CN211550228U

CN211550228U - Vehicle and battery package subassembly, floating nut subassembly thereof

Info

Publication number: CN211550228U
Application number: CN201922250735.0U
Authority: CN
Inventors: 袁春萍; 李楠; 马永跃; 林海岩
Original assignee: NIO Co Ltd
Current assignee: NIO Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-22
Anticipated expiration: 2029-12-16

Abstract

The utility model relates to a vehicle technical field aims at solving the easy problem that leads to the nut inefficacy of impurity invasion of current floating nut subassembly, provides a vehicle and battery package subassembly, floating nut subassembly for this, and floating nut subassembly includes: a nut including a body and a limit plate connected to a lower end of the body; the limiting dust cover is formed with a step-shaped cavity, and the step-shaped cavity comprises a first cavity used for containing the limiting plate and a second cavity used for containing the body. The utility model provides a floating nut assembly is formed with the spacing dust cover of stairstepping cavity through setting up, on the basis of realizing the nut function of floating with the help of the stairstepping cavity, has further realized the dustproof of nut with the help of the stairstepping cavity, makes its invasion of impurity such as mud, grit that can avoid the environment in the use to guarantee floating nut's normal use, can also prolong its life because of having reduced wearing and tearing.

Description

Vehicle and battery package subassembly, floating nut subassembly thereof

Technical Field

The utility model relates to the technical field of vehicles, concretely relates to vehicle and battery package subassembly, floating nut subassembly thereof.

Background

The floating nut is a combined nut mainly applied to a thin plate or a metal plate, and is widely applied to the fields of automobiles, aviation and the like, for example, the aspects of battery pack installation of electric automobiles, body fastening and the like.

Referring to fig. 1 and 2, fig. 1 is an exploded view of a conventional floating nut assembly, and fig. 2 is an assembled view of the conventional floating nut assembly. Nut 2 among the present floating nut assembly includes body 21 and the limiting plate 20 of connection in the body 21 lower part, base 1 that plays limiting role to nut 2 includes basal portion 10 and the spacing portion 11 that upwards extends and bend and form from basal portion 10, the intermediate position of basal portion 10 is formed with the via hole that supplies the screw to pass, the intermediate position of spacing portion 11 is formed with the via hole that supplies nut body 21 to pass, spacing portion 11 is because of bending and forming the space that is used for holding limiting plate 20 between the basal portion 10, limiting plate 20 is restricted in this space, realize that the small range of nut floats to absorb the installation error in the installation.

As can be seen from fig. 1 and 2, the nut body 21 of the conventional floating nut assembly is basically exposed to the environment, and during the use process, the inside of the nut and the space of the base are easily invaded by mud, gravel and the like, so that the problems of abrasion of the threads, failure of the floating function of the nut and the like are caused, and further the installation stability of the parts is affected.

Accordingly, there is a need in the art for a new floating nut assembly that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, be the problem that the easy invasion of impurity leads to the nut to become invalid for solving current floating nut assembly, the utility model discloses an aspect provides a floating nut assembly, and this floating nut assembly includes: a nut including a body and a limit plate connected to a lower end of the body; the limiting dust cover is formed with a step-shaped cavity, and the step-shaped cavity comprises a first cavity used for containing the limiting plate and a second cavity used for containing the body.

In the above preferable technical solution of the floating nut assembly, the vertical dimensions of the limiting plate and the first cavity are set such that the top surface of the first cavity is higher than the upper surface of the limiting plate in an installed state, so that the nut can float up and down in the first cavity.

In a preferred embodiment of the floating nut assembly, the limiting plate and the first cavity have lateral dimensions such that, in an installed state, the outer peripheral wall of the limiting plate and the side wall surface of the first cavity are at least partially in abutment.

In a preferred embodiment of the floating nut assembly, the body and the second cavity have lateral dimensions such that a gap is formed between an outer circumferential surface of the body and a side wall surface of the second cavity in an installed state.

In a preferred technical solution of the above floating nut assembly, the limiting dust cover includes a base and a cover formed by being recessed upward from the base, the first cavity is formed in the base, and the second cavity is formed in the cover.

In a preferred embodiment of the above floating nut assembly, a reinforcing rib is further disposed at a connection portion between the cover portion and the base portion.

In the above preferred technical solution of the floating nut assembly, the limiting plate is a square limiting plate, and the first cavity is a square cavity matched with the square limiting plate.

In the preferable technical scheme of the floating nut assembly, the limiting dust cover is made of high-strength plastic.

The utility model provides a floating nut assembly is formed with the spacing dust cover of stairstepping cavity through setting up, on the basis of realizing the nut function of floating with the help of the stairstepping cavity, has further realized the dustproof of nut with the help of the stairstepping cavity, makes its invasion of impurity such as mud, grit that can avoid the environment in the use to guarantee floating nut's normal use, can also prolong its life because of having reduced wearing and tearing.

