plastic (10) 11) and a second sheet (20) on a first side of the second sheet (20), wherein the first side of the second sheet (20) is parallel to the main plane of extension of the second sheet (20), at least partially with a second plastic (20). 21) is coated, - In a second step, the first sheet (10) to a first shell (1) is formed and the second sheet (20) is formed into a second shell (2), such that when a stacking of the first sheet (10) and the second sheet (20), wherein the plastic-coated side of the first sheet (10) at least partially contacts the plastic-coated second side of the second sheet (20), a tempering space (3) between the first sheet (10) and the second sheet (20 ) is formed, in a third step, the first shell (1) and the second shell (2) are positioned so as to at least partially contact the plastic-coated side of the first metal sheet (10) and the plastic-coated second side of the second metal sheet (20), - In a fourth step at the points where the first shell (1) and the second shell (2) touch, the first plastic (11) with the second plastic (22) is materially connected. Method according to Claim 13 in that between the second step and the third step at least one holder (30) and / or at least one flow element (31) is attached to the first shell (1) and / or to the second shell (2). Method according to one of Claims 13 or 14 , wherein before the first step, in the first step with a first plastic (11) to be covered points of the first sheet (10) with a Adhesive are coated and / or coated in the first step with a second plastic (21) to be coated sites of the second sheet (20) with a bonding agent. Method according to one of Claims 13 or 15 The second step is performed by embossing, deep drawing or punching. Method according to one of Claims 13 or 16 wherein the fourth step is carried out by thermal pressing.

Images