Back type hydrogen frame connecting structure and hydrogen energy truck

Abstract

The utility model provides a back type hydrogen frame connecting structure, which belongs to the field of hydrogen frame connecting structures and comprises a frame and an even number of connecting components which are respectively and oppositely positioned on two sides of the frame, a vertical plate is further included; two vertical plates form a group, and the two vertical plates are respectively and oppositely positioned on two sides of the frame; the upper portion of the vertical plate is connected with the outer side of the hydrogen frame through a bolt, and the lower portion of the vertical plate is connected with the outer side of the frame through a bolt. According to the utility model, the mounting mode of the existing hydrogen frame is improved, so that the hydrogen frame is mounted by virtue of the L-shaped brackets which are connected up and down and also by virtue of the vertical plates which are simultaneously connected with the hydrogen frame and the frame through bolts, and when the vehicle runs and the hydrogen frame is subjected to acting forces in X, Y and Z directions at the same time, the hydrogen frame is prevented from being damaged. The displacement values of the bolts playing a connecting role in the X direction, the Y direction and the Z direction cannot be remarkably increased at the same time, the stress value of the bolt fixing position can be greatly reduced, and therefore the problem of bolt breakage is not prone to occurring, the fixing reliability and stability of the hydrogen frame can be improved, and the reliability of the whole vehicle is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen frame connection structures, in particular to a back-type hydrogen frame connection structure and a hydrogen energy truck. Background Art

[0002] At present, the hydrogen frame of a hydrogen fuel cell truck is generally fixed on the frame and arranged at the rear of the cab. When installing the hydrogen frame, it is usually necessary to use two L-shaped brackets for connection. The two L-shaped brackets are connected up and down by bolts, and one of the L-shaped brackets is welded to the trough beam at the bottom of the hydrogen frame, and the other L-shaped bracket is connected to the outside of the frame by bolts.

[0003] Since the hydrogen frame containing the hydrogen bottle is heavy and has a high center of mass, when the vehicle is running, the hydrogen frame will be subjected to forces in the X, Y, and Z directions at the same time. The existing hydrogen frame connection structure is only connected up and down by two L-shaped brackets. The reliability of the connection structure is weak and the bolts are prone to breakage.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a back-type hydrogen frame connection structure and a hydrogen energy truck, aiming to solve the problem that the existing hydrogen frame connection structure is only connected up and down by two L-shaped brackets, the reliability of the connection structure is weak, and bolts are prone to breakage.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A back-mounted hydrogen frame connection structure comprises a frame, an even number of connection components respectively located on both sides of the frame; the connection components each comprise an upper L-shaped bracket and a lower L-shaped bracket; the upper L-shaped bracket is welded to the outer side of the hydrogen frame; the lower L-shaped bracket is in an inverted L-shape, and the lower L-shaped bracket is connected to the outer side of the frame by bolts; the upper L-shaped bracket and the lower L-shaped bracket are connected by bolts; further, it comprises a vertical plate; the vertical plates are in a group of two, and the two vertical plates are respectively located on both sides of the frame; the upper portion of the vertical plate is connected to the outer side of the hydrogen frame by bolts, and the lower portion of the vertical plate is connected to the outer side of the frame by bolts.

[0008] Furthermore, there are two groups of vertical plates; the connecting assembly is located between the two groups of vertical plates.

[0009] Furthermore, the upper L-shaped bracket comprises:

[0010] A first transverse plate, the first transverse plate is connected to the lower L-shaped bracket by bolts,

[0011] A first vertical plate, the first vertical plate is vertically arranged on the first horizontal plate, and a plurality of openings are distributed on the first vertical plate;

[0012] The first vertical plate is welded to the outer side of the hydrogen frame.

[0013] Furthermore, the upper L-shaped bracket also includes:

[0014] The first reinforcing plate includes at least two first reinforcing plates, and the first reinforcing plates are connected to the first transverse plate and the first vertical plate at the same time.

