heat exchanger

Abstract

This method improves the heat exchange efficiency of the heat exchanger while suppressing a decrease in the flow velocity of the heat exchange medium. [Solution] The heat exchanger comprises a first plate section, a second plate section, a plurality of compartments, and a plurality of protrusions. The second plate section is positioned facing the first plate section that abuts the object, and forms a flow path through which the heat exchange medium passes between it and the first plate section. The plurality of compartments are the parts where the first plate section and the second plate section are joined, extending in the flow direction of the heat exchange medium and lining up in the width direction to partition the flow path. The plurality of protrusions are positioned between two adjacent compartments and protrude into the flow path. The plurality of protrusions extend from at least one of the compartments of two adjacent compartments and the second plate section, and are spaced apart from the first plate section. Furthermore, each of the plurality of protrusions has an inclined surface that slopes toward the first plate section from the upstream edge toward the downstream side.

Description

Technical Field

[0001] The present disclosure relates to a heat exchanger.

Background Art

[0002] Patent Document 1 discloses a cooler for a semiconductor, which includes a substrate having a mounting surface of a semiconductor and a cooling surface on the opposite side thereof, and a cover portion that is disposed so as to face the cooling surface and forms a flow path through which cooling water passes between the substrate and the cover portion. The cooler further includes a plurality of fins that extend from the cooling surface to the cover portion and partition the flow path, and a plurality of protrusions provided between the fins. Each protrusion protrudes from the cooling surface and extends from one fin to an adjacent fin, and is provided so as to be located only near an end portion on the cooling surface side of the fin.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described cooler, when the cooling water flowing through the flow path collides with the protrusion, a vortex is generated from the tip of the protrusion toward the downstream side. The swirling flow generated by this vortex flows so as to also reach the cooling surface, so that the heat transfer coefficient between the cooling surface and the cooling water tends to increase. On the other hand, since the vortex is periodically generated and is an unsteady vortex, the flow is greatly disturbed, and as a result, the flow velocity of the cooling water tends to decrease. When the flow velocity of the cooling water is thus slow, the cooling efficiency may decrease.

[0005] One aspect of the present disclosure aims to improve the heat exchange efficiency of a heat exchanger while suppressing a decrease in the flow velocity of a heat exchange medium.

Means for Solving the Problems

[0006] One aspect of the present disclosure is a heat exchanger configured to exchange heat with an object, comprising a first plate portion, a second plate portion, a plurality of compartments, and a plurality of protrusions. The first plate portion is a plate-shaped portion configured to abut the object. The second plate portion is a plate-shaped portion arranged facing the first plate portion and forming a flow path between it and the first plate portion through which a heat exchange medium passes. The plurality of compartments are portions to which the first plate portion and the second plate portion are joined, extending in the flow direction of the heat exchange medium and dividing the flow path in a width direction intersecting the flow direction. The plurality of protrusions are arranged between two adjacent compartments and provided to protrude into the flow path. The plurality of protrusions extend from at least one of the two adjacent compartments and the second plate portion, and are spaced apart from the first plate portion. Furthermore, each of the plurality of protrusions has an inclined surface that slopes toward the first plate portion from the upstream edge toward the downstream side.

[0007] In this configuration, the heat exchange medium flowing through the channel collides with multiple protrusions, directing the flow of the heat exchange medium toward the first plate. As a result, the heat transfer coefficient between the first plate and the heat exchange medium is improved. Furthermore, because the heat exchange medium flows toward the first plate along the inclined surface while maintaining its flow direction, the flow of the heat exchange medium is less likely to be obstructed. Therefore, it is possible to improve the heat exchange efficiency of the heat exchanger while suppressing a decrease in the flow velocity of the heat exchange medium.

[0008] In one aspect of this disclosure, the multiple protrusions may each extend from one of two adjacent compartments to the other. With this configuration, in the entire widthwise region of the flow path between two adjacent compartments, Because the heat exchange medium can be directed towards the first plate portion in a nearly uniform manner, heat exchange with the object in the flow path can be promoted in a nearly uniform manner.

[0009] In one aspect of this disclosure, the multiple projections may extend from each of two adjacent compartments. The multiple projections extending from one of the two adjacent compartments and the multiple projections extending from the other of the two adjacent compartments may be arranged alternately along the flow direction.

