CN215989078U - Battery pack shell structure locked by adopting hasp type - Google Patents

Abstract

The utility model discloses a battery pack shell structure locked by adopting a hasp type, which relates to the technical field of battery packs and comprises an upper shell, a lower shell and hasp structures, wherein the upper end of the lower shell is detachably provided with the upper shell, the outer edge of the upper shell is provided with a plurality of hasp structures, and the upper shell is connected with the lower shell through the plurality of hasp structures; each hasp structure all includes: the base is arranged at the outer edge of the upper shell; one end of the handle is rotatably connected with the base; the other end of the handle is provided with a buckle, the outer edge of the lower shell is provided with a clamping groove structure, and the buckle can be clamped in the clamping groove structure. According to the battery pack assembly structure, the upper shell and the lower shell are not required to be provided with the through holes and the threaded holes, so that the precision requirement is reduced, the processing difficulty is reduced, the battery pack assembly is convenient and labor-saving, the assembly efficiency is improved, the rigidity of the flange surface of the upper shell is improved due to the adoption of the lock catch structure for connection, and the connection points are reduced.

Description

Battery pack shell structure locked by adopting hasp type

Technical Field

The utility model relates to the technical field of battery packs, in particular to a battery pack shell structure locked by a buckle.

Background

In order to achieve a higher protection level, an upper shell and a lower shell are connected and locked by a power battery pack equipped for an electric automobile. At present often adopt bolted connection mode, set up the screw hole (common mode has rivet nut, steel wire swivel nut, extrusion screw thread) promptly on the tie point of casing down, the tie point that corresponds the position at last casing sets up the through-hole, and the casing needs dozens of tie points usually under, on the battery package, passes casing through-hole screw in casing screw hole under the bolt during the assembly and surely twists the design moment of torsion to reach the purpose with upper and lower casing coupling and locking.

However, this fixing method has the following disadvantages:

(1) the assembly workload is large, and in order to achieve a higher protection level, the distance between adjacent connecting points is generally required to be not too large, so that a large number of connecting points are required;

(2) the assembly efficiency is low and the requirements on tools are high. The fixed torque is long in time consumption during bolt connection, and a special fixed torque tool is needed;

(3) the requirement on the machining precision of the upper shell and the lower shell is high. The bolt connection requires that the through holes at the connecting points correspond to the threaded holes one by one, so that the requirement on the machining precision is high, and the machining difficulty and the defective rate are correspondingly increased;

(4) rework at the connection points is difficult. Quality problems occur at the connecting points, such as the sliding teeth of the steel wire thread sleeve, the loosening of the pull rivet nut, misalignment of hole positions and the like, a plurality of processes (welding, drilling, riveting, grinding and the like) are designed for repairing, special tools are needed, and time and labor are wasted;

(5) the workload of disassembling and assembling the battery pack is large. When the battery pack is disassembled and assembled in a test or upgrading way, a large number of bolts need to be disassembled and assembled, which is time-consuming and labor-consuming, and parts (bolts, steel wire thread sleeves and the like) are easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery pack shell structure adopting snap-on locking, which is used for solving the technical problem.

The technical scheme adopted by the utility model is as follows:

a battery pack shell structure locked by a hasp type comprises an upper shell, a lower shell and hasp structures, wherein the upper shell is detachably arranged at the upper end of the lower shell, a plurality of hasp structures are arranged at the outer edge of the upper shell, and the upper shell is connected with the lower shell through the hasp structures;

each hasp structure all includes:

the base is arranged at the outer edge of the upper shell;

the handle, one end of the said handle is connected with said base rotatably;

the other end of the handle is provided with the buckle, the outer edge of the lower shell is provided with a clamping groove structure, and the buckle can be clamped in the clamping groove structure.

Preferably, the sealing device further comprises a sealing gasket, wherein a sealing groove is formed in the upper end face of the lower shell, and the sealing gasket is arranged in the sealing groove.

