BDU support mounting structure and battery pack

Abstract

The utility model discloses a BDU support mounting structure and a battery pack, and the BDU support mounting structure comprises a BDU support which is provided with a plurality of gourd-shaped holes; the number of the supporting frames is equal to that of the gourd-shaped holes, and the supporting frames and the gourd-shaped holes are arranged in a one-to-one correspondence mode; the fasteners are arranged to be matched with the gourd holes, and the supporting frame is fixedly connected with the BDU support through the fasteners. Due to the arrangement of the gourd-shaped holes, when the BDU support and the supporting frame are connected through fasteners, the fasteners only need to penetrate through the gourd-shaped holes and translate and fasten the BDU support and the supporting frame, and compared with a threaded locking structure of a bolt, the installation efficiency is greatly improved, and the installation cost and the maintenance and replacement cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of batteries, in particular to a BDU support mounting structure and a battery pack. BACKGROUND

[0002] The electric circuit of an electric vehicle includes a power battery system, a motor system and a high-voltage accessory system, and a BDU (battery distribution box assembly) is an important component in the high-voltage circuit of the electric vehicle, which controls the power-on and power-off process, the pre-charging process and the charging process of the high-voltage electrical circuit, and has an important influence on the service life, control strategy and high-voltage electrical safety of the vehicle. The BDU is generally mounted on a BDU support to be fixed in the battery pack through the BDU support. The bottom plate of the battery pack is provided with a plurality of small support frames, and the BDU support is locked and fixed with the plurality of small support frames through bolts to realize stable installation of the BDU support. However, this scheme needs to use a large number of bolts, greatly increasing the labor installation cost and having the defect of low installation efficiency. CONTENT OF THE UTILITY MODEL

[0003] To solve the above-mentioned defects in the prior art, the purpose of the application is to provide a BDU support mounting structure and a battery pack, which can greatly reduce the use of bolts and realize quick installation by setting the hoist hole and the matching fastener, and have the characteristics of high installation efficiency and low labor cost.

[0004] The first aspect of the application provides a BDU support mounting structure, comprising:

[0005] a BDU support, the BDU support being provided with a plurality of hoist holes;

[0006] a support frame, the number of the support frames being equal to the number of the hoist holes, and the support frames being provided in one-to-one correspondence with the hoist holes;

[0007] a fastener, the fastener being provided in matching with the hoist hole, and the support frame being fixedly connected with the BDU support through the fastener.

[0008] As a preferred embodiment, in the first aspect of the application, the hoist hole includes a large hole and a small hole, the large hole and the small hole are provided in communication, the hole diameter of the large hole is greater than the outer diameter of the fastener, and the hole diameter of the small hole is matched with the outer diameter of the fastener.

[0009] As a preferred embodiment, in the first aspect of the application, the fastener includes a base, a connecting rod and a top cover connected in sequence, the outer diameters of the base and the top cover are both greater than the outer diameter of the connecting rod, the support frame is provided with a first connecting hole matched with the connecting rod, the hole diameter of the large hole is greater than the outer diameter of the top cover, the hole diameter of the small hole is matched with the outer diameter of the connecting rod, and the two ends of the connecting rod pass through the first connecting hole and the hoist hole respectively and are connected with the base and the top cover respectively.

[0010] As a preferred embodiment, in the first aspect of the present application, the base abuts against the end face of the support frame away from the BDU support, and the top cover abuts against or is spaced apart from the end face of the BDU support away from the support frame.

[0011] As a preferred embodiment, in the first aspect of the present application, the small hole is arranged to protrude away from the support frame compared with the large hole, the large hole and the small hole are connected through the transition hole, the top cover is spaced apart from the end face of the BDU support away from the support frame at the large hole, and the top cover abuts against the end face of the BDU support away from the support frame at the small hole.

[0012] As a preferred embodiment, in the first aspect of the present application, the BDU support is provided with a locking hole, the number of the support frames is equal to the sum of the number of the gourd holes and the number of the locking holes, and the locking hole is locked and connected with the corresponding support frame through a matching locking piece.

[0013] As a preferred embodiment, in the first aspect of the present application, the locking hole is provided with at most two, the locking hole and the support frame are both threadedly connected with the locking piece, and the support frame is provided with a second connecting hole matched with the locking piece.

