CN211416935U - Passenger car - Google Patents

Abstract

The utility model relates to a passenger car, which comprises a car frame, wherein the top of the car frame is provided with a roof framework, and the two ends of the roof framework along the width direction of the car body are provided with arc structures bent towards a side wall framework; the battery pack is provided with a plurality of mounting feet, at least part of the mounting feet correspond to the arc-shaped structure of the car roof framework, and the battery pack is fixed on the car roof framework by arranging fixing pieces between the mounting feet and the car roof framework; the automobile roof frame is characterized by further comprising a damping block supported between the mounting feet and the arc-shaped structure of the automobile roof frame, and the damping block supports the battery pack and absorbs vibration transmitted by the automobile frame. The frame passes through the damping piece and supports the battery package, can also absorb the vibration that the frame transmitted and come, avoids the battery package because of receiving too big vibration load and produce vibration by a wide margin, makes the battery package be in a comparatively stable mounted state, guarantees that the battery package of passenger train has qualified life.

Description

Passenger car

Technical Field

The utility model relates to a passenger car.

Background

The battery package of passenger train among the prior art is direct mount on rigid frame generally, and the passenger train is gone the in-process, and the low frequency vibration that produces by road surface unevenness can be transmitted to the battery package by tire, suspension, frame, leads to the battery package to receive vibration load and vibrate.

Especially for the passenger car with the battery pack installed at the top of the car, because the arc transition is formed between the top surface of the passenger car and the two side surfaces in the width direction of the passenger car, the sectional materials at the two ends of the top frame of the car frame along the width direction need to be designed and processed into an arc shape so as to be in arc transition connection with the side wall framework, and the width of the battery pack is wide, so that the installation feet of the part of the battery pack correspond to the arc part of the top frame of the car frame. In order to install and fix the battery pack, mounting holes can be processed only on the arc-shaped part of the frame top frame, and the battery pack mounting pins are tensioned and fixed relative to the frame by penetrating and installing long bolts between the battery pack mounting pins and the arc-shaped part of the frame top frame.

The battery package installation foot that fixes has great clearance between the frame top frame for the frame can't form stable effectual support to battery package installation foot, in addition, the battery package is far away apart from the vibration source, and the frame can be strengthened the vibration load that the battery package receives, leads to installing the battery package at the frame top and driving the in-process at the passenger train and produce vibration by a relatively large margin easily, influences the stability of the inside electrically conductive connection structural connection of battery package, and then influences the life of battery package.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a passenger train to the battery package of passenger train driving in-process top installation among the solution prior art is big because of installation foot and the big vibration range in frame clearance, influences battery package life's technical problem.

The utility model discloses the well passenger train adopts following technical scheme:

a passenger car comprises a car frame, wherein the car frame comprises a roof framework and a side wall framework, and two ends of the roof framework along the width direction of a car body are of arc structures bent towards the side wall framework; the battery pack is provided with a plurality of mounting feet, at least part of the mounting feet correspond to the arc-shaped structure of the car roof framework, and the battery pack is fixed on the car roof framework by arranging fixing pieces between the mounting feet and the car roof framework; the automobile roof frame is characterized by further comprising a damping block arranged between the mounting feet and the arc-shaped structure of the roof frame in a cushioning mode, and the damping block supports the battery pack and absorbs vibration transmitted by the automobile frame.

The beneficial effects are that: the frame supports the battery package through the damping piece, avoids the battery package because of the unsettled easy vibration that produces of stabilizer blade, and simultaneously, the damping piece can also absorb the vibration that the frame transmitted, avoids the frame to apply too big vibration load to the battery package to avoid the battery package because of receiving too big vibration load vibration by a wide margin, make the battery package be in a comparatively stable mounted state, guarantee that the battery package of passenger train has qualified life.

Further, the damping block includes a rigid support member supported between the battery pack mounting foot and the frame, the rigid support member having an interior cavity filled with a high damping material.

The beneficial effects are that: the rigid support piece makes the damping piece have higher rigidity, and the high damping material that fills in the inner chamber makes the damping piece have good shock-absorbing capacity, guarantees that the damping piece can provide stable support to the battery package, can absorb the vibration that the frame transmitted comes effectively again, weakens the holistic vibration of passenger train.

Further, the rigid supporting part is of an enclosing frame structure, and the rigid supporting part of the enclosing frame structure is provided with a lower wall surface matched with the frame and an upper wall surface matched with the battery pack mounting feet.

Has the advantages that: the rigid support piece with the supporting function enables the damping block to have higher rigidity, and high damping materials are conveniently filled in the inner cavity of the rigid support piece, so that the structural strength of the passenger car is better.

Further, the high damping material is a foamed metal.

The beneficial effects are that: the foam metal has high rigidity while having good vibration absorption capacity, so that the damping block is ensured to have high rigidity, and the battery pack of the passenger car is supported more stably.

Furthermore, the damping block is a wedge-shaped structure with an included angle between the upper surface and the lower surface.

The beneficial effects are that: the rigid support piece with the wedge-shaped structure can have a larger supporting contact surface with the arc-shaped structures of the mounting feet and the roof framework, so that the damping block is more stably in supporting contact with the frame and the mounting feet, and the battery pack of the passenger car can be stably supported.

