CN113276961A - Lower vehicle body floor arrangement structure for range-extended electric commercial vehicle - Google Patents
Lower vehicle body floor arrangement structure for range-extended electric commercial vehicle Download PDFInfo
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- CN113276961A CN113276961A CN202110653414.4A CN202110653414A CN113276961A CN 113276961 A CN113276961 A CN 113276961A CN 202110653414 A CN202110653414 A CN 202110653414A CN 113276961 A CN113276961 A CN 113276961A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 101
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2072—Floor protection, e.g. from corrosion or scratching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a lower car body floor arrangement structure for extending form electric business car belongs to car floor technical field, includes: the floor frame comprises a left longitudinal beam, a right longitudinal beam and a rear cross beam connected between the left longitudinal beam and the right longitudinal beam; the floor body comprises a floor central channel which is positioned between the left longitudinal beam and the right longitudinal beam and is bulged upwards, and the rear end of the floor central channel is fixedly connected with the rear cross beam; the power battery is fixedly arranged below the central channel of the floor in the horizontal direction, and a transverse through space is preset between the power battery and the rear cross beam; the reinforcing assembly comprises a reinforcing cross beam which is positioned in the transverse through space and connects two sides of the central passage of the floor into a whole, and a plurality of steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam along the length direction of the rear cross beam. The reinforcing component integrally improves the rigidity of the floor of the lower vehicle body of the vehicle body, improves the floor mode of the lower vehicle body of the vehicle body, and avoids the abnormal sound and the shaking of the floor of the lower vehicle body of the vehicle body.
Description
Technical Field
The application relates to the technical field of automobile floors, in particular to a lower vehicle body floor arrangement structure for a range-extended electric business vehicle.
Background
Along with the remarkable improvement of living standard of people, people have higher and higher requirements on the riding comfort of automobiles. In order to meet the requirements of customers and improve brand market competitiveness, automobile manufacturers continuously optimize the automobile body structure to achieve the best overall NVH performance on the premise of controlling the lowest design cost. The body under the automobile directly influences the subjective feeling of the passengers on the vibration noise of the automobile body, and the vibration noise transfer function of the body under the automobile has great influence on the riding comfort of the automobile. The insufficient rigidity of the lower body of the vehicle easily causes the vibration and the rolling phenomenon of the vehicle body, so that the riding comfort of the whole vehicle is greatly reduced, and the subjective feeling of people is directly influenced.
MPV Vehicles (Multi-Purpose Vehicles) are Vehicles that integrate the functions of a station wagon, a large passenger space, the comfort of a passenger car and a van. With the improvement of living standard of people, the demand of MPV automobiles is further increased. In the early development process of NVH performance of the whole MPV automobile, the problem of floor shaking on the real automobile in the later period can be caused due to the low floor mode, particularly for the extended range type electric automobile, the electric automobile has the pain of endurance mileage, and the requirement on the whole automobile light weight is more rigorous.
In order to meet the requirements of MPV automobile space and riding comfort, the lower automobile body structure of the MPV automobile is generally different from a car, and the height design of the central passage structure of the floor of the lower automobile body structure is lower. Because the floor central passage is low in height and the arrangement of the cross beams and the longitudinal beams on the floor is less, the floor mode is naturally reduced. The bending rigidity, the mode, the collision performance and the like of the automobile body are influenced to a certain extent. When a vehicle collides, the vehicle is easily deformed, and it is difficult to ensure the safety of the passenger.
In addition, compared with a pure electric vehicle, the range-extended electric commercial vehicle has systems such as an engine and an exhaust system, so that the excitation source is larger, and the floor shaking problem is more easily caused.
