Lower box body of battery

Abstract

The utility model discloses a lower box body of a battery, and relates to the technical field of batteries. The battery lower box body comprises a main body and an anti-collision assembly, the anti-collision assembly is rotatably arranged on the outer surface of the main body, and the anti-collision assembly is used for rolling under the collision condition. The battery lower box body provided by the utility model can disperse impact force when being impacted, and is higher in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a lower battery box body. Background Art

[0002] The batteries installed in vehicles are generally exposed under the vehicle chassis. During the driving of the vehicle, the lower box body of the battery is extremely vulnerable to the impact of ground splashes or the direct impact of ground protrusions. Since the current lower battery box bodies on the market lack a design for dispersing the impact force, the lower box body is prone to deformation after being impacted, thereby damaging the internal components of the box body. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lower battery box body, which can disperse the impact force when being impacted and avoid damage and deformation.

[0004] An embodiment of the utility model provides a technical solution:

[0005] A lower battery box body includes a main body and an anti-collision component. The anti-collision component is rotatably arranged on the outer surface of the main body, and the anti-collision component is used for rolling in the case of being impacted.

[0006] In an alternative embodiment, the main body includes a bottom plate and a plurality of side plates annularly arranged on the periphery of the bottom plate. The bottom plate and the plurality of side plates jointly enclose an electric core cavity, and the anti-collision component is arranged on the outer surface of at least one of the side plates.

[0007] In an alternative embodiment, a reinforcing depression is formed on the inner surface of the bottom plate, and a reinforcing protrusion corresponding to the reinforcing depression is formed on the outer surface of the bottom plate.

[0008] In an alternative embodiment, among the plurality of side plates, there is a first side plate. An installation groove is formed on the outer surface of the end of the first side plate close to the bottom plate, and the anti-collision component is arranged in the installation groove.

[0009] In an alternative embodiment, installation parts are arranged on the groove wall of the installation groove. The anti-collision component includes an anti-collision roller and a roller shaft. The roller shaft is accommodated in the installation groove and connected to the installation parts, and at least one anti-collision roller is rotatably arranged on the roller shaft.

[0010] In an alternative embodiment, the number of the installation parts is multiple. Two of the multiple installation parts are respectively at both ends of the groove wall of the installation groove in the length direction, and one of the multiple installation parts is at the middle position of the groove wall of the installation groove in the length direction.

[0011] In an alternative embodiment, the first side plate has a first plate segment, a second plate segment and a third plate segment. One side of the first plate segment is connected to the bottom plate, and the side of the first plate segment away from the bottom plate is connected to the second plate segment at an angle to enclose the installation groove. The side of the second plate segment away from the first plate segment is connected to the third plate segment, and the angle between the inner surface of the third plate segment and the inner surface of the bottom plate is between 90° and 180°.

[0012] In an alternative embodiment, the number of the first side plates is two, and the two first side plates are oppositely arranged at opposite ends of the bottom plate.

[0013] In an alternative embodiment, the plurality of side plates further includes two second side plates, and the two second side plates are oppositely arranged between the two first side plates to jointly enclose the battery cell cavity, and the second side plates are perpendicular to the bottom plate.

[0014] In an alternative embodiment, reinforcing ribs are provided on the second side plates.

[0015] Compared with the prior art, the battery lower box body provided by the present utility model is rotatably provided with an anti-collision assembly on its outer surface. The anti-collision assembly is used to roll when being impacted, so as to disperse the impact force and avoid deformation and damage of the battery lower box body. Therefore, the beneficial effects of the battery lower box body provided by the present utility model include: being able to disperse the impact force when being impacted and having higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a schematic structural view of the battery lower box body provided by the embodiment of the present utility model from a first perspective;

[0018] Figure 2 It is a schematic structural view of the battery lower box body provided by the embodiment of the present utility model from a second perspective;

[0019] Figure 3 It is a partial structural view of the battery lower box body provided by the embodiment of the present utility model;

[0020] Figure 4 It is an exploded schematic view of a partial structure of the battery lower box body provided by the embodiment of the present utility model.

[0021] Icon: 100 - Lower battery box; 110 - Main body; 111 - Bottom plate; 1111 - Reinforcing depression; 1112 - Reinforcing protrusion; 112 - Cell cavity; 113 - First side plate; 1131 - Mounting groove; 1132 - Mounting part; 1133 - First plate section; 1134 - Second plate section; 1135 - Third plate section; 114 - Second side plate; 1141 - Reinforcing rib; 120 - Anti-collision roller; 130 - Roller shaft. Detailed implementation

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, terms such as "set" and "connected" should be understood in a broad sense. For example, "connected" 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] The following will combine with the drawings to elaborate on the specific implementation manners of the present utility model in detail.

