Heat transfer plate and corresponding use and arrangement of traction battery on heat transfer plate

Abstract

The invention relates to a heat transfer plate (1) for controlling the temperature of at least one electrical and / or electronic component by means of a liquid temperature control medium, comprising a plate body (2) which has an inlet (IN), an outlet (OUT) and a channel system (7) which connects the inlet (IN) to the outlet (OUT). In order to homogenize the temperature distribution along the plate body (2), it is proposed that the channel system (7) is configured such that, on the one hand, the through-flow cross-sectional area of the channel system (7) is larger in an entry region (26) exiting from the inlet (IN) than in an exit region (27) extending to the outlet (OUT), and, on the other hand, is configured such that the through-flow cross-sectional area of the channel system (7) is smaller in the exit region (26) than in the exit region (27) extending to the outlet (OUT). The average flow path in the channel system (7) is smaller than the shortest path through which the temperature control medium must flow along the edge of the channel system (7) from the inlet (IN) to the outlet (OUT).

Description

Technical Field

[0001] The present application relates to a heat transfer plate for controlling the temperature of at least one electrical and / or electronic component by means of a liquid temperature control medium. The present application also relates to the use of such a heat transfer plate and the arrangement of a traction battery on such a heat transfer plate. Background Art

[0002] In many technical applications, heat must be dissipated from electrical components to prevent overheating or to slow down their aging. For such electrical components and / or in certain operating conditions, it may also be necessary to heat the components, for example to achieve particularly high efficiency. For example, in the case of a traction battery in a battery-powered vehicle, heating the battery cells of the traction battery to charging temperature may be beneficial for optimal charging. During traction battery power output, at low ambient temperatures, it may also be necessary to heat the battery cells to prevent excessive power consumption. In contrast, during high battery power output, it may be necessary to cool the battery to prevent overheating and improve energy efficiency.

[0003] For temperature control, i.e., heating or cooling, heat transfer plates can be used. A liquid temperature control medium can flow through them and, in use, are in heat-transferring contact with the corresponding component to be temperature-controlled, in particular the traction battery. Such heat transfer plates are distinguished by their flat, particularly planar, design and their small installation space requirement. For example, such heat transfer plates can be installed in a battery housing for accommodating battery cells.

[0004] In the case where a large number of electrical or electronic components or correspondingly large electrical components, such as traction batteries, are to be temperature-controlled as uniformly as possible, the following problem often occurs in heat transfer plates having an inlet for supplying a temperature-control medium and an outlet for discharging the temperature-control medium: in a channel system that conducts the temperature-control medium, is formed within the heat transfer plate and fluidically connects the inlet with the outlet, heat is supplied to the corresponding components or dissipated therefrom unevenly. This is, for example, because the temperature of the temperature-control medium is forced to decrease or increase along the cooling channel system from the inlet to the outlet, depending on the heat to be supplied or dissipated. Summary of the Invention

[0005] The present application addresses the problem of providing an improved embodiment of the aforementioned heat transfer plate or a corresponding use, which is characterized in particular by a heat transfer performance that is as uniform as possible along the heat transfer plate.

[0006] According to the present application, this problem is solved by the subject matter of the independent claim. Advantageous embodiments are the subject matter of the dependent claims.

[0007] The present application is based on the following general concept: a channel system formed within the plate body of a heat transfer plate is configured, according to a first aspect, such that the channel system has a larger flowable cross-sectional area in the inlet-side inlet region than in the outlet-side outlet region, and, according to a second aspect, such that the average flow path in the channel system is at most 50%, preferably at most 25%, larger than the shortest path or shortest route that the temperature control medium must traverse along the edge of the channel system from the inlet to the outlet. Due to this first aspect, during operation of the heat transfer plate, the temperature control medium is forced to flow faster in the outlet region than in the inlet region. The flow velocity of the temperature control medium is correlated with the heat transfer performance, such that an increased flow velocity improves heat transfer. During operation of the heat transfer plate, heat transfer already occurs in the inlet region, reducing the temperature difference between the temperature control medium and the corresponding region of the heat transfer plate in the outlet region. To equalize the heat transfer performance along the channel system, the reduced temperature difference in the outlet region can be largely compensated by a higher flow velocity in the outlet region. Research by the applicant has shown that this second aspect significantly improves the effect of the first aspect and thus significantly contributes to equalizing the heat transfer performance along the heat transfer plate. Pressure losses develop in the temperature control medium along the flow path. With narrow channel cross-sections, the subsequent increased flow velocity leads to a significant increase in pressure losses. By combining the largest possible channel cross-section with the shortest possible channels, large areas of the heat transfer plate can be cooled in areas with lower cooling requirements with minimal pressure losses and, therefore, minimal pumping power required to drive the temperature control medium. The second aspect of the maximum flow path length thus leads to optimized pressure losses or, in other words, optimized efficiency of the heat transfer plate. The smaller the ratio of the average flow path length to the path length of the largest, shortest path, the better the optimization or efficiency increase.

[0008] In this context, "configured" is synonymous with "configured", so that the expression "configured so as to" is synonymous with the expression "configured so as to".

[0009] Specifically, the channel system defines a main flow direction for a temperature control medium flowing in the channel system from an inlet to an outlet. The channel system has a left channel boundary contour and a right channel boundary contour, with respect to the main flow direction, which define a cross-sectional area of ​​the channel system accessible for flow of the temperature control medium transversely to the main flow direction. The channel system further defines a left shortest path extending from the inlet along the left channel boundary contour to the outlet, and a right shortest path extending from the inlet along the right channel boundary contour to the outlet. The channel system has a total channel system length extending from the inlet to the outlet. According to the present application, the channel system is configured such that the total channel system length is at most 50%, particularly at most 25%, greater than the longer of the left shortest path and the right shortest path; or, if the left shortest path and the right shortest path are of equal length, the total channel system length is at most 50%, particularly at most 25% greater than either the left shortest path or the right shortest path. Furthermore, the channel system has an entry region having an entry region length, which extends from 20% to 40%, and preferably from 25% to 35%, of the total channel system length. Furthermore, the channel system has an outlet region having an outlet region length extending over 20% to 40% and preferably 25% to 35% of the total length of the channel system. A connecting region of the channel system connects the inlet region to the outlet region. According to the present application, the channel system is configured such that the average inlet region cross-sectional area available for flow of the temperature control medium in the inlet region is greater than the average outlet region cross-sectional area available for flow of the temperature control medium in the outlet region.

[0010] The inlet has at least one inlet connection for attaching an inlet line for feeding a temperature control medium. Typically, the inlet has only one inlet connection. However, it can be advantageous to provide two or more separate inlet connections, which together form the inlet.

[0011] The outlet has at least one outlet connection for attaching an outlet line for discharging the temperature control medium. Typically, the outlet has only one outlet connection. However, it can be advantageous to provide two or more separate outlet connections, which together form the outlet.

[0012] The applicant's research shows that the smaller the ratio of the total length of the channel system to the longer of the left shortest route and the right shortest route (if their lengths or sizes are different), or the smaller the ratio of the total length of the channel system to the left shortest route or the right shortest route (if their lengths or sizes are equal), the more evenly the heat transfer power can be distributed along the heat transfer plate over the entire temperature-controlled area of ​​the heat transfer plate. Accordingly, in an advantageous embodiment, the channel system can be configured such that: if the left shortest route and the right shortest route are of different sizes, the total channel system length is at most 40%, at most 30%, at most 25%, at most 20%, at most 15%, at most 10%, at most 5%, or in particular at most the same length as the longer of the left and right shortest routes; or, if the left and right shortest routes are of equal size, the total channel system length is at most 40%, at most 30%, at most 25%, at most 20%, at most 15%, at most 10%, at most 5%, or in particular at most the same length as the left or right shortest routes. A particularly advantageous configuration can thus be achieved if the total channel system length is less than the longer of the left and right shortest routes, or if the left and right shortest routes are of equal size, the total channel system length is less than the left or right shortest routes.

[0013] In one advantageous embodiment, the channel system can include a distribution region with an inlet and a distribution region length, and a collection region with an outlet and a collection region length. Furthermore, the channel system can form a contact region within the temperature control zone, which is configured on the plate surface for heat transfer coupling with the corresponding component to be temperature controlled and has a contact region length extending from the distribution region to the collection region, wherein the inlet region extends within the contact region and connects to the distribution region, and wherein the outlet region extends within the contact region and connects to the collection region. Thus, the distribution region with the inlet and the collection region with the outlet adopt the aforementioned design criteria for the total length of the distribution channel system in terms of region length, allowing for more precise design. In particular, with this configuration, the contact region can be used to customize the heat transfer plate to the actual temperature control conditions by providing contact or placement of the corresponding component to be cooled.

[0014] In particular, it can be provided that the length of the inlet region, the length of the outlet region, and the length of the connection region are each 1 / 3 of the length of the contact region. This results in a significant simplification of the design.

[0015] An advantageous configuration is one in which the length of the distribution region and the length of the collection region are each at most 15% or preferably at most 10% of the total length of the channel system. This design criterion results in an indirect definition of the contact region.

[0016] In another embodiment, the length of the distribution region and the length of the collection region can each be 9.5% of the total length of the channel system, or together 19% of the total length of the channel system, wherein the length of the inlet region, the length of the outlet region, and the length of the connection region can each be 27% of the total length of the channel system, or together 81% of the total length of the channel system. In this configuration, the contact region can also be indirectly defined.

[0017] Corresponding to an advantageous embodiment, it can be provided that, in the channel system, along the main flow direction, the distance between the left channel boundary profile and the right channel boundary profile varies. The channel system can have at least one channel section between the inlet and the outlet, which extends from one extreme value of the distance to the next extreme value of the distance along the main flow direction. The corresponding extreme value can be a maximum value or a minimum value. The two extreme values ​​are a minimum value and a maximum value, so that the corresponding channel section extends from the minimum value to the maximum value or from the maximum value to the minimum value. In a channel section, the distance between the left channel boundary profile and the right channel boundary profile is constant. In the case of this channel section, this channel section extends along the extreme value that can be the minimum value or the maximum value, so that at the starting point and the end point of this channel section, there can be a maximum value or a minimum value respectively and form a transition portion to an adjacent channel section. In this channel section, the distance forms a platform. The corresponding extreme value is defined in the following manner: at the corresponding extreme value, the straight line extending along the distance is perpendicular to the left channel boundary profile and perpendicular to the right channel boundary profile. The corresponding channel section has a section length measured along the center line of the channel section. The center line is formed here by the center point of the connecting straight line / connecting line, which connects a point of the left channel boundary profile having a percentage length share between two extreme values ​​in the range of 0% to 100% with a point of the right channel boundary profile having the same percentage length share between the extreme values ​​on the right channel boundary profile. For example, this connecting straight line connects a point at n% of the length of the left channel boundary profile, for example 10%, with a point at n% of the length of the right channel boundary profile, for example 10%. The geometric center point of the connecting straight line thus forms a point along the center line. At 0%, the connecting straight line corresponds to the extreme value at the starting point of the channel segment, and at 100%, the connecting straight line corresponds to the extreme value at the end point of the channel segment. Thus, the segment length is precisely defined. The total length of the channel system is now formed by the sum of the segment lengths of all channel segments that follow one another from the inlet to the outlet. Thus, the total length of the channel system is precisely defined. In the case where the inlet has only one inlet interface, the geometric center of the inlet interface serves as the starting point of the center line. If the inlet has multiple inlet connections, the geometric center of the envelope curve surrounding these inlet connections, the so-called "envelope," serves as the starting point of the center line. If the outlet has only one outlet connection, the geometric center of the outlet connection serves as the end point of the center line. If the outlet has multiple outlet connections, the geometric center of the envelope curve surrounding these outlet connections, the so-called "envelope," serves as the end point of the center line. The channel system can be configured so that it has only a single channel section. However, typically, the channel system has multiple channel sections that directly follow one another in the flow direction of the temperature control medium.In the case of two successive channel sections (forming an upstream channel section, which is first flowed through by the temperature control medium during operation of the heat transfer plate, and a downstream channel section, which is subsequently flowed through by the temperature control medium), the extreme value at the end of the upstream channel section simultaneously forms the extreme value at the beginning of the downstream channel section. In other words, the corresponding extreme value forms the transition between two adjacent channel sections. In the case of a flat heat transfer plate, the heat transfer plate defines a plate surface, and the aforementioned distances, extreme values, straight lines, and connecting straight lines extend parallel to the plate surface. In particular, the aforementioned distances, extreme values, straight lines, and connecting straight lines lie in a plane extending parallel to the plate surface.