In the related art, through type longitudinal beams are additionally arranged on two sides of a central passage of a floor or a cross beam is additionally arranged in a lower vehicle body, but the two schemes have obvious problems, firstly, the weight and the cost of the vehicle body are increased, and the vehicle is difficult to push on an extended range type electric business vehicle which is extremely sensitive to the weight. Secondly, the arrangement space is excessively occupied, the requirement of the range-extended electric commercial vehicle on the internal space is extremely high, so that the height of the central passage of the floor is low, and the through type longitudinal beams are additionally arranged on two sides of the central passage of the floor and the cross beams are additionally arranged in the lower vehicle body to interfere with pipelines.
Disclosure of Invention
The embodiment of the application provides a lower vehicle body floor arrangement structure for a range-extended electric business vehicle, so as to solve the problems that the lower vehicle body of the range-extended electric business vehicle in the related technology is low in model and easily causes floor shaking.
The embodiment of the application provides a lower automobile body floor arrangement structure for extending form electric business car, includes:
the floor frame comprises a left longitudinal beam, a right longitudinal beam and a rear cross beam connected between the left longitudinal beam and the right longitudinal beam;
the floor body comprises a floor central channel which is positioned between the left longitudinal beam and the right longitudinal beam and is bulged upwards, and the rear end of the floor central channel is fixedly connected with the rear cross beam;
the power battery is fixedly arranged below the central passage of the floor in the horizontal direction, and a transverse through space is preset between the power battery and the rear cross beam;
the reinforcing assembly comprises a reinforcing cross beam which is positioned in the transverse through space and connects two sides of the central passage of the floor into a whole, and a plurality of steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam along the length direction of the rear cross beam.
In some embodiments: two sides of the bottom of the central passage of the floor are respectively provided with a hem connected with the reinforcing beam, and the hem extends towards the outer side of the central passage of the floor;
the folded edges are provided with mounting holes connected with the reinforcing cross beam, and two ends of the reinforcing cross beam are fixedly connected with the folded edges on two sides of the bottom of the central passage of the floor respectively through bolts.
In some embodiments: the reinforcing cross beam is of a hollow pipe body structure, and mounting holes for connecting the central channel of the floor are formed in two ends of the reinforcing cross beam after the two ends of the reinforcing cross beam are flattened.
In some embodiments: the rear cross beam comprises a lower triangular cross beam and an upper triangular cross beam which are welded into a whole, and the lower triangular cross beam and the upper triangular cross beam form the rear cross beam with a rectangular pipe body structure in cross section;
a plurality of steel sheet strengthening rib all around in the rear cross beam respectively with lower triangle crossbeam and last triangle crossbeam fixed connection, it is a plurality of steel sheet strengthening rib is parallel to each other in the rear cross beam.
In some embodiments: the steel plate reinforcing ribs comprise a first reinforcing rib and a second reinforcing rib, and the first reinforcing rib and the second reinforcing rib are respectively provided with two reinforcing ribs;
and the two first reinforcing ribs are positioned between the two second reinforcing ribs and are symmetrically arranged along the central line of the rear cross beam respectively.
In some embodiments: the first reinforcing rib comprises an outer support and an inner support which are integrally formed, and the outer support and the inner support are of a structure shaped like a Chinese character 'ji';
the height of the outer support is higher than that of the inner support, the top of the outer support is flush with that of the inner support and is connected with the top of the inner support through a first upper flanging, and the first upper flanging is connected with the inner wall of the upper triangular cross beam in a welding mode;
the bottom of the outer support is provided with a first lower flanging, the bottom of the inner support is provided with a second lower flanging, and the first lower flanging and the second lower flanging are connected with the inner wall of the lower triangular cross beam through structural glue.
In some embodiments: a second upper flanging, a third lower flanging, a first front flanging and a first rear flanging are respectively arranged on the periphery of the second reinforcing rib;
the second upper flanging and the first rear flanging are connected with the inner wall of the upper triangular cross beam in a welding mode, and the third lower flanging is connected with the inner wall of the lower triangular cross beam through structural adhesive.
In some embodiments: the bottom surface in the middle of the rear cross beam is provided with an avoiding groove communicated with the central passage of the floor, and a notch of the avoiding groove faces downwards.
