CN219257047U - Novel commercial car trades electric base suspension structure - Google Patents

Abstract

The utility model discloses a novel commercial vehicle power conversion base suspension structure, which relates to the technical field of automobile parts and comprises a frame, a power conversion base and a plurality of suspension mechanisms arranged between the frame and the power conversion base; the suspension mechanism comprises a bushing-shaped rubber suspension which is horizontally arranged, and the bushing-shaped rubber suspension is arranged outside the frame and is connected with the frame through a lower bracket and is also connected with the electricity changing base through an upper bracket. The utility model is arranged between the power conversion base and the frame, can attenuate the transmission of road vibration excitation, and relieves the stress of the frame torsion to the base under the limit working condition.

Description

Novel commercial car trades electric base suspension structure

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a novel commercial vehicle electricity changing base suspension structure.

Background

Currently, the automobile industry is rapidly transformed to new energy, and the application of battery packs for replacing the electric energy is more and more widely used in the field of new energy commercial vehicles. The battery pack is arranged between the cab and the cargo box, and the battery pack is loaded on the bottom bracket.

However, in the current common structure, the electricity exchanging base and the frame are often directly connected by bolts, the rigidity of the connecting point is very high, and the vibration excitation of the road surface is directly transmitted to the electricity exchanging base through the frame without attenuation. Because the battery pack is heavy and has large inertia, the battery replacement base is subjected to double influences of vibration and inertia impact, and breakage is easy to occur. In addition, the rigidity of the connection point between the electricity conversion base and the frame is too high, even exceeds the rigidity of the frame, and the torsion characteristic of the frame under the limit working condition is directly transmitted to the electricity conversion base, so that the base is broken.

The patent document of battery pack suspension device and automobile (patent application number: 202111581435.6) discloses a suspension device which is used for a chassis hoisting type battery pack, has smaller bearing weight, and cannot adapt to the large-tonnage vertical battery pack and a battery replacing system between a cab and a container at present.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a novel commercial vehicle electricity changing base suspension structure which is arranged between an electricity changing base and a vehicle frame, can attenuate the transmission of vibration excitation of a road surface and relieve the stress of the vehicle frame torsion to the base under the limit working condition.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel commercial car trades electric base suspension structure, includes frame and trades electric base, still includes a plurality of suspension mechanism that set up between frame and trades electric base; the suspension mechanism comprises a bushing-shaped rubber suspension which is horizontally arranged, and the bushing-shaped rubber suspension is arranged outside the frame and connected with the frame through a lower bracket and also connected with the electricity changing base through an upper bracket.

The further improvement is that: the bushing-shaped rubber suspension comprises a shell and a center shaft; the middle shaft is arranged in the shell and is bonded through vulcanized natural rubber; the two ends of the center shaft extend out of the shell and then expand to form a connector, and the connector is provided with two first connecting holes.

The further improvement is that: the middle shaft is in an I-shaped structure.

The further improvement is that: the upper bracket comprises a first mounting plate and a connecting sleeve; the first mounting plate is provided with a plurality of first mounting holes for connecting the battery replacement base; the connecting sleeve is in interference fit with the bushing-shaped rubber suspension and is connected with the first mounting plate through the connecting plate.

The further improvement is that: the connecting sleeve, the connecting plate and the first mounting plate are of an integrated structure.

The further improvement is that: the lower bracket comprises a second mounting plate; the second mounting plate is provided with a plurality of second mounting holes for connecting the frame; the both sides of second mounting panel are provided with the supporting seat respectively, be provided with the second connecting hole with first connecting hole looks adaptation on the supporting seat.

The further improvement is that: the supporting seat is of a right triangle structure.

The further improvement is that: and a buffer cushion is arranged at the joint of the frame and the electricity changing base.

The further improvement is that: the cushion pad is made of polyurethane materials.

The further improvement is that: the suspension mechanisms are six, and are symmetrically arranged on two sides of the frame.

The utility model has the beneficial effects that:

1. the utility model is arranged between the power conversion base and the frame, can attenuate the transmission of road vibration excitation, and relieves the stress of the frame torsion to the base under the limit working condition.

