Car body side collision energy absorption structure of electric car

Abstract

The invention discloses a vehicle body side collision energy absorption structure of an electric vehicle in the technical field of vehicle body energy absorption, which comprises a B column main body consisting of a B column body, a lower support plate and an upper support plate; the energy absorption shell is arranged in the center of one side of the B main body; a hole site protection assembly, wherein the hole site protection assembly is arranged corresponding to the flat cable hole; the multiple sets of first auxiliary energy absorption assemblies are each composed of a mounting shell, multiple sets of expansion buffering mechanisms and a triggering part; and the multiple second auxiliary energy absorption assemblies are arranged, and each second auxiliary energy absorption assembly is composed of two extending energy absorption mechanisms and a driving mechanism. Through the design of the first auxiliary energy absorption assembly, the second auxiliary energy absorption assembly, the buffering assembly and the hole site protection assembly, the multi-layer buffering function with mutual compensation is achieved, and therefore the beneficial effects that the strength of the B column body is effectively improved, and collision force is effectively dispersed and reduced are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle body energy absorption, and in particular to a vehicle body side collision energy absorption structure of an electric vehicle. Background Art

[0002] The design of the energy absorption structure of the side collision of electric vehicles is an important part to ensure that the vehicle can effectively absorb and disperse the collision energy in the event of a side collision, thereby protecting the safety of the occupants and battery packs. The main anti-collision pillars of electric vehicles are composed of A-pillars, B-pillars and C-pillars. The B-pillar is the main anti-collision pillar on the side of the car body. The B-pillar also plays a role in supporting the car body. Therefore, the strength and rigidity of the B-pillar are crucial to maintaining the integrity of the passenger compartment. Usually, in order to ensure higher strength, the B-pillar will be solid in design. This design can effectively ensure its own strength to cope with the side impact of the car body. However, some holes will be opened in the B-pillar to facilitate the connection of the lines. At the same time, the B-pillar is curved and I-shaped. This design can well target the collision force, improve its own strength, and better protect the occupants.

[0003] The existing technology still has some problems: because the B-pillar is usually designed in an arc shape and an I-shape, although this design can improve the strength and better protect the occupants, the arc-shaped design means that the B-pillar is only exposed to the collision force at one point, and the B-pillar is usually designed to be solid, which easily leads to the B-pillar being unable to effectively absorb the collision force, resulting in the overall inability to effectively alleviate the collision force and being unable to meet the status quo. Secondly, because the holes opened on the B-pillar are convenient for the connection of lines, when the B-pillar is hit, these holes are relatively fragile and easily deformed by the collision, which results in the strength of the B-pillar being slightly reduced due to the holes opened, and there are certain limitations. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an energy-absorbing structure for the side collision of an electric vehicle. The object of the present invention is achieved as follows: A body side collision energy absorption structure of an electric vehicle, comprising: A B-pillar body, the B-pillar body is composed of a B-pillar body, a lower support plate and an upper support plate, the B-pillar body is arranged between the lower support plate and the upper support plate, and the B-pillar body is arranged in an arc shape; An energy absorbing shell, which is arranged at the center of one side of the main body B, and an energy absorbing cavity is opened on one side of the energy absorbing shell; A hole protection component, wherein the hole protection component is provided in multiple groups, and the multiple groups of hole protection components are all arranged inside the energy absorption cavity, and multiple groups of wiring holes are opened on one side of the B-pillar body, and the hole protection components are arranged correspondingly to the wiring holes; A first auxiliary energy absorbing assembly, wherein the first auxiliary energy absorbing assembly is provided with multiple groups, and the first auxiliary energy absorbing assembly is arranged on the other side of the energy absorbing shell, and the multiple groups of the first auxiliary energy absorbing assembly are composed of a mounting shell, multiple groups of expansion buffer mechanisms and a trigger component, the multiple groups of the expansion buffer mechanisms are symmetrically arranged on the outside of the mounting shell, the trigger component is arranged on the side of the mounting shell away from the energy absorbing shell, the expansion buffer mechanism is transmission-connected with the trigger component, so that the expansion buffer mechanism is close to or away from the mounting shell through the trigger component; The second auxiliary energy absorbing component is provided with multiple groups, and the second auxiliary energy absorbing component is movably arranged inside the energy absorbing shell, the second auxiliary energy absorbing component is located between the first auxiliary energy absorbing component and the hole protection component, the second auxiliary energy absorbing component is composed of two groups of extended energy absorbing mechanisms and a driving mechanism, the driving mechanism is arranged inside the energy absorbing cavity, the two groups of extended energy absorbing mechanisms are respectively connected to the two ends of the driving mechanism, so that the two groups of extended energy absorbing mechanisms are arranged to be far away from or close to each other through the driving mechanism.

