KR-20260064189-A - AIR CONDITIONER FOR VEHICLE

KR20260064189AKR 20260064189 AKR20260064189 AKR 20260064189AKR-20260064189-A

Abstract

A vehicle air conditioning system is disclosed having an improved pipe fixing structure that improves assembly, implements a double insulation structure, enables the common use of brackets, and enhances versatility. The vehicle air conditioning system has a piping system in which a coolant flows inside and is fixed to a vehicle body. The system comprises a bracket that surrounds and supports the pipe and is fastened to the vehicle body, wherein a fastening hole for fastening to the vehicle body is formed in the bracket, and the bracket has an opening that opens at least one side of the fastening hole.

Inventors

맹찬주
박태영
정현권
허 헌

Assignees

한온시스템 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (16)

In a vehicle air conditioning system having a piping system fixed to the vehicle body through which a coolant flows, It is equipped with a bracket that wraps around and supports the pipe and is fastened to the vehicle body, and A fastening hole for fastening to the vehicle body is formed in the above bracket, and The above bracket is a vehicle air conditioning device having a slit that opens at least one side of the above fastening hole.
In Article 1, A flexible insulating material is coupled to the above fastening hole, and A vehicle air conditioning device having a split portion formed in the insulator corresponding to a split portion of a bracket.
In Article 2, A bush made of a rigid material is coupled to the above insulator, and A vehicle air conditioning device in which a split portion corresponding to the split portion of the bracket and the split portion of the insulator is formed in the bushing.
In Paragraph 3, A vehicle air conditioning device characterized in that the above bushing has a fixing part for fixing the insulator to the bracket.
In Paragraph 3, A vehicle air conditioning system characterized by further providing an insulator made of a flexible material between the pipe and the bracket.
In Paragraph 3, The above insulator is a vehicle air conditioning device having a first surface in contact with the bush or vehicle body surface and a second surface in contact with the bracket.
In Article 6, The insulator is composed of a pair of symmetrical parts spaced apart in the direction of bolt insertion and a connecting part connecting the symmetrical parts. A vehicle air conditioning device in which the symmetrical part has the first surface formed on the outer surface in a spaced direction and the second surface formed on the inner surface.
In Article 7, A vehicle air conditioning device characterized by the above-mentioned insulator being symmetrical in the spacing direction of the symmetrical part.
In Article 8, The above insulator is a vehicle air conditioning device in which both sides are symmetrical with respect to the center of the opening in a direction perpendicular to the spacing direction of the symmetrical part.
In Article 7, A fixing hole is formed in the above bracket that penetrates in the direction of bolt insertion, and A vehicle air conditioning device characterized by the above bush having an anti-detachment projection inserted into the above fixing hole.
In Article 10, A vehicle air conditioning device characterized in that the above-mentioned fixing hole and anti-detachment projection are each formed on the opposite side of the opening of the bracket and the opening of the bush.
In Article 7, A vehicle air conditioning device characterized by the above bushing having a body portion penetrating an insulator and a head portion formed on one side of the body portion in the direction of bolt insertion and seated on a first surface of the insulator.
In Article 12, A vehicle air conditioning device having a bush formed on the other side of the body portion in the direction of bolt insertion and equipped with a detachment prevention stopper that prevents the bush from detaching from the insulator.
In Article 12, The above bushing is a vehicle air conditioning device equipped with a rotation prevention stopper that prevents rotation of the insulator by closely supporting the inner diameter surface of the insulator on the inner side of the opening.
In Paragraph 3, A fastening hole for inserting a bolt is formed in the above bush, and A vehicle air conditioning system characterized in that the width of the opening of the bush is formed to be smaller than the diameter of the fastening hole of the bush.
In Paragraph 3, A fastening hole for inserting a bolt is formed in the above bush, and A vehicle air conditioning unit equipped with protruding nut stoppers on both sides of the split portion of the bush to prevent nuts coupled to bolts from coming loose in the direction of the split portion of the bush.