Further, the vertical size through with limiting plate and first cavity sets to make the top surface of first cavity be higher than the upper surface of limiting plate under the state of having installed, utilizes the top surface of first cavity to realize the last spacing of nut for the nut can realize certain limit's fluctuation in first cavity, thereby realizes the function of floating of nut, makes this nut subassembly can absorb the installation error in the assembling process, strengthens its suitability.

Further, through setting the lateral dimension of limiting plate and first cavity to make under the state of installing between the periphery wall of limiting plate and the side wall face of first cavity at least partial butt, can install like this, the side wall face that utilizes first cavity is spacing to the limiting plate in the nut, prevents that the nut from rotating to make the nut accomplish the installation smoothly.

Further, the transverse size of the body and the transverse size of the second cavity are set to enable a gap to be formed between the outer peripheral face of the body and the side wall face of the second cavity in the mounted state, the floating nut assembly can be conveniently mounted, friction between the nut and the limiting dust cover in the floating process in the limiting dust cover can be avoided, and accordingly abrasion of parts is reduced.

Further, through setting the limiting plate to square limiting plate, set first cavity to with the square chamber of square limiting plate shape adaptation, existing installation that does benefit to nut and spacing dust cover can increase the nut again and treat the area of contact of installing the part, make the atress more even to strengthen its installation stability, promote the connection performance of nut.

Furthermore, through adopting high strength plastics to make spacing dust cover, compare with the base of current panel beating material, both guaranteed the intensity of spacing dust cover, can also reduce the whole quality of subassembly.

The second aspect of the present invention also provides a battery pack assembly, which comprises a housing, and the floating nut assembly further comprises any one of the above technical solutions, wherein the floating nut assembly is connected to the housing.

The third aspect of the present invention also provides a vehicle, wherein the vehicle comprises the battery pack assembly according to the above technical solution. Preferably an electric vehicle mounted with a battery pack assembly.

It can be understood that, because the utility model provides a battery package subassembly and the vehicle that disposes this battery package subassembly have adopted the floating nut subassembly among the aforesaid technical scheme, consequently possess all technological effects of aforesaid floating nut subassembly. Because the invasion of impurity can be avoided, the possibility of function failure of the floating nut component can be greatly reduced, thereby ensuring the smooth disassembly and assembly of the battery pack and ensuring the smooth operation of the battery replacement process.

Drawings

The floating nut assembly of the present invention is described below with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of a prior art floating nut assembly;

FIG. 2 is an assembled schematic view of a prior art floating nut assembly;

fig. 3 is an exploded view of a floating nut assembly according to an embodiment of the present invention;

fig. 4 is an assembly view of a floating nut assembly according to an embodiment of the present invention, wherein a half-sectional view of the assembly view is shown;

fig. 5 is a schematic structural view of a limiting dust cover according to an embodiment of the present invention;

list of reference numerals:

1. a base; 10. a base; 11. a limiting part; 2. a nut; 20. a limiting plate; 21. a body; 3. a limiting dust cover; 30. a base; 300. a first cavity; 31. a cover portion; 310. a second cavity; 32. and (5) reinforcing ribs.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the following embodiments are explained in connection with an electric vehicle, the present invention is not limited thereto, and the present invention is also applicable to other types of vehicles, such as hybrid vehicles, battery cars, etc., which require a battery pack to be mounted thereon, and such application objects may be changed without departing from the spirit and scope of the present invention.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, the mounting structure of the battery pack on the vehicle, which is well known to those skilled in the art, is not described in detail in order to highlight the gist of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "lateral", "vertical", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, 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 meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The easy problem that leads to the nut to become invalid of current nut component of floating based on the background art points out, the embodiment of the utility model provides a nut component floats, this nut component that floats includes nut and spacing dust cover. The nut includes the body and is connected to the limiting plate of body lower extreme, and the floating range of limiting plate main restriction nut plays the effect of increase and the area of contact who waits to install the part simultaneously. The limiting plate needs just can play the effect of restriction nut floating range with the help of spacing dust cover, and this spacing dust cover is formed with the stairstepping cavity, and this stairstepping cavity is including the first cavity that is used for the holding limiting plate and the second cavity that is used for the holding body, and the effect of restriction limiting plate is mainly played to first cavity, and first cavity combines the second cavity to play the effect of anti-impurity invasion jointly.

The floating nut assembly in an embodiment of the present invention is described below with reference to fig. 3-5. Fig. 3 is an exploded view of a floating nut assembly according to an embodiment of the present invention; fig. 4 is an assembly view of a floating nut assembly according to an embodiment of the present invention, wherein a half-sectional view of the assembly view is shown; fig. 5 is a schematic structural view of a limiting dust cover according to an embodiment of the present invention.

Referring to fig. 3 and 4, the nut 2 in the present embodiment includes a body 21 and a stopper plate 20 connected to a lower end of the body 21. Body 21 and limiting plate 20 can integrated into one piece, also can form through technologies such as welding, pressure riveting, and body 21 is hollow columnar structure, and limiting plate 20 is square limiting plate. Through holes are formed in the middle of the body 21 and the limiting plate 20 for bolts, studs and the like to pass through, and at least the body 21 is provided with threads. The nut 2 is made of metal material, such as alloy steel, and may be made of high-strength engineering plastic.

