Improved exhaust air management

Abstract

A device which comprises at least one temperature control system for temperature control of an interior space of the device, wherein the at least one temperature control system respectively comprises an external heat exchanger arranged on an outer side of the device, which heat exchanger is designed to exchange heat between the temperature control system and supply air conducted via the external heat exchanger. Furthermore, the device comprises an air guide unit which takes in exhaust air from of the respective external heat exchanger of the at least one temperature control system, and conducts it away from it.

Description

IMPROVED EXHAUST AIR MANAGEMENT

[0001] The present invention relates to the field of exhaust air management, in particular exhaust air management in temperature control systems (e.g. Peltier systems) for controlling the temperature of the interior space of a device.

[0002] Devices with temperature control systems, e.g. laboratory devices, are often installed in a space-optimized manner and sometimes in poorly air- conditioned rooms. This can be detrimental to the exhaust air management of the temperature control systems and limit their performance. For example, laboratory rooms, e.g. in the laboratory and pharmaceutical sectors, are typically limited in terms of available space, and laboratory devices (e.g. incubators, refrigerators, freezers, climate cabinets, ovens) are accordingly installed in a space-optimized manner and often with the minimum permitted distance from the walls. In addition, laboratory air conditioning is not always optimally designed, so that the air-conditioned ambient temperature within a laboratory can be significantly higher than the conventional value of 22°C.

[0003] Some devices, such as climate cabinets, are equipped with Peltier systems for temperature control, i.e. for cooling and heating, of the interior space. These Peltier systems generate exhaust air that is heated or cooled compared to the supply air. For example, waste heat is generated during cooling, which is dissipated via corresponding exhaust air. The maximum cooling or heating performance of the Peltier systems depends in particular on the heat exchange with the environment and thus on the temperature of the supplied ambient air. This also applies in principle to other temperature control systems that rely on heat exchange with supplied ambient air, e.g. compression refrigeration machines. In principle, it is desirable that devices equipped with temperature control systems for cooling and heating that are cooled or heated by means of ambient air can continue to achieve their maximum cooling and heating performance even under critical installationconditions (with minimal wall clearances and threshold ambient temperatures) and / or poor air conditioning of the ambient air.

[0004] However, in known devices, warm air or cold air can accumulate (build up), particularly at the rear of corresponding devices, and / or the exhaust air of a temperature control system can disadvantageously mix with the air supplied to the temperature control system.

[0005] In this regard, for cooled laboratory devices (e.g. freezers or climate cabinets), a spatial separation of the waste heat from the corresponding laboratory device is known, which can be achieved, for example, by means of water cooling. For this purpose, a water cooler is installed outside the laboratory area and connected to the cooled laboratory devices with water hoses so that the waste heat from the equipment is dissipated directly via the water. Although this can advantageously avoid waste heat in the laboratory area, such a solution disadvantageously requires additional installation effort for the laboratory user as well as additional design effort for a water-cooled laboratory device, which is much more complex and requires more material and is therefore also more costly.

[0006] In this light, it is an object of the present invention to overcome or at least mitigate the shortcomings and disadvantages of the prior art. In general, the object of the present invention may be to improve the exhaust air management in devices with temperature control systems and in particular laboratory devices with Peltier systems.

[0007] The object is achieved by the subjects of the independent claims. Advantageous further developments of the invention are described by the dependent claims, the following description and the figures shown.

[0008] In a first aspect, the present invention relates to a device which comprises at least one temperature control system for temperature control ofan interior space of the device, wherein the at least one temperature control system respectively comprises an external heat exchanger arranged on an outer side of the device, which heat exchanger is designed to exchange heat between the temperature control system and supply air conducted via the external heat exchanger. Furthermore, the device comprises an air guide unit which takes in exhaust air from the respective external heat exchanger of the at least one temperature control system and conducts it away from it.

[0009] In other words, the present invention relates to a device which is designed for controlling the temperature of an interior space and comprises at least one corresponding temperature control system. The temperature control system is designed to exchange heat with supplied supply air via an external heat exchanger arranged on an outer side of the device. In addition, the device comprises in particular an air guide unit which receives exhaust air from the external heat exchanger, i.e. the supply air which is conducted via the external heat exchanger and is heated or cooled, and conducts it away from the temperature control system. It is understood that the term “conducts it away” also includes passive conduction, i.e. the air guide unit does not necessarily actively conduct the exhaust air away. For example, the air guide unit can also conduct the exhaust air away passively by utilizing thermal convection and can be designed as a channel, for example.

[0010] In embodiments of the invention, it can be provided that the air guide unit spatially separates the exhaust air from the supply air in the region of the at least one temperature control system. This advantageously makes it possible to prevent the exhaust air from mixing with the supply air.

[0011] In embodiments of the invention, it can be provided that the air guide unit is arranged at least partially on the same outer side of the device on which the external heat exchanger of the at least one temperature control system is arranged. This may allow the external heat exchanger to be incorporated into the air guide unit.

[0012] In embodiments of the invention, it can be provided that the air guide unit comprises at least one supply opening for supplying the supply air. The supply opening can therefore allow the active and / or passive supply of supply air.

[0013] In embodiments of the invention, it can be provided that the air guide unit respectively accommodates the external heat exchanger of the at least one temperature control system. This advantageously makes it possible for the exhaust air to be collected in the air guide unit and conducted away by means of the same.

[0014] In embodiments of the invention, it can be provided that the external heat exchanger of the at least one temperature control system is arranged on a rear side of the device, and the air guide unit is arranged at least partially on the rear side of the device. This advantageously makes it possible for the air guide unit to receive the exhaust air from at least one temperature control system.

[0015] In embodiments of the invention, it can be provided that the air guide unit comprises at least one outlet opening through which the exhaust air is discharged to an environment of the device. In other words, the air guide unit can discharge the exhaust air received from the at least one temperature control system (in particular each of the external heat exchangers) to the environment of the device via at least one outlet opening. In embodiments of the invention in which the air guide unit additionally comprises at least one supply opening, it can be provided that the at least one supply opening and the at least one outlet opening are arranged on different sides of the device. This makes it possible to advantageously reduce mixing between supply air and exhaust air, since exhaust air and supply air are spatially separated. Additionally or alternatively, in corresponding embodiments, the at least onesupply opening and the at least one outlet opening can be oriented in opposite directions.