In some embodiments: the floor body also comprises a left floor connected to the left side of the floor central passage and a right floor connected to the right side of the floor central passage;
the left side of the left floor is fixedly connected with the left longitudinal beam, and the rear end of the left floor is fixedly connected with the rear cross beam;
the right side of the right floor is fixedly connected with the right longitudinal beam, and the rear end of the right floor is fixedly connected with the rear cross beam.
In some embodiments: the left side and the right side of the power battery are respectively provided with a left battery bracket and a right battery bracket, the left battery bracket is fixedly connected with the left longitudinal beam, and the right battery bracket is fixedly connected with the right floor, so that a longitudinal through space is formed between the power battery and the right longitudinal beam;
or the left battery bracket is fixedly connected with the left floor, and the right battery bracket is fixedly connected with the right longitudinal beam, so that a longitudinal through space is formed between the power battery and the left longitudinal beam.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a lower vehicle body floor arrangement structure for a range-extended electric business vehicle, which is characterized in that a floor frame is arranged on the lower vehicle body floor arrangement structure, and the floor frame comprises a left longitudinal beam, a right longitudinal beam and a rear cross beam connected between the left longitudinal beam and the right longitudinal beam; the floor comprises a floor body, a left longitudinal beam, a right longitudinal beam, a rear cross beam and a floor body, wherein the floor body comprises a floor central channel which is positioned between the left longitudinal beam and the right longitudinal beam and is bulged upwards; the power battery is fixedly arranged below the central channel of the floor in the horizontal direction, and a transverse through space is preset between the power battery and the rear cross beam; the reinforcing assembly comprises a reinforcing cross beam which is positioned in a transverse through space and connects two sides of a central passage of the floor into a whole, and a plurality of steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam along the length direction of the rear cross beam.
Therefore, the lower vehicle body floor arrangement structure is provided with a load-bearing floor frame, a floor central channel which is arranged between the left longitudinal beam and the right longitudinal beam of the floor frame and is upwards raised, and the rear end of the floor central channel is fixedly connected with the rear cross beam. The power battery is arranged below the central passage of the floor, a transverse through space is reserved between the power battery and the rear cross beam, two sides of the central passage of the floor are connected into a whole through a reinforcing cross beam in the transverse through space, and the lower part of the reinforcing cross beam at the rear end of the central passage of the floor transversely crosses two sides of the central passage of the floor. The reinforcing cross beam improves the rigidity of the central passage of the floor and inhibits the deformation and shaking of the floor. The steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam along the length direction of the rear cross beam, and the steel plate reinforcing ribs are hidden in the rear cross beam, so that the rigidity of the rear cross beam is improved, and the deformation and the shaking of the floor are inhibited.
The reinforcing component integrally improves the rigidity of the lower vehicle body of the vehicle body, improves the floor mode of the vehicle body, and avoids the problems of abnormal sound and shaking of the subsequent floor. Due to the arrangement of the reinforcing component, the lower vehicle body does not need to be additionally provided with through type longitudinal beams on two sides of the central passage of the floor or a cross beam inside the lower vehicle body, so that the weight of the vehicle body is reduced, and the comfort of a passenger riding space is effectively improved. The reinforcing component is designed in a light weight mode, energy consumption is effectively reduced, and the technical effect of improving the lower vehicle body floor mode under the condition of less weight increase and less space invasion is finally achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a bottom view of the structure of an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a steel plate reinforcing rib and an upper triangular beam according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a first reinforcing rib according to an embodiment of the present application;
fig. 5 is a schematic structural view of a second reinforcing rib according to an embodiment of the present application.
