EP2476975A2 - Heat transfer device for a vehicle - Google Patents

Abstract

The heat transfer apparatus has a capacitor (102) for condensing a refrigerant, a flow channel for passing the refrigerant and another flow channel for conducting fluid. The flow channels are arranged, so that heat energy transfer between the refrigerant and fluid is enabled. A volume element (104) e.g. battery for storing the refrigerant in fluid state, is connected to flow channel for passing refrigerant, and is integrally connected to the capacitor.

Description

The present invention relates to a heat transfer device for a vehicle.

A conventional refrigerant refrigerant in a vehicle is connected via a pipe to a liquefied refrigerant storage tank. The line has joints, such as flanges, fittings and sealing elements between pipe sections. Therefore, a conventional capacitor has a plurality of potential leaks. A large number of components and complex connection and attachment via holders cause high costs and make the package uneconomical.

It is the object of the present invention to provide a device for heat transfer for a vehicle.

The object is achieved by a device for heat transfer for a vehicle according to the main claim.

The present invention is based on the finding that a storage container for refrigerant can be integrated directly into a condenser as a collector. This eliminates critical junctions in lines that are prone to leaks. The reservoir and the condenser can be connected by a joining process such as welding or soldering cohesively. By way of a corresponding design transition region between the components, for example, a terminating element of the capacitor can be an integral part of the reservoir. In order to realize a compact design, it is possible to cool the capacitor as an indirect capacitor with a coolant such as water or a glycol-water mixture. Compared to an embodiment of the condenser with a heat transfer between the condenser and air results in a smaller heat exchanger, since due to a higher heat capacity of water and a more favorable heat transfer coefficient, a smaller area for the heat transfer is necessary. This allows the condenser to be placed closer to other components of a refrigerant circuit. Due to the smaller space requirement, the reservoir can be integrated into the capacitor component. A smaller number of installed components requires lower production costs and lower assembly costs. An elimination of connecting flanges and lines leads to improved tightness.

Advantageously, can be achieved by a direct combination of a liquid-cooled capacitor with a volume element, within a one-piece component, a more compact design, which is optimized in terms of space. This also eliminates the need for flanges and connection components. By a complete killing, which leads to a component and thus the elimination of connecting flanges and pipes, a cost advantage by lower material costs can be realized. Also, improved leak tightness can be achieved by eliminating O-rings and reducing potential leaks.

• einem Kondensator zur Kondensation eines Kältemittels, mit einem ersten Strömungskanal zur Leitung des und einem zweiten Strömungskanal zur Leitung eines Fluids, wobei die Strömungskanäle ausgebildet sind, um Wärmeenergie von dem Kältemittel auf das Fluid zu übertragen; und
• einem Volumenelement, das zur Bevorratung des Kältemittels fluidisch mit dem ersten Strömungskanal verbunden ist, wobei das Volumenelement stoffschlüssig mit dem Kondensator verbunden ist.

The present invention provides a device for heat transfer for a vehicle, having the following features:

• a condenser for condensing a refrigerant, having a first flow passage for conducting and a second flow passage for conducting a fluid, wherein the flow passages are configured to transfer heat energy from the refrigerant to the fluid; and
• a volume element, which is fluidically connected to the storage of the refrigerant to the first flow channel, wherein the volume element is materially connected to the capacitor.

A condenser can be understood as meaning a heat exchanger which is designed to convert a fluid under the removal of energy from a gaseous phase into an at least partially liquid phase. For this purpose, for example, another fluid in the capacitor absorb the extracted energy. The further fluid may be a liquid, such as water with or without additives. The further fluid may also be a gas such as air or carbon dioxide. The condenser may have at least two flow channels. A flow channel may be fluid-impermeable to the other flow channel and / or the environment. The flow channels can be arranged in immediate proximity to one another, so that an energy flow in the form of heat between the flow channels has to overcome low thermal resistance. The flow channels may consist of one with good thermal conductivity, such as copper, aluminum, plastic or iron materials. In the flow channels internals may be arranged, which improve the heat transfer between the fluid and an interface of the flow channel, For example, turbulence plates or other turbulence generating structures may be arranged in the flow channels. In the first flow channel, a refrigerant can be introduced. The refrigerant may absorb heat, for example, at low temperature and low pressure, and at higher temperature and higher Release heat. In the second flow channel, a coolant can be introduced. The coolant may be, for example, cooling water. The coolant can dissipate heat. Under a volume element can be understood a reservoir. The volume element can be made fluid-tight with respect to the surroundings. The volume element can have at least two openings through which the refrigerant can flow in or out in the first flow channel. The volume element can be soldered, glued or welded with capacitor. The device may have multiple ports. Through one of the connections, the refrigerant can flow into the first flow channel of the condenser, through a second of the connections, the refrigerant can flow out of the device. Through a third connection, the coolant can flow into the second flow channel, and through a fourth connection, the coolant can flow out of the second flow channel.