[0014] As a preferred embodiment, in the first aspect of the present application, the BDU support is provided with a plurality of mounting holes, the mounting holes are provided with a matching connecting column, and the BDU support is fixedly installed with the BDU through the plurality of connecting columns.

[0015] The second aspect of the present application provides a battery pack, which comprises a shell and the above-mentioned BDU support installation structure, and the BDU support installation structure is installed in the shell.

[0016] As a preferred embodiment, in the second aspect of the present application, the shell is installed with a battery module and an electrical element, the electrical element comprises a BDU, the BDU is installed on the BDU support, and the BDU support is installed on the bottom plate of the shell through a plurality of support frames.

[0017] The BDU support installation structure and the battery pack provided by the present application have the following technical effects:

[0018] The gourd hole is arranged so that when the fastener is used to connect the BDU support and the support frame, the fastener can be translated and fastened through the gourd hole, and compared with the threaded locking structure of the bolt, the installation efficiency is greatly improved, and the installation cost and the maintenance and replacement cost are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic diagram of the BDU support installation structure of the present application;

[0020] Figure 2 FIG. 2 is a structural schematic diagram of the BDU support installation structure of the present application; Figure 1 FIG. 3 is an enlarged view of position A in FIG. 2;

[0021] Figure 3 is an exploded view of the BDU support mounting structure of the present application;

[0022] Figure 4 is a sectional view of the BDU support mounting structure of the present application;

[0023] Figure 5 is an exploded view of the battery pack of the present application.

[0024] Reference signs:

[0025] 1, BDU support; 11, gourd hole; 111, large hole; 112, small hole; 113, transition hole; 12, locking hole; 13, mounting hole; 2, support frame; 21, first connecting hole; 22, second connecting hole; 3, fastener; 31, base; 32, connecting rod; 33, top cover; 4, locking piece; 5, connecting column; 6, shell; 7, battery module. DETAILED DESCRIPTION

[0026] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0027] In the description of the present application, it should be explained that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application.

[0029] Referring to Figures 1-3 , the present application provides a BDU support mounting structure, comprising a BDU support 1, a support frame 2 and a fastener 3, the BDU support 1 is provided with a plurality of gourd holes 11, the plurality of gourd holes 11 are dispersedly provided on the BDU support 1, the number of the support frames 2 is equal to the number of the gourd holes 11, and the support frames 2 are arranged one by one corresponding to the gourd holes 11, the fastener 3 is arranged in the gourd hole 11, and the support frame 2 is fixedly connected with the BDU support 1 through the fastener 3.

[0030] The gourd hole 11 is arranged so that when the BDU support 1 and the support frame 2 are connected by the fastener 3, the fastener 3 passes through the gourd hole 11 and is translated and fastened, that is, the fixed connection of the BDU support 1 and the support frame 2 can be realized. Compared with the threaded locking structure of the bolt, the installation efficiency of the cooperation and installation structure of the fastener 3 and the gourd hole 11 is greatly improved, and the installation cost and the maintenance and replacement cost are greatly reduced.

[0031] The gourd hole 11 includes a large hole 111 and a small hole 112, the large hole 111 and the small hole 112 are arranged in communication, the hole diameter of the large hole 111 is larger than the outer diameter of the fastener 3, and the hole diameter of the small hole 112 is adapted to the outer diameter of the fastener 3. The fastener 3 is connected to the support frame 2 and passes through the large hole 111, and then the fastener 3 is pushed to translate to the small hole 112, so that the fastener 3 can be firmly fixed at the small hole 112 to realize the fixed connection of the BDU support 1 and the support frame 2.

[0032] The fastener 3 can be a common nail structure, the fastener 3 includes a base 31, a connecting rod 32 and a top cover 33 connected in sequence, the outer diameters of the base 31 and the top cover 33 are both larger than the outer diameter of the connecting rod 32, the support frame 2 is provided with a first connecting hole 21 adapted to the connecting rod 32, the hole diameter of the large hole 111 is larger than the outer diameter of the top cover 33, the hole diameter of the small hole 112 is adapted to the outer diameter of the connecting rod 32, and the two ends of the connecting rod 32 pass through the first connecting hole 21 and the gourd hole 11 respectively and are connected to the base 31 and the top cover 33 respectively. The arrangement of the base 31 and the top cover 33 can avoid the disconnection of the connecting rod 32 from the first connecting hole 21 and the small hole 112, thereby ensuring the stability of the connection of the support frame 2 and the BDU support 1 by the fastener 3.