Reference numerals:
1. a left stringer; 2. a right stringer; 3. a rear cross member; 4. a floor center tunnel; 5. a power battery; 6. a left battery support; 7. a right battery support; 8. a first reinforcing rib; 9. a second reinforcing rib; 10. a reinforcing cross beam; 11. a left floor; 12. a right floor; 31. an upper triangular cross beam; 81. an outer support; 82. an inner support; 83. a first upper flange; 84. a first lower flanging; 85. second lower flanging; 91. second upward flanging; 92. third lower flanging; 93. a first front flange; 94. the first back flanging.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a lower vehicle body floor arrangement structure for a range-extended electric business vehicle, which can solve the problems that the lower vehicle body of the range-extended electric business vehicle in the related technology is low in model and easily causes floor shaking.
Referring to fig. 1 and 2, an embodiment of the present application provides a lower body floor arrangement structure for an extended range electric business vehicle, including:
the floor frame comprises a left longitudinal beam 1, a right longitudinal beam 2 and a rear cross beam 3 connected between the left longitudinal beam 1 and the right longitudinal beam 2; the left longitudinal beam 1 and the right longitudinal beam 2 are welded into a whole through the rear cross beam 3, and the left longitudinal beam 1, the right longitudinal beam 2 and the rear cross beam 3 jointly form a bearing stress structure of the floor of the lower vehicle body.
The floor body comprises a floor central channel 4 which is positioned between the left longitudinal beam 1 and the right longitudinal beam 2 and is bulged upwards, and the rear end of the floor central channel 4 is fixedly connected with the rear cross beam 3. The floor body further comprises a left floor 11 connected to the left side of the floor center tunnel 4 and a right floor 12 connected to the right side of the floor center tunnel 4.
The left side of the left floor 11 is fixedly connected with the left longitudinal beam 1, and the rear end of the left floor 11 is fixedly connected with the rear cross beam 3; the left floor 11 and the floor central channel 4 are connected by welding or are in an integral punch forming structure. The right side of the right floor 12 is fixedly connected with the right longitudinal beam 2, the rear end of the right floor 12 is fixedly connected with the rear cross beam 3, and the right floor 12 is connected with the floor central channel 4 in a welding mode or in an integrated punch forming mode.
And the power battery 5 is fixedly arranged below the central passage 4 of the floor in the horizontal direction, and a transverse through space is preset between the power battery 5 and the rear cross beam 3. The top of the power battery 5 is attached to the bottom of the floor center tunnel 4, and the lines of the power battery 5 extend from the floor center tunnel 4 to the front and rear ends of the vehicle body.
And the reinforcing component comprises a reinforcing cross beam 10 which is positioned in the transverse through space and integrally connects two sides of the central floor channel 4, and the reinforcing cross beam 10 is positioned below the rear end of the central floor channel 4. A plurality of steel plate reinforcing ribs arranged at intervals are fixedly arranged in the rear cross beam 3 along the length direction of the rear cross beam 3.
The lower vehicle body floor arrangement structure provided by the embodiment of the application is provided with a load-bearing floor frame, a floor central channel 4 which is arranged between a left longitudinal beam 1 and a right longitudinal beam 2 of the floor frame and is upwards raised, and a rear cross beam 3 fixedly connected with the floor central channel 4 is arranged at the rear end of the floor central channel 4. The extension of the floor center tunnel 4 in the longitudinal direction increases the longitudinal rigidity of the vehicle body, and when the vehicle body is subjected to a longitudinal impact, the floor center tunnel 4 transfers a part of the longitudinal impact force to the rear cross member 3.
The power battery 5 is arranged below the floor central channel 4, a transverse through space is reserved between the power battery 5 and the rear cross beam 3, two sides of the floor central channel 4 are connected into a whole through a reinforcing cross beam 10 in the transverse through space, and the reinforcing cross beam 10 transversely crosses two sides of the floor central channel 4 at the lower part of the rear end of the floor central channel 4. The reinforcement beam 10 enhances the rigidity of the floor center tunnel 4, and suppresses the shaking, abnormal sound, and deformation of the lower body floor.
A plurality of steel plate reinforcing ribs arranged at intervals are fixedly arranged in the rear cross beam 3 along the length direction of the rear cross beam 3, and the steel plate reinforcing ribs are hidden in the rear cross beam 3, so that the rigidity of the rear cross beam 3 is improved, and the shaking, abnormal sound and deformation of the lower vehicle body floor are inhibited.
