Heat exchanger

Abstract

A heat exchanger (100) comprises: a first plate section (1) for contacting an object (200); a second plate section (2, 2a, 2b) that forms a flow path (10) for a heat exchange medium between the first plate section (1) and the second plate section (2, 2a, 2b); several subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b); and several projections (4, 4a, 4b). The several subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b) extend in a flow direction (F) of the heat exchange medium and are arranged longitudinally in the width direction (W) to subdivide the flow path (10).The multiple projections (4, 4a, 4b) are each arranged between a first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and a second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b), which are adjacent to each other, and project within the flow path (10). The multiple projections (4, 4a, 4b) each extend from at least the first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) or the second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and / or the second plate section (2, 2a, 2b) and are separated from the first plate section (1). spaced apart. The multiple projections (4, 4a, 4b) each comprise an inclined surface (44, 44a, 44b) which approaches the first plate section (1) in the direction of a downstream side.

Description

STATE OF THE ART

[0001] This disclosure concerns a heat exchanger.

[0002] The publication of granted patent no. 4989574 discloses a cooling device for a semiconductor, comprising: a base plate comprising a semiconductor mounting surface and a cooling surface on its opposite side; and a cover section arranged to face the cooling surface, which together with the base plate forms a flow path through which cooling water passes. The cooling device further comprises: several fins extending from the cooling surface to the cover section, which subdivide the flow path; and several projections, each provided between the corresponding fins. Each projection is designed to project from the cooling surface, extend from one fin to another adjacent fin, and be located only near one end of the fin on the cooling surface side. SUMMARY

[0003] In the cooling device described above, when the cooling water flowing through the flow path encounters the projection, a vortex is generated from one of the projection's tips towards a downstream side. Because this vortex is generated periodically and is unstable, it causes significant turbulence in the cooling water flow, which can lead to a reduction in the cooling water's flow velocity. This, in turn, can reduce the cooling capacity.

[0004] It is desirable that one aspect of the present disclosure improves the heat exchange efficiency in a heat exchanger, while a reduction in the flow velocity of a heat exchange medium is mitigated.

[0005] One aspect of the present disclosure is a heat exchanger designed to exchange heat with an object, and the heat exchanger has a first plate section, a second plate section, several subdivision sections, and several projections. The first plate section is designed to come into contact with the object. The second plate section is arranged to face the first plate section and forms a flow path between the first and second plate sections through which a heat exchange medium passes. The several subdivision sections are sections over which the first and second plate sections are joined, and the several subdivision sections extend in the direction of flow of the heat exchange medium and are arranged longitudinally in a lateral direction intersecting the direction of flow to subdivide the flow path.The multiple projections are each arranged between a first subdivision section and a second subdivision section that are adjacent to each other, and project within the flow path. Each multiple projection extends from at least the first subdivision section or the second subdivision section and / or the second plate section and is spaced apart from the first plate section. Each multiple projection comprises an inclined surface that is inclined to be closer to the first plate section, at a distance from an upstream edge of each of the multiple projections, towards a downstream side.

[0006] In this design, the heat exchange medium flowing through the flow path encounters the multiple projections and is thereby guided towards the first plate section, leading to an improvement in the heat transfer coefficient between the first plate section and the heat exchange medium. Furthermore, since the heat exchange medium is guided along the inclined surface towards the first plate section while flowing in the direction of flow, it is less likely to be obstructed. This makes it possible to improve the heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0007] In one aspect of the present disclosure, the multiple subdivision sections can form multiple heat exchanger flow paths, each located between the first and second subdivision sections within the flow path. At least one of the multiple protrusions can be located in each of the multiple heat exchanger flow paths.

[0008] Such a design makes it possible to improve the heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0009] In one aspect of the present disclosure, two or more of the multiple protrusions may be arranged in each of the multiple heat exchanger flow paths.

[0010] Such a design makes it possible to improve the heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0011] In one aspect of the present disclosure, the multiple projections may each extend from the first subdivision section to the second subdivision section.

[0012] In this design, the heat exchange medium is effortlessly guided towards the first plate section, essentially uniformly across the entire width of the flow path between the two adjacent subdivision sections. This facilitates essentially uniform heat exchange with the object in the flow path.

[0013] In one aspect of the present disclosure, the multiple projections may each extend from one of the multiple subdivision sections and may be spaced apart from another of the subdivision sections.