According to a further embodiment of the present invention, the device comprises a base plate which is arranged between the capacitor and the volume element, wherein a first of the base plate forms a base of the capacitor, and a second side of the base plate forms a top surface of the volume element, below a base plate be understood an intermediate element. An extension plane of a base surface of the capacitor may coincide with an extension plane of a cover surface of the volume element, that is to say that at least part of the base surface of the capacitor is formed by the intermediate element. Also, the base can be arranged directly adjacent to the top surface. The base plate may be part of the capacitor on a first side and part of the volume element on the second, opposite side. The base plate can fluid-tightly separate the volume element from the second flow channel. By a stacked structure of the device manufacturing can be done very efficiently.

Furthermore, the volume element can have at least one passage for the passage of the fluid or of the refrigerant through the volume element, wherein the passage is fluidically connected to the first or second flow channel. A passage in the sense of the invention may, for example, be a pipe or one or more channels. The passage may, in particular, guide the fluid from the second flow channel through the volume element if the flow channel is connected to one side of the volume element which deviates from one side of the volume element on which the capacitor is located. As a result, different connection situations can be handled in the vehicle with minimal space.

According to a further embodiment of the present invention, the device may comprise a subcooling element, with a third flow channel for conducting the refrigerant and a fourth flow channel for conducting the fluid, wherein the third flow channel for subcooling the coolant from the volume element is fluidically connected to the volume element, and wherein the fourth flow channel may be fluidly connected to the second flow channel, wherein the supercooling element is materially connected to the volume element. Under a subcooling element, a heat exchanger can be understood. In the subcooling element, further heat energy can be withdrawn from the condensed liquid present in the liquid phase. Thereby, a temperature of the liquid refrigerant can be further lowered below an evaporation temperature of the refrigerant. A third flow channel may lead from the volume element to a port for the refrigerant. A fourth flow channel can guide the fluid so that it can extract heat energy from the refrigerant. The third and fourth flow channels can be separated from each other in a fluid-tight manner. By means of a subcooling element, the refrigerant can reach a greater heat absorption capacity than directly after condensation in the condenser.

In a further embodiment, the supercooling element can be arranged on a side of the volume element which is opposite to the condenser be. Alternatively, the subcooling element and the condenser may be arranged on the same side of the volume element. With this arrangement, the refrigerant may flow first through the condenser into the volume element and then out of the volume element through the subcooling element. The condenser and the subcooling element may be spaced from each other. The capacitor and also or alternatively the subcooling element may comprise a plurality of interleaved plate elements. The flow channels can be formed by the plate elements. Furthermore, the condenser and / or the subcooling element may comprise turbulence elements. Under a plate member can be understood a predominantly formed in a main extension plane component, such as a stacking disk. The plate element may have elevations, depressions and / or openings, which are designed to connect a first plate element with at least one further plate element and thereby form at least two flow channels. A turbulence element can be understood to mean a component that is formed by openings, cuts and / or shapes in order to generate eddies in a fluid flowing past and to produce a turbulent flow. In this case, the turbulence element can be arranged within one or more flow channels. Multiple plate elements can be nested against each other to form the flow channels. In this case, the condenser and / or the subcooling element can conduct the fluid separated from the refrigerant. By stacking disc design, a simple, economical manufacturing method can be realized, since the stacking disks can be self-centering and no moving parts are arranged in the stack. A stack of stacking disks can be completely soldered, glued or welded with adjacent volume element and also with subcooling element in one operation.

In an additional embodiment of the present invention, the volume element may be constructed of further plate elements and at least one inserted rib element, wherein the rib element is formed is to form enlarged flow channels for storing the refrigerant. The volume element can also be made up of stacking disks. For this, the turbulence elements can be replaced by at least one rib element. The rib member may be a spacer which can form cavities between ribs of the spacer with the plate members. The cavities can be sealed against the environment fluid-tight. The ribs may be offset, continuous or gilled, for example. By the construction of the volume element of stacking discs and rib elements, the manufacture of the device can be further simplified and streamlined.