[0010] For example, if the protrusions extending from each of two adjacent compartments are not arranged alternately along the flow direction, that is, if they face each other in the width direction, the width of the flow path in the portion where each protrusion is provided tends to narrow in the flow direction. However, in the configuration described above, since the protrusions are arranged alternately along the flow direction, it is possible to suppress the narrowing of the flow path in the portion where each protrusion is provided, and the flow of the heat exchange medium tends to be more stable.

[0011] In one aspect of the present disclosure, the tops of the multiple protrusions may be located downstream of the flow direction center of the multiple protrusions in a cross section perpendicular to the width direction. With this configuration, it becomes easier to create a gentle slope on the inclined surface, thereby reducing pressure loss caused by significant obstruction of the flow of the heat exchange medium.

[0012] In one aspect of this disclosure, the first plate portion may be positioned above the second plate portion. In this configuration, the heat exchange medium flowing through the channel collides with multiple protrusions, directing the flow of the heat exchange medium toward the first plate. As a result, the heat transfer coefficient between the first plate and the heat exchange medium is improved. Furthermore, because the heat exchange medium flows toward the first plate along the inclined surface while maintaining its flow direction, the flow of the heat exchange medium is less likely to be obstructed. Therefore, it is possible to improve the heat exchange efficiency of the heat exchanger while suppressing a decrease in the flow velocity of the heat exchange medium. [Brief explanation of the drawing]

[0013] [Figure 1] This is a top view of a heat exchanger. [Figure 2] This is a side view of a heat exchanger. [Figure 3] This is a perspective view of a heat exchanger with the first plate section shown transparently. [Figure 4] This is a diagram of the IV-IV section in Figure 2. [Figure 5] This figure shows the VV cross-section of Figure 1 and an enlarged view of the protruding portion in that cross-section. [Figure 6]It is a diagram schematically showing the protruding part viewed from above. [Figure 7] It is a diagram schematically showing the protruding part of the first modification example viewed from above. [Figure 8] It is a diagram schematically showing the protruding part of the second modification example viewed from above. [Figure 9] It is a diagram schematically showing the protruding part of the third modification example viewed from above. [Figure 10] It is a diagram schematically showing a cross section orthogonal to the width direction of the protruding part of the fourth modification example. [Figure 11] It is a diagram schematically showing a cross section orthogonal to the width direction of the protruding part of the fifth modification example. [Figure 12] It is a diagram schematically showing a cross section orthogonal to the width direction of the protruding part of the sixth modification example. [Figure 13] It is a diagram schematically showing the flow path in which the protruding part of the seventh modification example is provided, viewed from above. [Figure 14] It is a diagram schematically showing the flow path in which the protruding part of the eighth modification example is provided, viewed from above. [Figure 15] Figure 15A is a perspective view of the second plate part of the ninth modification example. Figure 15B is a top view showing an enlarged part of the flow path in Figure 15A. [Figure 16] Figure 16A is a perspective view of the second plate part of the tenth modification example. Figure 16B is a top view showing an enlarged part of the flow path in Figure 16A.

Embodiments for Carrying Out the Invention

[0014] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. [1. Configuration] The heat exchanger 100 shown in Figures 1 to 3 is configured such that a fluid heat exchange medium flows through the internal flow path 10, and performs heat exchange 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 configured to cool the object 200. The heat exchanger 100 is installed in a vehicle, for example. The object 200 is, for example, a battery that supplies power to a motor that is the power source of an electric vehicle or a hybrid vehicle. Alternatively, for example, the heat exchange medium may be a high-temperature liquid, and the heat exchanger 100 may be configured to heat the object 200.

[0015] The heat exchanger 100 is a roughly rectangular plate-shaped device. The heat exchanger 100 comprises an inlet portion 101, an outlet portion 102, a first plate portion 1, a second plate portion 2, a plurality of partition wall portions 3, and a plurality of protrusions 4. As shown in Figure 1, the two edges of the heat exchanger 100 that face each other in the longitudinal direction (in other words, the flow direction F of the heat exchange medium) are designated as the inlet end 103 and the outlet end 104, respectively. The two edges of the heat exchanger 100 that face each other in the short direction (in other words, the width direction W intersecting the flow direction F) are designated as the first end portion 105 and the second end portion 106, respectively. The first and second ends 105 and 106 extend along the flow direction F. Inside the heat exchanger 100, a flow path 10 is provided, surrounded by an inlet end 103, an outlet end 104, a first end 105, and a second end 106.

