Battery pack assembling structure

Abstract

The utility model discloses a battery pack assembling structure, and relates to the technical field of assembling structures. The device specifically comprises at least one quick-mounting assembly, and each quick-mounting assembly comprises a mounting beam which can be mounted on a frame and is provided with at least two elastic ejector pins; the mounting columns are connected to the side wall of the battery pack and are in one-to-one correspondence with the elastic ejector pins, accommodating grooves are formed in the side walls of the mounting columns, and inclined chamfers which are convenient for telescopic shafts of the elastic ejector pins to slide into the accommodating grooves so as to be clamped with the mounting columns are arranged at one ends, far away from the battery pack, of the mounting columns. The utility model aims to reduce battery packaging timing errors and improve the assembly efficiency at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly structures, in particular to a battery packaging assembly structure. Background Art

[0002] In modern industrial production, especially in the automotive industry, the traditional assembly of power battery packs and body in white (BIW) is usually fixed by connecting bolts and nuts. This method is simple, economical, easy to operate, and has been widely used.

[0003] Since it uses bolts and nuts, the fixing and disassembly process generally needs to be done manually. Although manual work can ensure efficient and accurate installation, this labor-intensive method means that there must be a large number of workers on the assembly line to meet production needs. At the same time, due to the small size of the sleeve at the installation point and the high tolerance requirements of the installation plane, it is easy to assemble the wrong hole when manually fixing the bolts. Because there are errors in manual operation, both human visual judgment and operating skills will have more or less deviations, so it is easy to have problems such as wrong holes. If this happens, it will not only affect the assembly quality, but may also cause damage to the body in white or the battery pack, delay production progress, and will inevitably bring unnecessary losses to the company.

[0004] Therefore, how to reduce the error in battery packaging timing and improve assembly efficiency has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The main purpose of the utility model is to provide a battery packaging assembly structure, aiming to reduce the error in battery packaging assembly and improve assembly efficiency.

[0006] In order to achieve the above-mentioned object, the utility model provides a battery pack assembly structure, including at least one quick assembly component, wherein the quick assembly component includes:

[0007] A mounting beam, which can be mounted on the vehicle frame, wherein at least two elastic ejectors are provided on the mounting beam; and

[0008] A plurality of mounting posts are connected to the side walls of the battery pack and correspond one-to-one with the elastic ejector pins. A receiving groove is provided on the side walls of the mounting posts. An end of the mounting posts away from the battery pack is provided with an inclined chamfer for facilitating the elastic ejector pin telescopic shaft to slide into the receiving groove to form a snap connection with the mounting posts.

[0009] In an embodiment of the present application, when the length direction of each of the elastic ejector pins is parallel to the length direction of the mounting beam, the expansion and contraction directions of any two adjacent elastic ejector pins are opposite.

[0010] In one embodiment of the present application, the side surface of the retractable shaft of the elastic ejector pin is formed from a portion that first contacts the mounting column to a free end of the retractable shaft, which is an inclined arc surface.

[0011] In one embodiment of the present application, a surface of the telescopic axis of the elastic ejector pin opposite to the inclined arc surface is a plane.

[0012] In an embodiment of the present application, the shape of the receiving groove is the same as the shape of the elastic ejector pin and / or the size of the receiving groove is equal to the size of the elastic ejector pin.

[0013] In one embodiment of the present application, a side of the accommodating groove that is away from the battery pack in a horizontal direction is open.

[0014] In one embodiment of the present application, there are two quick-release components.

[0015] In one embodiment of the present application, the number of the elastic ejector pins is four.

[0016] In one embodiment of the present application, the mounting beam and the vehicle frame are connected in a detachable manner.

[0017] By adopting the above technical solution, the battery pack assembly structure adopts a quick-install component, which is composed of a mounting beam and a plurality of mounting columns corresponding to the elastic ejector pins, realizing simple and efficient assembly and disassembly. The working efficiency of the production line is greatly improved and the production cycle is shortened. Through the one-to-one correspondence between the elastic ejector pins and the mounting columns, as well as the design of the accommodating grooves and inclined chamfers on the side walls, the components can be accurately matched, reducing the assembly misalignment phenomenon that may occur during the installation process, and reducing the loss and error rate of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0019] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of some explosion structures;

[0021] 10. Mounting beam; 20. Battery pack; 21. Mounting column; 211. Accommodating groove; 30. Elastic ejector pin. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0023] like Figure 1 to Figure 2 As shown, in order to achieve the above-mentioned purpose, the utility model proposes a battery pack 20 assembly structure, including at least one quick assembly component, and the quick assembly component includes:

[0024] A mounting beam 10, which can be mounted on a vehicle frame, and at least two elastic ejector pins 30 are provided on the mounting beam 10; and

[0025] A plurality of mounting posts 21 are connected to the side walls of the battery pack 20 and correspond one-to-one with the elastic ejector pins 30. A receiving groove 211 is provided on the side walls of the mounting posts 21. An end of the mounting posts 21 away from the battery pack 20 is provided with an inclined chamfer for facilitating the telescopic axis of the elastic ejector pin 30 to slide into the receiving groove 211 to form a snap connection with the mounting posts 21.