According to a further embodiment of the present invention, the volume element may have at least two stiffening ribs in the interior, wherein an outer shell of the volume element between the stiffening ribs has an outwardly curved shape. The volume element may also consist wholly or partly of a continuous casting or cast part. As a result, a wall thickness of the volume element can be adapted to an operating pressure in the volume element. The wall thickness can be minimized by reinforcing ribs in the volume element and / or pressure-optimized wall design. An outwardly curved shape can withstand the same wall thickness higher pressure than a mold.

According to a further embodiment, the volume element for filtering the refrigerant and additionally or alternatively a means for drying or dehydrating the refrigerant. As a result, a consistent quality of the refrigerant can be ensured. The means for filtering the refrigerant and / or a means for drying or dewatering the refrigerant may alternatively also be attached to the volume element.

According to one embodiment, the volume element may have a free internal volume between 0.3 dm ³ and 0.01 dm ³ . As a result, a suitable amount of liquid for the cooling system in the volume element stored become. The term "a volume which is free in operation" is to be understood according to the invention as meaning the volume of the volume element less any installations such as means for filtering, drying, etc.

Regardless of this, it may be advantageous in accordance with the invention for the device for heat transfer for a vehicle to have the following features: a subcooling element for subcooling a refrigerant with at least one third flow channel for conducting the refrigerant and at least one fourth flow channel for conducting a fluid, the flow channels being formed are to transfer heat energy from the refrigerant to the fluid and a volume element, which is fluidically connected to the storage of the refrigerant to the third flow channel, wherein the volume element is integrally connected to the subcooling element. According to this embodiment, therefore, the supercooling element and the volume element form a structural unit, wherein the condenser is designed as a separate component and is fluidically connected, for example via lines, to the volume element.

Fig. 1a bis 1d

schematische Darstellungen mehrerer Ausführungsbeispiele einer Vorrichtung zur Wärmeübertragung gemäß dem hier vorgestellten Ansatz;

Fig. 2 und 3

räumliche Darstellungen zweier Ausführungsbeispiele eines Kondensators mit einem direkt verbundenen Volumenelement gemäß dem hier vorgestellten Ansatz;

Fig. 4 und 5

Seitenansichten zweier Ausführungsbeispiele eines Kondensators mit einem direkt verbundenen Volumenelement und einem direkt verbundenen Unterkühlungselement gemäß dem hier vorgestellten Ansatz

Fig. 6a bis 7b

Draufsichten und Schnitte zweier Ausführungsbeispiele eines Bestandteils eines Volumenelements gemäß dem hier vorgestellten Ansatz;

Fig. 8a und 8b

eine Seitenansicht und einen Teilschnitt eines Kondensators mit einem direkt verbundenen Volumenelement aus Stapelplatten gemäß einem Ausführungsbeispiel der vorliegenden Erfindung; und

Fig. 9a und 9b

eine Seitenansicht und einen Teilschnitt eines Kondensators mit einem direkt verbundenen Volumenelement aus Stapelplatten und einem direkt verbundenen Unterkühlungselement gemäß einem Ausführungsbeispiel der vorliegenden Erfindung.

Fig. 10a und 10b

zwei weitere Ausführungsbeispiele einer edindungsgemäßen Vorrichtung.

Advantageous embodiments of the present invention will be explained below with reference to the accompanying drawings. Show it:

Fig. 1a to 1d

schematic representations of several embodiments of a device for heat transfer according to the approach presented here;

FIGS. 2 and 3

Spatial representations of two embodiments of a capacitor with a directly connected volume element according to the approach presented here;

4 and 5

Side views of two embodiments of a capacitor with a directly connected volume element and a directly connected subcooling element according to the approach presented here

Fig. 6a to 7b

Top views and sections of two embodiments of a component of a volume element according to the approach presented here;

Fig. 8a and 8b

a side view and a partial section of a capacitor with a directly connected volume element of stacking plates according to an embodiment of the present invention; and

Fig. 9a and 9b

a side view and a partial section of a capacitor with a directly connected volume element of stacking plates and a directly connected subcooling according to an embodiment of the present invention.

10a and 10b

two further embodiments of an edindungsgemäßen device.

In the following description of the preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various drawings and similar, and a repeated description of these elements will be omitted.

