KR20230079585A - Hydrogen tank mounting unit for vehicle - Google Patents

Abstract

Disclosed is a structure for mounting a hydrogen tank for a vehicle. A vehicle hydrogen tank mounting structure according to an exemplary embodiment of the present invention disclosed herein includes i) a front frame and a rear frame each fastened to the vehicle body at a set interval along the front and rear directions of the vehicle body, and ii) between the front frame and the rear frame. iii) a plurality of tank support frames coupled to the front frame and rear frame and connected to the center frame, iv) coupled to the center frame corresponding to each of the plurality of tank support frames, A frame reinforcement unit coupled to the tank support frames, and v) coupled to the front frame and the rear frame corresponding to each of the plurality of tank support frames, and coupled to the center frame through the plurality of tank support frames and the frame reinforcement unit. It may include a plurality of strap bands.

Description

Vehicle hydrogen tank mounting structure {HYDROGEN TANK MOUNTING UNIT FOR VEHICLE}

An embodiment of the present invention relates to a structure for mounting a hydrogen tank for a vehicle, and more particularly, to a structure for mounting a hydrogen tank for a vehicle in which a plurality of hydrogen tanks installed in a hydrogen-powered vehicle can be stably mounted on a vehicle body.

In general, hybrid vehicles, electric vehicles, and hydrogen-powered vehicles (commonly referred to as “hydrogen electric vehicles” by those skilled in the art), which are called eco-friendly vehicles, are equipped with high-voltage batteries that apply power to driving motors. Among them, the hydrogen-powered vehicle is equipped with a fuel cell system configured to charge power to a high-voltage battery.

A fuel cell system includes a hydrogen tank for storing hydrogen gas, an air compressor for supplying air, and a fuel cell stack for generating electric energy by an electrochemical reaction between hydrogen gas and air.

A hydrogen tank mounted on a hydrogen-powered vehicle stores high-pressure hydrogen gas, and the stored hydrogen gas is discharged to a high-pressure line according to the operation of a solenoid valve installed at the inlet of the hydrogen tank, and then reduced by a regulator to stack the fuel cell. supplied with In addition, in order to smoothly supply hydrogen to the fuel cell stack, a plurality of hydrogen tanks are mounted on a hydrogen powered vehicle.

Such a hydrogen tank is mounted on a frame structure fixed to a hydrogen-powered vehicle. The frame structure can reduce the number of parts, secure structural rigidity to support the hydrogen tank, and protect the hydrogen tank from shock and vibration. development is urgently needed.

Matters described in this background art section are prepared to enhance understanding of the background of the invention, and may include matters that are not prior art already known to those skilled in the art to which this technique belongs.

Embodiments of the present invention are intended to provide a vehicle hydrogen tank mounting structure capable of securing structural rigidity for supporting a plurality of hydrogen tanks with a simple configuration and protecting a plurality of hydrogen tanks from shock and vibration.

A vehicle hydrogen tank mounting structure according to an embodiment of the present invention includes i) a front frame and a rear frame respectively fastened to the vehicle body at a set interval along the front and rear directions of the vehicle body, and ii) a center disposed between the front frame and the rear frame. a frame; iii) a plurality of tank support frames coupled to the front frame and the rear frame and connected to the center frame; iv) coupled to the center frame corresponding to each of the plurality of tank support frames; A frame reinforcement unit coupled to a plurality of tank support frames, and v) coupled to the front frame and the rear frame corresponding to each of the plurality of tank support frames, the plurality of tank support frames and the frame reinforcement unit It may include a plurality of strap bands coupled to the center frame through.

In addition, in the hydrogen tank mounting structure for a vehicle according to an embodiment of the present invention, the front frame, the rear frame, and the center frame may be formed as a closed cross section of a set shape.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the front frame, the rear frame, and the center frame may be manufactured by roll forming or extrusion molding.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, each of the plurality of tank support frames is coupled to a first coupling part coupled to the front frame and the rear frame, and coupled to the frame reinforcing unit It may include a second coupling part and a round first tank support part integrally connected to the first coupling part and the second coupling part.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, a first rubber pad may be coupled to an upper surface of the first tank support part.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, each of the first coupling portion and the second coupling portion integrally extends from both ends of the first tank support portion and is folded into two layers and bonded reinforcement It may be formed by an extension.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the reinforcing extension parts may be overlapped and bonded to lower surfaces of both ends of the first tank support part.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the frame reinforcing unit is coupled to the upper surface of the center frame along the front and rear directions of the vehicle body, and the upper lane is coupled to each of the plurality of tank support frames. and lower ramps coupled to lower surfaces of the center frame along a vehicle width direction and coupled to lower surfaces of the plurality of tank support frames along vehicle body directions.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the upper lane is provided in the form of a tubular member with both ends open, and each end of the plurality of tank support frames may be coupled to an upper surface. .