2. The vertical battery pack with the structural strength and the bearing capacity more suitable for the current mainstream and the battery replacement system thereof

3. The utility model has more arrangement points and better control effect on the pitching tilting motion of the vertical battery pack

4. The high-reliability bushing structure and the double-hole flange are fastened, and the high-reliability bushing structure and the double-hole flange are more advantageous for the long-term reliability of a large-tonnage battery pack.

5. The buffer cushion arranged between the power conversion base and the frame has the effects of extra buffering and abnormal sound reduction.

Drawings

FIG. 1 is a schematic view of a suspension structure of a power conversion chassis of a new commercial vehicle in an embodiment of the present utility model;

FIG. 2 is a schematic view of a suspension mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a suspension mechanism according to another embodiment of the present utility model;

FIG. 4 is a schematic view of a bushing-shaped rubber suspension according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the upper bracket according to the embodiment of the present utility model;

FIG. 6 is a schematic view of the upper support in another view according to the embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of a lower bracket according to an embodiment of the present utility model;

FIG. 8 is a schematic view of another view of the lower bracket according to the embodiment of the present utility model;

FIG. 9 is a schematic view of a cushion according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the installation of a cushion in accordance with an embodiment of the present utility model.

Reference numerals:

1-a frame; 2-a power conversion base; 3-a suspension mechanism; 31-bushing-shaped rubber suspension; 311-a housing; 312-vulcanizing natural rubber; 313-middle axis; 314-connecting heads; 315—first connection holes; 32-upper rack; 321-connecting sleeves; 322-connecting plates; 323-a first mounting plate; 324-a first mounting hole; 33-a lower rack; 331-a second mounting plate; 332-a second mounting hole; 333-a support base; 334-a second connection hole; 4-cushion pad.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1, an embodiment of the utility model provides a novel commercial vehicle power exchange base suspension structure, which comprises a frame 1, a power exchange base 2 and a plurality of suspension mechanisms 3 arranged between the frame 1 and the power exchange base 2; specifically, the suspension mechanisms 3 are six, and are symmetrically arranged on two sides of the frame 1. The upper bracket and the lower bracket are both made of metal, and can be cast and produced by sheet metal welding.

Referring to fig. 2 and 3, the suspension mechanism 3 includes a horizontally disposed bushing-shaped rubber suspension 31, which bushing-shaped rubber suspension 31 is disposed outside the vehicle frame 1 and is connected to the vehicle frame 1 by a lower bracket 33 and is also connected to the power exchanging base 2 by an upper bracket 32.

Referring to fig. 4, the bush-shaped rubber mount 31 includes a housing 311 and a center shaft 313; the central shaft 313 is disposed within the housing 311 and bonded by the vulcanized natural rubber 312; the two ends of the center shaft 313 extend out of the housing 311 and then expand to form a connecting head 314, and the connecting head 314 is provided with two first connecting holes 315. Specifically, the central shaft 313 has an i-shaped structure.

Referring to fig. 5 and 6, the upper bracket 32 includes a first mounting plate 323 and a connecting sleeve 321; the first mounting plate 323 is provided with a plurality of first mounting holes 324 for connecting the battery exchange base 2; the connecting sleeve 321 is in interference fit with the bushing-shaped rubber mount 31 and is connected to the first mounting plate 323 by a connecting plate 322. Specifically, the connecting sleeve 321, the connecting plate 322, and the first mounting plate 323 are integrally formed.

Referring to fig. 7 and 8, the lower bracket 33 includes a second mounting plate 331; the second mounting plate 331 is provided with a plurality of second mounting holes 332 for connecting the frame 1; the two sides of the second mounting plate 331 are respectively provided with a supporting seat 333, and the supporting seat 333 is provided with a second connecting hole 334 adapted to the first connecting hole 315. Specifically, the support base 333 has a right triangle structure.