[0018] Distance can be measured on left channel boundary profile and right channel boundary profile respectively about height direction preferably centered in the region with maximum inclination angle relative to plate surface.In the case of straight channel boundary profile, the inclination relative to plate surface is constant along channel boundary profile so that distance measurement is carried out with reference to height direction at the center of corresponding channel boundary profile.In the case of curved channel boundary profile, consider the steepest part of channel boundary profile for distance measurement.If the steepest part is a point of corresponding channel boundary profile, distance measurement is carried out with reference to height direction at this point.If the steepest part is the straight area with constant inclination of corresponding channel boundary profile, distance measurement is carried out with reference to height direction at the center of this straight area.

[0019] According to an advantageous embodiment, it can be provided that the average inlet region cross-sectional area is formed by dividing the inlet region volume available for flow of the temperature control medium by the inlet region length, and / or the average outlet region cross-sectional area is formed by dividing the outlet region volume available for flow of the temperature control medium by the outlet region length. The relationship between volume and length provides an average flowable cross-sectional area, which simplifies the comparison of the flowable cross-sectional areas in the inlet region and in the outlet region.

[0020] According to an advantageous embodiment, it can be provided that the inlet region length is formed by the sum of the segment lengths of all channel segments located in the inlet region. Additionally or alternatively, it can be provided that the outlet region length is formed by the sum of the segment lengths of all channel segments located in the outlet region. This allows for simple and precise determination of the inlet region length and the outlet region length.

[0021] According to an advantageous embodiment, it can be provided that the average inlet region cross-sectional area is at least 50% larger than the average outlet region cross-sectional area. Studies by the applicant have shown that this improves the uniformity of the heat transfer.

[0022] Advantageously, in the inlet region, the average flowable cross-sectional area can increase from the inlet to the connection region. In the outlet region, the flowable cross-sectional area can preferably decrease from the connection region to the outlet connection. In the connection region, the flowable cross-sectional area can preferably decrease from the inlet-side transition to the outlet-side transition.

[0023] A channel system extends within a plate body in a temperature control zone. The present application is based on a heat transfer plate for temperature control of at least one electrical and / or electronic component using a liquid temperature control medium. The heat transfer plate comprises a plate body with a plate surface for heat transfer coupling with the corresponding component to be temperature controlled, and a circumferential plate edge. The plate body comprises at least one temperature control zone within the plate edge. The temperature control zone comprises an inlet with at least one inlet connection formed on the plate body for supplying the temperature control medium, an outlet with at least one outlet connection formed on the plate body for discharging the temperature control medium, and a channel system formed in the plate body for conducting the temperature control medium, the channel system fluidically connecting the inlet and the outlet.

[0024] According to an advantageous embodiment, it can be provided that the average inlet region cross-sectional area is in the range of 70% to 600%, preferably in the range of 100% to 400%, of the average outlet region cross-sectional area, inclusive. It has been shown that within these ranges, a particularly uniform heat transfer over the total length of the channel system can be achieved.

[0025] According to an advantageous embodiment, it can be provided that the average connection region cross-sectional area through which the temperature control medium can flow in the connection region is smaller than the average inlet region cross-sectional area and larger than the average outlet region cross-sectional area. The concept of reducing the cross-sectional area for increasing the flow velocity and improving the heat transfer is also implemented in the connection region.

[0026] According to an advantageous embodiment, it can be provided that the average connection region cross-sectional area is formed by the connection region volume available for flow of the temperature control medium in the connection region divided by the connection region length extending from the inlet region to the outlet region. The volume relative to the length provides easily comparable cross-sectional areas.

[0027] According to an advantageous embodiment, it can be provided that the connecting region length is formed by the sum of the segment lengths of all channel segments located in the connecting region. This also simplifies the precise determination of the connecting region length.

[0028] According to an advantageous embodiment, it can be provided that the channel system is configured so that it has a lower heat transfer coefficient in the inlet region than in the outlet region and / or than in the connecting region. This makes it possible to compensate for the larger volume flow in the inlet region in order to homogenize the heat transfer performance.

[0029] According to one advantageous embodiment, the channel system can include multiple channels in the inlet region and / or the outlet region, through which the temperature control medium can flow in parallel. This number of channels makes it particularly easy to vary the cross-sectional area available for flow. Advantageously, a configuration is one in which the number of channels in the outlet region is between 20% and 70% of the number of channels in the inlet region. In other words, fewer channels are arranged in the outlet region than in the inlet region. In particular, the collecting channel is located in the outlet region, while the distribution channel and, at least partially, the connecting channel are located in the inlet region. The collecting channel, distribution channel, and connecting channel will be explained in detail later.

[0030] According to a preferred embodiment, the corresponding channel system can be equipped with multiple distribution channels, multiple connecting channels, and multiple collecting channels, wherein the distribution channels are fluidically connected to the inlet and branch off or branch into the connecting channels, while the connecting channels open into the collecting channels, and the collecting channels are fluidically connected to the outlet. Furthermore, the channel system defines outer distribution channels and outer collecting channels, which are connected to each other via multiple connecting channels and are arranged relatively close to the zone edges of the corresponding temperature control zones or the plate edges of the plate body. This can occur in particular when the zone edges coincide with the plate edges, preferably when the plate body has only a single temperature control zone. Furthermore, the channel system forms at least one inner distribution channel and at least one inner collecting channel, which are connected to each other via multiple connecting channels and are located further from the zone edges or the plate edges than the outer distribution channels and the outer collecting channels. This structural approach achieves uniform flow through the outer zone segments or plate segments, which are adjacent to the zone edges or plate edges and in which the outer distribution channels and outer collecting channels, as well as the corresponding connecting channels, and the inner plate segments, which are arranged relatively far from the zone edges or plate edges and in which the inner distribution channels, inner collecting channels, and the corresponding connecting channels, extend. It can also be advantageously provided that the inner collecting channels and the outer collecting channels have approximately the same channel length, relative to the flow direction of the temperature control medium. This allows the pressure drop in the inner collecting channels, which is associated with the channel length, to be as large as possible as in the outer collecting channels. This also achieves approximately the same temperature changes in the inner and outer collecting channels. This measure significantly facilitates uniform flow through the channels in the inner and outer plate segments, thereby facilitating uniform temperature control.

[0031] In more detail, the channel system can have at least two distribution channels, which are fluidically connected to the inlet and which branch off into a plurality of straight connecting channels, through which the temperature control medium can flow in parallel and, in particular, extend parallel to one another. Furthermore, the channel system can have at least two collecting channels, which are fluidically connected to the outlet and into which a plurality of connecting channels of the connecting channels open.

[0032] In the case of a straight channel section, the effective length can be formed by the distance from the inlet to the outlet of the straight channel section. In the case of a channel section corrugated transversely to the main flow direction, the effective length can be formed by the distance from the inlet to the outlet of the channel section corrugated transversely to the main flow direction, measured in the main flow direction. or loop The channel section has three straight channel sections and two 180° arc-shaped channel sections connecting two of the straight channel sections. In the case of such a curved or annular channel section, the effective length can be formed by the distance from the inlet of the first straight channel section to the outlet of the third straight channel section. The first straight channel section is connected to the second straight channel section via the first arc-shaped channel section, and the third straight channel section is connected to the second straight channel section via the second arc-shaped channel section.

[0033] In the case of a channel section having two straight channel sections and a 180° curved channel section connecting the two straight channel sections, a relatively long channel length results from the inlet of one straight channel section to the outlet of the other straight channel section. Such long bends or loops can be used in conventional channel systems to compensate for the length between the inner and outer paths. In particular, they can achieve very long paths. The long path length also increases the average flow path of the channel system, or the total length of the channel system, so that the average flow path or the total length of the channel system can be slightly more than 50% longer than the longer of the two shortest paths or shortest routes. This is especially true when such a long loop is arranged between two channel boundary contours so that it does not enlarge the corresponding shortest path or shortest route on the corresponding channel boundary contour. In the heat transfer plate according to the present application, such long bends or loops are eliminated by providing that the average flow path or the total length of the channel system is at most 50% longer than the longer shortest path or shortest route.

[0034] Because deep-profile channels can achieve the same output as flatter, unprofiled channels with lower pressure losses, the cross-sectional area toward the outlet is preferably reduced by reducing the number of parallel channels or by reducing the channel width. Both methods result in a reduction in the overall width of the plate surface area flushed by the parallel channels. However, to achieve particularly high-performance channels in areas with increased heat transfer requirements, a reduced channel height may also be useful to achieve an additional reduction in the total flowable cross-sectional area.

[0035] The flowable cross-sectional area of ​​corresponding passage is obtained basically by the passage height measured perpendicular to the plate surface and the passage width measured transversely to the passage height. The cross-sectional area to be considered here extends perpendicular to the neutral fiber (neutralen Faser) or the center line of the corresponding passage. In the case of a passage with a lateral channel boundary that extends straight basically, the center line is corresponding to the center between the lateral channel boundaries. But if there is no straight lateral channel boundary, the obtaining of the center line and the obtaining of the cross-sectional area to be considered are more complicated. In principle, flow simulation can be used for determining the center line and thereby for determining the flowable cross-sectional area to be considered.

[0036] According to an advantageous embodiment, the channel system can include an external path formed by one of the distribution channels, one of the connecting channels, and one of the collecting channels, and extending along the zone edge of the temperature control zone. The external path is up to 30% longer than the shortest connecting route from the inlet to the zone edge, along the zone edge, and along the external path, extending from the zone edge to the outlet. Typically, this external path can form the longest path within the corresponding temperature control zone. The measures proposed here ensure that the longest path is as short as possible, i.e., up to 30% longer than the shortest possible path along the zone edge for connecting the inlet to the outlet. This simplifies the assimilation of all other paths to the external path in terms of heat transfer performance, which facilitates the desired homogenization.

[0037] The channel system can have multiple paths, each of which conducts the temperature control medium from the inlet through one of the distribution channels, one of the connecting channels, and one of the collecting channels to the outlet, and each having a path length. These paths can have different path lengths. The path with the longest path length defines the longest path. In another advantageous embodiment, each path whose path length is less than 50%, particularly less than 60%, and preferably less than 75% of the path length of the longest path can be formed into a short path. A preferred configuration is one in which the sum of the minimum flowable cross-sectional areas of all short paths is less than 40%, particularly less than 20%, and preferably less than 10% of the sum of the flowable cross-sectional areas of all other paths. Here, "all other paths" necessarily includes at least the longest path and, if any, any additional paths whose path length is greater than 50%, particularly greater than 60%, and preferably greater than 75% of the path length of the longest path. These additional paths can also be understood as long paths. If there are two or more paths with the same path length that is longer or greater than the path lengths of all other paths, one of the paths can form the longest path, while the other paths each form the long path or one of the other paths.