[0016] <Entrance and Exit Sections> As shown in Figures 2 and 3, the inlet portion 101 and the outlet portion 102 are cylindrical parts provided so as to protrude from the first plate portion 1. The shape of the inlet portion and the outlet portion is not limited to cylindrical, but may be, for example, elliptical or polygonal. The inlet portion and the outlet portion may also be through holes provided in the first plate portion. The heat exchange medium flows into the flow path 10 through the inlet portion 101, flows through the flow path 10 along the flow direction F, and flows out to the outside through the outlet portion 102. Hereafter, the upstream and downstream sides of the flow direction F of the heat exchange medium will be simply referred to as the upstream side and the downstream side. The inlet portion 101 is provided in the first plate portion 1 near the inlet end portion 103, approximately in the center of the width direction W. The outlet portion 102 is provided in the first plate portion 1 near the outlet end portion 104, approximately in the center of the width direction W. The positions in which the inlet portion and the outlet portion are provided in the first plate portion are not limited to approximately in the center of the width direction W. For example, the inlet and outlet may be provided on the first plate such that the inlet is located on the first end side and the outlet is located on the second end side.

[0017] <First plate section and second plate section> The first plate portion 1 and the second plate portion 2 are substantially rectangular, flat members, and are arranged facing each other. As shown in Figure 2, the first plate portion 1 is in contact with the object 200. As an example, the heat exchanger 100 is arranged to spread horizontally, with the first plate portion 1 on the upper side and the second plate portion 2 on the lower side, and the object 200 is placed on top of the first plate portion 1.

[0018] The portion of the first plate portion 1 that contacts the object 200 has a shape that conforms to the object 200 (in other words, a shape corresponding to the object 200). That is, the portions of the first plate portion 1 and the object 200 that contact each other have the same or substantially the same shape, thereby promoting surface contact between these portions. In this embodiment, the first plate portion 1 is planar, and the portion of the object 200 that contacts the first plate portion 1 is also planar. Note that the portions of the first plate portion and the object that contact each other may have protrusions or curves formed on them that are configured to fit together.

[0019] The second plate portion 2 comprises an edge portion 20, a side wall portion 21, and a bottom portion 22. As shown in Figures 2 and 3, the edge portion 20 is provided so as to encircle the edge of the second plate portion 2 and is joined to the edge of the first plate portion 1. The edge portion 20 surrounds the side wall portion 21 and the bottom portion 22.

[0020] The bottom portion 22 is a roughly rectangular section and is positioned separately from the first plate portion 1. The side wall portion 21 is the part that connects the inner peripheral edge of the edge portion 20 and the outer peripheral edge of the bottom portion 22. That is, the side wall portion 21 is provided so as to encircle the inner peripheral edge of the edge portion 20 and the outer peripheral edge of the bottom portion 22. In the following description, the portion of the side wall portion 21 that is located on the side of the first end portion 105 and extends in the flow direction F will also be referred to as the first side wall portion 211. In addition, the portion of the side wall portion 21 that is located on the side of the second end portion 106 and extends in the flow direction F will also be referred to as the second side wall portion 212.

[0021] A flow path 10 is formed between the first plate portion 1 and the side wall portion 21 and bottom portion 22 of the second plate portion 2, through which the heat exchange medium passes. As shown in Figure 2, the flow path 10 has a roughly rectangular, flat shape, with an inlet portion 101 and an outlet portion 102 located at both ends in the longitudinal direction of the flow path 10, respectively.

[0022] <Partition wall section> As shown in Figures 3 and 4, each partition wall 3 is the part where the first plate portion 1 and the second plate portion 2 are joined. Specifically, each partition wall 3 protrudes from the bottom portion 22 of the second plate portion 2 toward the first plate portion 1 and abuts against the first plate portion 1. In this embodiment, each partition wall 3 is formed by a part of the second plate portion 2 protruding from the bottom portion 22. Alternatively, each partition wall may be formed by joining other members connecting the first plate portion and the second plate portion to the planar bottom portion of the second plate portion by welding or other means.