The FIGS. 1a to 1d Core is in each case a coolant-cooled condenser (iCond), which consists of a condensation part 102 and a collector 104 inextricably connected to the collector 104 as a solid body. Optionally, as in FIGS Figures 1b and 1c shown, also a supercooling 106 insoluble or releasably connected to the condensation part 102 or the collector 104, the installation position of the supercooling part can be arbitrary. The accumulator 104 and the supercooling part 106 may, as in Fig. 1d shown by way of example, have the same or different dimensions.

Fig. 1a shows a block diagram of a device for heat transfer for a vehicle according to an embodiment of the present invention. A capacitor 102 is materially connected to a volume element 104. The condenser has at least one first flow channel 108 for conducting a refrigerant 110, at least one second flow channel 112 for conducting a fluid 114. The first flow channel 108 is sealed fluid-tight against the second flow channel 112. The first flow channel has an inflow opening and an outflow opening, wherein the outflow opening opens into the volume element 104. Thus, the outflow opening of the first flow channel 108 is also an influence opening of the volume element 104. The volume element 104 is provided as a storage container for the refrigerant 110. The volume element 104 also has an outflow opening for the refrigerant 110. The second flow channel 112 in the condenser 102 has an inlet for the fluid 114 and an outlet for the fluid 114. In the condenser 102, heat energy may be transferred from the refrigerant 110 to the fluid 114.

Fig. 1b shows a schematic diagram of a device for heat transfer for a vehicle as an embodiment of the present invention. As in Fig. 1a a capacitor 102 is materially connected to a volume element 104. In contrast to Fig. 1a a supercooling element 106 is arranged on a side of the volume element 104 opposite to the condenser 102. The supercooling element 106 is likewise connected to the volume element 104 in a materially bonded manner. As in Fig. 1b As shown, the condenser 102 is disposed above the volume member 104 and the subcooling member 106 is disposed below the volume member 104. This can be condensed Gravity refrigerant from the condenser 102 flows into the volume element 104 and is stored there. From the volume element 104, the liquid refrigerant can flow by gravity into the subcooling element 106 and be further cooled there. The condenser 102, the volume element 104, and the supercooling element 106 may each have the same cross-sectional area.

Fig. 1c shows a schematic diagram of another device for heat transfer for a vehicle as a further embodiment of the present invention. As in Fig. 1b For example, a condenser 102 is materially connected at least to a volume element 104 and / or a subcooling element 106. In contrast to Fig. 1b For example, the condenser 102 and the supercooling element 106 are disposed on the same side of the volume element 104. Due to the arrangement of the subcooling element 106 on the same side of the volume element 104, as the capacitor 102, special space requirements can be taken into account. Furthermore, there is the possibility to stockpile a larger amount of refrigerant, since the volume element 104 compared to the capacitor 102 and the supercooling element 106 has a larger size.

Fig. 1d shows a schematic diagram of a device for heat transfer for a vehicle as a further embodiment of the present invention. The arrangement shown essentially follows the arrangement Fig. 1b , with a condenser 102, a volume element 104 and a subcooling element 106, which are materially connected to each other, wherein the condenser 102 and the subcooling element 106 are arranged on opposite sides of the volume element 104. In contrast to Fig. 1b the individual components of the device have different dimensions. Thus, the volume element 104 has smaller dimensions than the capacitor 102. The subcooling element 106 again has smaller dimensions than the volume element 104. According to this embodiment, the smaller dimensions in each case on the height and base area the respective individual components. Thus, the individual components can be adapted to specific operating conditions, space requirements and performance requirements.

The FIGS. 2 to 5 each show a coolant cooled condenser 102 in a stacked disc design, according to various embodiments of the present invention. Here, a heat exchanger is shown in Komplettlötung with integrated collector. Different types of stack construction are also possible. The heat transfer takes place in a first part through layered Stapeischeiben, which are alternately flowed through with refrigerant and water or a glycol mixture. This first part is fired by a suitable part 204. In this case, by means of a so-called base plate 204. The base plate 204 is directly adjoined by a volume element 104, which serves to store the refrigerant. The volume element 104 may be open on both sides, as in the Figures 3 and 4 shown, or made open on one side, as in the Figures 2 and 5 is shown. The dimensions of the volume portion 104 may be less than, equal to or greater than the stacked plate heat exchanger portion 102. The volume element 104 has at least one refrigerant inlet and one refrigerant outlet 206. The refrigerant can be introduced via the open side. In addition, the volume element 104 may have one or more channels for the further guidance of refrigerant and / or water or a glycol mixture, for example, to supply a subcooling path 106 with refrigerant or water or to represent a specific connection situation. In principle, the structure is also possible for alternative capacitor designs, such as flat tube packages or ribbed packages. The stacking disk is merely an exemplary embodiment, for example a stacked variant of extruded profiles and turbulence inserts is also possible. By an additional integration of a filter and / or a desiccant in the volume element (collector) preservation of desired properties of the refrigerant is possible. The connections shown here on the water and refrigerant sides are to be understood by the arrangement as an example and can be arranged as desired.