Further, the fixing piece is a bolt and nut assembly, and the damping block is provided with a bolt through hole for a bolt of the bolt and nut assembly to penetrate through.

The beneficial effects are that: the battery pack, the damping block and the frame are fixed together through the bolt and nut assembly, so that the battery pack and the damping block are convenient to install, and the assembly of the passenger car is more convenient.

Further, the roof framework is formed by welding hollow sections, and high-damping materials are filled in the hollow sections.

The beneficial effects are that: the rigidity of the roof framework is improved, the roof framework has good vibration absorption capacity, the situation that the roof framework applies too large vibration load to the battery pack to cause the battery pack to generate large-amplitude vibration is avoided, the battery pack of the passenger car is ensured to be in a stable state, and the passenger car is prevented from breaking down due to the vibration of the battery pack.

Further, the high damping material filled in the hollow section is foam metal.

The beneficial effects are that: the foam metal has high rigidity while having good vibration absorption capacity, so that the roof framework is ensured to have high rigidity, and the battery pack of the passenger car is supported more stably.

Drawings

FIG. 1 is a schematic structural view of a frame of an embodiment 1 of a middle bus of the present invention;

fig. 2 is a schematic view of the structure of the part of the frame of the middle bus in embodiment 1 of the present invention, which supports the battery plate, and the position of the battery pack mounted on the frame;

fig. 3 is a schematic view of the installation structure of the battery pack on the roof frame of the middle bus in the embodiment 1 of the present invention;

in the figure: 1-a roof skeleton; 2-a cross beam; 3-longitudinal beams; 4-a battery pack; 5-mounting a pin; 6-bolt and nut assembly; 7-a damping block; 8-a rigid support; 9-high damping material; 10-side wall frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses a concrete embodiment 1 of passenger train: the passenger car comprises a car frame and a battery pack, as shown in figure 1, the top of the car frame is a car roof framework 1, the side part of the car frame is a side wall framework 10, and the battery pack is installed on the car roof framework 1 during assembly.

Specifically, the structure of the roof frame 1 of the frame is as shown in fig. 2, and comprises a cross beam 2 and a longitudinal beam 3, wherein the middle part of the cross beam 2 is straight, and the two ends along the width direction of the passenger car are bent into an arc towards the side wall frame 10, so that the two ends of the roof frame 1 are arc-shaped structures, the roof frame 1 is connected with the side wall frames on the two sides of the frame 1 through the arc-shaped structures on the two ends, and the two sides of the car body are in arc transition with the top surface.

Along the width direction of the vehicle body, namely the left and right direction, two battery packs 4 are arranged on the roof framework 1 in parallel, and the battery packs 4 are installed on the roof framework 1 through fixing pieces arranged between the installation feet and the roof framework. Specifically, each battery pack 4 has three mounting legs 5 arranged at intervals on the left and right sides thereof. Each mounting foot 5 extends horizontally and is provided with a fixing hole, correspondingly, a fixing hole corresponding hole opposite to the fixing hole in the vertical direction is formed in the longitudinal beam 3 of the roof framework 1, and as shown in fig. 3, the fixing piece is a bolt and nut assembly 6 which is arranged in the corresponding hole of the fixing hole and the fixing hole in a penetrating mode.

For the number of the mounting pins on each battery pack, in other embodiments, the number of the mounting pins can be adaptively increased or decreased according to actual situations, for example, if the size and the mass of the battery pack are larger, more mounting pins can be provided, and if the size and the mass of the battery pack are relatively smaller, fewer mounting pins can be provided, but the number of the mounting pins of each battery pack is not less than two. Of course, more than two battery packs may be provided on the passenger car, or only one battery pack with a larger capacity may be provided.

The three mounting feet 5 on the left side edge of the left battery pack 4 correspond to the longitudinal beam 3 at the arc-shaped structure on the left side of the roof framework 1, so that a wedge-shaped space is formed between the three mounting feet 5 and the roof framework 1; the three mounting feet 5 on the right-hand side of the right-hand battery pack 4 correspond to the longitudinal beams 3 on the right-hand side of the roof frame 1 at the curved structure, which likewise results in a wedge-shaped space between the three mounting feet 5 and the roof frame 1. In other embodiments, the mounting feet may also correspond to the cross beam at the arc structure, and at this time, the lower end surface of the damping block is set to be an arc surface matched with the arc surface of the cross beam.

In order to overcome the vibration of the battery pack 2 caused by the existence of the wedge-shaped space during the running process of the passenger car, as shown in fig. 3, damping blocks 7 are padded between the three mounting feet 5 on the left side edge of the left battery pack 4 and the roof frame 1, and similarly, damping blocks 7 are padded between the three mounting feet 5 on the right side edge of the right battery pack 4 and the roof frame 1.

Regarding the structure of the damping block 7, as shown in fig. 3, the damping block 7 includes a rigid support member 8, the rigid support member 8 is a surrounding frame structure with two open ends along the length direction of the vehicle body, the lower wall surface is attached to the roof frame 1, the upper wall surface is attached to the mounting leg 5, and the inner cavity of the surrounding frame structure is filled with a high damping material 9.

