CN213108960U

CN213108960U - Portable power battery pack vibration damper for battery replacement electric vehicle

Info

Publication number: CN213108960U
Application number: CN202020670151.9U
Authority: CN
Inventors: 周道辉
Original assignee: Dialev New Energy Automobile Co ltd
Current assignee: Dialev New Energy Automobile Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-05-04
Anticipated expiration: 2030-04-27

Abstract

The utility model provides a portable battery-replacing electric vehicle power battery pack vibration damper, which comprises a mounting frame for arranging a battery pack on a vehicle body, wherein a plurality of mounting bulges which extend downwards are arranged at the bottom of the mounting frame, a plurality of mounting grooves are arranged on the vehicle body corresponding to the mounting bulges, the mounting bulges are arranged in the corresponding mounting grooves in a sliding manner, and elastic connecting units are arranged in the mounting grooves and can be used for buffering the vibration force transmitted from the vehicle body to the mounting frame; the elastic connection unit is provided with an inner elastic piece which is abutted between the installation bulge and the bottom of the installation groove and an outer elastic piece which is sleeved outside the inner elastic piece, and the elastic connection unit can be partially or completely used for forming elastic connection between the installation frame and the vehicle body. Portable electric motor car power battery package damping device that trades, have effectual, the little advantage of space occupation volume of damping, do benefit to the security that improves battery package in use.

Description

Portable power battery pack vibration damper for battery replacement electric vehicle

Technical Field

The utility model relates to a power battery technical field, in particular to quick detach power battery package and trade electric motor car.

Background

At present, the battery pack is usually relatively fixedly mounted on a vehicle body, and since the vehicle body vibration cannot be avoided in the running process of the battery vehicle, the vibration force is transmitted to the battery pack, so that the safety of the battery pack is not facilitated. In the prior art, a spring is often used as a main part for damping, but because the elasticity of the spring is greatly influenced by the length of the spring, a spring with a longer specification is required to obtain better elasticity. But as the length of the spring increases, its space occupation increases. Therefore, how to design a vibration damping device with small space occupation and good vibration damping effect is very important.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a portable electric motor car power battery package damping device that trades to improve the damping effect of battery package.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a portable electric motor car power battery package damping device that trades to install the battery package on the automobile body, include:

the battery pack is arranged on the mounting frame, a plurality of mounting bulges extending downwards are arranged on two sides of the bottom of the mounting frame, a plurality of mounting grooves are formed in the vehicle body corresponding to the mounting bulges, the mounting bulges are slidably arranged in the corresponding mounting grooves, elastic connecting units are arranged in the mounting grooves, and the elastic connecting units are arranged to buffer the vibration force transmitted from the vehicle body to the mounting frame;

the elastic connection unit is provided with an inner elastic piece which is abutted against the installation bulge and between the bottoms of the installation grooves and an outer elastic piece which is sleeved outside the inner elastic piece, and the elastic connection unit can be partially or completely connected with the installation frame and the vehicle body in an elastic manner.

Furthermore, a boss which is circumferentially arranged and abuts against the end part of the outer elastic part is arranged on the peripheral surface of each mounting protrusion, a mounting part is arranged on the end surface of each mounting protrusion, and the mounting part is inserted into the end part of the elastic connecting unit to form the connection between the mounting frame and the vehicle body.

Furthermore, the mounting part is an annular protrusion extending outwards along the axial direction of the mounting protrusion, and the annular protrusion is inserted between the inner elastic piece and the outer elastic piece, so that the inner elastic piece and the outer elastic piece are isolated.

Furthermore, clearance fit is formed between the outer elastic piece and the annular protrusion, and transition fit is formed between the inner elastic piece and the annular protrusion.

Furthermore, the outer side of the insertion end of the annular protrusion is chamfered.

Furthermore, a limiting groove is formed in the inner circumferential surface of the annular protrusion, and one end of the inner elastic piece can abut against the limiting groove.

Furthermore, a chamfer is arranged on the inner side of the insertion end of the limiting groove.

Further, the inner elastic piece and the outer elastic piece are both springs, and the length of the outer elastic piece is greater than that of the inner elastic piece.

Compared with the prior art, the utility model discloses following advantage has:

(1) portable battery electric motor car power battery package damping device that trades, through with interior elastic component with outer elastic component nested together, can effectively reduce elastic connection unit's space and occupy the volume to be favorable to its installation in the mounting groove. In addition, the elastic connection unit has a good vibration damping and buffering effect, so that the vibration force transmitted to the battery pack by the vehicle body is reduced, and the improvement of the safety of the battery pack in use can be facilitated.

(2) Through setting up the boss, be convenient for on the one hand to the installation arch in the slip spacing, on the other hand can also carry out the butt to outer elastic component, and when the vibrational force on the automobile body was transmitted to the mounting bracket, the boss can be directly transmitted vibrational force to outer elastic component, and outer elastic component compresses earlier and absorbs vibrational force. In addition, the installation part can improve the abutting effect of the inner elastic piece, the outer elastic piece and the installation bulge.