[0038] Suitably, the distribution channel can form at least one inner distribution channel and one outer distribution channel, wherein the outer distribution channel extends directly adjacent to the zone edge or the plate edge and thus extends closer to the zone edge or the plate edge than the corresponding inner distribution channel, in particular than the inner distribution channel directly adjacent to the outer distribution channel. Similarly, the collecting channel forms at least one inner collecting channel and one outer collecting channel, wherein the outer collecting channel extends directly adjacent to the zone edge or the plate edge and thus extends closer to the zone edge or the plate edge than the corresponding inner collecting channel, in particular than the inner collecting channel directly adjacent to the outer collecting channel. At least two connecting channels branching off from the outer distribution channel lead to the outer collecting channel. At least two connecting channels branching off from the inner distribution channel lead to the inner collecting channel. The measures described simplify the homogenization of the channel system on the surface of the corresponding temperature control zone.

[0039] The inner collecting channel has a channel length along the flow direction of the temperature control medium. The outer collecting channel has a channel length along the flow direction of the temperature control medium. It can be advantageously provided that the inner and outer collecting channels extend in the plate body such that the channel length of the inner collecting channel is at least 75% of the channel length of the outer collecting channel. Thus, the inner collecting channel is not shorter than, or not significantly shorter than, the outer collecting channel, which facilitates the desired uniformity of the heat transfer performance.

[0040] An embodiment is advantageous in which the channel length of the inner collecting channel is at least 80%, preferably at least 85%, in particular at least 90% of the channel length of the outer collecting channel. The inner collecting channel and the outer collecting channel thus have essentially the same channel length.

[0041] The optional parallel alignment of the connecting channels enables a temperature control that is as uniform as possible for the affected area of ​​the plate body.

[0042] Preferred is the following embodiment, in which, in particular, unlike the outer collecting channel, the inner collecting channel has a bend section and / or a meander section for increasing the channel length of the inner collecting channel. Because the inner collecting channel is far away from the plate edge within the plate body, it cannot obtain the same length as the outer collecting channel by a straight channel section. This can be compensated by integrating a meander section or a bend section. The bend section here represents a detour compared to a direct or straight connection. Here, the bend section can have three straight longitudinal sections and two curved sections. The three longitudinal sections form a first, second and third longitudinal section, extending parallel to each other and arranged side by side transversely to their longitudinal direction. The two curved sections form a first and a second curved section and each produce a 180° flow turn. The first longitudinal section has an inlet of the bend section and is connected to the second longitudinal section via the first curved section. The second longitudinal section is connected to the third longitudinal section via the second curved section. The third longitudinal section has an outlet of the bend section. Alternatively, the bend section can be configured to include two straight channel sections, one 180° curved channel section, and two 90° curved channel sections. The 180° curved section connects the two straight channel sections. A 90° curved section connects the inlet of the bend section to the first straight channel section. Another 90° curved section connects the second straight channel section to the outlet of the bend section.

[0043] A meandering section represents at least four directly successive arc sections, which form a 90° arc of the inlet with the meandering section, a 90° arc of the outlet with the meandering section, and two or more 180° arcs, which connect the 90° arc on the inlet side with the 90° arc on the outlet side.

[0044] According to another embodiment, the inner and outer collecting channels can each have at least two longitudinal sections, wherein the inner and outer collecting channels extend parallel to adjacent longitudinal sections of the zone edge or plate edge. This results in a temperature control of the plate body that is as uniform and uniform as possible along the plate edge.

[0045] In another embodiment, it can be provided that at least one connecting channel branching off from the inner distribution channel opens into the outer collecting channel. Alternatively, it can also be provided that at least one connecting channel branching off from the outer distribution channel opens into the inner collecting channel. This further improves the uniformity of temperature control. Clearly, in this embodiment, at least one of the two distribution channels branches off into at least three connecting channels.

[0046] Advantageously, the connecting channels can extend as parallel as possible to the longitudinal sections of the zone edges or plate edges. By aligning the connecting channels parallel to the longitudinal sections of the zone edges or plate edges, a particularly compact design of the heat transfer plate and a uniform temperature distribution up to the zone edges or plate edges is achieved.

[0047] Suitably, the heat transfer plate or its plate body extends in the plate surface. Preferably, the heat transfer plate or its plate body has a rectangular cross section in the plate surface. Accordingly, the plate edge has two longer straight longitudinal sections and two shorter straight longitudinal sections.

[0048] In a further advantageous embodiment, the inner collecting channels and the outer collecting channels can each have a longitudinal section extending parallel to the connecting channel. This also contributes to a compact design of the heat transfer plate, wherein a larger volume is available within the plate body for the channels of the channel system.

[0049] According to a particularly advantageous embodiment, the channels and / or collecting channels in the outlet region can have a greater heat transfer coefficient than the channels and / or distribution channels and / or connecting channels in the inlet region. This embodiment is based on the idea that the heat transfer capacity depends on the temperature difference between the temperature control medium and the plate body, on the one hand, and on the heat transfer coefficient between the temperature control medium and the plate body, on the other. The temperature difference between the temperature control medium and the plate body is forced to decrease in the channel system along the route from the inlet to the outlet. An increase in the heat transfer coefficient in the region of the collecting channels can compensate for this, thereby uniformizing the heat transfer across the entire heat transfer plate. In addition to the composition of the temperature control medium and the temperature difference between the temperature control medium and the plate body, the heat transfer coefficient takes into account parameters that contribute to the heat transfer between the temperature control medium and the plate body. Parameters that can be taken into account by the heat transfer coefficient include, for example, the current flow velocity of the temperature control medium in the corresponding channel and / or the flow characteristics of the temperature control medium in the corresponding channel (e.g., the flow can be laminar or more or less turbulent), and / or the surface area in contact with the temperature control medium available for heat transfer, and / or the pressure prevailing in the temperature control medium. Another parameter that can be taken into account by the heat transfer coefficient is the thermal conductivity of the materials involved. Since the material of the plate body is advantageously the same in all channels, this material difference can, for example, lie in the heat-conducting elements that can be inserted into or formed in the channels.

[0050] By increasing the heat transfer coefficient in the region of the collecting channels relative to the connecting channels, the lower temperature of the temperature-control medium in the collecting channels relative to the connecting channels can be compensated, ultimately achieving a largely identical heat transfer capacity in the region of the connecting channels, on the one hand, and in the region of the collecting channels, on the other. In this embodiment, the heat transfer in the region of the connecting channels is primarily based on the higher temperature difference between the temperature-control medium and the plate body. In contrast, the heat transfer in the region of the collecting channels is primarily based on the increased heat transfer coefficient.

[0051] The flowable cross-sectional area of ​​the corresponding collecting channel can advantageously be smaller than the sum of the flowable cross-sectional areas of the connecting channels leading thereto. This allows for a higher flow velocity in the collecting channel than in the connecting channels. Furthermore, this increases the pressure of the temperature control medium within the collecting channel. These measures improve heat transfer in the region of the collecting channel.

[0052] Another embodiment provides that the flow resistance in the corresponding collecting channel is greater than the flow resistance of the connecting channel leading thereto. This higher flow resistance modifies the flow of the temperature control medium. On the one hand, this increases the pressure of the temperature control medium. On the other hand, it also increases the turbulence of the flow. These measures improve heat transfer in the region of the collecting channel.

[0053] According to another embodiment, it can be provided that heat-conducting elements are arranged in the collecting channels, in particular separately from the connecting channels leading thereto, which improve the heat transfer between the temperature control medium and the plate body. These measures improve the heat transfer in the region of the collecting channels.

[0054] If heat-conducting elements are arranged both in the collecting channel and in the connecting channel, an advantageous embodiment can provide that the heat-conducting elements arranged in the collecting channel have a greater number and / or a greater arrangement density and / or a larger surface area exposed to the temperature control medium and / or a higher thermal conductivity than the heat-conducting elements arranged in the connecting channel. These measures also contribute individually and cumulatively, as well as in any combination, to heat transfer in the collecting channel.

[0055] Thus, in particular, it can be provided that the number of connecting channels is at least twice or more than twice the number of collecting channels. By way of example, a configuration is conceivable in which six connecting channels and only two collecting channels are provided. A configuration is also conceivable in which eight connecting channels and three collecting channels are provided.

[0056] In another embodiment, the inlet and outlet can be arranged adjacent to each other on the plate body in the same end section of the plate body, preferably at one longitudinal end of the plate body. This creates a U-shaped channel system within the corresponding temperature control zone. Advantageously, the outer distribution channel, the connecting channel directly adjacent to the plate edge, and the outer collecting channel can form an edge channel within the channel system that runs along the plate edge, fluidically connecting the inlet and outlet and extending along the plate edge. This contributes to a more uniform distribution of heat transfer power along the plate body. Alternatively, embodiments are also conceivable in which the inlet and outlet are located at longitudinal ends of the plate body facing away from each other.

[0057] In an alternative embodiment, the inlet and outlet can be arranged on the plate body at end sections of the plate body facing away from each other. This allows for an I-arrangement of the channel system within the corresponding temperature control zone, thereby facilitating a symmetrical structure of the channel system.

[0058] In another embodiment, it can be provided that the channel system is formed by a single meandering channel connecting the inlet and the outlet. This also contributes to a simple structure.

[0059] Particularly advantageous are embodiments in which the channels have a plurality of individual, different, and asymmetrically distributed profiles, through which a temperature control medium can flow, for flow guidance and heat transfer. This allows, in particular, the implementation of a configuration that is also disclosed in DE 10 2023118 768, the content of which is hereby incorporated by explicit reference into the present application.

[0060] In another embodiment, it can be provided that the contours formed in the outlet region differ from the contours arranged in the inlet region by a greater arrangement density and / or a smaller distance between them and / or smaller dimensions, thereby assisting the desired homogenization.

[0061] According to a particularly advantageous embodiment, the plate body can have at least two such temperature control zones within the plate edge, each having an inlet formed on the plate body for supplying a temperature control medium, an outlet formed on the plate body for discharging the temperature control medium, and a channel system formed in the plate body for conducting the temperature control medium, the channel system fluidically connecting the inlet and the outlet. The plate body thus has at least two separate inlets, at least two separate outlets, and at least two separate channel systems. It can advantageously be provided that the at least two temperature control zones are identical, mirror-symmetrical, or differently configured with respect to the corresponding inlets, corresponding outlets, and corresponding channel systems.

[0062] Likewise advantageous is a configuration in which the plate body has only one single temperature control zone, wherein the zone edge can in particular coincide with the plate edge.

[0063] The use of the aforementioned heat transfer plate according to the present application is characterized in that the heat transfer plate is used to control the temperature of battery cells of a traction battery of a battery-powered vehicle. The heat transfer plate proposed here allows for a relatively large number of individual battery cells to be controlled as uniformly as possible, thereby preventing overheating or overcooling of the individual battery cells in the traction battery.

[0064] The arrangement of a traction battery on a heat transfer plate of the aforementioned type according to the present application is characterized in that the traction battery is arranged on the plate surface in a contact region and is heat-transferably coupled to the heat transfer plate. In particular, the dimensions of the traction battery thus define the dimensions of the contact region within the channel system. In other words, the distribution region and the collection region are each located outside the traction battery, while the contact region is covered by the traction battery.

[0065] The arrangement of the traction battery on the heat transfer plate corresponds to a unit comprising the traction battery and the heat transfer plate, wherein the traction battery is arranged on the plate surface in the contact region and is coupled to the heat transfer plate in a heat-transferring manner.