The rigid supporting part 8 enables the damping block to have strong rigidity so as to stably support the battery pack 4, and the high-damping material 9 enables the damping block 7 to have strong vibration absorption capacity so as to absorb vibration transmitted by the frame towards the battery pack 4. The damping block 7 is provided with a bolt through hole for the bolt of the bolt-nut component 6 to pass through, and the bolt-nut component 6 fixes the frame, the battery pack 4 and the damping block 7 at the same time.

In this embodiment, the high damping material 9 is a foam metal, and the foam metal has a high rigidity while having a good vibration absorbing capability, so as to further enable the damping block 7 to have a high rigidity, and the foam metal may specifically be foam steel, foam aluminum, foam copper, or the like. In other embodiments, the high damping material may also be a high damping polymer material, such as foamed rubber, for weight reduction. In other embodiments, the rigid support member may also be a U-shaped structure, two side walls of the U-shaped structure rigid support member are respectively in contact with the mounting foot and the roof frame, and an inner cavity of the U-shaped structure is filled with a high damping material. Of course, the damping block may not have a rigid support member if it is entirely made of a highly damping material having high rigidity and can provide stable support to the battery pack.

Further, in this embodiment, because the curvature of the arc-shaped structure of the roof frame 1 is small, the cross section of the rigid support member 8 is set to be wedge-shaped, so that the upper and lower end surfaces of the rigid support member 8 can have a large support contact surface with the corresponding mounting foot 5 and the arc-shaped structure of the roof frame 1, and further the damping block 7 can support the battery pack 4 more stably. Of course, in other embodiments, the mounting foot may not extend in the horizontal direction, but may be disposed diagonally downward along the curved direction of the arc-shaped structure of the roof frame, and in this case, the damping block may have a rectangular structure.

In addition, in order to make the frame have good shock absorption function, in the embodiment, the roof frame 1 is formed by welding the rectangular tubes, and the inner cavities of the rectangular tubes are also filled with high damping materials, so that the frame has high rigidity and good shock absorption capability. The high damping material can be foam metal with higher rigidity, and can also be high damping polymer material, such as foam rubber.

The utility model discloses embodiment 2 of well passenger train is different from embodiment 1, in this embodiment, all fill up the damping piece under each installation foot of every battery package for the frame passes through the damping piece and to the indirect support of battery package, and the damping piece between frame and the battery package is transmitted the vibration absorption of coming with the frame, avoids the frame to apply too big vibration load to the battery package.

The utility model discloses the embodiment 3 of center bus, different from embodiment 1, in this embodiment, rigid support piece is the material that can weld, through welded fastening with rigid support piece snap-on the roof skeleton to fix the damping piece on the roof skeleton, then install the battery package on the roof skeleton through the bolt nut subassembly, the installation foot of battery package compresses tightly on the damping piece, the bolt of bolt nut subassembly need not to pass through the damping piece, and passes through from the damping piece lateral part.

The utility model discloses embodiment 4 of center bus, different from embodiment 1, in this embodiment, to the presser foot of each side of each battery package, correspond and set up rectangular shape clamp plate, rectangular shape clamp plate presses all presser foot upsides in one side, and the bolt nut subassembly is passed through at both ends and installs on the roof skeleton, fixes the panel on the roof skeleton through on fixing the roof skeleton with the clamp plate.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A passenger vehicle, comprising:

the frame comprises a roof framework and a side wall framework, wherein two ends of the roof framework along the width direction of the vehicle body are arc structures bent towards the side wall framework;

the battery pack is provided with a plurality of mounting feet, at least part of the mounting feet correspond to the arc-shaped structure of the car roof framework, and the battery pack is fixed on the car roof framework by arranging fixing pieces between the mounting feet and the car roof framework;

it is characterized by also comprising:

and the damping block is arranged between the mounting foot and the arc-shaped structure of the car roof framework in a cushioning mode, supports the battery pack and absorbs vibration transmitted by the car frame.

2. The passenger vehicle of claim 1, wherein the damping mass comprises a rigid support member supported between the frame and the battery pack mounting feet, the rigid support member having an interior cavity filled with a high damping material.

3. The passenger vehicle of claim 2, wherein the rigid support member is a surrounding frame structure having a lower wall surface for engaging the frame and an upper wall surface for engaging the battery pack mounting feet.

4. A passenger vehicle according to claim 2 or 3, wherein the high damping material is a metal foam.

5. A passenger vehicle according to any one of claims 1 to 3, wherein the damping mass is of a wedge-shaped configuration with an included angle between its upper and lower surfaces.

6. The passenger vehicle according to any one of claims 1 to 3, wherein the fixing member is a bolt-nut assembly, and the damping block is provided with a bolt passage hole through which a bolt of the bolt-nut assembly passes.

7. A passenger vehicle according to any one of claims 1 to 3, wherein the roof frame is formed by welding hollow profiles filled with a high damping material.

8. The passenger car according to claim 7, wherein the high damping material filled in the hollow section is a foamed metal.

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