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the lower ramp includes a pair of first parts coupled to the lower surface of the center frame along the vehicle width direction, and the plurality of tank support frames Each of the second parts may include another pair of second parts coupled along the front and rear directions of the vehicle body.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, each of the plurality of strap bands supports the plurality of tanks through a third coupling portion coupled to the front frame and the rear frame and a joint member. It may include a fourth coupling part coupled to the frames, the frame reinforcing unit, and the center frame, and a second tank support unit connected to the third coupling unit and the fourth coupling unit.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, a second rubber pad may be coupled to a lower surface of the second tank support part.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, i) a front frame and a rear frame respectively fastened to the vehicle body at a set interval along the front and rear directions of the vehicle body, and ii) disposed between the front frame and the rear frame iii) a plurality of tank support frames coupled to the front frame and the rear frame and connected to the center frame; iv) coupled to the center frame corresponding to each of the plurality of tank support frames; , a frame reinforcement unit coupled to the plurality of tank support frames, and v) coupled to the front frame and the rear frame corresponding to each of the plurality of tank support frames, the plurality of tank support frames, the frame reinforcement It may include a plurality of strap bands connected to a joint member fastened to the unit and the center frame, and vi) a damper spring installed on the joint member and exerting an elastic force on the plurality of strap bands.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the frame reinforcing unit is coupled to the upper surface of the center frame along the front and rear directions of the vehicle body, and the upper lane is coupled to each of the plurality of tank support frames. and lower ramps coupled to lower surfaces of the center frame along a vehicle width direction and coupled to lower surfaces of the plurality of tank support frames along vehicle body directions.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, circularly bent joint coupling portions may be formed at ends of the plurality of tank support frames.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the joint member includes a joint pin inserted into the joint coupling portion along the vehicle width direction, and vertically penetrating the joint coupling portion to be inserted into the joint pin. and joint bolts passing through the plurality of tank support frames, the upper lane, the lower lane, and the center frame in a vertical direction, and joint nuts fastened to the joint bolts.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the joint coupler may have a first through hole through which the shank of the joint bolt passes.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, a second through hole through which the shank of the joint bolt passes is formed in the joint pin, and a support groove supporting the head of the joint bolt is formed It can be.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the upper lane is provided in the form of a pipe with both ends open, and a reinforcing pipe through which the shank of the joint bolt passes through the upper lane can be combined.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the damper spring is installed on the shank of the joint bolt, is disposed between a lower washer and an upper washer fitted to the shank, and the center frame The lower surface can be supported elastically.

In addition, in the vehicle hydrogen tank mounting structure according to an embodiment of the present invention, the joint member and the damper spring may be inclined to be distant from each other along the front and rear directions of the vehicle body in correspondence with the plurality of strap bands facing each other. .

Embodiments of the present invention can reduce the overall number of parts and welds, increase support rigidity and structural rigidity for supporting a plurality of hydrogen tanks, and safely protect a plurality of hydrogen tanks from external shock and vibration. can do.

In addition, effects that can be obtained or predicted due to the embodiments of the present invention will be directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects expected according to an embodiment of the present invention will be disclosed within the detailed description to be described later.

Since these drawings are for reference in explaining exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 to 4 are perspective views illustrating a structure for mounting a hydrogen tank for a vehicle according to an embodiment of the present invention.
5 and 6 are diagrams showing a portion of a tank support frame applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.
7 and 8 are diagrams showing parts of a frame reinforcement unit applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.
9 is a view showing a strap band portion applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.
10 and 11 are diagrams illustrating a joint member and a damper spring part applied to a vehicle hydrogen tank mounting structure applied to an embodiment of the present invention.
12 is a view showing a modified example of a joint member and a damper spring applied to a vehicle hydrogen tank mounting structure applied to an embodiment of the present invention.
It should be understood that the drawings referenced above are not necessarily drawn to scale, and present rather simplified representations of various preferred features illustrating the basic principles of the present invention. The specific design features of the present invention, including, for example, specific dimensions, orientation, location, and shape, will be determined in part by the specific intended application and environment of use.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms, and is not limited to the embodiments described herein.