[0015] Furthermore, the lower L-shaped bracket comprises:

[0016] a second transverse plate connected to the upper L-shaped bracket;

[0017] A second vertical plate, the second vertical plate is vertically arranged at the bottom of the second horizontal plate, and the second vertical plate is connected to the outer side of the frame by bolts;

[0018] The second reinforcing plate is provided with at least two pieces, and the second reinforcing plate is connected to the second transverse plate and the second vertical plate at the same time.

[0019] Furthermore, at least two groups of reinforcement strips perpendicular to the vertical plate are provided on the outer side of the vertical plate, and the reinforcement strips are perpendicular to the horizontal plane.

[0020] Furthermore, the upper L-shaped bracket is connected to the lower L-shaped bracket by at least three vertical bolts; the lower L-shaped bracket is connected to the frame by at least three transverse bolts; the upper part of the vertical plate is connected to the hydrogen frame by at least four transverse bolts, and the lower part of the vertical plate is connected to the frame by at least six bolts.

[0021] Furthermore, the upper portion of the vertical plate is provided with two rows of first through holes for bolts to pass through, and the lower portion of the vertical plate is provided with two rows of second through holes for bolts to pass through; the number of the first through holes in each row is the same, and the number of the second through holes in each row is the same.

[0022] The utility model provides a hydrogen energy truck, comprising the above-mentioned back-type hydrogen frame connection structure.

[0023] Beneficial effects:

[0024] The utility model provides a rear-mounted hydrogen frame connection structure. By improving the installation method of the existing hydrogen frame, the hydrogen frame is installed not only with the help of the L-shaped brackets connected up and down, but also with the help of the vertical plates that are bolted to the hydrogen frame and the frame at the same time. When the vehicle is running and the hydrogen frame is subjected to forces in the three directions of X, Y and Z at the same time, the bolts that play a connecting role at the vertical plates can withstand the shear force in the up and down directions caused by the up and down movement of the hydrogen frame (i.e., the Z direction), and the shear force in the front and back directions or the left and right directions caused by the front and back or left and right movement of the hydrogen frame (i.e., the X and Y directions) is shared and borne by the bolts located at the connection of the upper L-shaped bracket and the lower L-shaped bracket. Therefore, the displacement values ​​of the bolts that play a connecting role in the three directions of X, Y and Z will not increase significantly at the same time, and the stress value at the bolt fixing position can be greatly reduced, so that the problem of bolt breakage is not likely to occur, so that the reliability and stability of the hydrogen frame fixing can be improved, and the reliability of the whole vehicle is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the hydrogen frame being installed on the vehicle frame. Figure 1 .

[0026] Figure 2 yes Figure 1 Enlarged view of part A.

[0027] Figure 3 This is a schematic diagram of the hydrogen frame being installed on the vehicle frame. Figure 2 .

[0028] Figure 4 Schematic diagram of the structure of the connection component.

[0029] Figure 5 It is a structural schematic diagram of the vertical plate.

[0030] Reference numerals:

[0031] 1- Frame;

[0032] 2-connecting assembly; 21-upper L-shaped bracket; 211-first horizontal plate; 212-first vertical plate; 2121-opening; 213-first reinforcing plate; 22-lower L-shaped bracket; 221-second horizontal plate; 222-second vertical plate; 223-second reinforcing plate;

[0033] 3-Hydrogen frame;

[0034] 4-vertical plate; 41-first perforation; 42-second perforation;

[0035] 5-Reinforcement strips. DETAILED DESCRIPTION

[0036] The present utility model provides a coolant recovery device for a fuel cell. In order to make the purpose, technical solution and effect of the present utility model clearer and more specific, the present utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present utility model and are not used to limit the present utility model.

[0037] In the description of the present utility model, it is necessary to understand that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0038] See also Figure 1-Figure 3 The utility model provides a back-type hydrogen frame 3 connection structure, including a frame 1 and a connection assembly 2.