Fig. 2 shows a representation of an embodiment of an indirect capacitor 102 with integrated reservoir 104 (KOMO). The condenser 102 is configured by using foam sheets as the coolant-cooled condenser 102, that is, a component through which refrigerant and cooling water flow. The reservoir is designed as a volume component 104. Replacing an air cooled condenser with a coolant cooled condenser 102 provides new and different possibilities and conditions for integrating a header into the component. As a result, the number of connection points can be reduced and an attachment of the entire component in the engine compartment can be improved. As in Fig. 2 As shown, the stack of stacking disks is bounded downwardly by a base plate 204. The base plate 204 at the same time closes off the volume element 104 in the direction of the condenser 102 in a fluid-tight manner and projects circumferentially over outer edges of the volume element 104. The volume element 104 is executed in this embodiment as a flow press, casting or diecasting with directly integrally integrated bottom. Through the bottom, a refrigerant outlet 206 protrudes downward from the volume element 104. From the condenser 102, two tubular water connections 208 lead to the right and left on an upper side for the supply and removal of cooling water upwards. The Stapeischeiben have a quadrangular shape with rounded corners and have an upwardly embossed edge, which closes a cavity in the stack between two stacking discs.

Fig. 3 shows a view of a device for heat transfer according to an embodiment of the present invention. In essence, the presentation corresponds Fig. 3 the representation in Fig. 2 , In contrast to Fig. 2 the volume element 104 is designed here as an extrusion or continuous casting. Therefore, another base plate 204 closes off the volume element 104. The base plate 204 is arranged on a side of the volume element 104 opposite the capacitor 102.

Fig. 4 shows a side view of another device for heat transfer according to another embodiment of the present invention. In addition to the device in Fig. 3 For example, this device has a subcooling element 106 which is arranged on the side of the further base plate 204 facing away from the volume element 104. The supercooling element 106 is constructed of stacking disks which are rotated 180 ° relative to the stacking disks of the condenser 102 about a longitudinal axis of the stacking disks. Furthermore, a refrigerant inlet 402 is shown, which is arranged on a side facing away from the volume element 104 side of the capacitor 102, protruding from the capacitor 102 console. The console essentially corresponds to the console for the refrigerant outlet 206, which protrudes from the supercooling element 106 in this exemplary embodiment on a side of the supercooling element 106 facing away from the volume element 104. The main opening of the refrigerant inlet 402 is here occupied by one of the water connections 208. In this case, the refrigerant inlet 402 is arranged diagonally opposite the refrigerant outlet 206.

Fig. 5 shows a representation of a device for heat transfer according to an embodiment of the present invention, as shown in FIG Fig. 4 is shown. In contrast to Fig. 4 is the volume element 104 as in Fig. 2 designed as extruded part, casting or as a die-cast with bottom. Therefore, the sub-cooling member 106 has no base plate 204 as a final element. The Stapeischeiben the supercooling element 106 are attached directly to the bottom of the volume element 104.

The Figures 6a to 7b show two embodiments of a volume element 104 according to the approach presented here. For better compressive stiffness, the volume element 104 stiffening ribs 602, as in the FIGS. 6b to 7b shown, as well as having a curved print technically optimized outer shell. A thickness of the stiffening ribs may be smaller, equal to or greater than an outer wall thickness of the volume element. The height H of the volume element (in Fig. 7b ) depends on the external dimensions. The free internal volume may typically be between 0.0265 and 0.421 dm ^3, and more preferably between 0.051 and 0.161 dm ³ .