Referring to fig. 9 and 10, a cushion pad 4 is provided at the junction of the frame 1 and the battery-changing base. Specifically, the cushion pad 4 is made of polyurethane material and is used for preventing rigid collision between the battery replacement base and the frame in the limit working condition, so that damage and abnormal sound are avoided.

The working principle of the utility model is as follows:

the middle shaft of the rubber bushing is bonded with the shell through vulcanized natural rubber. When the vehicle is stationary, the elasticity of the rubber generates a reaction force in the vertical direction of the ground to bear the weight of the battery pack and the battery replacement base, and at the moment, the center shaft and the shell are relatively stationary. When the vehicle runs, the road surface topography difference contacted by the front wheel and the rear wheel is transmitted to the frame, so that the frame is subjected to torsional deformation. Because the elasticity of rubber is flexible, make the axis of rubber bush and shell possess 6 degrees of freedom relative motion's possibility, this elasticity motion characteristic can alleviate the frame and twist reverse the stress of trading the electric base. Meanwhile, due to the damping characteristic of the rubber, the rubber can absorb the transmission of road vibration excitation, and the purpose of vibration reduction is achieved.

In the description of the present utility model, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

From the above description of the structure and principles, it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present utility model fall within the scope of the present utility model, which is defined by the appended claims.

Claims (10)

1. The utility model provides a novel commercial car trades electric base suspension structure, includes frame (1) and trades electric base (2), its characterized in that: the electric vehicle further comprises a plurality of suspension mechanisms (3) arranged between the vehicle frame (1) and the power exchange base (2); the suspension mechanism (3) comprises a bushing-shaped rubber suspension (31) which is horizontally arranged, wherein the bushing-shaped rubber suspension (31) is arranged outside the frame (1) and is connected with the frame (1) through a lower bracket (33) and is also connected with the power exchange base (2) through an upper bracket (32).

2. The novel commercial vehicle battery exchange base suspension structure according to claim 1, characterized in that: the bushing-shaped rubber suspension (31) comprises a shell (311) and a middle shaft (313); the middle shaft (313) is arranged in the shell (311) and is bonded through vulcanized natural rubber (312); the two ends of the center shaft (313) extend out of the shell (311) and then expand to form a connecting head (314), and the connecting head (314) is provided with two first connecting holes (315).

3. The novel commercial vehicle battery exchange base suspension structure according to claim 2, characterized in that: the middle shaft (313) is in an I-shaped structure.

4. The novel commercial vehicle battery exchange base suspension structure according to claim 2, characterized in that: the upper bracket (32) comprises a first mounting plate (323) and a connecting sleeve (321); the first mounting plate (323) is provided with a plurality of first mounting holes (324) for connecting the power conversion base (2); the connecting sleeve (321) is in interference fit with the bushing-shaped rubber suspension (31) and is connected with the first mounting plate (323) through the connecting plate (322).

5. The novel commercial vehicle battery-changing base suspension structure according to claim 4, wherein: the connecting sleeve (321), the connecting plate (322) and the first mounting plate (323) are of an integrated structure.

6. The novel commercial vehicle battery exchange base suspension structure according to claim 2, characterized in that: the lower bracket (33) comprises a second mounting plate (331); the second mounting plate (331) is provided with a plurality of second mounting holes (332) for connecting the frame (1); the two sides of the second mounting plate (331) are respectively provided with a supporting seat (333), and the supporting seat (333) is provided with a second connecting hole (334) which is matched with the first connecting hole (315).

7. The novel commercial vehicle battery exchange base suspension structure according to claim 6, wherein: the supporting seat (333) is in a right triangle structure.

8. The novel commercial vehicle battery exchange base suspension structure according to claim 1, characterized in that: the connection part of the frame (1) and the electricity changing base is provided with a buffer cushion (4).

9. The novel commercial vehicle battery exchange base suspension structure according to claim 8, wherein: the cushion pad (4) is made of polyurethane material.

10. The novel commercial vehicle battery exchange base suspension structure according to claim 1, characterized in that: the six suspension mechanisms (3) are symmetrically arranged on two sides of the frame (1).

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