[0039] There are an even number of connection components 2, for example, two or four. The connection components 2 are grouped in pairs, and each group of connection components 2 is located on two sides of the frame 1 respectively.

[0040] Specifically, the connection assembly 2 includes an upper L-shaped bracket 21 and a lower L-shaped bracket 22. The upper L-shaped bracket 21 is welded to the outer side of the channel beam at the bottom of the hydrogen frame 3; the lower L-shaped bracket 22 is in an inverted L shape, and the lower L-shaped bracket 22 is connected to the outer side of the frame 1 through a transverse bolt; the upper L-shaped bracket 21 and the lower L-shaped bracket 22 are connected through a vertical bolt. By using the connection assembly 2 composed of the upper L-shaped bracket 21 and the lower L-shaped bracket 22, the hydrogen frame 3 can be installed on the frame 1.

[0041] Furthermore, the back-type hydrogen frame 3 connection structure also includes a vertical plate 4. The vertical plates 4 are in groups of two, and the two vertical plates 4 are respectively located on both sides of the frame 1; the upper part of the vertical plate 4 is connected to the trough beam at the bottom of the hydrogen frame 3 through a transverse bolt, and the lower part of the vertical plate 4 is connected to the outer side of the frame 1 through a transverse bolt. When the vehicle is running and the hydrogen frame 3 is subjected to forces in the three directions of X, Y, and Z at the same time, the bolts that play a connecting role at the vertical plate 4 can withstand the shear force in the up and down direction caused by the up and down movement of the hydrogen frame 3 (i.e., the Z direction), and the shear force in the front and back or left and right directions caused by the front and back or left and right movement of the hydrogen frame 3 (i.e., the X and Y directions) is shared and borne by the bolts located at the connection of the upper L-shaped bracket 21 and the lower L-shaped bracket 22, so that the displacement values ​​of the bolts that play a connecting role in the three directions of X, Y, and Z will not increase significantly at the same time, and the stress value at the bolt fixing position can be greatly reduced, so that the problem of bolt breakage is not easy to occur, so that the reliability and stability of the hydrogen frame 3 fixation can be improved, and the reliability of the whole vehicle is greatly improved.

[0042] Furthermore, there are two groups of vertical plates 4; the connecting assembly 2 is located between the two groups of vertical plates 4. Figure 1 , Figure 2 As shown, when two groups of vertical plates 4 are provided, the two groups of vertical plates 4 are respectively located at the front and rear ends of the bottom trough beam of the hydrogen frame 3. At this time, by cooperating with the connecting components 2 between the two groups of vertical plates 4, the reliability and stability of the fixation of the hydrogen frame 3 can be improved, and there is no need to set more vertical plates 4.

[0043] Furthermore, the upper L-shaped bracket 21 includes a first transverse plate 211 and a first vertical plate 212 .

[0044] The first horizontal plate 211 is connected to the lower L-shaped bracket 22 via vertical bolts. The first vertical plate 212 is vertically arranged on the first horizontal plate 211 , and a plurality of openings 2121 are distributed on the first vertical plate 212 .

[0045] The utility model provides a plurality of openings 2121 on the first vertical plate 212, so as to relieve the thermal stress generated when the first vertical plate 212 is welded to the hydrogen frame 3 (bottom trough beam), prevent the first vertical plate 212 from deforming or breaking, and ensure that the hydrogen frame 3 is fixed reliably.

[0046] Furthermore, the upper L-shaped bracket 21 further includes a first reinforcing plate 213. At least two first reinforcing plates 213 are provided, and the first reinforcing plates 213 are connected to the first transverse plate 211 and the first vertical plate 212 at the same time.