[0014] Such a design makes it possible to improve the heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0015] In one aspect of the present disclosure, the multiple projections may comprise multiple first projections extending from the first subdivision section and multiple second projections extending from the second subdivision section. The multiple first projections and the multiple second projections may be arranged alternately along the flow direction.

[0016] For example, if the multiple first projections and the multiple second projections are not arranged alternately in the flow direction, i.e., if the projections face their counterparts in the width direction, it is likely that a section of the flow path where the projections face each other will be narrower. However, since the projections are arranged alternately along the flow direction in the embodiment described above, the section of the flow path where each projection is located can be prevented from being too narrow, thus facilitating the stabilization of the heat exchange medium flow.

[0017] In one aspect of the present disclosure, each of the multiple projections may be designed such that one of its tips lies downstream of the midpoint of the projection in the direction of flow.

[0018] Such a design makes it easier to create a gently inclined surface; thus, pressure loss caused by a significant obstruction of the flow of the heat exchange medium can be reduced.

[0019] In one aspect of the present disclosure, the first plate section may be arranged on an upper side of the second plate section.

[0020] In this design, when the heat exchange medium flowing through the flow path encounters the multiple projections, it is directed towards the first plate section, thus improving the heat transfer coefficient between the first plate section and the heat exchange medium. Furthermore, since the heat exchange medium is guided along the inclined surface towards the first plate section while flowing in the direction of flow, it is less likely to be obstructed. This allows for improved heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0021] In one aspect of this disclosure, the heat exchanger may further comprise an inlet flow path, an outlet flow path, an inlet section, and an outlet section. The inlet flow path may be located at a first end of the flow path in the flow direction. The outlet flow path may be located at a second end of the flow path in the flow direction. The inlet section may be continuous with the inlet flow path. The outlet section may be continuous with the outlet flow path.

[0022] Such a design makes it possible to improve the heat exchange efficiency in the heat exchanger while simultaneously preventing a reduction in the flow velocity of the heat exchange medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following are exemplary embodiments of the present disclosure with reference to the accompanying drawings, in which: Fig. 1 is a top view of a heat exchanger; Fig. 2 is a side view of the heat exchanger; Fig. 3 is a perspective view of the heat exchanger with a first plate section shown transparently; Fig. 4 a sectional view along a Fig. Line IV-IV shown in 2 is; Fig. 5 a sectional view along a Fig. 1 shown line VV and an enlarged view of a projection shown in the section view; Fig. 6 is a schematic top view showing the projection; Fig. 7 is a schematic top view of a projection of a first modified example; Fig. 8 is a schematic top view of a projection of a second modified example; Fig. 9 is a schematic top view of a projection of a third modified example; Fig. 10 a schematic sectional view of a projection perpendicular to a width direction of a fourth modified example; Fig. 11 a schematic sectional view of a projection perpendicular to a width direction of a fifth modified example; Fig. 12 a schematic sectional view of a projection perpendicular to a width direction of a sixth modified example; Fig. 13 is a schematic top view of a flow path in which projections of a seventh modified example are provided; Fig. 14 is a schematic top view of a flow path in which projections of an eighth modified example are provided; Fig. 15A is a perspective view of a second plate section of a ninth modified example; Fig. 15B an enlarged top view of part of a Fig. The flow path shown in 15A is; Fig. 16A is a perspective view of a second plate section of a tenth modified example; and Fig. 16B an enlarged top view of part of a Fig. The flow path shown in 16A is shown. DETAILED DESCRIPTION OF EXAMPLE FORMS OF EXECUTION [1. Design]

[0024] A in Fig. The heat exchanger 100 shown in Figures 1 to 3 is designed such that a fluid heat exchange medium flows through a flow path 10 within the heat exchanger 100 to exchange heat with an object 200 that is in contact with the heat exchanger 100. For example, the heat exchange medium is a liquid, such as cooling water, and the heat exchanger 100 is designed to cool the object 200. The heat exchanger 100 is, for example, installed in a vehicle. The object 200 is, for example, a battery that supplies electrical energy to a motor, which is a power source for an electric or hybrid vehicle. Alternatively, the heat exchange medium could be a high-temperature fluid, and the heat exchanger 100 could be designed to heat the object 200.