[0026] Specifically, a battery pack 20 assembly structure includes one or more quick-release components. When there are two quick-release components, the two quick-release components are arranged relative to each other to facilitate the quick installation of the battery pack 20; when there are three quick-release components, the three quick-release components are C-shaped, which facilitates the installation of the battery pack 20 and improves the connection strength between the battery pack 20 and the vehicle body; when there are four quick-release components, the four quick-release components are mouth-shaped and are arranged around the battery pack 20 to further improve the connection strength between the battery pack 20 and the vehicle body.

[0027] The quick-install assembly includes: a mounting beam 10, an elastic ejector pin 30, and a mounting column 21. Among them, the mounting beam 10 is made of metal materials, such as aluminum alloy materials, alloy steel materials, etc. The mounting beam 10 made of metal materials has the advantages of strong supporting capacity and wear resistance. The mounting beam 10 is connected to the frame in a fixed connection manner, such as welding, etc. The mounting beam 10 is connected to the frame in a fixed connection manner, which can improve the connection strength between the mounting beam 10 and the frame. Of course, according to the design requirements, the mounting beam 10 and the frame can also be connected in a detachable manner, such as screw connection, bolt connection, etc. The mounting beam 10 and the frame are connected in a detachable manner, which can facilitate the installation and disassembly of the mounting beam 10 and facilitate later maintenance.

[0028] At least two elastic ejector pins 30 are connected to the mounting beam 10. For the convenience of description, four elastic ejector pins 30 are described in this application, namely, a first ejector pin, a second ejector pin, a third ejector pin, and a fourth ejector pin. The first ejector pin, the second ejector pin, the third ejector pin, and the fourth ejector pin are all connected to the mounting beam 10.

[0029] The number of mounting posts 21 is the same as the number of elastic ejector pins 30, and the positions correspond to the positions of the first ejector pin, the second ejector pin, the third ejector pin, and the fourth ejector pin. A receiving groove 211 is provided on the side wall of the mounting post 21, and the telescopic end of the elastic ejector pin 30 can be inserted into the receiving groove 211. Since the receiving groove 211 is provided on the side wall of the mounting post 21 and the mounting post 21 is installed vertically, the elastic ejector pin 30 should be installed horizontally. An inclined chamfer is provided on the end of the mounting post 21 away from the battery pack 20 to facilitate the elastic ejector pin 30 to slide into the receiving groove 211, so that a snap-fit ​​relationship is formed between the elastic ejector pin 30 and the receiving groove 211, thereby realizing the installation of the battery pack 20. It can be imagined that the opening direction of the accommodating groove 211 can be toward the battery pack 20 body, and at this time the length direction of the elastic ejector pin 30 is perpendicular to the length direction of the battery pack 20 body; when the opening of the accommodating groove 211 is toward the length direction of the battery pack 20 body, at this time the length direction of the elastic ejector pin 30 is parallel to the length direction of the battery pack 20 body.

[0030] The installation process is as follows:

[0031] First, the battery pack 20 is placed flat on the automatic guided vehicle (AGV), and then positioned by infrared scanning to ensure that the mounting column 21 on the battery pack 20 is completely aligned with the mounting beam 10 fixed on the vehicle frame. After the holes are aligned, the AGV lifts the battery pack 20, and the mounting column 21 on the battery pack 20 contacts the elastic ejector 30 on the vehicle frame. This contact mechanism ensures the neatness and accuracy of the joint.

[0032] After reaching the assembly height, the previously compressed spring returns to the state before assembly, and then the battery pack 20 and the vehicle frame are assembled.

[0033] When the mounting beam 10 is detachably connected to the frame, the mounting beam 10 can be separated from the battery pack 20 by simply removing the mounting beam 10 from the frame. This makes the disassembly process of the battery pack 20 very direct and quick, greatly improving the efficiency of maintenance and battery replacement.

[0034] By adopting the above technical solution, the assembly structure of the battery pack 20 adopts a quick-install component, which is composed of a mounting beam 10 and a plurality of mounting columns 21 corresponding to the elastic ejector pins 30, so as to realize simple and efficient assembly and disassembly. The working efficiency of the production line is greatly improved and the production cycle is shortened. Through the one-to-one correspondence between the elastic ejector pins 30 and the mounting columns 21, as well as the design of the accommodating grooves 211 and the inclined chamfers on the side walls, the components can be accurately matched, the phenomenon of assembly misalignment that may occur during the installation process is reduced, and the loss and error rate of the components are reduced.

[0035] In one embodiment of the present application, when the length directions of the elastic ejector pins 30 are parallel to the length direction of the mounting beam 10 , the expansion and contraction directions of any two adjacent elastic ejector pins 30 are opposite.

[0036] Specifically, when the length directions of the elastic ejector pins 30 are parallel to the length direction of the mounting beam 10, the opening direction of the accommodating groove 211 is opposite to the elastic ejector pins 30, and the expansion and contraction directions of any adjacent elastic ejector pins 30 are opposite. Correspondingly, the opening directions of any two adjacent accommodating grooves 211 are also opposite. At this time, the battery pack 20 can remain stable regardless of sudden acceleration or deceleration during driving or the impact of sudden situations.

