Metal beam structure and battery mounting structure

Abstract

This application relates to a metal beam structure and a battery mounting structure. The metal beam structure includes a crossbeam with mounting holes for fixing rivets and an overflow hole for accommodating material compressed by the rivets. The overflow hole is located outside the mounting holes. When the rivets are fixed to the mounting holes, they compress the material around the holes. The overflow hole accommodates the compressed material, reducing deformation and limiting its transfer within the crossbeam. This reduces crossbeam deformation and helps maintain its strength and flatness.

Description

Technical Field

[0001] This application relates to the field of battery mounting technology, and in particular to a metal beam structure and a battery mounting structure. Background Technology

[0002] Currently, new energy vehicles are usually equipped with battery modules, and the battery cold plate usually has a solid metal beam to fix the battery module.

[0003] In order to fix the battery module, it is also necessary to fix the standard metal parts (connectors) such as bolts and nuts to the solid metal beam through processes such as riveting. During the riveting and rivet-fixing process of fixing the standard metal parts, the solid metal beam is prone to deformation due to the extrusion of the material. The deformation of the solid metal beam will affect the fit quality between the beam and the battery cold plate, thus affecting the strength, flatness and other quality issues of the cold plate. Utility Model Content

[0004] Therefore, it is necessary to provide a metal beam structure that reduces deformation.

[0005] This application provides a metal beam structure, including a crossbeam, the crossbeam having mounting holes for fixing rivets, and the crossbeam having overflow holes for accommodating material extruded by the rivets, the overflow holes being located outside the mounting holes.

[0006] In one embodiment, the crossbeam has two surfaces spaced apart along the depth direction of the mounting hole, namely a first surface and a second surface. The rivet includes an insertion section inserted into the mounting hole. One end of the insertion section has a head end with a cross-sectional area that is larger than that of the insertion section. The head end is located on the first surface of the crossbeam, and the overflow hole is provided on the first surface.

[0007] In one embodiment, the overflow hole is located on the outer periphery of the mounting hole, and the overflow hole is a connecting hole formed by extending outward from the outer periphery of the mounting hole.

[0008] In one embodiment, the overflow hole is a groove formed by recessing from the first surface toward the second surface, and a gap is left between the groove and the mounting hole.

[0009] In one embodiment, the groove is an annular groove surrounding the periphery of the mounting hole, the annular groove extending circumferentially along the mounting hole.

[0010] In one embodiment, the groove includes at least two slots arranged circumferentially spaced along the mounting hole;

[0011] The groove is an arc-shaped groove extending circumferentially along the mounting hole; or,

[0012] The slot is a strip-shaped groove extending along the length or width of the crossbeam.

[0013] In one embodiment, the groove is an arc-shaped groove, with the outer wall of the arc-shaped groove being a first arc-shaped wall that arches away from the mounting hole. The inner wall of the arc-shaped groove is arranged sequentially from the inside to the outside of the outer wall of the arc-shaped groove, and the inner wall of the arc-shaped groove is a second arc-shaped wall that arches towards the first arc-shaped wall. Alternatively, the inner wall of the arc-shaped groove is a straight wall connecting the two ends of the first arc-shaped wall.

[0014] In one embodiment, two sides of the crossbeam arranged at intervals along its width direction are defined as the first side and the second side, respectively. The mounting hole is arranged close to the first side, and the groove is located between the mounting hole and the second side.

[0015] In one embodiment, the crossbeam is provided with at least two mounting holes, and the at least two mounting holes are arranged at intervals along the length direction of the crossbeam;

[0016] Each of the mounting holes corresponds to an overflow hole, and the shapes of the overflow holes corresponding to each mounting hole are either different or the same.

[0017] Alternatively, the shape of the overflow hole corresponding to at least one of the mounting holes is different from the shape of the overflow holes corresponding to the remaining mounting holes;

[0018] Alternatively, the two sides of the crossbeam arranged at intervals along its width direction can be defined as the first side and the second side, respectively. The mounting holes are arranged close to the first side, and the overflow holes are located between each of the mounting holes and the second side, and extend along the length direction of the crossbeam.

[0019] Alternatively, the overflow holes extend along the length of the crossbeam, and there are two of them, which are spaced apart along the width of the crossbeam, with each mounting hole located between the two overflow holes.

[0020] This application also provides a battery mounting structure, including a battery module and a metal beam structure, wherein the metal beam structure is the metal beam structure described in any of the above embodiments, and the battery module is connected to the crossbeam through the riveting member.