[0025] The heat exchanger 100 is essentially a rectangular, plate-like device. The heat exchanger 100 has an inlet section 101, an outlet section 102, a first plate section 1, a second plate section 2, several partition wall sections 3, and several projections 4. As shown in Fig. As shown in Figure 1, edges forming two opposite sides of the heat exchanger 100 in its longitudinal direction (i.e., the flow direction F of the heat exchange medium) are designated as an inlet end 103 and an outlet end 104. Edges forming two opposite sides of the heat exchanger 100 in its transverse direction (i.e., a width direction W that intersects the flow direction F) are designated as a first end 105 and a second end 106. The first end 105 and the second end 106 extend in the flow direction F. The heat exchanger 100 thus encompasses the flow path 10, which is surrounded by the inlet end 103, the outlet end 104, the first end 105, and the second end 106. <Einlassabschnitt und Auslassabschnitt>

[0026] As in Fig. 2 and Fig. As shown in Figure 3, the inlet section 101 and the outlet section 102 are each cylindrical sections designed to project from the first plate section 1. The shape of the inlet section and the outlet section is not limited to a cylindrical shape and can, for example, be an elliptical cylindrical shape or a polygonal cylindrical shape. Alternatively, the inlet section and the outlet section can each be a through-hole arranged in the first plate section. The heat exchange medium flows through the inlet section 101 into the flow path 10, flows through the flow path 10 along the flow direction F, and flows out through the outlet section 102. Hereinafter, an upstream side and a downstream side in the flow direction F of the heat exchange medium are also simply referred to as an upstream side and a downstream side, respectively.The inlet section 101 is located near the inlet end 103 and substantially in the middle of the first plate section 1 in the width direction W. The outlet section 102 is located near the outlet end 104 and substantially in the middle of the first plate section 1 in the width direction W. The positions of the inlet and outlet sections within the first plate section are not limited to being substantially in the middle of it in the width direction W. For example, the inlet and outlet sections can each be located on the side where the first end 105 is located or on the side where the second end 106 is located. <Erster Plattenabschnitt und zweiter Plattenabschnitt>

[0027] The first plate section 1 and the second plate section 2 are essentially rectangular planar elements and are arranged to face each other. Fig. Figure 2 shows the first plate section 1 in contact with the object 200. As an example, the heat exchanger 100 is arranged to extend with the first plate section 1 on the upper side and with the second plate section 2 on the lower side, and the object 200 is positioned on the first plate section 1.

[0028] A portion of the first plate section 1 that comes into contact with the object 200 has a shape that matches the object 200 (i.e., a shape corresponding to the object 200). In other words, the parts of the first plate section 1 and the object 200 that come into contact with each other have the same shape or substantially the same shape, thus facilitating surface contact between these parts. In the present embodiment, the first plate section 1 is flat, and the portion of the object 200 that comes into contact with the first plate section 1 is also flat. The parts of the first plate section and the object that come into contact with each other may be provided with a recess and / or projection, a rounded cavity and / or a rounded bulge, or the like, designed to fit together.

[0029] The second plate section 2 has a flange 20, a side wall 21 and a bottom 22.

[0030] As in Fig. 2 and Fig. As shown in Figure 3, the flange 20 is provided in an enclosing manner along an edge portion of the second plate section 2 and is joined to an edge portion of the first plate section 1. The flange 20 encloses the side wall 21 and the bottom 22.

[0031] The floor 22 is essentially a rectangular part and is spaced apart from the first plate section 1.

[0032] The side wall 21 connects an inner edge of the flange 20 and an outer edge of the base 22. In other words, the side wall 21 is designed to enclose the base 22 along the inner edge of the flange 20 and the outer edge of the base 22. In the following descriptions, a portion of the side wall 21 located on the side where the first end 105 is present and extending in the flow direction F is also referred to as a first side wall 211. Likewise, a portion of the side wall 21 located on the side where the second end 106 is present and extending in the flow direction F is also referred to as a second side wall 212.

[0033] The first plate section 1, as well as the side wall 21 and the bottom 22 of the second plate section 2, form the flow path 10 through which the heat exchange medium passes. As in Fig. As shown in Figure 2, the flow path 10 has an essentially rectangular, planar shape and the inlet section 101 and the outlet section 102 are located at respective ends of the flow path 10 in its longitudinal direction. <unterteilungswandabschnitt>

[0034] As in Fig. 3 and Fig. As shown in Figure 4, each partition wall section 3 is a section by means of which the first plate section 1 and the second plate section 2 are joined together. In particular, each partition wall section 3 projects from the base 22 of the second plate section 2 in the direction of the first plate section 1 in order to come into contact with it. In the present embodiment, each partition wall section 3 is formed by causing a portion of the second plate section 2 to project from the base 22. Each partition wall section can be formed by a separate component joined together on the flat base of the second plate section by welding or the like.