[0005] Optionally, the hole protection assembly includes two groups of extended protection plates, and multiple groups of avoidance holes are opened on both sides of the energy absorption cavity. The extended protection plates are slidably installed inside the avoidance holes. The extended protection plates are arranged correspondingly to the wiring holes, and a groove is opened at one end of the extended protection plates, and the groove is arranged correspondingly to the wiring holes.

[0006] Optionally, one side of the B-pillar body is detachably connected to multiple groups of limit bolts through threads, and every two groups of limit bolts are symmetrically arranged, the limit bolts are arranged close to the wiring holes, and a limit groove is opened at one end of the extended protective plate, and the limit groove is arranged corresponding to the limit bolts.

[0007] Optionally, a first energy absorbing plate is fixedly installed on one end of the two groups of extended protection plates close to each other, the two groups of first energy absorbing plates are arranged at corresponding inclinations, and the two groups of first energy absorbing plates are fixed to each other, a bending groove is provided on the upper surface of the connection between the two groups of first energy absorbing plates, and the connection between the two groups of first energy absorbing plates is fixedly connected to the inside of the energy absorbing cavity.

[0008] Optionally, multiple groups of the expansion buffer mechanisms are composed of multiple groups of expansion shells, and the multiple groups of expansion shells are arranged to slide together, and storage grooves are provided at both ends of the installation shell, and one group of expansion shells is slidably installed inside the storage groove. The multiple groups of expansion shells are connected to the trigger component, so that the multiple groups of expansion shells are elastically connected to each other through the trigger component, and the multiple groups of expansion shells are provided with installation grooves on the side close to the B-pillar body, and a buffer component is arranged inside the installation groove.

[0009] Optionally, the trigger component includes multiple groups of trigger ropes and multiple groups of drive springs, the trigger ropes are fixedly connected to another group of expansion shells, the drive spring is arranged between two adjacent groups of expansion shells, a guide groove is opened in the center of the installation shell, and multiple groups of storage grooves are connected to the inside of the guide groove, the trigger rope is located inside the guide groove, and both ends of one side of the guide groove are slidably connected with the storage shell, and a sliding groove is opened at one end of the storage shell, and a reset spring is fixedly installed at one end of the sliding groove, a push rod is slidably connected inside the sliding groove, one end of the push rod is fixedly connected to the reset spring, the push rod is arranged between the outside of the trigger rope and one end of the guide groove, and both ends on both sides of the guide groove are fixedly installed with limit blocks.

[0010] Optionally, docking plates are fixedly installed on the four corners of one side of the mounting shell, and multiple groups of docking plates are fixedly installed on the side away from the B-pillar body. The side of the mounting shell away from the B-pillar body is elastically connected to the trigger plate through the rubber pad, and multiple groups of first buffer steel bars are correspondingly arranged around the outer side of the rubber pad, and the multiple groups of first buffer steel bars are fixedly installed between the docking plate and the trigger plate, and a docking plate is fixedly installed at the center of one side of the trigger plate, and a docking groove is opened at the center of one side of the mounting shell away from the B-pillar body, the docking plate and the docking groove are arranged correspondingly, and the docking groove is located between the limit blocks at both ends.

[0011] Optionally, the buffer component includes a base plate and a rotating seat, the rotating seat is rotatably installed at one end of the mounting groove through a torsion spring mechanism, a plurality of universal buffer mechanisms are arranged between the base plate and the rotating seat, and the universal buffer mechanism is composed of a plurality of universal clamps and a plurality of universal balls, one end of the universal clamp is movably connected to the universal ball, and a plurality of V-shaped rods are fixedly installed between the other end of the universal clamp and the universal ball.