The terminology used herein is for the purpose of describing specific embodiments and is not intended to limit the present invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly dictates otherwise. The terms 'comprise' and/or 'comprising' as used herein indicate the presence of specified features, integers, steps, operations, elements and/or components, but not one or more other features, integers, steps, or steps. It should also be understood that does not exclude the presence or addition of s, operations, components, and/or groups thereof. As used herein, the term 'coupled' denotes a physical relationship between two components in which the components are directly connected to each other or indirectly through one or more intervening components.

Further, "vehicle", "vehicle's", "automobile" or other similar terms as used herein includes hydrogen powered vehicles. Such hydrogen-powered vehicles may include passenger automobiles including passenger cars, sport utility vehicles (SUVs), buses, trucks, and various commercial vehicles.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 are perspective views illustrating a structure for mounting a hydrogen tank for a vehicle according to an embodiment of the present invention.

1 to 4, the vehicle hydrogen tank mounting structure 100 according to an embodiment of the present invention mounts a plurality of hydrogen tanks 1 in a hydrogen-powered vehicle (commonly referred to as a 'hydrogen electric vehicle' by those skilled in the art) is supposed to do

In one example, the plurality of hydrogen tanks 1 may be composed of a liner as an inner skin and a carbon fiber composite as an outer skin provided on the outer surface of the liner, as is well known to those skilled in the art.

The vehicle hydrogen tank mounting structure 100 according to an embodiment of the present invention has a structure in which a plurality of hydrogen tanks 1 are modularized in a frame structure and the frame structure can be fastened to the underbody side of a vehicle body.

The vehicle hydrogen tank mounting structure 100 according to an embodiment of the present invention will be described below as mounting a plurality of hydrogen tanks 1 to a vehicle body of a hydrogen powered vehicle. However, it is not necessarily limited thereto, and the technical idea of the present invention can be applied to any hydrogen tank mounted on various mobile devices and power generation facilities.

In the art, the vehicle width direction (full width direction) is referred to as the L direction, the vehicle body front and rear direction (car body length direction or overall length direction) as the T direction, and the vehicle body height direction as the H direction. However, in the embodiment of the present invention, instead of setting the LTH direction as described above as the reference direction, the vehicle width direction, the front-rear direction of the vehicle body, and the vertical direction will be set, and the following components will be described.

In this specification, the 'top', 'upper', 'top' or 'upper face' of a component indicates the end, portion, end, or face of a component that is relatively upper in the drawing, and the 'lower end' of a component ', 'lower', 'bottom' or 'lower face' denotes an end, portion, end, or face of a component that is relatively lower in the drawing.

Furthermore, in this specification, an end of a component (eg, one end or another end) refers to an end of a component in any one direction, and an end of a component (eg, one end or another end). end, etc.) denotes a portion of a component that includes that end.

The vehicle hydrogen tank mounting structure 100 according to an embodiment of the present invention can secure structural rigidity for supporting a plurality of hydrogen tanks 1 with a simple configuration, and protects the plurality of hydrogen tanks 1 from shock and vibration. It is made up of a structure that can protect the

To this end, the vehicle hydrogen tank mounting structure 100 according to an embodiment of the present invention basically includes a front frame 10, a rear frame 20, a center frame 30, a plurality of tank support frames 40, It includes a frame reinforcement unit 50, a plurality of strap bands 60, a joint member 70, and a damper spring 80.

In this specification, a frame means a plurality of hydrogen tanks 1 mounted on a vehicle body. Such a frame may include various auxiliary elements such as brackets, plates, housings, bulkheads, and ribs. However, in the embodiment of the present invention, except for exceptional cases, the various sub-elements described above are collectively referred to as a frame.

In the embodiment of the present invention, the front frame 10 and the rear frame 20 are respectively fastened to the vehicle body at set intervals along the front and rear directions of the vehicle body.

