JP3192720U - Plate member and heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate-shaped member and a heat exchanger for improving a heat exchange rate. A heat exchanger includes a laminate formed by laminating a plurality of heat exchange members made of plate-shaped members 40A. The plate-shaped member 40A has holes 43, 44 and an outer annular protrusion 46 for forming first and second stacking direction flow paths that communicate with the inner flow path of the heat exchange member when the laminated body is formed. , 49, and a hole 45, an outer annular protrusion 52, and an inner annular protrusion 55 for forming a third stacking direction flow path that does not communicate with the inner flow path when the laminated body is formed are formed. There is. Then, the third and second stacking direction flow paths are connected to the inflow pipe and the outflow pipe on one end side of the laminated body, and the first and second stacking direction flow paths are connected on the other end side of the laminated body. ing. [Selection diagram] Fig. 3

Description

  The present invention relates to a plate-like member and a heat exchanger, and more specifically, a plate-like member formed by pressing using a thin plate having a thickness of 0.3 mm or less made of a metal material having good thermal conductivity, and the plate-like member. It is related with the heat exchanger comprised using.

  Conventionally, one end and the other end of the first and second outer shell plates are expanded to provide an inlet tank and an outlet tank for the cooling medium, and between the inlet tank and the outlet tank between the first and second outer shell plates. A plurality of heat exchanger cores (tube sheet assemblies) in which refrigerant passages are provided are stacked while the inlet tanks and the outlet tanks communicate with each other and outer fins are interposed between the heat exchanger cores. A heat exchanger has been proposed (see, for example, Patent Document 1). In this heat exchanger, an inlet pipe and an outlet pipe are connected to an inlet tank and an outlet tank on one end side in the stacking direction of a plurality of heat exchanger cores, and a cooling medium (cooling water) introduced from the inlet pipe is It flows through the inlet tank, refrigerant passage and outlet tank of each heat exchanger core and is discharged from the outlet pipe. And heat exchange is performed by this cooling medium and the heat exchange medium which flows between adjacent heat exchanger cores.

JP 2004-93029 A

  Such a heat exchanger can be reduced in size by thinning the first and second outer shell plates or omitting the outer fins depending on the application. When the heat exchanger is downsized, the refrigerant passage and the adjacent heat exchanger core (the flow path of the heat exchange medium) are narrow, so that the heat exchange performance can be fully demonstrated and the heat exchange rate can be improved. It is more required that a sufficient cooling medium flows in the refrigerant passage of each heat exchanger core. In the heat exchanger described above, the cooling medium flowing in the refrigerant passage farther from the inlet pipe and the outlet pipe among the refrigerant passages of each heat exchanger core tends to be smaller than the cooling medium flowing in the refrigerant passage on the near side, This contributes to a decrease in the heat exchange rate.

  The plate-like member and heat exchanger of the present invention are mainly intended to improve the heat exchange rate.

  The plate-like member and heat exchanger of the present invention employ the following means in order to achieve the above-mentioned main object.

The plate-like member of the present invention is
A first and second hole formed by press working using a thin plate having a thickness of 0.3 mm or less made of a metal material having good thermal conductivity, and a communication groove for connecting the first and second holes; A plate-like member having a heat exchange member in which the communication grooves face each other and the first and second holes are aligned to form a flow passage in the member of the heat exchange medium by the communication grooves, A plate-like member in a heat exchanger comprising a laminate formed by laminating a plurality of heat exchange members,
The heat exchange medium in which the first and second holes communicate with the flow path in the member in the stacking direction of the heat exchange member when the laminated body is formed on the outer periphery of the first and second holes. Forming first and second laminating direction flow paths and first and second annular protrusions for forming a predetermined gap between the adjacent heat exchange members,
A third hole for forming a third stacking direction flow path of the heat exchange medium that does not communicate with the flow path in the member in the stacking direction of the heat exchange member when the stacked body is configured is formed. ,
On the outer periphery of the third hole, a third annular protrusion is formed to form the predetermined gap between the heat exchange members adjacent to each other when the laminate is configured.
It is characterized by that.

  In the heat exchanger configured using the plate-like member of the present invention, the heat exchange medium member is connected to each heat exchange member by the communication groove of each plate-like member formed using a thin plate of 0.3 mm or less. An inner flow path is formed. In addition, the first and second holes and the first and second annular protrusions of each plate-like member provide the laminated body with the first and second heat exchange media that communicate with the in-member flow path of each heat exchange member. A second stacking direction flow path and a predetermined gap between adjacent heat exchange members are formed. In addition, the third hole in each plate-like member and the third annular protrusion have a third stacking direction flow path of a heat exchange medium that does not communicate with the flow path in the member of each heat exchange member in the stacked body, A predetermined gap between adjacent heat exchange members is formed.

