Automobile trunk cover inner plate and automobile trunk

Abstract

The utility model provides an automobile trunk cover inner plate which comprises an inner plate frame body, a first reinforcing beam and a second reinforcing beam, the first reinforcing beam is arranged in the inner plate frame body, and the two ends of the first reinforcing beam are connected with the inner plate frame body; the second reinforcing beam and the first reinforcing beam are arranged at an interval, and the end part of the second reinforcing beam is connected with the first reinforcing beam or the inner plate frame body; the first reinforcing beam is provided with a first through groove, the first through groove extends to the two ends of the first reinforcing beam in the length direction of the first reinforcing beam, the second reinforcing beam is provided with a second through groove, and the second through groove extends to the two ends of the second reinforcing beam in the length direction of the second reinforcing beam. The utility model aims to enhance the strength of the inner plate of the trunk cover and reduce the material utilization of the inner plate of the trunk cover.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an inner panel of an automobile trunk lid and an automobile trunk. Background Art

[0002] The inner panel of an automobile trunk lid is mainly used to ensure the strength of the trunk lid and to install accessories of the automobile at the same time. Therefore, the rigid strength of the inner panel is crucial for the overall strength and stability of the trunk. At present, on the premise of ensuring strength, many studies have proposed high-lightweight trunks to improve the material utilization rate, reduce the weight of the whole vehicle, and also promote energy conservation and emission reduction to a certain extent.

[0003] However, the material utilization rate of the existing sheet metal inner panel of the trunk is not high, and it is difficult to balance the performance and lightweight of the inner panel. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide an inner panel of an automobile trunk lid, aiming to strengthen the strength of the inner panel of the trunk lid and reduce the material utilization of the inner panel of the trunk lid at the same time.

[0005] The utility model provides an inner panel of an automobile trunk lid, including: an inner panel frame; a first reinforcing beam, the first reinforcing beam is arranged in the inner panel frame and both ends are connected with the inner panel frame; a second reinforcing beam, the second reinforcing beam is arranged at an interval with the first reinforcing beam, and the end of the second reinforcing beam is connected with the first reinforcing beam or the inner panel frame; the first reinforcing beam is provided with a first through groove, the first through groove extends along the length direction of the first reinforcing beam to both ends of the first reinforcing beam, the second reinforcing beam is provided with a second through groove, and the second through groove extends along the length direction of the second reinforcing beam to both ends of the second reinforcing beam.

[0006] In one embodiment, the second reinforcing beam is connected with the first reinforcing beam and the inner panel frame by fillet rounds.

[0007] In one embodiment, there are multiple second reinforcing beams, and adjacent second reinforcing beams are spaced by the first reinforcing beam, and the length directions of the multiple second reinforcing beams are on the same straight line.

[0008] In one embodiment, there are multiple first reinforcing beams, and the multiple first reinforcing beams are arranged in a staggered manner. The first included angle formed by any two first reinforcing beams is (0°, 60°], or any two first reinforcing beams are parallel to each other.

[0009] In one embodiment, the first reinforcing beam and the second reinforcing beam form a second included angle of 60°-90°.

[0010] In one embodiment, the inner plate frame, the first reinforcing beam, and the second reinforcing beam enclose a plurality of weight reduction areas, and the weight reduction areas are used to define the range of the plate body to be subtracted, so as to reasonably reduce the weight.

[0011] In one embodiment, it further includes an outer plate support for connecting the outer plate of the car trunk lid. The outer plate support is arranged in any of the plurality of weight reduction areas, and the outer plate support is connected to the inner plate frame.

[0012] The present utility model also provides a car trunk, including a box body and a car trunk lid. The car trunk lid includes the inner plate of the car trunk lid as described above. The box body has a receiving cavity and an opening communicating with the receiving cavity. The car trunk lid is used to close or expose the receiving cavity.

[0013] In one embodiment, the inner plate frame includes a connecting beam and a movable beam. The connecting beam is hinged to the car trunk. As the movable beam rotates around the connecting beam, the car trunk closes or exposes the receiving cavity.

[0014] In one embodiment, the car trunk lid is provided with a lock catch, and the box body is provided with a lock tongue. The lock catch is detachably connected to the lock tongue for opening or closing the receiving cavity.

[0015] The inner plate of the car trunk lid provided by the present utility model connects the first reinforcing beam and the second reinforcing beam arranged in a staggered manner within the inner plate frame to improve the overall rigidity strength of the trunk lid. Then, a first through groove is opened in the first reinforcing beam, and the length of the first through groove covers the length of the first reinforcing beam. A second through groove is opened in the second reinforcing beam, and the length of the second through groove covers the length of the second reinforcing beam, which can ensure the stress concentration of the first reinforcing beam and the second reinforcing beam to the greatest extent, further improving the strength of the inner plate of the trunk lid. On the premise that the strength of the inner plate of the high trunk lid is ensured, the lightweight treatment of the inner plate of the high trunk lid is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the inner plate of the car trunk lid in the first embodiment of the present utility model.