[0066] The traction battery can be arranged directly on the heat transfer plate as a single-piece assembly. Traction batteries typically have multiple battery cells. In principle, these battery cells can be arranged directly on the heat transfer plate. It is also conceivable for the traction battery to have multiple battery modules, each of which has multiple battery cells. In this case, the battery modules can be arranged directly on the heat transfer plate.

[0067] Further important features and advantages of the application are apparent from the dependent claims, the drawings and the corresponding figure description based on the drawings.

[0068] It is understood that the features described above and those explained below can be used not only in the respectively specified combination but also in other combinations or alone without departing from the scope of the invention defined by the claims. The individually labeled components mentioned above and below of a superordinate unit, such as an apparatus, device, or arrangement, can form individual components or parts of this unit or integrated regions or sections of this unit, even if shown differently in the drawings.

[0069] Preferred exemplary embodiments of the present application are shown in the drawings and are explained in detail in the following description, wherein identical reference numerals refer to identical or similar or functionally identical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The figure shows in schematic form:

[0071] Figures 1 to 14 shows respectively a top view of a heat transfer plate in different embodiments, with the plate body shown transparently,

[0072] Figures 15 to 17 A sectional view in the region of a channel is shown in each case for different channel boundary contours. DETAILED DESCRIPTION

[0073] Corresponding to Figures 1 to 14 A heat transfer plate 1 for temperature control of at least one electrical and / or electronic component via a liquid temperature control medium comprises a plate body 2 having a plate surface 3 for heat transfer coupling with the corresponding component to be temperature controlled. The plate surface 3 can be located on the top side of the plate facing the viewer in the figure. Additionally or alternatively, the plate surface 3 can be located on the bottom side of the plate facing away from the viewer in the figure. As a representative example, the component to be temperature controlled is located only on the top side. Figure 14It is shown in dashed lines and designated 63. In a preferred application of the heat transfer plate 1 presented here, the component 63 to be temperature-controlled can be a traction battery 64, which is used, for example, in a battery-powered vehicle. Figure 14 Thus, the arrangement 65 of the traction battery 64 on the heat transfer plate 1 is shown. Further below, in combination with Figure 14 This arrangement 65 will be described in detail.

[0074] Here, the plate body 2 is configured flat and planar and has a rectangular geometry, wherein in principle other geometries of the plate body 2 are also possible. The plate body 2 has a circumferential plate edge 4 and at least one temperature control zone 30 within the plate edge 4. Figures 1 to 7 as well as Figures 10 to 14 In the example of , the plate body 2 has only one temperature control zone 30. Figure 8 and Figure 9 In the example shown, the plate body 2 has two such temperature control zones 30. Obviously, in other embodiments, the plate body 2 can also have three or more such temperature control zones 30. The features explained below for one temperature control zone 30 can be implemented equally in all temperature control zones 30 of the plate body 2. Each temperature control zone 30 is delimited outwardly from the plate body 2 by a zone edge 33. Figures 1 to 7 and Figures 10 to 14 In the example of , the zone edge 33 coincides with the plate edge 4. Figure 8 and Figure 9 In the example of , the corresponding zone edge 33 partially overlaps with the plate edge 4. In addition, a part of the zone edge 33 of one temperature control zone 30 simultaneously constitutes a part of the zone edge 33 of another temperature control zone 30.

[0075] Each temperature control zone 30 has an inlet IN formed on the plate body 2 and an outlet OUT formed on the plate body 2, wherein the inlet has at least one inlet connection 5 for supplying a temperature control medium and the outlet has at least one outlet connection 6 for discharging the temperature control medium. The supply and discharge of the temperature control medium are indicated by arrows. Purely by way of example, Figure 14 , an embodiment is shown in which the inlet IN has two inlet connections 5. In each temperature control zone 30, a channel system 7 is formed in the plate body 2, which serves to conduct the temperature control medium and fluidically connects the inlet IN to the outlet OUT.

[0076] according to Figures 1 to 4 as well as Figures 12 to 14In the example of FIG. 5 , the channel system 7 can have at least two distribution channels 8, which are fluidically connected to the inlet IN5 and branch into a plurality of straight connecting channels 9. These connecting channels 9 preferably extend parallel to each other. In addition, the channel system 7 has at least two collecting channels 10, which are fluidically connected to the outlet OUT and into which a plurality of connecting channels each of the connecting channels 9 leads.

[0077] In contrast, Figure 5 、 Figure 6 、 Figure 7 、 Figure 10 and Figure 11 A channel system 7 with only one channel 31, 32 is shown in each case. Figure 5 and Figure 6 In the example of FIG. 3 , the channel 31 has a U-shaped configuration, so the channel 31 may also be referred to as a U-channel 31. Here, the front section of the U-channel 31 extends away from the inlet IN5. Figure 5 and Figure 6 From the upper left to the upper right, the return area of ​​the U channel 31 extends to the outlet OUT. Figure 5 and Figure 6 From the lower right to the lower left. Figure 7 、 Figure 10 and Figure 11 In the example of FIG, the channel 32 has an I-shaped configuration, so the channel 32 may also be referred to as an I-channel 32. Figure 7 、 Figure 10 and Figure 11 In the example of FIG. 1 , the I channel 32 extends from the inlet IN to the outlet OUT with a plurality of turns or obstacles. Figure 7 The middle one extends from left to right. Figure 10 and Figure 11 The middle extends from top to bottom.

[0078] Figures 1 to 4 as well as Figures 12 to 14 The distribution channel 8 forms at least one inner distribution channel 8i and one outer distribution channel 8a. Here, the outer distribution channel 8a extends closer to the plate edge 4 or the zone edge 33 than the corresponding inner distribution channel 8i. The outer distribution channel 8a is directly adjacent to the plate edge 4, while the inner distribution channel 8i is indirectly adjacent to the plate edge 4. The collecting channel 10 forms an inner collecting channel 10i and an outer collecting channel 10a, wherein the outer collecting channel 10a extends closer to the plate edge 4 than the inner collecting channel 10i. At least two connecting channels 9 branching out from the outer distribution channel 8a lead into the outer collecting channel 10a at the channel starting point 11 of the outer collecting channel 10a. In Figure 1 、 Figure 2 、 Figure 4 and Figures 12 to 14 In the example shown, there are two outer or external connecting channels 9 arranged adjacent to the plate edge 4. Figure 3 In the example shown, there are three outer or external connecting channels 9 arranged adjacent to the plate edge 4. At least two connecting channels 9 branching from the corresponding inner distribution channel 8i open into the inner collecting channel 10i at the channel starting point 12 of the inner collecting channel 10i. Figure 1 、 Figure 2 、 Figure 4 and Figures 12 to 14 In the example of , two connecting channels 9 are involved, which are adjacent to the collecting channel 10. Figure 3 In the example shown in FIG. 1 , two inner collecting channels 10i are provided. Three connecting channels 9 adjacent to the three connecting channels 9 that open into the outer collecting channel 10a open into an inner collecting channel 10i adjacent to the outer collecting channel 10a. The remaining two connecting channels 9 adjacent to the inner collecting channel 10i open into another inner collecting channel 10i.

[0079] In the direction of flow 13 of the temperature control medium (indicated by arrows in the figure), each inner collecting channel 10i has a channel length (not specifically designated), which begins at the channel starting point 12 of the respective inner collecting channel 10i and ends at the outlet connection 6. In the direction of flow 13 of the temperature control medium, the outer collecting channel 10a has a channel length (not specifically designated), which begins at the channel starting point 11 of the outer collecting channel 10 and ends at the outlet connection 6. The inner collecting channels 10i and the outer collecting channels 10a extend in the plate body 2 such that the channel length of the inner collecting channels 10i is at least 75% of the channel length of the outer collecting channels 10a. The goal is for the inner collecting channels 10i to have approximately the same channel length as the outer collecting channels 10a. Therefore, the channel length of the corresponding inner collecting channels 10i can also be at least 80%, at least 85%, at least 90%, at least 95%, or approximately 100% of the channel length of the outer collecting channels 10a.

[0080] exist Figure 1 、 Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In the example of , the inner collecting channel 10i can have a bend section 14 which increases the channel length of the inner collecting channel 10i. Figure 3 In the example of , the corresponding inner collecting channel 10 i has a meandering section 15 .

[0081] The corresponding inner collecting channel 10i and outer collecting channel 10a each have two longitudinal sections 16, 17, 18, 19, in which they extend parallel to the adjacent longitudinal sections 20, 21 of the plate edge 4. Figures 1 to 4 In the embodiment, the outer collecting channel 10a has a longitudinal section 16 at the top, which extends parallel to the upper longitudinal section 20 of the plate edge 4. Figures 1 to 4 、 Figure 13 and Figure 14 In FIG, the outer collecting channel 10a has a longitudinal section 19 on the left, which extends parallel to the adjacent left longitudinal section 21 of the plate edge 4. Figures 1 to 4 、 Figure 13 and Figure 14 In FIG, the corresponding inner collecting channel 10 i has at the top a longitudinal section 17 which extends parallel to the upper longitudinal section 20 of the plate edge 4 and at the left a longitudinal section 18 which extends parallel to the left longitudinal section 21 of the plate edge 4 .

[0082] exist Figure 1 、 Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In the example of FIG. 1 , a connecting channel 9 branching from one of the inner distribution channels 8i leads to the outer collecting channel 10a. Figure 1 、 Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In this example, the third connecting channel 9 from the bottom is involved. This third connecting channel 9 branches off at the channel end 22 of an inner distribution channel 8i and opens into the outer collecting channel 10a at its channel starting point 11. The other connecting channels 9 branching off at the channel end 22 of the distribution channel 8i open into the inner collecting channel 10i at the channel starting point 12.

[0083] Since the plate body 2 is configured as a rectangle here, the plate edge 4 has two longer longitudinal sections 20 and 23, which are Figures 1 to 7 、 Figure 13 and Figure 14 and two shorter longitudinal sections 21 and 24, which extend horizontally; Figures 1 to 7 、 Figure 13 and Figure 14 The longer longitudinal sections 20 and 23 extend parallel to one another and perpendicular to the two shorter longitudinal sections 21, 24, which themselves extend parallel to one another. Here, the longer longitudinal sections 20, 23 extend parallel to the connecting channel 9. Correspondingly, the longitudinal sections 16 and 17 of the collecting channel 10 also extend parallel to the connecting channel 9. The same applies to Figure 8 and Figure 9 , in which the plate body 2 has two temperature control zones 30 , wherein the longitudinal sections relate to the rectangular temperature control zones 30 or to their zone edges 33 .