[0035] The multiple partition wall sections 3 are located within the flow path 10 at a distance from the side wall 21 of the second plate section 2. The multiple partition wall sections 3 extend along the flow direction F and are arranged longitudinally in the width direction W to partition the flow path 10. In the present embodiment, the flow path 10 is partitioned such that five heat exchanger flow paths 10a, one inlet flow path 10b, and one outlet flow path 10c are formed by four partition wall sections 3 and the side wall 21. The five heat exchanger flow paths 10a are formed by subdividing the flow path 10 with the four subdivision wall sections 3 and the first and second side walls 211 and 212 (all of which are also referred to as subdivision sections in the following) and extend in the flow direction F in order to be arranged longitudinally in the lateral direction W.The inlet flow path 10b and the outlet flow path 10c extend in the lateral direction W and are arranged at respective ends of the flow path 10 in the flow direction F, in order to be continuous with the five heat exchanger flow paths 10a. The inlet flow path 10b is continuous with the inlet section 101 and the outlet flow path 10c is continuous with the outlet section 102. <vorsprung>

[0036] As in Fig. As shown in Figure 3, each projection 4 is arranged between two corresponding adjacent partition wall sections 3 and projects within the flow path 10 in front of or between the first side wall 211 and the partition wall section 3 facing the first side wall 211, and projects within the flow path 10 in front of or between the second side wall 212 and the partition wall section 3 facing the second side wall 212, and projects within the flow path 10. In the present embodiment, each projection 4 is provided in one of the five heat exchanger flow paths 10a. Each projection 4 is arranged substantially in the center of the corresponding heat exchanger flow path 10a in its longitudinal direction. As shown in Fig. As shown in Figure 5, in the present embodiment each projection 4 is formed by causing a portion of the second plate section 2 to protrude from the base 22. Each projection can be formed by joining a separate component to the flat base by welding or the like.

[0037] In particular, each projection 4 extends from the corresponding subdivision wall section 3, the first side wall 211, or the second side wall 212 and projects from the base 22 of the second plate section 2, and a tip 41 of the projection 4 is spaced from the first plate section 1. As in Fig. 3 and Fig. As shown in Figure 6, in the present embodiment, three of the projections 4 extend straight along the width direction W from one of the two corresponding adjacent partition wall sections 3 to the other. Another projection 4 extends straight along the width direction W from the first side wall 211 to the partition wall section 3 facing the first side wall 211. The other projection 4 extends straight along the width direction W from the second side wall 212 to the partition wall section 3 facing the second side wall 212. In other words, each projection 4 crosses the corresponding heat exchanger flow path 10a straight along the width direction W. Fig. Figure 6 shows, by way of example, the projection 4, which extends from one of the two corresponding adjacent subdivision wall sections 3 to the other. Each projection 4 is constant in the lateral direction W and in the length in the flow direction F over the entire area, that is, in the length from its upstream edge 42 to its downstream edge 43.

[0038] As in Fig. As shown in Figure 5, each projection 4 comprises an inclined surface 44, which is inclined to be closer to the first plate section 1 in the direction of the downstream side, with a distance from the upstream edge 42. In the present embodiment, each projection 4 has a substantially arcuate shape in a cross-section perpendicular to the lateral direction W (hereinafter simply referred to as the cross-section). In other words, each projection 4 curves in its cross-section out of the second plate section 2 in the direction of the first plate section 1. In the case that a separate component is joined to the flat surface by welding or the like, each projection may, for example, be substantially semicircular in its cross-section. The inclined surface 44 extends in each projection 4 from the upstream edge 42 to the tip 41 over the entire area in the lateral direction W.The inclined surface 44 allows the heat exchange medium to flow in the direction of the first plate section 1. [2. Effects]

[0039] The embodiment detailed above produces the following effects:

