CN209112301U - A kind of aftercarriage lower component - Google Patents

Abstract

The utility model discloses a lower part assembly of a rear vehicle body, comprising a rear floor assembly, a rear frame assembly and a rear end plate assembly. The rear floor assembly comprises a rear floor body, and a rear floor beam and a connecting plate are fixedly connected to On the front floor, the rear frame assembly includes a rear floor beam 1 and a rear frame, the rear floor beam 1 is fixedly connected to the rear frame, and the rear floor beam 1 and the rear frame are both fixedly connected to the The lower part of the rear floor body, the rear floor beam-connecting plate, the rear floor beam 1 and the rear floor body are surrounded by a rear floor beam-cavity, and the X-direction length of the rear floor beam-cavity is greater than or equal to 80mm, so The upper part of the connecting plate of the rear floor beam is provided with a ground slide rail installation point. A ground slide rail installation point is arranged on the length of the cavity length of the X-direction rear floor beam of the lower assembly of the rear vehicle body of the utility model, which is used for the Z-direction installation of the ground slide rail of the second row seat, and is compatible with ordinary seat rails. .

Description

A rear body lower assembly

technical field

The utility model relates to a vehicle body technology, in particular to a lower part assembly of a rear vehicle body.

Background technique

The existing lower body assembly of the rear body includes a rear floor assembly, a rear end panel assembly and a rear frame assembly. The lower body assembly of the rear body has some deficiencies: (1) Rear floor beam 1 01 and rear floor beam 1 connecting plate 02 The X-direction dimension M of the formed cavity is small (<60mm). As shown in Figures 1 and 2, the cavity is small and can only provide ordinary rail installation in the X-direction, but cannot provide ground rail installation points in the Z-direction. Various seats Poor installation compatibility reduces the quality and comfort of passenger cars; (2) The spare tire is arranged in the car, occupying luggage space, and it is not convenient for the loading and unloading of the spare tire; (3) There is no battery installation point, and later models cannot be hybridized Upgrading or not being able to choose the hybrid configuration, the products are not abundant, and the customer's choice is narrow, resulting in weak product competitiveness; (4) As shown in Figure 3 and Figure 4, the rear end plate 03 and the end of the rear beam 04 are only unilaterally connected. The rear plate cavity and the girder cavity are staggered in the Z direction, the cavity is not connected, the tailgate frame has a low mode, and the NVH noise is large.

Utility model content

The utility model is completed in order to solve the deficiencies in the prior art, and the purpose of the utility model is to provide a lower part of the rear vehicle body, the advantage of which is that the X-direction rear floor beam-cavity length is provided with a ground slide rail The installation point is used for the Z-direction installation of the floor rails of the second-row seats, and is compatible with the rear floor beams of ordinary seat rails.

A rear body lower assembly of the present invention comprises a rear floor assembly, a rear frame assembly and a rear end plate assembly, wherein the rear frame assembly is fixedly connected to the bottom of the rear floor assembly, and the The rear end plate assembly is fixedly connected to the rear of the rear floor assembly, the rear end of the rear frame assembly is fixedly connected to the rear end plate assembly, and the rear floor assembly includes a rear floor body, a rear floor A cross member connecting plate is fixedly connected to the front floor, the rear frame assembly includes a rear floor cross member 1 and a rear frame, the rear floor cross member 1 is fixedly connected to the rear frame, the rear floor cross member 1 and the rear frame The beams are all fixedly connected to the lower part of the rear floor body, the rear floor beam-connecting plate, the rear floor beam 1 and the rear floor body enclose a rear floor beam-cavity, and the rear floor beam-a cavity is formed. The X-direction length of the cavity is greater than or equal to 80 mm, and a ground slide rail installation point is arranged on the upper part of the connecting plate of the rear floor beam.

A rear vehicle body lower assembly of the present utility model can also be:

A spare tire mounting plate is detachably and fixedly connected to the upper rear end of the rear floor body, a spare tire cavity is surrounded between the spare tire mounting plate and the lower part of the rear floor body, and the spare tire is detachably fixed to the Below the rear floor body below the spare tire cavity.