[0033] The base 31 abuts against the end face of the support frame 2 away from the BDU support 1, and the top cover 33 abuts against or is spaced apart from the end face of the BDU support 1 away from the support frame 2. The abutment of the base 31 against the support frame 2 can avoid the axial movement of the connecting rod 32, thereby ensuring the connection effect. The fastener 3 and the support frame 2 can be detachably connected, which is convenient for replacement, or can be an integral structure by welding, which has good connection stability. When the end face of the top cover 33 abuts against the BDU support 1, the two ends of the fastener 3 abut against the BDU support 1 and the support frame 2 respectively, which is conducive to improving the stability of the connection and avoiding the movement of the fastener 3. When the end face of the top cover 33 is spaced apart from the BDU support 1, the movement of the fastener 3 from the large hole 111 to the small hole 112 is facilitated, which is conducive to improving the installation efficiency.

[0034] Further, referring to Figure 3 and Figure 4The small hole 112 is arranged protruding away from the support frame 2 compared with the large hole 111, the large hole 111 and the small hole 112 are connected through the transition hole 113, the end surface of the BDU support 1 at the large hole 111 is arranged away from the support frame 2 with a spacing from the top cover 33, and the end surface of the BDU support 1 at the small hole 112 is arranged abutting against the support frame 2 with the top cover 33. The arrangement of the end surface of the BDU support 1 at the large hole 111 with a spacing from the top cover 33 is conducive to the smooth movement of the fastener 3 from the large hole 111 to the small hole 112 through the transition hole 113, thereby improving the installation efficiency, and the arrangement of the end surface of the BDU support 1 at the small hole abutting against the support frame 2 with the top cover 33 is conducive to improving the stability of the connection and avoiding the movement of the fastener 3. In this way, the structure of the small hole 112 arranged protruding away from the support frame 2 compared with the large hole 111 can have both the efficient installation and the stable installation of the fastener 3.

[0035] On the basis of the above structure, referring to Figure 2 and Figure 3 , the BDU support 1 is provided with a locking hole 12, the number of the support frames 2 is equal to the sum of the number of the gourd holes 11 and the number of the locking holes 12, and the locking hole 12 is locked and connected with the corresponding support frame 2 through the matched locking piece 4. The arrangement of the locking hole 12 can realize the firm locking of the support frame 2 and the BDU support 1 through the locking piece 4, thereby avoiding the occurrence of the situation that the connection between the support frame 2 and the BDU support 1 is loose due to the movement of the fastener 3.

[0036] The locking hole 12 is provided with at most two, the locking hole 12 and the support frame 2 are both threadedly connected with the locking piece 4, and the support frame 2 is provided with a second connecting hole 22 matched with the locking piece 4. The locking piece 4 can be a common bolt structure, and too many locking pieces 4 will increase the installation difficulty and the labor cost and reduce the installation efficiency. The locking hole 12 is provided with one, and the firm locking of the support frame 2 and the BDU support 1 can be realized through the threaded locking. Preferably, the locking hole 12 is provided with two at intervals, which not only has little influence on the installation efficiency, but also can avoid the occurrence of the situation that the connection is loose due to the self-rotation of one threaded locking.

[0037] Based on the above structure, the efficient and firm installation of the BDU support 1 and the support frame 2 can be realized. The BDU support 1 is used for bearing the BDU, the BDU support 1 is provided with a plurality of mounting holes 13, the mounting hole 13 is provided with a matched connecting column 5, and the BDU support 1 is fixedly installed with the BDU through the plurality of connecting columns 5. The BDU matched with the connecting column 5 is provided with an assembly hole, so that the two ends of the connecting column 5 are respectively fixedly inserted into the assembly hole and the mounting hole 13 to realize the firm installation of the BDU on the BDU support 1.

[0038] In addition to the above structure, the application also provides a battery pack, referring to Figure 5 , comprising a shell 6 and the above-mentioned BDU support installation structure, and the BDU support installation structure is installed in the shell 6.

