CN205930213U - Connection structure and car of battery box frame and battery box - Google Patents

Abstract

The utility model discloses a connection structure and car of battery box frame and battery box, four end angles of the bottom of battery box all have towards the inside recess of battery box, have in the recess stretch into to the inside fastener mounting hole of battery box, battery box frame is including the frame roof beam that surrounds the form a rectangle frame, the battery box is fixed extremely rectangular frame, the frame roof beam includes: frame roof beam body, frame roof beam body extends along the width or the length direction of automobile body, frame roof beam strutbeam, from the orientation of frame roof beam body the side surface orientation of battery box the battery box level is extended, place the bottom of battery box on the frame roof beam strutbeam, with the battery box fastener, the battery box fastener will frame roof beam strutbeam and battery box fixed connection, the battery box fastener with the cooperation of fastener mounting hole.

Description

The attachment structure of a kind of battery cabinet frame and battery case and automobile

Technical field

This utility model is related to automotive field, the attachment structure particularly to a kind of battery cabinet frame and battery case and inclusion The automobile of this attachment structure.

Background technology

In existing new-energy automobile, Soft Roll lithium ion battery battery case is used mostly the connection beyond battery case Part is fixed to body of a motor car or battery cabinet frame.

Wherein, as illustrated in figs. ia and ib, a connector 2 and battery case are passed through at each end angle of battery case 1 bottom Framework 3 connects, and the end angle of battery case 1 is fixedly connected with connector 2 by securing member 4.

Wherein, connector 2 includes the first side wall 2a and the second sidewall fitted with two side walls at the end angle of this battery case 1 2b, and the 3rd side wall 2c fitting with the diapire at the end angle of this battery case 1, the first side wall 2a, second sidewall 2b and the 3rd side Wall 2c is interconnected to form a shape corresponding with the end angle of this battery case 1.Have the 4th in the outside of second sidewall 2b Side wall 2d, the 4th side wall 2d typically horizontally extends, for connector 2 is fixedly connected with battery cabinet frame 3, the 4th side Installing hole with appended claims is had on wall 2d.

The first side wall 2a and second sidewall 2b are mutually perpendicular to, and are respectively provided with least one securing member 4 thereon fixing with battery case 1 Connect, realized to the spacing of battery case with the direction different from two and fix.3rd side wall 2c is from the bottom of battery case 1 to electricity Pond case 1 is realized supporting, spacing to battery case to realize from the 3rd direction.

The existing this connector for battery case is located at the outside of battery case, because it is different at least through two edges Direction battery case carried out with spacing and fixing securing member 4 realize being fixedly connected of connector and battery case, and be used for battery The connector of case also needs at least one securing member and realizes and being fixedly connected of battery cabinet frame, therefore battery case and battery box-frame Not only fixing step is loaded down with trivial details for the attachment structure of frame, and the operating time is long, and needs to take larger working place.

Utility model content

In view of this, the purpose of this utility model is the attachment structure providing a kind of battery cabinet frame and battery case, and it leads to Cross and connector is built in space within battery case, the space shared by attachment structure can be greatly reduced.

Embodiment of the present utility model provides the attachment structure of a kind of battery cabinet frame and battery case,

Four ends angle of the bottom of described battery case is respectively provided with the groove within towards battery case, has and stretch in described groove Enter the fastener receptacles within to described battery case；

Described battery cabinet frame includes surrounding the Vierendeel girder forming rectangular frame, and described battery case is fixed to described rectangle frame Frame, described Vierendeel girder includes：

Vierendeel girder body, described Vierendeel girder body extends along the width of vehicle body or length direction；

Vierendeel girder strutbeam, it is from described Vierendeel girder body towards a side surface of described battery case towards described battery case Horizontal-extending, the bottom of described battery case is placed on described Vierendeel girder strutbeam；With

Battery case securing member, described Vierendeel girder strutbeam is fixedly connected by described battery case securing member with battery case, described electricity Pond case securing member and described fastener receptacles cooperation.

Preferably, described groove has the groove top surface parallel with the bottom surface of described battery case,

Described attachment structure further includes：

Battery case fastener sleeve, the top of described battery case fastener sleeve against described groove top surface, bottom against Described Vierendeel girder strutbeam, described battery case securing member passes through from described battery case fastener sleeve.

Preferably, described Vierendeel girder strutbeam is the hollow beam with hollow cavity, and it includes：

Vierendeel girder strutbeam upper surface, the bottom of its described battery case of fitting；With

Vierendeel girder strutbeam lower surface, it is relative with described Vierendeel girder strutbeam upper surface interval.

Preferably, described Vierendeel girder strutbeam upper surface has Vierendeel girder strutbeam via；

Described Vierendeel girder strutbeam lower surface has Vierendeel girder strutbeam installing hole, and described battery case fastener sleeve is from described frame Strutbeam via of setting a roof beam in place passes through, and against described Vierendeel girder strutbeam lower surface in described hollow cavity, described battery case is tight for its bottom The end of firmware against described Vierendeel girder strutbeam lower surface, passes through described Vierendeel girder strutbeam to limit it from outside described hollow cavity Installing hole.

Preferably, the thickness of described Vierendeel girder strutbeam upper surface is less than the thickness of described Vierendeel girder strutbeam lower surface.

Preferably, described Vierendeel girder strutbeam upper surface is less than the upper surface of described Vierendeel girder body, the side of described battery case Wall is against described Vierendeel girder body towards a side surface of described battery case.

Preferably, described Vierendeel girder body is hollow beam, further includes inside it：

Two Vierendeel girder reinforcements, it is horizontally extending, and with described Vierendeel girder strutbeam upper surface and Vierendeel girder The position of strutbeam lower surface corresponds to.

Another embodiment of the present utility model additionally provides a kind of automobile, and described automobile includes battery box-frame as above Frame and the attachment structure of battery case.

Brief description

The following drawings only does schematic illustration and explanation to this utility model, does not limit scope of the present utility model.

Fig. 1 a is the structural representation of a kind of existing battery cabinet frame and the attachment structure of battery case.

Fig. 1 b is the structural representation of existing battery case connector.

Fig. 2 is the side view of the body frame in the present embodiment.

Fig. 3 is the side view of the body frame of battery cabinet frame of installing the present embodiment.

Fig. 4 is the structural representation of the battery cabinet frame of the present embodiment.

Fig. 5 is the top view of the bottom frame of battery cabinet frame of the present embodiment.

Fig. 6 is the upward view of the body frame of battery cabinet frame of installing the present embodiment.

Fig. 7 is the profile of the bottom jack stringer in the present embodiment and its associated connecting structure.

Fig. 8 is the structural representation of longeron in the bottom in the present embodiment.

Fig. 9 a and Fig. 9 b is the structural representation of bottom front beam and sectional view in the present embodiment.

Figure 10 is the structural representation of the bottom rear cross beam in the present embodiment.

Figure 11 is the side cutaway view of the bottom rear cross beam in the present embodiment.

Figure 12 is the rear pseudosection of the bottom rear cross beam in the present embodiment.

Figure 13 is the top view of the middle level framework in the present embodiment.

Figure 14 is the sectional view of the middle level jack stringer in the present embodiment.

Figure 15 is the sectional view of longeron in the middle level in the present embodiment.

Figure 16 a and Figure 16 b is the structural representation of middle level middle cross beam and sectional view in the present embodiment.

Figure 17 a and Figure 17 b is the structural representation of the first vertical beam and sectional view in the present embodiment.

Figure 18 is the top view of the upper strata framework in the present embodiment.

Figure 19 a and Figure 19 b is the structural representation of middle passage second web beam and sectional view in the present embodiment.

Figure 20 is the sectional view of middle passage first buttress brace in the present embodiment.

Figure 21 is the structural representation of the battery case in the present embodiment.

Figure 22 is the sectional view of the battery cabinet frame in the present embodiment and the attachment structure of battery case.

Figure 23 is the flow chart of the installation method of battery cabinet frame in the present embodiment.

Specific embodiment

In order to be more clearly understood to the technical characteristic of invention, purpose and effect, now compare the brief description present invention Specific embodiment, in the various figures identical label represent identical part.

Herein, " schematic " expression " serving as example, example or explanation ", should not will be described herein as " showing Any diagram of meaning property ", embodiment are construed to a kind of preferred or more advantage technical scheme.

