Mounting device of battery pack plug connector and battery pack

Abstract

The utility model relates to the technical field of battery packs, and discloses a mounting device of a battery pack plug connector and a battery pack. A cavity is formed in the box body cross beam and extends in the length direction of the box body cross beam. The box body cross beam further comprises a first through hole and a second through hole, and the first through hole and the second through hole are oppositely formed and located in a first side plate and a second side plate which are oppositely arranged in the width direction of the box body cross beam respectively. The first through hole and the second through hole are communicated with the cavity to form an assembly hole; the plugging cover is located in the assembly hole and comprises an axial sealing ring, a first annular sealing surface and a second annular sealing surface, the first annular sealing surface is in sealed connection with the first side plate, and the second annular sealing surface is in sealed connection with the second side plate; according to the utility model, impurities such as aluminum skimmings and the like can be prevented from entering the cavity through the assembly hole, or the impurities such as the aluminum skimmings and the like entering the cavity can be prevented from entering the battery pack through the assembly hole, so that the operation stability of the battery pack is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to an installation device for a battery pack connector and a battery pack. Background Art

[0002] With the technological development of the new energy industry, the design of the battery pack is constantly iterating. Usually, the lower shell of the battery pack is composed of a bottom plate and a frame. The frame is composed of multiple crossbeams enclosed and welded; usually, assembly holes are set on the crossbeams for installing connectors; because there is a chamber inside the crossbeam, the assembly hole will be connected to the chamber; when the bottom plate and frame are machined and drilled during the production process of the battery pack, impurities such as aluminum chips generated during the machining and drilling process will enter the chamber through the assembly hole. During the driving of the vehicle, the aluminum chips and other impurities in the chamber will enter the battery pack, affecting the operation of the battery pack. Utility Model Content

[0003] In view of this, the utility model provides an installation device for a battery pack connector and a battery pack to solve the problem that impurities such as aluminum chips generated during machining and drilling can enter the chamber through the assembly hole, and impurities such as aluminum chips in the chamber can enter the battery pack during vehicle driving, affecting the operation of the battery pack.

[0004] In the first aspect, the utility model provides an installation device for a battery pack connector, comprising a box crossbeam and a sealing cover; a chamber is provided inside the box crossbeam, and the chamber extends along the length direction of the box crossbeam; the box crossbeam also includes a first through hole and a second through hole, the first through hole and the second through hole are arranged opposite to each other, and are respectively located on a first side plate and a second side plate arranged opposite to each other along the width direction of the box crossbeam; the first through hole and the second through hole are connected to the chamber to form an assembly hole; the sealing cover is located in the assembly hole, and comprises an axial sealing ring, a first annular sealing surface and a second annular sealing surface, the first annular sealing surface is sealed to the first side plate, and the second annular sealing surface is sealed to the second side plate; the inner ring of the axial sealing ring forms a connector installation hole.

[0005] Beneficial effect: by arranging an axial sealing ring, a first annular sealing surface and a second annular sealing surface on the blocking cover, and the first annular sealing surface and the second annular sealing surface are respectively sealed and connected to the first side plate and the second side plate, that is, the blocking cover and the chamber form a sealing structure, when the blocking cover is installed before machining, hole drilling and other processes, it can be prevented that impurities such as aluminum chips enter the chamber through the assembly hole; when the blocking cover is installed after machining, hole drilling and other processes, it can be prevented that impurities such as aluminum chips enter the chamber through the assembly hole, thereby ensuring the stability of the operation of the battery pack; and the inner ring of the axial sealing ring forms a connector mounting hole, which is convenient for the installation of the connector.

[0006] In an optional embodiment, the sealing cover also includes a limiting structure, which is arranged on the outer periphery of the axial sealing ring and is sealed and connected to the side of the first side plate close to the chamber, and the first side plate is clamped between the first annular sealing surface and the limiting structure.

[0007] Beneficial effects: By arranging the limiting structure on the outer periphery of the axial sealing ring and sealingly connecting it to the side of the first side plate close to the chamber, it is convenient to clamp the first side plate between the first annular sealing surface and the limiting structure, which helps to achieve a fixed connection between the sealing cover and the box cross beam, enhances the stability of the structure, and reduces loosening or falling off caused by vibration or external force; reduces the wear between the sealing cover and the box cross beam, and extends the service life of the sealing cover and the box cross beam.

[0008] In an optional implementation, the limiting structure is a limiting convex ring.

[0009] In an optional embodiment, the limiting structure is a plurality of protrusions arranged in sequence and at intervals.

