Module boxing positioning structure

Abstract

The utility model relates to the technical field of battery modules, and discloses a module boxing positioning structure which comprises a battery cell module and a box body cross beam, an end plate is installed on one side, close to the box body cross beam, of the battery cell module, a limiting piece protruding upwards is installed on the box body cross beam, a groove matched with the limiting piece is formed in the bottom of the end plate, and the end plate is connected with the box body cross beam. And the end plate is clamped and positioned with the lug boss of the limiting piece through the groove. According to the battery cell module, the end plates are arranged on the two sides of the battery cell module to form the module body, the convex limiting piece is arranged on the box body cross beam, and the grooves formed in the bottom ends of the end plates are clamped with the convex parts of the limiting piece, so that the module body and the box body cross beam are quickly positioned; and meanwhile, the side wall of the groove corresponds to and clings to the periphery of the convex part of the limiting piece, so that the bottom of the end plate can be tightly clamped with the limiting piece, the positioning precision is favorably improved, and the module body is prevented from accidentally moving.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a module box-entering positioning structure. Background Art

[0002] The battery pack is one of the core components of electric vehicles. The battery pack generally includes a box and several battery modules installed in the box. With the rapid development of electric vehicles, the output of power batteries has increased rapidly. At the same time, seeking high-efficiency processes is also the main direction of battery manufacturers. Among them, the efficiency of module loading plays an important role in the battery pack production process.

[0003] The existing module positioning is generally achieved through multiple steps. First, special positioning pins need to be processed and inserted into the fixing holes of the module end plates. Then the module is hoisted into the box. The positioning pins are slowly aligned and inserted into the mounting holes of the box body. The module is positioned using the positioning pins as a guide. Finally, the positioning pins are pulled out and fasteners are inserted to complete the module positioning and fixation.

[0004] However, this technology requires the addition of new dedicated locating pins, which consumes a lot of time when the locating pins are matched with the mounting holes of the box. After the locating pins are pulled out, the fasteners need to be inserted immediately, otherwise the holes may be misaligned due to accidental touching, resulting in positioning failure and the need for re-positioning. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a module box positioning structure.

[0006] The utility model proposes a module box positioning structure, which includes a battery cell module and a box cross beam. An end plate is installed on the side of the battery cell module close to the box cross beam, and an upwardly protruding limiting piece is installed on the box cross beam. A groove matched with the limiting piece is provided at the bottom of the end plate, and the end plate is positioned by clamping with the protruding part of the limiting piece through the groove.

[0007] As a further optimized solution of the utility model, the number of the box cross beams is two, and the two box cross beams are symmetrically distributed at the bottom of both ends of the battery cell module.

[0008] As a further optimized solution of the present invention, there are multiple battery cell modules, and the multiple battery cell modules are evenly distributed along the length direction of the box beam.

[0009] As a further optimized solution of the utility model, a sleeve hole matched with the limiter is opened on the box crossbeam, the bottom end of the limiter is fixedly sleeved in the sleeve hole, and the top end of the limiter protrudes from the upper surface of the box crossbeam.

[0010] As a further optimized solution of the present invention, the height of the groove is consistent with the height of the raised portion of the limiting member, and the side wall of the groove corresponds to and fits tightly to the outer periphery of the raised portion of the limiting member.

[0011] As a further optimized solution of the utility model, mounting holes for accommodating fasteners are opened inside both sides of the end plate, the upper and lower ends of the mounting holes are openings, the lower end opening of the mounting holes is connected to the groove, and a corresponding limit piece is arranged below each mounting hole, and the axis of the mounting hole coincides with the corresponding limit piece.

[0012] As a further optimized solution of the utility model, the fastener is a bolt rod, the limiting member is a nut, the bolt rod passes through the mounting hole from top to bottom, and the bottom end of the bolt rod is threadedly connected to the limiting member.