For making simplified form, each in figure only schematically show part related to the present invention, and do not represent it Practical structures as product.In addition, so that simplified form readily appreciates, have the portion of identical structure or function in some in figures Part, only symbolically depicts one of, or has only marked one of.

Because the battery cabinet frame in the present embodiment is mounted in body of a motor car, therefore hereinafter involved " front, Afterwards ", " upper and lower ", " inside and outside " directional terms be all with respect to vehicle body " forward and backward ", " upper and lower ", " inside and outside " direction and Speech.

Fig. 2 is the side view of the body frame in the present embodiment.Fig. 3 is the vehicle body of the battery cabinet frame of installing the present embodiment The side view of skeleton.Fig. 4 is the structural representation of the battery cabinet frame of the present embodiment.As shown in Figures 2 to 4, the present embodiment carries Supply a kind of battery cabinet frame, for installing battery case, including：

Bottom frame 20, bottom frame 20 is rectangular frame, and its rear portion is fixing with two rear portion longerons 82 of body frame Connect, its both sides is fixedly connected with the medial wall of two threshold longerons 81 of body frame respectively, described bottom frame 20 with after Formed between portion's longeron 82, threshold longeron 81 shape all-in-one-piece structure, and the rear portion longeron 82 at interval and threshold longeron 81 The bang path of power.

As shown in Fig. 2 from unlike the body frame of existing integrative-structure, in the body frame of the present invention, On the length direction of vehicle body, there is between rear portion longeron 82 and threshold longeron 81 interval, then the positive impact force being derived from headstock direction passes Be handed to threshold longeron 81 tail end when it is impossible to continue to transmit to body frame rear portion assembly, and be derived from the rear impact force in tailstock direction Be transferred to rear portion longeron 82 front end when it is impossible to continue to body frame front portion assembly transmission, lead in the bang path of power Disconnected.

The bottom frame 20 of the battery cabinet frame of the present embodiment is connected to rear portion longeron 82 as a part for body frame With threshold longeron 81, the structure that the front and rear of body frame is connected to form one, and the rear portion longeron 82 at interval Form the bang path of power and threshold longeron 81 between.Positive impact force from headstock direction is transferred to the tail end of threshold longeron 81 When, it is transferred to the rear portion longeron 82 being connected with bottom frame 20 by the bottom frame 20 connecting as one with threshold longeron 81, Thus continue by positive impact force to tailstock direction transmit, from the rear impact force in tailstock direction be transferred to the front end of rear portion longeron 82 when, It is transferred to the threshold longeron 81 connecting as one with bottom frame 20 by the bottom frame 20 being connected with rear portion longeron 82, thus Continue to transmit rear impact force to headstock direction.The battery cabinet frame of the present embodiment is passed through to connect the front and rear of body frame Shape all-in-one-piece structure, it can be avoided that impact force is transferred in crew module, thus improve the security performance of vehicle body.

Further, in existing body frame, between threshold longeron and rear portion longeron on the width of vehicle body Also there is interval, need to be attached realizing the transmission of power by crossbeam.And the rear portion of existing battery cabinet frame generally sets Put in the space between two rear portion longerons, its width is much smaller than the width between two threshold longerons, therefore leads to existing The battery case than anterior installing for the rear portion of battery cabinet frame quantity few.

And in the battery cabinet frame of the present embodiment, due to battery cabinet frame bottom frame 20 threshold longeron 81 with after Form the bang path of power between portion's longeron 82, can be therefore that battery cabinet frame is kept away by reducing the size of rear portion longeron 82 Concede bigger space, the transmission function of the power of rear portion longeron 82 and the strength support of offer can by battery cabinet frame Lai Supplemented.So, the overall width of the bottom frame 20 of battery cabinet frame is equal to the distance between two threshold longerons 81, Approximate body width.That is, the width of the latter half of bottom frame 20 is much larger than existing battery cabinet frame The width at rear portion, the latter half of bottom frame 20 can install the quantity identical battery case with first half installing, so extremely The installing space of a battery case can be increased less.

From the foregoing, it will be observed that in the battery cabinet frame and automobile of the present embodiment, using the bottom frame of battery cabinet frame as car A part for body skeleton is installed in body frame, can not only ensure the intensity of body frame, and can expand battery case The shared space in vehicle body of framework, thus improving the battery box number that battery cabinet frame is installed, to improve the continuous of automobile Boat mileage.

Fig. 5 is the top view of the bottom frame of battery cabinet frame of the present embodiment, and Fig. 6 is the battery case of installing the present embodiment The upward view of the body frame of framework, as shown in Figure 5 and Figure 6, described bottom frame 20 includes：

Bottom rear cross beam 21, described bottom rear cross beam 21 is arranged along vehicle-body width direction；

Bottom front beam 22, described bottom front beam 22 is arranged along vehicle-body width direction, and is located at described bottom rear cross beam 21 front；With

Two bottom jack stringers 23, described bottom jack stringer 23 is arranged along length of wagon direction, vertical outside each described bottom The rear and front end of beam 23 is connected with the corresponding side end of described bottom rear cross beam 21 and bottom front beam 22 respectively, to form rectangle Framework.

In bottom frame 20, the bottom rear cross beam 21 being mutually connected vertically, bottom jack stringer 23 not only will have interval Rear portion longeron 82 and threshold longeron 81 connect as one, to be formed at the conducting path of the power on the length direction of vehicle body, and And bottom rear cross beam 21 and bottom front beam 22 are connected between two threshold longerons 81 by two bottom jack stringers 23, and edge Vehicle-body width direction is arranged, thus being to provide the conducting path of power so that being derived from lateral along the side impact force in vehicle-body width direction Impact force avoid and open crew module, but from below crew module or the battery cabinet frame at rear is transmitted, thus improve The security performance of vehicle body.

Wherein, the rear side surface of described bottom rear cross beam 21 is fixedly connected with two rear portion longerons 82 of body frame,

The outer surface of two described bottom jack stringers 23 medial wall with two threshold longerons 81 of body frame respectively It is fixedly connected.

In addition, as shown in figure 3, described bottom rear cross beam 21 bottom with two rear portion vertical beams 83 of body frame further It is fixedly connected.Wherein, rear portion vertical beam 83 generally extends along the short transverse of vehicle body, and it is connected to arranged in parallel two Between longeron, the bottom of two rear portion vertical beams 83 that bottom rear cross beam 21 is extended with the short transverse along vehicle body is fixedly connected, and makes The conducting path obtaining the power connecting from battery cabinet frame has multiple different directions, to realize the rapid dispersion of impact force, Reduce the intensity of the power that each bang path is undertaken, improve the security performance of body frame.

As shown in Figure 5 and Figure 6, bottom frame 20 further includes forward frame 10, and forward frame 10 includes：

Two middle passages strengthen longerons 11, and described middle passage is strengthened longeron 11 and arranged along length of wagon direction, its rear end with The front side surface of described bottom front beam 22 is fixedly connected, and described two middle passages are strengthened longeron 11 and are separately positioned in vehicle body Below two side walls of passage 84.

Middle passage 84 is an important space of installing battery case, and the middle passage of two in the present embodiment strengthens longeron 11 Be applied not only to install battery case, and by with bottom front beam 22 constitute one along length of wagon direction extend The conducting path of power.Rear impact force from tailstock direction also can be via rear portion longeron 82, bottom rear cross beam 21, bottom jack stringer 23rd, bottom front beam 22 is transferred to two middle passages reinforcement longerons 11, and continues to headstock direction via middle passage reinforcement longeron 11 Resume and pass, to realize the transmission of power and the dispersion of power.

Specifically, described bottom front beam 22 is fixedly connected with two Floor rear crossbeam 85 of vehicle body, each described floor Rear cross beam 85 is connected between a described threshold longeron 81 and middle passage 84.

As can be seen here, the bottom frame 20 of battery cabinet frame passes through two Floor rear crossbeam of bottom front beam 22 and vehicle body 85 are fixedly connected, thus increased the conducting path of a power in vehicle-body width direction.

Bottom frame 20 further includes forward frame 10, and forward frame 10 includes：

Middle passage the first web beam 12, described middle passage the first web beam 12 is arranged along the width of vehicle body, its It is connected to two middle passages to strengthen between the front end of longeron 11, its two ends is connected with a floor front beam 86 of vehicle body respectively, Two middle passages are strengthened longeron 11 and are linked together with floor front beam 86 by middle passage the first web beam 12.