[0047] like Figure 4 As shown, Figure 4It is shown that two first reinforcing plates 213 are respectively located on both sides of the upper L-shaped bracket 21. By connecting the first reinforcing plates 213 to the first transverse plate 211 and the first vertical plate 212 at the same time, the displacement of the upper L-shaped bracket 21 in the X, Y, and Z directions can be limited, and the connection between the upper L-shaped bracket 21 and other structural components is prevented from being twisted, so as to maintain the stability of the connection position.

[0048] Furthermore, the lower L-shaped bracket 22 includes a second transverse plate 221 , a second vertical plate 222 and a second reinforcing plate 223 .

[0049] The second transverse plate 221 is connected to the upper L-shaped bracket 21. The second vertical plate 222 is vertically arranged at the bottom of the second transverse plate 221, and the second vertical plate 222 is connected to the outer side of the frame 1 through transverse bolts. At least two second reinforcing plates 223 are provided, and the second reinforcing plates 223 are connected to the second transverse plate 221 and the second vertical plate 222 at the same time.

[0050] like Figure 4 As shown, Figure 4 Two second reinforcing plates 223 are shown to be located on both sides of the lower L-shaped bracket 22. By connecting the second reinforcing plates 223 to the second transverse plate 221 and the second vertical plate 222 at the same time, the deformation of the lower L-shaped bracket 22 in the X, Y, and Z directions can be limited, and the connection between the lower L-shaped bracket 22 and other structural components can be prevented from being twisted, thereby maintaining the stability of the connection position.

[0051] Furthermore, at least two groups of reinforcing strips 5 perpendicular to the vertical plate 4 are provided on the outer side of the vertical plate 4 , and the reinforcing strips 5 are perpendicular to the horizontal plane.

[0052] like Figure 5 As shown, Figure 5 It is shown that two groups of reinforcing strips 5 are provided and are respectively located on both sides of the vertical plate 4. With the help of the reinforcing strips 5, the deformation of the vertical plate 4 in the X, Y, and Z directions (especially the X and Y directions) can be limited to keep the connection position stable.

[0053] like Figure 4 and Figure 5 As shown, further, the upper L-shaped bracket 21 is connected to the lower L-shaped bracket 22 by at least three vertical bolts; the lower L-shaped bracket 22 is connected to the frame 1 by at least three transverse bolts; the upper part of the vertical plate 4 is connected to the hydrogen frame 3 (trough beam) by at least four transverse bolts, and the lower part of the vertical plate 4 is connected to the frame 1 by at least six bolts.

[0054] Furthermore, the upper part of the vertical plate 4 is provided with two rows of first through holes 41 for bolts to pass through, and the lower part of the vertical plate 4 is provided with two rows of second through holes 42 for bolts to pass through; the number of the first through holes 41 in each row is the same, and the number of the second through holes 42 in each row is the same.

[0055] Through CAE analysis (computer-aided engineering analysis), it was found that when the number of bolts used, the distribution of the first through holes 41 on the upper part of the vertical plate 4, and the distribution of the second through holes 42 on the lower part of the vertical plate 4 meet the above conditions, it can ensure that the displacement values ​​of the connecting bolts in the three directions of X, Y, and Z will not increase significantly at the same time, and the stress value at the bolt fixing point can be greatly reduced, ensuring the reliability and stability of the fixation of the hydrogen frame 3.

[0056] In summary, the utility model provides a back-type hydrogen frame 3 connection structure, by improving the existing installation method of the hydrogen frame 3, the hydrogen frame 3 is installed not only with the help of the L-shaped bracket connected up and down, but also with the help of the vertical plate 4 that is bolted to the hydrogen frame 3 and the frame 1 at the same time. When the vehicle is running and the hydrogen frame 3 is subjected to forces in the three directions of X, Y, and Z at the same time, the bolts that play a connecting role at the vertical plate 4 can withstand the shear force in the up and down direction caused by the up and down movement of the hydrogen frame 3 (i.e., the Z direction), and the shear force in the front and back or left and right directions caused by the front and back or left and right movement of the hydrogen frame 3 (i.e., the X and Y directions) is shared and borne by the bolts located at the connection of the upper L-shaped bracket 21 and the lower L-shaped bracket 22. Therefore, the displacement values ​​of the bolts that play a connecting role in the three directions of X, Y, and Z will not increase significantly at the same time, and the stress value at the bolt fixing position can be greatly reduced, so that the problem of bolt breakage is not easy to occur, so that the reliability and stability of the hydrogen frame 3 fixation can be improved, and the reliability of the whole vehicle is greatly improved.