Fig. 6a Fig. 12 shows a bottom view of a bottom of a volume element 104 as part of an embodiment of the present invention. The bottom has an approximately rectangular shape. Lateral walls of the volume element 104 are formed wave-shaped. In the bottom view two orthogonal axes are drawn, representing the main directions of extension of the soil. Laterally offset to a longitudinal axis is a section AA recorded.

Fig. 6b shows a section along the section AA Fig. 6a , The section is perpendicular to the bottom of the volume element 104. The bottom, two outer walls and three reinforcing ribs 602 are marked as cut surfaces by hatching. The reinforcing ribs 602 have the same spacings between one another and with the outer walls.

Fig. 7a Figure 10 shows a view of a bottomless volume element 104 as part of an embodiment according to the present invention. The volume element 104 has an elongated rectangular outer contour. Perpendicular to the outer contour, the volume element 104 has stiffening ribs 602. The stiffening ribs 602 are evenly distributed symmetrically over the outer contour. Three stiffening ribs 602 perpendicular to a long side of the volume element 104 extend to an opposite long side. A middle of the three stiffening ribs 602 lies in a transverse axis of the volume element. Symmetrically with respect to a longitudinal axis of the volume element, the three reinforcing ribs 602 each have a breakthrough offset in the same direction. On short sides of the volume element 104 is located in each case one arranged in the longitudinal axis of the stiffening rib 602. Between the ribs, the outer contour has a curved shape. A section AA is corresponding to the section AA from Fig. 6a located.

Fig. 7b shows a vertical section along the section AA through the volume element 104 from Fig. 7a , The cut corresponds to the cut Fig. 6b , In contrast to Fig. 6b the volume element 104 has no bottom. The outer contour and the stiffening ribs 602 have a height H.

The FIGS. 8a to 9b show two variants of a heat exchanger 102 in stacked disk design. The collector 104 is also made of stacked disks. To generate the volume also discs are used, between which a rib 802 or the like is arranged. The number of discs with ribs depends on the desired internal volume and the size of the disc. In this case, the disks can be flowed through with ribs 802 to create a collector 104 in single or multi-flow design. For example, the ribs may be smooth, gilled, or staggered. To the volume element 104 then, as in the FIGS. 8a and 8b Shown again slices without additional ribs 802 to be installed. The rib thickness may be smaller than, equal to or greater than the stacking plate thickness.

Fig. 8a shows an illustration of a device for heat transfer for a vehicle according to an embodiment of the present invention. The device shown essentially corresponds to a device as shown in the FIGS. 4 and 5 are shown. In contrast to the FIGS. 4 and 5 For example, the volume element 104 is constructed of stacked disks with interposed ribs. Furthermore, the subcooling element 106 is composed of stacking disks which have the same orientation as the stacking disks of the condensation part 102 and the volume element 104. The subcooling element 106 terminates with a base plate 204. In the illustration, a section A is entered _. The section A runs perpendicular to a main extension plane of the stacking disks through the condenser 102, the volume element 104 and the subcooling element 106.

Fig. 8b shows the parts of a section A along the section A from Fig. 8b , In the condenser 102, two turbulence elements are respectively arranged between two stacking disks. In the volume element 104, a rib 802 is arranged between two stacking disks. The volume element 104 consists of three superimposed planes of ribs 802 and stacking disks. In the subcooling element 106, two turbulence elements are each again arranged between two stacking disks. The ribs 802 have an angular wavy shape. Flattened highs and lows of the wavy shape are connected to the adjacent stack disks. Linear connections between the high points and the low points connect the stacking disks with each other and keep the paper sheets at a distance.

Fig. 9a shows an illustration of a device for heat transfer for a vehicle according to an embodiment of the present invention. The representation corresponds to the representation in Fig. 8a , In contrast to Fig. 8a shows Fig. 9a no subcooling element. The volume element 104 terminates with a base plate 204.

Fig. 9b shows a sectional view through a part of the device Fig. 9a , Because in Fig. 9a no subcooling element is shown, also has the sectional view In contrast to Fig. 8a no subcooling element. Otherwise, the sectional view corresponds essentially Fig. 8b , As a conclusion of the volume element, a section through the base plate 204 is shown.