[0023] The multiple partition walls 3 are located within the flow path 10, away from the side walls 21 of the second plate 2. Furthermore, each of the multiple partition walls 3 extends along the flow direction F and aligns with the width direction W to partition the flow path 10. In this embodiment, the flow path 10 is partitioned by four partition walls 3 and side walls 21 to form five heat exchange flow paths 10a, an inlet flow path 10b, and an outlet flow path 10c. The five heat exchange flow paths 10a each extend along the flow direction F and align with the width direction W. The inlet flow path 10b and the outlet flow path 10c each extend along the width direction W and are located at both ends of the flow direction F so as to connect to the five heat exchange flow paths 10a. The inlet flow path 10b connects to the inlet section 101, and the outlet flow path 10c connects to the outlet section 102.

[0024] <Protrusion> As shown in Figure 3, each protrusion 4 is positioned between two adjacent partition walls 3 and is provided to protrude into the flow path 10. It is also positioned between the first side wall 211 and the partition wall 3 facing the first side wall 211, and between the second side wall 212 and the partition wall 3 facing the second side wall 212, and is provided to protrude into the flow path 10. In this embodiment, one protrusion 4 is positioned in each of the five heat exchange flow paths 10a. Each protrusion 4 is positioned approximately in the center of the longitudinal direction in each heat exchange flow path 10a. As shown in Figure 5, in this embodiment, each protrusion 4 is formed by a part of the second plate 2 protruding from the bottom 22. Note that each protrusion may also be formed by joining other members to the planar bottom by welding or other means.

[0025] Specifically, each projection 4 extends from each partition wall 3 or the first and second side wall 211, 212 and the bottom 22 of the second plate 2, and its top 41 is spaced apart from the first plate 1. As shown in Figures 3 and 6, in this embodiment, the three projections 4 extend straight along the width direction W from one of two adjacent partition wall 3 to the other. Also, one projection 4 extends straight along the width direction W from the first side wall 211 to the partition wall 3 facing the first side wall 211. Also, one projection 4 extends straight along the width direction W from the second side wall 212 to the partition wall 3 facing the second side wall 212. In other words, each protruding portion 4 has a heat exchange channel 10a between two adjacent partition wall portions 3, a heat exchange channel 10a between the first side wall portion 211 and the partition wall portion 3, or a heat exchange channel 10a between the second side wall portion 212 and the partition wall portion 3, along the width direction W. It crosses in a straight line. Figure 6 shows, as an example, a projection 4 extending from one of two adjacent partition walls 3 to the other. The length of each projection 4 along the flow direction F, that is, the length from the upstream edge 42 to the downstream edge 43, is constant throughout the entire area in the width direction W.

[0026] As shown in Figure 5, each projection 4 has an inclined surface 44 that slopes toward the first plate portion 1 from the upstream edge 42 toward the downstream side. In this embodiment, each projection 4 has a shape that is curved in a substantially arc shape in a cross section (hereinafter simply referred to as the cross section) perpendicular to the width direction W. That is, the cross-sectional shape of each projection 4 tapers toward the first plate portion 1 from the second plate portion 2. If other members are joined to the planar bottom by welding or the like, each projection may be formed in a cross-sectional shape that is, for example, a substantially semicircular column. The inclined surface 44 is a surface that extends across the entire width direction W from the upstream edge 42 to the top 41 of each projection 4. The inclined surface 44 causes the flow of the heat exchange medium to flow toward the first plate portion 1.

[0027] [2. Effects] According to the embodiments described in detail above, the following effects can be obtained. (2a) Near the first plate portion 1 in the flow path 10, the flow of the heat exchange medium is slower than in other parts, and a thermal boundary layer that hinders heat transfer from the flow path 10 to the object 200 is easily formed. In this embodiment, protrusions 4 are provided in the flow path 10, specifically in each heat exchange flow path 10a. When the heat exchange medium flowing through each heat exchange flow path 10a collides with each protrusion 4, the direction of flow changes toward the first plate portion 1. This makes it easier to break down the thermal boundary layer, and promotes heat transfer from the heat exchange flow path 10a to the object 200. As a result, the heat transfer coefficient between the first plate portion 1 and the heat exchange medium is improved. In addition, since the heat exchange medium moves toward the first plate portion 1 along the inclined surface 44 while remaining in the flow direction F, the flow of the heat exchange medium is less likely to be obstructed. Therefore, it is possible to improve the heat exchange efficiency of the heat exchanger 100 while suppressing a decrease in the flow velocity of the heat exchange medium.