[0016] In embodiments of the invention, it can be provided that the air guide unit is arranged at least partially on an upper side of the device. Additionally or alternatively, the air guide unit can be arranged at least partially on an underside of the device. Furthermore, additionally or alternatively, the air guide unit can be arranged at least partially on a lateral surface of the device. In other words, the air guide unit can be arranged at least partially on the upper side, the underside and / or at least one of the two lateral surfaces of the device. This can advantageously make it possible to conduct the exhaust air away from the rear side of the device and thus spatially separate supply opening(s) and outlet opening(s) in order to reduce or preferably minimize mixing of supply air and exhaust air.

[0017] In embodiments of the invention, it can be provided that the air guide unit comprises at least one air guide element. In other words, the air guide unit can comprise one or a plurality of air guide elements; in particular, the air guide unit can also consist of one air guide element.

[0018] In embodiments of the invention, it can be provided that the device comprises a plurality of temperature control systems, and the air guide unit comprises a plurality of air guide elements, wherein each air guide element receives the exhaust air of at least one heat exchanger of the plurality of temperature control systems. The plurality of air guide elements can be fluidically separate from each other.

[0019] In embodiments of the invention, it can be provided that each air guide element comprises at least one supply opening for supplying the supply air. Additionally or alternatively, it can be provided that each air guide element comprises at least one outlet opening through which the exhaust air is discharged into an environment of the device.

[0020] In embodiments of the invention, it can be provided that each air guide element is arranged at least partially on the rear side of the device.

[0021] In embodiments of the invention, it can be provided that at least one of the at least one air guide elements comprises a plurality of interconnected air guide element portions. In other words, at least one of the at least one air guide elements can be composed of a plurality of air guide element portions which are flu id ically interconnected. For example, a first portion may be arranged on the rear side of the device while a second portion is arranged on another outer surface of the device. In particular, it can be provided that the plurality of interconnected air guide element portions are arranged on at least two different outer sides of the device.

[0022] In embodiments of the invention, it can be provided that, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on an upper side of the device. Additionally or alternatively, it can be provided that, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on an underside of the device. Additionally or alternatively, it can be provided that, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on a lateral surface of the device.

[0023] Furthermore, it can be provided that the first air guide element portion has the at least one supply opening. Additionally or alternatively, it can be provided that the first air guide element portion is designed to receive the exhaust air from the external heat exchanger of the at least one temperature control system and to conduct it into the second air guide element portion. Preferably, the second air guide element portion can have the at least one outlet opening.

[0024] In embodiments of the invention, it can be provided that at least one boundary of at least one portion of the air guide unit is provided by an outer wall portion of the device.

[0025] In embodiments of the invention, it can be provided that the at least one air guide element is a channel.

[0026] In embodiments of the invention, it can be provided that the air guide unit consists of metal, preferably of galvanized sheet steel.

[0027] In embodiments of the invention, it can be provided that the air guide unit comprises at least one air-directing element that is designed to influence and preferably improve the air flow within the air guide element. Corresponding air-directing elements can, for example, be baffles which are arranged within the air guide element in order to manipulate and preferably improve, e.g. optimize, the flow path(s) within the air guide element.

[0028] In embodiments of the invention, it can be provided that the air guide unit comprises at least one supply fan which is designed to provide supply air for the at least one temperature control system. The supply fan can be arranged separately from the temperature control system and, for example, provide supply air for a plurality of temperature control systems. In particular, in such embodiments, corresponding air-directing elements can be provided to conduct the supply air to the various temperature control systems.

[0029] In embodiments of the invention, it can be provided that the air guide unit comprises at least one exhaust air fan which is designed to discharge the exhaust air from the at least one temperature control system. The at least one exhaust air fan can preferably allow active discharge and / or conduction away of the exhaust air and, if necessary, also take over the provision of supply air by means of a corresponding suction. For example, an exhaust air fan can beprovided which discharges the exhaust air from a plurality of temperature control systems - or an exhaust air fan for each of the at least one temperature control systems. Preferably, at least one exhaust air fan can be provided per outlet opening.

[0030] In embodiments of the invention, it can be provided that the at least one temperature control system further comprises an internal heat exchanger which is arranged in an interior space of the device and is designed to exchange heat between the at least one temperature control system and supply air conducted via the internal heat exchanger. The exhaust air from the internal heat exchanger can preferably be conducted into the interior space of the device. The internal heat exchanger therefore advantageously allows heat to be exchanged between the air contained in the interior space of the device and the internal heat exchanger, thus cooling or heating the interior space.

[0031] Furthermore, it can be provided that the internal heat exchanger and the external heat exchanger are thermally separate from each other. This allows the two heat exchangers to have different temperatures.

[0032] In embodiments of the invention, it can be provided that the at least one temperature control system further comprises at least one fan which is designed for supplying supply air to the internal heat exchanger. Additionally or alternatively, it can be provided that the at least one temperature control system comprises at least one fan which is designed for supplying supply air to the external heat exchanger. For example, the fan can be permanently attached to the external heat exchanger and protrude through the supply opening of the air guide element to suck in supply air and blow it onto the external heat exchanger. The fan designed for supplying supply air to the external heat exchanger may be mounted so that supply air is provided to the external heat exchanger through the supply opening. It should be understood that supply air can be supplied to a heat exchanger by the fan blowing it into the heat exchanger or else by the fan sucking it into the heat exchanger.

[0033] In embodiments of the invention, it can be provided that the external heat exchanger and / or the internal heat exchanger is a heat sink.

[0034] In embodiments of the invention, it can be provided that the at least one temperature control system comprises a plurality of external heat exchangers and / or internal heat exchangers.

[0035] In embodiments of the invention, it can be provided that the at least one temperature control system is a Peltier system, wherein the at least one Peltier system comprises at least one Peltier element and wherein the external heat exchanger is designed to exchange heat between the at least one Peltier element and supply air conducted via the external heat exchanger. Furthermore, it can be provided that the at least one Peltier element is designed to provide a temperature difference between a first outer portion and a second outer portion of the Peltier element when an electric current flows through it. The temperature difference can be at least 20°C, preferably at least 35°C, more preferably at least 30°C.

[0036] In embodiments in which the temperature control system is a Peltier system, it can be provided that the internal heat exchanger is thermally connected to the first outer portion of the at least one Peltier element, and the external heat exchanger is thermally connected to the second outer portion of the at least one Peltier element.

[0037] In embodiments in which the temperature control system is a Peltier system, it can be provided that the internal heat exchanger is designed to exchange heat between the at least one Peltier element and supply air conducted via the internal heat exchanger.

