JP4280133B2 - Heat exchanger - Google Patents

Description

  The present invention relates to a heat exchanger that includes a tube that circulates a medium and a tank that is connected to an end of the tube, and that performs heat exchange with heat transmitted to the tube.

2. Description of the Related Art As a refrigeration cycle radiator and an automobile radiator, there is known a heat exchanger that includes a tube that circulates a medium and a tank that is connected to an end of the tube, and that heat exchanges with the heat that the medium transmits to the tube. Moreover, as a tank of such a heat exchanger, it arrange | positions between the 1st tank member and the 2nd tank member which are mutually assembled | attached, and forms a pipe body, and a pipe body is arrange | positioned between the 1st tank member and the 2nd tank member. What is provided with the partition member which divides the inside of is known. Patent Documents 1 to 11 disclose heat exchangers equipped with this type of tank.
JP-A-2-282671 JP-A-3-79085 Japanese Patent Laid-Open No. 5-17379 Japanese Patent Laid-Open No. 5-18690 JP-A-5-272889 JP-A-6-159980 Japanese Patent Laid-Open No. 7-260391 Japanese Patent Laid-Open No. 9-296992 JP-A-9-126684 Japanese Patent Laid-Open No. 10-213390 Japanese Patent Laid-Open No. 11-14288

  In heat exchangers, improvement of heat exchange efficiency, ease of manufacture, miniaturization, weight reduction, and narrowing of installation space are important issues. Further structural ingenuity is demanded with consideration. For example, if the partition inside the cylinder by the partition member in the tank is incomplete, this causes a decrease in heat exchange efficiency. In general, the heat exchanger is manufactured by assembling the constituent members and brazing the assembly, and the partition failure inside the cylinder due to the partition member is caused by the assembly of the first tank member and the second tank member. This is caused by accuracy, poor brazing between the cylinder and the partition member generated at the joint of the first tank member and the second tank member, or the like.

  This invention is made | formed in view of this situation, The objective is to provide the heat exchanger which comprises a tank more rationally.

  The invention described in claim 1 of the present application is a heat exchanger that includes a tube that circulates a medium and a tank that connects ends of the tube, and the medium performs heat exchange with heat transmitted to the tube. The tank is a partition that is disposed between the first tank member and the second tank member that are assembled with each other to form a tubular body, and the first tank member and the second tank member to partition the interior of the tubular body. A hole for inserting an end of the tube is provided in the first tank member, and a convex portion is provided on one inner surface of the first tank member and the second tank member. The part is a heat exchanger configured to include a first contact portion that contacts the other of the first tank member and the second tank member, and a second contact portion that contacts the partition member. According to such a structure, the heat exchanger which comprises a tank more rationally is obtained. That is, the heat exchanger of the present invention has a simple configuration in which a convex portion having a first contact portion and a second contact portion is provided on the inner surface of the first tank member or the inner surface of the second tank member. This achieves a remarkable effect of improving the assembling accuracy of the first tank member, the second tank member, and the partition member. The first tank member and the second tank member are positioned relative to each other by the first contact portion. The partition member is positioned with respect to the cylinder by the second contact portion. According to the present invention, the partition inside the cylindrical body by the partition member becomes more reliable, which is very advantageous for ensuring the performance of the heat exchanger satisfactorily.

  The invention described in claim 2 of the present application is the heat exchanger according to claim 1, wherein a plurality of the convex portions are provided and the partition member is sandwiched between the convex portions. Positioning of the partition member is further ensured by sandwiching the partition member between the plurality of convex portions.

  The invention described in claim 3 of the present application is the heat exchanger according to claim 1 or 2, wherein the convex portions are arranged at a predetermined pitch along the longitudinal direction of the tubular body. The partition member is positioned with respect to a predetermined one of the convex portions arranged in a line. According to such a configuration, the first member or the second member provided with the convex portion can be applied to those having different positions of the partition member, and the versatility thereof is reliably improved.

  ADVANTAGE OF THE INVENTION According to this invention, the heat exchanger which comprises a tank more rationally can be obtained.