[0037] By adopting the above technical solution and this assembly method, the battery pack 20 is more accurately fixed on the frame, and the stability and safety are significantly improved. Whether it is during rapid acceleration or deceleration during driving, or under the impact of sudden situations, the battery pack 20 can remain stable, thereby avoiding possible safety risks.

[0038] In one embodiment of the present application, the side surface of the telescopic shaft of the elastic ejector 30 is an inclined arc surface from the portion that first contacts the mounting column 21 to the free end of the telescopic shaft.

[0039] With the above technical solution, the inclined arc surface provides a gentle guiding mechanism. When the battery pack 20 is aligned and starts to rise, the telescopic shaft of the elastic ejector pin 30 of the mounting beam 10 will smoothly contact the inclined chamfer of the mounting column 21 and slide into the receiving groove 211. In this process, the arc surface design can reduce damage to the contact surface and increase the life of the connection. The inclined arc surface can reduce the resistance during installation, making it easier for the telescopic shaft of the elastic ejector pin 30 to enter the receiving groove 211 provided in the mounting column 21, reducing the strength requirements for assembly and reducing the requirements for machinery or personnel.

[0040] In one embodiment of the present application, a surface of the telescopic axis of the elastic ejector 30 opposite to the inclined arc surface is a plane.

[0041] With the above technical solution, the side of the telescopic axis of the elastic ejector pin 30 opposite to the inclined arc surface is a plane, and the contact between the plane and the corresponding part can provide a more stable support surface, thereby enhancing the stability of the entire connection structure, thereby preventing the elastic ejector pin 30 from slipping out of the receiving groove 211. In particular, under the vibration caused by the vehicle running, it can ensure that the parts are connected more tightly and reliably.

[0042] In an embodiment of the present application, the shape of the receiving groove 211 is the same as the shape of the elastic ejector pin 30 and / or the size of the receiving groove 211 is equal to the size of the elastic ejector pin 30 .

[0043] By adopting the above technical solution, the consistency of shape and size can ensure that the elastic ejector pin 30 can be accurately installed in the receiving groove 211, which increases the accuracy of assembly, avoids the phenomenon of misalignment during assembly, and improves the overall quality of the product. At the same time, the high consistency of the shape and size of the receiving groove 211 and the elastic ejector pin 30 makes the connection tighter and enhances the joint stability, which is conducive to improving the overall stability of the battery pack 20 during use and reducing the risks caused by unstable installation.

[0044] In one embodiment of the present application, a side of the receiving groove 211 away from the battery pack 20 in the horizontal direction is open.

[0045] By adopting the above technical solution, when the mounting beam 10 is removed from the vehicle frame, the elastic ejector pin 30 on the mounting beam 10 can be conveniently removed from the accommodating groove 211 .

[0046] In one embodiment of the present application, there are two quick-release components.

[0047] In one embodiment of the present application, the number of the elastic ejector pins 30 is four.

[0048] In one embodiment of the present application, the mounting beam 10 is detachably connected to the frame. With the above technical solution, when the mounting beam 10 or the frame fails or is damaged, the detachable connection makes maintenance and replacement of parts easier and faster.

[0049] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A battery packaging structure, characterized in that: The invention comprises at least one quick-install component, wherein the quick-install component comprises: A mounting beam, which can be mounted on the vehicle frame, wherein at least two elastic ejectors are provided on the mounting beam; and A plurality of mounting posts are connected to the side walls of the battery pack and correspond one-to-one with the elastic ejector pins. A receiving groove is provided on the side walls of the mounting posts. An end of the mounting posts away from the battery pack is provided with an inclined chamfer for facilitating the elastic ejector pin telescopic shaft to slide into the receiving groove to form a snap connection with the mounting posts.

2. The battery pack assembly structure according to claim 1, characterized in that: When the length directions of the elastic ejectors are parallel to the length direction of the mounting beam, the expansion and contraction directions of any two adjacent elastic ejectors are opposite.

3. The battery pack assembly structure according to claim 1, characterized in that: The portion of the side surface of the elastic ejector telescopic shaft that first contacts the mounting column to the free end of the telescopic shaft is an inclined arc surface.

4. The battery packaging structure according to claim 3, characterized in that: A surface of the telescopic shaft of the elastic ejector pin opposite to the inclined arc surface is a plane.

5. The battery pack assembly structure according to any one of claims 1 to 4, characterized in that: The shape of the accommodating groove is the same as that of the elastic ejector pin and / or the size of the accommodating groove is equal to that of the elastic ejector pin.

6. The battery packaging structure according to claim 2, characterized in that: A side of the accommodating groove away from the battery pack in a horizontal direction is open.

7. The battery pack assembly structure according to claim 1, characterized in that: There are two quick-install components.

8. The battery packaging assembly structure according to claim 1, characterized in that: The number of the elastic ejector pins is four.

9. The battery packaging assembly structure according to claim 1, characterized in that: The mounting beam is connected to the vehicle frame in a detachable manner.

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