CN-122008778-A - Fixing component of heat exchanger

Abstract

The invention provides a fixing component of a heat exchanger. The fixing member includes a resin main body. The main body includes a base portion fixed to the vehicle body, two legs extending from the base portion (34) and sandwiching lateral end portions of the heat exchanger (16), and two engaging claws protruding inward from the two legs (36) and entering into two engaging recesses (18) provided at the lateral end portions of the heat exchanger (16). The fixing member further includes a heat insulator disposed on the inner surfaces of the two legs. The two engaging claws of the main body have distal ends where the heat insulating member is omitted. The two engaging claws of the main body have lengths such that the tips of the two engaging claws do not contact the bottom surfaces of the two engaging recesses of the heat exchanger when the fixing member is attached to the heat exchanger.

Inventors

• TSUCHIYA AKIRA

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260512

Application Date

20251023

Priority Date

20241111

Claims (5)

1. 1. A fixing member of a heat exchanger which fixes the heat exchanger to a vehicle body, wherein, The fixing member of the heat exchanger comprises a main body made of resin, The main body includes: A base portion fixed to the vehicle body; two legs extending from the base portion and sandwiching lateral ends of the heat exchanger; Two engaging claws protruding inward from the two legs and entering into two engaging recesses provided at lateral ends of the heat exchanger, The fixing member further includes a heat insulator disposed on the inner surfaces of the two legs and interposed between the inner surfaces and the lateral ends of the heat exchanger, The two said snap fingers of the body have top ends where the insulation is omitted, The two engaging claws of the main body have lengths such that the tips of the two engaging claws do not come into contact with the bottom surfaces of the two engaging recesses of the heat exchanger when the fixing member is attached to the heat exchanger.
2. 2. The stationary part of a heat exchanger as claimed in claim 1, wherein, The body includes a crotch portion connecting the base portion with the root portions of the two legs, A cutout is provided on an inner surface of the crotch portion.
3. 3. The stationary part of a heat exchanger as claimed in claim 1, wherein, The two engaging claws of the main body each have a right triangle shape with opposite sides on the base side when viewed in cross section along the direction in which the two legs extend.
4. 4. The stationary part of a heat exchanger as claimed in claim 1, wherein, The inner surfaces of the two legs of the body have two clip receiving recesses opposed to each other, A clip is inserted into the two clip receiving recesses, and widens the interval between the two legs during the process of attaching the fixing member to the heat exchanger.
5. 5. The stationary part of a heat exchanger as claimed in any one of claims 1 to 4, wherein, The heat exchanger is a gas cooler of an air conditioner that uses carbon dioxide as a refrigerant.

Description

Fixing component of heat exchanger Technical Field The present specification discloses a fixing member for a heat exchanger for fixing the heat exchanger to a vehicle body. Background A heat exchanger such as a condenser of an air conditioner and a radiator used for cooling an engine is mounted on a vehicle. The heat exchanger is fixed to the vehicle body using a fixing member. Japanese patent application laid-open publication 2019-119997 discloses a resin fastener for attaching a heat insulator to a floor beam (a portion supporting the floor of a building). Disclosure of Invention A technique for fixing a heat exchanger having an outer surface at a high temperature to a vehicle body by using a fixing member made of a resin having relatively low heat resistance has been desired. In the present specification, a fixing member including a resin body for fixing a heat exchanger to a vehicle body is disclosed. The fixing member of the heat exchanger disclosed in the present specification includes a resin main body. The main body includes a base portion fixed to the vehicle body, two legs extending from the base portion and sandwiching lateral end portions of the heat exchanger, and two engaging claws protruding inward from the two legs and into two engaging recesses provided at the lateral end portions of the heat exchanger. The fixing member further includes a heat insulator disposed on the inner surfaces of the two legs and interposed between the inner surfaces and the lateral ends of the heat exchanger. The two engagement claws of the main body have distal ends from which the heat insulating member is omitted. The two engaging claws of the main body have lengths such that the tips of the two engaging claws do not come into contact with the bottom surfaces of the two engaging recesses of the heat exchanger when the fixing member is attached to the heat exchanger. According to this configuration, since the two legs of the resin body of the fixing member are in contact with the heat exchanger via the heat insulator, the heat exchanger having the outer surface at a high temperature can be held by the two legs. In the process of attaching the fixing member to the heat exchanger, the worker widens the two legs of the main body, and places the engaging claws of the two legs on the outer surface of the end portion of the heat exchanger. Then, the worker moves the fixing member in a sliding manner, thereby engaging the two engaging claws with the two engaging recesses of the heat exchanger. In this mounting process, if the heat insulator is disposed at the distal end of the engagement claw, the heat insulator at the distal end of the engagement claw is dragged by the outer surface of the heat exchanger when the fixing member is slid, and there is a possibility that the heat insulator at other portions connected to the dragged portion may be peeled off from the main body. However, according to the above configuration, since the heat insulator is not provided at the distal end of the engagement claw, the heat insulator at the portion other than the distal end of the engagement claw can be prevented from being peeled off from the main body. When the fixing member is attached to the heat exchanger, the tip of the engagement claw of the main body does not contact the bottom surface of the engagement recess of the heat exchanger. That is, a gap exists between the tip of the engagement claw of the main body and the bottom surface of the engagement concave portion of the heat exchanger. Therefore, the engagement claw of the main body (made of resin) can be prevented from being deteriorated by the heat of the outer surface of the heat exchanger. In the fixing member of the heat exchanger of the present disclosure, the main body may include a crotch portion connecting the base portion and the root portions of the two legs, and a cutout may be provided in an inner surface of the crotch portion. According to this configuration, when the engagement claws of the two legs are placed on the outer surface of the end portion of the heat exchanger during the process of attaching the fixing member to the heat exchanger, the operator can easily widen the two legs of the main body. In the fixing member of the heat exchanger of the present disclosure, each of the two engagement claws of the main body may have a right triangle shape having opposite sides located on the base side when viewed in cross section along a direction in which the two legs extend. According to this structure, the tip of the engaging claw has a sharp shape. Therefore, in the process of mounting the fixing member on the heat exchanger, after the engaging claws of the two legs are placed on the outer surface of the heat exchanger, the friction force between the fixing member and the heat exchanger can be reduced when the fixing member is slid on the outer surface of the heat exchanger. Further, after the engagement claw engages with the engagement concave portion, since