  Embodiments of the present invention will be described below with reference to the drawings. The heat exchanger 1 of this example shown in FIGS. 1 and 2 is a radiator of a refrigeration cycle for in-vehicle air conditioning that is mounted on an automobile. The heat exchanger 1 includes a core 100 in which flat tubes 200 and corrugated fins 300 are alternately stacked, and a pair of tanks 400 in which ends of the tubes 200 are connected in communication. The medium that circulates is configured to exchange heat with the heat transmitted to the core 100. Side plates 500 as reinforcing members are provided on the upper and lower sides of the core 100, and both end portions of each side plate 500 are supported by the tank 400. An inlet portion 401 through which the medium flows in and an outlet portion 402 through which the medium flows out are provided at important points of the pair of tanks 400. The medium flowing into the heat exchanger 1 from the inlet portion 401 flows through the tube 200 while exchanging heat, and then flows out of the heat exchanger 1 from the outlet portion 402.

  The tube 200, the fin 300, the tank 400, the inlet portion 401, the outlet portion 402, and the side plate 500 are each made of a member made of aluminum or aluminum alloy, and are assembled together using a jig, and the assembled body is assembled in a furnace. Heat-treated and brazed together. In such brazing, a brazing material and a flux are provided in advance at the main points of each member.

  As shown in FIGS. 2 to 5, the tank 400 of this example includes a first tank member 410 and a second tank member 420 that are assembled together to form a tubular body 400 a, and a first tank member 410 and a second tank member 420. And a partition member 430 that is disposed between and separates the inside of the tubular body 400a. In the first tank member 410, holes 411 into which the end portions of the tubes 200 are inserted are arranged at a predetermined pitch. The first tank member 410 and the second tank member 420 are plastic so that a cross-section perpendicular to the longitudinal direction of the tank 400 is curved after the plate-shaped material is pressed or roll-formed into a predetermined shape. It is created by transforming. Moreover, the partition member 430 is a plate provided with an edge that matches the inner surface of the tube body 400a, and is provided at the upper and lower ends of each tube body 400a and at a predetermined portion in the middle of each tube body 400a.

  In the case of this example, a plurality of convex portions 421 are provided on the inner surface of the second tank member 420. Each convex portion 421 has a first contact portion 421 a that contacts the edge of the first tank member 410 and a second contact portion 421 b that contacts the partition member 430. Further, these convex portions 421 are provided in the press processing or roll forming processing described above, and a concave portion 421c accompanying the processing is formed on the outer surface of the second tank member 420. In addition, when the convex part 421 is continuing in the circumferential direction of the tank 400, the plastic deformation performed after press work or roll forming becomes difficult. Therefore, in this example, such inconvenience is avoided by providing convex portions 421 on both sides of the second tank member 420 with respect to the circumferential direction of the tank 400. That is, according to such a configuration, the processing efficiency of the second tank member 420 can be improved.

  The partition member 430 includes a stepped portion 431 fitted to the edge of the first tank member 410, and a protruding piece 432 protruding toward the second tank member 420. The partition member 430 is assembled with the second tank member 420 by being inserted between the second contact portions 421b of the plurality of convex portions 421. A projecting piece engaging hole 422 that engages the projecting piece 432 is provided at a main point of the second tank member 420, and the partition member 430 holds the projecting piece 432 in the projecting piece engaging hole 422. At the same time, it is sandwiched between the plurality of convex portions 421.

  Then, after assembling the second tank member 420 and the partition member 430, they are assembled with the first tank member 410. The first tank member 410 is assembled by inserting edges on both sides thereof into the second tank member 420. The first tank member 410 is positioned by the edges of both sides thereof abutting against the first abutting portion 421a of the plurality of convex portions 421 and the step portion 431 of the partition plate 430.

  That is, the first tank member 410 and the second tank member 420 are positioned with respect to each other by the first contact portion 421a, and the partition member 430 is positioned with respect to the cylindrical body 400a by the second contact portion 421b. .