  In the heat exchanger configured using the plate member of the present invention, the third stacking direction flow path is connected to the inflow pipe on one end side of the stacked body, and the second stacking direction flow path is connected to one end of the stacked body. When connecting the first stacking direction flow path and the third stacking direction flow path by the connecting member on the other end side of the stacked body, the third stacking direction flow from the inflow pipe is connected to the outflow pipe on the side. The heat exchange medium that has flowed into the channel flows out through the third stacking direction flow path, the connecting pipe, the first stacking direction flow path, the in-member flow path of each heat exchange member, and the second stacking direction flow path. Spill into the tube. Further, the third stacking direction flow path is connected to the outflow pipe on one end side of the stacked body, the second stacking direction flow path is connected to the inflow pipe on one end side of the stacked body, and the first stacking direction flow path and When the third stacking direction flow path is communicated with the connecting member on the other end side of the stacked body, the heat exchange medium that has flowed into the second stacking direction flow path from the inflow pipe is transferred to the second stacking direction flow path. The heat exchange member flows out into the outflow pipe via the in-member flow path, the first stacking direction flow path, the connecting pipe, and the third stacking direction flow path. In these cases, of the first and second stacking direction channels, the inflow side of the stacking direction channel upstream of the in-member channel (hereinafter referred to as the upstream stacking direction channel) and the downstream side of the in-member channel The outflow side of the stacking direction flow path (hereinafter referred to as the downstream stacking direction flow path) is one end side and the other end side of the stacked body. Then, the heat exchange medium is heated or cooled, or the heat exchange medium is cooled or heated by heat exchange between the heat exchange medium in the member flow path and the heat exchange medium flowing in the gap between the adjacent heat exchange members. To do.

  In the heat exchanger configured using the plate-shaped member of the present invention, by adopting the above-described configuration, the inflow side of the upstream laminating direction flow path and the outflow side of the downstream laminating direction flow path are the same in the laminated body. Compared to the end side, a relatively narrow internal flow path of each heat exchange member formed by stacking each pair of plate members formed by pressing a thin plate of 0.3 mm or less In addition, the heat exchange medium can sufficiently flow (a variation in the flow rate of the flow path in each member is suppressed). As a result, the heat exchange performance between the heat exchange medium and the heat exchange medium can be sufficiently exhibited, and the heat exchange rate can be improved. Further, in order to make the inflow side of the upstream laminating direction flow path and the outflow side of the downstream laminating direction flow path one end side and the other end side of the laminate, an inflow pipe or an outflow pipe is connected to each of the inflow pipe In the heat exchanger configured using the plate-like member of the present invention, this is performed by the third stacking direction flow path and the connecting member. Thereby, the piping distance around the laminated body of the inflow pipe and the outflow pipe can be shortened.

  In the plate-like member of the present invention, the third hole is formed in the communication groove, and the third annular protrusion is formed on the outer periphery of the third hole in the communication groove. In addition, a fourth annular projecting portion projecting to the opposite side of the third annular projecting portion is formed on the outer periphery of the third annular projecting portion in the communication groove, and the fourth annular projecting portion is formed. The projecting portion may be joined in contact with the plate-like member that forms a pair when the heat exchange member is formed. If it carries out like this, the 4th cyclic | annular protrusion part of each plate-shaped member will become a partition of the radial direction outer side (channel in a member of each heat exchange member) and radial direction inner side (3rd lamination direction flow path). Thus, a third stacking direction flow path of the heat exchange medium that does not communicate with the in-member flow path of each heat exchange member is formed in the stacked body. Moreover, in the heat exchanger comprised using the plate-shaped member of this invention, in order to use the plate-shaped member formed by performing the press work to the thin plate of 0.3 mm or less, the heat exchange medium in the flow path in a member The plate-like member (heat exchange member) is likely to be deformed by the pressure of the plate, etc., but the plate-like member (heat exchange member) is deformed by forming the fourth annular protrusion in the communication groove of the plate-like member. Can be suppressed.

  In the plate-like member of the present invention in which the third hole, the third annular protrusion, and the fourth annular protrusion are formed in the communication groove, the communication groove and the fourth annular protrusion are: The width of the communication groove near the first and second holes is La, the width of the communication groove passing through the center of the fourth annular protrusion is Lb, and the width of the fourth annular protrusion is c. In this case, it may be formed so as to satisfy “Lb−Lc ≧ La”. In this way, it is possible to suppress the heat exchange medium from becoming difficult to flow in the vicinity of the fourth annular protrusion. As a result, it is possible to suppress a decrease in the flow rate of the heat exchange medium flowing through the in-member flow path due to the influence of the fourth annular protrusion.

  In the plate member of the present invention, the plate member is formed in a rectangular shape, and the first and second holes are formed in the vicinity of two diagonal corners of the four corners of the plate member. The communication groove may be formed in a zigzag shape, and the third hole may be formed in the center of the plate-like member.

  In the plate member of the present invention, the first, second and third annular protrusions are formed so as not to overlap each other when viewed from the longitudinal direction and the short direction of the plate member. It can also be. In this case, the said 1st, 2nd, 3rd cyclic | annular protrusion part shall be formed in the same diameter. According to these, when the laminated body is configured, the opening areas of the gaps between the adjacent heat exchange members (flow paths of the heat exchange medium) with respect to the flow of the heat exchange medium are each in the longitudinal direction and the short direction. It is possible to suppress a large change in position. As a result, it is possible to suppress a decrease in the flow rate of the heat exchange medium due to a partly extremely narrow flow path of the heat exchange medium.

  Furthermore, in the plate-like member of the present invention, in the communication groove, a plurality of outer boss portions for forming the predetermined gap between the heat exchange members adjacent to each other when the laminated body is configured, A plurality of inner boss portions that are brought into contact with and joined to the corresponding plate-like member when the heat exchange member is formed may be formed. If it carries out like this, a deformation | transformation of the plate-shaped member by the heat exchange medium etc. which flow through the member internal flow path of a heat exchange member can be suppressed more. In this case, the first and second annular projecting portions, the communication groove, the plurality of outer boss portions, and the plurality of inner boss portions are formed so as to be symmetric with respect to the third hole, respectively. It can also be. If it carries out like this, a deformation | transformation of a plate-shaped member can be suppressed more effectively.