[0028] (2b) In this embodiment, each protrusion 4 extends straight along the width direction W from one of two adjacent partition wall portions 3 to the other, from the first side wall portion 211 to the partition wall portion 3, or from the second side wall portion 212 to the partition wall portion 3. Therefore, it is easy to direct the heat exchange medium toward the first plate portion 1 substantially evenly across the entire width direction W of each heat exchange channel 10a, thereby promoting substantially uniform heat exchange with the object 200 in each heat exchange channel 10a.

[0029] (2c) In this embodiment, the first plate portion 1 is planar, and the portion of the object 200 that comes into contact with the first plate portion 1 is also planar. That is, the portions of the first plate portion 1 and the object 200 that come into contact with each other have substantially the same shape. This promotes surface contact between the first plate portion 1 and the object 200, and as a result, effective heat exchange can be performed.

[0030] In this embodiment, the partition wall portion 3, the first and second side wall portions 211 and 212, and the edge portion 20 correspond to an example of multiple partition portions.

[0031] [3. Other Embodiments] While embodiments of this disclosure have been described above, it goes without saying that this disclosure is not limited to the embodiments described above and can take various forms.

[0032] (3a) In the above embodiment, the length of the protrusion 4 along the flow direction F was constant throughout the entire width direction W, and it extended so as to traverse the heat exchange flow path 10a in a straight line along the width direction W. However, the shape of the protrusion 4 is not limited to this.

[0033] For example, the protruding portion 4 may traverse the heat exchange channel 10a diagonally, having an inclination with respect to a line extending straight in the width direction W. Specifically, as shown in Figure 7, the first modified example The protruding portion 4 may diagonally cross the heat exchange channel 10a such that its length along the flow direction F is constant throughout the entire width direction W, and one end of the upstream edge 42 in the width direction W is located downstream of the other.

[0034] Furthermore, for example, the protruding portion 4 may traverse the heat exchange channel 10a along the width direction W so as to have a bent portion or a curved portion. Specifically, as shown in Figure 8, the protruding portion 4 of the second modified example may have a bent portion 45, and may be V-shaped such that, in a top view, the bent portion 45 is located upstream of both ends of the protruding portion 4 in the width direction W.

[0035] Furthermore, for example, the length of the protrusion 4 along the flow direction F does not have to be constant over the entire width direction W. Specifically, as shown in Figure 9, the protrusion 4 of the third modified example may have a constricted shape such that the portions approximately in the center of the width direction W of the upstream edge 42 and the downstream edge 43 are recessed toward each other.

[0036] (3b) In the above embodiment, the protrusion 4 had a substantially arc-shaped cross-section, but the shape of the protrusion 4 is not limited to this. For example, as shown in Figure 10, the protrusion 4 of the fourth modified example may have a trapezoidal columnar cross-section. Also, for example, as shown in Figure 11, the protrusion 4 of the fifth modified example may have a triangular columnar cross-section.

[0037] Furthermore, for example, the protrusion 4 may be columnar in shape such that, in cross-section, its top 41 is located downstream of the center of the flow direction F in the protrusion 4. Specifically, as shown in Figure 12, the protrusion 4 of the sixth modified example may be columnar with an unequal triangular cross-section such that, in cross-section, its top 41 is located downstream of the center of the flow direction F in the protrusion 4. This makes it easier to form a gentle slope on the inclined surface 44, thereby reducing pressure loss due to significant obstruction of the flow of the heat exchange medium.

[0038] In addition, it is preferable that, in cross-section, the top 41 of the protruding portion 4 is located downstream of the center of the flow direction F in the protruding portion 4. However, as in the above embodiment and the 4th and 5th modified examples of the protruding portion 4, the top 41 may be located at the center of the flow direction F in the protruding portion 4 in cross-section, or the top may be located upstream of the center of the flow direction F in the protruding portion.