The front frame 10 and the rear frame 20 may be fastened to the vehicle body through a plurality of mounting parts 11 and 21 . In one example, the plurality of mounting parts 11 and 21 may be pipe nuts welded to the front frame 10 and the rear frame 20, respectively.

In an embodiment of the present invention, the center frame 30 supports the plurality of hydrogen tanks 1 together with the front frame 10 and the rear frame 20 . The center frame 30 is disposed between the front frame 10 and the rear frame 20 .

Here, the front frame 10, the rear frame 20, and the center frame 30 include closed sections 13, 23, and 33 of a set shape (eg, a rectangular shape). Furthermore, the front frame 10, the rear frame 20, and the center frame 30 may be manufactured by roll forming or extrusion molding.

In an exemplary embodiment of the present invention, the plurality of tank support frames 40 support lower surfaces of the plurality of hydrogen tanks 1 . The plurality of tank support frames 40 are coupled to the front frame 10 and the rear frame 20 and may be substantially connected to the center frame 30 .

5 and 6 are diagrams showing a portion of a tank support frame applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.

5 and 6, each of the plurality of tank support frames 40 according to an embodiment of the present invention includes a first coupling part 41, a second coupling part 43, and a first tank support part. (45) is included.

The first coupling part 41 is formed at one end of each of the plurality of tank support frames 40 . The first coupling part 41 is coupled to the front frame 10 and the rear frame 20 . In one example, the first coupling part 41 may be fastened to the front frame 10 and the rear frame 20 (see FIGS. 1 to 4) through bolts B and nuts N.

The second coupling part 43 is formed at the other end of each of the plurality of tank support frames 40 . The second coupling part 43 may be coupled to a frame reinforcing unit 50 to be described later.

The first tank support part 45 is provided in a round shape to substantially support the lower surfaces of the plurality of hydrogen tanks 1, and is integrally connected to the first coupling part 41 and the second coupling part 43. do.

Here, a first rubber pad 47 configured to support lower surfaces of the plurality of hydrogen tanks 1 is coupled to the upper surface of the first tank support part 45 .

Furthermore, each of the first coupling portion 41 and the second coupling portion 43 extends from both ends of the first tank support portion 45 and is folded into two layers and joined. Formed by a reinforced extension portion 49 It can be. The reinforcing extensions 49 may overlap and bond to the lower surfaces of both ends of the first tank support 45 .

Referring to FIGS. 2 to 4 , in an embodiment of the present invention, the frame reinforcing unit 50 reinforces the rigidity of the plurality of tank support frames 40 .

The frame reinforcement unit 50 is coupled to the center frame 30 corresponding to each of the plurality of tank support frames 40 and coupled to the plurality of tank support frames 40 .

7 and 8 are diagrams showing parts of a frame reinforcement unit applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.

7 and 8 , the frame reinforcement unit 50 according to the embodiment of the present invention includes an upper lane 51 and a lower lane 53.

The upper lane 51 is coupled to the upper surface of the center frame 30 along the front and rear directions of the vehicle body, and is coupled to each of the second coupling parts 43 of the plurality of tank support frames 40 .

The upper lane 51 is provided in a tubular shape with both ends open, and second coupling parts 43 of each of the plurality of tank support frames 40 are coupled to the upper surface.

The lower ramp 53 is coupled to the lower surface of the center frame 30 along the vehicle width direction and coupled to the lower surface of the plurality of tank support frames 40 along the front-rear direction of the vehicle body.

Here, a joint mounting hole 55 is formed in the center of the lower lane 53. Furthermore, the lower ramp 53 includes a pair of first parts 57 coupled to the lower surface of the center frame 30 along the vehicle width direction and lower surfaces of each of the plurality of tank support frames 40. It includes another pair of second parts 59 coupled along the front and rear directions of the vehicle body.

Referring to FIGS. 1 to 4 , in an embodiment of the present invention, the plurality of strap bands 60 connect the plurality of hydrogen tanks 1 supported by the plurality of tank support frames 40 to the front frame ( 10), the rear frame 20, and the center frame 30.

The plurality of strap bands 60 are coupled to the front frame 10 and the rear frame 20 corresponding to each of the plurality of tank support frames 40, and the plurality of tank support frames 40 and the frame It is coupled to the center frame 30 through the reinforcing unit 50 .

9 is a view showing a strap band portion applied to a vehicle hydrogen tank mounting structure according to an embodiment of the present invention.