[0021] Compared with the prior art, in the metal beam structure provided in this application, when the rivet is fixedly installed with the mounting hole, the rivet will squeeze the material around the mounting hole. The existence of the overflow hole can accommodate the squeezed material, reduce the deformation of the material, and limit the transfer of the squeezed material inside the beam, thereby achieving the purpose of reducing beam deformation and helping to ensure the strength and flatness of the beam. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a crossbeam according to an embodiment of this application;

[0024] Figure 2 for Figure 1 A magnified view of a section at point I;

[0025] Figure 3 for Figure 1 Enlarged view of a section at point II;

[0026] Figure 4 for Figure 1 A magnified view of a section at point III;

[0027] Figure 5 This is a perspective view of a crossbeam according to another embodiment of this application;

[0028] Figure 6 This is a perspective view of a crossbeam according to another embodiment of this application;

[0029] Figure 7 This is a perspective view of a crossbeam according to another embodiment of this application;

[0030] Figure 8 for Figure 7 Top view;

[0031] Figure 9 A perspective view of a crossbeam with a strip groove in one embodiment of this application;

[0032] Figure 10 This is a front view of a riveting component according to an embodiment of this application;

[0033] Figure 11 This is a schematic diagram of the structure of a crossbeam without the rivets according to an embodiment of this application.

[0034] Reference numerals: 1. Crossbeam; 101. First surface; 102. Second surface; 11. Mounting hole; 12. Communicating hole; 131. Annular groove; 132. Arc groove; 1321. First arc wall; 1322. Second arc wall; 1323. Straight wall; 133. Strip groove; 141. First side; 142. Second side; 2. Rivet; 21. Insertion section; 22. Head end. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0040] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0041] like Figures 1-10 As shown, this application discloses a metal beam structure. The metal beam structure includes a crossbeam 1, which has mounting holes 11 for fixing rivets 2, and also has overflow holes for accommodating material extruded by the rivets 2, with the overflow holes located outside the mounting holes 11.

[0042] It is understandable that when the rivet 2 is fixedly installed with the mounting hole 11, the rivet 2 will squeeze the material around the mounting hole 11. The existence of the overflow hole can accommodate the squeezed material, reduce the deformation of the material, and limit the transfer of the squeezed material inside the beam 1, thereby achieving the purpose of reducing the deformation of the beam 1, which is conducive to ensuring the strength and flatness of the beam 1.

[0043] Specifically, the two surfaces of the crossbeam 1, spaced apart along the depth direction of the mounting holes 11, are the first surface 101 and the second surface 102, as shown below. Figure 1 Combination Figure 10 As shown, the riveting component 2 includes an insertion section 21 that is inserted into the mounting hole 11. One end of the insertion section 21 has a head end 22 that has a larger cross-sectional area than the insertion section 21. That is, the cross-sectional area of ​​the head end 22 is larger than the cross-sectional area of ​​the insertion section 21. The head end 22 is located at the first surface 101 of the crossbeam 1, and an overflow hole is provided on the first surface 101.

[0044] During the riveting and pressing process, when the head end 22 enters the mounting hole 11, it will squeeze the material around the mounting hole 11. The existence of the overflow hole can accommodate the squeezed material, reduce the deformation of the material, and limit the transfer of the squeezed material inside the beam 1 to reduce the deformation of the beam 1, which is beneficial to ensuring the strength and flatness of the beam 1.

[0045] The connecting parts are standard or non-standard parts such as nuts or bolts, and the mounting holes 11 mentioned above can be round holes, square holes, hexagonal holes, diamond holes, etc.

[0046] In one implementation, such as Figure 1 and Figure 11 As shown, the overflow hole is located on the outer periphery of the mounting hole 11, and the overflow hole is a connecting hole 12 formed by extending outward from the outer periphery of the mounting hole 11. That is, the overflow hole is connected to the mounting hole 11, and the connecting hole 12 and the mounting hole 11 together form a hole with a T-shaped longitudinal section.

[0047] In another embodiment provided in this application, the overflow hole is a groove formed by recessing from the first surface 101 toward the second surface 102, and there is a gap between the groove and the mounting hole 11, that is, the groove and the mounting hole 11 are not connected to each other.

[0048] The following section provides further explanation of several design forms of grooves.

[0049] One form of groove is as follows: Figure 1 As shown, the groove is an annular groove 131 surrounding the mounting hole 11, and the annular groove 131 extends circumferentially along the mounting hole 11. That is to say, the groove is a closed groove.