(3) The outer elastic part and the inner elastic part can be isolated through the annular bulge, so that the outer elastic part and the inner elastic part are not interfered with each other in the working process, and the working stability of the outer elastic part and the inner elastic part can be improved.

(4) The inner elastic piece and the annular bulge are in transition fit, so that abnormal sound caused by shaking of the inner elastic piece due to external influence can be prevented.

(5) The installation of the annular protrusion between the outer elastic part and the inner elastic part can be facilitated by arranging the chamfer at the outer side of the installation end of the annular protrusion.

(6) The structure of spacing groove can be convenient for constitute the butt effect of interior elastic component in annular arch.

(7) The inner side of the insertion end of the limiting groove is provided with the chamfer, so that the convenience of insertion of the annular protrusion between the outer elastic piece and the inner elastic piece can be improved, and the end part of the inner elastic piece can be guided to abut against the limiting groove.

(8) The length of the outer elastic part and the length of the inner elastic part are arranged, when vibration force is transmitted from the vehicle body to the mounting frame, the elastic connection unit can perform elastic buffering partially or completely, and therefore the vibration damping device has a good vibration damping effect.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a portable battery pack damping device for a battery replacement electric vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a mounting protrusion according to an embodiment of the present invention;

fig. 3 is an internal cross-sectional view of a mounting protrusion according to an embodiment of the present invention;

description of reference numerals:

1-battery pack, 5-mounting rack, 501-fixing block, 12-mounting protrusion, 1201-boss, 1202-annular protrusion and 1203-limiting groove;

13-outer elastic element, 14-inner elastic element.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", 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 in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a portable power battery pack vibration damper for an electric vehicle, which is used for installing a battery pack on a vehicle body. As shown in fig. 1, the battery pack vibration damping device includes a mounting bracket 5, and the battery pack 1 is mounted on the mounting bracket 5. Here, the mounting bracket 5 is in the shape of a frame in the shape of a "square" and the battery pack 1 is relatively fixed to the mounting bracket 5. The end parts of the two sides of the bottom of the mounting rack 5 are respectively provided with a fixing block 501 protruding outwards, and the bottom of the fixing block 501 is respectively provided with a mounting protrusion 12 extending downwards. Corresponding to each mounting protrusion 12, a base (not shown) is fixedly arranged on the vehicle body, four mounting grooves are arranged on the base, and the mounting protrusions 12 are slidably arranged in the corresponding mounting grooves. Wherein, the mounting protrusion 12 is columnar, and the mounting groove is matched with the mounting protrusion 12. An elastic connection unit is arranged in each mounting groove, and the elastic connection unit can buffer the vibration force transmitted to the mounting frame 5 by the vehicle body, so that the vibration damping effect is achieved.

It should be noted that the number of the fixing blocks 501 and the mounting protrusions 12 may be increased or decreased according to specific requirements. In addition, the battery pack 1 in this embodiment may adopt a battery pack in the prior art, and the connection relationship between the battery pack and the mounting bracket 5 may also refer to the prior art, which is not described herein again.

The elastic connection unit has an inner elastic member 14 abutting against the mounting protrusion 12 and the bottom of the mounting groove, and an outer elastic member 13 sleeved outside the inner elastic member 14, and the elastic connection unit can partially or completely form elastic connection between the mounting bracket 5 and the base, thereby absorbing vibration force and reducing the vibration force transmitted to the mounting bracket 5.

Based on the design concept of the elastic connection unit, an exemplary structure of the mounting protrusions 12 in the present embodiment is as shown in fig. 2 and 3, a boss 1201 provided around the circumference of each mounting protrusion 12 is provided on the outer circumferential surface thereof, and one end of the outer elastic member 13 abuts against one side of the boss 1201. Here, through the arrangement of the boss 1201, on one hand, the sliding mounting frame 12 can be limited, and the mounting protrusion 12 of the mounting frame 5 is prevented from being separated from the mounting groove; on the other hand, when the vibration force of the vehicle body is transmitted to the mount 5, the boss 1201 can directly transmit the vibration force to the outer elastic member 13, and the outer elastic member 13 is compressed to absorb the vibration force. In addition, in order to facilitate the installation of the outer elastic member 13 and the inner elastic member 14 on the mounting protrusions 12, in the present embodiment, an installation portion is provided on an end surface of each mounting protrusion 12, and the installation portion is inserted into an end portion of the elastic connection unit to constitute the connection of the mounting bracket 5 and the elastic connection unit.

As shown in fig. 2, the mounting portion in this embodiment is an annular protrusion 1202 outwardly extending in the axial direction of the mounting protrusion 12, and the isolation between the inner elastic member 14 and the outer elastic member 13 is constituted by the insertion of the annular protrusion 1202 between the inner elastic member 14 and the outer elastic member 13. Here, the annular protrusion 1202 can separate the outer elastic member 13 from the inner elastic member 14, so that the outer elastic member 13 and the inner elastic member 14 do not interfere with each other during operation, thereby improving the operation stability of the outer elastic member 13 and the inner elastic member 14.

