CN217114612U

CN217114612U - Lithium battery box equipotential structure, power battery and new energy vehicle

Info

Publication number: CN217114612U
Application number: CN202220644048.6U
Authority: CN
Inventors: 姚孟林; 李远华
Original assignee: Yiyang Changtian New Energy Technology Co ltd
Current assignee: Yiyang Changtian New Energy Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-08-02
Anticipated expiration: 2032-03-22

Abstract

The utility model relates to the field of electrical technology, in particular to an equipotential structure of a lithium battery box, a power battery and a new energy vehicle, wherein the equipotential structure of the lithium battery box comprises a lower box body and an upper cover which covers the lower box body, and the surfaces of the lower box body and the upper cover are subjected to electrophoresis treatment; one side welding of box has the battery box mounting panel down, the one end of battery box mounting panel adopts the FDS machine to pass through the riveting of FDS fastening screw and has the earth connection, the wiring board of earth connection adopts electrophoresis processing's no orifice plate. The utility model discloses an adopt the FDS machine to install the earth connection through FDS fastening screw on the battery box mounting panel, this kind of mode need not make prefabricated hole on the part surface, need not reserve the equipotential position simultaneously in part surface electrophoresis processing procedure, also need not remove the electrophoresis film in the position of equipotential moreover, greatly reduced manufacturing cost, also be favorable to the process control of production.

Description

Lithium battery box equipotential structure and power battery and new forms of energy vehicle

Technical Field

The utility model relates to the field of electrical technology, especially, relate to a lithium cell box equipotential structure and power battery and new forms of energy vehicle.

Background

The lithium battery box is an electrical device, and the static accumulation of the metal parts can cause the potential of the metal parts to rise in a certain time, so that the following risks exist:

1. the risk of electric shock when a human body is in contact with the electric shock absorber is avoided;

2. the lithium battery box is damaged due to the risk of lightning stroke;

based on the risks, the structural design of the non-conductive metal parts in the lithium battery box, the upper cover of the battery box and the equipotential of the box body is necessary.

In the existing battery box, an upper cover is in contact with a bolt, the bolt is in contact with a nut, and the nut is in contact with a flange surface of a lower box body, so that equipotential between the upper cover and the lower box body is realized; the lower box body is in direct contact with the grounding wire through the bolt tightening of the lower box body, and static electricity is led out through the grounding wire. Because the upper cover and the lower box body are made of carbon steel in the design of the lithium battery box, the surfaces of the upper cover and the lower box body are subjected to electrophoresis treatment before installation in order to prevent the upper cover and the lower box body from being corroded. The current scheme is that equipotential conducting positions are reserved on flange surfaces of an upper cover and a lower box body or equipotential conducting positions on the flange surfaces of the upper cover and the lower box body break a paint film to manufacture equipotential conducting areas. The technical difficulty is increased, the product consistency is poor, and the manufacturing cost of parts is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem who exists among the prior art. Therefore, the utility model provides a lithium cell case equipotential structure and power battery and new forms of energy vehicle.

The utility model provides a technical scheme that its technical problem adopted is:

the equipotential structure of the lithium battery box comprises a lower box body and an upper cover covering the lower box body, wherein the surfaces of the lower box body and the upper cover are subjected to electrophoresis treatment; one side welding of box has the battery box mounting panel down, the one end of battery box mounting panel adopts the FDS machine to pass through the riveting of FDS fastening screw and has the earth connection, the wiring board of earth connection adopts electrophoresis processing's no orifice plate.

The utility model provides a lithium cell case equipotential structure's a preferred embodiment, upper cover and lower box all are equipped with the turn-ups, the upper cover lid fits down and rivets through FDS fastening screw by a plurality of FDS machines behind the box the turn-ups of upper cover and lower box.

The utility model provides a lithium cell box equipotential structure's a preferred embodiment, all be equipped with the equidistant riveting arch that sets up relatively and the protrusion turn-ups outside on the turn-ups of upper cover and lower box, upper cover and lower box are riveted through FDS fastening screw in riveting protruding department.

The utility model provides a lithium cell case equipotential structure's a preferred embodiment, the battery box mounting panel is "L" type, the side weld in lower box side, the bottom surface is equipped with a plurality of mounting holes.

The utility model provides a lithium cell case equipotential structure's a preferred embodiment, the bottom surface both ends shaping of battery box mounting panel has the riveting board that is higher than its bottom surface and is used for riveting the wiring board.

The power battery comprises a battery box, and the battery box adopts the equipotential structure of the lithium battery box in any one of the embodiments.

The new energy vehicle comprises an energy storage system, and a battery box of the energy storage system adopts the equipotential structure of the lithium battery box in any one of the embodiments.

Compared with the prior art, the utility model provides a lithium cell box equipotential structure and power battery and new forms of energy vehicle's beneficial effect is: the utility model discloses an adopt the FDS machine to install the earth connection through FDS fastening screw on the battery box mounting panel, this kind of mode need not make prefabricated hole on the part surface, need not reserve the equipotential position simultaneously in part surface electrophoresis processing procedure, also need not remove the electrophoresis film in the position of equipotential moreover, greatly reduced manufacturing cost, also be favorable to the process control of production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is an assembly schematic diagram of an equipotential structure of a lithium battery box provided by the present invention;

FIG. 2 is an enlarged partial view of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is an exploded view of an equipotential structure of a lithium battery box provided by the present invention;

fig. 5 is a rivet joint structure view of the FDS fastening screw provided by the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.