  The heat exchanger of the present invention is a heat exchanger configured using the plate-shaped member of the present invention in any one of the above aspects, and the third stacking direction flow path is one end side of the stacked body. Connected to one of the inflow pipe and the outflow pipe, and the second stacking direction flow path is connected to the other of the inflow pipe and the outflow pipe on one end side of the stacked body, The gist of the present invention is that the stacking direction flow path and the third stacking direction flow path are communicated with each other on the other end side of the stacked body.

  This heat exchanger of the present invention is configured using the plate-shaped member of the present invention of any one of the above-described aspects, and further, the third stacking direction flow path is an inflow pipe and an outflow pipe on one end side of the stack. The first stacking direction channel and the second stacking direction channel are connected to the other of the inflow pipe and the outflow pipe on one end side of the stack. Are communicated by the connecting member on the other end side of the laminate. Thereby, the effect etc. which can fully exhibit heat exchange performance can be show | played like the plate-shaped member of this invention.

It is a block diagram which shows the outline of a structure of the heat exchanger 20 comprised using the plate-shaped member as one Example of this invention. It is a block diagram which shows the outline of a structure when the heat exchanger 20 is seen from the upper side of FIG. It is a block diagram which shows the outline of a structure of plate-shaped member 40A. It is sectional drawing which shows the AA cross section in FIG. 3 of the plate-shaped member 40A. It is sectional drawing which shows the BB cross section in FIG. 3 of the plate-shaped member 40A. It is sectional drawing which shows CC cross section in FIG. 3 of the plate-shaped member 40A. It is explanatory drawing which shows typically the mode of the flow of the heat exchange medium in 22 A of laminated bodies of an Example. It is explanatory drawing which shows typically the mode of the flow of the heat exchange medium in the laminated body 22C of a comparative example. It is a block diagram which shows the outline of a structure of the plate-shaped member 140A of a modification. It is a block diagram which shows the outline of a structure of the plate-shaped member 240A of a modification.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a configuration diagram showing an outline of the configuration of a heat exchanger 20 configured using a plate-like member as one embodiment of the present invention, and FIG. 2 shows the heat exchanger 20 from the upper side of FIG. It is a block diagram which shows the outline of a structure when it sees.

  The heat exchanger 20 according to the embodiment is used in a refrigeration cycle such as an air conditioner or a refrigeration apparatus, a cooling device for equipment that operates with heat generation, and the like, as shown in FIG. 1 and FIG. Between the laminates 22A and 22B, and the laminates 22A and 22B, each of which is formed by laminating a plurality of heat exchange members 30 in which flow paths (in-member flow paths 32 described later) are formed inside by the plate-like members 40A and 40B. And an inflow / outflow member 70 to which the inflow pipe 79 and the outflow pipe 80 are attached, and connecting members 75A, 75B disposed on the opposite side to the inflow / outflow member 70 side of the stacked bodies 22A, 22B. Prepare. The heat exchanger 20 is configured to exchange heat such as air flowing between the heat exchange members 30 adjacent to the heat exchange medium such as hydrofluorocarbon and water flowing through the flow paths inside the heat exchange members 30 of the stacked bodies 22A and 22B. By heat exchange with the medium, the heat exchange medium is heated or cooled, or the heat exchange medium is cooled or heated. In the embodiment, the plate-like members 40A and 40B have a length in the longitudinal direction of 56 mm, a length in the short direction of 35.8 mm, and a thickness of 1.25 mm. In addition, each of the stacked bodies 22A and 22B is configured by stacking 65 heat exchange members 30.

  FIG. 3 is a block diagram showing an outline of the configuration of the plate-like member 40A, FIG. 4 is a cross-sectional view showing a cross-section taken along line AA in FIG. 3 of the plate-like member 40A, and FIG. FIG. 6 is a cross-sectional view showing a cross section taken along the line BB in FIG. 3, and FIG. 6 is a cross-sectional view showing a cross section taken along the line CC in FIG. 4 to 6, in order to facilitate understanding, in addition to the plate-like member 40 </ b> A, the plate-like member 40 </ b> B that forms a pair when configuring the heat exchange member 30, or the adjacent heat exchange member 30 (plate-like). The members 40A, 40B) are also illustrated. In addition, the plate-like member 40B is formed in a shape obtained by turning the plate-like member 40A upside down in FIG. Therefore, each element of the plate-like member 40B will be described using the same reference numerals as those of the plate-like member 40A.

  As shown in FIG. 3, the plate-like members 40A and 40B are formed by pressing or punching a thin plate having a thickness of 0.3 mm or less with a metal material having good thermal conductivity such as an aluminum material or a stainless material. In addition, it is formed in a rectangular shape, and the holes 43 and 44 and the communication groove 42 for connecting the holes 43 and 44 are formed. The heat exchanging member 30 joins a pair of plate-like members 40A and 40B, with the connecting grooves 42 facing each other and aligned so that the holes 43 and 44 are aligned (also holes 45 described later are aligned). It is configured by. The stacked bodies 22A and 22B are configured by stacking a plurality of the heat exchange members 30 and joining the contact portions. In the embodiment, as a thin plate, a so-called clad plate having a thickness of 0.2 mm, in which a brazing material such as an aluminum silicon alloy is disposed on both sides of an aluminum plate material and integrally rolled by rolling the brazing material together. Was used. In the embodiment, the laminated bodies 22A and 22B are laminated at the respective pair of plate-like members 40A and 40B and heated at a temperature higher than the melting point of the brazing material and lower than the melting point of the plate (for example, 610 ° C. or 620 ° C.). By doing so, the contact portion is configured to be joined (brazed). That is, in the embodiment, the configuration of the heat exchange member 30 and the configuration of the stacked bodies 22A and 22B are performed simultaneously.