[0084] According to a preferred embodiment, the channel system 7 is configured so that the distribution channel 8 has a smaller heat transfer coefficient than the collecting channel 10 and / or the connecting channel 9. In particular, it can be provided that the collecting channel 10 has a larger heat transfer coefficient than the connecting channel 9. This can be achieved by various measures. Here, the measures mentioned later can be implemented individually, cumulatively or in any combination. For example, the flowable cross-sectional area of ​​the corresponding collecting channel 10 can be smaller than the sum of the flowable cross-sectional areas of the connecting channels 9 leading thereto. Because Figures 1 to 3 In the case of the plate body 2, the width of the corresponding channel measured transversely to the air flow direction 13 in the plane of the plate body 2 is essentially constant, so that the flowable cross-sectional area of ​​the corresponding channel is determined in particular by the channel height measured perpendicularly to the plane of the plate body 2. In addition, the flowable cross-sectional area is reduced by heat-conducting elements arranged in the channel if necessary. Figure 1 and Figure 2 In the example of , each of the three connecting channels 9 leads to a corresponding inner collecting channel 10i. Figure 3 In the example shown, two connecting channels 9 open into one inner collecting channel 10i, while three connecting channels 9 each open into another inner collecting channel 10i and an outer collecting channel 10a. This allows the flow cross-sectional area of ​​the corresponding collecting channel 10 to be relatively easily configured to be smaller than the sum of the flow cross-sectional areas of the connecting channels 9 opening therein. Additionally or alternatively, it can be provided that the flow resistance in the corresponding collecting channel 10 is greater than the flow resistance of the connecting channels 9 opening therein. Additionally or alternatively, heat-conducting elements 25 can be arranged or constructed in the collecting channel 10, which are indicated by cross-hatching in the figure. The heat-conducting elements 25 are configured so as to enhance heat transfer between the temperature control medium and the plate body 2. To this end, the heat-conducting elements 25 can be made of a heat-conducting material, preferably metal, and have a surface that receives the temperature control medium and is preferably in direct contact with the plate body 2. The heat-conducting elements 25 can be configured as spoilers, ribs, or fins, or a combination thereof. The heat-conducting elements 25 can be separate components inserted into the collecting channels 10, or they can be integrally or monolithically formed on the plate body. Alternatively, the connecting channels 9 can be provided without such heat-conducting elements 25. However, if heat-conducting elements 25 are arranged in both the collecting channels 10 and the connecting channels 9, it is advantageous to provide that the heat-conducting elements 25 arranged in the collecting channels 10 have a greater number and / or a higher arrangement density and / or a larger surface area exposed to the temperature control medium and / or a higher thermal conductivity than the heat-conducting elements arranged in the connecting channels 9.

[0085] The channel system 7 has from the inlet IN to the outlet OUT only Figure 10 、 Figure 11 、 Figure 13 and Figure 14 The total length of the channel system is 41. The channel system 7 has an entry area 26, which is located at Figures 1 to 3 Indicated by a dotted line and Figures 5 to 7 The channel system 7 also has an outlet region 27, which is indicated in brackets in FIG. 4 , and the inlet region extends over 20% to 40%, preferably 25% to 35%, of the total channel system length 41. Figures 1 to 3 Indicated by a dotted line and Figures 5 to 7 The inlet region 26 is indicated in brackets, and the outlet region 27 extends over 20% to 40%, preferably 25% to 35%, of the total channel system length 41. A connecting region 34 of the channel system 7 connects the inlet region 26 to the outlet region 27.

[0086] The number of channels in the outlet region 27 is in the range of 20% to 70% of the number of channels in the inlet region 26. Figure 1 、 Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In the example of , there are two channels, namely two collecting channels 10 , in each case in the outlet region 27 , and six connecting channels 9 in the inlet region 26 . Figure 3 In the example of FIG, three collecting channels 10 are arranged in the discharge region 27, while there are eight connecting channels 9 in the inlet region 26. In particular, the number of connecting channels 9 is at least twice or more than twice the number of collecting channels 10. Figure 1 、 Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In the six connecting channels 9, two collecting channels 10 meet. Figure 3 In the example of FIG. 8 , eight connecting channels 9 meet three collecting channels 10 .

[0087] exist Figures 1 to 6 and Figures 12 to 14 In the preferred embodiment shown, the inlet IN and the outlet OUT are arranged next to each other on the plate body 2, and more precisely in the region of one longitudinal end of the plate body 2 or in the vicinity of the plate edge 4. This results in a U-shaped configuration. The outer distribution channel 8a, the connecting channel 9 adjacent to the plate edge 4 or the zone edge 33, i.e. Figures 1 to 3 The lowermost connecting channel 9 in the channel system 7 and the outer collecting channel 10 a form an edge channel 28 which runs along the plate edge 4 and fluidically connects the inlet IN and the outlet OUT.

[0088] With Figure 1 Compared to the example in Figure 2 、 Figure 4 、 Figure 13and Figure 14 In the example of , the bend in the bend section 14 is more strongly shaped or longer. Figure 2 、 Figure 4 、 Figure 13 and Figure 14 In the example of FIG. 8 , this is also accompanied by a shortening of the connecting channel 9 branching off from the external distribution channel 8 a.

[0089] exist Figure 3 In the example shown, two inner collecting channels 10i are provided. Three connecting channels 9 lead to one inner collecting channel 10i. Two connecting channels 9 lead to another inner collecting channel 10i. Three connecting channels 9 lead to an outer collecting channel 10a. The outer collecting channel 10a and the adjacent inner collecting channel 10i are connected in a direction facing the plate edge 4. Figure 3 The region of the left-center longitudinal section 21 comprises two longitudinal sections 18, 19 extending parallel to the longitudinal section 21 of the plate edge 4. For this purpose, the respective collecting channel 10 comprises a parallel channel 29 in this region, which branches off and opens again into the respective collecting channel 10.

[0090] In the heat transfer plate 1 proposed here, the corresponding channel system 7 is configured such that the flowable cross-sectional area of ​​the channel system 7 is larger in the inlet region 26 leading from the inlet IN than in the outlet region 27 leading to the outlet OUT. In order to homogenize the heat transfer performance along the channel system 7, the reduced temperature differences in the outlet region 27 can be largely compensated by a higher flow velocity in the outlet region 27.

[0091] Preferably, the channel system 7 has a total channel system length 41 from the inlet IN to the outlet OUT, wherein the channel system 7 has an inlet region 26, which extends over approximately 1 / 3 of the total channel system length 41; an outlet region 27, which extends over approximately 1 / 3 of the total channel system length 41; and a connecting region 34, which connects the inlet region 26 to the outlet region 27 and can likewise be approximately 1 / 3 of the total channel system length 41. It can also be provided that the flowable cross-sectional area of ​​the inlet region 26 at its transition 35 to the connecting region 34 is at least 50% larger than the flowable cross-sectional area of ​​the outlet region 27 at its transition 36 to the connecting region 34.

[0092] Expediently, the flow cross-section can increase starting from the inlet IN and then substantially only decrease along the inlet region 26 , the connecting region 34 and the outlet region 27 to the outlet OUT27 .

[0093] Advantageously, it can be provided that the flowable cross-sectional area of ​​the inlet region 26 at its transition 35 to the connecting region 34 is in a range of 70% to 600%, preferably in a range of 100% to 400%, of the flowable cross-sectional area of ​​the outlet region 27 at its transition 36 to the connecting region 34, inclusive.

[0094] According to one embodiment, it can also be provided that the average flowable cross-sectional area of ​​the channels 8, 9, 31, 32 extending in the inlet region 26 is at least 50% greater than the average flowable cross-sectional area of ​​the channels 9, 10, 31, 32 extending in the outlet region 27. In particular, it can be provided that the average flowable cross-sectional area of ​​the channels 8, 9, 31, 32 extending in the inlet region 26 is in the range of 70% to 600%, preferably in the range of 100% to 400%, of the average flowable cross-sectional area of ​​the channels 9, 10, 31, 32 extending in the outlet region 27.

[0095] Optionally, it can be provided that the average flowable cross-sectional areas of the channels 8, 9, 31, 32 of the inlet region 26 are averaged over the length of the inlet region 26 and / or the average flowable cross-sectional areas of the channels 9, 10, 31, 32 of the outlet region 27 are averaged over the length of the outlet region 27. In particular, it can be provided that the average flowable cross-sectional areas of the channels 8, 9, 31, 32 of the inlet region 26 are averaged over the effective length of the inlet region 26 and / or the average flowable cross-sectional areas of the channels 9, 10, 31, 32 of the outlet region 27 are averaged over the effective length of the outlet region 27.

[0096] In the case of a straight channel section, the effective length can be formed by the distance from the inlet to the outlet of the straight channel section. In the case of a channel section corrugated transversely to the main flow direction 42, the effective length can be formed by the distance from the inlet to the outlet of the corrugated channel section transversely to the main flow direction 42, measured along the main flow direction 42. In the case of a meandering channel section having two straight channel sections, a 180° arc-shaped channel section connecting the two straight channel sections, and two 90° arc-shaped channel sections, the two 90° arc-shaped channel sections respectively connecting the corresponding straight channel section to the inlet and outlet of the meandering channel section, the effective length can be formed by the sum of the lengths of the two straight channel sections. A meandering channel section has three straight channel sections and two 180° arcuate channel sections connecting two of the straight channel sections to each other. In the case of this meandering channel section, the effective length can be formed by the distance from the inlet of the first straight channel section to the outlet of the third straight channel section. The first straight channel section is connected to the second straight channel section via the first arcuate channel section, and the third straight channel section is connected to the second straight channel section via the second arcuate channel section.

[0097] The flowable cross-sectional area of ​​the corresponding channel is essentially obtained by the channel height measured perpendicular to the plate surface and the channel width measured transversely to the channel height. The cross-sectional area to be considered here is perpendicular to the corresponding channel. Figure 7 、 Figure 10 、 Figure 11 、 Figure 13 and Figure 14 The neutral fiber or centerline 37 extends along the channel. If the channel has essentially straight lateral channel boundaries, the centerline 37 corresponds to half the distance between the lateral channel boundaries. However, if there are no straight lateral channel boundaries, determining the neutral centerline 37 and thus the cross-sectional area to be considered is relatively complex. In principle, the centerline 37 and thus the flowable cross-sectional area to be considered can be determined by taking into account the flow conditions.

[0098] The flowable cross-sectional area describes the static opening width available for the temperature control medium, i.e. the opening cross-sectional area obtained from the width and height after deducting projections, depressions and other contours. For each part of the channel system 7, the channel width is determined as the cross-sectional area of ​​the channel system 7. The flowable cross-sectional area of ​​the channel is the opening cross-sectional area available for the temperature control medium in the cross section. The channel length of the channel system or the channel length in the inlet area, in the connection area and in the outlet area is preferably the length of the center line 37 in the corresponding channel area. For the possibility of determining the total length 41 of the channel system, refer to the following. Figure 10 、 Figure 11 、 Figure 13 and Figure 14 It will be described in detail.

[0099] The channel system 7 can have an external path 38, which is used for Figures 1 to 14 All embodiments shown in the Figure 4 The outer path 38 is formed by one of the distribution channels 8, one of the connecting channels 9 and one of the collecting channels 10 and extends along the zone edge 33 of the temperature control zone 30. Here, the outer path 38 is typically Figure 4 The shortest connecting path 39, indicated by a dashed line, is at most 30% longer. Here, the shortest connecting path 39 extends directly, i.e., along the shortest path, from the inlet IN to the zone edge 33, along the zone edge 33 and along an external path 38, and from the zone edge 33 directly, i.e., along the shortest path, to the outlet OUT. Typically, this external path 38 can form the longest path within the corresponding temperature control zone 30. The measures presented here ensure that the longest path is as short as possible, i.e., at most 30% longer than the shortest possible path 39 along the zone edge 33 for connecting the inlet IN to the outlet OUT.

[0100] according to Figure 12 , the channel system 7 can have a plurality of paths 43, which respectively guide the temperature control medium from the inlet IN through one of the distribution channels 8, one of the connecting channels 9 and one of the collecting channels 10 to the outlet OUT and each have a path length. The paths 43 can have different path lengths. Figure 12 In the example shown, five paths 43 are provided, each having a parallel section 44 with multiple parallel channels (not specifically labeled) through which flows flow. The five paths 43 form a first path 431, a second path 432 shorter than the first path 431, a third path 433 shorter than the second path 432, a fourth path 434 shorter than the third path 433, and a fifth path 435 shorter than the fourth path 434. In the example shown, the parallel section 44 of the first path 431 varies in length from 93% to 100%. In the example shown, the parallel section 44 of the second path 432 varies in length from 63% to 67%. In the example shown, the parallel section 44 of the third path 433 varies in length from 51% to 59%. In the example shown, the parallel section 44 of the fourth path 434 varies in length from 38% to 46%. In the example shown, the parallel section 44 of the fifth path 435 has a length of approximately 33%. The percentage data here relate to the longest path 43 , which in the first path 431 is defined by the outermost channel in the parallel region 44 and is therefore determined as 100%.

