Structure of soundproof cover for engine room

A structure of a soundproof cover for an engine room is mounted on a body frame at a rear side of the engine room in which an engine is mounted. The structure may include two or more piece members that are detachably coupled to each other and collectively form the soundproof cover in a panel shape. The soundproof cover is to be mounted on the body frame so that one side surface of the soundproof cover is directed toward the engine and the other side surface of the soundproof cover is directed toward an interior of a vehicle.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority of Korean Patent Application Numbers 10-2013-38224 filed on Apr. 8, 2013 and 10-2014-21325 filed on Feb. 24, 2014, the entire contents of which applications are incorporated herein for all purposes by this reference, and these patent applications are supported by WC-300 project.

BACKGROUND OF INVENTION

1. Field of Invention

The present invention relates to a structure of a soundproof cover for an engine room which is mounted in an engine room so as to prevent noise occurring in an engine from entering the interior of a vehicle, and more particularly, to a structure of a soundproof cover for an engine room which is configured to be dividable into two or more parts so as to improve performance in preventing inflow noise and in providing convenience in replacing components.

2. Description of Related Art

An engine of a passenger vehicle is mounted in an engine room that is provided at a front side of a body frame of a vehicle body, and coupled to the body frame through a vibration isolating device such as an engine mount, and a roll rod in order to prevent vibration and noise from entering the interior of the vehicle.

As illustrated inFIGS. 1A and 1B, in order to additionally inhibit noise generated in an engine100from entering the interior of the vehicle, a soundproof cover4is mounted on a body frame1between an engine room2and the interior3of the vehicle. The general soundproof cover4in the related art is made of synthetic resin, manufactured in the form of an integral panel, and attached to the body frame1.

However, the soundproof cover4in the related art is formed as an integral body, and thus has a limitation in optimizing NVH (noise, vibration, and harshness) performance. That is, it is necessary to mount the soundproof cover, which is partially made of different materials, in accordance with a distance and a mounting position from noise sources (an engine, a transmission, hydraulic devices, and the like), and because the entire soundproof cover needs to be detached so as to repair the vehicle, there is a problem in that A/S convenience deteriorates.

SUMMARY OF INVENTION

The present invention has been made in an effort to provide a soundproof cover for an engine room which has two or more (preferably four in some cases) piece members that are detachably coupled to each other, such that soundproof performance may be improved by the piece members made of different materials, and the soundproof cover may be partially detached or mounted at the time of maintenance of a vehicle.

Various aspects of the present invention provide a structure of a soundproof cover for an engine room which is mounted at a predetermined position of a body frame, which partitions an engine room and the interior of a vehicle, at a rear side of an engine room in which an engine is mounted. The structure may include two or more piece members that are detachably coupled to each other and collectively form the soundproof cover in a panel shape, wherein the soundproof cover is to be mounted on the body frame so that one side surface of the soundproof cover is directed toward the engine and the other side surface of the soundproof cover is directed toward an interior of a vehicle.

The soundproof cover according to an aspect of the present invention may be configured by coupling four piece members so that the soundproof cover may be divided into two piece members in a longitudinal direction and a lateral direction, respectively, and thereby, the soundproof cover may be divided into four piece members.

Further, each of the piece members may have a flange portion formed along an edge thereof and the flange portion may have a groove into which an end of a neighboring piece member is to be inserted, and in a state in which the end of the neighboring piece member is inserted into the groove of the flange portion (in a state in which the piece members are temporarily assembled), a fastener may be provided to couple the piece members by penetrating the flange portion and the end of the neighboring piece member.

In addition, the soundproof cover in the engine room may be divided into at least two piece members, and in the engine room, the piece members may be coupled to each other using an adhesion unit that is detachable.

According to the present invention having the aforementioned configuration, the soundproof cover may be partially separated such that the soundproof cover may be configured by coupling soundproof members made of different types of materials, thereby improving soundproof performance, and the soundproof cover may be partially detached at the time of maintenance and repair of a vehicle, thereby improving maintainability.

In addition, the piece members each may have the flange portion which is formed along an edge thereof and has a groove such that the neighboring piece members may be fixed while being temporarily assembled with each other, thereby easily installing and replacing the piece members.

In addition, according to the soundproof cover for an engine room of the present invention, the piece members for the engine room are attached to each other using the adhesion unit, such that upper partition walls in the engine room may be easily detached without separating the engine from the engine room, therefore improving convenience of maintenance, and reducing costs required for separating the engine.

DETAILED DESCRIPTION

Referring toFIG. 2, a soundproof cover10of the present invention is mounted on a body frame1at a rear side of an engine room2in which an engine is mounted, so as to prevent noise from penetrating between the interior of a vehicle and the engine room2.