Further preferably, the thickness of the gasket is larger than the depth of the sealing groove.

Preferably, the base is welded to an outer edge of the upper case.

Preferably, the handle further comprises a retaining ring, the retaining ring is arranged at one end of the base, a square hole is formed in one end of the handle, and the retaining ring penetrates through the square hole and is connected with the handle.

Preferably, the clamping groove structure comprises a first clamping groove and a second clamping groove, the first clamping groove is formed in the outer edge of the lower shell, the second clamping groove is formed in the side wall of the lower shell, and the second clamping groove is located on the upper side of the first clamping groove and communicated with the first clamping groove.

The technical scheme has the following advantages or beneficial effects:

(1) in the utility model, the upper shell and the lower shell do not need to be provided with through holes and threaded holes, so that the precision requirement is reduced, and the processing difficulty is favorably reduced;

(2) in the utility model, the structure of the lock catch structure is simpler, so that the battery pack is convenient and labor-saving to assemble, and the assembly efficiency is improved;

(3) in the utility model, the lock catch structure is adopted for connection, so that the rigidity of the flange surface of the upper shell is improved, the number of connection points is reduced, the manual operation is convenient and quick, a special tool is not needed, and the assembly workload is reduced.

Drawings

Fig. 1 is a schematic structural view of a battery pack case structure employing snap-lock locking according to the present invention;

FIG. 2 is a schematic structural view of the latch structure of the present invention;

FIG. 3 is a schematic view of the configuration of the slot, seal groove and gasket of the present invention;

fig. 4 is an enlarged view at a in fig. 1.

In the figure: 1. an upper housing; 2. a lower housing; 3. a locking structure; 31. a base; 32. a handle; 33. buckling; 34. a retaining ring; 35. a square hole; 4. a gasket; 5. a sealing groove; 6. a first card slot; 7. and a second card slot.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural view of a battery pack case structure employing snap-lock locking according to the present invention;

FIG. 2 is a schematic structural view of the latch structure of the present invention; FIG. 3 is a schematic view of the configuration of the slot, seal groove and gasket of the present invention; fig. 4 is an enlarged view of a portion a in fig. 1, please refer to fig. 1 to 4, which illustrate a preferred embodiment, and show a battery pack housing structure using snap-on locking, which includes an upper housing 1, a lower housing 2 and a locking structure 3, wherein the upper housing 1 is detachably disposed at the upper end of the lower housing 2, a plurality of locking structures 3 are disposed at the outer edge of the upper housing 1, and the upper housing 1 is connected with the lower housing 2 through the plurality of locking structures 3. In this embodiment, as shown in fig. 1, go up and connect the locking through the mode that hasp structure 3 and draw-in groove structure mutually supported between casing 1 and the lower casing 2, need not to set up through-hole and screw hole, reduced the required precision, be favorable to reducing the processing degree of difficulty. And the structure of the lock catch structure 3 is simpler, so that the battery pack is convenient and labor-saving to assemble, and the assembly efficiency is improved.

Each latch structure 3 includes:

and a base 31, wherein the base 31 is arranged on the outer edge of the upper shell 1.

A handle 32, one end of the handle 32 being rotatably connected to the base 31.

The buckle 33, the other end of the handle 32 is provided with the buckle 33, the outer edge of the lower shell 2 is provided with a clamping groove structure, and the buckle 33 can be clamped in the clamping groove structure. In this embodiment, the base 31 and the upper housing 1 are detachably connected or integrally connected, and the end of the other end of the handle 32 has a certain bending radian, so as to facilitate operation. The buckle 33 is in a hook-shaped structure, and the shape of the slot structure is matched with that of the buckle 33, so that the buckle 33 is matched with the slot, and the upper shell 1 and the lower shell 2 are fixed. Adopt hasp structure 3 to fix last casing 1 and lower casing 2, be favorable to improving the rigidity of the 1 flange face of casing, be favorable to reducing the tie point, manual operation convenient and fast need not specialized tool, be favorable to reducing assembly work load. In this embodiment, the mode rigidity that adopts buckle 33 to connect is better, is favorable to reducing the tie point.