The limiting dust cover 3 in the embodiment is internally provided with a step-shaped cavity, and in a mounted state, the limiting dust cover 3 covers the nut 2, so that the nut 2 can be completely shielded. Referring to fig. 4 and 5, the position-limiting dust cover 3 includes a base 30 and a cover 31 formed to be upwardly recessed from the base 30, a first cavity 300 is formed in the base 30 for receiving the position-limiting plate 20, and a second cavity 310 is formed in the cover 31 for receiving the body 21. During the installation, earlier establish spacing dust cover 3 in nut 2 top to fasten spacing dust cover 3 with treating the installation component through other screw or bolt, then be connected bolt or screw and nut 2, limiting plate 20 after the connection with treat the surface butt of installation component, thereby construct the stairstepping cavity of relative sealed with the help of treating the installation component, arrange nut 2 in this cavity, play spacing and prevent the purpose of impurity invasion. The limiting dust cover 3 can be made of metal materials, and can also be made of high-strength plastics, such as composite materials of ABS (acrylonitrile butadiene styrene), nylon 66 plastic, POM (polyformaldehyde plastic resin) and the like, engineering plastics are adopted to replace metal materials to manufacture the limiting dust cover 3, and the weight of parts can be reduced on the basis of ensuring the strength of the parts.

Further, through setting up first cavity 300 to the square chamber that matches with square limiting plate, can make things convenient for the installation of spacing dust cover 3.

In order to realize the mountain floating function of the nut 2, the vertical sizes of the limiting plate 20 and the first cavity 300 are set such that the top surface of the first cavity 300 is higher than the upper surface of the limiting plate 20 in the mounted state, so that the nut 2 can only float within the vertical size of the first cavity 300, and the vertical size of the first cavity 300 can be set according to a desired floating range. To prevent the nut 2 from rotating during installation, the lateral dimensions of the retainer plate 20 and the first cavity 300 are such that in the installed state at least a partial abutment between the peripheral wall of the retainer plate 20 and the side wall surface of the first cavity 300, for example a partial line of the peripheral wall of the retainer plate 20 and the side wall surface of the first cavity 300 forms a line contact. To avoid unnecessary friction between the nut 2 and the dust cover 3 during floating, the body 21 and the second cavity 310 are laterally dimensioned such that there is a gap between the outer peripheral surface of the body 21 and the side wall surface of the second cavity 310 in the mounted state.

Further, in order to increase the strength of the dust cover 3, a plurality of ribs 32 are provided at the connection between the cover 31 and the base 30, and referring to fig. 3, the plurality of ribs 32 are circumferentially arranged on the outer periphery of the cover 31.

Based on foretell floating nut subassembly, the embodiment of the utility model provides a battery package subassembly and dispose the vehicle of this battery package subassembly still are provided. Use electric automobile as the example, electric automobile need dispose the battery package subassembly as power parts, and the battery package subassembly can be with the help of the utility model provides a floating nut unit mount is on the automobile body. The battery pack assembly comprises a battery or a battery pack, a shell covering the battery or the battery pack and the like, in the installation process, the shell of the battery pack assembly is fixedly connected to a sheet metal part of a vehicle body or other fixed structures by virtue of the floating nut assembly, and the installation error in the installation process is absorbed by virtue of the small-range floating of the floating nut assembly.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A floating nut assembly, characterized in that said floating nut assembly comprises:

a nut including a body and a limit plate connected to a lower end of the body;

the limiting dust cover is formed with a step-shaped cavity, and the step-shaped cavity comprises a first cavity used for containing the limiting plate and a second cavity used for containing the body.

2. The floating nut assembly of claim 1 wherein the vertical dimensions of the retainer plate and the first cavity are such that the top surface of the first cavity is higher than the upper surface of the retainer plate in the installed state to enable the nut to float up and down within the first cavity.

3. The floating nut assembly of claim 1 wherein the retainer plate and the first cavity are laterally dimensioned such that in an installed condition the peripheral wall of the retainer plate at least partially abuts the side wall surface of the first cavity.

4. The floating nut assembly of claim 1 wherein said body and said second cavity are laterally dimensioned such that there is a gap between an outer peripheral surface of said body and a side wall surface of said second cavity in an installed condition.

5. The floating nut assembly of claim 1 wherein said retaining dust cap includes a base and a cap formed recessed upwardly from said base, said first cavity being formed in said base and said second cavity being formed in said cap.

6. The floating nut assembly of claim 5 wherein the junction of the cover portion and the base portion is further provided with a stiffener.

7. The floating nut assembly of claim 1 wherein said retainer plate is a square retainer plate and said first cavity is a square cavity that mates with said square retainer plate.

8. The floating nut assembly of any one of claims 1 to 7 wherein the retaining dust cap is a high strength plastic.

9. A battery pack assembly comprising a housing, wherein the battery pack assembly further comprises the floating nut assembly of any one of claims 1-8, the floating nut assembly being attached to the housing.

10. A vehicle comprising the battery pack assembly of claim 9.