Forward frame 10 can further include：

Middle passage the second web beam 13, it is along the width setting of vehicle body, and is connected to two middle passages reinforcements Between the middle part of longeron 11, middle passage the second web beam 13 is fixedly connected with the bottom of two side walls of middle passage 84, two Middle passage is strengthened longeron 11 and is fixed together by two side walls of middle passage the second web beam 13 and middle passage 84.

Preferably, middle passage the second web beam 13 and the bottom of two side walls of middle passage 84 are fixed together, Two middle passages strengthen the inner side that longeron 11 can be located at two side walls of middle passage 84, the i.e. inside of middle passage 84, and and car The floor of body is concordant.

Middle passage the first web beam 12, middle passage the second web beam 13 and bottom front beam 22 are respectively at two Two middle passages are strengthened longeron 11 before, during and after strengthening longeron 11 and are attached and intensity enhancing by middle passage, are not only electricity The fixed installation of pond case provides strength support, and the width in vehicle body provides the conducting path of a plurality of power.

From the foregoing, it will be observed that in the battery cabinet frame and automobile of the present embodiment, using the bottom frame of battery cabinet frame as car A part for body skeleton is installed in body frame, not only increased a plurality of power extending in different directions in body frame Conducting path, to ensure intensity and the security performance of body frame, and it is shared in vehicle body to expand battery cabinet frame Space, thus improving the battery box number that battery cabinet frame is installed, to improve the course continuation mileage of automobile.

Fig. 4 is the structural representation of the battery cabinet frame of the present invention.As shown in figure 4, the battery cabinet frame bag of the present embodiment Include：

Bottom frame 20, described bottom frame 20 is rectangular frame, two rear portion longerons 82 of its rear portion and body frame It is fixedly connected, its both sides is fixedly connected with the medial wall of two threshold longerons 81 of body frame respectively, described bottom frame 20 Including the first crossbeam extending along vehicle-body width direction and the first longeron extending along length of wagon direction, described battery case passes through Securing member is fixed to described first longeron；With

Middle level framework 40, described middle level framework 40 is and described bottom frame 20 shape identical rectangular frame, described in Layer framework 40 is fixed to the surface of described bottom frame 20 by multiple the first vertical beams 31 vertically extending, described in Layer framework 40 includes second cross beam and the second longeron along the extension of length of wagon direction extending along vehicle-body width direction, described electricity Pond case is fixed to described second longeron by securing member；

The two ends of described first vertical beam 31 are connected with described first crossbeam and second cross beam respectively.

In the battery cabinet frame of the present embodiment, bottom frame 20 as a part for body frame, with body frame 82, two threshold longerons 81 of two rear portion longerons are fixedly connected with.And in order to fully utilize the space in body frame, battery Cabinet frame is usually arranged as the form of multilamellar.

In existing battery cabinet frame, form frame due to employing split type connecting method for each battery case Frame, and the junction point between the fixing point of battery case and framework there is a problem of interfering installing, therefore by battery During case is fixed to battery cabinet frame, need first the battery case of bottom is being fixed to bottom frame, then in bottom Interlayer structure and upper strata framework are assembled successively on framework, then again the battery case on upper strata is fixed to upper strata framework, finally will fill The battery cabinet frame having battery case integrally loads in body frame.

And in the battery cabinet frame of the present embodiment, bottom frame 20 and middle level framework 40 are prolonged by along vehicle-body width direction The crossbeam stretched and the longeron formation rectangular frame extending along length of wagon direction, multiple battery cases are fixed to this rectangle frame simultaneously Frame, therefore, bottom frame 20 and middle level framework 40 are the tower structures that can simultaneously fix multiple battery cases.In assembling, group After dress forms bottom frame 20, multiple battery cases can be fixed to bottom frame 20 simultaneously, to complete the fixation of bottom cell case, Rather than individually assembling framework for each battery case, the assembling of middle level framework 40 is also same step.When being respectively completed bottom frame After the fixed installation of battery case on frame 20 and middle level framework 40, vertically extend by interlayer structure is multiple Middle level framework 40 is fixed to the surface of bottom frame 20 by the first vertical beam 31, and that is, middle level framework 40 is aligned with bottom frame 20, The assembling of multistory frame can be completed.

From the foregoing, it will be observed that the fixed structure of this frame-type of the present embodiment, it is not only simple in structure, operating procedure is simply easy OK, the substantial amounts of operating time can be saved, and due to the structure using frame-type, decrease the quantity of parts, Neng Goushi The lightweight of existing battery cabinet frame.

Further, in the battery cabinet frame of the present embodiment, the fixing point of battery case is located on longeron, and connects two-layer First vertical beam 31 of framework is respectively positioned on crossbeam with the junction point of two-layer framework that is to say, that the fixing point of battery case and battery Will not interfere with each other between the mount point of cabinet frame, when the upper strata framework 20 of battery case will be provided with and be provided with battery case Middle level framework 40 when being combined, battery case will not produce interference to the installation site of the first vertical beam 31 such that it is able to realize The first layering assembling of battery cabinet frame, the assembling sequence that interlayer connects again, thus improve installation effectiveness.

As shown in figure 4, the battery cabinet frame of the present embodiment further includes：

Upper strata framework 60, described upper strata framework 60 be rectangular frame, its pass through multiple vertically extend second erect Beam 32 is fixed to the top of described middle level framework 40, and described upper strata framework 60 includes the 3rd crossbeam extending along vehicle-body width direction With the 3rd longeron extending along length of wagon direction, described battery case is fixed to described 3rd longeron by securing member；

The lower end of described second vertical beam 32 is connected with described second cross beam；

Alignd with the middle part of described middle level framework 40 in the front end of described upper strata framework 60.

Be can be seen that by Fig. 3 and Fig. 4, the battery cabinet frame of the present embodiment is above the rear of crew module and luggage boot Setting upper strata framework 60, compared with bottom frame 20 and middle level framework 40, upper strata framework 60 is moved rearwards by, and reasonably utilizes car The intraskeletal space of body, further increases the quantity of the battery case that battery cabinet frame can load.

Further, as it was previously stated, described bottom frame 20 further includes forward frame 10, described forward frame 10 is wrapped Include：

Two middle passages strengthen longerons 11, and described middle passage is strengthened longeron 11 and arranged along length of wagon direction, its rear end with The front side surface of described bottom frame 20 is fixedly connected, and described two middle passages reinforcement longerons 11 are separately positioned in vehicle body logical The lower section of two side walls in road 84；

The spacing that described two middle passages are strengthened between longeron 11 is more than or equal to the width of described battery case.

As previously discussed, the battery cabinet frame of the present embodiment pass through forward frame 10 by battery case with its length along vehicle body The mode of length direction is arranged in middle passage, and rear portion by three layers of tower structure, multiple battery cases is arranged on after crew module In space above side and luggage boot, farthest utilize the space in body frame, increase the loading of battery case Quantity, improves the course continuation mileage of vehicle.

Further, due to the structure using frame-type, bottom frame 20 (including forward frame 10), middle level framework 40 with And upper strata framework 60 all can be fixedly connected with battery case respectively, then this three part is connected combination and can achieve battery case The overall package of framework, then will be equipped with the battery cabinet frame of battery case and overall be attached can achieve vehicle body bone with body frame The overall package of frame.

The battery case frame structure of the present embodiment is simple, easy to assembly quick, can save the substantial amounts of operating time, and Due to the structure using frame-type, decrease the quantity of parts, be capable of the lightweight of battery cabinet frame.

Wherein, as shown in figure 5, described first crossbeam includes：

Bottom rear cross beam 21, described bottom rear cross beam 21 is arranged along vehicle-body width direction；With

Bottom front beam 22, described bottom front beam 22 is arranged along vehicle-body width direction, and is located at described bottom rear cross beam 21 front；

Spacing between described bottom rear cross beam 21 and bottom front beam 22 is more than or equal to the two of the width of described battery case Times；

Described first longeron includes：

Two bottom jack stringers 23, described bottom jack stringer 23 is arranged along length of wagon direction, vertical outside each described bottom The rear and front end of beam 23 is connected with the corresponding side end of described bottom rear cross beam 21 and bottom front beam 22 respectively, to form rectangle Framework；With

Longeron 24 in bottom, in described bottom longeron 24 along length of wagon direction arrange, its rear and front end respectively with described Bottom rear cross beam 21 is fixedly connected with the middle part of bottom front beam 22；

In each described bottom jack stringer 23 and described bottom, the spacing between longeron 24 is more than or equal to described battery case Length.

