Battery box and battery with same

Abstract

The battery box comprises a plurality of side beams, an upper cover assembly and a lower cover assembly, the plurality of side beams are connected end to end to form an annular frame, and the annular frame is provided with an upper opening and a lower opening; the upper cover assembly is detachably mounted at the upper opening; the lower cover assembly is detachably mounted at the lower opening; a cavity is formed in the side beam, a first rib plate and a second rib plate which are arranged at an interval in the vertical direction are arranged in the cavity, and the first rib plate and the second rib plate are arranged at an included angle. According to the battery box provided by the embodiment of the utility model, the first rib plate and the second rib plate which form the included angle are arranged in the cavity of the side beam, so that the first rib plate and the second rib plate can form a plurality of triangular sub-cavities in the cavity, and the structural strength of the side beam can be further improved. Therefore, through the design of improving the structural strength of the side beam, the side beam can better resist collision, so that the battery module in the battery box is better protected.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic batteries, in particular to a battery box and a battery having the same. Background Art

[0002] With the rapid development and iteration of the automobile industry, the cost of battery packs has become particularly prominent. At the same time, electric vehicles will encounter various complex working conditions during driving. In order to improve the ability of battery packs to cope with various working conditions, the structural strength of the battery pack must be improved, and the design of the battery pack structure directly affects the overall safety performance of the battery pack. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery box, the side beam structure of the battery box has high strength and can better protect the battery module in the battery box.

[0004] According to the battery box of the embodiment of the utility model, the battery box includes: a side beam, a plurality of the side beams are provided, and the plurality of the side beams are connected end to end to construct an annular frame, and the annular frame has an upper opening and a lower opening; an upper cover assembly, and the upper cover assembly is detachably mounted at the upper opening; a lower cover assembly, and the lower cover assembly is detachably mounted at the lower opening; wherein the side beam has a cavity therein, and the cavity has a first rib plate and a second rib plate arranged at intervals along the up and down directions, and the first rib plate and the second rib plate are arranged at an angle to each other.

[0005] According to the battery box of the embodiment of the utility model, by arranging a first rib plate and a second rib plate at an angle to each other in the cavity of the side beam, the first rib plate and the second rib plate can construct a plurality of triangular sub-cavities in the cavity, thereby further improving the structural strength of the side beam. Thus, through the above-mentioned design of improving the structural strength of the side beam, the side beam can better resist collision, thereby better protecting the battery module in the battery box.

[0006] In addition, the battery box according to the utility model may also have the following additional technical features:

[0007] In some embodiments of the present invention, the first rib plate and the second rib plate are used to separate the cavity into three sub-cavities in the upper and lower parts.

[0008] In some embodiments of the utility model, the two wall panels in the width direction of the side beam are respectively the first wall panel and the second wall panel, the first wall panel is located on the outside of the second wall panel, and in the direction from the first wall panel to the second wall panel, the first rib plate and the second rib plate are respectively inclined in directions away from each other.

[0009] In some embodiments of the utility model, the first rib is located above the second rib, the thickness of the first wall panel is equal to that of the second wall panel, and the angle a1 between the first rib and the first wall panel satisfies: 30°≦a1≦45°; the thickness h1 of the first rib and the thickness h of the first wall panel satisfy: 0.4≦h1 / h≦0.65; the angle a2 between the second rib and the first wall panel satisfies: 35°≦a2≦55°; the thickness h1 of the second rib and the thickness h of the first wall panel satisfy: 0.4≦h1 / h≦0.65.

[0010] In some embodiments of the utility model, the battery box also includes a middle beam, two opposite side beams among the multiple side beams are respectively a first side beam and a second side beam, the middle beam is connected between the first side beam and the second side beam, and the middle beam has a plurality of chambers spaced apart in the up and down directions.

[0011] In some embodiments of the utility model, the middle beam has a plurality of four chambers spaced apart in the up-down direction, and reinforcements are provided at both ends of the two middle chambers, and the reinforcements are fixed in the chambers.

[0012] In some embodiments of the present invention, the reinforcement is welded in the cavity, and / or a mounting hole connected to the cavity is provided on the middle beam, and a fixing member passes through the mounting hole to fix the reinforcement in the cavity.