[0010] Beneficial effect: By setting the limiting structure as a limiting convex ring or a plurality of protrusions arranged at intervals in sequence, when the first through hole is a polygonal hole or a circular hole, it can always be ensured that the limiting convex ring or the plurality of protrusions arranged at intervals in sequence can abut against the side of the first side plate close to the chamber, thereby improving the applicability of the limiting structure; and the limiting convex ring and the plurality of protrusions arranged at intervals in sequence can maintain stable performance during long-term use and are not prone to failure or damage.

[0011] In an optional embodiment, a first adhesive layer is provided on one side of the first annular sealing surface connected to the first side plate, and the first annular sealing surface is adhesively connected to the first side plate via the first adhesive layer.

[0012] In an optional embodiment, a second adhesive layer is provided on one side of the second annular sealing surface connected to the second side plate, and the second annular sealing surface is adhesively connected to the second side plate via the second adhesive layer.

[0013] By setting the first adhesive layer and the second adhesive layer, the fixed connection between the first annular sealing surface and the first side plate and the fixed connection between the second annular sealing surface and the second side plate can be achieved, so that the first annular sealing surface and the first side plate are firmly connected together, and the second annular sealing surface and the second side plate are firmly connected together to form an integrated structure, improve the stability of the connection, ensure the sealing effect between the first annular sealing surface and the first side plate, and the sealing effect between the second annular sealing surface and the second side plate; and can reduce the dependence on materials such as fasteners and welding equipment, thereby reducing production costs; achieve lightweight design and reduce structural mass. At the same time, since the setting of the first adhesive layer and the second adhesive layer is relatively simple, high processing accuracy and complex post-processing processes are not required, which helps to shorten the production cycle, improve production efficiency, and further reduce costs. Compared with traditional connection methods such as screws and rivets, adhesives will not drill or cut on the surface, so surface damage can be avoided, and the surface beauty of the first annular sealing surface and the first side plate, as well as the surface beauty of the second annular sealing surface and the second side plate can be maintained.

[0014] In an optional implementation, the first adhesive layer is UV glue.

[0015] In an optional implementation, the second adhesive layer is UV glue.

[0016] Beneficial effect: the first adhesive layer and / or the second adhesive layer is UV glue (photosensitive glue), UV glue is applied on the first annular sealing surface to form the first adhesive layer, UV glue is applied on the second annular sealing surface to form the second adhesive layer, and then the side of the first annular sealing surface coated with the first adhesive layer is bonded to the first side panel, and the side of the second annular sealing surface coated with the second adhesive layer is bonded to the second side panel, and then the glue-coated area is irradiated with an ultraviolet lamp to accelerate the curing of the glue.

[0017] In an optional embodiment, a size of the first through hole is larger than a size of the second through hole, and an outer diameter of the axial sealing ring gradually decreases from a side close to the first through hole to a side close to the second through hole.

[0018] In a second aspect, the utility model further provides a battery pack, including the installation device of the battery pack connector mentioned above.

[0019] Because the battery pack includes a mounting device for the battery pack connector, which has the same effect as the mounting device for the battery pack connector, it will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a front view of a mounting device for a battery pack connector according to an embodiment of the utility model;

[0022] Figure 2 A front view of a mounting device for a battery pack connector according to an embodiment of the utility model;

[0023] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the blocking cover of an embodiment of the utility model;

[0025] Figure 5 This is a schematic structural diagram of a box crossbeam according to an embodiment of the utility model;

[0026] Figure 6 It is a front view of the box crossbeam of an embodiment of the utility model;

[0027] Figure 7 for Figure 6 Cross-sectional view of BB.

[0028] Description of reference numerals:

[0029] 1. Box crossbeam; 11. Chamber; 12. First through hole; 13. Second through hole; 14. First side plate; 15. Second side plate; 2. Sealing cover; 21. Axial sealing ring; 22. Connector mounting hole; 23. First annular sealing surface; 24. Limiting structure; 25. Second annular sealing surface. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] Combine the following Figures 1 to 7 , describing an embodiment of the utility model.

[0032] According to an embodiment of the utility model, on the one hand, a battery pack connector installation device is provided, including a box crossbeam 1 and a blocking cover 2; a chamber 11 is provided inside the box crossbeam 1, and the chamber 11 extends along the length direction of the box crossbeam 1; the box crossbeam 1 also includes a first through hole 12 and a second through hole 13, the first through hole 12 and the second through hole 13 are arranged opposite to each other, and are respectively located on a first side plate 14 and a second side plate 15 arranged opposite to each other along the width direction of the box crossbeam 1; the first through hole 12 and the second through hole 13 are connected to the chamber 11 to form an assembly hole; the blocking cover 2 is located in the assembly hole, and includes an axial sealing ring 21, a first annular sealing surface 23 and a second annular sealing surface 25, the first annular sealing surface 23 is sealed to the first side plate 14, and the second annular sealing surface 25 is sealed to the second side plate 15; the inner ring of the axial sealing ring 21 forms a connector installation hole 22.