  As shown in FIGS. 3 to 6, the rectangular plate-like members 40 </ b> A and 40 </ b> B are formed so as to be symmetric with respect to the center (the center of a hole 45 described later). The above-mentioned holes 43 and 44 are formed in the vicinity of two diagonal corners of the four corners of the plate-like members 40A and 40B, and the communication groove 42 is formed in a zigzag (bellows or S-shape). ing. The communication grooves 42 of the plate-like members 40 </ b> A and 40 </ b> B are aligned with each other to form the in-member flow path 32 inside the heat exchange member 30 when configuring the heat exchange member 30. In the embodiment, the depth of the communication groove 42 is 0.3 mm.

  Further, outer annular projecting portions 46 and 49 projecting annularly toward the adjacent heat exchange member 30 are formed on the outer circumferences of the holes 43 and 44 of the plate-like members 40A and 40B. The outer annular protrusions 46 and 49 are flush with each other and are formed in the same shape (same diameter), and extend from the connecting groove 42 and the flat plate portion 41 to the adjacent heat exchange member 30 side while reducing the diameter. It has the lamination direction extension parts 47 and 50, and the flange parts 48 and 51 extended to radial inside from the front-end | tip part of the lamination direction extension parts 47 and 50. As shown in FIG. The outer annular protrusions 46 and 49 of the plate-like members 40A and 40B are in contact with and joined to the outer annular protrusions 46 and 49 of the adjacent heat exchange members 30 when configuring the stacked bodies 22A and 22B. Thus, the holes 43 and 44 and the outer annular protrusions 46 and 49 allow the heat exchange medium flow path 23 (see FIGS. 1, 2 and 4) and the heat transfer medium flow path 24 (FIGS. 1, 2 and 2). 5) is formed. The lamination direction flow paths 23 and 24 communicate with the in-member flow path 32 of each heat exchange member 30 while communicating with the heat exchange member 30 in the lamination direction.

  Furthermore, a hole 45 having the same diameter as the holes 43 and 44 is formed in the center of the plate-like members 40 </ b> A and 40 </ b> B and in the communication groove 42. On the outer periphery of the hole 45, an outer annular protrusion 52 that protrudes in an annular shape toward the adjacent heat exchange member 30 side, and an annular ring on the plate-like members 40 </ b> B and 40 </ b> A side that are continuous with the outer periphery of the outer annular protrusion 52. And an inner annular projecting portion 55 projecting at the end. The inner annular projecting portion 55 is formed so as to be flush with the flat plate portion 41. The outer annular protrusion 52 is flush with the outer annular protrusions 46 and 49 described above and has the same shape (same diameter) as the outer annular protrusions 46 and 49 when viewed from the longitudinal direction and the short direction. It is formed so as not to overlap. The outer annular projecting portion 52 includes a stacking direction extending portion 53 extending while reducing the diameter toward the heat exchange member 30 adjacent to the inner periphery of the inner annular projecting portion 55, and a tip of the stacking direction extending portion 53. And a flange portion 54 extending radially inward from the portion. When the heat exchange member 30 is formed, the inner annular protrusions 55 of the plate-like members 40A and 40B are in contact with and joined to the inner annular protrusions 55 of the paired plate-like members 40B and 40A. And the radially outer side (in-member flow path 32), and the deformation of the heat exchange member 30 due to the pressure of the heat exchange medium is suppressed. Further, the outer annular protrusions 52 of the plate-like members 40A and 40B are in contact with and joined to the outer annular protrusions 52 of the adjacent heat exchange members 30 when configuring the stacked bodies 22A and 22B. Thus, the hole 45, the outer annular projecting portion 52, and the inner annular projecting portion 55 form the stacking direction flow path 25 of the heat exchange medium. The lamination direction flow path 25 communicates with the heat exchange member 30 in the lamination direction, but does not communicate with the in-member flow path 32 of each heat exchange member 30.

  Here, the connecting groove 42 and the inner annular projecting portion 55 of the plate-like members 40A and 40B have the value La as the width of the portion in the vicinity of the holes 43 and 44 in the connecting groove 42, and the portion passing through the center of the hole 45 (center portion). Is Lb and the inner annular protrusion 55 is Lc, so that “Lb−Lc ≧ La” is satisfied. Therefore, when the heat exchange member 30 is formed, the in-member flow path 32 communicating with the hole 43 (stacking direction flow path 23) and the hole 44 (stacking direction flow path 24) is in the vicinity of the inner annular protrusion 55, It is formed so as to be the same as or wider than the vicinity of the hole 43 and the hole 44. Thereby, it can suppress that a heat exchange medium becomes difficult to flow in the inner side annular protrusion 55 vicinity. As a result, it is possible to suppress a decrease in the flow rate of the heat exchange medium flowing through the in-member flow path 32 due to the influence of the inner annular protrusion 55.