The reinforcing component integrally improves the rigidity of the lower vehicle body of the vehicle body, improves the floor mode of the vehicle body, and avoids subsequent abnormal sound and shaking problems. Due to the arrangement of the reinforcing component, through longitudinal beams do not need to be additionally arranged on two sides of the central passage 4 of the floor of the lower vehicle body, or a cross beam is additionally arranged in the lower vehicle body, so that the weight of the vehicle body is reduced, and the comfort of a passenger riding space is effectively improved. The reinforcing component is designed in a light weight mode, energy consumption is effectively reduced, and the technical effect of improving the lower vehicle body floor mode under the condition of less weight increase and less space invasion is finally achieved.
In some alternative embodiments: referring to fig. 2, the present embodiment provides a lower body floor arrangement structure for an extended range electric business vehicle, wherein two sides of the bottom of the rear end of a floor central channel 4 of the lower body floor arrangement structure are respectively provided with a hem connected with a reinforcing beam 10, and the hem extends towards the outer side of the floor central channel 4. The hem is provided with a mounting hole connected with a reinforcing beam 10, and two ends of the reinforcing beam 10 are respectively fixedly connected with the hems at two sides of the bottom of the central passage 4 of the floor through bolts.
The reinforcing beam 10 is of a hollow pipe structure, and mounting holes for connecting the central passage 4 of the floor are formed in two ends of the reinforcing beam 10 after the two ends of the reinforcing beam are flattened. The left end of the reinforcing beam 10 is fixedly connected with the folded edge at the left side of the bottom of the central passage 4 of the floor through a bolt, and the right end of the reinforcing beam 10 is fixedly connected with the folded edge at the right side of the bottom of the central passage 4 of the floor through a bolt.
The left side hem of the bottom of the rear end of the central floor channel 4 and the right side hem of the bottom of the rear end of the central floor channel 4 are fixedly connected through the reinforcing cross beam 10, so that the central floor channel 4 is formed into a stable structure, abnormal sound and shaking of the central floor channel 4 are inhibited, the transverse structural rigidity of the bottom of the rear end of the central floor channel 4 is improved, and the lifting of a vehicle body mode is facilitated.
In some alternative embodiments: referring to fig. 2 and 3, the present application provides a lower body floor arrangement structure for an extended range electric business vehicle, where a rear cross beam 3 of the lower body floor arrangement structure includes a lower triangular cross beam (not shown in the drawings) and an upper triangular cross beam 31 that are welded together, and the lower triangular cross beam and the upper triangular cross beam 31 are fastened to each other to form the rear cross beam 3 with a cross section of a rectangular tube structure.
A plurality of steel sheet strengthening ribs are all around in back crossbeam 3 respectively with lower triangle crossbeam and last triangle crossbeam 31 fixed connection, and a plurality of steel sheet strengthening ribs are parallel to each other in back crossbeam 3. The steel plate reinforcing rib comprises a first reinforcing rib 8 and a second reinforcing rib 9, and the first reinforcing rib 8 and the second reinforcing rib 9 are respectively provided with two parts. The two first reinforcing ribs 8 are positioned between the two second reinforcing ribs 9 and are respectively and symmetrically arranged along the central line of the rear cross beam 3.
A plurality of steel sheet strengthening ribs are respectively with lower triangle crossbeam and last triangle crossbeam 31 fixed connection in rear beam 3, strengthen rear beam 3's structural rigidity and bending resistance, restrain rear beam 3's deformation and shake to do benefit to and promote the automobile body mode.
In some alternative embodiments: referring to fig. 3 to 5, the present embodiment provides a lower body floor arrangement structure for an extended range type electric business vehicle, wherein a first reinforcing rib 8 of the lower body floor arrangement structure comprises an outer bracket 81 and an inner bracket 82 which are integrally formed, and the outer bracket 81 and the inner bracket 82 are of a zigzag structure.