The spare tire mounting plate is provided with an opening, and the spare tire lifter is worn downward through the opening and is detachably and fixedly connected with the spare tire.

A spare tire winch mounting plate is detachably and fixedly connected to the right part of the rear end of the rear floor body, and a spare tire cable is detachably and fixedly connected to the spare tire winch mounting plate. The spare tire lifter is connected, and the end of the spare tire cable is detachably and fixedly connected with the spare tire.

The left side of the rear end of the rear floor body is provided with an inner battery installation bracket, an outer battery installation front bracket and a battery installation outer rear bracket arranged in parallel, the battery installation inner bracket and the battery installation outer front bracket, the battery installation The outer and rear mounting brackets are arranged in parallel and have a planar shape in the shape of a zigzag. The battery mounting inner bracket, the top of the battery mounting outer front bracket and the top of the battery mounting outer rear bracket are all detachably and fixedly connected with the BSG power battery.

A refrigeration pipe is formed between the inner battery installation bracket, the outer front bracket for battery installation, and the outer rear bracket for battery installation, and the refrigeration pipe runs upward from the bottom of the rear floor body.

The battery installation inner bracket, the battery installation outer front bracket, and the battery installation outer rear bracket are provided with at least one battery installation hole in the upper part.

The longitudinal cross section of the battery mounting inner bracket is a zigzag shape, the left and right sides of the battery mounting inner bracket are respectively provided with inner bracket flanges, and the inner bracket flanges are fixedly connected to the rear floor body.

The longitudinal cross-sectional shapes of the outer front bracket for battery installation and the outer rear bracket for battery installation are all zigzag shapes, front bracket flanges are arranged on both sides of the outer front bracket for battery installation, and two sides of the outer rear bracket for battery installation are arranged with The rear bracket is flanged, the battery installation outer front bracket and the battery installation outer rear bracket are both arranged directly above the rear beam, the rear beam is provided with beam flanges on both sides, and the front bracket is flanged, The rear floor body and the girder flanging are fixedly connected in sequence from top to bottom, and the rear bracket flanging, the rear floor body and the girder flanging are fixed and connected sequentially from top to bottom.

The rear end plate assembly includes a rear end plate outer plate and a rear end plate inner plate, the upper end of the rear end outer plate is fixedly connected with the upper end of the rear end plate inner plate, the rear end plate outer plate and the rear end plate are fixedly connected. A rear end plate cavity is formed between the inner plates of the end plate, the lower end of the inner plate of the rear end plate is fixedly connected with the rear floor body, and a rear beam cavity is formed around the rear beam and the rear floor body. The rear end plate cavity is connected to the rear girder cavity.

A rear body lower assembly of the present invention comprises a rear floor assembly, a rear frame assembly and a rear end plate assembly, wherein the rear frame assembly is fixedly connected to the bottom of the rear floor assembly, and the The rear end plate assembly is fixedly connected to the rear of the rear floor assembly, the rear end of the rear frame assembly is fixedly connected to the rear end plate assembly, and the rear floor assembly includes a rear floor body, a rear floor A cross member connecting plate is fixedly connected to the front floor, the rear frame assembly includes a rear floor cross member 1 and a rear frame, the rear floor cross member 1 is fixedly connected to the rear frame, the rear floor cross member 1 and the rear frame The beams are all fixedly connected to the lower part of the rear floor body, the rear floor beam-connecting plate, the rear floor beam 1 and the rear floor body enclose a rear floor beam-cavity, and the rear floor beam-a cavity is formed. The X-direction length of the cavity is greater than or equal to 80 mm, and a ground slide rail installation point is arranged on the upper part of the connecting plate of the rear floor beam. In this way, the rear frame assembly is connected to the bottom of the rear floor assembly, and the connection can be other connection methods. The rear panel assembly is connected to the rear of the rear floor assembly, and the connection can be other connection methods. The rear end of the rear frame assembly is connected to the rear end plate assembly, and the connection can be other connection methods. The rear floor assembly includes a rear floor body. The rear floor beam-connecting plate is located on the front floor, and plays a connecting role between the front floor and the rear floor assembly, and the connection can be other connection methods. The rear floor beam is horizontally arranged and connected to the bottom of both sides of the front end of the rear floor body, and the rear beam is longitudinally arranged on both sides of the bottom of the rear floor body, wherein the rear floor beam is connected to the rear beam. A rear floor beam-connecting plate, a rear floor beam and a rear floor body are enclosed to form a rear floor beam-cavity, wherein the rear floor beam-cavity is greater than or equal to 80mm in length in the X direction. A ground rail installation point is arranged on the upper surface of the X-direction rear floor beam-1 cavity, which is used for the Z-direction installation of the ground rail of the second row of seats. The front and rear installation points of the second row of seats have no horizontal inclination angle. It is also compatible with ordinary seat rails, with good assembly compatibility and good riding comfort. Compared with the prior art, the lower assembly of the rear vehicle body of the utility model has the advantages that: the X-direction rear floor beam-cavity length is provided with a ground slide rail installation point, which is used for the ground rail of the second row of seats. The Z-direction installation of the slide rail is compatible with the rear floor beam of the ordinary seat rail.