[0040] (2a) Near the first plate section 1, the flow of the heat exchange medium in the flow path 10 is slower than at other locations, and it tends to form a thermal boundary layer that impedes heat transfer from the flow path 10 to the object 200. In the present embodiment, each projection 4 is provided in each heat exchanger flow path 10a. When the heat exchange medium flowing through each heat exchanger flow path 10a encounters the projection 4, the direction of flow changes towards the first plate section 1. This increases the probability of the thermal boundary layer being disrupted, thereby facilitating heat transfer from the heat exchanger flow path 10a to the object 200. As a result, the heat transfer coefficient between the first plate section 1 and the heat exchange medium is improved.Furthermore, since the heat exchange medium is guided along the inclined surface 44 towards the first plate section 1 while flowing in the direction of flow F, it is less likely that the flow of the heat exchange medium will be obstructed. This makes it possible to improve the heat exchange efficiency in the heat exchanger 100 while simultaneously preventing a reduction in the flow velocity of the heat exchange medium.

[0041] (2b) In the present embodiment, each projection 4 extends in a straight line along the width direction W from a first subdivision section to a second subdivision section. The first and second subdivision sections are adjacent to each other across the corresponding heat exchanger flow path 10a. Thus, the heat exchange medium can be guided substantially uniformly in the width direction W over the entire area of ​​the heat exchanger flow path 10a in the direction of the first plate section 1. This makes it possible to prevent uneven heat exchange with the object 200 in the heat exchanger flow path 10a.

[0042] (2c) In the present embodiment, the first plate section 1 is flat, and the part of the object 200 that comes into contact with the first plate section 1 is also flat. That is to say, the parts of the first plate section 1 and of the object 200 that come into contact with each other have essentially the same shape. This makes it possible to facilitate surface contact between the first plate section 1 and the object 200, which leads to effective heat exchange. [3. Other embodiments]

[0043] The embodiment of the present disclosure has been described so far; however, the present disclosure is not limited to the embodiment described above and may take various forms.

[0044] (3a) In the embodiment described above, the projection 4 has a constant length in the flow direction F over its entire width direction W and extends in a straight line along the width direction W to cross the heat exchanger flow path 10a. However, the shape of the projection 4 is not limited to this.

[0045] For example, the projection 4 can cross the heat exchanger flow path 10a at an angle in order to run obliquely with respect to the lateral direction W. In particular, as shown in Fig. As shown in Figure 7, the projection 4 of a first modified example is formed such that the length in the flow direction F is constant over the entire area in the latitude direction W and that a first end of the upstream edge 42 lies downstream of a second end of it in the latitude direction W.

[0046] Alternatively, the projection 4 can, for example, cross the heat exchanger flow path 10a along the lateral direction W to have an angled or curved portion. In particular, as shown in Fig. As shown in Figure 8, the projection 4 of a second modified example has an angled part 45 and is V-shaped, with the angled part 45 being located upstream of both ends of the projection 4 in the latitude direction W when viewed from above.

[0047] Alternatively, for example, the projection 4 need not be constant in length in the flow direction F over the entire area in the latitudinal direction W. In particular, as shown in Fig. As shown in Figure 9, in the projection 4 of a third modified example, the upstream edge 42 and the downstream edge 43 are each V-shaped, so that essentially their centers are closer together in the latitudinal direction W.

[0048] (3b) In the embodiment described above, the projection 4 has a substantially arc-shaped cross-section; however, the shape of the projection 4 is not limited to this. For example, as in Fig. As shown in 10, the projection 4 of a fourth modified example has a trapezoidal shape in cross-section. Alternatively, as in Fig. As shown in Figure 11, for example, the projection 4 of a fifth modified example has a triangular shape in cross-section.

[0049] Alternatively, the projection 4 can, for example, be designed such that in cross-section the tip 41 lies downstream of the center of the projection 4 in the flow direction F. In particular, as shown in Fig. As shown in Figure 12, the projection 4 of a sixth modified example has an asymmetrical triangular shape in cross-section, with the apex 41 located downstream of the center of the projection 4 in the flow direction F. This makes it easier to form the inclined surface 44 to be gently inclined; thus, a pressure loss caused by a significant obstruction of the flow of the heat exchange medium can be reduced.

[0050] As with the respective projections 4 of the embodiment described above and of the fourth and fifth modified examples, in cross-section the tip 41 can be located in the middle of each projection 4 in the direction of flow F or the tip can be located upstream of the middle of the projection in the direction of flow F.