[0101] The path 43 with the largest path length defines the longest path. Figure 12 In the example shown, first path 431 has the longest path length. In an advantageous embodiment, each path 43 whose path length is less than 50% (case A), in particular less than 60% (case B), and preferably less than 75% (case C) of the path length of longest path 431 forms a short path. In case A, fifth path 435 and fourth path 434 each form a short path 43. In case B, fifth path 435, fourth path 434, and third path 433 each form a short path 43. In case C, fifth path 435, fourth path 434, third path 433, and second path 432 each form a short path 43.

[0102] exist Figure 12 In the figure, a position is marked with a circle for each path 43, which is the minimum flowable cross-sectional area 45 within the corresponding path 43. In this example, it is marked on the downstream side of the corresponding parallel zone 44. The minimum flowable cross-sectional area 451 of the first path 431, the minimum flowable cross-sectional area 452 of the second path 432, the minimum flowable cross-sectional area 453 of the third path 433, the minimum flowable cross-sectional area 454 of the fourth path 434, and the minimum flowable cross-sectional area 455 of the fifth path 435 are shown.

[0103] Preferred is a configuration of the channel system 7 in which the sum of the minimum flowable cross-sectional areas 45 of all short paths 43 is less than 40%, in particular less than 20%, preferably less than 10% of the sum of the minimum flowable cross-sectional areas 45 of all other paths 43. In this case, "all other paths 43" includes at least the longest path 431 and (if present) every other path 43 that is not a short path 43.

[0104] In case A, the path length of the short path 43 is less than 50% of the path length of the longest path 431, and “all other paths 43” includes the longest path 431 and each additional path 43 whose path length is greater than 50% of the path length of the longest path 431, namely, the third path 433 and the second path 432. In case B, the path length of the short path 43 is less than 60% of the path length of the longest path 431, and all other paths 43 include each path 43 whose path length is greater than 60% of the path length of the longest path 431, namely, the second path 432. In case C, the path length of the short path 43 is less than 75% of the path length of the longest path 431, and the “other paths” include each path whose path length is greater than 75% of the path length of the longest path 431, i.e., there are no additional paths 43 other than the longest or first path 431.

[0105] The additional or further paths 43 may also be understood as long paths 43. If there are two or more paths 43 having the same path length that is longer or greater than the path length of all other paths 43, then one of the paths 43 may form the longest path 43, while one or more of the other paths 43 may each form a long path 43 or one of the additional paths 43.

[0106] exist Figures 1 to 6 and Figures 12 to 14 An example of a channel system 7 having a U configuration is shown in FIG. Figure 7 、 Figure 10 and Figure 11 A variant is shown in which the channel system 7 has an I configuration. In this case, the inlet IN and the outlet OUT are arranged on the plate body 2 at two end sections of the plate body 2 facing away from each other. Figures 1 to 4 and Figures 12 to 14 In the embodiment, the channel system 7 has a plurality of channels, namely a plurality of distribution channels 8, a plurality of connecting channels 9 and a plurality of collecting channels 10. In contrast, the channel system 7 has a plurality of channels, namely a plurality of distribution channels 8, a plurality of connecting channels 9 and a plurality of collecting channels 10. Figures 5 to 7 、 Figure 10 and Figure 11 There is only a single channel 31, 32 in each case. The channels 31, 32 can be configured in a meandering manner, ie have a meandering course, in order to connect the inlet IN to the outlet OUT.

[0107] exist Figure 5 and Figure 6 In the embodiment, the U channel 31 has a plurality of separate, different and asymmetrically distributed profiles 40 through which a temperature control medium can flow, for guiding the flow and transferring heat. Figure 5 In the example of Figure 6 In both embodiments, it is provided that the contours 40 formed in the outlet region 27 differ from the contours 40 arranged in the inlet region 26 by a greater arrangement density and / or by a smaller distance between them and / or by a smaller size.

[0108] Figures 1 to 7 and Figures 10 to 14 The configuration of the heat transfer plate 1 is shown in each case, in which the plate body 2 has only a single temperature control zone 30. In contrast, Figure 8 and Figure 9 Two examples of embodiments are shown in which the plate body 2 has two such temperature control zones 30 within the plate edge 4. The two temperature control zones 30 are located at the Figure 8 and Figure 9. The two temperature control zones 30 each have an inlet IN configured on the plate body 2 for supplying a temperature control medium, an outlet OUT configured on the plate body 2 for discharging the temperature control medium, and a channel system 7 configured in the plate body 2 for guiding the temperature control medium, the channel system fluidically connecting the inlet IN with the outlet OUT. The plate body 2 thus has two separate inlets IN, two separate outlets OUT, and two separate channel systems 7. It can now be advantageously provided that the two temperature control zones 30 are configured differently in terms of the corresponding inlets IN, the corresponding outlets OUT, and the corresponding channel systems 7. Figure 8 In the upper temperature adjustment zone 30 as in Figure 4 、 Figure 13 and Figure 14 The upper temperature control zone 30 is configured as shown in FIG, and the lower temperature control zone 30 is configured as shown in FIG. Figure 6 The temperature control zone 30 shown in FIG is configured as shown in FIG. Figure 9 In the upper temperature adjustment zone 30 as in Figure 7 、 Figure 10 and Figure 11 The upper temperature control zone 30 is configured as shown in FIG, and the lower temperature control zone 30 is configured as shown in FIG. Figure 6 The temperature control zone 30 shown in FIG.

[0109] according to Figures 1 to 14 The channel system 7 defines a main flow direction 42 for the temperature control medium flowing from the inlet IN to the outlet OUT in the channel system 7, which is indicated schematically by one or more arrows. The channel system 7 has a left channel boundary contour 46 and a right channel boundary contour 47 along the main flow direction 42, which are only representative for all embodiments. Figure 10 and Figure 11 as well as Figure 13 and Figure 14 With reference numerals. Figure 10 and Figure 11 In the embodiment, the main flow direction 42 is oriented from top to bottom, so that the left channel boundary contour 46 is Figure 10 and Figure 11 is on the right side, while the right channel boundary contour 47 is Figure 10 and Figure 11 The two channel boundary contours 46, 47 delimit the cross-sectional area of ​​the channel system 7 through which the temperature control medium can flow transversely to the main flow direction 42. If, for the purposes of this explanation, the channel system 7 is considered a riverbed, the left channel boundary contour 46 and the right channel boundary contour 47 form the left and right banks of the riverbed.

[0110] The channel system 7 defines a left shortest route 48 extending from the inlet IN along the left channel boundary contour 46 to the outlet OUT, and a right shortest route 49 extending from the inlet IN along the right channel boundary contour 47 to the outlet OUT. When determining the respective shortest routes 48 and 49 for the connections from the inlet IN and the outlet OUT to the respective channel boundary contours 46 and 47, the shortest direct route is considered.

[0111] In case the inlet IN has only one inlet interface 5, the geometric center of the inlet interface 5 is used as the starting point of the center line 37. Figure 14 In the case of an inlet IN with multiple inlet connections 5, the geometric center of an envelope curve 56, the so-called "envelope", enclosed by the inlet connections 5 is used as the starting point of the center line 37. The same applies to the outlet OUT if it has only one outlet connection 6 or multiple outlet connections 6.

[0112] The channel system 7 has a total channel system length 41 from the inlet IN to the outlet OUT as already mentioned above. The channel system is also configured so that: if the two shortest routes 48, 39 are of different sizes, the total channel system length 41 is at most 50% or at most 40% or at most 30% or at most 25% or at most 20% or at most 15% or at most 10% or at most 5% or at most 0% greater than the longer of the left shortest route 48 and the right shortest route 49; or, if the left shortest route 48 and the right shortest route 49 are of equal size, the total channel system length 41 is at most 50% or at most 40% or at most 30% or at most 25% or at most 20% or at most 15% or at most 10% or at most 5% or at most 0% greater than the left shortest route 48 or the right shortest route 49. Figure 10 and Figure 11 In the example shown, the right shortest route 49 is greater than the left shortest route 48. Similarly, according to a particularly advantageous embodiment, it can be provided that the configuration of the channel system 7 is selected such that: if the two shortest routes 48, 39 are of different sizes, the total channel system length 41 is at most equal to or even smaller than the longer of the left shortest route 48 and the right shortest route 49; or if the left shortest route 48 and the right shortest route 49 are of equal size, the total channel system length 41 is at most equal to or smaller than the left shortest route 48 or the right shortest route 49.

[0113] The average inlet region cross-sectional area 50 through which the temperature control medium can flow in the inlet region 26 is larger than the average outlet region cross-sectional area 51 through which the temperature control medium can flow in the outlet region 27. Figure 10 、 Figure 11 、 Figure 13 and Figure 14 In the channel system 7, along the main flow direction 42, only Figure 10 、 Figure 13 and Figure 14 The distance 52 between the left channel boundary contour 46 and the right channel boundary contour 47 is changed. In addition, the channel system 7 has at least one channel section 53 between the inlet IN and the outlet OUT, which extends in the main flow direction 42 from one extreme value E of the distance 52 to the next extreme value E of the distance 52. The respective extreme value E defines the maximum value MAX or the minimum value MIN and is defined in the following way: at the respective extreme value E, the straight line G extending along the distance 52 is perpendicular to the left channel boundary contour 46 and perpendicular to the right channel boundary contour 47. Figure 10 , a channel section 53 in the inlet region 26 is represented representatively, which extends in the main flow direction 42 from a maximum value MAX at the start of the channel section 53 to a minimum value MIN at the end of the channel section 53 .

[0114] The corresponding channel segment 53 has a segment length 54 measured along the center line 37 of the channel segment 53. The segment length 54 thus represents the route from the starting point or maximum value MAX of the corresponding channel segment 53 along the center line 37 to the end point or minimum value MIN. The center line 37 is formed by a straight line G or a center point M of the connecting straight line G, which connects a point PL of the left channel boundary contour 46 having a percentage length share between two extreme values ​​E in the range of 0% to 100% on the left channel boundary contour 46 and a point PR of the right channel boundary contour 47 having the same percentage length share between the extreme values ​​E on the right channel boundary contour 47. For example, Figure 10 , which connects the five left points PL at 0%, 25%, 50%, 75% and 100% of the length of the left channel boundary contour 46 with the five right points PR at 0%, 25%, 50%, 75% and 100% of the length of the right channel boundary contour 47. The straight line G connecting the points PL and PR at 0% corresponds to the maximum value MAX at the starting point of the channel section 53, and the straight line G connecting the points PL and PR at 100% corresponds to the minimum value MIN at the end point of the channel section 53.

[0115] The total channel system length 41 is formed by the sum of the segment lengths 54 of all channel segments 53 that follow one another from the inlet IN to the outlet OUT. Figure 10 In the example shown in FIG. 1 , the channel system 7 has nineteen extreme values ​​E between the inlet IN and the outlet OUT. The inlet IN and the outlet OUT also each form an extreme value E, ie, a minimum value MIN. Figure 10In the example shown, there are twenty channel sections 53 , which are each delimited in the main flow direction 42 by a minimum value MIN and a maximum value MAX, or by two extreme values ​​E. Channel sections 53 that directly follow one another in the main flow direction 42 adjoin one another via a common extreme value E. Thus, the inlet region 26 , the outlet region 27 , and the connecting region 34 each have a plurality of channel sections 53 .