  In the connecting grooves 42 of the plate-like members 40A and 40B, outer boss portions 60, 61, 62, and 63 projecting so as to be flush with the outer annular projecting portions 46, 49, and 52 on the adjacent heat exchange member 30 side. Are formed, and inner boss portions 64 and 65 projecting so as to be flush with the flat plate portion 41 and the inner annular projecting portion 55 are formed on the pair of plate-like members 40B and 40A. The outer boss portions 60 and 61 are formed in the vicinity of two diagonal corners of the four corners of the plate members 40A and 40B so as to be symmetric with respect to the centers of the plate members 40A and 40B. The parts 62 and 63 are formed around the hole 45 so as to be symmetric with respect to the centers of the plate-like members 40A and 40B, and the inner boss parts 64 and 65 are respectively formed with the holes 43 and 44 and the outer boss part. 60 and 61 are formed so as to be symmetric with respect to the centers of the plate-like members 40A and 40B. The outer boss portions 60, 61, 62, 63 of the plate-like members 40A, 40B are in contact with the outer boss portions 60, 61, 62, 63 of the adjacent heat exchange member 30 when forming the laminated bodies 22A, 22B. The inner boss portions 64 and 65 are joined and contacted with the inner boss portions 64 and 65 of the plate-like members 40B and 40A that form a pair when the heat exchange member 30 is formed. The deformation of the heat exchange member 30 due to the pressure of the heat exchange medium is suppressed.

  The inflow / outflow member 70 has a space 71 communicating with (in communication with) the stacking direction flow path 25 and the inflow pipe 79 of the stacked bodies 22A and 22B, and a stacking direction flow of the stacked bodies 22A and 22B. A space 72 communicating with the passage 24 and the outflow pipe 80 is formed. In addition, the communication members 75A and 75B are formed therein with spaces 76 communicating with the stacking direction flow paths 23 and the stacking direction flow paths 25 of the stacked bodies 22A and 22B.

  In the heat exchanger 20 of the embodiment thus configured, the heat exchange medium that has flowed into the space 71 of the inflow / outflow member 70 from the inflow pipe 79 passes through the stacking direction flow path 25 of the stacked bodies 22A, 22B through the connecting members 75A, 75B. To the laminating direction flow path 23 via the space 76 of the connecting members 75A and 75B, and the laminating direction flow path 23, the in-member flow path 32 of each heat exchange member 30, and the laminating direction flow path 24. Then, it flows out to the outflow pipe 80 via the space 72 of the inflow / outflow member 70 (see FIGS. 1 and 2). Further, the heat exchange medium includes outer annular protrusions 46, 49, 52 and outer bosses 60, 61, 62, around the laminates 22A, 22B and between the heat exchange members 30 adjacent to the laminates 22A, 22B. It flows through a gap formed in a portion other than 63. Then, heat exchange is performed between the heat exchange medium flowing through the in-member flow path 32 and the heat exchange medium flowing through the gap between the adjacent heat exchange members 30. In the embodiment, the plate-like members 40A and 40B formed by pressing a thin plate having a thickness of 0.2 mm have a thickness of 1.25 mm and a depth of the connecting groove 42 of 0.3 mm. The length of the inner flow path 32 in the stacking direction (vertical direction in FIGS. 4 to 6) is 0.6 mm, and the length in the stacking direction of the gap between the adjacent heat exchange members 30 (flow path of the heat exchange medium). Is 2.1 mm around the flat plate portion 41, the inner annular projecting portion 55, and the inner boss portions 64 and 65, and 1.5 mm around the member flow passage 32. In such a small heat exchanger, since the in-member flow path 32 of each heat exchange member 30 and the gap between the adjacent heat exchange members 30 (flow path of the heat exchange medium) are relatively narrow, the heat exchange performance is sufficiently high. In order to improve the heat exchange rate, it is required to allow a sufficient heat exchange medium to flow through the in-member flow paths 32.

  FIG. 7 is an explanatory diagram schematically showing the flow of the heat exchange medium in the laminate 22A of the example, and FIG. 8 schematically shows the flow of the heat exchange medium in the laminate 22C of the comparative example. It is explanatory drawing shown. FIG. 7 shows the flow of the heat exchange medium after flowing into the stacking direction flow path 23 from the inflow pipe 79 via the stacking direction flow path 25 and the connecting member 75A. Moreover, as a comparative example, the stacking direction flow path 25 and the connecting members 75A and 75B in the heat exchanger 20 of the embodiment are not provided, and the stacking direction flow paths 23 and 24 are on the same end side of the stacked bodies 22A and 22B. The configuration connected to the inflow pipe 79 and the outflow pipe 80 was considered. In the configuration of the comparative example, as shown in FIG. 8, the inflow side of the stacking direction flow path 23 upstream of the in-member flow path 32 and the outflow side of the stacking direction flow path 24 downstream of the in-member flow path 32 are Since it is on the same end side (right end side in the figure) of the laminated body 22C, a sufficient heat exchange medium flows in the member internal flow passages on the side close to the inflow pipe 79 and the outflow pipe 80 among the internal flow passages 32 in each member. A sufficient heat exchange medium does not easily flow through the in-member flow path far from the inflow pipe 79 or the outflow pipe 80. For this reason, the heat exchange performance between the heat exchange medium and the heat exchange medium may not be sufficiently exhibited. On the other hand, in the embodiment, as shown in FIG. 7, the inflow side of the stacking direction flow path 23 upstream of the in-member flow path 32 and the outflow of the stacking direction flow path 24 downstream of the in-member flow path 32. Since the side becomes one end side (left end side in the figure) and the other end side (right end side in the figure) of the laminated body 22A, the heat exchange medium sufficiently flows into each member internal flow path 32 (each member internal flow path). The variation of the flow rate of 32 is suppressed). Thereby, the heat exchange performance can be sufficiently exhibited, and the heat exchange rate can be improved. Note that the stacked body 22B can be considered in the same manner as the stacked body 22A.