[0051] (3c) In the embodiment described above and in the first to sixth modified examples, the respective projections 4 are each arranged individually in the flow direction F substantially in the middle of the corresponding heat exchanger flow path 10a; however, the arrangement and / or the number of projections 4 is not limited thereto. For example, in each of the multiple heat exchanger flow paths 10a, the multiple projections 4 can be arranged in the flow direction F over the entire area. In particular, as in one Fig. In the seventh modified example shown in Figure 13, a different number of the multiple projections 4 are arranged at different positions in the flow direction F in each of the multiple heat exchanger flow paths 10a. Since the number of projections 4 can be increased or their arrangement changed according to the sections to be cooled or heated, it becomes easier to achieve a desired heat exchange performance.

[0052] Alternatively, for example, as in a Fig. In the eighth modified example shown in Figure 14, in each of the multiple heat exchanger flow paths 10a, more of the multiple projections 4 are arranged in a region downstream of the flow direction F. This makes it easier to direct more heat exchange medium towards the first plate section 1 as it flows downstream. As a result, heat exchange can be facilitated in a region on the downstream side of each heat exchanger flow path 10a where the heat exchange efficiency is likely to decrease due to the increase in the temperature of the heat exchange medium.

[0053] (3d) In the embodiment described above and in the first to eighth modified examples, the respective projections 4 each extend to cross the corresponding heat exchanger flow path 10a along the lateral direction W. However, for example, an embodiment can be used which provides as projections several first projections extending from the first subdivision section and not reaching the second subdivision section adjacent to the first subdivision section, and several second projections extending from the second subdivision section and not reaching the first subdivision section. In addition, in each heat exchanger flow path 10a, the several first projections and the several second projections can be arranged alternately along the flow direction F.In other words, the respective first projections provided on the first subdivision section can be arranged so as not to align with the corresponding second projections provided on the second subdivision section adjacent to the first subdivision section across the corresponding heat exchanger flow path 10a, so that the respective first projections and the corresponding second projections do not face each other in the lateral direction W.

[0054] In particular, as in Fig. Figure 15A shows a second plate section 2a of a ninth modified example with several subdivision wall sections 3a and several projections 4a. In the example shown in Fig. In the example shown in Figure 15A, several projections 4a are arranged in each heat exchanger flow path 10a. In each heat exchanger flow path 10a, the projections 4a extend from two adjacent partition wall sections 3a and project from the base 22 of the second plate section 2a, or extend from the first side wall 211 and the partition wall section 3a facing the first side wall 211 and project from the base 22 of the second plate section 2a, or extend from the second side wall 212 and the partition wall section 3a facing the second side wall 212 and project from the base 22 of the second plate section 2a. The respective projections 4a are spaced apart from the first plate section 1.The projections 4a extending from the first subdivision section and the projections 4a extending from the second subdivision section facing the first subdivision section are arranged alternately along the flow direction F. In particular, the several first projections 4a extend from the first subdivision section and are arranged longitudinally at intervals in the flow direction F. Between two adjacent such first projections 4a is a corresponding one of the several second projections 4a, which extend from the second subdivision section and are arranged longitudinally at intervals in the flow direction F. In the section described below... Fig. 15A and Fig. In the example shown in Figure 15B, each projection 4a is formed in a triangular pyramidal shape. Each projection 4a includes an inclined triangular surface 44a that points upstream. The inclined surface 44a is inclined to be closer to the first plate section 1 by a distance from the upstream edge 42a in the direction of the downstream side. As shown in Fig. As shown in Figure 15B, the inclined surface 44a allows the flow of the heat exchange medium to flow towards the first plate section 1. As a result, the heat transfer coefficient between the first plate section 1 and the heat exchange medium is improved.

[0055] For example, if the projections extending from the first subdivision section and those extending from the second subdivision section are not arranged alternately, i.e., if the projections face their counterparts in the lateral direction, a section of the heat exchanger flow path 10a where the projections face each other will be narrower. However, since the projections 4a are arranged alternately in the embodiment of the ninth modified example described above, a section of the heat exchanger flow path 10a where each projection is provided can be prevented from becoming too narrow, thus facilitating the stabilization of the heat exchange medium flow.