[0018] Figure 2 For Figure 1 the sectional view of the second reinforcing beam A-A.

[0019] Figure 3 For Figure 1 the schematic diagram of the B-B cross-section of the first reinforcing beam in

[0020] Reference numerals: inner plate frame - 10, first reinforcing beam - 20, first through groove - 21, second reinforcing beam - 30, second through groove - 31, first included angle - α, second included angle - β, weight reduction area - 40, outer plate support - 50. Specific embodiments

[0021] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms may be understood according to specific circumstances.

[0023] The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] The terms "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0025] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.

[0026] The first embodiment

[0027] Please refer to Figures 1-3, an embodiment of the present utility model provides an inner panel of a car trunk lid, including: an inner panel frame 10; a first reinforcing beam 20, the first reinforcing beam 20 is arranged inside the inner panel frame 10, and both ends are connected to the inner panel frame 10; a second reinforcing beam 30, the second reinforcing beam 30 is arranged at an interval from the first reinforcing beam 20, and the end of the second reinforcing beam 30 is connected to the first reinforcing beam 20 or the inner panel frame 10; the first reinforcing beam 20 is provided with a first through groove 21, the first through groove 21 extends along the length direction of the first reinforcing beam 20 to both ends of the first reinforcing beam 20, the second reinforcing beam 30 is provided with a second through groove 31, and the second through groove 31 extends along the length direction of the second reinforcing beam 30 to both ends of the second reinforcing beam 30.

[0028] Specifically, the first reinforcing beam 20 is arranged inside the inner panel frame 10, and both ends abut against the inside of the inner panel frame 10. The inner panel frame 10 is a closed frame structure, which provides circumferential support for the inner panel of the car trunk lid, and the closed frame structure is relatively stable, which is beneficial to improving the overall stability. Both ends of the first reinforcing beam 20 abut against the opposite sides of the inner panel frame 10, providing internal support force for the inner panel frame 10 and further improving the overall stability. The second reinforcing beam 30 is arranged on one side or both sides of the first reinforcing beam 20. In actual application, the placement scheme needs to be determined according to the number of the first reinforcing beam 20 and the second reinforcing beam 30. The second reinforcing beam 30 can be connected between the inner panel frame 10 and the first reinforcing beam 20. When the number of the first reinforcing beam 20 is multiple, it can also be connected between adjacent first reinforcing beams 20 to form an interleaved arrangement with the first reinforcing beam 20, so that the first reinforcing beam 20 and the second reinforcing beam 30 have longitudinal and transverse support forces inside the inner panel frame 10. The first through groove 21 penetrates the first reinforcing beam 20 in the length direction of the first reinforcing beam 20, and the second through groove 31 penetrates the second reinforcing beam 30 in the length direction of the second reinforcing beam 30. Compared with the prior art where only a short through groove or multiple circular through grooves are opened on the reinforcing beam, the through type is more conducive to stress dispersion.

[0029] Further, please continue to refer to Figures 2-3 , the cross-sectional shapes of the first reinforcing beam 20 and the second reinforcing beam both form a "W" shape.

[0030] In other embodiments, the second reinforcing beam 30 can also be connected to the opposite sides of the inner panel frame 10.

[0031] In this embodiment, the second reinforcing beam 30 is connected to the first reinforcing beam 20 and the inner panel frame 10 with chamfered fillets.

[0032] Specifically, chamfers are provided at the connection between the second reinforcing beam 30 and the first reinforcing beam 20 and at the connection between the second reinforcing beam 30 and the inner panel frame 10. The chamfered setting can effectively reduce stress concentration, reduce the deformation at the connection, and improve durability.

[0033] In this embodiment, there are multiple second reinforcing beams 30, and adjacent second reinforcing beams 30 are spaced apart by the first reinforcing beam 20.

[0034] Specifically, multiple second reinforcing beams 30 are arranged at intervals, and one first reinforcing beam 20 is arranged between adjacent second reinforcing beams 30. For the second reinforcing beam 30 located between the inner plate frame 10 and the first reinforcing beam 20, both ends are respectively connected to the inner plate frame 10 and the first reinforcing beam 20. Preferably, the first reinforcing beam 20 and the second reinforcing beam 30 are respectively connected to adjacent sides of the inner plate frame 10, which can improve the self-stability of the inner plate frame 10 and the overall structural strength and stability of the inner plate of the automobile trunk lid.

