KR101154735B1

KR101154735B1 - Exhaust duct structure of high voltage battery

Info

Publication number: KR101154735B1
Application number: KR1020100091988A
Authority: KR
Inventors: 박건호
Original assignee: 기아자동차주식회사; 현대자동차주식회사
Priority date: 2010-09-17
Filing date: 2010-09-17
Publication date: 2012-06-08
Also published as: KR20120029880A

Abstract

The present invention provides an exhaust duct structure extending from a high voltage battery through a hydrogen tank and a rear floor panel to a trunk room. A reinforcement part having a rigid panel forming an air passage; A first exhaust duct connected to an outlet of the high voltage battery and coupled to a bottom surface of a rear floor panel and connected to the air passage; And one end is coupled to the upper surface of the rigid panel is connected to the air passage, the other end includes a second exhaust duct extending to the trunk room.

Description

Exhaust duct structure of high voltage battery

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust duct structure for exhausting hot air cooled by high-voltage batteries of all vehicles (hereinafter, referred to as high-voltage battery-mounted vehicles) on which high-voltage batteries, such as fuel cell vehicles, electric vehicles, and hybrid vehicles, are mounted.

In general, in a vehicle equipped with a high voltage battery, a battery used as a driving source is used in a large amount, and a solution such as a battery cooling problem caused by the use of such a battery has emerged as a very important problem.

In particular, in the case of a vehicle with a series high voltage battery, the driving power of the engine is converted into electricity and stored in the battery, and power is used to operate the driving motor, thereby increasing the capacity and size of the battery.

In general, the battery system of a vehicle equipped with a high voltage battery is forcibly inhaling the air inside the vehicle through a motor-driven blower, spraying it with a battery, cooling it, and then discharging it to the outside of the vehicle (eg, a trunk room, etc.). (High-voltage batteries are vulnerable to moisture, so rainwater can penetrate into the battery when discharged outside, and most of them are discharged indoors.

That is, in the high voltage battery system of the conventional high voltage battery mounted vehicle, as shown in FIG. 1, the high voltage battery 10 is provided at the bottom of a single row sheet (not shown), and the upper portion of the high voltage battery 10 is located. The center console box part is provided with an inlet 11 for sucking air to cool the battery, and the heated air that cools the battery is connected between the hydrogen tank 20 (in the case of a hybrid vehicle) and the rear floor panel 30. It is discharged to the exhaust duct 40 which extends past the trunk room.

However, the exhaust duct 40 extending from the high-voltage battery system of the conventional high-voltage battery-mounted vehicle to the trunk room has a sharp cross-sectional area for passing between the hydrogen tank 20 (fuel barrel in the case of a hybrid vehicle) and the rear floor panel 30. There is a problem that the narrowing bottleneck occurs, and thus there is a problem that the cooling performance is lowered because the discharge of the warmed air is not made smoothly.

The technical problem to be solved by the present invention is to improve the exhaust duct structure of the high voltage battery by using the upper surface of the rear floor panel, which occurs between the rear floor panel and the hydrogen tank (fuel tank in the hybrid vehicle). It is to provide an exhaust duct structure of a high voltage battery to prevent the bottleneck.

As a means for achieving the above technical problem, the exhaust duct structure extending from the high voltage battery of the present invention through the hydrogen tank (fuel barrel in the case of a hybrid vehicle) and the rear floor panel to the trunk room is recessed downward from the upper surface of the rear floor panel. A reinforcing part having a recessed part formed on the recessed part, the reinforcing part having a rigid panel coupled to an upper surface of the recessed part and forming an air passage therebetween; A first exhaust duct connected to an outlet of the high voltage battery and coupled to a bottom surface of a rear floor panel and connected to the air passage; And one end is coupled to the upper surface of the rigid panel is connected to the air passage, the other end includes a second exhaust duct extending to the trunk room.

The rigid panel is coupled to the upper surface of the depression, and forms the same horizontal surface as the upper surface of the rear floor panel.

The reinforcement part is formed long in the vehicle width direction.

According to the present invention, the rigid panel is coupled with the upper surface of the rear floor panel moved downward to form a reinforcement portion, and an exhaust duct structure connecting the reinforcement portion and the exhaust duct is configured to provide a structure between the rear floor panel and the hydrogen tank. Exhaust duct cross-sectional area can be increased to prevent bottlenecks, thereby improving cooling performance.