[0038] In embodiments of the invention, it can be provided that the device is designed to control and / or regulate the temperature in the interior space. Inother words, the device can be designed to regulate the temperature in the interior space, for example taking into account a temperature setpoint for the interior space.

[0039] In embodiments of the invention, it can be provided that the device comprises a control device which is designed to control and / or regulate the at least one temperature control system. Furthermore, it can be provided that the control device is designed to control and / or regulate each of the at least one temperature control systems individually.

[0040] In embodiments of the invention, it can be provided that the device is a laboratory device. Additionally or alternatively, the device may be a temperature control cabinet. That is, a device with a temperature-controlled interior space.

[0041] In embodiments of the invention, it can be provided that the device is a climate chamber. In embodiments of the invention, it can be provided that the device is an incubator, for example a CO2 incubator and / or a refrigerated incubator. In particular, in embodiments of the invention, it can be provided that the device is at least one of a heating cabinet, incubator, oven, freezer and / or climate chamber, preferably a refrigerated incubator, freezer and / or climate chamber.

[0042] In a further aspect, the present invention relates to a method for exhaust air management of a device. The method comprises temperature controlling an interior space of the device by means of at least one temperature control system, wherein the temperature control system comprises an external heat exchanger arranged on an outer side of the device; supplying supply air to the external heat exchanger; conducting the supply air via the heat exchanger; exchanging heat between the supply air and the heat exchanger and thereby generating exhaust air which has a different temperature than the supply air; and spatially separating the exhaust air from the supply air in the region of thetemperature control system. It goes without saying that the supplying and conducting of the supply air are not necessarily active method steps, but can also be provided passively, e.g. by means of thermal convection and corresponding air-directing elements.

[0043] The device can in particular be the device described above.

[0044] In embodiments of the invention, the method may further comprise conducting the exhaust air to an upper side and / or towards a front side of the device. Conduction towards the front side of the device can, for example, occur along the upper side, the underside and / or at least one lateral surface. As already mentioned, conduction can also be done passively.

[0045] In embodiments of the invention, it can be provided that controlling the temperature of the interior space of the device comprises cooling the interior space.

[0046] In embodiments of the invention, the supply air can be supplied actively, preferably by means of at least one fan. The supply can be achieved both by sucking in the supply air and by blowing the supply air in. For example, a fan provided at an outlet opening can also supply the supply air by means of appropriate suction.

[0047] Reference is made below to device embodiments. These embodiments are indicated with an L followed by a number. When reference is made below to device embodiments I L-embodiments, these embodiments are meant.

[0048] L1 . Device comprising at least one temperature control system for temperature control of an interior space of the device, wherein the at least one temperature control system respectively comprises an external heat exchanger arranged on an outer side of the device, which heat exchanger is designed to exchange heat betweenthe temperature control system and supply air conducted via the external heat exchanger, an air guide unit which takes in exhaust air from the respective external heat exchanger of the at least one temperature control system and conducts it away from it.

[0049] L2. Device according to the preceding device embodiment, wherein the air guide unit spatially separates the exhaust air from the supply air in the region of the at least one temperature control system.

[0050] L3. Device according to any of the preceding device embodiments, wherein the air guide unit is arranged at least partially on the same outer side of the device on which the external heat exchanger of the at least one temperature control system is arranged.

[0051] L4. Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one supply opening for supplying the supply air.

[0052] L5. Device according to any of the preceding device embodiments, wherein the air guide unit respectively accommodates the external heat exchanger of the at least one temperature control system.

[0053] L6. Device according to any of the preceding device embodiments, wherein the external heat exchanger of the at least one temperature control system is arranged on a rear side of the device, and the air guide unit is arranged at least partially on the rear side of the device.

[0054] L7. Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one outlet opening through which the exhaust air is discharged to an environment of the device.

[0055] L8. Device according to the preceding device embodiment and having the features of L4, wherein the at least one supply opening and the at least one outlet opening are arranged on different sides of the device.

[0056] L9. Device according to any of the two preceding device embodiments and having the features of L4, wherein the at least one supply opening and the at least one outlet opening are oriented in opposite directions.

[0057] L10. Device according to any of the preceding device embodiments, wherein the air guide unit is arranged at least partially on an upper side of the device.

[0058] L11. Device according to any of the preceding device embodiments, wherein the air guide unit is arranged at least partially on an underside of the device.

[0059] L12. Device according to any of the preceding device embodiments, wherein the air guide unit is arranged at least partially on a lateral surface of the device.

[0060] L13. Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one air guide element.

[0061] L14. Device according to the preceding device embodiment, wherein the device comprises a plurality of temperature control systems, and the air guide unit comprises a plurality of air guide elements, wherein each air guide element receives the exhaust air of at least one heat exchanger of the plurality of temperature control systems.

[0062] L15. Device according to the preceding device embodiment, wherein the plurality of air guide elements are flu idical ly separate from one another.

[0063] L16. Device according to the three preceding device embodiments, wherein each air guide element comprises at least one supply opening for supplying the supply air.

[0064] L17. Device according to any of the four preceding device embodiments, wherein each air guide element comprises at least one outlet opening through which the exhaust air is discharged to an environment of the device.

[0065] L18. Device according to any of the five preceding device embodiments and having the features of embodiment L6, wherein each air guide element is arranged at least partially on the rear side of the device.

[0066] L19. Device according to any of the six preceding device embodiments, wherein at least one of the at least one air guide elements comprises a plurality of interconnected air guide element portions.

[0067] L20. Device according to the preceding device embodiment, wherein the plurality of interconnected air guide element portions are arranged on at least two different outer sides of the device.

[0068] L21. Device according to the preceding device embodiment, wherein, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on an upper side of the device.

[0069] L22. Device according to any of the two preceding device embodiments, wherein, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on an underside of the device.

[0070] L23. Device according to any of the three preceding device embodiments, wherein, in at least one air guide element, a first air guide element portion is arranged on the rear side of the device, and a second air guide element portion is arranged on a lateral surface of the device.

[0071] L24. Device according to any of the five preceding device embodiments and having the features of L4, wherein the first air guide element portion has the at least one supply opening.

[0072] L25. Device according to any of the six preceding device embodiments, wherein the first air guide element portion is designed to receive the exhaust air from the external heat exchanger of the at least one temperature control system and to conduct it into the second air guide element portion.

[0073] L26. Device according to the preceding device embodiment and having the features of embodiment L7, wherein the second air guide element portion has the at least one outlet opening.