[0033] By arranging an axial sealing ring 21, a first annular sealing surface 23 and a second annular sealing surface 25 on the blocking cover 2, and the first annular sealing surface 23 and the second annular sealing surface 25 are respectively sealed and connected to the first side plate 14 and the second side plate 15, that is, the blocking cover 2 and the chamber 11 form a sealing structure, when the blocking cover 2 is installed before machining, hole drilling and other processes, impurities such as aluminum chips can be prevented from entering the chamber 11 through the assembly hole; when the blocking cover 2 is installed after machining, hole drilling and other processes, impurities such as aluminum chips that enter the chamber 11 can be prevented from entering the battery pack through the assembly hole, thereby ensuring the stability of the operation of the battery pack; and the inner ring of the axial sealing ring 21 forms a connector mounting hole 22, which is convenient for the installation of the connector.

[0034] In a specific embodiment, the size of the first through hole 12 is larger than that of the second through hole 13 , and the axial sealing ring 21 is a columnar structure; preferably, the outer diameter of the axial sealing ring 21 gradually decreases from the side close to the first through hole 12 to the side close to the second through hole 13 .

[0035] Specifically, the first through hole 12 and the second through hole 13 can be square holes, circular holes or any polygonal holes, which can be selected according to the specific form of the connector; preferably, the first through hole 12 and the second through hole 13 are square holes.

[0036] In one embodiment, the blocking cover 2 also includes a limiting structure 24, which is arranged on the outer periphery of the axial sealing ring 21 and is sealed and connected to the side of the first side plate 14 close to the chamber 11, and the first side plate 14 is clamped between the first annular sealing surface 23 and the limiting structure 24.

[0037] By setting the limiting structure 24 on the outer periphery of the axial sealing ring 21 and sealingly connecting it with the side of the first side plate 14 close to the chamber 11, it is convenient to clamp the first side plate 14 between the first annular sealing surface 23 and the limiting structure 24, which helps to achieve a fixed connection between the sealing cover 2 and the box cross beam 1, enhances the stability of the structure, and reduces loosening or falling off caused by vibration or external force; reduces the wear between the sealing cover 2 and the box cross beam 1, and extends the service life of the sealing cover 2 and the box cross beam 1.

[0038] Specifically, the outer circumference of the first annular sealing surface 23 is larger than the diameter of the maximum inscribed circle of the first through hole 12 , so that the sealing effect between the first annular sealing surface 23 and the first side plate 14 can be ensured.

[0039] Specifically, the outer diameter of the axial sealing ring 21 is smaller than or equal to the diameter of the smallest inscribed circle of the first through hole 12 , which can ensure that the blocking cover 2 can be smoothly installed in the assembly hole.

[0040] In one embodiment, the limiting structure 24 is a limiting convex ring, which is disposed around the outer circumference of the axial sealing ring 21 and abuts against a side of the first side plate 14 close to the chamber 11 .

[0041] By setting the limiting structure 24 as a limiting convex ring, when the first through hole 12 is a polygonal hole or a circular hole, it can always be ensured that the limiting convex ring can abut against the side of the first side plate 14 close to the chamber 11, thereby improving the applicability of the limiting structure 24; and the limiting convex ring can maintain stable performance during long-term use and is not prone to failure or damage.

[0042] In an alternative embodiment, the limiting structure 24 may also include a plurality of protrusions, and the plurality of protrusions are sequentially arranged at intervals along the outer circumference of the axial sealing ring 21 .

[0043] In one embodiment, a first adhesive layer is provided on one side of the first annular sealing surface 23 connected to the first side plate 14 , and the first annular sealing surface 23 is adhesively connected to the first side plate 14 via the first adhesive layer.

[0044] In one embodiment, a second adhesive layer is provided on one side of the second annular sealing surface 25 connected to the second side plate 15 , and the second annular sealing surface 25 is adhesively connected to the second side plate 15 via the second adhesive layer.