The height of the outer support 81 is higher than that of the inner support 82, the top of the outer support 81 is flush with that of the inner support 82 and is connected with the top of the inner support 82 through a first upper flanging 83, and the first upper flanging 83 is connected with the inner wall of the upper triangular cross beam 31 in a welding mode.
The bottom surface in the middle of the rear cross beam 3 is provided with an avoiding groove communicated with the floor central channel 4, the notch of the avoiding groove faces downwards, and the avoiding groove is communicated with the floor central channel 4 so as to be convenient for arranging a pipeline to the rear of the vehicle body. The first reinforcing rib 8 is positioned at the position of the middle part of the rear cross beam 3 avoiding the groove.
The bottom of the outer bracket 81 is provided with a first lower flanging 84, the bottom of the inner bracket 82 is provided with a second lower flanging 85, and the first lower flanging 84 and the second lower flanging 85 are connected with the inner wall of the lower triangular cross beam through structural glue.
The second reinforcing rib 9 is provided with a second upper flange 91, a third lower flange 92, a first front flange 93 and a first rear flange 94 around. The second upper flange 91 and the first rear flange 94 are welded to the inner wall of the upper triangular beam 31, and the third lower flange 92 is connected to the inner wall of the lower triangular beam by structural adhesive.
First strengthening rib 8 and second strengthening rib 9 are the integrative stamping forming structure of steel sheet of thickness 1.2mm, all adopt lightening hole lightweight design on first strengthening rib 8 and second strengthening rib 9 to reduce the weight of first strengthening rib 8 and second strengthening rib 9, in order to lighten automobile body weight down.
In some alternative embodiments: referring to fig. 1, the embodiment of the present application provides a lower body floor arrangement structure for an extended range electric business vehicle, a left battery bracket 6 and a right battery bracket 7 are respectively disposed on the left side and the right side of a power battery 5 of the lower body floor arrangement structure, the left battery bracket 6 is fixedly connected to a left longitudinal beam 1, and the right battery bracket 7 is fixedly connected to a right floor 12, so that a longitudinal through space is formed between the power battery 5 and a right longitudinal beam 2, and an exhaust pipe can be arranged in the longitudinal through space.
Or, the left battery bracket 6 is fixedly connected with the left floor 11, and the right battery bracket 7 is fixedly connected with the right longitudinal beam 2, so that a longitudinal through space is formed between the power battery 5 and the left longitudinal beam 1, and the exhaust pipe can be arranged in the longitudinal through space.
Principle of operation
The embodiment of the application provides a lower vehicle body floor arrangement structure for a range-extended electric business vehicle, which is characterized in that the lower vehicle body floor arrangement structure is provided with a floor frame, and the floor frame comprises a left longitudinal beam 1, a right longitudinal beam 2 and a rear cross beam 3 connected between the left longitudinal beam 1 and the right longitudinal beam 2; the floor comprises a floor body, a left longitudinal beam 1, a right longitudinal beam 2 and a rear cross beam 3, wherein the floor body comprises a floor central channel 4 which is positioned between the left longitudinal beam 1 and the right longitudinal beam 2 and is bulged upwards, and the rear end of the floor central channel 4 is fixedly connected with the rear cross beam 3; the power battery 5 is fixedly arranged below the central passage 4 of the floor in the horizontal direction, and a transverse through space is preset between the power battery 5 and the rear cross beam 3; the reinforcing component comprises a reinforcing cross beam 10 which is positioned in a transverse through space and connects two sides of the central passage 4 of the floor into a whole, and a plurality of steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam 3 along the length direction of the rear cross beam 3.