[0116] Channel system 7 in Figure 4 、 Figure 13 and Figure 14 The examples are configured in the same way. Figure 13 and Figure 14 In addition to the channel segments 53 in which the distance 52 increases from a minimum value MIN to a maximum value MAX or decreases from a maximum value MAX to a minimum value MIN, there are a plurality of channel segments 53' in which the distance 52 between the left and right channel boundary contours 46, 47 is constant. The channel segments 53' with a constant distance 52 are Figure 13 and Figure 14 53 ′ are marked with double-headed arrows, each representing a segment length 54 of the corresponding channel segment 53 ′. In such a channel segment 53 ′, in which the distance 52 is constant, the channel segment 53 ′ extends along an extreme value E, which can be a minimum value MIN or a maximum value MAX, so that at the start and end of such a channel segment 53 ′, a maximum value MAX or a minimum value MIN can be present, respectively, and form a transition to the adjacent channel segment 53. In such a channel segment, the distance forms a plateau, which is not marked in detail.

[0117] Here, the average inlet region cross-sectional area 50 is formed by the inlet region volume available for flow of the temperature control medium in the inlet region 26, relative to the inlet region length. Similarly, the average outlet region cross-sectional area 51 is formed by the outlet region volume available for flow of the temperature control medium in the outlet region 27, relative to the outlet region length. The inlet region length can preferably be formed by the sum of the segment lengths 54 of all channel segments 53 located in the inlet region 26. The outlet region length can then be formed by the sum of the segment lengths 54 of all channel segments 53 located in the outlet region 27. The channel system 7 is preferably configured such that the average inlet region cross-sectional area 50 is at least 50% larger than the average outlet region cross-sectional area 51. A configuration in which the average inlet region cross-sectional area 50 is in the range of 70% to 600%, preferably in the range of 100% to 400%, of the average outlet region cross-sectional area 51 is particularly suitable.

[0118] The average connection region cross-sectional area 55 through which the temperature control medium can flow in the connection region 34 is Figure 1026 to the outlet region 27. It is indicated schematically by a double-headed arrow and is expediently smaller than the average inlet region cross-sectional area 50 and larger than the average outlet region cross-sectional area 51. The average connecting region cross-sectional area 55 is formed by the connecting region volume available for flow of the temperature control medium in the connecting region 34, relative to the connecting region length extending from the inlet region 26 to the outlet region 27. Provision can also be made for the connecting region length to be formed by the sum of the segment lengths 54 of all channel segments 53 located in the connecting region 34.

[0119] It can expediently be provided that the channel system 7 has a lower heat transfer coefficient in the inlet region 26 than in the outlet region 27 and / or in the connecting region 34 .

[0120] In the back, according to Figure 11 Alternative approaches are proposed for determining the center line 37 and thus the corresponding channel length.

[0121] The flowable cross-sectional area describes the static opening width available for the temperature control medium, i.e. the opening cross-sectional area resulting from the width and height after removing projections, depressions and other contours. Figure 11 The channel width is determined as the cross-sectional area of ​​the channel system 7. The flowable cross-sectional area of ​​the channel 32 is the open cross-sectional area available for the temperature control medium in the cross section. The channel length of the channel system 7, or the channel length in the inlet region 26, in the connecting region 34, and in the outlet region 27, is preferably the length of the center line 37 in the corresponding channel region.

[0122] The center line 37 of the inlet region 26, the connecting region 34 and the outlet region 27 can be determined as follows. The center line 37 represents the center point M of the distance A between the side channel boundary contours 46, 47. Figure 11 4 and 5. The distance A in this case represents the channel diameter perpendicular to the center line 37 and can be determined as follows for example for the inlet region ZB, the channel region KB and the outlet region AB.

[0123] In the inlet region ZB, where the inlet IN is located, circles K are generated with the inlet IN as the center, each of which has an intersection point S with the two channel boundary contours 46, 47. The two intersection points of the corresponding circles K are connected by a straight line, which defines the corresponding distance A or channel diameter of the channel boundary contours 46, 47. The geometric center of the distance A or diameter results in a center point M, which represents the point of the center line 37. As the distance A of the channel boundary contours 46, 47 increases, the connection with the intersection points of the channel boundary contours 46, 47 results in a channel cross-section with an increasing distance A or channel diameter and thus an increasing flowable cross-sectional area. The end point of the inlet region ZB exists if at least one of the following criteria is met:

[0124] a) The diameter of the circle K is so large that three contact points and / or intersection points S are produced between the circle K and the two channel boundary contours 46 , 47 .

[0125] b) Circle K enters the bend of channel 32 and thus extends beyond one of the two channel boundary contours 46 , 47 .

[0126] In the channel region KB, which lies between the inlet region ZB and the outlet region AB and thus has neither an inlet IN nor an outlet OUT, alternating regions are formed in the flow direction of the temperature control medium, in which the distance A, or the channel diameter, or the channel width, increases and decreases in the flow direction. Normally, i.e., under normal circumstances, the flowable cross-sectional area and the centerline 37 can be determined using standard practice. The channel diameter generally describes the minimum distance A between the two channel boundary contours 46, 47, and the individual cross-sections of the channel 32 are defined by the tangential contact of a circle K on the two channel boundary contours 46, 47, or by the contact points of the circle K on the two channel boundary contours 46, 47. In other words, in standard practice, a circle K is produced that tangentially contacts the channel boundary contours 46, 47 at each contact point. The center point M of the corresponding circle K thus forms the point of the centerline 37 of the channel 32.

[0127] The following special case can occur in particular in the curve of the channel 32. If the radius of the channel boundary contours 46, 47 outside the curve at the contact point of the circle K is smaller than the circle radius, that is, smaller than half the channel diameter, the following scenario results:

[0128] The following relationship is obtained when the channel diameter decreases in the flow direction. If the circle K moves downstream, the distance between the circle center point and the contact point with the two channel boundary contours 46, 47 decreases. At the contact point, the circle K and the corresponding channel boundary contour 46, 47 are in tangential contact, so that at the corresponding contact point, the circumference and the channel boundary contour 46, 47 extend parallel to each other. The circle K with a diameter that continues to decrease further is "pushed" so far into the channel 32 in the flow direction until a contact point with tangential contact is found on both sides. Possible, additional, non-tangential intersections of the channel boundary contours 46, 47 with the circle K upstream or downstream are not taken into account here. The contact point thus found defines the cross section of the channel 32, which leads to the found channel cross-sectional area and, via its center point M, to the point of the center line 37. If the circle K is so small that it "falls through" through the narrow part of the channel 32 without contacting the two channel boundary contours 46, 47, a region with a channel diameter that increases in the flow direction is reached.

[0129] If the radius of the channel boundary contours 46, 47 outside the corresponding curve is particularly small or narrow, the following relationship can be obtained: the radius of the channel boundary contours 46, 47 outside the curve is smaller than the radius of the circle. In this case, to define the cross-section that determines the flowable channel cross-sectional area and the center line 37, a point of the channel boundary contours 46, 47 outside the curve is selected, and the orthogonal projection onto the channel boundary contours 46, 47 inside the curve then represents the desired cross-section that defines the channel cross-sectional area and whose center point M corresponds to the point of the center line 37. If tangential contact is again achieved at the selected point, the standard procedure described above can be continued with the tangential contact of the circle K on the channel boundary contours 46, 47.

[0130] The following relationship is achieved for a channel diameter that increases in the flow direction. As circle K moves downstream, the distance between the circle center point and the tangential contact points with the two channel boundary contours 46, 47 increases. The contact points define distance A, or the channel diameter, of the flowable channel cross section, and distance A, or the center point M of the channel diameter, provides a further point on center line 37. If circle K reaches a point where it cannot be enlarged any further, a region with increasing channel width in the flow direction exists.

[0131] In the case of particularly small or narrow radii of the corresponding channel boundary contours 46, 47 on the outside of the curve, the following relationship can be obtained: If the radius of the channel boundary contours 46, 47 on the outside of the curve is smaller than the radius of the circle, to define the cross-sectional area, a point of the channel boundary contours 46, 47 on the outside of the curve is selected, and the orthogonal projection onto the channel boundary contours 46, 47 on the inside of the curve forms the cross-sectional area sought. If tangential contact is again achieved at the selected point, the tangential contact of the circle K on the two channel boundary contours 46, 47 can be continued in standard practice.

[0132] In the outlet region where the outlet OUT is located, a circle K can be generated similarly to the inlet region ZB, centered on the outlet OUT, which circle has an intersection point S with each of the two channel boundary contours 46 , 47 . Alternatively, standard procedures can also be used for channel regions with a decreasing cross-sectional area in the flow direction.

[0133] For each cross-sectional area found for the center line 37, it applies that the channel cross-sectional area, i.e. the product of the channel width and the channel height, is of equal size from the center line 37 to the two channel boundary contours 46, 47. With a constant channel height, the center line 37 is located in the cross section exactly midway between the two channel boundary contours 46, 47.

[0134] according to Figures 15 to 17 , the distance 52 can be measured on the left channel boundary contour 46 and the right channel boundary contour 47 with respect to the thickness direction or height direction (not specifically indicated) of the heat transfer plate 1, preferably centrally in the region 57 with the maximum inclination angle 58 relative to the plate surface 59 in which the heat transfer plate 1 extends. The configuration of the corresponding channels is Figures 15 to 17 The height direction or thickness direction is perpendicular to the plate surface 59 and is shown in a greatly simplified manner. Figures 15 to 17 The plate surface 59 extends vertically in Figures 15 to 17 Medium horizontal extension.

[0135] exist Figure 15 In the example of , the two channel boundary contours 46, 47 are arranged straight and, by way of example, have an inclination angle 58 of 90° relative to the plate surface 59. Other inclination angles 58 are also possible. In each case, in the case of straight channel boundary contours 46, 47 in the height direction Z, the inclination relative to the plate surface 59 is constant along the channel boundary contours 46, 47 in the height direction Z, so that the distance measurement is performed in the center of the corresponding channel boundary contour 46, 47 with respect to the height direction Z. Figure 16 and Figure 17In the example of FIG. 4 , the two channel boundary contours 46 , 47 are curved in their course in the height direction Z. In the case of a curved channel boundary contour 46 , 47 , the steepest point 60 of the respective channel boundary contour 46 , 47 is taken into account for the distance measurement. At this point 60 , the respective channel boundary contour 46 , 47 has the maximum inclination angle 58 relative to the plate surface 59 . If the steepest point 60 is Figure 16 The example is a point 61 of the corresponding channel boundary contour 46, 47, and the distance measurement is performed at the point 61 with respect to the height direction Z. If the steepest part 60 is as in Figure 17 In the example of a straight region 62 with a constant inclination angle 58 of the corresponding channel boundary contour 46 , 47 , the distance measurement is then performed with respect to the height direction Z in the center of the straight region 62 .

[0136] If the corresponding area of ​​the channel system 7 has multiple parallel flow paths through which the temperature control medium flows, this can be done as follows. The flow from the inlet IN to the outlet OUT can be considered as a single channel or as channels running partially or completely parallel. In the case of parallel channels, the flow length is determined for each channel similarly to the above description, and the channel length is determined as the average value of the lengths of the individual channels weighted by the channel cross-sectional area. In the case of branching and merging, the common channel cross-sectional area is determined for all subsections by averaging the lengths weighted by the individual cross-sectional areas and by summing the individual cross-sectional areas. The determined length components are average values ​​in the area of ​​parallel flow channels and refer to the channel centerline in the area of ​​a single channel.