Description of drawings

Fig. 1 is a schematic diagram of a lower assembly of an existing rear vehicle body.

FIG. 2 is a schematic partial cross-sectional view of FIG. 1 .

Fig. 3 is a partial schematic diagram of an existing lower assembly of a rear vehicle body.

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 .

FIG. 5 is a schematic diagram of a lower part of a rear vehicle body according to the present invention.

FIG. 6 is a schematic cross-sectional view taken along the line B-B of FIG. 5 .

FIG. 7 is a schematic diagram of assembling a spare tire of a lower assembly of a rear vehicle body according to the present invention.

FIG. 8 is another schematic diagram of the spare tire assembly of a lower part of a rear vehicle body according to the present invention.

FIG. 9 is a schematic cross-sectional view taken along the line C-C of FIG. 8 .

10 is a schematic diagram of the assembly of a BSG power battery of a lower assembly of a rear vehicle body of the present invention.

Figure 11 is a partial schematic diagram of the assembly of the BSG power battery of a lower assembly of a rear vehicle body according to the present invention.

FIG. 12 is a schematic cross-sectional view taken along the line D-D of FIG. 11 .

Description of drawing numbers

1. Rear floor body; 2. Rear floor beam-connecting plate; 3. Rear floor beam-1; 4. Rear beam; 5. Rear floor beam-cavity; ;8. Spare tire; 9. Opening; 10. Spare tire lifter; 11. Spare tire winch mounting plate; 12. Spare tire cable; 13. Battery installation inner bracket; 14. Battery installation outer front bracket; 15. Battery Install the outer rear bracket; 16. BSG power battery; 17. Refrigeration pipe pipeline; 18. Battery mounting hole; 19. Rear frame; 20. Rear end plate outer plate; 21. Rear end plate inner plate; Cavity; 23. Rear beam cavity.

Detailed ways

A rear vehicle body lower assembly of the present invention will be described in further detail below with reference to FIGS. 5 to 12 of the accompanying drawings.