[0074] L27. Device according to any of the preceding device embodiments, wherein at least one boundary of at least one portion of the air guide unit is provided by an outer wall portion of the device.

[0075] L28. Device according to any of the preceding device embodiments, wherein the at least one air guide element is a channel.

[0076] L29. Device according to any of the preceding device embodiments, wherein the air guide unit consists of metal, preferably of galvanized sheet steel.

[0077] L30. Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one air-directing element whichis designed to influence and preferably improve the air flow within the air guide element.

[0078] L31 . Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one supply fan which is designed to provide supply air for the at least one temperature control system.

[0079] L32. Device according to any of the preceding device embodiments, wherein the air guide unit comprises at least one exhaust air fan which is designed to discharge the exhaust air from the at least one temperature control system.

[0080] L33. Device according to any of the preceding device embodiments, wherein the at least one temperature control system further comprises an internal heat exchanger which is arranged in an interior space of the device and is designed to exchange heat between the at least one temperature control system and supply air conducted via the internal heat exchanger.

[0081] L34. Device according to the preceding device embodiment, wherein exhaust air from the internal heat exchanger is conducted into the interior space of the device.

[0082] L35. Device according to any of the two preceding device embodiments, wherein the internal heat exchanger and the external heat exchanger are thermally separate from each other.

[0083] L36. Device according to any of the three preceding device embodiments, wherein the at least one temperature control system further comprises at least one fan which is designed for supplying supply air to the internal heat exchanger.

[0084] L37. Device according to any of the preceding device embodiments, wherein the at least one temperature control system further comprises at least one fan which is designed for supplying supply air to the external heat exchanger.

[0085] For example, the fan can be permanently attached to the external heat exchanger and protrude through the supply opening of the air guide element to suck in supply air and blow it onto the external heat exchanger.

[0086] L37a. Device according to the preceding device embodiment and having the features of embodiments L4 or L16, wherein the fan is mounted so that supply air is provided to the external heat exchanger through the supply opening.

[0087] It should be understood that supply air can be supplied to a heat exchanger by the fan blowing it into the heat exchanger or else by the fan sucking it into the heat exchanger.

[0088] L38. Device according to any of the preceding device embodiments, wherein the external heat exchanger and / or the internal heat exchanger is a heat sink.

[0089] L39. Device according to any of the preceding device embodiments, wherein the at least one temperature control system comprises a plurality of external heat exchangers and / or internal heat exchangers.

[0090] L40. Device according to any of the preceding device embodiments, wherein the at least one temperature control system is a Peltier system, wherein the at least one Peltier system comprises at least one Peltier element, and wherein the external heat exchanger is designed to exchange heat between the at least one Peltier element and supply air conducted via the external heat exchanger.

[0091] L41 . Device according to the preceding device embodiment, wherein the at least one Peltier element is designed to provide a temperature difference between a first outer portion and a second outer portion of the Peltier element when an electrical current flows through it.

[0092] L42. Device according to the preceding device embodiment, wherein the temperature difference is at least 20°C, preferably at least 25°C, more preferably at least 30°C.

[0093] L43. Device according to any of the two preceding device embodiments, wherein the internal heat exchanger is thermally connected to the first outer portion of the at least one Peltier element, and the external heat exchanger is thermally connected to the second outer portion of the at least one Peltier element.

[0094] L44. Device according to any of the four preceding device embodiments and having the features of L23, wherein the internal heat exchanger is designed to exchange heat between the at least one Peltier element and supply air conducted via the internal heat exchanger.

[0095] L45. Device according to any of the preceding device embodiments, wherein the device is designed to control and / or regulate the temperature in the interior space.

[0096] L46. Device according to any of the preceding device embodiments, wherein the device comprises a control device which is designed to control and / or regulate the at least one temperature control system.

[0097] L47. Device according to the preceding device embodiment, wherein the control device is designed to individually control and / or regulate each of the at least one temperature control systems.

[0098] L48. Device according to any of the preceding device embodiments, wherein the device is a laboratory device.

[0099] L49. Device according to the preceding device embodiment, wherein the device is a temperature control cabinet.

[0100] L50. Device according to any of the preceding device embodiments, wherein the device is a climate chamber.

[0101] L51 . Device according to any of the preceding device embodiments, wherein the device is an incubator, for example a CO2 incubator and / or a refrigerated incubator.

[0102] L52. Device according to any of the preceding device embodiments, wherein the device is at least one of a heating cabinet, incubator, oven, freezer and / or climate chamber, preferably a freezer and / or climate chamber.

[0103] Reference is made below to method embodiments. These embodiments are indicated with an M followed by a number. Whenever the term “method embodiments” or “M embodiments” is used below, these embodiments are meant.

[0104] M1 . Method for exhaust air management of a device, comprising temperature controlling an interior space of the device by means of at least one temperature control system, wherein the temperature control system comprises an external heat exchanger arranged on an outer side of the device, supplying supply air to the external heat exchanger, conducting the supply air via the heat exchanger,exchanging heat between the supply air and the heat exchanger and thereby generating exhaust air that has a different temperature than the supply air, and spatially separating the exhaust air from the supply air in the region of the temperature control system.

[0105] M2. Method according to the preceding method embodiment, wherein the device is a device according to any of the preceding device embodiments.

[0106] M3. Method according to any of the preceding method embodiments, the method further comprising conducting the exhaust air to an upper side and / or towards a front side of the device.

[0107] M4. Method according to any of the preceding method embodiments, wherein controlling the temperature of the interior space of the device comprises cooling the interior space.

[0108] M5. Method according to any of the preceding method embodiments, wherein the supply air is supplied actively, preferably by means of at least one fan.

[0109] Embodiments of the present invention are now described with reference to the accompanying drawings. These embodiments are intended to be exemplary and not limitative of the present invention.

[0110] Fig. 1 illustrates an exemplary embodiment of a Peltier element;

[0111] Fig. 2 illustrates an exemplary embodiment of a Peltier system;

[0112] Fig. 3 illustrates an exemplary embodiment of a laboratory device with Peltier systems;

[0113] Fig. 4a and 4b illustrate an exemplary embodiment of the present invention with spatial separation of the exhaust air of the Peltier systems from the supply air;

[0114] Fig. 5 illustrates the arrangement of a fan for supplying supply air a) outside and b) inside an air guide unit or an air guide element;

[0115] Fig. 6 illustrates an exemplary air guide unit in the form of an air guide element;

[0116] Fig. 7 illustrates a) a rear view and b) a side view to illustrate embodiments of the invention.