Further, as a preferred embodiment, still include sealed 4, the seal groove 5 has been seted up to the up end of lower casing 2, and sealed 4 locates in seal groove 5. In this embodiment, the compression amount of the sealing gasket 4 can be adjusted by adjusting the height of the base 31 relative to the flange surface of the lower case 2, so as to adjust the protection grade of the battery pack.

Further, as a preferred embodiment, the thickness of the gasket 4 is larger than the depth of the sealing groove 5. In this embodiment, as shown in fig. 3, the width of the sealing gasket 4 is matched with the width of the sealing groove 5, the sealing gasket 4 protrudes out of the sealing groove 5, and when the locking structure 3 is locked, the upper housing 1 and the lower housing 2 compress the sealing gasket 4 to a predetermined thickness, so as to achieve the sealing effect of the battery pack. In this embodiment, a flange surface is disposed on the outer edge of the upper housing 1, and an installation space of the locking structure 3 is disposed outside the flange surface. The inner side of the flange surface is in contact with the gasket 4, and the upper shell 1 and the gasket 4 are sealed.

Further, as a preferred embodiment, the base 31 is welded to the outer edge of the upper housing 1. In this embodiment, the base 31 and the upper case 1 are preferably connected by welding.

Further, as a preferred embodiment, a retaining ring 34 is further included, a retaining ring 34 is provided at one end of the base 31, a square hole 35 is provided at one end of the handle 32, and the retaining ring 34 passes through the square hole 35 and is connected with the handle 32. As shown in FIG. 2, the snap ring 34 is engaged with the square hole to achieve the rotatable connection between the handle 32 and the base 31.

Further, as a preferred embodiment, the card slot structure includes a first card slot 6 and a second card slot 7, the first card slot 6 is disposed at the outer edge of the lower casing 2, the second card slot 7 is disposed in the side wall of the lower casing 2, and the second card slot 7 is located at the upper side of the first card slot 6 and is communicated with the first card slot 6. In this embodiment, as shown in fig. 3, when in use, the end of the buckle 33 on the handle 32 passes through the first card slot 6 and then is buckled in the second card slot 7.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (6)

1. A battery pack shell structure locked by a hasp type is characterized by comprising an upper shell, a lower shell and hasp structures, wherein the upper shell is detachably arranged at the upper end of the lower shell, a plurality of hasp structures are arranged on the outer edge of the upper shell, and the upper shell is connected with the lower shell through the hasp structures;

each hasp structure all includes:

the base is arranged at the outer edge of the upper shell;

the handle, one end of the said handle is connected with said base rotatably;

the other end of the handle is provided with the buckle, the outer edge of the lower shell is provided with a clamping groove structure, and the buckle can be clamped in the clamping groove structure.

2. The snap-lock battery can casing structure of claim 1, further comprising a gasket, wherein a sealing groove is formed in the upper end surface of the lower case, and the gasket is disposed in the sealing groove.

3. The snap-lock battery can casing structure of claim 2, wherein the gasket has a thickness greater than the depth of the sealing groove.

4. The snap-lock battery can casing structure of claim 1, wherein the base is welded to the outer edge of the upper casing.

5. The battery can housing structure with snap-lock locking of claim 1, further comprising a snap ring, wherein the snap ring is provided at one end of the base, and a square hole is provided at one end of the handle, and the snap ring passes through the square hole and is connected to the handle.

6. The battery can housing structure with snap-on locking according to claim 1, wherein the slot structure comprises a first slot and a second slot, the first slot is opened at an outer edge of the lower case, the second slot is provided in a side wall of the lower case, and the second slot is located at an upper side of the first slot and is communicated with the first slot.

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