[0013] In some embodiments of the utility model, the battery box also includes side diagonal braces, which include a first support block and a second support block, wherein the first support block and the second support block are respectively located on both sides of the width direction of the middle beam, and the two ends of the middle beam are respectively fixedly connected to the first side beam and the second side beam through the first support block and / or the second support block.

[0014] In some embodiments of the present invention, the side diagonal brace further includes a connecting member, and the connecting member is connected between the first supporting block and the second supporting block.

[0015] The utility model also provides a battery having the battery box of the above embodiment.

[0016] According to the battery of the embodiment of the utility model, by providing the battery box of the above embodiment, the battery module in the battery box can be better protected, thereby making the battery less likely to be damaged, and when the battery is installed on a vehicle, it can better resist the collision force of the vehicle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is an exploded diagram of a battery according to an embodiment of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the battery box according to the utility model without the upper cover assembly.

[0021] Figure 3 It is a structural schematic diagram of the battery box according to the utility model without the upper cover assembly.

[0022] Figure 4 yes Figure 3 Sectional view along line AA.

[0023] Figure 5 yes Figure 4 Magnified view of area B.

[0024] Figure 6 It is a structural schematic diagram of the middle beam and the side diagonal braces of the battery box according to the utility model.

[0025] Figure 7 It is a structural schematic diagram of the middle beam of the battery box according to the utility model.

[0026] Figure 8 It is a schematic structural diagram of a reinforcement member of a battery box according to the utility model.

[0027] Fig. 9 It is a structural schematic diagram of the side diagonal brace of the battery box according to the utility model.

[0028] Fig.10 It is a structural schematic diagram of the side diagonal brace of the battery box according to the utility model.

[0029] Reference numerals:

[0030] Battery box 100,

[0031] Side beam 1, cavity 11, first rib plate 12, second rib plate 13, first wall plate 14, second wall plate 15, first side beam 16, second side beam 17,

[0032] Upper cover assembly 2, lower cover assembly 3, liquid cooling plate 31, bottom guard plate 32,

[0033] Middle beam 4, chamber 41, mounting hole 42,

[0034] Reinforcement 5,

[0035] Side diagonal support 6, first support block 61, second support block 62, connecting member 63,

[0036] Battery module 200 , battery 1000 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "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, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, 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, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Reference below Figure 1-Figure 10 A battery box 100 according to an embodiment of the present invention is described.

[0041] like Figure 1 As shown, the battery box 100 according to the embodiment of the utility model includes a side beam 1, an upper cover assembly 2 and a lower cover assembly 3, a plurality of side beams 1 are provided, and the plurality of side beams 1 are connected end to end to construct a ring-shaped annular frame, the annular frame has an upper opening and a lower opening, the upper cover assembly 2 is detachably mounted at the upper opening, and the lower cover assembly 3 is detachably mounted at the lower opening.

[0042] Reference Figure 1 and Figure 2 As shown, there are four side beams 1, and the four side beams 1 form an annular frame. The upper cover assembly 2 includes an upper cover, which is fixed on the upper side of the annular frame and is used to close the upper opening of the annular frame. The lower cover assembly 3 includes a liquid cooling plate 31 and a bottom guard plate 32, and the liquid cooling plate 31 is located on the upper side of the bottom guard plate 32. The liquid cooling plate 31 and the bottom guard plate 32 are both fixed at the lower opening of the annular frame, so that the battery box 100 is constructed as a closed box, and the battery module 200 can be installed in the battery box 100.

[0043] Furthermore, if Figure 4-Figure 7 As shown, the side beam 1 has a cavity, and by setting the cavity, the side beam 1 can be deformed under the impact force, so that the impact force can be absorbed, and then the battery module 200 in the battery box 100 is protected. Further, the cavity has a first rib plate 12 and a second rib plate 13 arranged at intervals in the up-down direction, and the first rib plate 12 and the second rib plate 13 are arranged at an angle to each other. Therefore, by setting the first rib plate 12 and the second rib plate 13 in the cavity, the structural strength of the side beam 1 can be improved, so that the side beam 1 can better resist the impact force. Further, by making the first rib plate and the second rib plate 13 be arranged in an angled manner, the first rib plate 12 and the second rib plate 13 can construct a plurality of triangular sub-cavities in the cavity, so that the structural strength of the side beam 1 can be further improved. Therefore, through the above-mentioned design of improving the structural strength of the side beam 1, the side beam 1 can better resist the impact, so as to better protect the battery module 200 in the battery box 100.