Description

Air Conditioner for Vehicle The present invention relates to a vehicle air conditioning system, and more specifically, to a vehicle air conditioning system mounted in a vehicle that maintains conditions such as indoor temperature, humidity, airflow, and cleanliness in a state suitable for the intended purpose. Generally, a vehicle air conditioning system is a device designed to cool or heat the vehicle interior by introducing outside air into the cabin or by heating or cooling the air circulating within the cabin. The interior of the air conditioning casing is equipped with an evaporator for cooling and a heater core for heating. The vehicle air conditioning system is configured to selectively blow the air, cooled or heated by the evaporator or heater core, to various parts of the vehicle interior using a door for switching the airflow mode. In addition, the refrigerant system is composed of a compressor that compresses and discharges the refrigerant, a condenser that condenses the high-pressure refrigerant discharged from the compressor, an expansion valve that throttles the refrigerant condensed and liquefied in the condenser, and an evaporator that cools the low-pressure liquid refrigerant throttled by the expansion valve by exchanging heat with the air blown into the vehicle cabin, all connected by pipes. As such, the air conditioning system consists of multiple components located in the vehicle's interior and engine compartment, and various technologies are applied to prevent noise and vibration generated from engine compartment parts from being transmitted into the vehicle's interior. Among these components, the refrigerant piping is composed of aluminum (Al) pipes and rubber hoses, and steel brackets are typically used to secure them to the vehicle body. Referring to FIG. 1, a rubber insulator (2: Isolator) is applied between the aluminum pipe (1) and the steel bracket (3). Additionally, a rubber insulator (4: Bush Rubber) is applied between the bracket (3) and the vehicle body to provide double insulation. Through this configuration, vibrations from the compressor are blocked from being transmitted to the vehicle body, and vibrations from the vehicle body are blocked from being transmitted to the refrigerant pipe (1). The bracket (3) is assembled to the vehicle body via nuts or bolts. If only an insulator (4) is installed between the bracket (3) and the vehicle body, excessive deformation, permanent damage, or breakage may occur in the insulator (4) due to the fastening force of the nuts or bolts. To prevent this, a part called a steel bush (5) is additionally installed on the insulator (4) to prevent deformation beyond a certain degree. That is, the bracket (3) of the air conditioning pipe is assembled to the vehicle body using bolts or nuts. If a stud bolt is applied to the vehicle body, a nut is assembled, and if only threads are present, a bolt is assembled. If the volume or weight of the air conditioning pipe is large, temporary mounting of the pipe to the vehicle body is required before assembling the bolts or nuts, and stud bolts are used for temporary mounting. In this case, when the temporary mounting stud bolts are arranged in the left-right direction (vehicle width direction) and the front-rear direction, there is a problem where assembly is difficult because the bushing interferes with the protruding stud bolt when assembling to the other stud bolt after inserting the pipe bracket into one stud bolt. FIG. 1 is a perspective view illustrating a conventional pipe fixing structure, and FIGS. 2 and 3 are perspective views illustrating a piping system fixed to a vehicle body according to an embodiment of the present invention, FIG. 4 is a perspective view illustrating a bracket according to an embodiment of the present invention, and FIG. 5 is a perspective view illustrating an insulator according to one embodiment of the present invention, and FIG. 6 is a front view illustrating an insulator according to one embodiment of the present invention, and FIG. 7 is a plan view illustrating an insulator according to one embodiment of the present invention, and FIG. 8 is a perspective view illustrating a bush according to one embodiment of the present invention, and FIG. 9 is a perspective view illustrating a state in which a bushing according to one embodiment of the present invention is coupled to a bracket, and FIG. 10 is a cross-sectional view illustrating the combined state of an insulator and a bushing according to one embodiment of the present invention, and FIG. 11 is a perspective view illustrating a pipe fixing structure according to one embodiment of the present invention, and FIG. 12 illustrates the state in which the bolt is inserted in FIG. 11, and FIG. 13 is a plan view illustrating a bush according to another embodiment of the present invention, and FIG. 14 is a plan view illustrating the state in which the nut is assembled in FIG. 13, and FIG. 15 is a cross-sectional view illustratin