[0012] Optionally, the extended energy absorbing mechanism is composed of an upper extension seat and a lower extension seat, the upper surface of the upper extension seat is inclined, and multiple groups of through holes are opened on both sides of the energy absorbing cavity. The extended energy absorbing mechanism is located inside the through holes, and multiple groups of rubber rods are arranged between the upper extension seat and the lower extension seat. Multiple groups of second buffer steel bars are correspondingly arranged around the outer side of the multiple groups of rubber rods, and the second buffer steel bars are fixedly installed between the upper extension seat and the lower extension seat.

[0013] Optionally, the driving mechanism includes two groups of connecting plates, the two groups of connecting plates are rotatably connected to opposite sides of two adjacent groups of lower extension seats, a top plate is rotatably connected between the two groups of connecting plates, the top plate is fixedly installed inside the energy absorbing cavity, and both ends of opposite sides of the two adjacent groups of lower extension seats are fixedly installed with guide mechanisms; The guide mechanism includes a positioning block and a guide rod. The positioning block is fixedly installed inside the energy absorption cavity. Multiple groups of buffer rods are fixedly installed between the positioning block and the guide rod, and the multiple groups of buffer rods are relatively inclined, so that the multiple groups of buffer rods are combined to form an X-shaped arrangement. Guide sleeves are slidably provided on the outer sides of both ends of the guide rods, and the guide sleeves are fixedly connected to the lower extension seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. First, by designing an energy-absorbing shell with an energy-absorbing cavity, the energy-absorbing shell can first help the B-pillar body absorb the collision force, thereby reducing the collision force in advance, making the B-pillar body have an energy-absorbing effect, and further improving the strength of the B-pillar body.

[0015] 2. Through the design of the hole protection component, when the energy-absorbing shell is dented by a collision, the two sets of extended protection plates in the hole protection component can be close to the cable hole to enhance the strength of the cable hole. Therefore, it can effectively avoid reducing the side collision strength of the car body due to the opening of the cable hole.

[0016] 3. Through the design of the first auxiliary energy absorbing component, the first auxiliary energy absorbing component can receive the collision force before the energy absorbing shell. When the first auxiliary energy absorbing component is hit, multiple groups of expansion shells extend and unfold, and at the same time multiple groups of buffer components unfold to wrap and protect the area of ​​the B-pillar body that is not wrapped by the first auxiliary energy absorbing component in its initial state. In addition, through the specially designed buffer components and the first auxiliary energy absorbing component, the collision force can be effectively dispersed, thereby reducing the collision force and effectively improving the side collision of the vehicle body.

[0017] 4. Through the design of the first auxiliary energy absorbing component, the hole protection component and the second auxiliary energy absorbing component, multiple structures have the advantages of buffering and dispersing collision force, thereby greatly improving the side collision strength of the vehicle body.

[0018] 5. The first auxiliary energy absorbing component, the second auxiliary energy absorbing component and the hole protection component are all used in a force-expanding manner, thereby realizing modular buffering of collision force. When a certain buffer structure is damaged, it can be replaced and repaired in a targeted manner, further reducing the cost of side collision protection of the vehicle body.

[0019] 6. The buffer component and the hole protection component are linked to each other, so that when protecting the vulnerable part of the cable entry hole, the energy absorbing balls are filled into the energy absorbing shell at the same time, thereby further improving the energy absorbing effect of the energy absorbing shell.