  By the way, in order to make the inflow side of the laminating direction flow path 23 and the outflow side of the laminating direction flow path 24 be one end side and the other end side of the laminated bodies 22A and 22B, it flows into the inflow side of the laminating direction flow path 23. It is conceivable to connect the pipe 79 and connect the outflow pipe 80 to the outflow side of the stacking direction flow path 24. However, in this case, the piping distance around the stacked bodies 22A and 22B of the inflow pipe 79 and the outflow pipe 80 becomes long. On the other hand, in the embodiment, the lamination direction flow path 25 is formed in the laminated body 22A and the lamination direction flow path 25 and the lamination direction flow path 23 are communicated with each other by the connecting members 75A and 75B. Since the inflow side of 23 and the outflow side of the stacking direction flow path 24 are the one end side and the other end side of the laminates 22A and 22B, the piping distances around the laminates 22A and 22B of the inflow pipe 79 and the outflow pipe 80 are reduced. Can be shortened.

  Further, in the heat exchanger 20 of the embodiment, the outer annular protrusions 46, 49, 52 of the plate-like members 40A, 40B have the same shape (same diameter) and do not overlap each other when viewed from the longitudinal direction or the short direction. Therefore, when the laminates 22A and 22B are configured, the opening area of the gap between the adjacent heat exchange members 30 (the flow path of the heat exchange medium) with respect to the flow of the heat exchange medium is hot. It is possible to suppress a large change at each position in the longitudinal direction and the short direction of the exchange member 30. Considering the case where the heat exchange medium flows in the longitudinal direction of the heat exchange member 30 (left and right direction in FIG. 3), the opening area at the position passing through the center of the hole 43 in the longitudinal direction (FIG. 4). The sum of the areas S11, S12, and S13), the opening area at the position passing through the center of the hole 45 (the sum of the areas S21 and S22 in FIG. 6), and the opening area at the position passing through the center of the hole 44 ( In FIG. 5, it can be seen that the sum of the areas S31, S32, and S33 is substantially the same except for the influence of the outer boss portions 60 and 61, the inner boss portions 64 and 65, and the inner annular protrusion 55. The same applies to the case where the heat exchange medium flows in the short direction of the heat exchange member 30. Thereby, the fall of the flow volume of a heat exchange medium by the part of the flow path of a heat exchange medium becoming extremely narrow can be suppressed. In the embodiment, since a small heat exchanger is considered, it is significant to secure the flow rate of the heat exchange medium.

  Further, in the heat exchanger 20 of the embodiment, the paired plate-like members 40A and 40B are joined by the flat plate portion 41, the inner annular projecting portion 55 at the center of the plate-like members 40A and 40B, and the inner boss portions 64 and 65. The adjacent heat exchanging member 30 includes outer annular protrusions 46 and 49 near the four corners of the heat exchanging member 30 (plate members 40A and 40B) and outer boss portions 60 and 61 and an outer boss portion 62 around the hole 45. , 63, the deformation of the heat exchange member 30 can be more effectively suppressed.

  The heat exchanger 20 according to the embodiment described above includes laminates 22A and 22B formed by laminating a plurality of heat exchange members 30 formed by plate-like members 40A and 40B formed by pressing a thin plate of 0.3 mm or less. . And in this laminated body 22A, 22B, the lamination direction flow path 23 connected to the member internal flow path 32 of the heat exchange member 30 by the holes 43, 44 of the plate-like members 40A, 40B and the outer annular protrusions 46, 49. 24, and the laminating direction flow path 25 that does not communicate with the in-member flow path 32 is formed by the hole 45, the outer annular protrusion 52, and the inner annular protrusion 55 of the plate-like members 40A and 40B. The lamination direction flow paths 25 and 24 are connected to the inflow pipe 79 and the outflow pipe 80 via the spaces 71 and 72 of the inflow / outflow member 70 on one end side of the laminated bodies 22A and 22B. The other ends of the bodies 22A and 22B are connected via the space 76 of the connecting members 75A and 75B. Therefore, the inflow side of the stacking direction flow path 23 upstream of the in-member flow path 32 and the outflow side of the stacking direction flow path 24 downstream of the in-member flow path 32 are one end side and the other end of the stacked bodies 22A, 22B. Therefore, the heat exchange medium flows in each member as compared to the case where the inflow side of the stacking direction flow path 23 and the outflow side of the stacking direction flow path 24 are the same end side of the stacked bodies 22A and 22B. It can be made to flow to the path 32 sufficiently, and the heat exchange performance can be sufficiently exhibited to improve the heat exchange rate. Further, with such a configuration, the inflow pipe 79 and the outflow pipe 80 are piped around the stacked bodies 22A and 22B, and the inflow side of the stacking direction flow path 23 and the outflow side of the stacking direction flow path 24 are stacked 22A. , 22B, the piping distance around the laminated bodies 22A, 22B of the inflow pipe 79 and the outflow pipe 80 can be reduced. Further, since the plate-like members 40A and 40B formed by pressing the thin plate are easily deformed, the plate-like members 40A and 40B are easily deformed, but contact the paired plate-like members 40B and 40A in the communication groove 42. By forming the inner annular protrusion 55 to be joined together, deformation of the plate-like member due to the pressure of the heat exchange medium in the in-member flow path 32 can be suppressed.