[0056] As another example, how in Fig. As shown in Figure 16A, a second plate section 2a of a tenth modified example has several subdivision wall sections 3a and several projections 4a. Each of the several subdivision wall sections 3b comprises an inclined side surface 31b on each side in the lateral direction W. The inclined side surface 31b extends from the base 22 of the second plate section 2b to the first plate section 1 and also extends along the flow direction F. The inclined side surface 31b is inclined with respect to a plane extending in a direction perpendicular to the base 22 and in the flow direction F. In particular, each subdivision wall section 3b is designed to widen towards the base 22. Furthermore, the inclined side surface 31b is undulating when viewed from above.A first side wall 211b and a second side wall 212b of the second plate section 2b are each inclined and wave-shaped, just like the inclined side surface 31b. In the in . Fig. In the example shown in Figure 16A, several convex parts in the inclined side surface 31b and in the first and second side walls 211b and 212b, formed by their curvature in a wave shape, correspond to the several projections 4b. A surface forming an upstream portion of the convex part in the inclined side surface 31b and in the first and second side walls 211b and 212b corresponds to an inclined surface 44b of the projection 4b. The inclined surface 44b is inclined to be closer to the first plate section 1 by a distance from the upstream edge 42b in the direction of the downstream side.

[0057] The multiple projections 4b on a first inclined side surface 31b and the multiple projections 4b on a second inclined side surface 31b are arranged alternately along the flow direction F such that each projection 4b on the first inclined side surface 31b is located between two adjacent projections 4b on the second inclined side surface 31b. The first and second inclined side surfaces 31b refer to two inclined side surfaces 31b that face each other transversely across the heat exchanger flow path 10a. That is, the convex part on the first inclined side surface 31b and a concave part on the second inclined side surface 31b face each other in the lateral direction W.Similarly, the multiple projections 4b on the first side wall 211b and the multiple projections 4b on the inclined side surface 31b facing the first side wall 211b are arranged alternately along the flow direction F such that each projection 4b on the inclined side surface 31b is located between two adjacent projections 4b on the first side wall 211b. Likewise, the multiple projections 4b on the second side wall 212b and the multiple projections 4b on the inclined side surface 31b facing the second side wall 212b are arranged alternately along the flow direction F such that each projection 4b on the inclined side surface 31b is located between two adjacent projections 4b on the second side wall 212b. As in . Fig. As shown in Figure 16B, the inclined surface 44b of each projection 4b allows the heat exchange medium to flow towards the first plate section 1. As a result, the heat transfer coefficient between the first plate section 1 and the heat exchange medium is improved.

[0058] The alternating arrangement of the respective projections 4b, as described above, makes it possible to prevent a section of the heat exchanger flow path 10a, where each projection is provided, from becoming too narrow, thereby facilitating stabilization of the flow of the heat exchange medium.

[0059] (3e) In the embodiment described above, the heat exchanger 100 is arranged to extend horizontally with the first plate section 1, which is located on the upper side of the second plate section 2. However, the heat exchanger can, for example, be arranged such that the first plate section 1 is located on the lower side of the second plate section 2. Alternatively, the heat exchanger can, for example, be arranged to be inclined with respect to a horizontal direction. Alternatively, the heat exchanger can, for example, be arranged to extend in a vertical direction.

[0060] (3f) A function(s) that a single element has in the embodiments described above can be implemented by a plurality of elements in a distributed manner, and a function(s) that has a plurality of elements can be implemented by a single element in an integrated manner. A section of the design of the embodiments described above can be omitted. At least one section of the design in the embodiments described above can be added to or replaced in other embodiments. [Technical ideas revealed herein][Point 1]

[0061] A heat exchanger designed to exchange heat with an object, wherein the heat exchanger has: a first plate section designed to come into contact with the object; a second plate section which is arranged to face the first plate section, wherein the second plate section forms a flow path between the first plate section and the second plate section through which a heat exchange medium passes; several subdivision sections by means of which the first plate section and the second plate section are joined together, the several subdivision sections extending in the flow direction of the heat exchange medium and arranged longitudinally in a lateral direction intersecting the flow direction in order to subdivide the flow path; and several projections, each arranged between a first subdivision section and a second subdivision section that are adjacent to each other, of the multiple subdivision sections, wherein the projections protrude within the flow path, wherein the multiple projections each extend from at least the first subdivision section or the second subdivision section and / or the second plate section and are spaced apart from the first plate section, and wherein the multiple projections each comprise an inclined surface which is inclined to be closer to the first plate section at a distance from an upstream edge of each of the multiple projections in the direction of a downstream side. [Point 2]