[0050] Another form of groove is used: such as Figure 1 , Figure 3 and Figure 4 As shown, the groove includes at least two circumferentially spaced slots arranged along the mounting hole 11. Schematic, there may be two, three, or four slots. Furthermore, more than four slots may be used. That is, the groove is a non-closed type of groove.

[0051] In one embodiment, the groove is an arc-shaped groove 132 extending circumferentially along the mounting hole 11, specifically, as shown in... Figure 4 As shown, the outer wall of the arc-shaped groove 132 is a first arc-shaped wall 1321 that arches towards the direction away from the mounting hole 11. The inner wall of the arc-shaped groove 132 is arranged sequentially from the inside to the outside, and the inner wall of the arc-shaped groove 132 is a second arc-shaped wall 1322 that arches towards the first arc-shaped wall 1321. That is to say, the arc-shaped groove 132 adopts a crescent-shaped groove. In addition, as Figure 3 As shown, in addition to adopting the form of a second arc-shaped wall 1322, the inner wall of the arc-shaped groove 132 can also be a straight wall 1323 connecting the two ends of the first arc-shaped wall 1321. That is to say, the inner walls of each arc-shaped groove 132 can be enclosed to form a square, a triangle or other polygons.

[0052] In another embodiment, the groove is a strip groove 133, specifically, the strip groove 133 extends along the length or width direction of the crossbeam 1.

[0053] In the above embodiments, the center of the mounting hole 11 is usually located on the center line of the crossbeam 1 extending along its own length.

[0054] Furthermore, when the mounting hole 11 is offset from the center of the crossbeam 1, a groove offset method can be used. Specifically, the two sides of the crossbeam 1 arranged at intervals along its width direction are defined as the first side 141 and the second side 142, respectively. The mounting hole 11 is arranged close to the first side 141, and the groove is located between the mounting hole 11 and the second side 142. The groove can be an arc-shaped groove 132 or a strip-shaped groove 133.

[0055] It should also be noted that the mounting holes 11 on the aforementioned crossbeam 1 may be one or at least two. The following examples illustrate in detail the provision of at least two mounting holes 11 spaced apart along the length of the crossbeam 1.

[0056] In the first embodiment, each mounting hole 11 corresponds to an overflow hole, and the shape of the overflow hole corresponding to each mounting hole 11 is different, see details below. Figures 1-4 .

[0057] In the second embodiment, each mounting hole 11 corresponds to an overflow hole, and the shape of the overflow holes corresponding to each mounting hole 11 is the same. For example, overflow holes that communicate with the corresponding mounting hole 11 can all be used (see...). Figure 5 ), or an arc-shaped groove 132, or a strip groove 133, or an annular groove 131.

[0058] In the third embodiment, specifically, as shown in... Figure 6 As shown, the shape of the overflow hole corresponding to at least one mounting hole 11 is different from the shape of the overflow holes corresponding to the remaining mounting holes 11. That is, the shape of the overflow holes corresponding to some mounting holes 11 is different. The overflow holes can be specifically selected from the above-mentioned arc groove 132, strip groove 133, annular groove 131, and overflow holes connected to the mounting holes 11.

[0059] In the fourth embodiment, specifically, as follows: Figure 9 As shown, the two sides of the crossbeam 1, spaced apart along its width, are defined as the first side 141 and the second side 142, respectively. The mounting holes 11 are located near the first side 141, and the overflow holes are located between the mounting holes 11 and the second side 142, extending along the length of the crossbeam 1. These overflow holes are strip grooves 133. That is, the strip grooves 133 are provided on one side, and one strip groove 133 can accommodate the material squeezed by the corresponding riveting parts 2 after each mounting hole 11 is installed, so as to reduce the deformation of the crossbeam 1.

[0060] In the fifth embodiment, as Figure 7 and Figure 8As shown, the overflow holes extend along the length of the crossbeam 1, forming two strip grooves 133, which are spaced apart along the width of the crossbeam 1. Each mounting hole 11 is located between the two overflow holes. In other words, the overflow holes are provided on both sides to accommodate the material squeezed by the corresponding riveting parts 2 after each mounting hole 11 is installed, thereby reducing the deformation of the crossbeam 1.

[0061] This application also provides a battery mounting structure, which includes a battery module and the aforementioned metal beam structure. The battery module is connected to the crossbeam 1 in the metal beam structure via a riveting member 2.