1 is a perspective view showing a battery system of a conventional high-voltage battery mounted vehicle.
Fig. 2 is a side view of Fig. 1; Fig.
Figure 3 is a side view showing the exhaust duct structure of the high voltage battery of the present invention.
4 is a cross-sectional view taken along the line AA shown in FIG.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

In the duct structure of the high voltage battery of the present invention, a portion of the rear floor panel 200 is recessed downward in the direction of the hydrogen tank 300 to form the depression 421, and the rigid panel 422 is coupled to the depression 421. To form an air duct 423 to form a reinforcement part 420, and connect the reinforcement part 420 to the first and second exhaust ducts 410 and 430 to form an exhaust duct structure. This technology prevents bottlenecks and thus increases cooling performance.

As shown in FIG. 3, the duct structure of the high voltage battery of the present invention is provided at the bottom of a single row sheet (not shown), and an intake port 110 for inhaling air is formed on an upper surface of the high voltage battery. A high voltage battery 100 having a discharge port 120 for discharging hot air, extending from a discharge port 120 of the high voltage battery 100 to a trunk room between the rear floor panel 200 and the hydrogen tank 300; It includes an exhaust duct 400 for discharging the warmed air discharged from the high voltage battery 100 to the outside.

The exhaust duct 400 is for quickly discharging the warmed air cooled by the high voltage battery 100 to the outside without a bottleneck, and the reinforcement part 420 formed on the rear floor panel 200, the high voltage A first exhaust duct 410 connecting the battery 100 and the reinforcement part 420, and a second exhaust duct 430 extending from the reinforcement part 420 to the trunk room.

The reinforcement part 420 forms a depression 421 such that one side of the rear floor panel 200 corresponding to the hydrogen tank 300, that is, the upper surface, is recessed downward to form the depression 421 as a hydrogen tank ( It is located close to the upper surface of 300). The upper surface of the depression 421 is coupled to the rigid panel 422 having a duct structure to close the upper portion of the depression 421, and thus an air passage between the depression 421 and the rigid panel 422. 423). In this case, the rigid panel 422 is formed to be the same horizontal surface as the upper surface of the rear floor panel 200, thereby preventing the occurrence of a problem when mounting a two-row sheet.

As shown in FIG. 4, the reinforcement part 420 is formed long in the vehicle width direction to further prevent rapid exhaust and bottleneck of the exhaust air.

The first exhaust duct 410 is a passage through which warmed air passes in the high voltage battery 100, and one end thereof is coupled to be connected to the outlet 120 of the high voltage battery 100, and the other end thereof is the rear floor panel 200. It is coupled to the bottom of the air passage 423 and connected.

The second exhaust duct 43 is a passage for discharging the warmed air introduced into the reinforcing part 420 to the outside, and one end thereof is coupled to the upper surface of the rigid panel 422 so as to be connected to the air passage 423. The other end extends to the trunk room.

As described above, the exhaust duct structure of the high voltage battery according to the present invention includes an exhaust including the reinforcement part 420 and the first and second exhaust ducts 410 and 430 using one side of the rear floor panel 200 through which the exhaust duct passes. By forming the duct 400, a large duct space between the rear floor panel 200 and the hydrogen tank 300 can be secured, thereby preventing bottlenecks in the exhaust air, thereby improving cooling performance. have.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: high voltage battery 200: rear floor panel
300: hydrogen tank 400: exhaust duct section
410: first exhaust duct 420: reinforcement
430: second exhaust duct

Claims

An exhaust duct structure extending from the high voltage battery through the hydrogen tank and the rear floor panel to the trunk room,
A reinforcement part having a depression formed to be recessed downward from an upper surface of the rear floor panel, and a rigid panel coupled to the depression top surface and forming an air passage between the depressions;
A first exhaust duct connected to an outlet of the high voltage battery and coupled to a bottom surface of a rear floor panel and connected to the air passage; And
One end is coupled to the upper surface of the rigid panel connected to the air passage, the other end of the high voltage battery exhaust duct structure including a second exhaust duct extending to the trunk room.

The method according to claim 1,
The rigid panel is coupled to the upper surface of the recess, the exhaust duct structure of the high voltage battery to form the same horizontal surface as the upper surface of the rear floor panel.

The method according to claim 1,
The reinforcement portion exhaust duct structure of the high voltage battery is formed long in the vehicle width direction.