[0013] The module box positioning structure proposed by the utility model has the following beneficial effects:

[0014] (i) By installing end plates on both sides of the cell module to form a module body, installing a raised stopper on the box crossbeam, and using the groove at the bottom of the end plate to engage with the raised portion of the stopper, the module body and the box crossbeam are quickly positioned. At the same time, the side wall of the groove corresponds to and fits closely to the outer periphery of the raised portion of the stopper, so that the bottom of the end plate can be tightly engaged with the stopper, which is beneficial to improving the positioning accuracy and preventing the module body from accidentally moving;

[0015] (ii) By means of the snap-fit ​​assembly between the groove and the stopper, the shear force of the fastener in the Y-axis direction can be reduced, thereby reducing the risk of fastener failure.

[0016] 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

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 For this utility model Figure 1 A partial enlarged schematic diagram of

[0019] Figure 3 This is a bottom view structural diagram of the end plate of the utility model;

[0020] Figure 4 It is a front cross-sectional structural schematic diagram of the end plate of the utility model.

[0021] Description of the drawings: 1. Battery cell module; 2. Box crossbeam; 3. End plate; 4. Limiting piece; 5. Groove; 6. Mounting hole. DETAILED DESCRIPTION

[0022] 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 symbols throughout represent the same or similar elements or elements with 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.

[0023] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] See also Figure 1-Figure 4 A module into the box positioning structure, comprising a cell module 1 and a box cross beam 2, an end plate 3 is installed on the side of the cell module 1 close to the box cross beam 2, an upwardly protruding stopper 4 is installed on the box cross beam 2, a groove 5 adapted to the stopper 4 is opened at the bottom of the end plate 3, and the end plate 3 is positioned by clamping the groove 5 with the protruding part of the stopper 4;

[0028] The battery module 1 is a hard-shell square battery or a soft-pack battery, and the end plate 3 is a plastic or metal part. An end plate 3 is installed at both ends of the battery module 1 to form a module body;

[0029] The limiting member 4 can be various types of blocks, nuts or wire braces, etc., and the groove 5 is formed by one-step molding or secondary processing;

[0030] Specifically, there are two box cross beams 2, and the two box cross beams 2 are symmetrically distributed at the bottom of both ends of the battery cell module 1, and the two ends of the module body are supported by the two box cross beams 2;

[0031] Furthermore, there are multiple battery cell modules 1, and the multiple battery cell modules 1 are evenly distributed along the length direction of the box crossbeam 2, so as to position and support the multiple module bodies;

[0032] Specifically, a sleeve hole matching the limiter 4 is provided on the box cross beam 2, the bottom end of the limiter 4 is fixedly sleeved in the sleeve hole, and the top end of the limiter 4 protrudes from the upper surface of the box cross beam 2;

[0033] Furthermore, the bottom end of the stopper 4 is fixed in the sleeve hole by riveting or welding, and the top end of the stopper 4 protrudes above the box crossbeam 2 so as to be positioned and docked with the groove 5 at the bottom end of the end plate 3;

[0034] Furthermore, the height of the groove 5 is consistent with the height of the raised portion of the stopper 4, and the side wall of the groove 5 corresponds to and fits closely to the outer periphery of the raised portion of the stopper 4, which can improve the tightness of the clamping connection between the groove 5 and the stopper 4, thereby improving the positioning accuracy of the module body;

[0035] Specifically, mounting holes 6 for accommodating fasteners are provided inside both sides of the end plate 3, the upper and lower ends of the mounting holes 6 are both open, the lower end opening of the mounting holes 6 is connected to the groove 5, and a stopper 4 is correspondingly provided below each mounting hole 6, and the axis of the mounting hole 6 coincides with the axis of the corresponding stopper 4;

[0036] like Figure 4As shown, two spaced apart limiting members 4 are installed on the box cross beam 2, and the two limiting members 4 are respectively arranged below the two mounting holes 6. When the bottom end of the end plate 3 contacts the box cross beam 2, the middle part of the bottom end of the end plate 3 is inserted between the raised parts of the two limiting members 4, and the upper bottom surface of the groove 5 is pressed onto the upper end surface of the limiting member 4. The outer peripheral surface of the raised part of the limiting member 4 is tightly attached to the inner wall of the groove 5, so that the end plate 3 and the box cross beam 2 are quickly positioned. Since both ends of the battery cell module 1 have the end plates 3, the four corners of the bottom end of the battery cell module 1 are positioned, thereby improving the positioning accuracy and positioning stability of the battery cell module 1.