[0035] Preferably, the length directions of multiple second reinforcing beams 30 are along the same straight line, which can enable the inner plate of the automobile trunk lid to have a through-type transverse strength in the same height direction. At the same time, when setting the weight reduction area 40 subsequently, the sizes of the weight reduction areas 40 are relatively more consistent, avoiding the influence on the strength caused by the over-large weight reduction area 40 and facilitating the prediction of the force direction. Moreover, two adjacent second reinforcing beams 30 can be commonly connected to the same position of the first reinforcing beam 20, so that the three reinforcing beams can restrain and fix each other, which is beneficial to the dispersion of force, and the strength of this connection position is higher than that when two reinforcing beams are connected.

[0036] In other embodiments, multiple second reinforcing beams 30 can also be arranged in a parallel and staggered manner, which is equivalent to spreading in the distribution direction of multiple second reinforcing beams 30, making the support of the second reinforcing beams 30 on the inner plate frame 10 more uniform and the integrity stronger in the height direction.

[0037] In this embodiment, there are multiple first reinforcing beams 20, and multiple first reinforcing beams 20 are arranged in a staggered manner. The first included angle α formed by any two first reinforcing beams 20 is (0°, 60°], or any two first reinforcing beams 20 are parallel to each other.

[0038] Specifically, the arrangement angle between the first reinforcing beam 20 and the second reinforcing beam 30 determines the force direction when the inner plate of the automobile trunk lid is stressed. By analyzing the structures of most inner plates of automobile trunk lids and making a force value analysis, it is preferably selected that the first included angle α formed by any two first reinforcing beams 20 is (0°, 60°], or when any two first reinforcing beams 20 are parallel to each other, the force transmission path can be shortened to a greater extent. In practical applications, the angle of the first included angle α can be 2°, 5°, 7°, 9°, 10°, 11°, 15°, 19°, 22°, 26°, 30°, 35°, 38°, 40°, 45°, 47°, 50°, 55°, 58°, 60°, etc., which is not uniquely limited here.

[0039] In this embodiment, the number of the first reinforcing beams 20 is preferably 2, and the number of the second reinforcing beams 30 is preferably 3. The 3 second reinforcing beams 30 are respectively arranged on both sides of each first reinforcing beam 20. Then, the first reinforcing beams 20 and the second reinforcing beams 30 between the first reinforcing beams 20 form a "W" shape or an "A" shape. The structure similar to a triangle makes the structural stability of the first reinforcing beams 20 and the second reinforcing beams 30 better.

[0040] Furthermore, the first reinforcing beam 20 and the second reinforcing beam 30 form a second included angle β of 60°-90°, making the structure relatively stable. When the first reinforcing beam 20 and the second reinforcing beam 30 itself have relatively high structural strength, the second included angle β formed between the first reinforcing beam 20 and the second reinforcing beam 30 can preferably be in intervals such as 60°-80°, 70°-90°, etc.

[0041] In this embodiment, the inner plate frame 10, the first reinforcing beam 20 and the second reinforcing beam 30 enclose a plurality of weight reduction areas 40. The weight reduction areas 40 are used to define the range of the plate body to be removed, so as to reasonably reduce the weight.

[0042] Specifically, in the manufacturing process of the inner plate of the automobile trunk lid, the inner plate frame 10, the first reinforcing beam 20 and the second reinforcing beam 30 are preferably integrally formed. The semi-finished product of the inner plate of the automobile trunk lid is a complete plate body. After the design of the force transmission path, the first reinforcing beam 20 and the second reinforcing beam 30 are formed. After the force value analysis, the first reinforcing beam 20 and the second reinforcing beam 30 are sufficient for the strength requirement of the inner plate of the automobile trunk lid. On this basis, the redundant parts on the semi-finished product plate body can be appropriately cut. Then, after the plate body in the plurality of weight reduction areas 40 enclosed by the inner plate frame 10, the first reinforcing beam 20 and the second reinforcing beam 30 is removed, the rigid strength of the inner plate of the automobile trunk lid can still be ensured, and the requirement of lightweight is achieved.

[0043] In this embodiment, it further includes an outer plate support 50 for connecting the outer plate of the automobile trunk lid. The outer plate support 50 is arranged in any weight reduction area 40 and is connected to the inner plate frame 10.

[0044] Specifically, the outer plate support 50 can be made of the redundant plate body in the weight reduction area 40, avoiding the welding of external materials, reducing the stress concentration at the connection, and improving the material utilization rate. Preferably, the number of the outer plate supports 50 is multiple, and the multiple outer plate supports 50 are arranged in one-to-one correspondence with the multiple weight reduction areas 40.