  In the heat exchanger 20 of the embodiment, the outer annular protrusions 46, 49, 52 of the plate members 40A, 40B are formed so as not to overlap when viewed from the longitudinal direction or the short direction of the plate members 40A, 40B. However, the outer annular protrusion 52 and at least one of the outer annular protrusions 46 and 49 may be formed so as to overlap each other when viewed from the longitudinal direction or the lateral direction. As this example, the case where the holes 43 and 44 are formed in the vicinity of two adjacent corners among the four corners of the plate-like members 40A and 40B can be considered. Further, in the heat exchanger 20 of the embodiment, the outer annular protrusions 46, 49, 52 are formed in the same shape (same diameter), but may be formed in slightly different diameters. Furthermore, in the heat exchanger of the embodiment, the outer annular protrusions 46, 49, 52 have the stacking direction extending portions 47, 50, 53 and the flange portions 48, 51, 54. , 51, 54, and only the stacking direction extending portions 47, 50, 53 may be provided.

  In the heat exchanger 20 of the embodiment, the communication grooves 42 of the plate-like members 40A and 40B are formed in a zigzag shape, but may be formed in other shapes, for example, a rectangular shape. .

  In the heat exchanger 20 of the embodiment, the connecting groove 42 and the inner annular protrusion 55 of the plate-like members 40A and 40B are formed so as to satisfy the above-mentioned “Lb−Lc ≧ La”. (Lb−Lc) may be formed to be slightly smaller than the value La.

  In the heat exchanger 20 of the embodiment, the connecting grooves 42 of the plate-like members 40A and 40B, the outer annular projecting portion 46 and the outer annular projecting portion 49, the outer boss portion 60 and the outer boss portion 61, the outer boss portion 62 and the outer boss portion. 63, the inner boss part 64 and the inner boss part 65 are formed so as to be symmetric with respect to the centers of the plate-like members 40A and 40B (centers of the holes 45), respectively. The outer boss portion 62 and the outer boss portion 63, the inner boss portion 64, the inner boss portion 65, and the like may not be formed symmetrically with respect to the centers of the plate-like members 40A and 40B. Moreover, in the heat exchanger 20 of an Example, although the hole 45 shall be formed in the center of plate-shaped member 40A, 40B, it is good also as what is formed in positions other than a center.

  In the heat exchanger 20 of the embodiment, the outer boss portions 60, 61, 62, 63 and the inner boss portions 64, 65 are formed in the communication groove 42 of the plate-like members 40A, 40B. The numbers of the outer boss portions and the inner boss portions are not limited to four and two, and may be appropriately changed according to the use of the heat exchanger 20 or the like. Further, the outer boss portion and the inner boss portion may not be formed.

  In the heat exchanger 20 of the embodiment, the hole 45, the outer annular protrusion 52, and the inner annular protrusion 55 are formed in the communication groove 42 of the plate-like members 40A and 40B. As shown in the plate-like members 140A and 240A of the tenth modified example and the plate-like members 140B and 240B in the same manner, holes 145 and 245 and outer annular protrusions 152 and 252 are provided at positions other than the communication groove 42. And may be formed. The positions and shapes of the holes 43 and 44 and the outer annular protrusions 46 and 49 in the plate members 140A and 140B and the plate members 240A and 240B are the same as those of the plate members 40A and 40B of the embodiment. The connecting grooves 142 in the plate-like members 140A and 140B are formed to branch into two near the hole 43 and to join the holes 43 and 44 by joining in the vicinity of the hole 44. The annular projecting portion 152 is formed on a central flat plate portion 141 formed by branching the connecting groove 142 into two. The communication groove 242 is formed so as to connect the holes 43 and 44 in a shape excluding one corner of the rectangle, and the hole 245 and the outer annular protrusion 252 are flat plate portions on the outer peripheral side from the communication groove 242. 241 is formed. In such plate-like members 140A and 140B and plate-like members 240A and 240B, the flat plate portions 141 and 241 around the outer annular protrusions 152 and 252 are the same as the inner annular protrusion 55 of the plate-like members 40A and 40B of the embodiment. In addition, a partition wall between the communication grooves 142 and 242 and the holes 145 and 245 (a partition wall between the in-member flow path 32 and the stacking direction flow path 25 of each heat exchange member 30) is formed. In FIGS. 9 and 10, the outer boss portion and the inner boss portion are not shown, but these may be formed.

  In the heat exchanger 20 of the embodiment, the plate-like members 40A and 40B are formed in a rectangular shape, but may be formed in a polygonal shape other than a rectangular shape, a circular shape, an elliptical shape, or the like.

  In the heat exchanger 20 of the embodiment, the lamination direction flow path 25 is connected to the inflow pipe 79 and the lamination AC path 24 is connected to the outflow pipe 80 on one end side of the stacked bodies 22A and 22B. The stacking direction flow path 25 may be connected to the outflow pipe 80 and the stacking direction flow path 24 may be connected to the inflow pipe 79. In this case, the heat exchange medium that has flowed from the inflow pipe 79 into the lamination direction flow path 24 of the stacked bodies 22A and 22B is the lamination direction flow path 24, the in-member flow path 32 of each heat exchange member 30, the lamination direction flow path 23, It flows out to the outflow pipe 80 via the connecting members 75A and 75B and the stacking direction flow path 25.

  In the heat exchanger 20 of the embodiment, the two stacked bodies 22A and 22B are provided. However, only one stacked body may be provided.

  Although the embodiment has been described as a form of the heat exchanger 20, the form of the plate-like members 40 </ b> A and 40 </ b> B used for the configuration of the heat exchanger 20 may be used.