[0044] According to the battery box 100 of the embodiment of the utility model, by setting a first rib plate and a second rib plate 13 at an angle to each other in the cavity of the side beam 1, the first rib plate 12 and the second rib plate 13 can construct a plurality of triangular sub-cavities in the cavity, thereby further improving the structural strength of the side beam 1. Therefore, through the above-mentioned design of improving the structural strength of the side beam 1, the side beam 1 can better resist collision, thereby better protecting the battery module 200 in the battery box 100.

[0045] Alternatively, if Figure 4-Figure 5 As shown, the first rib plate 12 and the second rib plate 13 are used to separate the cavity into three sub-cavities up and down, that is, the first rib plate 12 and the second rib plate 13 both extend along the length direction of the side beam 1. Optionally, the length of the first rib plate 12 and the second rib plate 13 can be equal to the length of the side beam 1. In this way, the structural strength of the side beam 1 can be better improved.

[0046] Alternatively, if Figure 4-Figure 5As shown, the two wall panels in the width direction of the side beam 1 are respectively the first wall panel 14 and the second wall panel 15. The first wall panel 14 is located on the outer side of the second wall panel 15. In the direction from the first wall panel 14 to the second wall panel 15, the first rib plate 12 and the second rib plate 13 are respectively inclined in directions away from each other. Thus, a trapezoidal structure with the tip facing outward can be constructed between the first rib plate 12, the second rib plate 13 and the second wall panel 15, so that the force can be more evenly distributed to the entire side beam 1, thereby improving the stability and bending and torsion resistance of the overall structure.

[0047] Alternatively, if Figure 4-Figure 5 As shown, the first rib plate 12 is located above the second rib plate 13, the thickness of the first wall plate 14 is equal to that of the second wall plate 15, and the angle a1 between the first rib plate 12 and the first wall plate 14 satisfies: 30°≦a1≦45°; the thickness h1 of the first rib plate 12 and the thickness h of the first wall plate 14 satisfy: 0.4≦h1 / h≦0.65; the angle a2 between the second rib plate 13 and the first wall plate 14 satisfies: 35°≦a2≦55°; the thickness h1 of the second rib plate 13 and the thickness h of the first wall plate 14 satisfy: 0.4≦h1 / h≦0.65. That is to say, the thickness of the first rib 12 is smaller than the thickness of the second rib 13, and further by designing the inclination angles of the first rib 12 and the second rib 13, the bottom of the side beam 1 can have a higher structural strength than the top, so that the side beam 1 has a stable deformation direction when subjected to collision deformation. Such a design can not only ensure the safety of the battery module 200, but also minimize the impact of the collision on other parts of the vehicle body and the passenger compartment.

[0048] In some embodiments of the present invention, Figure 2-Figure 7 As shown, the battery box 100 also includes a middle beam 4, two opposite side beams 1 among the multiple side beams 1 are respectively a first side beam 16 and a second side beam 17, the middle beam 4 is connected between the first side beam 16 and the second side beam 17, and the middle beam 4 has a plurality of chambers 41 spaced apart in the up-down direction. The first side beam 16 and the second side beam 17 are respectively two beam bodies in the left-right direction, and it can be understood that the first side beam 16 and the second side beam 17 can also be two opposite beam bodies in other directions of the battery box 100, and the annular frame surrounded by the multiple side beams 1 can also be not a rectangle, but a pentagon, a hexagon, etc., which is not limited here. By adding a middle beam 4 between the first side beam 16 and the second side beam 17, the first side beam 16 and the second side beam 17 can transmit force to each other, thereby improving the structural strength of the battery box 100 as a whole, so that the battery box 100 can better resist the force from the first side beam 16 or the second side beam 17. Furthermore, by providing a plurality of chambers 41 in the middle beam 4, the middle beam 4 can reduce the force by deformation, thereby better protecting the battery module 200 in the battery box 100.