[0117] It is noted that not all drawings bear all reference signs. Instead, in some of the drawings, some of the reference signs have been omitted for brevity and ease of presentation. Embodiments of the present invention are now described with reference to the accompanying drawings.

[0118] The present invention is described below with particular reference to laboratory devices with Peltier systems for cooling or heating. It should be understood, however, that this is purely exemplary and the invention is directed more generally to devices with temperature control systems. This means that the present invention is not limited to laboratory devices only, but can also include, for example, incubators, refrigerators and freezers that are not used in laboratories but in households and / or various industries. In addition to Peltier systems, temperature control systems can also include air-cooled compression refrigeration machines.

[0119] In general, the devices according to the invention comprise at least one temperature control system which is designed to control the temperature of an interior space of the device. Accordingly, these devices can also be called temperature control cabinets.

[0120] Figure 1 illustrates an exemplary embodiment of a Peltier element 1 , which can be used for heating and / or cooling. Basically, a Peltier element 1 is an electrothermal converter based on the Peltier effect. The Peltier element 1 allows a temperature difference to be generated between two outer portions 12, 14 of the Peltier element 1 when current flows through it. In other words, the Peltier element 1 is designed such that, when current flows through it, a first outer portion 12 is cooled and the other (preferably opposite) second outer portion 14 is heated (or vice versa), so that a temperature difference is provided between the two outer portions. Which of the outer portions is cooled and which is heated depends on the direction of flow of the electrical current. The two outer portions are typically opposite each other. For the power supply, the Peltier element 1 typically has corresponding connections 16, e.g. conductors 16.

[0121] Fig. 2 illustrates an example of a Peltier system 100 as a possible embodiment of a temperature control system. The Peltier system 100 comprises at least one Peltier element 1 (not shown) which is thermally connected to two heat exchangers 102, 104, e.g. heat sinks 110, 120. In particular, each heat exchanger 110, 120 is thermally connected to an outer portion 12, 14 of the at least one Peltier element 1 . This allows the respective heat exchangers 110, 120 to exchange heat between the thermally connected outer portion 12, 14 and a supplied fluid, e.g. ambient air.

[0122] For example, when the outer portion 12 of the Peltier element 1 is cooled, the heat exchanger 110 connected thereto can cool a fluid supplied to the heat exchanger 110 or conduct heat of the supplied fluid to the outer portion 12 of the Peltier element 1 . At the same time, a heat exchanger 120 thermally connected to the correspondingly heated outer portion 14 of the Peltier element 1 can transfer the heat of the Peltier element to a fluid supplied to the heat exchanger 120, e.g. the ambient air.

[0123] The Peltier system 100 may further comprise at least one fan 112, 122 for at least one associated heat exchanger 110, 120. The at least one fan can preferably supply a fluid, e.g. ambient air, to the respective heat exchangers 110, 120. In other words, depending on the embodiment, the Peltier system 100 may comprise at least one fan 112, 122 for at least one of the heat exchangers 110, 120. In some embodiments, the Peltier system 100 may include at least one fan 112, 122 for each heat exchanger 110, 120.

[0124] The heat exchangers 110, 120 are thermally insulated from each other (apart from the thermal connection, which in principle exists via at least one Peltier element).

[0125] In principle, the Peltier element can also be used to heat a laboratory device by reversing the current direction. However, the present invention is described below in particular with regard to the cooling of laboratory devices, since the heating of a laboratory device can also be carried out, for example, by means of a simple electrical resistance heater.

[0126] The Peltier system 100 can thus, for example, cool the air inside a laboratory device. For this purpose, the at least one Peltier element 1 of the Peltier system 100 is supplied with power, and the respective ambient air is supplied to the two heat exchangers 110, 120, for example by means of the fans 112, 122. The Peltier system 100 is arranged such that one heat exchanger 110 is arranged in an interior space of the laboratory device, and the other heat exchanger 120 is arranged outside the laboratory device. Accordingly, reference is also made below to an internal heat exchanger 110 and an external heat exchanger 120. This allows heat to be removed from the interior space of the laboratory device and heat to be supplied to the environment around the laboratory device (or vice versa).

[0127] To cool the laboratory device, the direction of the current flow through the at least one Peltier element 1 of the at least one Peltier system 100 isselected such that the internal heat exchanger 110 is thermally connected to the cooled outer portion 12 of the at least one Peltier element 1 , and the external heat exchanger 120 is thermally connected to the heated outer portion 14 of the at least one Peltier element 1 (cf. Fig. 3).

[0128] As a result, the internal supply air 114 from the laboratory device, which is supplied to the internal heat exchanger 110, for example by means of a fan 112, is cooled by the heat contained in the air being dissipated via the heat exchanger 110 to the cooled outer portion 12 of the at least one Peltier element 1. The accordingly cooled internal exhaust air 116 of the heat exchanger 110 then cools the interior space of the laboratory device. The waste heat generated at the other outer portion 14 of the at least one Peltier element 1 is dissipated by means of the thermally connected heat exchanger 120, which is supplied with external supply air 124, for example via the corresponding fan 122, which supply air extracts heat from the heat exchanger 120, i.e. , heats up, and is then discharged as warm external exhaust air 126.

[0129] The dissipation of the heat of the heated outer portion 14 of the at least one Peltier element 1 is advantageous because the minimum temperature of the cooled outer portion 12 is limited by the temperature of the heated outer portion 14 via a maximum achievable temperature difference of the at least one Peltier element 1 . Consequently, the cooling performance of the Peltier system is also limited by the temperature of the heated outer portion 14, so efficient cooling of the outer portion 14 is advantageous. The cooling performance of the external heat exchanger 120 depends significantly on the temperature of the supplied external supply air 124; if this mixes with the external exhaust air 126 of the external heat exchanger 120, the temperature of the supplied air 124 increases, and the cooling performance via the external heat exchanger 120 decreases. It is understood that the above statements also apply, mutatis mutandis, to other temperature control systems, the performance of which typically depends on the heat exchange with the ambient air, and may be limited by this. For example, the cooling performance of acompression refrigeration machine also depends on the cooling air supplied to cool the external heat exchanger 120.