[0020] 7. Through the design of the first auxiliary energy absorption component, the second auxiliary energy absorption component, the buffer component and the hole protection component, a multi-layered and mutually complementary buffering function is achieved, thereby effectively improving the strength of the B-pillar body and effectively dispersing and reducing the collision force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure provided by the present invention; Figure 2 It is a schematic diagram of the energy absorbing shell structure provided by the present invention; Figure 3 It is a schematic diagram of the structure of the extended protection plate provided by the present invention; Figure 4 It is a schematic diagram of the bending groove structure provided by the present invention; Figure 5 It is a schematic diagram of the structure of the energy absorbing ball storage box provided by the present invention; Figure 6 It is a schematic diagram of the structure of the connecting plate provided by the present invention; Figure 7 It is a schematic diagram of the structure of the lower extension seat provided by the present invention; Figure 8 The present invention provides Figure 7 A schematic diagram of the enlarged structure at point A; Fig. 9 The present invention provides Figure 7 A schematic diagram of the enlarged structure at B; Fig.10 It is a schematic diagram of the installation shell structure provided by the present invention; Fig.11 It is a schematic diagram of the extended shell structure provided by the present invention; Fig.12 It is a schematic diagram of the structure of the driving spring provided by the present invention; Fig.13 It is a schematic diagram of the structure of the buffer component provided by the present invention; Fig.14 It is a schematic diagram of the structure of the trigger plate provided by the present invention; Fig.15 The present invention provides Fig.14 A schematic diagram of the enlarged structure at C; Fig.16 It is a schematic diagram of the trigger rope structure provided by the present invention; Fig.17 The present invention provides Fig.16 A schematic diagram of the structure at D of FIG. Fig.18 It is a schematic diagram of the top rod structure provided by the present invention.

[0023] In the figure: 1, energy absorbing shell; 2, B-pillar body; 3, hole protection assembly; 4, first auxiliary energy absorbing assembly; 5, second auxiliary energy absorbing assembly; 6, wiring hole; 7, groove; 8, limit bolt; 9, buffer assembly; 10, side mounting plate; 11, docking groove; 12, limit block; 13, linkage rod; 201, B-pillar body; 202, lower support plate; 203, upper support plate; 301, extension protection plate; 302, first energy absorbing plate; 303, bending groove; 401, extension shell; 402, trigger plate; 403, mounting shell; 404, buffer component; 4041, bottom plate; 4042, universal clamp; 4043, universal ball; 4044, V-shaped rod; 404 5. Rotating seat; 405. Trigger component; 4051. Drive spring; 4052. Trigger rope; 4053. Push rod; 4054. Storage shell; 4055. Return spring; 406. Guide groove; 407. Docking plate; 408. First buffer steel bar; 409. Rubber pad; 501. Lower extension seat; 502. Guide mechanism; 5021. Positioning block; 5022. Buffer rod; 5023. Guide rod; 5024. Guide sleeve; 503. Connecting plate; 504. Upper extension seat; 505. Push plate; 506. Second buffer steel bar; 507. Rubber rod; 901. Jet pipe; 902. Plug; 903. Pull rope; 904. Energy-absorbing ball storage box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 18 The side collision energy absorption structure of an electric vehicle shown in the figure comprises: The B-pillar body 2 is composed of a B-pillar body 201, a lower support plate 202 and an upper support plate 203. The B-pillar body 201 is disposed between the lower support plate 202 and the upper support plate 203, and the B-pillar body 201 is disposed in an arc shape; An energy absorbing shell 1 is arranged at the center of one side of the main body B, and an energy absorbing cavity is opened on one side of the energy absorbing shell 1; like Figures 1 to 18As shown, by the design of opening an energy absorbing cavity on one side of the energy absorbing shell 1, the energy absorbing shell 1 can rely on the energy absorbing cavity to first absorb the collision force, thereby alleviating the collision force on the B-pillar body 201, thereby effectively improving the side collision strength of the vehicle body.

[0026] A hole protection component 3, wherein the hole protection component 3 is provided with a plurality of groups, and the plurality of groups of hole protection components 3 are all provided inside the energy absorption cavity, and a plurality of groups of wiring holes 6 are provided on one side of the B-pillar body 2, and the hole protection components 3 and the wiring holes 6 are provided correspondingly; like Figures 1 to 18 As shown, the hole protection component 3 and the cable hole 6 are designed to be arranged correspondingly. Since the hole protection component 3 is arranged inside the energy absorption cavity, when the energy absorption shell 1 is dented by a collision, the hole protection component 3 is triggered to protect the cable hole 6, thereby improving the strength of the cable hole 6. Therefore, the overall strength of the B-pillar body 201 is further improved.