The Fig. 10a and 10b show two further embodiments of a device according to the invention, wherein for the sake of clarity, only the flow channels for the passage of the fluid 114 are shown. The subcooling element 106 according to Fig. 10a in this case has a first fourth flow channel 122 a, which is fluidically connected to a passage 150. Furthermore, the subcooling element 106 has a second fourth flow channel 122b, which is fluidically separated from the first fourth flow channel 122a. Here, the second fourth flow channel 122b has a longer path in the subcooling element 106, as the first fourth flow channel. With such an arrangement, it is possible to flow the device with a fluid 114 having different temperatures, with preferably the temperature of the fluid 114 flowing through the second fourth flow channel 122b being lower than the fluid 114 flowing through the first one fourth flow channel 122a flows.

Alternatively, it is according to another embodiment Fig. 10b It is also possible for the device to have a first second flow channel 112a and a second second flow channel 112b, the first second flow channel 112a being connected to a passage 150 and being fluidly separated from the second second flow channel 112b. Also in this embodiment, it is therefore possible to flow the device with a fluid 114 at different temperatures.

The described embodiments are chosen only by way of example and can be combined with each other.

Claims (15)

Heat transfer device for a vehicle, having the following features: a condenser (102) for condensing a refrigerant (110), comprising at least a first flow channel (108) for conducting the refrigerant and at least one second flow channel (112, 112a, 112b) for conducting a fluid (114), wherein the flow channels are formed to transfer heat energy from the refrigerant to the fluid; and a volume element (104), which is fluidically connected to the storage of the refrigerant to the first flow channel, wherein the volume element is materially connected to the capacitor. The device of claim 1, including a base plate (204) disposed between the capacitor (102) and the volume element (104), wherein a first side of the base plate forms a base of the capacitor, and a second side of the base plate a top surface of the volume element formed. Apparatus according to any one of the preceding claims, wherein the volume member (104) comprises at least one passage (150) for directing the fluid (114) or refrigerant through the volume member, the passage being fluidly connected to the first or second flow passage (112). Device according to one of the preceding claims, comprising a subcooling element (106), with a third flow channel for conducting the refrigerant (110) and a fourth flow channel for conducting the fluid (114), wherein the third flow channel for subcooling the coolant from the volume element (104) is fluidically connected to the volume element, and wherein the fourth flow channel is fluidically connected to the second flow channel (112 ), wherein the supercooling element is integrally connected to the volume element. An apparatus according to any one of the preceding claims, wherein the volume member (104) and subcooling member have at least one passageway (150) for directing a fluid (114) through the volume member and subcooling member, the passageway fluidly communicating with a first, fourth flow passage (122a) and a second fourth flow channel (122b) is provided in the subcooling element, which is fluidically isolated from the passage (150). An apparatus according to any one of the preceding claims, wherein the volume member (104) and subcooling member has at least one passageway (150) for directing a fluid (114) through the volume member and subcooling member, the passageway fluidly communicating with a first, second flow passage (112a) is and a second second flow channel (112 b) is provided, which is fluidically separated from the passage (150). Device according to one of the preceding claims, wherein the supercooling element (106) is arranged on a side facing the capacitor (102) Volumenetements, or the supercooling element and the capacitor are arranged on the same side of the volume element. Apparatus according to any one of the preceding claims, wherein the capacitor (102) and / or the supercooling element (106) interleave a plurality Plate elements, wherein the flow channels are formed by the plate members. The apparatus of claim 8, wherein the volume member (104) is constructed of further plate members and at least one inserted rib member (802), the rib member being shaped to form enlarged flow channels for storing the refrigerant (110). Device according to one of claims 1 to 8, wherein the volume element (104) in the interior at least stiffening ribs (602). Device according to one of the preceding claims, wherein at least one outer shell of the volume element between the stiffening ribs has an outwardly curved shape. Heat transfer device for a vehicle, having the following features: a subcooling element (106) for subcooling a refrigerant (110), having at least a third flow channel for conducting the refrigerant, and at least a fourth flow channel (122, 122a, 122b) for conducting a fluid (114), the flow channels being configured to receive heat energy from the refrigerant to the fluid; and a volume element (104), which is fluidically connected to the storage of the refrigerant with the third flow channel, wherein the volume element is materially connected to the subcooling element. Device according to one of the preceding claims, wherein the volume element (104) has a means for filtering the refrigerant (110) and / or a means for drying or dehydrating the refrigerant. Device according to one of the preceding claims, wherein a means for filtering the refrigerant (110) and / or a means for drying or dehydrating the refrigerant is attached to the volume element (104). Device according to one of the preceding claims, wherein the volume element (104) has an internal volume between 0.3 dm ³ and 0.01 dm ³ which is free during operation.

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