[0130] As already explained, it is therefore disadvantageous if devices (e.g. laboratory devices) which comprise at least one temperature control system which is supplied with ambient air (e.g. Peltier system) are placed with minimal distances from the wall, as this can lead to heat build-up and air mixing. This is illustrated, for example, in Fig. 3 using a laboratory device. Inadequate air conditioning at the location where the device is installed can further exacerbate these problems.

[0131] With reference to Fig. 3, a laboratory device 20 is equipped on a rear side 24, for example, with two Peltier systems 100 which are designed to cool an interior space 22 of the laboratory device 20. The rear side is opposite a front side 28, from which the interior space can be accessed, e.g. by means of a door. An upper Peltier system 10Oo is arranged in an upper region of the rear side 24 of the laboratory device 20, and a lower Peltier system 100u is arranged in a lower region of the rear side 21 of the laboratory device 20. Alternatively, the laboratory device 20 can also comprise, for example, four or more Peltier systems 100, preferably two or more upper and lower Peltier systems arranged next to one another. The laboratory device 20 is often installed with a minimum permitted distance between the rear side 21 and a wall 30, and / or an upper side 26 of the laboratory device 20 and the ceiling 32. For the purpose of cooling the interior space 22, supply air 114 from the interior space 22 of the laboratory device 20 is supplied to the internal heat exchanger 110, which is cooled by the at least one Peltier element 1 , by means of the corresponding fan 112, and is cooled by the internal heat exchanger 110, so that subsequently cooled internal exhaust air 116 flows back into the interior space 22, which is gradually cooled.

[0132] The external exhaust air 126 of the external heat exchanger 120 on the rear side 24 of the laboratory device 20, which is intended to carry heat awayfrom the Peltier system 100, disadvantageously cannot easily mix with the ambient air of the surrounding room due to the wall 30 and ceiling 32. Rather, there is a risk that the external exhaust air 126 will accumulate in the space between the rear side 24 of the laboratory device 20 and the wall 30, as well as between the upper side 26 of the laboratory device and the ceiling 32, and in particular will mix with the external supply air 124 sucked in via the corresponding fan 122 to cool the Peltier system 100, so the cooling performance of the external heat exchanger 120 can be disadvantageously reduced.

[0133] With reference to Fig. 4a and 4b, this problem is solved according to an embodiment of the present invention by spatially separating the external exhaust air 126 from the external supply air 126 supplied for cooling the Peltier system 100, for example by the fan 122. In particular, the external exhaust air 126 in the region of the Peltier systems 100, i.e. , for example, the rear side 24 of the laboratory device 20, can be specifically collected and discharged, e.g. channeled.

[0134] To separate supply and exhaust air, an air guide unit 40 can be provided which receives the external exhaust air 126 of the at least one Peltier system 100 and conducts it away from an intake area of the external supply air 124. With reference to Fig. 4a, the air guide unit 40 can, for example, be attached to the rear side 24 of the laboratory device 20, and collect the external exhaust air 126 and discharge it towards the upper side 26 of the laboratory device. In particular, the air guide unit 40 can comprise at least one air guide element 41 , which is correspondingly attached to the rear side of the laboratory device 20. The rear air guide element 41 can also be referred to as the first air guide element portion 42. In particular, in order to advantageously allow lower minimum distances from a laboratory ceiling 32, the external exhaust air can also be conducted towards the front side 28 of the laboratory device. For this purpose, the air guide element 41 can comprise a second air guide element portion 44.

[0135] In other words, the device comprises an air guide unit 40 which comprises at least one air guide element 41. At least one of the at least one air guide elements 41 can also comprise a plurality of air guide element portions 42, 44.

[0136] With reference to Fig. 4b, the air guide element 41 can accordingly comprise a first air guide element portion 42 on the rear side 24 of the laboratory device 20 and a second air guide element portion 44, which is arranged, for example, on the upper side 26 of the laboratory device 20. It is understood that the first air guide element portion 42 and the second air guide element portion 44 are flu idical ly connected to one another in order to form the air guide element 44. Alternatively, the second air guide element portion 44 could also be arranged, for example, on a lateral surface of the laboratory device or on an underside 29 of the laboratory device.

[0137] The air guide unit 40 can receive exhaust air from the external heat exchangers 120 of the respective Peltier systems 100. The external heat exchangers 120 of the respective Peltier systems 100 can be accommodated in the at least one air guide element 40, in particular in the first air guide portion. If the air guide unit 40 comprises a plurality of air guide elements 41 and the device comprises a plurality of Peltier systems, each air guide element can receive the exhaust air of at least one heat exchanger of the plurality of temperature control systems. In order to allow the supply of the supply air 124, the air guide unit or the at least one air guide element can comprise corresponding supply openings 46, which, for example, allow the fans 122 of the Peltier system 100 to be located outside the air guide unit or the air guide element, as shown in Fig. 5 a). Alternatively, the fans 122 could also be located within the air guide unit 40 or the air guide element 41 and only suck in the supply air through the supply opening 46 (cf. Fig. 5 b).

[0138] In general, the at least one air guide element 41 of the air guide unit 40 and in particular the first air guide element portion 42 can be dimensioned such that at least the external heat exchanger 120 can be accommodated therein, i.e. , can be enclosed by the air guide element 40. If the at least one Peltier system 100 comprises a fan 122 for supplying external supply air 124, this can be arranged either outside the air guide element 40 (Fig. 5 a)) or inside the air guide element 41 (Fig. 5 b)). In the first case, in which the fan 122 is arranged outside the air guide element 40 (see Fig. 5 a)), the air guide element 40 can have a depth of at least 50 mm. In the second case, in which the fan 122 is arranged within the air guide element 40 (see Fig. 5 b)), the air guide element 40 can have a depth of at least 85 mm. In any case, the at least one air guide element 40 comprises at least one supply opening 46 through which the external supply air 124 can be provided, e.g. sucked in.

[0139] The air guide element can have a width in the range of 200 to 2000 mm, for example in the range of 500 mm to 1200 mm. The air guide element can have a height in the range of 700 to 2000 mm, for example in the range of 1200 mm to 2000 mm.

[0140] The air guide unit 40 can comprise air-directing elements (e.g. air baffles) which are designed to influence, i.e. to manipulate, the air flow within the air guide unit 40 or the at least one air guide element 41 . As a result, the air flow over the at least one external heat exchanger can preferably be improved and, if necessary, optimized with respect to the heat transfer line by means of air-directing elements.

[0141] Additionally or alternatively, a central supply fan can also be provided, which provides the supply air for all Peltier systems, preferably at the bottom of the rear side of the laboratory device via a supply opening. The distribution of the supply air to the respective Peltier systems 100 can then preferably be realized by means of corresponding air-directing elements.