Therefore, the lower vehicle body floor arrangement structure of the application is provided with a load-bearing floor frame, a floor central channel 4 which is arranged between the left longitudinal beam 1 and the right longitudinal beam 2 of the floor frame and is upwards raised, and the rear end of the floor central channel 4 is fixedly connected with the rear cross beam 3. The power battery 5 is arranged below the floor central channel 4, a transverse through space is reserved between the power battery 5 and the rear cross beam 3, two sides of the floor central channel 4 are connected into a whole through a reinforcing cross beam 10 in the transverse through space, and the reinforcing cross beam 10 transversely crosses two sides of the floor central channel 4 at the lower part of the rear end of the floor central channel 4. The reinforcement beam 10 increases the rigidity of the floor center tunnel 4, suppressing floor deformation and chattering. A plurality of steel plate reinforcing ribs arranged at intervals are fixedly arranged in the rear cross beam 3 along the length direction of the rear cross beam, and the steel plate reinforcing ribs are hidden in the rear cross beam 3, so that the rigidity of the rear cross beam 3 is improved, and the deformation and the shaking of the floor are inhibited.
The reinforcing component integrally improves the rigidity of the lower vehicle body of the vehicle body, improves the floor mode of the vehicle body, and avoids subsequent abnormal sound and shaking problems. Due to the arrangement of the reinforcing component, through longitudinal beams do not need to be additionally arranged on two sides of the central passage 4 of the floor of the lower vehicle body, or a cross beam is additionally arranged in the lower vehicle body, so that the weight of the vehicle body is reduced, and the comfort of a passenger riding space is effectively improved. The reinforcing component is designed in a light weight mode, energy consumption is effectively reduced, and the technical effect of improving the lower vehicle body floor mode under the condition of less weight increase and less space invasion is finally achieved.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A lower body floor arrangement for an extended range electric commerce vehicle, comprising:
the floor frame comprises a left longitudinal beam (1), a right longitudinal beam (2) and a rear cross beam (3) connected between the left longitudinal beam (1) and the right longitudinal beam (2);
the floor comprises a floor body, wherein the floor body comprises a floor central channel (4) which is located between the left longitudinal beam (1) and the right longitudinal beam (2) and is bulged upwards, and the rear end of the floor central channel (4) is fixedly connected with a rear cross beam (3);
the power battery (5) is fixedly arranged below the floor central channel (4) in the horizontal direction, and a transverse through space is preset between the power battery (5) and the rear cross beam (3);
the reinforcing assembly comprises a reinforcing cross beam (10) which is positioned in the transverse through space and is connected with the two sides of the floor central channel (4) into a whole, and a plurality of steel plate reinforcing ribs which are arranged at intervals are fixedly arranged in the rear cross beam (3) along the length direction of the rear cross beam (3).
2. The lower body floor arrangement for an extended range electric business vehicle of claim 1, wherein:
two sides of the bottom of the central floor channel (4) are respectively provided with a hem connected with the reinforcing beam (10), and the hems extend towards the outer side of the central floor channel (4);
the folded edges are provided with mounting holes connected with the reinforcing cross beam (10), and two ends of the reinforcing cross beam (10) are fixedly connected with the folded edges on two sides of the bottom of the central passage (4) of the floor respectively through bolts.
3. The lower body floor arrangement structure for the extended range electric business vehicle as recited in claim 1 or 2, wherein:
the reinforcing beam (10) is of a hollow pipe body structure, and mounting holes for connecting the floor central channel (4) are formed in the two ends of the reinforcing beam (10) after the two ends of the reinforcing beam are flattened.
4. The lower body floor arrangement for an extended range electric business vehicle of claim 1, wherein:
the rear cross beam (3) comprises a lower triangular cross beam and an upper triangular cross beam (31) which are welded into a whole, and the lower triangular cross beam and the upper triangular cross beam (31) form the rear cross beam with a rectangular tube body structure in cross section;
a plurality of steel plate reinforcing ribs are fixedly connected with the lower triangular cross beam and the upper triangular cross beam (31) in the rear cross beam (3) at the periphery, and the steel plate reinforcing ribs are parallel to each other in the rear cross beam (3).