Referring to FIG. 9 , each of the plurality of strap bands 60 according to an embodiment of the present invention includes a third coupling portion 61, a fourth coupling portion 63, and a second tank support portion 65. contains

The third coupling part 61 is provided at one end of each of the plurality of strap bands 60 . The third coupling part 61 is coupled to the front frame 10 and the rear frame 20 (see FIGS. 1 to 4). In one example, the third coupling part 61 may be fastened to the front frame 10 and the rear frame 20 through bolts (B) and nuts (N).

The fourth coupling part 63 is coupled to the plurality of tank support frames 40, the frame reinforcing unit 50, and the center frame 30 through a joint member 70 to be described later.

The second tank support part 65 is provided in a round shape to substantially support the upper surfaces of the plurality of hydrogen tanks 1, and is integrally connected to the third coupling part 61 and the fourth coupling part 63. do.

Here, a second rubber pad 67 configured to support the upper surfaces of the plurality of hydrogen tanks 1 is coupled to the lower surface of the second tank support part 65 .

Furthermore, a circularly bent joint coupling portion 69 is formed at the fourth coupling portion 63 . Here, a joint member 70 to be described later is coupled to the joint coupling portion 69, and a first through hole 69a penetrating in the vertical direction is formed in the joint coupling portion 69.

10 and 11 are diagrams illustrating a joint member and a damper spring part applied to a vehicle hydrogen tank mounting structure applied to an embodiment of the present invention.

9 to 11 , in the embodiment of the present invention, the joint member 70 connects each of the fourth coupling parts 63 of the plurality of strap bands 60 to the plurality of tank support frames 40 ), the frame reinforcement unit 50, and the center frame 30.

The joint member 70 is fastened to the plurality of tank support frames 40, the frame reinforcing unit 50, and the center frame 30, and is connected to the joint coupling portion 69 of the fourth coupling portion 63. do.

The joint member 70 includes a joint pin 71, a joint bolt 73, and a joint nut 75.

The joint pin 71 is inserted into the joint coupling portion 69 of the fourth coupling portion 63 along the vehicle width direction.

The joint bolt 73 includes a head 74a and a shank 74b. The shank 74b vertically penetrates the first through hole 69a of the joint coupling portion 69 of the fourth coupling portion 63 and is inserted into the joint pin 71 .

The shank 74b is formed by the second coupling part 43 of the plurality of tank support frames 40, the upper lane 51 of the frame reinforcement unit 50, the lower lane 53, and the center frame 30 ) in the vertical direction.

To this end, a second through hole 77 through which the shank 74b of the joint bolt 73 passes is formed in the joint pin 71, and a support groove 78 supporting the head 74a of the joint bolt 73 ) is formed.

Here, a reinforcing pipe 79 through which the shank 74b of the joint bolt 73 passes is coupled to the inside of the upper lane 51. Furthermore, the joint coupling part 69 of the fourth coupling part 63 can rotate in the front-rear direction of the vehicle body through the joint pin 71 according to the behavior of the vehicle body.

And, the joint nut 75 is fastened to the shank 74b of the joint bolt 73.

In an embodiment of the present invention, the damper spring 80 is designed to exert an elastic force (eg, damping force) on the plurality of strap bands 60 . The damper spring 80 is installed on the joint member 70 .

The damper spring 80 is installed on the shank 74b of the joint bolt 73 between the lower surface of the center frame 30 and the joint nut 75.

The damper spring 80 is disposed between the lower washer 81 and the upper washer 83 fitted to the shank 74b and elastically supports the lower surface of the center frame 30 .

On the other hand, as shown in FIG. 12, the joint member 70 and the damper spring 80 as described above correspond to the fourth coupling part 63 of the plurality of strap bands 60 facing each other in front and rear of the vehicle body. They may also be inclined to be spaced apart from each other along the direction.

Reference numeral 90 not described in FIGS. 1 to 4 denotes a reinforcing frame, and the reinforcing frame 90 may be fastened to the underbody of the vehicle body.