[0045] The inner panel of the car trunk lid provided by the present utility model improves the overall rigidity strength of the trunk lid by connecting the first reinforcing beam 20 and the second reinforcing beam 30 which are arranged staggeredly inside the inner panel frame 10. Then, a first through groove 21 is opened in the first reinforcing beam 20, and the length of the first through groove 21 covers the length of the first reinforcing beam 20. A second through groove 31 is opened in the second reinforcing beam 30, and the length of the second through groove 31 covers the length of the second reinforcing beam 30, which can ensure the stress concentration of the first reinforcing beam 20 and the second reinforcing beam 30 to the greatest extent, further improving the strength of the inner panel of the trunk lid. On the premise that the strength of the inner panel of the high trunk lid is guaranteed, the lightweight treatment of the inner panel of the high trunk lid is more flexible.

[0046] The second embodiment

[0047] Another embodiment of the present utility model provides a car trunk (not shown in the figure), including a box body and a car trunk lid. The car trunk lid includes the inner panel of the car trunk lid as described above. The box body has a receiving cavity and an opening communicating with the receiving cavity. The car trunk lid is used to close or expose the receiving cavity.

[0048] In this embodiment, the inner panel frame includes a connecting beam and a movable beam. The connecting beam is hinged to the car trunk. As the movable beam rotates around the connecting beam, the car trunk closes or exposes the receiving cavity.

[0049] In this embodiment, the car trunk lid is provided with a lock catch, and the box body is provided with a locking tongue. The lock catch is detachably connected to the locking tongue and is used to open or close the receiving cavity.

[0050] Specifically, the locking tongue is arranged on the inner panel of the car trunk lid.

[0051] As described above, the above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An inner panel of a car trunk lid, characterized in that: include: Inner plate frame (10); A first reinforcing beam (20), the first reinforcing beam (20) being arranged in the inner plate frame (10) and having two ends connected to the inner plate frame (10); a second reinforcing beam (30), the second reinforcing beam (30) being spaced apart from the first reinforcing beam (20), and an end portion of the second reinforcing beam (30) being connected to the first reinforcing beam (20) or the inner plate frame (10); The first reinforcing beam (20) is provided with a first through groove (21), and the first through groove (21) extends along the length direction of the first reinforcing beam (20) to two ends of the first reinforcing beam (20), and the second reinforcing beam (30) is provided with a second through groove (31), and the second through groove (31) extends along the length direction of the second reinforcing beam (30) to two ends of the second reinforcing beam (30).

2. The automobile trunk lid inner panel according to claim 1, characterized in that: The second reinforcing beam (30), the first reinforcing beam (20) and the inner plate frame (10) are all connected with rounded corners.

3. The automobile trunk lid inner panel according to claim 1, characterized in that: There are a plurality of second reinforcing beams (30), and adjacent second reinforcing beams (30) are spaced apart by the first reinforcing beams (20).

4. The automobile trunk lid inner panel according to claim 1, characterized in that: There are a plurality of the first reinforcing beams (20), the plurality of the first reinforcing beams (20) are arranged in a staggered manner, any two of the first reinforcing beams (20) form a first included angle (α) of (0°, 60°], or any two of the first reinforcing beams (20) are parallel to each other.

5. The automobile trunk lid inner panel according to claim 1, characterized in that: The first reinforcing beam (20) and the second reinforcing beam (30) form a second angle (β) of 60°-90°.

6. The automobile trunk lid inner panel according to claim 1, characterized in that: The inner plate frame (10), the first reinforcing beam (20) and the second reinforcing beam (30) enclose a plurality of weight reduction areas (40), and the weight reduction areas (40) are used to limit the range of plate reduction to reasonably reduce weight.

7. The automobile trunk lid inner panel according to claim 6, characterized in that: It also includes an outer panel support (50) for connecting the outer panel of the automobile trunk lid, wherein the outer panel support (50) is arranged in any of the plurality of weight reduction areas (40), and the outer panel support (50) is connected to the inner panel frame (10).

8. A car trunk, characterized in that: It comprises a box body and a car trunk cover, wherein the car trunk cover comprises the car trunk cover inner plate as claimed in any one of claims 1 to 7, the box body has a accommodating cavity and an opening connected to the accommodating cavity, and the car trunk cover is used to close or expose the accommodating cavity.

9. The automobile trunk as claimed in claim 8, characterized in that: The inner plate frame comprises a connecting beam and a movable beam, wherein the connecting beam is hinged to the automobile trunk, and as the movable beam rotates around the connecting beam, the automobile trunk closes or exposes the accommodating cavity.

10. The automobile trunk as claimed in claim 8, characterized in that: The automobile trunk cover is provided with a lock buckle, and the trunk body is provided with a lock tongue. The lock buckle is detachably connected to the lock tongue and is used to open or close the accommodating cavity.

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