[0142] The air guide unit or the at least one air guide element can also comprise at least one outlet opening 48 through which the exhaust air is discharged into the environment of the laboratory device. Preferably, the at least one outlet opening 48 is attached to a different side of the laboratory device than the at least one supply opening 46. Additionally or alternatively, the at least one outlet opening 48 may preferably be oriented in an opposite direction to the at least one supply opening 46. These arrangements of the supply and outlet openings can advantageously prevent or at least slow down or reduce mixing of exhaust air and supply air.

[0143] In addition or as an alternative to the at least one fan 122 of the at least one Peltier system, the air guide unit 40 can comprise at least one exhaust air fan which is designed to suck in and discharge the external exhaust air 126. This at least one exhaust air fan can also supply the external supply air 124 by discharging the external exhaust air 126, so that corresponding fans 122 of the at least one Peltier system 100 can be omitted. The at least one exhaust air fan can be arranged, for example, at the at least one outlet opening 48 or also within the air guide element 40.

[0144] The provision of the second air guide element portion 44 on an upper side 26, lateral surface or underside 29 of the laboratory device advantageously makes it possible to conduct the external exhaust air 126 away from the rear side of the laboratory device towards a front side 28 of the laboratory device 20 which is opposite the rear side 24 of the laboratory device. As a result, external supply air 124 can be sucked in via the external fan 126 of the at least one Peltier system 100, which supply air is not mixed with the external exhaust air 124 and is in particular cooler, so that a better cooling performance can be achieved at the same ambient temperature and the same distance from the wall in comparison to the example in Fig. 3. Preferably, the at least one supply opening can be arranged in the first air guide element portion 42, and the at least one outlet opening can be arranged in the second air guide element portion 44.

[0145] By providing the second air guide element portion 44 for air guide elements of the air guide unit, it is advantageously possible in particular to achieve a smaller minimum distance between the upper side of the device and the ceiling. Accordingly, the provision of the second air guide element portion 44 may be particularly relevant for installation locations where the height distance from a laboratory ceiling is not sufficiently realized. If, for example, a minimum distance of 570 mm from the laboratory ceiling is required without the second air guide element portion 44, this minimum distance can be reduced to 300 mm (or less), for example, if the second air guide element portion 44 is provided.

[0146] Figure 6 shows an example of an air guide element 40 which comprises a single air guide element 41. The air guide element also corresponds to the first air guide element portion 42, which in some embodiments can also represent the entire air guide element (cf. Fig. 4 a)). The air guide element portion 42 is intended for 4 Peltier systems and accordingly has 4 supply openings 46. The first air guide element portion 42 can be attached to the rear side of the laboratory device, as shown for example in Fig. 4, so that the first air guide element portion 42 and the rear side of the laboratory device provide a space or volume in which the exhaust air 126 is separate from the supply air 124 and allows the supply and discharge of air via the supply openings 46 and the resulting outlet opening. The first air guide element portion 42 and more generally the air guide element 41 or the air guide unit can therefore, together with outer sides of the laboratory device, provide a volume in which the exhaust air from the Peltier systems can be collected and discharged / conducted away.

[0147] The air guide unit 40 preferably consists of metal, e.g. galvanized sheet steel. In some embodiments, the air guide unit 40 may be at least partially insulated. This can advantageously reduce heat exchange between the external exhaust air 126 and the external supply air 124 via the material of the air guide unit 40.

[0148] In some embodiments, the air guide unit 40 and thus the at least one air guide element 41 can have further openings, e.g. passive supply openings that allow air to be supplied by means of thermal convection. Corresponding passive supply openings can preferably be arranged below the Peltier systems 100.

[0149] In embodiments in which the laboratory device comprises a plurality of Peltier systems, the air guide unit can comprise a plurality of air guide elements, each of which receives the exhaust air from at least one Peltier system. In other words, the invention is not limited to the device and in particular the air guide unit comprising only one air guide element, but rather the laboratory device can also comprise a plurality of air guide elements, wherein each air guide element receives at least the exhaust air of a Peltier system and thus the corresponding exhaust air of at least one heat exchanger 120.

[0150] If the air guide unit comprises a plurality of air guide elements, these can also be routed along different outer sides of the laboratory device. In particular, the respective second air guide element portions 44 can be arranged on different outer surfaces of the laboratory device, e.g. on the two lateral surfaces of the laboratory device.

[0151] The device can basically be designed to control and / or regulate the temperature in the interior space of the device. For this purpose, the device can comprise a control device which is designed to control and / or regulate the at least one temperature control system (preferably individually). For example, different temperature zones can be allowed in the interior space of the device.

[0152] The improvements achieved by the present invention are also evident in comparative measurements for a laboratory device with and without a corresponding air guide unit 40. These comparative measurements werecarried out using a laboratory device 20 with four Peltier systems 100 arranged on the rear wall of the laboratory device. The corresponding arrangement is shown in Fig. 7, where Fig. 7 a) shows a rear view of the laboratory device and Fig. 7 b) shows a side view of the laboratory device.

[0153] The four Peltier systems 100 are arranged in two rows and two columns with two Peltier systems 100 each, on the rear side 24 I rear wall of the laboratory device 20. In other words, the Peltier systems 100 are arranged such that there is another Peltier system 100 next to and above or below each Peltier system 100.

[0154] Fig. 7 b) illustrates the laboratory device in a side view, wherein, in contrast to Fig. 7 a), the air guide unit 40 is also shown on the rear side 24 of the laboratory device 20. The air guide unit 40 comprises a single air guide element 41 .

[0155] For the test measurement, the laboratory device was placed with a distance ds of 150 mm laterally to a side wall and a distance cfo of 200 mm from the air guide element 40 on the rear side 24 of the laboratory device and the rear wall. The measurements were then taken with both the second air guide element portion 44 and a distance do between the upper side of the second air guide element portion 44 and the ceiling of 300 mm, as well as without the second air guide element portion 44 and a distance do between the upper side and ceiling of 565 mm. Comparable results were obtained for both experimental setups.

[0156] It goes without saying that a certain amount of air circulation is also possible on the underside of the device between the front and the rear side of the laboratory device, as it is mounted on appropriate rollers, which means that there is free space underneath the laboratory device.