[0049] In some embodiments of the present invention, Figure 2-Figure 7 As shown, the middle beam 4 has a plurality of four chambers 41 spaced apart in the vertical direction, and reinforcement members 5 are provided at both ends of the two middle chambers 41, and the reinforcement members 5 are fixed in the chambers 41. Figure 8 As shown, the reinforcement 5 is a rectangular block, and the cross-sectional area and cross-sectional shape of the reinforcement 5 are substantially the same as the cross-sectional area and cross-sectional shape of the corresponding cavity 41. By installing the reinforcement 5 at the end of the middle beam 4 and making the reinforcement 5 located in the cavity 41, the structural strength of the middle beam 4 can be improved, and it can also be beneficial for the two ends of the middle beam 4 to be fixedly connected to the first side beam 16 and the second side beam 17 respectively.

[0050] In one example, the reinforcement member 5 can be welded in the cavity 41, and the connection strength between the reinforcement rib and the middle beam 4 can be improved by welding. Figure 2-Figure 7 As shown, the middle beam 4 is provided with a mounting hole 42 communicating with the chamber 41 . The mounting hole 42 can be used as a welding hole, and the reinforcement 5 and the middle beam 4 can be welded through the mounting hole 42 .

[0051] In one example, if Figure 2-Figure 7 As shown, a mounting hole 42 connected to the cavity 41 is provided on the middle beam 4, and a fixing member passes through the mounting hole 42 to fix the reinforcement member 5 in the cavity 41, wherein a plurality of mounting holes 42 may be provided, and the connection strength between the reinforcement rib and the middle beam 4 may be improved by the cooperation of the plurality of mounting holes 42 and the plurality of fixing members.

[0052] In one example, the reinforcement member 5 may be welded in the cavity 41 . Meanwhile, a mounting hole 42 communicating with the cavity 41 is provided on the middle beam 4 , and a fixing member passes through the mounting hole 42 to fix the reinforcement member 5 in the cavity 41 .

[0053] In some embodiments of the present invention, Figure 3 , Figure 6 , Fig. 9 and Fig.10 As shown, the battery box 100 also includes a side diagonal brace 6, which includes a first support block 61 and a second support block 62. The first support block 61 and the second support block 62 are respectively located on both sides of the width direction of the middle beam 4, and the two ends of the middle beam 4 are fixedly connected to the first side beam 16 and the second side beam 17 through the first support block 61 and / or the second support block 62.

[0054] like Figure 3 , Figure 6 , Fig. 9 and Fig.10As shown, one end of the middle beam 4 is fixedly connected to the first side beam 16 through the first support block 61 and the second support block 62, and the other end of the middle beam 4 is fixedly connected to the second side beam 17 through the first support block 61 and the second support block 62. Therefore, by adding the first support block 61 and the second support block 62, the fixing strength between the middle beam 4 and the first side beam 16 and the middle beam 4 and the second side beam 17 can be improved, so that the middle beam 4 can be stably supported between the first side beam 16 and the second side beam 17.

[0055] Optionally, the two ends of the middle beam 4 can be fixedly connected to the first side beam 16 and the second side beam 17 respectively, and then, the first support block 61 and the second support block 62 are fixedly connected between the middle beam 4 and the first side beam 16, and the first support block 61 and the second support block 62 are fixedly connected between the middle beam 4 and the second side beam 17.

[0056] Optionally, the side brace 6 further includes a connecting member 63, and the connecting member 63 is connected between the first supporting block 61 and the second supporting block 62. Figure 3 , Figure 6 , Fig. 9 and Fig.10 As shown, the first support block 61, the second support block 62 and the connecting piece 63 can construct an installation groove, the end of the middle beam 4 can be installed in the installation groove, and then the middle beam 4 equipped with the side brace 6 is fixedly connected to the first side beam 16 and the second side beam 17.