5. The lower body floor arrangement for the extended range electric business vehicle of claim 4, wherein:
the steel plate reinforcing ribs comprise a first reinforcing rib (8) and a second reinforcing rib (9), and the first reinforcing rib (8) and the second reinforcing rib (9) are respectively provided with two reinforcing ribs;
the two first reinforcing ribs (8) are positioned between the two second reinforcing ribs (9) and are symmetrically arranged along the central line of the rear cross beam (3) respectively.
6. The lower body floor arrangement for the extended range electric business vehicle of claim 5, wherein:
the first reinforcing rib (8) comprises an outer support (81) and an inner support (82) which are integrally formed, and the outer support (81) and the inner support (82) are of a structure shaped like a Chinese character 'ji';
the height of the outer support (81) is higher than that of the inner support (82), the top of the outer support (81) is flush with that of the inner support (82) and is connected with the top of the inner support (82) through a first upper flanging (83), and the first upper flanging (83) is connected with the inner wall of the upper triangular cross beam (31) in a welding mode;
the bottom of the outer support (81) is provided with a first lower flanging (84), the bottom of the inner support (82) is provided with a second lower flanging (85), and the first lower flanging (84) and the second lower flanging (85) are connected with the inner wall of the lower triangular cross beam through structural glue.
7. The lower body floor arrangement for the extended range electric business vehicle of claim 5, wherein:
a second upper flanging (91), a third lower flanging (92), a first front flanging (93) and a first rear flanging (94) are respectively arranged on the periphery of the second reinforcing rib (9);
the second upper flanging (91) and the first rear flanging (94) are connected with the inner wall of the upper triangular beam (31) in a welded mode, and the third lower flanging (92) is connected with the inner wall of the lower triangular beam through structural glue.
8. The lower body floor arrangement for an extended range electric business vehicle of claim 1, wherein:
the bottom surface in the middle of the rear cross beam (3) is provided with an avoiding groove communicated with the floor central channel (4), and a notch of the avoiding groove faces downwards.
9. The lower body floor arrangement for an extended range electric business vehicle of claim 1, wherein:
the floor body further comprises a left floor (11) connected to the left side of the floor central passage (4) and a right floor (12) connected to the right side of the floor central passage (4);
the left side of the left floor (11) is fixedly connected with the left longitudinal beam (1), and the rear end of the left floor (11) is fixedly connected with the rear cross beam (3);
the right side of the right floor (12) is fixedly connected with the right longitudinal beam (2), and the rear end of the right floor (12) is fixedly connected with the rear cross beam (3).
10. The lower body floor arrangement for an extended range electric business vehicle of claim 9, wherein:
the left side and the right side of the power battery (5) are respectively provided with a left battery bracket (6) and a right battery bracket (7), the left battery bracket (6) is fixedly connected with the left longitudinal beam (1), and the right battery bracket (7) is fixedly connected with the right floor (12) so as to form a longitudinal through space between the power battery (5) and the right longitudinal beam (2);
or the left battery bracket (6) is fixedly connected with the left floor (11), and the right battery bracket (7) is fixedly connected with the right longitudinal beam (2), so that a longitudinal through space is formed between the power battery (5) and the left longitudinal beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653414.4A CN113276961B (en) | 2021-06-11 | 2021-06-11 | Lower vehicle body floor arrangement structure for range-extended electric commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653414.4A CN113276961B (en) | 2021-06-11 | 2021-06-11 | Lower vehicle body floor arrangement structure for range-extended electric commercial vehicle |
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| Publication Number | Publication Date |
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| CN113276961A true CN113276961A (en) | 2021-08-20 |
| CN113276961B CN113276961B (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110653414.4A Active CN113276961B (en) | 2021-06-11 | 2021-06-11 | Lower vehicle body floor arrangement structure for range-extended electric commercial vehicle |
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| CN115257962A (en) * | 2022-06-30 | 2022-11-01 | 岚图汽车科技有限公司 | A preceding floor assembly and car for installing battery package |
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| CN113276961B (en) | 2022-03-11 |
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