Therefore, according to the vehicle hydrogen tank mounting structure 100 according to the embodiment of the present invention configured as described above, the front frame 10 and the rear frame 20 are configured to support the plurality of hydrogen tanks 1 on the vehicle body. ), and the center frame 30 has a structure integrally manufactured to have a predetermined closed section 13, 23, 33 by roll forming or extrusion molding. Accordingly, in the embodiment of the present invention, the overall number of parts and welding parts of the vehicle hydrogen tank mounting structure 100 can be reduced, and furthermore, the weight of the hydrogen-powered vehicle can be reduced.

In addition, in the embodiment of the present invention, the first coupling portion 41 and the second coupling portion 43 of the plurality of tank support frames 40 supporting the lower portions of the plurality of hydrogen tanks 1 are reinforced. The two layers are overlapped and bonded by the extension part 49, and the reinforcing extension part 49 is overlapped and bonded to the lower surfaces of both ends of the first tank support part 45. Therefore, in the embodiment of the present invention, it is possible to increase the support rigidity of the plurality of hydrogen tanks 1 without applying separate reinforcing members, thereby reducing the overall number of parts.

Furthermore, in the embodiment of the present invention, as the frame reinforcement unit 50 including the upper lane 51 and the lower lane 53 is coupled to the center frame 30, the center frame 30 and a plurality of Structural rigidity of the tank support frames 40 may be secured.

Furthermore, in the embodiment of the present invention, a plurality of strap bands 60 configured to support the upper portions of the plurality of hydrogen tanks 1 are connected to the plurality of tank support frames 40 through the joint member 70, It is coupled to the frame reinforcement unit 50 and the center frame 30, and the damper spring 80 is mounted to the joint member 70.

Thus, in the embodiment of the present invention, the impact and vibration energy along the vertical direction while the hydrogen-powered vehicle is running, the impact energy and the load (rapid acceleration or sudden braking) along the front-rear direction of the vehicle body are transferred to the joint member 70 and the damper spring 80 ) can be absorbed.

Therefore, in the embodiment of the present invention, it is possible to safely protect the plurality of hydrogen tanks 1 while stably restricting the flow of the plurality of hydrogen tanks 1.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and it is possible to carry out various modifications within the scope of the claims and detailed description of the invention and the accompanying drawings, and this is also the present invention. It goes without saying that it falls within the scope of the invention.

1: hydrogen tank 10: front frame
11, 21: mounting portion 13, 23, 33: lung section
20: rear frame 30: center frame
40: tank support frame 41: first coupling part
43: second coupling part 45: first tank support part
47: first rubber pad 49: reinforcing extension
50: frame reinforcement unit 51: upper rainf
53: lower lane 55: joint mounting hole
57 first part 59 second part
60: strap band 61: third coupling part
63: fourth coupling part 65: second tank support part
67: second rubber pad 69: joint coupling part
69a: first through hole 70: joint member
71: joint pin 73: joint bolt
74a: head 74b: shank
75: joint nut 77: second through hole
78: support groove 79: reinforcement pipe
80: damper spring 81: lower washer
83: upper washer 90: reinforcement frame
B: Bolt N: Nut
100: vehicle hydrogen tank mounting structure

Claims (20)