  The correspondence between the main elements of the embodiment and the main elements of the device described in the column of means for solving the problem will be described. In the embodiment, the holes 43 and 44 correspond to “first and second holes”, the communication groove 42 corresponds to “connection groove”, the plate-like members 40A and 40B correspond to “plate-like members”, The in-member flow path 32 corresponds to the “in-member flow path”, the heat exchange member 30 corresponds to the “heat exchange member”, the stacked bodies 22A and 22B correspond to the “laminated body”, and the heat exchanger 20 It corresponds to a “heat exchanger”, the stacking direction channels 23 and 24 correspond to “first and second stacking direction channels”, and the outer annular protrusions 46 and 49 are “first and second annular protrusions”. The hole 45 corresponds to a “third hole”, and the outer annular protrusion 52 corresponds to a “third annular protrusion”.

  It should be noted that the correspondence between the main elements of the embodiment and the main elements of the device described in the column of means for solving the problem is the same as that of the embodiment described in the column of the means for solving the problem. This is an example for specifically explaining the mode for doing so, and does not limit the elements of the device described in the column of means for solving the problem. In other words, the interpretation of the device described in the column of means for solving the problem should be made based on the description of the column, and the embodiments are not the same as those of the device described in the column of means for solving the problem. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited to such an Example at all, In the range which does not deviate from the summary of this invention, in various forms. Of course, it can be implemented.

  The present invention can be used in the heat exchanger manufacturing industry.

  20 heat exchanger, 22A, 22B, 22C laminated body, 23, 24, 25 lamination direction flow path, 30 heat exchange member, 32 member internal flow path, 40A, 40B, 140A, 140B, 240A, 240B plate-like member, 41 , 141, 241 Flat plate part, 42, 142, 242 Connecting groove, 43, 44, 45, 145, 245 hole, 46, 49, 52, 152, 252 Outer annular projecting part, 47, 50, 53 Laminating direction extending part 48, 51, 54 Flange, 55 Inner annular protrusion, 60, 61, 62, 63 Outer boss, 64, 65 Inner boss, 70 Inflow / outflow member, 71, 72, 76 Space, 75A, 75B Contact Member, 79 inflow pipe, 80 outflow pipe.

Claims (9)

A first and second hole formed by press working using a thin plate having a thickness of 0.3 mm or less made of a metal material having good thermal conductivity, and a communication groove for connecting the first and second holes; A plate-like member having a heat exchange member in which the communication grooves face each other and the first and second holes are aligned to form a flow passage in the member of the heat exchange medium by the communication grooves, A plate-like member in a heat exchanger comprising a laminate formed by laminating a plurality of heat exchange members,
The heat exchange medium in which the first and second holes communicate with the flow path in the member in the stacking direction of the heat exchange member when the laminated body is formed on the outer periphery of the first and second holes. Forming first and second laminating direction flow paths and first and second annular protrusions for forming a predetermined gap between the adjacent heat exchange members,
A third hole for forming a third stacking direction flow path of the heat exchange medium that does not communicate with the flow path in the member in the stacking direction of the heat exchange member when the stacked body is configured is formed. ,
On the outer periphery of the third hole, a third annular protrusion is formed to form the predetermined gap between the heat exchange members adjacent to each other when the laminate is configured.
A plate-like member. The plate-like member according to claim 1,
The third hole is formed in the communication groove;
The third annular protrusion is formed on the outer periphery of the third hole in the communication groove,
On the outer periphery of the third annular projecting portion in the communication groove, a fourth annular projecting portion projecting to the opposite side of the third annular projecting portion is formed,
The fourth annular protrusion is joined in contact with the plate-like member that forms a pair when the heat exchange member is formed.
A plate-like member. The plate-like member according to claim 2,
The connecting groove and the fourth annular projecting portion have a width of the connecting groove in the vicinity of the first and second holes La, and a width of a portion of the connecting groove passing through the center of the fourth annular projecting portion. Lb, when the width of the fourth annular protrusion is Lc, it is formed to satisfy “Lb−Lc ≧ La”.
A plate-like member. The plate-like member according to any one of claims 1 to 3,
The plate-like member is formed in a rectangular shape,
The first and second holes are formed in the vicinity of two diagonal corners of the four corners of the plate-like member,
The communication groove is formed in a zigzag shape,
The third hole is formed at the center of the plate-shaped member.
A plate-like member. The plate-like member according to any one of claims 1 to 4,
The first, second, and third annular protrusions are formed so as not to overlap each other when viewed from the longitudinal direction and the short direction of the plate-like member.
A plate-like member. The plate-like member according to claim 5,
The first, second and third annular protrusions are formed to have the same diameter,
A plate-like member. The plate-like member according to any one of claims 1 to 6,
In the communication groove, a plurality of outer boss portions for forming the predetermined gaps between the adjacent heat exchange members when the laminated body is formed, and the heat exchange member are formed. A plurality of inner boss portions that are in contact with and joined to the plate-like member are formed,
A plate-like member. The plate-like member according to claim 7,
The first and second annular projecting portions, the communication groove, the plurality of outer boss portions, and the plurality of inner boss portions are formed so as to be symmetric with respect to the third hole, respectively.
A plate-like member. A heat exchanger configured using the plate-like member according to any one of claims 1 to 8,
The third stacking direction flow path is connected to one of the inflow pipe and the outflow pipe on one end side of the stacked body,
The second stacking direction flow path is connected to the other of the inflow pipe and the outflow pipe on one end side of the stacked body,
The first stacking direction flow path and the third stacking direction flow path are communicated by a connecting member on the other end side of the stacked body,
A heat exchanger characterized by that.

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