[0137] according to Figure 14 In an advantageous embodiment, it can also be provided that the channel system 7 has a distribution area VB with an inlet IN, which is at least Figures 1 to 3 、 Figures 5 to 7 and Figure 14 Furthermore, the channel system 7 has a collecting area SB with an outlet OUT, which is at least Figures 1 to 3 、 Figures 5 to 7 and Figure 14 In addition, the channel system 7 can form a contact area KB in the temperature control area 30, which is only Figure 14The components 63 to be temperature-controlled are designated as shown in FIG. They are configured on the plate surface 3 for heat transfer coupling with the corresponding component 63 to be temperature-controlled and have a contact area length extending from the distribution area VB to the collection area SB. The inlet area 26, listed above, extends within the contact area KB and connects to the distribution area VB. The outlet area 27, listed above, also extends within the contact area KB and connects to the collection area SB. Thus, the distribution area VB and the inlet IN, as well as the collection area SB and the outlet OUT, are located outside the contact area KB, while the inlet area 26, the distribution area 34, and the outlet area 27 are located within the contact area KB. It can be seen that the contact area KB can now be selected to be large enough to allow for complete contact and temperature control of the components 63, in particular the traction battery 64.

[0138] In particular, it can be provided that the inlet area length, the outlet area length and the connection area length are each 1 / 3 of the contact area length. Also advantageous is a configuration in which the distribution area length and the collection area length are each at most 15% of the total channel system length 41.

[0139] In other embodiments, the length of the distribution area and the length of the collection area can each be 9.5% of the total channel system length 41. Alternatively, the length of the distribution area and the length of the collection area can be combined to be 19% of the total channel system length 41. Additionally, the length of the inlet area, the length of the outlet area, and the length of the connection area can each be 27% of the total channel system length 41. Alternatively, the length of the inlet area, the length of the outlet area, and the length of the connection area can each be 81% of the total channel system length 41.

[0140] The features of the arrangement 65 according to the present application of the traction battery 64 on the heat transfer plate 1 of the aforementioned type are as follows: Figure 14 The traction battery 64 is arranged on the plate surface 3 within the contact area KB and is heat-transferably coupled to the heat transfer plate 1. The dimensions of the traction battery 64 can define the extent of the contact area KB within the channel system 7. In other words, the distribution area VB and the collection area SB are each located outside the traction battery 64, while the contact area KB is covered by the traction battery 64.

[0141] The arrangement 65 of the traction battery 64 on the heat transfer plate 1 corresponds here to a unit, also designated 65 , comprising the traction battery 64 and the heat transfer plate 1 , wherein the traction battery 65 is arranged on the plate surface 3 in the contact area KB and is heat-transferringly coupled to the heat transfer plate 1 .

[0142] The traction battery 64 can be arranged as an integral assembly directly on the heat transfer plate 1. The traction battery 64 typically has a plurality of battery cells, not shown in detail. In principle, the battery cells can be arranged directly on the heat transfer plate 1. It is also conceivable that the traction battery 64 has a plurality of battery modules 66, each of which has a plurality of battery cells (not shown). In this case, the battery modules 66 can be arranged directly on the heat transfer plate 1. Figure 14 Six battery modules 66 are shown in the example of FIG.

Claims

1. A heat transfer plate (1) for controlling the temperature of at least one electrical and / or electronic component by means of a liquid temperature control medium, the heat transfer plate having a plate body (2) having a plate surface (3) and a surrounding plate edge (4), the plate surface being used for heat transfer coupling with the corresponding component to be temperature-controlled, -in, The plate body (2) has at least one temperature control zone (30) within the plate edge (4), the temperature control zone having an inlet (IN) configured on the plate body (2) for supplying a temperature control medium, an outlet (OUT) configured on the plate body (2) for discharging the temperature control medium, and a channel system (7) configured in the plate body (2) for conducting the temperature control medium, the inlet having at least one inlet connection (5), the outlet having at least one outlet connection (6), the channel system fluidically connecting the inlet (IN) to the outlet (OUT), wherein the channel system (7) defines a main flow direction (42) for the temperature control medium flowing in the channel system (7) from the inlet (IN) to the outlet (OUT), wherein the channel system (7) has, with respect to the main flow direction (42), a left channel boundary contour (46) and a right channel boundary contour (47), which delimit a cross-sectional area of ​​the channel system (7) through which a temperature control medium can flow transversely to the main flow direction (42), - wherein the channel system (7) defines a left shortest route (48) and a right shortest route (49), the left shortest route extending from the inlet (IN) along the left channel boundary contour (46) to the outlet (OUT), and the right shortest route extending from the inlet (IN) along the right channel boundary contour (47) to the outlet (OUT), wherein the channel system (7) has a total channel system length (41) from the inlet (IN) to the outlet (OUT), - wherein the channel system (7) is configured such that: the total channel system length (41) is at most 50% greater than the longer of the left shortest route and the right shortest route (48, 49); or, if the left shortest route and the right shortest route (48, 49) are equal in size, the total channel system length is at most 50% greater than the left shortest route or the right shortest route (48, 49), wherein the channel system (7) has an entry region (26) having an entry region length that extends over 20% to 40% of the total channel system length (41), wherein the channel system (7) has a discharge region (27) having a discharge region length that extends over 20% to 40% of the total channel system length (41), wherein the channel system (7) has a connecting region (34) which connects the inlet region (26) to the outlet region (27), wherein the average inlet region cross-sectional area (50) through which the temperature control medium can flow in the inlet region (26) is greater than the average outlet region cross-sectional area (51) through which the temperature control medium can flow in the outlet region (27).

2. The heat transfer plate (1) according to claim 1, It is characterized in that - the channel system (7) is configured so that: the total channel system length (41) is at most equal to the longer of the left shortest route and the right shortest route (48, 49); or, if the left shortest route and the right shortest route (48, 49) are equal in size, the total channel system length is at most equal to the left shortest route or the right shortest route (48, 49).

3. The heat transfer plate (1) according to claim 1 or 2, It is characterized in that - The channel system (7) is configured so that: the total channel system length (41) is less than the longer of the left shortest route and the right shortest route (48, 49); or, if the left shortest route and the right shortest route (48, 49) are equal in size, the total channel system length is less than the left shortest route or the right shortest route (48, 49).

4. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that - the channel system (7) has a distribution area (VB), said distribution area having said inlet (IN), said distribution area having a distribution area length, - the channel system (7) has a collecting region (SB), said collecting region having said outlet (OUT), said collecting region having a collecting region length, - the channel system (7) forms a contact area (KB) in the temperature control zone (30), said contact area being configured on the plate surface (3) for heat transfer coupling with a corresponding component (63) to be temperature controlled, and said contact area having a contact area length extending from the distribution area (VB) to the collection area (SB), - the inlet region (26) extends within the contact region (KB) and adjoins the distribution region (VB), The discharge region (27) extends within the contact region (KB) and adjoins the collecting region (SB).

5. Heat transfer plate (1) according to claim 4, It is characterized in that - The length of the entry area, the length of the discharge area and the length of the connection area are each 1 / 3 of the length of the contact area.

6. Heat transfer plate (1) according to claim 4 or 5, It is characterized in that The length of the distribution area and the length of the collection area are each at most 15% of the total length of the channel system (41).

7. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that - the length of the distribution area and the length of the collection area are each 9.5% of the total length of the channel system (41) or together 19% of the total length of the channel system, The inlet area length, the outlet area length and the connection area length are each 27% of the total channel system length (41) or together 81% of the total channel system length.

8. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that - in the channel system (7), the distance (52) between the left channel boundary contour and the right channel boundary contour (46, 47) varies along the main flow direction (42), the channel system (7) has at least one channel section (53) between the inlet (IN) and the outlet (OUT), said channel section extending in the main flow direction (42) from one extreme value (E) of the distance (52) to the next extreme value (E) of the distance (52), - at the corresponding extreme value (E), the straight line (G) extending along the distance (52) is perpendicular to the left channel boundary contour (46) and perpendicular to the right channel boundary contour (47), - the corresponding channel segment (53) has a segment length (54) measured along the center line (37) of the channel segment (53), - the center line (37) is formed by the center points (M) of the connecting straight lines (G), which connect in each case a point (PL) of the left channel boundary contour (46) having a percentage length share between two extreme values ​​(E) in the range of 0% to 100% on the left channel boundary contour (46) and a point (PR) of the right channel boundary contour (47) having the same percentage length share between the extreme values ​​(E) on the right channel boundary contour (47), The total channel system length ( 41 ) is formed by the sum of the segment lengths ( 54 ) of all channel segments ( 53 ) that follow one another from the inlet (IN) to the outlet (OUT).

9. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that the average inlet region cross-sectional area (50) is formed by the inlet region volume available for the flow of the temperature control medium in the inlet region (26) with reference to the inlet region length, The average outlet region cross-sectional area (51) is formed by the outlet region volume available for flow through by the temperature control medium in the outlet region (27), with reference to the outlet region length.

10. Heat transfer plate (1) according to claims 8 and 9, It is characterized in that the entry region length is formed by the sum of the segment lengths ( 54 ) of all channel segments ( 53 ) located in the entry region ( 26 ), The outlet region length is formed by the sum of the segment lengths ( 54 ) of all channel segments ( 53 ) located in the outlet region ( 27 ).

11. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that - The average inlet region cross-sectional area (50) is at least 50% greater than the average outlet region cross-sectional area (51).

12. Heat transfer plate (1) according to claim 11, It is characterized in that The average inlet region cross-sectional area (50) is in the range of 70% to 600%, preferably in the range of 100% to 400%, of the average outlet region cross-sectional area (51).

13. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that The average connection region cross-sectional area (55) through which the temperature control medium can flow in the connection region (34) is smaller than the average inlet region cross-sectional area (50) and larger than the average outlet region cross-sectional area (51).

14. Heat transfer plate (1) according to claim 13, It is characterized in that The average connection region cross-sectional area (55) is formed by the connection region volume available for flow of the temperature control medium in the connection region (34) with reference to the connection region length, which extends from the inlet region (26) to the outlet region (27).

15. Heat transfer plate (1) according to claims 8 and 14, It is characterized in that The connecting region length is formed by the sum of the segment lengths ( 54 ) of all channel segments ( 53 ) located in the connecting region ( 34 ).

16. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that The channel system ( 7 ) has a lower heat transfer coefficient in the inlet region ( 26 ) than in the outlet region ( 27 ) and / or than in the connecting region ( 34 ).

17. Heat transfer plate (1) according to any one of the preceding claims, It is characterized in that the channel system (7) has a plurality of paths (43) which respectively conduct the temperature control medium from the inlet (IN) via the distribution channel (8) to the connecting channel (9), from the connecting channel (9) to the collecting channel (10), and from the collecting channel (10) to the outlet (OUT), and each have a path length, each path (43) whose path length is less than 50%, in particular less than 60%, preferably less than 75% of the path length of the longest path (43) forms a short path (43), The sum of the minimum flowable cross-sectional areas (45) of all short paths (43) is less than 40%, in particular less than 20%, preferably less than 10% of the sum of the minimum flowable cross-sectional areas (45) of all other paths (43).

18. Use of a heat transfer plate (1) according to any one of the preceding claims for temperature control of battery cells of a traction battery of a battery-powered vehicle.

19. An arrangement (65) of a traction battery (64) on a heat transfer plate (1) according to claim 4 or according to claim 4 and any one of claims 5 to 17, -in, The traction battery (64) is arranged on the plate surface (3) in a contact area (KB) and is coupled to the heat transfer plate (1) in a heat transfer manner.

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