a front frame and a rear frame respectively fastened to the vehicle body at set intervals along the front and rear directions of the vehicle body;
a center frame disposed between the front frame and the rear frame;
a plurality of tank support frames coupled to the front frame and the rear frame and connected to the center frame;
a frame reinforcement unit coupled to the center frame corresponding to each of the plurality of tank support frames and coupled to the plurality of tank support frames; and
a plurality of strap bands coupled to the front frame and the rear frame corresponding to each of the plurality of tank support frames and coupled to the center frame through the plurality of tank support frames and the frame reinforcing unit;
Vehicle hydrogen tank mounting structure comprising a. According to claim 1,
The hydrogen tank mounting structure for a vehicle in which the front frame, the rear frame, and the center frame are formed of a closed cross section of a set shape. According to claim 2,
The front frame, the rear frame, and the center frame are a vehicle hydrogen tank mounting structure manufactured by roll forming or extrusion molding. According to claim 2,
Each of the plurality of tank support frames,
A first coupling part coupled to the front frame and the rear frame;
A second coupling part coupled to the frame reinforcement unit;
A round-shaped first tank support part integrally connected to the first coupling part and the second coupling part
Vehicle hydrogen tank mounting structure comprising a. According to claim 4,
A vehicle hydrogen tank mounting structure in which a first rubber pad is coupled to an upper surface of the first tank support. According to claim 4,
Each of the first coupling portion and the second coupling portion is formed by a reinforcing extension integrally extending from both ends of the first tank support portion, folded into two layers, and joined,
The reinforcing extension part overlaps with the lower surface of both ends of the first tank support part and is bonded to the vehicle hydrogen tank mounting structure. According to claim 1,
The frame reinforcement unit,
an upper lane coupled to an upper surface of the center frame along the front-rear direction of the vehicle body and coupled to each of the plurality of tank support frames;
A lower ramp coupled to the lower surface of the center frame along the vehicle width direction and coupled to the lower surface of the plurality of tank support frames along the front-rear direction of the vehicle body
Vehicle hydrogen tank mounting structure comprising a. According to claim 7,
The upper rain,
A vehicle hydrogen tank mounting structure provided in the form of a tubular member with both ends open and having respective ends of the plurality of tank support frames coupled to upper surfaces. According to claim 7,
The lower lane,
A pair of first parts coupled to the lower surface of the center frame along the vehicle width direction;
Another pair of second parts coupled to each of the plurality of tank support frames along the front-rear direction of the vehicle body
Vehicle hydrogen tank mounting structure comprising a. According to claim 1,
Each of the plurality of strap bands,
A third coupling part coupled to the front frame and the rear frame;
a fourth coupling portion coupled to the plurality of tank support frames, the frame reinforcing unit, and the center frame through a joint member;
A second tank support part connected to the third coupling part and the fourth coupling part
Vehicle hydrogen tank mounting structure comprising a. According to claim 10,
A vehicle hydrogen tank mounting structure in which a second rubber pad is coupled to the lower surface of the second tank support. a front frame and a rear frame respectively fastened to the vehicle body at set intervals along the front and rear directions of the vehicle body;
a center frame disposed between the front frame and the rear frame;
a plurality of tank support frames coupled to the front frame and the rear frame and connected to the center frame;
a frame reinforcement unit coupled to the center frame corresponding to each of the plurality of tank support frames and coupled to the plurality of tank support frames;
A plurality of strap bands coupled to the front frame and the rear frame corresponding to each of the plurality of tank support frames and connected to joint members fastened to the plurality of tank support frames, the frame reinforcement unit, and the center frame ; and
a damper spring installed on the joint member and exerting an elastic force on the plurality of strap bands;
Vehicle hydrogen tank mounting structure comprising a. According to claim 12,
The frame reinforcement unit,
an upper lane coupled to an upper surface of the center frame along the front-rear direction of the vehicle body and coupled to each of the plurality of tank support frames;
A lower ramp coupled to the lower surface of the center frame along the vehicle width direction and coupled to the lower surface of the plurality of tank support frames along the front-rear direction of the vehicle body
Vehicle hydrogen tank mounting structure comprising a. According to claim 13,
A vehicle hydrogen tank mounting structure in which circularly bent joint coupling portions are formed at ends of the plurality of tank support frames. According to claim 14,
The joint member,
A joint pin inserted into the joint coupling part along the vehicle width direction;
joint bolts that vertically pass through the joint coupling portion and are inserted into the joint pin, and pass through the plurality of tank support frames, the upper lane, the lower lane, and the center frame in a vertical direction;
Joint nut fastened to the joint bolt
Vehicle hydrogen tank mounting structure comprising a. According to claim 15,
The joint coupling part,
A vehicle hydrogen tank mounting structure in which a first through hole through which the shank of the joint bolt passes is formed. According to claim 16,
In the joint pin,
A vehicle hydrogen tank mounting structure in which a second through hole through which the shank of the joint bolt passes is formed, and a support groove for supporting the head of the joint bolt is formed. According to claim 15,
The upper lane is provided in the form of a pipe with both ends open,
A vehicle hydrogen tank mounting structure in which a reinforcing pipe through which the shank of the joint bolt passes is coupled to the inside of the upper lane. According to claim 15,
The damper spring,
A vehicle hydrogen tank mounting structure installed on the shank of the joint bolt, disposed between a lower washer and an upper washer fitted to the shank, and configured to elastically support a lower surface of the center frame. According to claim 19,
The joint member and the damper spring,
A vehicle hydrogen tank mounting structure in which a plurality of strap bands facing each other are disposed at an angle so as to be separated from each other along the front and rear directions of a vehicle body.

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