As shown in Figure 5, on bottom frame 20, the length direction of battery case along the width arrangement of vehicle body, in car Two battery cases can be arranged on the width of body, two battery cases, therefore bottom also can be arranged on the length direction of vehicle body Four battery cases can be fixed on framework 20.

Wherein, in bottom, longeron 24 and one of bottom jack stringer 23 can be and this corresponding side of bottom jack stringer 23 Two battery cases provide mount point, and in bottom, longeron 24 is two batteries of other side together with another bottom jack stringer 23 Case provides mount point, and the mount point of two adjacent battery cases can mutually stagger, to avoid mutually disturbing.

Fig. 7 is the profile of the bottom jack stringer in the present embodiment and its associated connecting structure, as shown in fig. 7, described bottom Layer jack stringer 23 includes：

Bottom jack stringer body 231, it is arranged along length of wagon direction；With

Bottom jack stringer strutbeam 232, it is from the inner surface of described bottom jack stringer body 231 towards described bottom frame 20 inner sides are horizontal-extending, and the upper surface of described bottom jack stringer strutbeam 232 is less than the upper table of described bottom jack stringer body 231 Face, the side base of described battery case is placed on described bottom jack stringer strutbeam 232, and is fixed to described by securing member Bottom jack stringer strutbeam 232.

Bottom jack stringer strutbeam 232 is used for supporting battery case and provides fixing point, bottom jack stringer strutbeam 232 for battery case Upper surface be less than described bottom jack stringer body 231 upper surface, then the side wall of battery case can be against bottom jack stringer body 231 side wall, thus realize spacing to battery case in vehicle-body width direction.

Because bottom jack stringer 23 connects with the threshold longeron 81 of body frame further, therefore, bottom jack stringer 23 enters One step includes：

Bottom jack stringer the second strutbeam 233, it is from the outer surface of described bottom jack stringer body 231 towards described threshold Longeron 81 is horizontal-extending, and the side base of threshold longeron 81 is installed on bottom jack stringer the second strutbeam 233 by securing member.

Wherein, bottom jack stringer the second strutbeam 233 is the hollow beam that inside has cavity, and it includes：

Bottom jack stringer the second strutbeam upper surface 2331, it is from the outer surface of described bottom jack stringer body 231 along water Square to extension, surface has threshold longeron installing hole 2331a, and securing member is coordinated with threshold longeron installing hole 2331a, by threshold Longeron 81 is fixed to bottom jack stringer the second strutbeam upper surface 2331；With

Bottom jack stringer the second strutbeam lower surface 2332, it is from the outer surface of described bottom jack stringer body 231 along water Square to extension, and it is located at the lower section of bottom jack stringer the second strutbeam upper surface 2331.Bottom jack stringer the second strutbeam lower surface Form hollow cavity between 2332 and bottom jack stringer the second strutbeam upper surface 2331.Bottom jack stringer the second strutbeam lower surface 2332 surfaces have threshold longeron via 2332a, and securing member is accommodated in this hollow cavity, and threshold longeron via 2332a is tight The operation of firmware provides working place.Wherein, bottom jack stringer the second strutbeam lower surface 2332 can be with bottom jack stringer body 231 Lower surface concordant.

Further, because securing member is coordinated with bottom jack stringer the second strutbeam upper surface 2331, and bottom jack stringer Two strutbeam upper surfaces 2331 mainly provide the support to threshold longeron 81, therefore, bottom jack stringer the second strutbeam upper surface 2331 Thickness be more than bottom jack stringer the second strutbeam lower surface 2332 thickness.

Fig. 8 is the structural representation of longeron in bottom.As shown in figure 8, longeron 24 includes in bottom：

Longeron body 241 in bottom, it is arranged along length of wagon direction；With

Longeron strutbeam 242 in two bottoms, its respectively from bottom a side surface of longeron body 241 towards described in one Bottom jack stringer 23 is horizontal-extending, and in described bottom, the upper surface of longeron strutbeam 242 is less than longeron body 241 in described bottom Upper surface, the side base of described battery case is placed on longeron strutbeam 242 in described bottom, and is fixed to by securing member Longeron strutbeam 242 in described bottom.

Because in bottom, longeron 24 needs the battery case for both sides to provide mount point, therefore it has longeron in two bottoms Strutbeam 242, in bottom, the effect of longeron strutbeam 242 is identical with bottom jack stringer strutbeam 232 with structure, will not be described here.By In bottom, longeron strutbeam 242 and bottom jack stringer strutbeam 232 provide mount point for battery case jointly, and therefore in bottom, longeron props up Beam 242 and bottom jack stringer strutbeam 232 are located in same level.

In addition, as shown in figure 5, the first longeron can further include two base layer support longerons 25, each base layer support is indulged Beam 25 extends along length of wagon direction, and in a bottom jack stringer 23 and bottom, the centre position between longeron 24, is used for There is provided for it in the lower section of battery case and support.

Further, the position of each base layer support longeron 25 can be corresponding with the position of a rear portion longeron 82, thus being Rear impact force from tailstock direction provides an other bang path being transferred directly to headstock direction.

Fig. 9 a and Fig. 9 b is the structural representation of bottom front beam and sectional view in the present embodiment.As Fig. 9 a and Fig. 9 b institute Show, bottom front beam 22 includes：

Bottom front beam body 221, it is arranged along vehicle-body width direction, has two bottom front beam bodies below and props up Support beam 2211, corresponds respectively to the front side surface of bottom front beam body 221 and the position of rear side surface；

Bottom front beam strutbeam 222, it is horizontal-extending from the front side surface of bottom front beam body 221, including from this bottom The bottom front beam strutbeam support beam 2221 that the front side edge of layer front beam strutbeam 222 extends straight down, bottom front beam strutbeam 222 is concordant with the lower surface of bottom front beam body 221；With

Strutbeam 223 installed by bottom front beam, and it is above bottom front beam strutbeam 222 from bottom front beam body 221 Front side surface horizontal-extending, including from this bottom front beam install strutbeam 223 front side edge extend to straight down before bottom Strutbeam support beam 2231 installed by the bottom front beam of crossbeam strutbeam 222.

Bottom front beam 22 is located at the front end of bottom frame 20, and it is used for being connected with forward frame 10 and body platform. Wherein, bottom front beam strutbeam 222 provides the connection mount point with body platform and forward frame 10, and bottom front beam is installed Strutbeam 223 provides fixed installation point for the battery case being fixed in forward frame 10.Therefore, as illustrated in fig. 9, bottom front beam Installing strutbeam 223 provides battery case mount point 2232 in the middle, and its two ends has and avoids breach 2233, for for anterior frame Two middle passages of frame 10 strengthen longeron 11 provides positioning and installation site.

Figure 10 is the structural representation of the bottom rear cross beam in the present embodiment.As shown in Figure 10, bottom rear cross beam 21 is along car Body width is arranged, and it is connected along two rear portion longerons 82 that length of wagon direction is arranged with body tail assembly.Wherein, Bottom rear cross beam 21 includes：

Bottom rear cross beam body 211, it is arranged along vehicle-body width direction；

Two bottom rear cross beam strutbeams 212, bottom rear cross beam strutbeam 212 is from the rear side surface of bottom rear cross beam body 211 End horizontal-extending towards rear portion longeron 82, the position of each bottom rear cross beam strutbeam 212 and the position of a rear portion longeron 82 Put correspondence；

The front end of each rear portion longeron 82 is fixed to the upper surface of a bottom rear cross beam strutbeam 212.Bottom rear cross beam props up Beam 212 provides fixed installation point for rear portion longeron 82.

In order to realize stable connection, bottom rear cross beam 21 further includes：

Two rear portion longeron support beams 213, each rear portion longeron support beam 213 is from the rear side of bottom rear cross beam body 211 Surface is horizontal-extending towards rear portion longeron 82, supports this rear portion longeron 82 from the bottom of rear portion longeron 82.Rear portion longeron support beam 213 can be fixedly connected with the bottom of rear portion longeron 82 by securing member further.