[0062] It is understandable that when the battery module is fixedly installed to the mounting hole 11 by the rivet 2, the rivet 2 will squeeze the material around the mounting hole 11. The existence of the overflow hole can accommodate the squeezed material, reduce the deformation of the material, and limit the transfer of the squeezed material inside the crossbeam 1, thereby achieving the purpose of reducing the deformation of the crossbeam 1. This is beneficial to ensuring the strength and flatness of the crossbeam 1. Since the crossbeam 1 is set on the battery cold plate, it is beneficial to ensure the fit quality between the crossbeam 1 and the battery cold plate.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A metal beam structure, characterized in that, The device includes a crossbeam (1), which has a mounting hole (11) for fixing a rivet (2) and an overflow hole for accommodating the material squeezed by the rivet (2). The overflow hole is located outside the mounting hole (11).

2. The metal beam structure according to claim 1, characterized in that, The crossbeam (1) has two surfaces spaced apart along the depth direction of the mounting hole (11), namely a first surface (101) and a second surface (102). The riveting member (2) includes an insertion section (21) inserted into the mounting hole (11). One end of the insertion section (21) has a head end (22) with a cross-sectional area that is larger than that of the insertion section (21). The head end (22) is located at the first surface (101) of the crossbeam (1). The overflow hole is provided on the first surface (101).

3. The metal beam structure according to claim 2, characterized in that, The overflow hole is located on the outer periphery of the mounting hole (11), and the overflow hole is a connecting hole (12) formed by extending outward from the outer periphery of the mounting hole (11).

4. The metal beam structure according to claim 2, characterized in that, The overflow hole is a groove formed by recessing from the first surface (101) toward the second surface (102), and there is a gap between the groove and the mounting hole (11).

5. The metal beam structure according to claim 4, characterized in that, The groove is an annular groove (131) surrounding the periphery of the mounting hole (11), and the annular groove (131) extends circumferentially along the mounting hole (11).

6. The metal beam structure according to claim 4, characterized in that, The groove includes at least two circumferentially spaced slots arranged along the mounting hole (11); The groove is an arc-shaped groove (132) extending circumferentially along the mounting hole (11); or, The groove is a strip groove (133) extending along the length or width of the crossbeam (1).

7. The metal beam structure according to claim 6, characterized in that, The groove is an arc-shaped groove (132), and the outer wall of the arc-shaped groove (132) is a first arc-shaped wall (1321) that arches away from the mounting hole (11). The inner wall of the arc-shaped groove (132) and the outer wall of the arc-shaped groove (132) are arranged sequentially from the inside to the outside. The inner wall of the arc-shaped groove (132) is a second arc-shaped wall (1322) that arches towards the first arc-shaped wall (1321). Alternatively, the inner wall of the arc-shaped groove (132) is a straight wall (1323) that connects the two ends of the first arc-shaped wall (1321).

8. The metal beam structure according to claim 4, characterized in that, The two sides of the crossbeam (1) arranged at intervals along its width direction are defined as the first side (141) and the second side (142), respectively. The mounting hole (11) is arranged close to the first side (141), and the groove is located between the mounting hole (11) and the second side (142).

9. The metal beam structure according to any one of claims 1 to 8, characterized in that, The crossbeam (1) is provided with at least two mounting holes (11), and the at least two mounting holes (11) are arranged at intervals along the length direction of the crossbeam (1); Each of the mounting holes (11) corresponds to an overflow hole, and the shape of the overflow holes corresponding to each of the mounting holes (11) is different or the same. Alternatively, the shape of the overflow hole corresponding to at least one of the mounting holes (11) is different from the shape of the overflow holes corresponding to the remaining mounting holes (11); Alternatively, the two sides of the crossbeam (1) arranged at intervals along its width direction are defined as the first side (141) and the second side (142), respectively. The mounting hole (11) is arranged close to the first side (141), and the overflow hole is located between each of the mounting holes (11) and the second side (142) and extends along the length direction of the crossbeam (1). Alternatively, the overflow holes extend along the length of the crossbeam (1), and there are two of them, and they are spaced apart along the width of the crossbeam (1), with each mounting hole (11) located between the two overflow holes.

10. A battery mounting structure, comprising a battery module and a metal beam structure, characterized in that, The metal beam structure is the metal beam structure according to any one of claims 1 to 9, and the battery module is connected to the crossbeam (1) through the riveting member (2).

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