Example one

The embodiment provides a lithium battery box equipotential structure, as shown in fig. 1 and fig. 3, including box 10 and the upper cover 20 that covers the box down, the upper cover passes through the screw fastening with the box down, just the equal electrophoresis in surface of box 10 and upper cover 20 is handled down, makes the surface of box and upper cover form the electrophoresis film down, protects upper cover and lower box, improves the corrosion resistance of lithium battery box.

For the equipotential structure of the lithium battery box, the following method is adopted in the embodiment:

lower box 10's one side welding has battery box mounting panel 30, and is specific, this embodiment battery box mounting panel 30 is "L" type, and the side weld in box 10 side down, the bottom surface is equipped with a plurality of mounting holes 301, and the battery box mounting panel is used for the installation of lithium cell case. In the embodiment, an equipotential structure is arranged on the battery box mounting plate, and preferably, in the embodiment, an FDS machine is used for riveting a grounding wire 50 on one end of the battery box mounting plate 30 through an FDS fastening screw 40, and a wiring board 502 of the grounding wire 50 is an electrophoretic non-porous plate, as shown in fig. 4. In the embodiment, the FDS machine is adopted to install the grounding wire through the FDS fastening screw, the FDS machine rotates the FDS fastening screw to enable the wiring board of the grounding wire and the battery box mounting plate to be subjected to hot melting deformation, the thickness sections of the wiring board and the battery box mounting plate are tightly matched with the thread surface of the FDS fastening screw, as shown in the attached drawing 5, the mounting plate and the grounding wire are conducted in the same potential, the mounting plate and the lower box body are welded, and the lower box body and the grounding wire are also conducted in the same potential. In the embodiment, the grounding wire is installed in the manner, the prefabricated hole is not required to be manufactured on the surface of the part, the equipotential position is not required to be reserved in the electrophoresis treatment process of the surface of the part, and the electrophoretic paint film is not required to be removed at the equipotential position, so that the production cost is greatly reduced, and the production process control is facilitated.

Preferably, as shown in fig. 1, 3 and 4, the riveting plate 302 for riveting the wiring board 502 is formed at both ends of the bottom surface of the battery box mounting plate 30, which is higher than the bottom surface thereof, and this design does not affect the flatness of the bottom surface of the battery box mounting plate even if it is deformed during riveting.

Example two

On the basis of the first embodiment, as shown in fig. 1, 2 and 4, the upper cover 20 and the lower box 10 of the present embodiment are both provided with flanges, and after the upper cover 20 is covered on the lower box 10, the flanges of the upper cover 20 and the lower box 10 are riveted by a plurality of FDS machines through FDS fastening screws 40. In the embodiment, the FDS machine is adopted to rivet the lower box body and the upper cover through the FDS fastening screws, the FDS machine rotates the FDS fastening screws to enable the flanging of the lower box body and the flanging of the upper cover to be subjected to hot melting deformation, the thickness sections of the flanging and the flanging of the upper cover are tightly matched with the thread surfaces of the FDS fastening screws, and as shown in the attached drawing 5, the upper cover and the lower box body are conducted in the same electric potential. In the embodiment, the lower box body and the upper cover are installed in the mode, prefabricated holes do not need to be manufactured on the surface of the part, an equipotential position does not need to be reserved in the electrophoresis treatment process of the surface of the part, an electrophoresis paint film does not need to be removed at the equipotential position, the production cost is greatly reduced, and the production process control is facilitated.

Preferably, riveting protrusions G which are oppositely arranged at equal intervals and protrude outside the flanging are arranged on the flanging of the upper cover 20 and the lower box 10 of the present embodiment, and the upper cover 20 and the lower box 10 are riveted at the riveting protrusions G through FDS fastening screws 40.

EXAMPLE III

The embodiment provides a power battery, which comprises a battery box, wherein the battery box adopts the equipotential structure of a lithium battery box in the first embodiment or the second embodiment.

Example four

The embodiment provides a new energy vehicle, which comprises an energy storage system, wherein a battery box of the energy storage system adopts the equipotential structure of a lithium battery box in the first embodiment or the second embodiment.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a lithium battery box equipotential structure, includes box and the lid under the box fits the upper cover of box, the equal electrophoresis in surface of box and upper cover is handled its characterized in that down:

one side welding of box has the battery box mounting panel down, the one end of battery box mounting panel adopts the FDS machine to pass through the riveting of FDS fastening screw and has the earth connection, the wiring board of earth connection adopts electrophoresis processing's no orifice plate.

2. The lithium battery box equipotential structure of claim 1, wherein: the upper cover and the lower box body are both provided with flanges, and the flanges of the upper cover and the lower box body are riveted by a plurality of FDS machines through FDS fastening screws after the upper cover covers the lower box body.

3. The lithium battery box equipotential structure of claim 2, wherein: the flanging of the upper cover and the lower box body are respectively provided with riveting bulges which are oppositely arranged at equal intervals and protrude out of the outer side of the flanging, and the upper cover and the lower box body are riveted at the riveting bulges through FDS fastening screws.

4. The lithium battery box equipotential structure of claim 1, wherein: the battery box mounting panel is "L" type, and the side weld in lower box side, the bottom surface is equipped with a plurality of mounting holes.

5. The lithium battery box equipotential structure of claim 4, wherein: and riveting plates which are higher than the bottom surface of the battery box mounting plate and used for riveting a wiring board are formed at two ends of the bottom surface of the battery box mounting plate.

6. A power battery, characterized by: the battery box comprises a battery box, wherein the battery box adopts the equipotential structure of the lithium battery box in any one of claims 1-5.

7. A new energy vehicle, characterized in that: the energy storage system comprises an energy storage system, and a battery box of the energy storage system adopts the lithium battery box equipotential structure of any one of claims 1-5.