Specifically, Figure 11 is the side cutaway view of the bottom rear cross beam in the present embodiment, and Figure 12 is the bottom in the present embodiment The rear pseudosection of layer rear cross beam, as is illustrated by figs. 11 and 12, rear portion longeron support beam 213 is hollow cylinder, and it includes：

Support beam upper surface 2131, the bottom of support beam upper surface 2131 laminating rear portion longeron 82；With

Support beam lower surface 2132, it is spaced relative, support beam lower surface 2132 and supporting with support beam upper surface 2131 Beam upper surface 2131 forms the hollow cavity of rear portion longeron support beam 213；

Support beam upper surface 2131 has multiple support beam installing hole 2131a, and rear portion longeron 82 is by installing with support beam The support beam securing member 2131b of hole 2131a cooperation is fixedly connected with support beam upper surface 2131；

Support beam lower surface 2132 has multiple support beam via 2132as corresponding with support beam installing hole 2131a position, Support beam securing member 2131b self-supporting beam via 2132a is stretched in this hollow cylinder, to be joined with support beam installing hole 2131a Close, the end of support beam securing member 2131b is accommodated in this hollow cylinder, and support beam via 2132a can fasten for support beam Part 2131b provides working place, and support beam securing member 2131b is incorporated in hollow cylinder and ensure that aesthetic property and safety Property.

As shown in Figure 10, body tail assembly also includes two rear portion vertical beams 83 along the setting of bodywork height direction, each The bottom of rear portion vertical beam 83 is fixed to the upper surface of a bottom rear cross beam strutbeam 212.

Figure 12 is the rear pseudosection of the bottom rear cross beam in the present embodiment, in conjunction with shown in Figure 11 and Figure 12, horizontal after bottom Beam strutbeam 212 includes：

Strutbeam upper surface 2121, it is horizontally extending from the rear side surface of bottom rear cross beam body 211；

Strutbeam lower surface 2122, it is horizontally extending from the rear side surface of bottom rear cross beam body 211；With

Strutbeam side surface 2123, it is connected between strutbeam upper surface 2121 and strutbeam lower surface 2122, to form hollow Cavity.

Wherein, strutbeam upper surface 2121 has multiple installing hole 2121a, rear portion longeron 82 and rear portion vertical beam 83 by with institute The securing member 2121b stating installing hole 2121a cooperation is fixedly connected with strutbeam upper surface 2121；

Strutbeam lower surface 2122 has multiple via 2122a, the position pair of the position of via 2122a and installing hole 2121a Should, securing member 2121b stretches in hollow cavity from via 2122a, to coordinate with installing hole 2121a.The end of securing member 2121b Portion is accommodated in this hollow cavity.

Further, bottom rear cross beam body 211 is hollow cross, further includes two rear cross beam reinforcements inside it 2111, two rear cross beam reinforcements 2111 are horizontally extending, its position and strutbeam upper surface 2121 and strutbeam lower surface 2122 position corresponds to.

In conjunction with shown in Fig. 5, for connecting the first vertical beam 31 and the bottom frame 20 of bottom frame 20 and middle level framework 40 Junction point is respectively positioned on first crossbeam.For example, the two ends of bottom rear cross beam 21 and point midway, and the two of bottom front beam 22 End and point midway.Because mutually being staggered with the battery case mount point on the first longeron in these positions, electricity therefore can be avoided Pond case is for the impact of interlayer attended operation.

Further, in order to realize the stable support of multistory frame, extend along vehicle-body width direction in bottom frame 20 Midline position at may also set up the junction point of multiple first vertical beams 31, i.e. the point midway of two bottom jack stringers 23, and In bottom longeron 24 point midway it should be noted that these junction points be arranged at bottom jack stringer body 231 or On longeron body 241 in bottom, it is installed with the battery case being arranged on longeron 242 in bottom jack stringer strutbeam 232 and bottom Still mutually staggering in the position of point, therefore also can avoid battery case for the impact of interlayer attended operation.

Figure 13 is the top view of the middle level framework 40 in the present embodiment, and as shown in figure 13, described second cross beam includes：

Middle level rear cross beam 41, it is arranged along vehicle-body width direction；With

Middle level front beam 42, it is arranged along vehicle-body width direction, and is located at the front of described middle level rear cross beam 41；

Described second longeron includes：

Two middle level jack stringers 44, it is arranged along length of wagon direction, the rear and front end of each described middle level jack stringer 44 Connect with the corresponding side end of described middle level rear cross beam 41 and middle level front beam 42 respectively, to form rectangular frame；With

Longeron 45 in middle level, its along length of wagon direction arrange, its rear and front end respectively with described middle level rear cross beam 41 and The middle part of middle level front beam 42 is fixedly connected；

In each described middle level jack stringer 44 and described middle level, the spacing between longeron 45 is more than or equal to described battery case Length；

Described second cross beam further includes：

Two middle level middle cross beams 43, it is arranged along vehicle-body width direction, the two ends of each middle level middle cross beam 43 respectively with right Longeron 45 in the described middle level jack stringer 44 of side and middle level is answered to connect；

Spacing between each described middle level middle cross beam 43 and described middle level rear cross beam 41 or middle level front beam 42 is all big In the width equal to described battery case.

As shown in Figure 13, on middle level framework 40, the length direction of battery case along the width arrangement of vehicle body, in car Two battery cases can be arranged on the width of body, two battery cases, therefore middle level also can be arranged on the length direction of vehicle body Four battery cases can be fixed on framework 40.

Wherein, in middle level, longeron 45 and one of middle level jack stringer 44 can be and this corresponding side of middle level jack stringer 44 Two battery cases provide mount point, and in middle level, longeron 45 is two batteries of other side together with another middle level jack stringer 44 Case provides mount point, and the mount point of two adjacent battery cases can mutually stagger, to avoid mutually disturbing.

Because in middle level, longeron 45 is main force-summing element, therefore in middle level, longeron 45 is the structure of integral type, and with The middle level middle cross beam 43 of its midpoint vertical connection is then divided into the structure of two-piece type centered on it.Each middle level middle cross beam 43 is located at Between two adjacent battery cases, its upper surface can be higher than the bottom surface of battery case, thus to battery on the length direction of vehicle body Case plays position-limiting action.

Figure 14 is the sectional view of the middle level jack stringer in the present embodiment, and as shown in figure 14, middle level jack stringer 44 includes：

Middle level jack stringer body 441, it is arranged along length of wagon direction；With

Middle level jack stringer strutbeam 442, it is from the inner surface of middle level jack stringer body 441 towards middle level framework 40 inner side water Flat extension, the upper surface of middle level jack stringer strutbeam 442 is less than the upper surface of middle level jack stringer body 441, the side bottom of battery case While being placed on middle level jack stringer strutbeam 442, and middle level jack stringer strutbeam 442 is fixed to by securing member；

Wherein, middle level jack stringer body 441 and middle level jack stringer strutbeam 442 can be all the hollow beam of hollow, can inside it There are one or more reinforcements that vertically (i.e. the short transverse of vehicle body) extends.

Middle level jack stringer strutbeam 442 is used for supporting battery case and provides fixing point, middle level jack stringer strutbeam 442 for battery case Upper surface be less than middle level jack stringer body 441 upper surface, then the side wall of battery case can be against middle level jack stringer body 441 Side wall, thus realize spacing to battery case in vehicle-body width direction.

Figure 15 is the sectional view of longeron in the middle level in the present embodiment, and as shown in figure 15, in middle level, longeron 45 includes：

Longeron body 451 in middle level, it is arranged along length of wagon direction；With

Longeron strutbeam 452 in two middle levels, its respectively from middle level a side surface of longeron body 451 towards a middle level Jack stringer 44 is horizontal-extending, and in middle level, the upper surface of longeron strutbeam 452 is less than the upper surface of longeron body 451 in middle level, battery The side base of case is placed on longeron strutbeam 452 in middle level, and is fixed to longeron strutbeam 452 in middle level by securing member.