[0029] Embodiment

[0030] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 As shown in Figure 2 is a schematic structural view of the battery lower box body 100 provided by this embodiment from a first perspective, Figure 3 as shown in

[0031] is a schematic structural view of the battery lower box body 100 from a second perspective,

[0032] as shown in

[0033] is a partial schematic structural view of the battery lower box body 100.

[0034] The battery lower box body 100 provided by the embodiment of the present utility model includes a main body 110 and an anti-collision component. The main body 110 is used to connect with the box body cover to enclose a box space for accommodating the module. The anti-collision component is rotatably arranged on the outer surface of the main body 110. The anti-collision component is used to roll under the condition of being impacted to disperse the impact force received by the battery lower box body 100 and avoid the battery lower box body 100 from being deformed due to concentrated impact.

[0035] In order to improve the strength of the bottom plate 111 and thus enhance the overall strength of the box body, in this embodiment, a reinforcing depression 1111 is formed on the inner surface of the bottom plate 111, and a reinforcing protrusion 1112 corresponding to the reinforcing depression 1111 is formed on the outer surface of the bottom plate 111.

[0036] It can be understood that the arrangement of the reinforcing depression 1111 and the reinforcing protrusion 1112 on the bottom plate 111 significantly improves the strength of the bottom plate 111. In this embodiment, the reinforcing depression 1111 is columnar, and the surface of the corresponding reinforcing protrusion 1112 is smooth. The reinforcing protrusion 1112 can avoid stress concentration when being impacted, disperse the impact force and quickly separate from the impact object.

[0037] In order to further improve the structural strength, in this embodiment, the number of the reinforcing depressions 1111 is multiple, and the multiple reinforcing depressions 1111 are arranged in an array on the bottom plate 111.

[0038] Among the multiple side plates, there is a first side plate 113. An installation groove 1131 is formed on the outer surface of one end of the first side plate 113 close to the bottom plate 111, and an anti-collision component is arranged in the installation groove 1131.

[0039] Actually, the length direction of the installation groove 1131 is horizontal, and the installation groove 1131 is located at one end where the first side plate 113 is connected to the bottom plate 111. In other words, the anti-collision component is arranged in the installation groove 1131, which is equivalent to being arranged at the corner position where the first side plate 113 is connected to the bottom plate 111, so as to achieve anti-collision protection for this corner position.

[0040] Specifically, the anti-collision component includes anti-collision rollers 120 and a roller shaft 130. The roller shaft 130 extends along the length direction of the installation groove 1131 in the installation groove 1131, and multiple anti-collision rollers 120 are rotatably sleeved on the roller shaft 130. In other words, the multiple anti-collision rollers 120 can roll in the vertical plane.

[0041] In practical applications, when the anti-collision roller 120 hits a ground protrusion, the anti-collision roller 120 rolls, thereby driving the battery lower box body 100 over the ground protrusion, playing a role in dispersing the impact force and protecting the battery lower box body 100 from being damaged by the impact.

[0042] Please refer to Figure 4, for the installation of the anti-collision component, in this embodiment, mounting members 1132 are provided on the groove wall of the installation groove 1131. The number of the mounting members 1132 is multiple. Two of the multiple mounting members 1132 are respectively located at both ends of the groove wall of the installation groove 1131 in the length direction, and one of the multiple mounting members 1132 is located at the middle position of the groove wall of the installation groove 1131 in the length direction. In other words, two of the multiple mounting members 1132 are respectively located at both ends of the roller shaft 130 and connected to both ends of the roller shaft 130, and one of the multiple mounting members 1132 is located at the middle position of the roller shaft 130 and connected to the middle position of the roller shaft 130.

[0043] It can be understood that the two mounting members 1132 located at both ends of the roller shaft 130 realize the support for both ends of the roller shaft 130, so that the roller shaft 130 can be stably spanned between the two mounting members 1132, and the mounting member 1132 located at the middle position of the roller shaft 130 plays a role in supporting the middle position of the mounting member 1132, avoiding deformation of the middle position of the mounting member 1132 due to excessive length dimensions.

[0044] Actually, the number of the first side plates 113 is two. The two first side plates 113 are oppositely arranged at opposite ends of the bottom plate 111, and moreover, the two first side plates 113 are located at both ends of the length direction of the reinforcing recess 1111. Anti-collision components are provided on both of the two first side plates 113.

[0045] It can be understood that the two ends where the two first side plates 113 are located are the two ends in the vehicle forward and reverse directions, and also the two ends where the battery is most likely to be impacted during driving. Anti-collision components are provided on both of the two first side plates 113, which can ensure that the battery can be protected against collision during the forward or reverse movement of the vehicle.

[0046] In this embodiment, the first side plate 113 has a first plate section 1133 and a second plate section 1134. One side of the first plate section 1133 is connected to the bottom plate 111, and the side of the first plate section 1133 away from the bottom plate 111 is connected to the second plate section 1134 to enclose the installation groove 1131.

