Search

JP-7855921-B2 - Heat exchanger, method for manufacturing a heat exchanger

JP7855921B2JP 7855921 B2JP7855921 B2JP 7855921B2JP-7855921-B2

Inventors

  • 本間 伸洋

Assignees

  • 株式会社デンソー

Dates

Publication Date
20260511
Application Date
20220519

Claims (4)

  1. A core portion (20) including a plurality of plate members (21) stacked in a predetermined direction and ultrasonically bonded , The system comprises end joining members (30, 90) ultrasonically bonded to the ends of the core portion in the predetermined direction, The plate member is formed with a first channel (W10) through which a first fluid flows and a second channel (W20) through which a second fluid flows, separated by a partition wall (212). The partition walls formed on each of the multiple plate members are continuously stacked in the predetermined direction. The end joining member is provided with a first common channel (W13, W14) that communicates with the first channel formed in each of the multiple plate members, and a second common channel (W23, W24) that communicates with the second channel formed in each of the multiple plate members . The plate member has the first channel and the second channel formed in a comb-like shape. The first flow path (W10) has a first inflow flow path section (W101) formed to extend in the left-right direction, and a plurality of first branch flow path sections (W102) that branch off and extend from the first inflow flow path section. The second flow path (W20) has a second inflow flow path section (W201) formed to extend in the left-right direction, and a plurality of second branch flow path sections (W202) that branch off and extend from the second inflow flow path section. The plate member has the first branch channel section and the second branch channel section arranged alternately. The multiple first inflow channel sections (W101) and the multiple first branch channel sections (W102) are in communication in the predetermined direction. The multiple second inflow channel sections (W201) and the multiple second branch channel sections (W202) are in communication in the predetermined direction. A heat exchanger in which multiple partition walls (212) are continuously stacked and ultrasonically bonded in the predetermined direction .
  2. The end joining member (30) includes: The first common channel is formed as a common channel (W13) that communicates with one end of the first channel formed in each of the multiple plate members, and a common channel (W14) that communicates with the other end of the first channel formed in each of the multiple plate members, The second common channel includes a common channel (W23) that communicates with one end of the second channel formed in each of the multiple plate members, and a common channel (W24) that communicates with the other end of the second channel formed in each of the multiple plate members. The heat exchanger according to claim 1 .
  3. The end joining member comprises a first end joining member (30) joined to one end of the core portion in the predetermined direction, and a second end joining member (90) joined to the other end of the core portion in the predetermined direction. The first end joining member includes: As the first common channel, either a common channel (W13) that communicates with one end of the first channel formed in each of the multiple plate members, or a common channel (W14) that communicates with the other end of the first channel formed in each of the multiple plate members, As the second common channel, either a common channel (W23) that communicates with one end of the second channel formed in each of the multiple plate members, or a common channel (W24) that communicates with the other end of the second channel formed in each of the multiple plate members, is formed. The second end joining member has, As the first common channel, a common channel is formed which communicates with one end of the first channel formed in each of the multiple plate members, and a common channel is formed which communicates with the other end of the first channel formed in each of the multiple plate members, The heat exchanger according to claim 1 or 2, wherein the second common flow path is a common flow path that communicates with one end of the second flow path formed in each of the plurality of plate members, and a common flow path that communicates with the other end of the second flow path formed in each of the plurality of plate members.
  4. A first channel (W10) through which a first fluid flows, comprising a first inflow channel section (W101) formed in a comb-like shape and extending in the left-right direction, and a plurality of first branch channel sections (W102) branching off from the first inflow channel section, and a second channel (W20) through which a second fluid flows, comprising a second inflow channel section (W201) formed in a comb-like shape and extending in the left-right direction, and a plurality of second branch channel sections (W202) branching off from the second inflow channel section, and these two channels are separated by a partition wall (212) , and a plurality of first branch channel sections and a plurality A process to form a core portion (20) by applying ultrasonic vibrations while applying a compressive force in the stacking direction and performing ultrasonic bonding, wherein a plurality of plate members (21) having a second branch channel section arranged alternately are stacked such that a plurality of the first inflow channel sections (W101) and a plurality of the first branch channel sections (W102) communicate in the stacking direction (Z), a plurality of the second inflow channel sections (W201) and a plurality of the second branch channel sections (W202) communicate in the stacking direction , and each of the partition walls is continuous in the stacking direction, and a core portion (20) is formed by ultrasonic bonding, A method for manufacturing a heat exchanger, comprising the steps of stacking end joining members (30) on one end of the core portion, each having first common channels (W13, W14) that communicate with the first channels formed in each of the plurality of plate members, and second common channels (W23, W24) that communicate with the second channels formed in each of the plurality of plate members , and applying ultrasonic vibration while applying a compressive force in the stacking direction to perform ultrasonic bonding.