A lower part of a rear vehicle body of the present invention, please refer to the relevant figures in FIGS. 5 to 12 , including a rear floor assembly, a rear frame assembly and a rear end plate assembly, and the rear frame assembly is fixedly connected At the bottom of the rear floor assembly, the rear end plate assembly is fixedly connected to the rear of the rear floor assembly, the rear end of the rear frame assembly is fixedly connected to the rear end plate assembly, the The rear floor assembly includes a rear floor body 1, a rear floor beam-connecting plate 2 is fixedly connected to the front floor, the rear frame assembly includes a rear floor beam 1 3 and a rear frame 4, and the rear floor beam 1 3 is fixed Connected to the rear beam 4, the rear floor beam one 3 and the rear beam 4 are fixedly connected to the lower part of the rear floor body 1, the rear floor beam a connecting plate 2, the rear floor beam one 3 and The rear floor body 1 is surrounded by a rear floor beam-cavity 5, the X-direction length of the rear floor beam-cavity 5 is greater than or equal to 80mm, and the upper part of the rear floor beam-connecting plate 2 is provided with a ground slide rail. Mount point 6. In this way, the rear frame assembly is connected to the bottom of the rear floor assembly, and the connection can be other connection methods. The rear panel assembly is connected to the rear of the rear floor assembly, and the connection can be other connection methods. The rear end of the rear frame assembly is connected to the rear end plate assembly, and the connection can be other connection methods. The rear floor assembly includes a rear floor body 1 . The rear floor cross member-connecting plate 2 is located on the front floor, and plays a connection role between the front floor and the rear floor assembly, and the connection can be other connection methods. The rear floor beam 1 3 is horizontally arranged and connected to the bottom of both sides of the front end of the rear floor body 1 , and the rear beam 4 is longitudinally arranged on both sides of the bottom of the rear floor body 1 . The rear floor beam-connecting plate 2, the rear floor beam-3 and the rear floor body are surrounded to form a rear floor beam-cavity 5, wherein the rear floor beam-cavity 5 is greater than or equal to 80mm in length in the X direction. A ground rail mounting point 6 is provided on the upper surface of the cavity 5 of the X-direction rear floor beam, which is used for the Z-direction installation of the ground rail of the second row of seats, and the front and rear mounting points of the second row of seats are horizontal and have no inclination angle. , and also compatible with ordinary seat rails, with good assembly compatibility and good riding comfort. Compared with the prior art, the utility model has the advantages of the lower part of the rear vehicle body: the X-direction rear floor beam-cavity 5 is provided with a ground rail mounting point 6 on the length of the cavity 5, which is used for the second row of seats. The Z-direction installation of the seat rail is compatible with the rear floor beam of the ordinary seat rail.

A kind of rear body lower assembly of the present utility model, please refer to the relevant figures of FIG. 5 to FIG. 12 , on the basis of the previous technical scheme, it can also be: the rear end upper part of the rear floor body 1 is detachably fixedly connected with a spare A tire mounting plate 7, a spare tire cavity is surrounded between the spare tire mounting plate 7 and the lower part of the rear floor body 1, and a spare tire 8 is detachably fixed to the rear floor body below the spare tire cavity 1 below. In this way, the upper rear end portion of the rear floor body 1 is connected to the spare tire mounting plate 7, and the connection between the rear floor body 1 and the spare tire mounting plate 7 can also be released, which facilitates disassembly. The spare tire mounting plate 7 and the rear floor body 1 form a spare tire cavity. The spare tire cavity can effectively improve the structural strength and rigidity of the rear floor body 1 in the installation area of the spare tire 8, and then install the spare tire 8 in the spare tire cavity. The lower part of the rear floor body 1 under the body is subjected to compressive stress, and the structure above the entire rear floor body 1 can be used to resist deformation and improve the strength and stability of the installation; the spare tire mounting plate 7 is located above the rear floor body. Under the condition that the Z-direction length of the tire cable 12 is constant, more space is reserved for the spare tire 8 under the rear floor body 1; under the condition of the same ground clearance of the spare tire 8, the spare tire 8 can be lowered. floor, which in turn increases the volume of the luggage. The spare tire mounting plate 7 is directly connected to the rear floor body 1 to form a welded part, which can improve the rigidity of the rear floor body 1, facilitate parts transportation and manufacturing, and facilitate the overall quality of parts of the rear lower body assembly. A further preferred technical solution is as follows: the spare tire mounting plate 7 is provided with an opening 9 , and the spare tire lifter 10 is worn downwardly through the opening 9 and is detachably and fixedly connected to the spare tire 8 . In this way, the spare tire mounting plate 7 is provided with an opening 9, and the spare tire lifter 10 is inserted into the opening 9 of the spare tire mounting plate 7 and connected to the spare tire 8, and the spare tire 8 and the spare tire lifter 10 can also be released. the connection between. The connection between the spare tire mounting plate 7 and the rear floor body 1 is subjected to compressive stress under the action of the gravity of the spare tire 8, and the entire structure above the rear floor body 1 can be used to resist deformation and improve the strength and stability of the installation. A further preferred technical solution is as follows: a spare tire winch mounting plate 11 is detachably and fixedly connected to the rear right side of the rear floor body 1, and the spare tire winch mounting plate 11 is detachably and fixedly connected to a spare tire pulley. One end of the spare tire cable 12 is connected to the spare tire lifter 10 , and the end of the spare tire cable 12 is detachably and fixedly connected to the spare tire 8 . In this way, the spare tire winch mounting plate 11 is connected to the rear right side of the rear floor body 1, and the connection between the spare tire winch mounting plate 11 and the rear floor body 1 can also be released, and the spare tire winch mounting plate 11 is a spare tire lifter. 10 mounting bolts provide mounting points. One end of the spare tire cable 12 is connected to the spare tire winch mounting plate 11 , and the length of the spare tire cable 12 can be adjusted by adjusting the mounting bolts of the spare tire lifter 10 ; the other end of the spare tire cable 12 passes through the opening of the spare tire mounting plate 7 9 and connected to the spare tire 8. When the spare tire 8 is required, the spare tire 8 can be lifted through the spare tire lifter 10 to release the connection between the spare tire 8 and the spare tire cable 12 . The spare tire mounting plate 7 and the spare tire winch mounting plate 11 are arranged in the car to solve the problem of rust exposed outside the car. The spare tire 8 is arranged outside the car to facilitate the disassembly of the spare tire 8; Under the condition that the installation requirements of the spare tire 8 are met, more space is made for the tool box in the trunk.