[0045] By setting the first adhesive layer and the second adhesive layer, the first annular sealing surface 23 and the first side plate 14 can be fixedly connected, and the second annular sealing surface 25 and the second side plate 15 can be fixedly connected, so that the first annular sealing surface 23 and the first side plate 14 are firmly connected together, and the second annular sealing surface 25 and the second side plate 15 are firmly connected together to form an integrated structure, improve the stability of the connection, ensure the sealing effect between the first annular sealing surface 23 and the first side plate 14, and the sealing effect between the second annular sealing surface 25 and the second side plate 15; and can reduce the dependence on fasteners, welding equipment and other materials, thereby reducing production costs; achieve lightweight design and reduce structural mass. At the same time, since the setting of the first adhesive layer and the second adhesive layer is relatively simple, high processing accuracy and complex post-processing processes are not required, which helps to shorten the production cycle, improve production efficiency, and further reduce costs. Compared with traditional connection methods such as screws and rivets, adhesives will not drill or cut on the surface, thereby avoiding surface damage and maintaining the surface beauty of the first annular sealing surface 23 and the first side plate 14, as well as the surface beauty of the second annular sealing surface 25 and the second side plate 15.

[0046] Specifically, the first adhesive layer and / or the second adhesive layer is UV glue (photosensitive glue). UV glue is applied on the first annular sealing surface 23 to form the first adhesive layer, and UV glue is applied on the second annular sealing surface 25 to form the second adhesive layer. Then, the side of the first annular sealing surface 23 coated with the first adhesive layer is bonded to the first side panel 14, and the side of the second annular sealing surface 25 coated with the second adhesive layer is bonded to the second side panel 15. The glue-coated area is then irradiated with an ultraviolet lamp to accelerate the curing of the glue.

[0047] In an alternative embodiment, the first adhesive layer and / or the second adhesive layer may also be sealant, structural adhesive, etc.

[0048] In an alternative embodiment, the first annular sealing surface 23 may also be fixedly connected to the first side plate 14 by fasteners such as screws, and the second annular sealing surface 25 may also be fixedly connected to the second side plate 15 by fasteners such as screws.

[0049] According to an embodiment of the present utility model, on the other hand, a battery pack is provided, comprising the above-mentioned installation device for the battery pack connector.

[0050] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A battery pack connector installation device, characterized in that: include: A box crossbeam (1) is provided with a chamber (11) inside, wherein the chamber (11) extends along the length direction of the box crossbeam (1); the box crossbeam (1) further comprises a first through hole (12) and a second through hole (13), wherein the first through hole (12) and the second through hole (13) are arranged opposite to each other and are respectively located on a first side plate (14) and a second side plate (15) arranged opposite to each other along the width direction of the box crossbeam (1); the first through hole (12) and the second through hole (13) are connected to the chamber (11) to form an assembly hole; A blocking cover (2) is located in the assembly hole and comprises an axial sealing ring (21), a first annular sealing surface (23) and a second annular sealing surface (25); the first annular sealing surface (23) is sealedly connected to the first side plate (14), and the second annular sealing surface (25) is sealedly connected to the second side plate (15); the inner ring of the axial sealing ring (21) forms a connector mounting hole (22).

2. The installation device for the battery pack connector according to claim 1, characterized in that: The blocking cover (2) further comprises a limiting structure (24), wherein the limiting structure (24) is arranged on the outer periphery of the axial sealing ring (21) and is sealingly connected to a side of the first side plate (14) close to the chamber (11), and the first side plate (14) is clamped between the first annular sealing surface (23) and the limiting structure (24).

3. The installation device for the battery pack connector according to claim 2, characterized in that: The limiting structure (24) is a limiting convex ring.

4. The installation device for the battery pack connector according to claim 2, characterized in that: The limiting structure (24) is a plurality of protrusions arranged in sequence and at intervals.

5. The installation device for a battery pack connector according to any one of claims 1 to 4, characterized in that: A first adhesive layer is provided on one side of the first annular sealing surface (23) connected to the first side plate (14), and the first annular sealing surface (23) is bonded to the first side plate (14) via the first adhesive layer.

6. The installation device for the battery pack connector according to claim 5, characterized in that: The first adhesive layer is UV glue.

7. The installation device for a battery pack connector according to any one of claims 1 to 4 or 6, characterized in that: A second adhesive layer is provided on the side where the second annular sealing surface (25) is connected to the second side plate (15), and the second annular sealing surface (25) is adhesively connected to the second side plate (15) via the second adhesive layer.

8. The installation device for the battery pack connector according to claim 7, characterized in that: The second adhesive layer is UV glue.

9. The installation device for a battery pack connector according to any one of claims 1 to 4 or 6 or 8, characterized in that: The size of the first through hole (12) is greater than the size of the second through hole (13), and the outer diameter of the axial sealing ring (21) gradually decreases from a side close to the first through hole (12) to a side close to the second through hole (13).

10. A battery pack, characterized in that: A mounting device comprising a battery pack connector as claimed in any one of claims 1 to 9.

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