[0157] During the test measurement, the temperature was recorded at different points inside and outside the laboratory device. In particular, the temperature of the air supplied to and discharged from the Peltier systems 100 as well as the temperature of the exhaust air at the outlet opening of the air guide element were recorded. Additionally, the ambient temperature outside the laboratory device and in the interior space of the laboratory device were recorded.

[0158] At an ambient air temperature of 28°C, only a temperature greater than 0°C could be achieved in the interior space 22 of the laboratory device 20 without a corresponding air guide element 40 (cf. Fig. 3). By providing an appropriate air guide element, a temperature of 0°C could be achieved inside the laboratory device at the same ambient temperature (cf. Fig. 4). In particular, the temperature of the external exhaust air 126 could be reduced by approximately 2°C to 4°C, and the temperature of the external supply air 124 could be reduced by approximately 5°C to 7°C by using an air guide element 40. Furthermore, by providing the air guide element 40, a difference in the temperatures for the external supply and exhaust air between the upper and lower Peltier systems 100o, 100u could also be eliminated; without the air guide element 40, the temperatures of the lower Peltier system 100u were higher than for the upper Peltier system 100o. This shows the advantageous effect of the present invention, which is particularly relevant for laboratory devices in space-limited and sometimes poorly air-conditioned laboratory rooms.

[0159] The present invention advantageously makes it possible to prevent heat build-up and undesirable air mixing in the region of the at least one temperature control system, e.g. in the intake area of the external fan 122 of the at least one Peltier system 100. This advantageously makes it possible to achieve the maximum cooling and heating performance of the device (e.g. of the Peltier climate cabinet) even with a minimal distance between the rear wall 24 of the device and the wall 30 of the installation room and additionally at borderline ambient temperatures, since mixing of exhaust air and supply air isprevented or reduced by means of spatial separation, and the temperature of the supply air almost corresponds to the ambient temperature of the installation room. In the above example, this means that the intake temperature of the Peltier external fans 122 almost corresponds to the ambient temperature of the installation room. Furthermore, the warm external exhaust air 126 may additionally advantageously reduce the risk of falling below the dew point - for CO2 sensors and / or humidity sensors installed above the device.

[0160] In other words, the present invention advantageously eliminates possible heat build-up and air mixing by the exhaust air of the temperature control system, e.g. Peltier waste heat air 126 (especially if a plurality of temperature control systems is installed) in the rear wall area 24 of a corresponding device 20 (e.g. climate cabinet) by spatially separating the exhaust air and supply air, e.g. the areas: "Peltier external heat sink (Peltier waste heat)" & "Peltier external fan intake (ambient temperature)."

[0161] Whenever a relative term such as "approximately," "substantially," or "essentially" is used in this description or the claims, such a term should be construed to include the exact term as well. That is to say, e.g., "substantially straight" should be construed to also include "(exactly) straight."

[0162] Whenever steps are mentioned in the above and / or in the appended claims, it should be noted that the order in which the steps are mentioned in this text may be random. That is, the order in which the steps are presented may be random unless otherwise specified or obvious to a person skilled in the art. That is, if in the present document, for example, it is stated that a method comprises steps (A) and (B), this does not necessarily mean that step (A) occurs before step (B), but it is also possible that step (A) (at least in part) is carried out simultaneously with step (B) or that step (B) occurs before step (A). Furthermore, if it is stated that a step (X) precedes another step (Z), this does not mean that there is no step between steps (X) and (Z). That is,step (X) before step (Z) comprises the situation that step (X) is performed directly before step (Z), but also the situation that (X) is performed before one or more steps (Y1 ), .... followed by step (Z). Corresponding considerations apply when terms such as "after" or "before" are used.

[0163] While a preferred embodiment has been described above with reference to the accompanying drawings, a person skilled in the art will understand that this embodiment has been provided for illustrative purposes only and should in no way be construed as limiting the scope of the present invention which is defined by the claims.

Claims

Claims1. Device comprising at least one temperature control system (100) for temperature control of an interior space (22) of the device (20), wherein the at least one temperature control system (100) respectively comprises an external heat exchanger (120) arranged on an outer side of the device (20), which heat exchanger is designed to exchange heat between the temperature control system (100) and supply air (124) conducted via the external heat exchanger (120), an air guide unit which takes in exhaust air (126) from the respective external heat exchanger (120) of the at least one temperature control system and conducts it away from it.

2. Device according to the preceding claim, wherein the air guide unit (40) spatially separates the exhaust air (126) from the supply air (124) in the region of the at least one temperature control system (100).

3. Device according to any of the preceding claims, wherein the air guide unit (40) respectively accommodates the external heat exchanger (120) of the at least one temperature control system (100).

4. Device according to any of the preceding claims, wherein the air guide unit (40) comprises at least one outlet opening (48) through which the exhaust air is discharged to an environment of the device.

5. Device according to any of the preceding claims, wherein the air guide unit comprises at least one air guide element, wherein at least one of the at least one air guide element (40) comprises a plurality of interconnected air guide element portions (42, 44).

6. Device according to the preceding claim, wherein the plurality of interconnected air guide element portions (42, 44) are arranged on at least 2 different outer sides of the device (20).

7. Device according to any of the two preceding claims, wherein the first air guide element portion (42) is designed to receive the exhaust air (126) of the external heat exchanger (120) of the at least one temperature control system (100) and to conduct it into the second air guide element portion (44).

8. Device according to any of the preceding claims, wherein the at least one temperature control system (100) further comprises an internal heat exchanger (110) which is arranged in an interior space (22) of the device (20) and is designed to exchange heat between the at least one temperature control system (1 ) and supply air (114) conducted via the internal heat exchanger (110).

9. Device according to any of the preceding claims, wherein the at least one temperature control system (100) is a Peltier system (100), wherein the at least one Peltier system comprises at least one Peltier element (1 ), and wherein the external heat exchanger is designed to exchange heat between the at least one Peltier element and supply air conducted via the external heat exchanger.

10. Method for exhaust air management of a device, comprising temperature controlling an interior space of the device by means of at least one temperature control system (100), wherein the temperature control system (100) comprises an external heat exchanger (120) arranged on an outer side of the device (20), supplying supply air (124) to the external heat exchanger (120), conducting the supply air (124) via the heat exchanger (120),exchanging heat between the supply air (124) and the heat exchanger (120) and thereby generating exhaust air (126) which has a different temperature than the supply air (124), and spatially separating the exhaust air (126) from the supply air (124) in the region of the temperature control system (100), wherein the device is a device according to any of the preceding claims.

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