  According to the brazing described above, the edge of the partition member 430 is brazed to the inner surface of the cylindrical body 400a, and the first abutting portion 421a is brazed to the first tank member 410, and the second abutting is performed. The part 421b is brazed to the partition member 430. The partition failure inside the cylinder body 400a due to the partition member 430 may be caused by the assembly accuracy between the first tank member 410 and the second tank member 420, or the cylinder body 400a generated at the joint of the first tank member 410 and the second tank member 420. According to the present example, due to poor brazing with the partition member 430, positioning is accurately performed by the convex portion 421 provided in the second tank member 420, and the first contact at the convex portion 421 is performed. Such inconvenience is reliably avoided by brazing the part 421a and the second contact part 421b. In particular, if the partition member 430 is positioned at the second abutting portion 421b, the partition member can be reliably prevented from being tilted and accurately brazed. If the first tank member 410 and the second tank member 420 are slightly displaced with respect to the longitudinal direction of the tank 400 when the tank 400 is assembled, this causes the partition member 430 to be inclined. Accordingly, such inconvenience can be prevented in advance.

  In this example, the convex portion 421 is provided on the second tank member 420. Alternatively, as shown in FIG. 6, the convex portion 412 may be provided on the first tank member 410. Each convex part 412 shown in the figure has a first contact part 412a that contacts the edge of the second tank member 420 and a second contact part 412b that contacts the partition member 430. . Other basic configurations are the same as those described above.

  Further, the convex portions 412 of the first tank member 410 or the convex portions 421 of the second tank member 420 may be arranged at a predetermined pitch over the longitudinal direction of the tubular body 400a. The partition member 430 is positioned with respect to a predetermined one of the convex portions arranged in a line. According to such a configuration, the first member 410 or the second member 420 provided with the convex portion can be applied to a member having a different position of the partition member 430, and its versatility is reliably improved. .

  As described above, the heat exchanger 1 of this example is configured by more rationally configuring the tank 400, and can be suitably used as a radiator of a refrigeration cycle for in-vehicle air conditioning. Of course, the structure of each part in the heat exchanger 1 can be appropriately changed in design within the technical scope described in the claims, and is not limited to the illustrated example. The configuration of the tank 400 in this example can also be applied to various other heat exchangers. For example, the present invention can be applied to a radiator that cools cooling water of an automobile.

  The heat exchanger of the present invention can be suitably used as a radiator for a refrigeration cycle or a radiator for an automobile.

It is a front view which concerns on the Example of this invention and shows a heat exchanger. (First embodiment) It is an upper right perspective view which concerns on the Example of this invention and shows the principal part of a heat exchanger. (First embodiment) It is a disassembled upper right perspective view which concerns on the Example of this invention and shows a tank. (First embodiment) It is an exploded upper left perspective view showing a tank concerning an example of the present invention. (First embodiment) It is an upper surface sectional view showing a tank concerning an example of the present invention. (First embodiment) It is an upper surface sectional view showing a tank concerning an example of the present invention. (Second embodiment)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger 200 Tube 300 Fin 400 Tank 400a Tube 401 Inlet part 402 Outlet part 410 1st tank member 411 Hole part 420 2nd tank member 421 Convex part 421a 1st contact part 421b 2nd contact part 421c Concave part 422 Projection piece engagement hole 430 Partition member 431 Step part 432 Projection piece 500 Side plate

Claims (3)

In a heat exchanger that includes a tube that circulates a medium and a tank that is connected to an end of the tube, and in which the medium performs heat exchange with heat transmitted to the tube,
The tank is a partition that is disposed between the first tank member and the second tank member that are assembled with each other to form a tubular body, and the first tank member and the second tank member to partition the interior of the tubular body. With members,
The first tank member is provided with a hole for inserting the end of the tube, and a convex portion is provided on one inner surface of the first tank member and the second tank member,
The convex portion includes a first contact portion that contacts the other of the first tank member and the second tank member, and a second contact portion that contacts the partition member. Exchanger.   The heat exchanger according to claim 1, wherein a plurality of the convex portions are provided, and the partition member is sandwiched between the convex portions.   The heat exchanger according to claim 1 or 2, wherein the convex portions are arranged at a predetermined pitch along the longitudinal direction of the tubular body.

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