Description

This disclosure relates to a heat exchanger and a method for manufacturing a heat exchanger. Conventionally, there is a heat exchanger described in Patent Document 1 below. The heat exchanger described in Patent Document 1 comprises multiple plate members arranged in a stacked configuration. Between the multiple plate members, flat refrigerant passages for the refrigerant and flat heat transfer medium passages for the heat transfer medium are formed. In this heat exchanger, heat exchange occurs between the refrigerant flowing through the refrigerant passages and the heat transfer medium flowing through the heat transfer medium passages. Japanese Patent Publication No. 2014-163639 Figure 1 is a front view showing the front structure of the heat exchanger according to the first embodiment.Figure 2 is a plan view showing the planar structure of the heat exchanger according to the first embodiment.Figure 3 is a plan view showing the planar structure of the first core plate member of the first embodiment.Figure 4 is a cross-sectional view showing the cross-sectional structure along the line IV-IV in Figure 2.Figure 5 is a cross-sectional view showing the cross-sectional structure along the line V-V in Figure 2.Figure 6 is a cross-sectional view showing the cross-sectional structure along the line VI-VI in Figure 2.Figure 7 is a plan view showing the planar structure of the second core plate member of the first embodiment.Figure 8 is a plan view showing the plan structure of the first upper end plate member of the first embodiment.Figure 9 is a plan view showing the planar structure of the second upper end plate member of the first embodiment.Figure 10 is a cross-sectional view showing the cross-sectional structure along the line X-X in Figure 2.Figure 11 is a cross-sectional view showing the cross-sectional structure along the line XI-XI in Figure 2.Figures 12(A) to 12(C) are cross-sectional views showing the manufacturing process of the heat exchanger according to the first embodiment.Figure 13 is a front view showing the front structure of the heat exchanger according to the second embodiment.Figure 14 is a plan view showing the planar structure of the heat exchanger according to the second embodiment.Figure 15 is a plan view showing the planar structure of the second core plate member of the second embodiment.Figure 16 is a plan view showing the planar structure of the third core plate member of the second embodiment.Figure 17 is a plan view showing the planar structure of the first upper end plate member of the second embodiment.Figure 18 is a plan view showing the planar structure of the second upper end plate member of the second embodiment.Figure 19 is a plan view showing the planar structure of the first lower end plate member of the second embodiment.Figure 20 is a plan view showing the planar structure of the second lower end plate member of the second embodiment.Figure 21 is a cross-sectional view showing the cross-sectional structure along the line XXI-XXI in Figure 14.Figure 22 is a cross-sectional view showing the cross-sectional structure along the line XXII-XXII in Figure 14. The following describes one embodiment of a heat exchanger and its manufacturing method with reference to the drawings. To facilitate understanding of the explanation, the same reference numerals are used for identical components in each drawing whenever possible, and redundant explanations are omitted. <First Embodiment> First, the heat exchanger of the first embodiment will be described. The heat exchanger 10 of this embodiment, shown in Figures 1 and 2, is a device capable of performing heat exchange between a first fluid and a second fluid flowing inside it. As shown in Figure 1, the heat exchanger 10 comprises a core portion 20 and an upper end joining member 30. The core portion 20 and the upper end joining member 30 are formed from a metal material such as an aluminum alloy. As shown in Figure 2, the upper surface of the heat exchanger 10 is provided with a first inlet pipe 40, a first outlet pipe 41, a second inlet pipe 50, and a second outlet pipe 51. The first inlet pipe 40 is the section through which the first fluid flows in. The first outlet pipe 41 is the section through which the first fluid, having flowed inside the heat exchanger 10, flows out. The second inlet pipe 50 is the section through which the second fluid flows in. The second outlet pipe 51 is the section through which the second fluid, having flowed inside the heat exchanger 10, flows out. As shown in Figure 1, the core portion 20 has a plurality of first core plate members 21, a second core plate member 22, and a third core plate member 23. These core plate members 21 to 23 are stacked and joined in the direction indicated by the arrow Z in the figure. In the following, the direction indicated by arrow Z will also be referred to as the plate stacking direction Z. Furthermore, within the plate stacking direction Z, the direction indicated by arrow