Wherein, in middle level jack stringer 44 and middle level, longeron 45 can be all section bar.By contrasting Figure 14 and Figure 15, middle level Jack stringer 44 lacks longeron body 451 side in middle level with the middle level jack stringer 44 that differs only in of longeron 45 in middle level Longeron strutbeam 452 in one middle level, therefore can by longeron strutbeam 452 in the middle level of the side of longeron in middle level 45 is excised and Obtain middle level jack stringer 44.So, when manufacturing the section bar due to middle level framework 40, the quantity of die sinking can be reduced and reduce into This.

Figure 16 a and Figure 16 b is the structural representation of middle level middle cross beam and sectional view in the present embodiment.As Figure 16 a and figure Shown in 16b, middle level middle cross beam 43 includes：

Middle level middle cross beam body 431, it extends along the width of vehicle body；With

Two middle level middle cross beam strutbeams 432, it extends along the width of vehicle body, each 432 points of middle level middle cross beam strutbeam Not horizontal-extending from a side surface of middle level middle cross beam body 431, the upper surface of middle level middle cross beam strutbeam 432 is less than horizontal stroke in middle level The upper surface of beam body 431, the side base of battery case is placed on middle level middle cross beam strutbeam 432.

Further, the length of middle level middle cross beam body 431 is more than the length of middle level middle cross beam strutbeam 432, horizontal in middle level The two ends of beam body 431 are stretched out from the two ends of middle level middle cross beam strutbeam 432 respectively, and it rides upon on longeron strutbeam 452 in middle level Or on middle level jack stringer strutbeam 442, the end of middle level middle cross beam body 431 against longeron body 451 in middle level side wall or The side wall of person middle level jack stringer body 441, and the end of middle level middle cross beam strutbeam 432 is against the side of longeron strutbeam 452 in middle level Wall or the side wall of middle level jack stringer strutbeam 442.

Similar with longeron, middle level middle cross beam 43, middle level rear cross beam 41 and middle level front beam 42 are section bar, by by middle level One middle level middle cross beam strutbeam 432 of middle cross beam 43 side is excised, and can form middle level rear cross beam 41 or middle level front beam 42, from And achieve the multiplexing of section bar or structure.

Accordingly, in the middle part of the strutbeam of middle level rear cross beam 41 or middle level front beam 42, there is a breach, for middle level The end of middle longeron 45 connects.

For connecting the first vertical beam 31 of bottom frame 20 and middle level framework 40 and the position of the junction point of middle level framework 40 Corresponding with the position of bottom frame 20, and the structure of middle level framework 40 and position corresponding with bottom frame 20, therefore interlayer connect The installation of the battery case for middle level framework 40 for the structure also will not constitute impact.

Figure 17 a and Figure 17 b is structural representation and the sectional view of the first vertical beam 31.As shown in Figure 17 a and Figure 17 b, it is used for Connect bottom frame 20 and the interlayer attachment structure of middle level framework 40 includes：

First vertical beam 31, the end of the first vertical beam 31 is connected with bottom frame 20 and middle level framework 40 respectively, the first vertical beam 31 include：

Column jacket beam 311, column jacket beam 311 is the cylindrical body of the hollow vertically extending；With

Installation portion 312, installation portion 312 is the cylindrical body in the hollow cavity of end being arranged on column jacket beam 311, and first erects Beam 31 is connected with bottom frame 20 and middle level framework 40 by this installation portion 312.

Installation portion 312 is only located at the end of column jacket beam 311, its length be much smaller than column jacket beam 311 length, for fastening Part coordinates.

Wherein, the first vertical beam 31 can be square column type or cylinder, in order to provide the outer wall surface being easy to connect, preferably Ground, the cross section of column jacket beam 311 is rectangle or square.In addition, for the ease of being attached with securing member, the horizontal stroke of installation portion 312 Section is circle.

Preferably, the first vertical beam 31 further includes：

Multiple reinforcements 313, reinforcement 313 is connected between the inwall of column jacket beam 311 and the outer wall of installation portion 312, many Individual reinforcement 313 is arranged at equal intervals.

Wherein, one end of each reinforcement 313 is connected with the end angle of the inwall of column jacket beam 311, or with column jacket beam 311 The midpoint of medial wall connects, for providing fixed position and strength support for installation portion 312.

Specifically, installation portion 312 is the cylindrical body of hollow, and installation portion 312 further includes steel-wire screw-socket (not shown), steel Silk swivel nut be nested in the hollow cavity of installation portion 312, for appended claims.

In order to strengthen the support strength of the first vertical beam 31, prevent it from shaking when vehicle body is mobile, in conjunction with shown in Fig. 4, This interlayer attachment structure further includes：

Multiple first vertical beam buttress braces 34, the first vertical beam buttress brace 34 be obliquely connected to the first vertical beam 31 lateral wall and Between bottom frame 20.Each first vertical beam 31 can arrange two the first vertical beam buttress braces 34, when the first vertical beam 31 and bottom frame When the point midway of one beam of frame connects, two the first vertical beam buttress braces 34 can be with two relative outsides of the first vertical beam 31 Wall connects；When the first vertical beam 31 is connected with the end of a beam of bottom frame, one or two the first vertical beam buttress brace 34 Lateral wall that can be adjacent with a lateral wall of the first vertical beam 31 or two connects.

Figure 18 is the top view of the upper strata framework in the present embodiment.As shown in figure 18, in upper strata framework 60, the 3rd crossbeam Including：

Upper strata rear cross beam 61, upper strata rear cross beam 61 is arranged along vehicle-body width direction；

Upper strata front beam 62, upper strata front beam 62 is arranged along vehicle-body width direction, and is located at the front of upper strata rear cross beam 61；

3rd longeron includes：

Two upper strata longerons 64, it is arranged along length of wagon direction, the rear and front end of each upper strata longeron 64 respectively with upper The corresponding side end of layer rear cross beam 61 and upper strata front beam 62 connects, to form rectangular frame；

Spacing between two upper strata longerons 64 is more than or equal to the length of battery case；

3rd crossbeam further includes：

Upper strata middle cross beam 63, it is arranged along vehicle-body width direction, and be located at upper strata rear cross beam 61 and upper strata front beam 62 it Between, the two ends of upper strata middle cross beam 63 are connected with the middle part of two upper strata longerons 64 respectively；

Spacing between upper strata middle cross beam 63 and upper strata rear cross beam 61 or upper strata front beam 62 is all higher than equal to battery case Width.

As shown in Figure 18, on upper strata framework 60, the length direction of battery case along the width arrangement of vehicle body, in car One battery case can be arranged on the width of body, two battery cases, therefore upper strata frame can be arranged on the length direction of vehicle body Two battery cases can be fixed on frame 60.

Wherein, two upper strata longerons 64 provide mount point for battery case, and the mount point of two battery cases can mutually stagger, with Avoid mutually disturbing.

The structure of upper strata longeron 64 is identical with the structure of middle level jack stringer 44, in the structure of upper strata middle cross beam 634 and middle level The structure of crossbeam 43 is identical, the structure of upper strata rear cross beam 61 and upper strata front beam 62 and middle level rear cross beam 41 and middle level front beam 42 Structure identical, will not be described here.

The front end of upper strata framework 60, that is, upper strata front beam 62 is corresponding with the position of middle level middle cross beam 43, upper strata framework 60 Midline position is corresponding with the midline position of middle level framework 40.Therefore, the rear end of upper strata framework 60, that is, upper strata rear cross beam 61 is in vehicle body Position on length direction is located at the rear of the middle level rear cross beam 41 of middle level framework 40, and upper strata rear cross beam 61 passes through the second cant beam 33 It is connected with the rear portion of middle level framework 40.One end of second cant beam 33 is connected with middle level rear cross beam 41, the other end and upper strata rear cross beam 61 connections.

Further, as shown in figure 18, the 3rd longeron further includes：

Two upper strata jack stringers 65, it is arranged along length of wagon direction, and each upper strata jack stringer 65 is fixed to a upper strata The outside of longeron 64, the top of the second vertical beam 32 is connected with upper strata jack stringer 65.The structure of the second vertical beam 32 and the first vertical beam 31 Structure identical, will not be described here.