A lower part of the rear vehicle body of the present invention, please refer to the relevant figures of FIG. 5 to FIG. 12 , on the basis of the previous technical solution, it can also be: the rear left side of the rear end of the rear floor body 1 is provided with a battery installation inner The bracket 13 and the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are arranged in parallel, and the battery installation inner bracket 13 is arranged in parallel with the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 and is formed with The plane shape is in the shape of a zigzag, and the battery mounting inner bracket 13 , the top of the battery mounting outer front bracket 14 and the top of the battery mounting outer rear bracket 15 are all detachably and fixedly connected with a BSG power battery 16 . In this way, the battery installation inner bracket 13 is arranged to extend front and rear, the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are arranged in parallel, wherein the battery installation inner bracket 13 is arranged in parallel with the battery installation outer front bracket 14 and the battery installation outer rear bracket 15, The battery installation inner bracket 13, the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 form a product shape. The BSG power battery 16 is connected to the top of the battery installation inner bracket 13, the top of the battery installation outer front bracket 14, and the top of the battery installation outer rear bracket 15. The BSG power battery 16 can also be released from the top of the battery installation inner bracket 13 and the battery installation outer front bracket. 14 and the battery are installed on the top of the outer rear bracket 15 to facilitate the installation and removal of the BSG power battery 16. Three points that are not on the same line can determine a plane. The battery mounting inner bracket 13, the battery mounting outer front bracket 14, and the battery mounting outer rear bracket 15. The mounting bracket provides at least three mounting points for the BSG power battery 16. Installed on three brackets to improve the stability of BSG power battery 16 installation. The top of the battery installation inner bracket 13, the top of the battery installation outer front bracket 14, and the top of the battery installation outer rear bracket 15 provide reserved installation points for the optional BSG power battery 16, which solves the problem that the BSG power battery 16 cannot be optional for traditional models. Compared with traditional models, hybrid models are conducive to reducing vehicle fuel consumption, improving fuel economy and environmental protection. The BSG power battery 16 is installed above the rear floor body 1. Compared with hoisting the BSG power battery 16 below the rear floor body 1, there is no risk of the BSG power battery 16 falling, which makes the installation structure simpler and only requires Three mounting brackets can realize the installation of the BSG power battery 16 and the fixing is reliable. At the same time, the size of the mounting bracket is small, the arrangement is flexible, and the space is saved, which is beneficial to the lightweight requirements of the automobile and reduces the fuel consumption of the automobile. If the traditional car is not equipped with the BSG power battery 16, the battery mounting inner bracket 13, the battery mounting outer front bracket 14 and the battery mounting outer rear bracket 15 can be used as the mounting points of the conventional toolbox, which is beneficial to improve the utilization rate of the mounting components , which is beneficial to improve the stability of the conventional toolbox. A further preferred technical solution is: a refrigeration pipe line 17 is formed between the battery installation inner bracket 13 , the battery installation outer front bracket 14 , and the battery installation outer rear bracket 15 , and the refrigeration pipe pipeline 17 is composed of The bottom of the rear floor body 1 is pierced upwards. In this way, the refrigeration pipe line 17 is pierced upward from the bottom of the rear floor body 1 between the battery installation inner bracket 13 , the battery installation outer front bracket 14 , and the battery installation outer rear bracket 15 , so that the refrigeration pipe line 17 can be routed from indoor to outdoor. to function. The refrigerating pipe line 17 is arranged between the three brackets, which improves the effective utilization of space. Preferably, the rear floor body 1 between the three mounting brackets is provided with a pipeline hole, the pipeline hole can be an oblong through hole, and the oblong through hole is used to pass through the refrigeration pipe pipeline 17 to improve the effective utilization of space. A further preferred technical solution is: at least one battery mounting hole 18 is formed in the upper part of the battery mounting inner bracket 13 , the battery mounting outer front bracket 14 , and the battery mounting outer rear bracket 15 . In this way, one or more battery mounting holes 18 are opened on the inner battery mounting bracket 13 , one or more battery mounting holes 18 are opened on the outer front battery mounting bracket 14 , and one or more battery mounting holes 18 are opened on the outer battery mounting bracket 15 Battery mounting hole 18. The number of the battery mounting holes 18 is set according to the actual situation. The battery mounting holes 18 provide mounting points for the BSG power battery 16 . Three points that are not on the same line can determine a plane. The battery mounting inner bracket 13, the battery mounting outer front bracket 14, and the battery mounting outer rear bracket 15. The mounting bracket provides at least three mounting points for the BSG power battery 16. Installed on three brackets to improve the stability of BSG power battery 16 installation. The top of the battery installation inner bracket 13, the top of the battery installation outer front bracket 14, and the top of the battery installation outer rear bracket 15 provide reserved installation points for the optional BSG power battery 16, which solves the problem that the BSG power battery 16 cannot be optional for traditional models. Compared with traditional models, hybrid models are conducive to reducing vehicle fuel consumption, improving fuel economy and environmental protection. It is also possible that the longitudinal section of the battery mounting inner bracket 13 is a zigzag shape, the left and right sides of the battery mounting inner bracket 13 are respectively provided with inner bracket flanges, and the inner bracket flanges are fixed to the rear floor body 1 . connect. In this way, the double-shaped battery mounting inner bracket 13 has strong bearing capacity, is sturdy and durable, and the top surface of the middle of the double-shaped battery mounting inner bracket 13 is flat, which is conducive to the connection between the battery mounting inner bracket 13 and the BSG power battery 16 . The two sides of the double-shaped battery installation inner bracket 13 are provided with inner bracket flanges, and the battery installation inner bracket 13 is connected to the rear floor body 1 through the inner bracket flanges, which increases the area of the connection surface between the two and makes the connection more stable. Thus, the strength and stability of the installation structure of the BSG power battery 16 are improved. More preferably, the rear floor body 1 is provided with ribs in the same extension direction as the inner bracket, and the two ends of the flange of the bracket are fixedly connected to the ribs, which improves the connection of the flange of the bracket to the rear floor body 1. strength. It can also be: the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are both in the shape of a figure in the longitudinal section, and the battery installation outer front bracket 14 is provided with front bracket flanges on both sides. Both sides of the outer rear bracket 15 are provided with rear bracket flanges, the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are both arranged directly above the rear frame 4 , and the rear frame 4 is provided on both sides. There is a girder flanging, the front bracket flanging, the rear floor body 1 and the girder flanging are sequentially connected from top to bottom, and the rear bracket flanging, the rear floor body 1 and the girder flanging are The edges are connected in sequence from top to bottom. In this way, the longitudinal cross-sectional shapes of the battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are all zigzag shapes. The connection between the front bracket 14 , the battery installation outer rear bracket 15 and the BSG power battery 16 . The battery installation outer front bracket 14 is provided with a front bracket flange, and the battery installation outer rear bracket 15 is provided with an outer bracket flange. The outer front bracket 14 for battery installation is connected to the rear floor body 1 through the flange of the front bracket, and the outer rear bracket 15 for battery installation is connected to the rear floor body 1 through the flange of the rear bracket, which increases the area of the connection surface with the rear floor body 1. The connection is more stable, thereby improving the strength and stability of the BSG power battery 16 installation structure. The battery installation outer front bracket 14 and the battery installation outer rear bracket 15 are both disposed directly above the rear frame cavity 22. At the same time, the rear frame 4 is provided with frame flanging, from top to bottom, the front support flanging/rear support flanging, the rear floor body 1, and the girder flanging are sequentially arranged. When the battery mounting outer front bracket 14 and the battery mounting outer rear bracket 15 are subjected to downward pressure from the BSG power battery 16, the pressure can be transmitted to the frame flange through the front bracket flange and the rear bracket flange respectively, and then transmitted to the frame flange. The rear girder cavity 22 facilitates the dispersion of force, thereby improving the structural strength of the battery mounting outer front bracket 14 and the battery mounting outer rear bracket 15, and ensuring their reliability and stability.