[0039] (3c) In the above embodiment and the first to sixth modifications, one protrusion 4 is arranged in each of the multiple heat exchange channels 10a approximately in the center of the flow direction F, but the arrangement and number of protrusions 4 are not limited thereto. For example, multiple protrusions 4 may be arranged in each of the multiple heat exchange channels 10a over the entire area of ​​the flow direction F. Specifically, as shown in Figure 13, in the seventh modification, a different number of protrusions 4 may be provided in each of the multiple heat exchange channels 10a, each at a different position in the flow direction F. In this way, by increasing the number of protrusions 4 or changing their arrangement to target the area to be cooled or heated, it is possible to design a heat exchanger 100 that can easily obtain the desired effect.

[0040] Furthermore, as shown in Figure 14, for example, the protrusions 4 of the eighth modified example may be arranged in such a way that they are more numerous in the downstream region of the flow direction F in each of the multiple heat exchange channels 10a. This promotes that more heat exchange medium flows toward the first plate portion 1 as it moves downstream, thereby facilitating heat exchange in the downstream region of each heat exchange channel 10a, where the heat exchange efficiency tends to decrease as the temperature of the heat exchange medium increases.

[0041] (3d) In the above embodiment and the first to eighth modifications, the protrusion 4 extended so as to traverse the heat exchange channel 10a along the width direction W. However, for example, the protrusion may extend between two adjacent sections The projections may extend from the partition wall section 3, the first side wall section 211 and the partition wall section 3 facing the first side wall section 211, and the second side wall section 212 and the partition wall section 3 facing the second side wall section 212. Furthermore, the projections extending from one of two adjacent partition wall sections 3 and the projections extending from the other may be arranged alternately along the flow direction F. Also, the projections extending from the first side wall section 211 and the projections extending from the partition wall section 3 facing the first side wall section 211 may be arranged alternately along the flow direction F. Furthermore, the projections extending from the second side wall section 212 and the projections extending from the partition wall section 3 facing the second side wall section 212 may be arranged alternately along the flow direction F. In other words, the projections extending from each of the opposing wall sections 3, 211, and 212 may be arranged alternately along the flow direction F. In other words, the protrusions extending from one of the opposing wall sections 3,211,212 and the protrusions extending from the other wall section may be offset from each other in the flow direction F so that they do not face each other in the width direction W.

[0042] Specifically, as shown in Figure 15A, the second plate portion 2a of the ninth modified example may be provided with a plurality of partition wall portions 3a and a plurality of protrusions 4a. In the example shown in Figure 15A, a plurality of protrusions 4a are arranged in each heat exchange channel 10a. Each protrusion 4a extends from each of two adjacent partition wall portions 3a and the bottom portion 22 of the second plate portion 2a. Each protrusion 4a also extends from the first side wall portion 211 and each of the partition wall portions 3a facing the first side wall portion 211 and the bottom portion 22 of the second plate portion 2a. Furthermore, each protrusion 4a extends from the second side wall portion 212 and each of the partition wall portions 3a facing the second side wall portion 212 and the bottom portion 22 of the second plate portion 2a. In addition, each protrusion 4a is spaced apart from the first plate portion 1. Furthermore, the protrusions 4a extending from each of the opposing wall sections 3a, 211, and 212 are arranged alternately along the flow direction F. Specifically, between two adjacent protrusions 4a extending from one of two adjacent partition wall sections 3a and spaced apart from each other in the flow direction F, there are multiple protrusions 4a extending from the other and spaced apart from each other in the flow direction F. Also, between two adjacent protrusions 4a extending from the first side wall section 211 and spaced apart from each other in the flow direction F, there are multiple protrusions 4a extending from the partition wall section 3a facing the first side wall section 211 and spaced apart from each other in the flow direction F. Furthermore, between two adjacent protrusions 4a extending from the second side wall 212 and spaced apart from each other in the flow direction F, there are multiple protrusions 4a extending from the partition wall 3a facing the second side wall 212 and spaced apart from each other. As shown in Figures 15A and 15B, in the example, each protrusion 4a is formed in the shape of a triangular pyramid. Each protrusion 4a has a triangular inclined surface 44a facing the upstream side. The inclined surface 44a is inclined so as it moves downstream from the upstream edge 42a, it approaches the first plate 1. As shown in Figure 15B, the inclined surface 44a causes the flow of the heat exchange medium to flow toward the first plate 1. As a result, the heat transfer coefficient between the first plate 1 and the heat exchange medium is improved.