[0037] Specifically, the fastener is a bolt rod, the stopper 4 is a nut, the bolt rod passes through the mounting hole 6 from top to bottom, and the bottom end of the bolt rod is threadedly connected to the stopper 4, so that the module can be put into the box;

[0038] In the actual box-loading process, the module body is hoisted into the box by hoisting equipment and placed near the location where it needs to be installed. The module body is gently moved so that the bottom end of the end plate 3 is inserted between two adjacent limit members 4. After the groove 5 at the bottom end of the end plate 3 is connected to the nut for docking and assembly, the module body is difficult to move, thereby determining that the module body has reached a fixed position. Finally, bolt fasteners are inserted into the mounting holes 6 on both sides of the end plate 3 so that the bottom end of the bolt rod is threadedly connected to the nut, thereby completing the module box-loading and fixing operation.

[0039] In summary, the module box positioning structure proposed in the utility model installs end plates 3 on both sides of the battery cell module 1 to form a module body, installs a raised limiter 4 on the box cross beam 2, and utilizes the groove 5 opened at the bottom end of the end plate 3 to be clamped with the raised portion of the limiter 4 to achieve rapid positioning of the module body and the box cross beam 2. At the same time, the side wall of the groove 5 corresponds to and fits closely with the outer periphery of the raised portion of the limiter 4, so that the bottom of the end plate 3 can be tightly clamped with the limiter 4, which is beneficial to improving the positioning accuracy and avoiding accidental movement of the module body; through the clamping assembly between the groove 5 and the limiter 4, the shear force of the fastener in the Y-axis direction can be reduced, thereby reducing the risk of fastener failure.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A module box positioning structure, comprising a battery cell module (1) and a box crossbeam (2), characterized in that: An end plate (3) is installed on one side of the battery cell module (1) close to the box cross beam (2); an upwardly protruding stopper (4) is installed on the box cross beam (2); a groove (5) matching the stopper (4) is provided at the bottom of the end plate (3); the end plate (3) is positioned by clamping the groove (5) with the protruding portion of the stopper (4).

2. A module box positioning structure according to claim 1, characterized in that: The number of the box cross beams (2) is two, and the two box cross beams (2) are symmetrically distributed at the bottom of both ends of the battery cell module (1).

3. A module box positioning structure according to claim 2, characterized in that: There are multiple battery cell modules (1), and the multiple battery cell modules (1) are evenly distributed along the length direction of the box crossbeam (2).

4. A module box positioning structure according to claim 1, characterized in that: A sleeve hole matched with the limiting member (4) is provided on the box cross beam (2), the bottom end of the limiting member (4) is fixedly sleeved in the sleeve hole, and the top end of the limiting member (4) protrudes from the upper surface of the box cross beam (2).

5. The module box positioning structure according to claim 1, characterized in that: The height of the groove (5) is consistent with the height of the raised portion of the limiting member (4), and the side wall of the groove (5) corresponds to and fits tightly to the outer periphery of the raised portion of the limiting member (4).

6. The module box positioning structure according to claim 1, characterized in that: Both sides of the end plate (3) are provided with mounting holes (6) for accommodating fasteners. The upper and lower ends of the mounting holes (6) are both open. The lower end opening of the mounting holes (6) is connected to the groove (5). A stopper (4) is correspondingly provided below each mounting hole (6), and the axis of the mounting hole (6) coincides with the axis of the corresponding stopper (4).

7. A module box positioning structure according to claim 6, characterized in that: The fastener is a bolt rod, the limiting member (4) is a nut, the bolt rod passes through the mounting hole (6) from top to bottom, and the bottom end of the bolt rod is threadedly connected to the limiting member (4).

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