[0057] The utility model provides a hydrogen energy truck, comprising the above-mentioned back-type hydrogen frame 3 connection structure.

[0058] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution of the utility model and its utility model concept, and all these changes or substitutions should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A back-type hydrogen frame connection structure, comprising a frame, an even number of connection components respectively located on both sides of the frame; the connection components each comprise an upper L-shaped bracket and a lower L-shaped bracket; the upper L-shaped bracket is welded to the outer side of the hydrogen frame; the lower L-shaped bracket is in an inverted L shape, and the lower L-shaped bracket is connected to the outer side of the frame by bolts; the upper L-shaped bracket and the lower L-shaped bracket are connected by bolts; characterized in that, It also includes vertical plates; the vertical plates are in groups of two, and the two vertical plates are respectively located on both sides of the frame; the upper part of the vertical plate is connected to the outer side of the hydrogen frame by bolts, and the lower part of the vertical plate is connected to the outer side of the frame by bolts.

2. The back-type hydrogen frame connection structure according to claim 1, characterized in that: There are two groups of vertical plates; the connecting component is located between the two groups of vertical plates.

3. The back-type hydrogen frame connection structure according to claim 1, characterized in that: The upper L-shaped bracket comprises: A first transverse plate, the first transverse plate is connected to the lower L-shaped bracket by bolts, A first vertical plate, the first vertical plate is vertically arranged on the first horizontal plate, and a plurality of openings are distributed on the first vertical plate; The first vertical plate is welded to the outer side of the hydrogen frame.

4. The back-type hydrogen frame connection structure according to claim 3, characterized in that: The upper L-shaped bracket also includes: The first reinforcing plate includes at least two first reinforcing plates, and the first reinforcing plates are connected to the first transverse plate and the first vertical plate at the same time.

5. The back-type hydrogen frame connection structure according to claim 1 or 4, characterized in that: The lower L-shaped bracket comprises: a second transverse plate connected to the upper L-shaped bracket; A second vertical plate, the second vertical plate is vertically arranged at the bottom of the second horizontal plate, and the second vertical plate is connected to the outer side of the frame by bolts; The second reinforcing plate is provided with at least two pieces, and the second reinforcing plate is connected to the second transverse plate and the second vertical plate at the same time.

6. The back-type hydrogen frame connection structure according to claim 1, characterized in that: At least two groups of reinforcing strips perpendicular to the vertical plate are arranged on the outer side of the vertical plate, and the reinforcing strips are perpendicular to the horizontal plane.

7. The back-type hydrogen frame connection structure according to claim 2, characterized in that: The upper L-shaped bracket is connected to the lower L-shaped bracket by at least three vertical bolts; the lower L-shaped bracket is connected to the frame by at least three transverse bolts; the upper part of the vertical plate is connected to the hydrogen frame by at least four transverse bolts, and the lower part of the vertical plate is connected to the frame by at least six bolts.

8. The back-type hydrogen frame connection structure according to claim 7, characterized in that: The upper part of the vertical plate is provided with two rows of first through holes for bolts to pass through, and the lower part of the vertical plate is provided with two rows of second through holes for bolts to pass through; the number of the first through holes in each row is the same, and the number of the second through holes in each row is the same.

9. A hydrogen energy truck, characterized in that: It comprises the back-type hydrogen frame connection structure as described in any one of claims 1 to 8.

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