A kind of rear body lower assembly of the present utility model, please refer to the relevant figures of Fig. 5 to Fig. 12, on the basis of the previous technical scheme, it can also be: the rear end plate assembly includes a rear end plate outer plate 19 and a rear end plate The end plate inner plate 20, the upper end of the rear end outer plate is fixedly connected with the upper end of the rear end plate inner plate 20, and a rear end plate is formed between the rear end plate outer plate 19 and the rear end plate inner plate 20 The end plate cavity 21, the lower end of the rear end plate inner plate 20 is fixedly connected with the rear floor body 1, the rear beam 4 and the rear floor body 1 are surrounded by a rear beam cavity 22, and the rear beam cavity 22 is formed. The end plate cavity is connected to the rear beam cavity 22 . In this way, the outer plate 19 of the rear end plate and the inner plate 20 of the rear end plate are fixedly connected, and the connection can be in other ways. A rear end plate cavity 21 is formed around the rear end plate outer plate 19 and the rear end plate inner plate 20 . The lower end of the rear panel inner panel 20 extends to the upper end of the rear floor body 1 and is fixedly connected to the rear floor body 1, and the connection may be in other connection manners. The rear girder 4 and the rear floor body 1 are surrounded to form a rear girder cavity 22 , wherein the rear girder cavity 22 is connected to the rear panel cavity 21 . By arranging the rear end plate cavity 21 to be connected with the rear frame cavity 22, the modal height of the tailgate frame is improved, the NVH noise is small, and the quality of the passenger car is improved.