The soundproof cover10according to various embodiments of the present invention has a predetermined area, and is formed in the form of a panel (plate) which has a bent shape in accordance with a position where the soundproof cover10is attached. Further, the soundproof cover10is mounted on the body frame1so that one side surface of the soundproof cover10is directed toward the engine, and the other side surface of the soundproof cover10is directed toward the interior of the vehicle, and the soundproof cover10has a plurality of piece members such as four piece members, that is, a first piece member11, a second piece member12, a third piece member13, and a fourth piece member14, which are detachably or separably coupled to each other.

The soundproof cover10may be configured to be divided into various shapes and sizes in accordance with a shape of the body frame1and arrangement of mounted components. As an example, the soundproof cover10according to various embodiments of the present invention is configured to be divided into two piece members in a lateral direction and a longitudinal direction, respectively, such that the soundproof cover10is divided into four piece members.

According to the soundproof cover10of the present invention which may be divided into four piece members as described above, for example, in a case in which it is necessary to repair and replace a brake booster, only the third piece member13, which is adjacent to the first piece member11and the fourth piece member14, may be detached instead of unnecessarily detaching the entire soundproof cover10, and only the third piece member13may be coupled again.

Meanwhile, in various embodiments of the present invention, in order to improve assembly convenience, the respective piece members may be mounted on the body frame1in a state in which two piece members are temporarily assembled, respectively, or three piece members are temporarily assembled.

That is, as illustrated inFIG. 4, the first piece member11and the second piece member12may be temporarily assembled as a single assembly, and then first mounted on the body frame1, and thereafter, an assembly of the third piece member13and the fourth piece member14may be mounted on the body frame1.

Moreover, the piece members of the present invention each has a flange portion A which is formed along an edge thereof which is to be adjacent to a neighboring piece member, and has a groove into which an end of the neighboring piece member may be inserted. In more detail, referring toFIG. 5, the piece members are temporarily assembled in a state in which an end B of the neighboring piece member is inserted into the groove of the flange portion A, and when the piece members are mounted on the body frame1after the piece members are temporarily assembled, a fastener15couples the piece members while penetrating the flange portion A and the end B of the neighboring piece member.

Furthermore, the piece members of the present invention may have at least one adhesion unit100which detachably couples the piece members at a joint interface between any one of the piece members and another piece member, and a detail configuration of the adhesion unit100will be described below.

FIG. 6is a configuration view illustrating a state in which the piece members of the present invention are coupled to each other using an adhesion unit, andFIG. 7is an enlarged view of part C ofFIG. 6. As illustrated inFIG. 6, as coupling means for coupling the first piece member11and the second piece member12of the soundproof cover10of the present invention, and as coupling means for coupling the third piece member13and the fourth piece member14thereof, the adhesion unit100is adopted instead of the fastener15.

That is, as illustrated in the enlarged view of part C ofFIG. 7, at least one adhesion unit100is attached to the joint interface between the first piece member11and the second piece member12, and the adhesion unit100includes a to-be-adhered plate101as a lower end of the adhesion unit100, and an adhesive plate102as an upper end of the adhesion unit100, and both plates101are102are detachable from each other.

Likewise, the adhesion unit100is also attached to the joint interface between the third piece member13and the fourth piece member14.

As the to-be-adhered plate101and the adhesive plate102of the adhesion unit100, Velcro members (also called “magic tape” or “loop-and-hook fastener”) may be used. In addition, the adhesion unit100may be attached using a fixing member103such as a screw.

According to the soundproof cover10of the present invention which is configured as described above, the adhesive plate102is attached to the to-be-adhered plate101of the adhesion unit100so as to couple both partition walls in a state in which joint surfaces of the first piece member11and the second piece member12face each other, the adhesive plate102is attached to the to-be-adhered plate101of the adhesion unit100so as to couple both partition walls in a state in which joint surfaces of the third piece member13and the fourth piece member14face each other, and then a side surface of the coupled body of the first piece member11and the second piece member12is coupled to a side surface of the coupled body of the third piece member13and the fourth piece member14, such that the soundproof cover10is overall assembled.

Therefore, in a case in which only the first piece member11and the third piece member13, which are upper parts of the partition walls, are organized for maintenance of the brake booster, pipes of an air conditioner, and wiring of electric wires, which are positioned around the engine room of the vehicle, in a state in which the soundproof cover10of the present invention, which is coupled as described above, is attached in a space of the engine room, when a mechanic grasps upper portions of the first piece member11and the third piece member13, and then lifts up the first piece member11and the third piece member13, the adhesive plate102of the adhesion unit100, which is attached to each of the partition walls11and13, is detached from the to-be-adhered plate101by upward force applied to the piece members11and13, and thereby, the first piece member11and the third piece member13are easily detached.

Therefore, an operation of separating and lifting up the engine to remove a member such as the fastener15that fastens the first piece member11and the second piece member12is not necessary, thereby improving efficiency in maintenance of the vehicle, and reducing costs required for separating the engine.