[0047] Actually, the first plate section 1133 is substantially vertical, while the second plate section 1134 is substantially horizontal. One side of the second plate section 1134 is connected to one side of the first plate section 1133 at an angle, that is, an angular space is enclosed. Define this angular space as the installation groove 1131. The anti-collision component is accommodated in the installation groove 1131. The mounting member 1132 is connected to the groove wall of the installation groove 1131. The installation groove 1131 realizes the accommodation of the anti-collision roller 120, avoiding the anti-collision roller 120 protruding too much from the first side plate 113 or the bottom plate 111 and being more vulnerable to impact.

[0048] The first side plate 113 further has a third plate segment 1135. One side of the second plate segment 1134 away from the first plate segment 1133 is connected to the third plate segment 1135. The included angle between the inner surface of the third plate segment 1135 and the inner surface of the bottom plate 111 is between 90° and 180°.

[0049] In other words, the third plate segment 1135 is inclined relative to the vertical direction. When the ground splash hits the third plate segment 1135, its inclined surface can disperse the impact force and play a role in protecting the battery from collision.

[0050] In addition, the plurality of side plates further includes a second side plate 114. Two second side plates 114 are oppositely arranged between the two first side plates 113 to jointly enclose the battery cell cavity 112. The second side plate 114 is perpendicular to the bottom plate 111, and a reinforcing rib 1141 is provided on the second side plate 114.

[0051] In this embodiment, the reinforcing rib 1141 is formed by stamping the outer surface of the second side plate 114, and the reinforcing rib 1141 extends in the vertical direction, and its extension length approximately accounts for 30% to 60% of the vertical height of the second side plate 114. The reinforcing rib 1141 plays a role in enhancing the strength of the second side plate 114, thereby further enhancing the overall strength of the battery and enabling the battery to have stronger anti-impact ability.

[0052] In summary, the battery lower box body 100 provided in this embodiment can disperse the impact force when being impacted and has higher safety.

[0053] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A battery lower box, characterized in that: It comprises a main body (110) and an anti-collision component, wherein the anti-collision component is rotatably arranged on the outer surface of the main body (110), and the anti-collision component is used to roll when being hit; The main body (110) comprises a bottom plate (111) and a plurality of side plates arranged around the periphery of the bottom plate (111); the bottom plate (111) and the plurality of side plates together enclose a cell cavity (112); and the anti-collision component is arranged on the outer surface of at least one of the side plates.

2. The battery lower box according to claim 1, characterized in that: A reinforcement recess (1111) is formed on the inner surface of the bottom plate (111), and a reinforcement protrusion (1112) is formed on the outer surface of the bottom plate (111) corresponding to the reinforcement recess (1111).

3. The battery lower box according to claim 1, characterized in that: The plurality of side panels include a first side panel (113), wherein an outer surface of the first side panel (113) at one end close to the bottom panel (111) is formed with a mounting groove (1131), and the anti-collision component is arranged in the mounting groove (1131).

4. The battery lower box according to claim 3, characterized in that: A mounting member (1132) is arranged on the groove wall of the mounting groove (1131); the anti-collision component comprises an anti-collision roller (120) and a roller shaft (130); the roller shaft (130) is accommodated in the mounting groove (1131) and connected to the mounting member (1132); and at least one anti-collision roller (120) is rotatably arranged on the roller shaft (130).

5. The battery lower box according to claim 4, characterized in that: There are multiple mounting members (1132), two of which are respectively located at two ends of the groove wall of the mounting groove (1131) in the length direction, and one of which is located in the middle of the groove wall of the mounting groove (1131) in the length direction.

6. The battery lower box according to claim 3, characterized in that: The first side plate (113) comprises a first plate segment (1133), a second plate segment (1134) and a third plate segment (1135); one side of the first plate segment (1133) is connected to the bottom plate (111); the side of the first plate segment (1133) away from the bottom plate (111) is connected to the second plate segment (1134) at an angle to form the mounting groove (1131); the side of the second plate segment (1134) away from the first plate segment (1133) is connected to the third plate segment (1135); the angle between the inner surface of the third plate segment (1135) and the inner surface of the bottom plate (111) is between 90° and 180°.

7. The battery lower box according to claim 3, characterized in that: The number of the first side plates (113) is two, and the two first side plates (113) are arranged oppositely at two ends of the bottom plate (111).

8. The battery lower box according to claim 7, characterized in that: The plurality of side panels also include two second side panels (114), the two second side panels (114) being arranged opposite to each other between the two first side panels (113) so as to jointly enclose the battery cell cavity (112), and the second side panels (114) being perpendicular to the bottom panel (111).

9. The battery lower box according to claim 8, characterized in that: The second side plate (114) is provided with a reinforcing rib (1141).

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