The above only describes several specific embodiments of the present utility model, but cannot be regarded as the protection scope of the present utility model. Any equivalent changes or modifications made according to the design spirit of the present utility model, or proportional enlargement or reduction, etc. , should be considered to fall within the protection scope of the present invention.

Claims (10)

1. a kind of aftercarriage lower component, it is characterised in that: including rear floor assembly, Rear frame assembly and end plate assembly, institute It states Rear frame assembly and is fixedly connected on the rear floor assembly bottom, it is total that the end plate assembly is fixedly connected on the rear floor At rear portion, Rear frame assembly rear end is fixedly connected with the end plate assembly, and the rear floor assembly includes rear floor sheet Body (1), rear one connecting plate of floor crossmember (2) are fixedly connected on preceding floor, and the Rear frame assembly includes rear floor crossmember one (3) with rear crossbeam (4), it is described after floor crossmember one (3) be fixedly connected on rear crossbeam (4), it is described after floor crossmember one (3) and Crossbeam (4) is fixedly connected with floor body (1) lower part after described after described, it is described after one connecting plate of floor crossmember (2), described Floor crossmember one (3) and the rear floor body (1) enclose to set and are formed with rear one cavity of floor crossmember (5) afterwards, and the rear floor is horizontal The X of one cavity of beam (5) is more than or equal to 80mm to length, and described rear floor crossmember one connecting plate (2) top is provided with ground sliding rail peace Decorate (6).