[0043] For example, if the protrusions extending from each of the opposing wall portions 3a, 211, and 212 are not arranged alternately along the flow direction F, that is, they face each other in the width direction W, then in the flow direction F, the width of the heat exchange flow path 10a in the portion where each protrusion is provided tends to narrow. However, in the ninth modified configuration described above, since the protrusions 4a are arranged alternately along the flow direction F, it is possible to suppress the width of the heat exchange flow path 10a in the portion where each protrusion 4a is provided from becoming too narrow, and the flow of the heat exchange medium tends to stabilize.

[0044] Furthermore, as shown in Figure 16A, the second plate portion 2b of the tenth modified example may include a plurality of partition wall portions 3b and a plurality of protrusions 4b. Each of the plurality of partition wall portions 3b has an inclined side surface 31b at both ends in the width direction W. The inclined side surface 31b extends from the bottom portion 22 of the second plate portion 2b to the first plate portion 1 and extends along the flow direction F. In addition, the inclined side surface 31b is inclined with respect to a surface that is perpendicular to the bottom portion 22 and extends in the flow direction F. Specifically, the plurality of partition wall portions 3b are arranged such that the length in the width direction W increases from the first plate portion 1 to the second plate portion 2b. It has a wavy shape. The inclined side surface 31b is also curved in a wavy manner when viewed from above. The first side wall portion 211b and the second side wall portion 212b of the second plate portion 2b are inclined and curved in a wavy manner, similar to the inclined side surface 31b. In the example shown in Figure 16A, each wavy convex portion of the inclined side surface 31b and the first and second side wall portions 211b and 212b correspond to a plurality of protrusions 4b. The upstream surface of each wavy convex portion of the inclined side surface 31b and the first and second side wall portions 211b and 212b corresponds to the inclined surface 44b of each protrusion 4b. The inclined surface 44b is inclined so as it moves downstream from the upstream edge 42b toward the first plate portion 1.

[0045] The protrusions 4b are arranged alternately along the flow direction F such that each protrusion 4b of one of the two opposing inclined surfaces 31b is positioned between each protrusion 4b of the other surface. That is, each wavy convex portion of one of the two opposing inclined surfaces 31b and each wavy concave portion of the other surface face each other in the width direction W. Alternatively, the protrusions 4b may be arranged alternately along the flow direction F such that each protrusion 4b of the inclined surface 31b facing the first side wall 211 is positioned between each protrusion 4b of the first side wall 211. Alternatively, the protrusions 4b may be arranged alternately along the flow direction F such that each protrusion 4b of the inclined surface 31b facing the second side wall 212 is positioned between each protrusion 4b of the second side wall 212. As shown in Figure 16B, the inclined surface 44b of each protrusion 4b directs the flow of the heat exchange medium toward the first plate 1. As a result, the heat transfer coefficient between the first plate portion 1 and the heat exchange medium is improved.

[0046] Furthermore, each protrusion 4b is arranged alternately along the flow direction F. This prevents the width of the heat exchange flow path 10a in the portion where each protrusion 4b is provided from becoming too narrow, thus stabilizing the flow of the heat exchange medium.

[0047] (3e) In the above embodiment, the heat exchanger 100 was arranged horizontally with the first plate portion 1 positioned above the second plate portion 2. However, for example, the heat exchanger may be arranged so that the first plate portion 1 is positioned below the second plate portion 2. Also, for example, the heat exchanger may be arranged at an angle to the horizontal. Also, for example, the heat exchanger may be arranged to spread out in the vertical direction.

[0048] (3f) The functions of one component in the above embodiment may be distributed among multiple components, or the functions of multiple components may be integrated into one component. Also, some of the configurations of the above embodiment may be omitted. Also, at least some of the configurations of the above embodiment may be added to, replaced with, or otherwise adapted to the configurations of other above embodiments.