As shown in Figure 4 and Figure 6, bottom frame 20 further includes forward frame 10, and described forward frame 10 includes：

Two middle passages strengthen longeron 11, and middle passage is strengthened longeron 11 and arranged along length of wagon direction, and two middle passages add Strong longeron 11 is separately positioned on the lower section of two side walls of middle passage 84 of vehicle body；With

Middle passage the second web beam 13, its along the width setting of vehicle body, middle passage the second web beam 13 with The bottom of two side walls of passage 84 is fixedly connected, and is connected between the middle part that two middle passages strengthen longerons 11, with Two middle passages are strengthened longeron 11 and are formed two rectangular frames together, and battery case is installed on this two rectangular frames, in two Passage is strengthened longeron 11 and is linked together by the bottom of middle passage the second web beam 13 and two side walls of middle passage 84.

Figure 19 a and Figure 19 b is the structural representation of middle passage second web beam and sectional view in the present embodiment, such as schemes Shown in 19a and 19b, middle passage the second web beam 13 includes：

First tie-beam 131, it includes：Along the first level portion 1311 of vehicle-body width direction setting, along first level portion Two the first supporting parts 1312 that 1311 two sides extend straight down, and the lower surface from first level portion 1311 is vertical Two the first vertical portions 1313 extending downwardly, two the first vertical portions 1313 are with regard to the central axis pair in first level portion 1311 Claim setting；With

Second tie-beam 132, it includes：Along the second horizontal part 1321 of vehicle-body width direction setting, with along the second level Two sides in portion 1321 extend to two second supporting parts 1322 in first level portion 1311, the second horizontal part straight down 1321 central axis is corresponding with the axial centerline in first level portion 1311.

Wherein, the position of two the second supporting parts 1322 is corresponding with the position of two the first vertical portions 1313.

Further, the second tie-beam 132 includes：

Two the second ribs 1323, the second rib 1323 is arranged in first level portion 1311, and respectively with two The outer surface of individual second supporting part 1322 connects,

The upper surface of the second rib 1323 is less than the second horizontal part 1321.

In conjunction with shown in Fig. 4, battery case is fixed to the upper surface of the second rib 1323, and the side wall of battery case is against second The outer surface of support part 1322.The length of the second tie-beam 132 is less than the length of the first tie-beam 131, the first tie-beam 131 Two ends are stretched out from below the two ends of the second tie-beam 132, and two middle passages are strengthened longeron 11 and are arranged in first level portion 1311, The two ends of the second tie-beam 132 bear against the inner side that two middle passages strengthen longeron 11.First level portion 1311 have for It is connected the installing hole of cooperation with middle passage 84, for middle passage the second web beam 13 and middle passage 84 are linked together, from And two middle passages are strengthened longeron 11 and links together with the two bottom sides of middle passage 84.Wherein, it is connected with middle passage 84 and join The installing hole closing can be located at the outside that two middle passages strengthen longeron 11, i.e. middle passage the second web beam 13 and middle passage 84 The bottom of two side walls be fixed together, two middle passages strengthen two side walls that longeron 11 can be located at middle passage 84 Inner side, i.e. the inside of middle passage 84, and concordant with the floor of vehicle body.

As shown in fig. 19b, the first level portion 1311 of the first tie-beam 131 is used for supporting two middle passages to strengthen longeron 11, the second rib 1323 of the second tie-beam 132 is used for supporting and self-contained battery case, the therefore support in first level portion 1311 Intensity should be much larger than the support strength of the second rib 1323, and therefore, the thickness in first level portion 1311 is more than the second reinforcement The thickness in portion 1323.

In conjunction with shown in Fig. 4 and Figure 20, forward frame 10 further includes middle passage the first web beam 12, middle passage first Along the width setting of vehicle body, it is connected to two middle passages and strengthens between the front end of longeron 11 web beam 12, its two ends It is connected with a floor front beam 86 of vehicle body respectively,

Middle passage the first web beam 12 includes：

3rd tie-beam 121, it includes：Along the 3rd horizontal part 1211 of vehicle-body width direction setting, along the 3rd horizontal part Two the 3rd supporting parts 1212 that 1311 two articles of sides extend straight down, and vertical from the lower surface of the 3rd horizontal part 1211 The 3rd vertical portion 1213 extending downwardly；With

4th tie-beam 122, it includes：Along the 4th horizontal part 1221 of vehicle-body width direction setting, with along the 4th level Two articles of sides in portion 1221 extend to two the 4th supporting parts 1222 of the 3rd horizontal part 1211 straight down, and one of them the 4th The position of supporting part 1222 is corresponding with the position of the 3rd supporting part 1212, the position of another the 4th supporting part 1222 and the The position of three vertical portions 1213 corresponds to.

The front end of two middle passage reinforcement longerons 11 is fixed to the 3rd horizontal part 1211, and the 3rd horizontal part 1211 has further There is the installing hole for being connected cooperation with two floor front beams 86, for by middle passage the first web beam 12 and two floors Front beam 86 links together, thus two middle passages are strengthened longeron 11 linking together with two floor front beams 86.

Preferably, the 4th tie-beam 122 further includes：

4th rib 1223, the 4th rib 1223 is arranged on the 3rd horizontal part 1211, and with another the 4th The outer surface of support part 1222 connects, and the upper surface of the 4th rib 1223 is less than the 4th horizontal part 1221.

Therefore, battery case is fixed to the upper surface of the 4th rib 1223, and the side wall of battery case is against another the 4th The outer surface of support part 1222.

Visible in conjunction with Figure 19 b and Figure 20, middle passage the first web beam 12 can pass through middle passage the second web beam 13 The part in first vertical portion 1313 outside of the first tie-beam 131 and corresponding second rib 1323 excise and obtain Arrive, therefore, middle passage the first web beam 12 and middle passage the second web beam 13 can achieve the multiplexing of structure.

In the forward frame 10 of the present embodiment, the fixing point of battery case is arranged at middle passage the first web beam 12 He On middle passage the second web beam 13, middle passage is strengthened longeron 11 and is propped up for the intensity of passage in strengthening and for battery case offer Support and spacing.

In the battery cabinet frame of the present embodiment, the attachment structure all same of any one beam in battery case and framework, Therefore Figure 21 and Figure 22 shows the attachment structure of battery cabinet frame and battery case with general structure.As shown in figs. 21 and 22, Four ends angle of the bottom of battery case 90 is respectively provided with the groove 91 within towards battery case, has and stretch to battery case in groove 91 Fastener receptacles 911 within 90；

Battery cabinet frame includes surrounding and forms the Vierendeel girder 50 of rectangular frame (Vierendeel girder 50 refers to formation battery box-frame herein Longeron 45 etc. in any one Vierendeel girder of frame, such as bottom jack stringer 23, middle level), battery case 90 is fixed to rectangular frame, frame Set a roof beam in place and 50 include：

Vierendeel girder body 51, Vierendeel girder body 51 extends along the width of vehicle body or length direction；

Vierendeel girder strutbeam 52, it is from Vierendeel girder body 51 towards a side surface of battery case 90 towards battery case 90 level Extend, the bottom of battery case 90 is placed on Vierendeel girder strutbeam 52；With

Battery case securing member 53, Vierendeel girder strutbeam 52 is fixedly connected by battery case securing member 53 with battery case 90, battery case Securing member 53 is coordinated with fastener receptacles 911.

Wherein, groove 91 has the groove top surface 912 parallel with the bottom surface of battery case 90, and attachment structure further includes：

Battery case fastener sleeve 54, against groove top surface 912, bottom is against frame on the top of battery case fastener sleeve 54 Set a roof beam in place strutbeam 52, battery case securing member 53 passes through from battery case fastener sleeve 54.Battery case fastener sleeve 54 is supported on Between groove top surface 912 top surface of Vierendeel girder strutbeam 52 and battery case, for improving the fixed performance of battery case securing member 53.

In the present embodiment, the end angle of battery case 90 has recessed groove 91 internal towards battery case, due to accommodating electricity Pond case securing member 53, so, battery case securing member 53 take be spatially located inside battery case, rather than as existing securing member that Sample is located at the outside of battery case, therefore, it is possible to reduce the overall space required for self-contained battery case.Vierendeel girder strutbeam 52 is due to propping up The base of support battery case 90, that is, the marginal portion not having groove 91 of battery case 90 such that it is able to provide stable for battery case 90 Support.Battery case securing member 53 is coordinated with the fastener receptacles 911 stretching within battery case, inside provides to three simultaneously The length direction of spacing vehicle body in direction, width and short transverse.