2. a kind of aftercarriage lower component according to claim 1, it is characterised in that: floor body (1) rear end after described Top is detachable to be fixedly connected with spare tyre mounting plate (7), the spare tyre mounting plate (7) and described rear floor body (1) lower part Between enclose equipped with spare tyre cavity, spare tyre (8) is removably fixed in after described below the spare tyre cavity under floor body (1) Side.

3. a kind of aftercarriage lower component according to claim 2, it is characterised in that: opened on the spare tyre mounting plate (7) Equipped with opening (9), spare tyre lifter (10) is arranged in the opening (9) downwards and connects with the detachable fixation of the spare tyre (8) It connects.

4. a kind of aftercarriage lower component according to claim 3, it is characterised in that: floor body (1) rear end after described Detachable on right side to be fixedly connected with spare tyre capstan winch mounting plate (11), the spare tyre capstan winch mounting plate (11) is detachable solid Surely it is connected with spare tyre drag-line (12), described spare tyre drag-line (12) one end is connect with the spare tyre lifter (10), and the spare tyre is drawn Rope (12) end with the spare tyre (8) is detachable is fixedly connected.

5. a kind of aftercarriage lower component described in -4 any one claims according to claim 1, it is characterised in that: described Battery installation inner support (13) is provided on the left side of floor body (1) rear end afterwards and battery disposed in parallel installs outer fore-stock (14), battery installs outer after-poppet (15), and battery installation inner support (13) and the battery install outer fore-stock (14), institute Stating battery and installing outer after-poppet (15) and be arranged in parallel and be formed with flat shape is in isosceles triangle, and the battery installs inner support (13) Top, the battery are installed at the top of outer fore-stock (14) and the battery installs outer after-poppet (15) the top company of being detachably fixed It is connected to BSG power battery (16).

6. a kind of aftercarriage lower component according to claim 5, it is characterised in that: the battery installs inner support (13) And the battery installs outer fore-stock (14), the battery is installed and is formed with refrigerator pipes pipeline (17) between outer after-poppet (15), The refrigerator pipes pipeline (17) is worn upwards by described rear floor body (1) bottom.

7. a kind of aftercarriage lower component according to claim 6, it is characterised in that: the battery installs inner support (13), the battery installs outer fore-stock (14), the battery installs outer after-poppet (15) top and at least offers a battery Mounting hole (18).

8. a kind of aftercarriage lower component according to claim 7, it is characterised in that: the battery installs inner support (13) Longitudinal cross-section is zigzag shape, and inner support flange is respectively arranged at left and right sides of battery installation inner support (13), described interior Bracket flange is fixedly connected with the rear floor body (1).

9. a kind of aftercarriage lower component according to claim 7, it is characterised in that: the battery installs outer fore-stock (14) and outer after-poppet (15) longitudinal section shape of battery installation is zigzag shape, and the battery installs outer fore-stock (14) Two sides are provided with fore-stock flange, and the battery installs outer after-poppet (15) two sides and is provided with after-poppet flange, the battery peace It fills outer fore-stock (14) and the battery installs the surface that outer after-poppet (15) is all set in the rear crossbeam (4), after described Crossbeam (4) two sides are provided with crossbeam flange, and the fore-stock flange, the rear floor body (1) and the crossbeam flange are successively It is fixedly connected from top to bottom, the after-poppet flange, the rear floor body (1) and the crossbeam flange are successively solid from top to bottom Fixed connection.

10. a kind of aftercarriage lower component described in -4 any one claims according to claim 1, it is characterised in that: institute Stating end plate assembly includes end plate outside plate (19) and end plate inner panel (20), end plate outside plate (19) upper end and it is described after End plate inner panel (20) upper end is fixedly connected, and is enclosed to set between the end plate outside plate (19) and the end plate inner panel (20) and is formed with End plate cavity (21), end plate inner panel (20) lower end are fixedly connected with the rear floor body (1), the rear crossbeam (4) it encloses to set with the rear floor body (1) and is formed with rear crossbeam cavity (22), the end plate cavity (21) and the rear crossbeam Cavity (22) connection.