[0057] Alternatively, if Figure 3 , Figure 6 , Fig. 9 and Fig.10 As shown, the first support block 61 and the second support block 62 can both be right-angled triangular prisms, and the two right-angled surfaces of the first support block 61 are fixedly connected to the middle beam 4 and the first side beam 16 respectively, or the two right-angled surfaces of the first support block 61 are fixedly connected to the middle beam 4 and the second side beam 17 respectively, and the two right-angled surfaces of the second support block 62 are fixedly connected to the middle beam 4 and the first side beam 16 respectively, or the two right-angled surfaces of the second support block 62 are fixedly connected to the middle beam 4 and the second side beam 17 respectively, thereby, the first support block 61 can be better fitted with the middle beam 4, the first side beam 16, and the second side beam 17, and the second support block 62 can be better fitted with the middle beam 4, the first side beam 16, and the second side beam 17.

[0058] The utility model also provides a battery 1000 having the battery box 100 of the above embodiment.

[0059] According to the battery 1000 of the embodiment of the utility model, by providing the battery box 100 of the above embodiment, the battery module 200 in the battery box 100 can be better protected, thereby making the battery 100 less likely to be damaged, and when the battery 1000 is installed on a vehicle, it can better resist the collision force of the vehicle.

[0060] Other structures and operations of the battery box 100 and the battery 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0061] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery box, characterized in that: include: Side beams, a plurality of side beams are provided, and the plurality of side beams are connected end to end to construct an annular ring frame, and the annular frame has an upper opening and a lower opening; An upper cover assembly, the upper cover assembly being detachably mounted on the upper opening; A lower cover assembly, wherein the lower cover assembly is detachably mounted at the lower opening; wherein, The side beam has a cavity therein, and the cavity has a first rib plate and a second rib plate arranged at intervals in the up-down direction, and the first rib plate and the second rib plate are arranged at an angle to each other.

2. The battery box according to claim 1, characterized in that: The first rib plate and the second rib plate are used to separate the cavity into three sub-cavities in the upper and lower parts.

3. The battery box according to claim 1 or 2, characterized in that: The two wall panels in the width direction of the side beam are respectively the first wall panel and the second wall panel, the first wall panel is located on the outside of the second wall panel, and in the direction from the first wall panel to the second wall panel, the first rib plate and the second rib plate are respectively inclined in directions away from each other.

4. The battery box according to claim 3, characterized in that: The first rib plate is located above the second rib plate, and the first wall plate has the same thickness as the second wall plate. The angle a1 between the first rib plate and the first wall plate satisfies: 30°≦a1≦45°; the thickness h1 of the first rib plate and the thickness h of the first wall plate satisfy: 0.4≦h1 / h≦0.65; An included angle a2 between the second rib plate and the first wall plate satisfies: 35°≦a2≦55°; a thickness h1 of the second rib plate and a thickness h of the first wall plate satisfy: 0.4≦h1 / h≦0.

65.

5. The battery box according to claim 1, characterized in that: It also includes a middle beam, two opposite side beams among the plurality of side beams are respectively a first side beam and a second side beam, the middle beam is connected between the first side beam and the second side beam, and the middle beam has a plurality of chambers spaced apart in the up-and-down direction.

6. The battery box according to claim 5, characterized in that: The middle beam has a plurality of four chambers spaced apart in the up-down direction, and both ends of the two middle chambers are provided with reinforcements, which are fixed in the chambers.

7. The battery box according to claim 6, characterized in that: The reinforcement is welded in the cavity, and / or a mounting hole communicating with the cavity is provided on the middle beam, and a fixing member passes through the mounting hole to fix the reinforcement in the cavity.

8. The battery box according to claim 5, characterized in that: It also includes side diagonal braces, which include a first support block and a second support block. The first support block and the second support block are respectively located on both sides of the width direction of the middle beam, and the two ends of the middle beam are respectively fixedly connected to the first side beam and the second side beam through the first support block and / or the second support block.

9. The battery box according to claim 8, characterized in that: The side diagonal brace also includes a connecting member, and the connecting member is connected between the first supporting block and the second supporting block.

10. A battery, characterized in that: A battery box comprising any one of claims 1-9.

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