[0062] Heat exchanger according to point 1, the multiple projections each extend from the first subdivision section to the second subdivision section. [Point 3]

[0063] Heat exchanger according to point 1, wherein the multiple projections comprise multiple first projections extending from the first subdivision section and multiple second projections extending from the second subdivision section, and wherein the multiple first projections and the multiple second projections are arranged alternately along the direction of flow. [Point 4]

[0064] Heat exchanger according to one of points 1 to 3, wherein each of the multiple projections is designed such that one of its tips lies downstream of the midpoint of the projection in the direction of flow. [Point 5]

[0065] Heat exchanger according to one of points 1 to 4, wherein the first plate section is arranged on an upper side of the second plate section. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 4989574

[0002] < / vorsprung> < / unterteilungswandabschnitt>

Claims

[1] Heat exchanger (100) designed to exchange heat with an object (200), wherein the heat exchanger (100) comprises: a first plate section (1) designed to come into contact with the object (200); a second plate section (2, 2a, 2b) which is arranged to face the first plate section (1), wherein the second plate section (2, 2a, 2b) forms a flow path (10) between the first plate section (1) and the second plate section (2, 2a, 2b) through which a heat exchange medium passes; several subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b) by means of which the first plate section (1) and the second plate section (2, 2a, 2b) are joined together, wherein the several subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b) extend in the flow direction (F) of the heat exchange medium and are arranged longitudinally in a lateral direction (W) intersecting the flow direction (F) in order to subdivide the flow path (10); and several projections (4, 4a, 4b) which are each arranged between a first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and a second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) which are adjacent to each other, of the several subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b), wherein the several projections (4, 4a, 4b) project within the flow path (10), wherein the multiple projections (4, 4a, 4b) each extend from at least the first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) or the second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and / or the second plate section (2, 2a, 2b) and are spaced apart from the first plate section (1), and wherein the multiple projections (4, 4a, 4b) each comprise an inclined surface (44, 44a, 44b) inclined to be closer to the first plate section (1) at a distance from an upstream edge of each of the multiple projections (4, 4a, 4b) in the direction of a downstream side. [2] Heat exchanger (100) according to claim 1, wherein the multiple subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b) form multiple heat exchanger flow paths (10a), each of which is located between the first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and the second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) in the flow path (10), and wherein at least one of the multiple projections (4, 4a, 4b) is arranged in each of the multiple heat exchanger flow paths (10a). [3] Heat exchanger (100) according to claim 2, wherein two or more of the multiple projections (4, 4a, 4b) are arranged in each of the multiple heat exchanger flow paths (10a). [4] Heat exchanger (100) according to one of claims 1 to 3, wherein the multiple projections (4, 4a, 4b) each extend from the first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) to the second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b). [5] Heat exchanger (100) according to one of claims 1 to 3, wherein the multiple projections (4, 4a, 4b) each extend from one of the multiple subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b) and are spaced apart from another of the subdivision sections (3, 3a, 3b, 211, 211b, 212, 212b). [6] Heat exchanger (100) according to claim 5, wherein the multiple projections (4, 4a, 4b) comprise multiple first projections (4, 4a, 4b) extending from the first subdivision section (3, 3a, 3b, 211, 211b, 212, 212b) and multiple second projections (4, 4a, 4b) extending from the second subdivision section (3, 3a, 3b, 211, 211b, 212, 212b), wherein the multiple first projections (4, 4a, 4b) and the multiple second projections (4, 4a, 4b) are arranged alternately along the direction of flow (F). [7] Heat exchanger (100) according to any one of claims 1 to 6, wherein each projection (4, 4a, 4b) of the multiple projections (4, 4a, 4b) is designed such that a tip (41) of it is located downstream of a center of the projection (4, 4a, 4b) in the flow direction (F). [8] Heat exchanger (100) according to any one of claims 1 to 7, wherein the first plate section (1) is arranged on an upper side of the second plate section (2, 2a, 2b). [9] Heat exchanger (100) according to any one of claims 1 to 8, further comprising: an inlet flow path (10b) located at a first end of the flow path (10) in the direction of flow (F); an outlet flow path (10c) located at a second end of the flow path (10) in the direction of flow (F); an inlet section (101) continuous with the inlet flow path (10b); and a continuous outlet section (102) with the outlet flow path (10c).

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