[0049] [Technical Concept Disclosed in This Specified Specification] [Item 1] A heat exchanger configured to exchange heat with an object, A first plate portion is a plate-shaped part configured to come into contact with the aforementioned object, A second plate portion is a plate-shaped portion that is positioned facing the first plate portion and forms a flow path through which a heat exchange medium passes between it and the first plate portion, The portion where the first plate portion and the second plate portion are joined, and which comprises a plurality of partitions that extend in the flow direction of the heat exchange medium and are arranged in a width direction intersecting the flow direction to partition the flow path, A plurality of protrusions are provided, which are arranged between two adjacent compartments among the plurality of compartments and which protrude into the flow path, Equipped with, The plurality of protrusions extend from at least one of the two adjacent compartments and the second plate, and are spaced apart from the first plate. A heat exchanger in which each of the plurality of protrusions has an inclined surface that slopes toward the first plate portion as it moves from the upstream edge toward the downstream side.

[0050] [Item 2] The heat exchanger described in item 1, The heat exchanger comprises a plurality of protrusions, each extending from one of two adjacent compartments to the other.

[0051] [Item 3] The heat exchanger described in item 1, The plurality of protrusions extend from each of the two adjacent compartments, A heat exchanger in which the plurality of protrusions extending from one of the two adjacent compartments and the plurality of protrusions extending from the other of the two adjacent compartments are arranged alternately along the flow direction.

[0052] [Item 4] A heat exchanger described in any one of items 1 to 3, A heat exchanger in which the multiple protrusions are positioned downstream of the center of the flow direction in a cross-section perpendicular to the width direction.

[0053] [Item 5] A heat exchanger described in any one of items 1 to 4, The first plate portion is a heat exchanger positioned above the second plate portion. [Explanation of Symbols]

[0054] 1...First plate section, 2,2a,2b...Second plate section, 3,3a,3b...Partition wall section, 4,4a,4b...Protruding section, 10...Flow channel, 10a...Heat exchange flow channel, 10b...Inlet flow channel, 10c...Outlet flow channel, 20...Edge section, 21...Side wall section, 22...Bottom section, 31b...Inclined side section, 41...Top section, 42,42a,42b...Upstream edge, 43...Downstream edge, 44,44a,44b...Inclined surface, 45...Bend section, 100...Heat exchanger, 101...Inlet section, 102...Outlet section, 103...Inlet end section, 104...Outlet end section, 105...First end section, 106...Second end section, 200...Object, 211,211b...First side wall section, 212,212b...Second side wall section.

Claims

1. A heat exchanger configured to exchange heat with an object, A first plate portion is a plate-shaped part configured to come into contact with the object, A second plate portion is a plate-shaped portion that is positioned facing the first plate portion and forms a flow path through which a heat exchange medium passes between it and the first plate portion, The portion where the first plate portion and the second plate portion are joined, and which comprises a plurality of partitions that extend in the flow direction of the heat exchange medium and are arranged in a width direction intersecting the flow direction to partition the flow path, A plurality of protrusions are provided, which are arranged between two adjacent compartments among the plurality of compartments and which protrude into the flow path, Equipped with, The plurality of protrusions extend from at least one of the two adjacent compartments and the second plate, and are spaced apart from the first plate. A heat exchanger in which each of the plurality of protrusions has an inclined surface that slopes toward the first plate portion as it moves from the upstream edge toward the downstream side.

2. A heat exchanger according to claim 1, The heat exchanger comprises a plurality of protrusions, each extending from one of two adjacent compartments to the other.

3. A heat exchanger according to claim 1, The aforementioned multiple protrusions extend from each of the two adjacent compartments, A heat exchanger in which the plurality of protrusions extending from one of the two adjacent compartments and the plurality of protrusions extending from the other of the two adjacent compartments are arranged alternately along the flow direction.

4. A heat exchanger according to any one of claims 1 to 3, A heat exchanger in which the multiple protrusions are positioned downstream of the center of the flow direction in a cross-section perpendicular to the width direction.

5. A heat exchanger according to any one of claims 1 to 3, The first plate portion is a heat exchanger positioned above the second plate portion.

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