[0039] The battery module 7 and the electrical elements are installed in the shell 6, the electrical elements including the BDU installed on the BDU support 1, the BDU support 1 being installed on the bottom plate of the shell 6 through the support frames 2. The BDU support 1 is stably connected with the support frames 2 through the at most two locking holes 12 and the plurality of gourd holes 11, the at most two locking pieces 4 and the plurality of fastening pieces 3, which not only has high installation efficiency and low installation cost, but also can ensure the stability of the installation. The support frames 2 can be welded on the bottom plate, so that the BDU can be stably installed in the battery pack by assembling the BDU on the BDU support 1.

[0040] The technical means disclosed in the application scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical solutions composed of any combination of the above technical features. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A BDU support mounting structure, characterized by, The application relates to a BDU support (1) provided with a plurality of gourd-shaped holes (11); a plurality of support frames (2) provided with the gourd-shaped holes (11) one by one; and fasteners (3) matched with the gourd-shaped holes (11) and used for fixing the support frames (2) to the BDU support (1). The gourd-shaped hole (11) comprises a large hole (111) and a small hole (112), the large hole (111) and the small hole (112) are communicated, the diameter of the large hole (111) is larger than the outer diameter of the fastener (3), and the diameter of the small hole (112) is matched with the outer diameter of the fastener (3). The fastener (3) comprises a base (31), a connecting rod (32) and a top cover (33) connected in sequence, the outer diameters of the base (31) and the top cover (33) are larger than the outer diameter of the connecting rod (32), the support frame (2) is provided with a first connecting hole (21) matched with the connecting rod (32), the diameter of the large hole (111) is larger than the outer diameter of the top cover (33), the diameter of the small hole (112) is matched with the outer diameter of the connecting rod (32), and the two ends of the connecting rod (32) pass through the first connecting hole (21) and the gourd-shaped hole (11) and are connected with the base (31) and the top cover (33) respectively. The base (31) is abutted against the end surface of the support frame (2) away from the BDU support (1), and the top cover (33) is abutted against or spaced apart from the end surface of the BDU support (1) away from the support frame (2).

2. The BDU support mount structure of claim 1, wherein: The small hole (112) is protruded away from the support frame (2) compared with the large hole (111), the large hole (111) and the small hole (112) are connected through a transition hole (113), the end surface of the BDU support (1) at the large hole (111) away from the support frame (2) is spaced apart from the top cover (33), and the end surface of the BDU support (1) at the small hole (112) away from the support frame (2) is abutted against the top cover (33).

3. The BDU support mount structure of claim 2, wherein: The BDU support (1) is provided with locking holes (12), the number of the support frames (2) is equal to the sum of the number of the gourd-shaped holes (11) and the number of the locking holes (12), and the locking holes (12) are locked and connected with the corresponding support frames (2) through matched locking pieces (4).

4. The BDU support mount structure of claim 3, wherein: The locking holes (12) are provided with at most two, the locking holes (12) and the support frames (2) are all threadedly connected with the locking pieces (4), and the support frames (2) are provided with second connecting holes (22) matched with the locking pieces (4).

5. The BDU support mounting structure of claim 4, wherein: The BDU support (1) is provided with a plurality of mounting holes (13), the mounting holes (13) are provided with matched connecting columns (5), and the BDU support (1) is fixedly mounted with BDUs through the connecting columns (5).

6. The BDU support mounting structure of any of claims 1-5, wherein: The application relates to a BDU support (1) provided with a plurality of gourd-shaped holes (11); a plurality of support frames (2) provided with the gourd-shaped holes (11) one by one; and fasteners (3) matched with the gourd-shaped holes (11) and used for fixing the support frames (2) to the BDU support (1).

7. The BDU support mount structure of claim 6, wherein: ​ 8. The BDU support mounting structure of any of claims 1-5, wherein: ​ 9. A battery pack, characterized by, ​ A housing (6) and a BDU support mounting structure according to any one of claims 1-8, said BDU support mounting structure being mounted in said housing (6).

10. The battery pack of claim 9, wherein: A battery module (7) and electrical components, including a BDU, are mounted in said housing (6), said BDU being mounted on said BDU support (1), said BDU support (1) being mounted on a bottom plate of said housing (6) by means of said support brackets (2).

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