Wherein, Vierendeel girder strutbeam 52 is the hollow beam with hollow cavity, and it includes：

Vierendeel girder strutbeam upper surface 521, the bottom of its laminating battery case 90；With Vierendeel girder strutbeam lower surface 522, itself and frame Strutbeam upper surface 521 of setting a roof beam in place is spaced relatively.

Vierendeel girder strutbeam upper surface 521 has Vierendeel girder strutbeam via 5211, and Vierendeel girder strutbeam lower surface 522 has framework Beam strutbeam installing hole 5222, battery case fastener sleeve 54 passes through from Vierendeel girder strutbeam via 5211, and its bottom is in hollow cavity Interior against Vierendeel girder strutbeam lower surface 522, the end 531 of battery case securing member 53 from hollow cavity outer against under Vierendeel girder strutbeam Surface 522, passes through Vierendeel girder strutbeam installing hole 5222 to limit it.

In the present embodiment, Vierendeel girder strutbeam upper surface 521 is used for supporting battery case 90, and Vierendeel girder strutbeam lower surface 522 are used for coordinating with battery case securing member 53, for providing the support strength to battery case securing member 53 and battery case 90, because This, the thickness of Vierendeel girder strutbeam upper surface 521 is less than the thickness of Vierendeel girder strutbeam lower surface 522.

Preferably, Vierendeel girder strutbeam upper surface 521 is less than the upper surface of Vierendeel girder body 51, the side wall of battery case 90 against A side surface towards battery case 90 of Vierendeel girder body 51.By two highly different parts, Vierendeel girder 50 can not only There is provided for battery case 90 and support and mount point, provide position-limiting action for battery case 90 simultaneously.

Further, Vierendeel girder body 51 is hollow beam, further includes inside it：

Two Vierendeel girder reinforcements 511, it is horizontally extending, and with Vierendeel girder strutbeam upper surface 521 and framework The position of beam strutbeam lower surface 522 corresponds to, for being Vierendeel girder strutbeam upper surface 521 and Vierendeel girder strutbeam lower surface 522 provides Strength support.

The attachment structure that structure according to above battery cabinet frame and battery cabinet frame are connected with battery case, this enforcement The installation method of the battery cabinet frame of example is as shown in figure 23.

This installation method includes：

Step 100：Respectively battery case is fixed to bottom frame 20, middle level framework 40；

Step 200：By the two ends of the first vertical beam 31 respectively with install battery case bottom frame 20 first crossbeam and The second cross beam installing the middle level framework 40 of battery case connects.

Further, further include between step 100 and step 200：

Step 110：Battery case is fixed to upper strata framework 60；

Further include after step 200：

Step 210：By the two ends of the second vertical beam 32 respectively with install battery case middle level framework 40 second cross beam and The upperside frame 60 installing battery case connects.

In the battery cabinet frame of the present embodiment, the fixing point due to battery case is located on longeron, and connects two-layer framework The junction point of the first vertical beam 31 and two-layer framework be respectively positioned on crossbeam that is to say, that the fixing point of battery case and battery box-frame Will not interfere with each other between the mount point of frame, when the upper strata framework 20 of battery case will be provided with and be provided with battery case When layer framework 40 is combined, battery case will not produce interference such that it is able to realize battery to the installation site of the first vertical beam 31 The first layering assembling of cabinet frame, the assembling sequence that interlayer connects again, thus improve installation effectiveness.

And when upper strata framework 60 and middle level framework 40 are combined, the second vertical beam 32 is same with the mount point of middle level framework 40 Will not interfere with each other between the fixing point of the battery case on sample and middle level framework 40, and the mount point of upper strata framework 60 is in place On the upper strata jack stringer 65 in upper strata framework 60 outside, between the mount point of the battery case equally and on upper strata framework 60 has necessarily Away from will not interfere with each other.So, the installation method of the battery cabinet frame of the present embodiment can realize battery cabinet frame First layering assembling, the assembling sequence that interlayer connects again, thus improve installation effectiveness.

In another embodiment, can by the battery case frame application in above-described embodiment in the car.Certainly, this electricity Pond cabinet frame how to realize in the car be arranged on above be described in the form of preferred embodiment, this area skill Art personnel can also implement this battery cabinet frame installation in the car otherwise, repeats no more herein.

Herein, " first ", " second " etc. are only used for differentiation each other, rather than represent significance level and order and Premise existing each other etc..

Herein, " one " is not offered as being limited to " only this " quantity of relevant portion of the present invention, and " one Individual " do not indicate that the situation of the quantity " more than one " excluding relevant portion of the present invention.

Unless otherwise stated, numerical range herein not only includes the gamut in two end points, also includes containing In some subranges therein.

The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically Bright, and and be not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or Change, such as combination, segmentation or the repetition of feature, should be included within the scope of the present invention.

Claims (8)

1. a kind of battery cabinet frame and battery case attachment structure it is characterised in that

Four ends angle of the bottom of described battery case (90) is respectively provided with the groove (91) within towards battery case, described groove (91) Inside have and stretch to the internal fastener receptacles (911) of described battery case (90)；

Described battery cabinet frame includes surrounding the Vierendeel girder (50) forming rectangular frame, and described battery case (90) is fixed to described square Shape framework, described Vierendeel girder (50) includes：

Vierendeel girder body (51), described Vierendeel girder body (51) extends along the width of vehicle body or length direction；

Vierendeel girder strutbeam (52), it is from the side surface towards described battery case (90) of described Vierendeel girder body (51) towards institute State that battery case (90) is horizontal-extending, the bottom of described battery case (90) is placed on described Vierendeel girder strutbeam (52)；With

Battery case securing member (53), described battery case securing member (53) will be fixing to described Vierendeel girder strutbeam (52) and battery case (90) Connect, described battery case securing member (53) is coordinated with described fastener receptacles (911).

2. attachment structure as claimed in claim 1 it is characterised in that

Described groove (91) has the groove top surface (912) parallel with the bottom surface of described battery case (90),

Described attachment structure further includes：

Battery case fastener sleeve (54), the top of described battery case fastener sleeve (54) against described groove top surface (912), Bottom is worn from described battery case fastener sleeve (54) against described Vierendeel girder strutbeam (52), described battery case securing member (53) Cross.

3. attachment structure as claimed in claim 2 is it is characterised in that described Vierendeel girder strutbeam (52) is to have hollow cavity Hollow beam, it includes：

Vierendeel girder strutbeam upper surface (521), the bottom of its described battery case (90) of fitting；With

Vierendeel girder strutbeam lower surface (522), it is relative with described Vierendeel girder strutbeam upper surface (521) interval.

4. attachment structure as claimed in claim 3 it is characterised in that

Described Vierendeel girder strutbeam upper surface (521) has Vierendeel girder strutbeam via (5211)；

Described Vierendeel girder strutbeam lower surface (522) has Vierendeel girder strutbeam installing hole (5222), described battery case fastener sleeve (54) pass through from described Vierendeel girder strutbeam via (5211), its bottom is in described hollow cavity against under described Vierendeel girder strutbeam Surface (522), the end (531) of described battery case securing member (53) from described hollow cavity outer against under described Vierendeel girder strutbeam Surface (522), passes through described Vierendeel girder strutbeam installing hole (5222) to limit it.

5. attachment structure as claimed in claim 4 is it is characterised in that the thickness of described Vierendeel girder strutbeam upper surface (521) is little Thickness in described Vierendeel girder strutbeam lower surface (522).

6. attachment structure as claimed in claim 4 is it is characterised in that described Vierendeel girder strutbeam upper surface (521) is less than described The upper surface of Vierendeel girder body (51), the side wall of described battery case (90) is against described Vierendeel girder body (51) towards described electricity One side surface of pond case (90).

7. attachment structure as claimed in claim 3 is it is characterised in that described Vierendeel girder body (51) is hollow beam, inside it Further include：

Two Vierendeel girder reinforcements (511), it is horizontally extending, and with described Vierendeel girder strutbeam upper surface (521) and The position of Vierendeel girder strutbeam lower surface (522) corresponds to.

8. a kind of automobile it is characterised in that include battery cabinet frame as described in any claim in claim 1 to 7 and The attachment structure of battery case.