Referring to fig. 3, the inner elastic member 14 and the outer elastic member 13 in this embodiment are both springs, and the length of the outer elastic member 13 is greater than that of the inner elastic member 14. So set up, can be when the vibrational force by the automobile body to the transmission on the mounting bracket 5, outer elastic component 13 can independently compress a distance earlier and carry out preliminary absorption to the vibrational force. When the inner elastic member 14 abuts against the inside of the annular protrusion 1202, the outer spring and the inner spring are compressed at the same time to absorb the vibration force again, so that the elastic connection unit is partially or entirely elastically buffered, and a good vibration damping effect can be achieved.

In addition, a stopper groove 1203 is provided on the inner peripheral surface of the annular projection 1202, and one end of the inner elastic member 14 can abut against the stopper groove 1203. Here, the structure of the limiting groove 1203 can facilitate improving the abutting effect of the inner elastic member 14 in the annular protrusion 1202, and further facilitate improving the stability of the inner elastic member 14 in use. It should be noted that, in this embodiment, besides the outer elastic element 13 being longer than the inner elastic element 14, the length of the inner elastic element 14 may also be longer than the length of the outer elastic element 13, and this structure can also achieve the above-mentioned functions.

As shown in fig. 3, the outer elastic member 13 of the present embodiment is in clearance fit with the annular protrusion 1202 to facilitate the insertion of the annular protrusion 1202 therebetween. In addition, the inner elastic member 14 is in transition fit with the annular protrusion 1202, so that abnormal noise caused by shaking of the inner elastic member 14 due to external influence can be prevented.

In addition, in this embodiment, the outer side of the insertion end of the annular protrusion 1202 is chamfered, and the inner side of the insertion end of the limiting groove 1203 is chamfered, so that the annular protrusion 1202 is inserted between the inner elastic member 14 and the outer elastic member 13.

According to the portable power battery pack damping device for the battery replacing electric vehicle, the inner elastic piece 14 and the outer elastic piece 13 are nested together, compared with the prior art, the space occupation amount of the elastic connection unit can be effectively reduced, and therefore the portable power battery pack damping device is beneficial to installation in the installation groove. In addition, this elastic connection unit compares in prior art single spring, has better damping buffering effect to reduce the vibrational force who transmits to mounting bracket 5, and can do benefit to the security that improves the battery package and use.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable electric motor car power battery package damping device that trades to install battery package (1) on the automobile body, its characterized in that includes:

the battery pack (1) is arranged on the mounting frame (5), a plurality of mounting protrusions (12) extending downwards are arranged on two sides of the bottom of the mounting frame (5), a plurality of mounting grooves are formed in the vehicle body corresponding to the mounting protrusions (12), the mounting protrusions (12) are slidably arranged in the corresponding mounting grooves, and elastic connecting units are arranged in the mounting grooves and are used for buffering the vibration force transmitted from the vehicle body to the mounting frame (5);

the elastic connection unit is provided with an inner elastic piece (14) which is abutted against the installation bulge (12) and is arranged between the bottoms of the installation grooves, and an outer elastic piece (13) which is sleeved outside the inner elastic piece (14), and the elastic connection unit can be partially or completely matched with the installation frame (5) and the automobile body in elastic connection.

2. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 1, wherein: the peripheral surface of each mounting protrusion (12) is provided with a boss (1201) which is arranged in the circumferential direction of the ring and is abutted against the end part of the outer elastic piece, the end surface of each mounting protrusion (12) is provided with a mounting part, and the mounting part is inserted into the end part of the elastic connecting unit to form the connection between the mounting frame (5) and the vehicle body.

3. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 2, wherein: the mounting portion is an annular protrusion (1202) which extends outwards along the axial direction of the mounting protrusion (12), and the annular protrusion (1202) is inserted between the inner elastic piece (14) and the outer elastic piece (13), so that the inner elastic piece (14) and the outer elastic piece (13) are isolated.

4. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 3, wherein: the outer elastic piece (13) is in clearance fit with the annular protrusion (1202), and the inner elastic piece (14) is in transition fit with the annular protrusion (1202).

5. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 3, wherein: the outer side of the insertion end of the annular protrusion (1202) is chamfered.

6. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 3, wherein: a limiting groove (1203) is arranged on the inner circumferential surface of the annular protrusion (1202), and one end of the inner elastic piece (14) can abut against the limiting groove (1203).

7. The portable battery pack damping device for the battery-replaceable electric vehicle as claimed in claim 6, wherein: and a chamfer is arranged on the inner side of the insertion end on the limiting groove (1203).

8. The portable battery pack vibration damping device for the battery replacing electric vehicle as claimed in any one of claims 1 to 7, wherein: the inner elastic piece (14) and the outer elastic piece (13) are both springs, and the length of the outer elastic piece (13) is larger than that of the inner elastic piece (14).