[0027] The first auxiliary energy absorbing assembly 4 is provided with multiple groups, and the first auxiliary energy absorbing assembly 4 is arranged on the other side of the energy absorbing shell 1, and the multiple groups of the first auxiliary energy absorbing assembly 4 are composed of a mounting shell 403, multiple groups of expansion buffer mechanisms and a trigger component 405, the multiple groups of expansion buffer mechanisms are symmetrically arranged on the outside of the mounting shell 403, the trigger component 405 is arranged on the side of the mounting shell 403 away from the energy absorbing shell 1, and the expansion buffer mechanism is transmission-connected with the trigger component 405, so that the expansion buffer mechanism is close to or away from the mounting shell 403 through the trigger component 405; like Figures 1 to 18 As shown, since the expansion buffer mechanism is designed to be close to or away from the mounting shell 403 through the trigger component 405, and the trigger component 405 is arranged on the side of the mounting shell 403 away from the energy absorbing shell 1, it can be seen that the trigger component 405 will be first subjected to the collision force, so that the trigger component 405 can quickly drive the expansion buffer mechanism to be deployed, laid and fitted on the force-bearing surface of the B-pillar body 201, so that it can buffer the collision force, thereby further improving the strength of the B-pillar body 201.

[0028] Through the symmetrically arranged extended buffer mechanisms, the multiple groups of extended buffer mechanisms can be more evenly fitted to the force-bearing surface of the B-pillar body 201 when starting, so that the B-pillar body 201 has a better buffer area.

[0029] The second auxiliary energy absorbing component 5 is provided with multiple groups, and the second auxiliary energy absorbing component 5 is movably arranged inside the energy absorbing shell 1, the second auxiliary energy absorbing component 5 is located between the first auxiliary energy absorbing component 4 and the hole protection component 3, the second auxiliary energy absorbing component 5 is composed of two groups of extended energy absorbing mechanisms and a driving mechanism, the driving mechanism is arranged inside the energy absorbing cavity, the two groups of extended energy absorbing mechanisms are respectively connected to the two ends of the driving mechanism, so that the two groups of extended energy absorbing mechanisms are arranged to be far away from or close to each other through the driving mechanism.

[0030] like Figures 1 to 18 As shown, since the two groups of extended energy absorbing mechanisms are designed to be arranged away from or close to each other through the driving mechanism, the driving mechanism is arranged inside the energy absorbing cavity. Therefore, when the energy absorbing shell 1 is collided and deformed, the driving mechanism will be driven by the depression of the energy absorbing shell 1, thereby driving the extended energy absorbing mechanism, so that the ends of the two groups of extended energy absorbing mechanisms are moved away from each other and deployed, and are laid and attached to the force-bearing surface of the B-pillar body 201 at the same time as the first auxiliary energy absorbing component 4, thereby further improving the effect of the B-pillar body 201 in buffering collision force.

[0031] It should be noted that the first auxiliary energy absorbing component 4, the second auxiliary energy absorbing component 5 and the hole protection component 3 mentioned above are all used in a force-expanding manner, thereby realizing modular buffering of collision force. When a certain buffer structure is damaged, targeted replacement and repair can be carried out, further reducing the cost of side collision protection of the vehicle body.

[0032] Furthermore, the hole protection assembly 3 includes two groups of extension protection plates 301, and multiple groups of avoidance holes are opened on both sides of the energy absorption cavity. The extension protection plates 301 are slidably installed inside the avoidance holes. The extension protection plates 301 are arranged correspondingly to the wiring holes 6, and a groove 7 is opened at one end of the extension protection plate 301, and the groove 7 is arranged correspondingly to the wiring holes 6; like Figures 1 to 18 As shown, by designing a groove 7 at one end of the extended protection plate 301, when the extended protection plate 301 is close to the cable hole 6, the groove 7 will surround the cable hole 6, which can avoid bending the cable on the cable hole 6 and exposing the wires.

[0033] Furthermore, one side of the B-pillar body 201 is detachably connected with multiple groups of limiting bolts 8 through threads, and every two groups of limiting bolts 8 are symmetrically arranged, the limiting bolts 8 are arranged close to the wiring hole 6, and a limiting groove is provided at one end of the extended protection plate 301, and the limiting groove is arranged corresponding to the limiting bolt 8; the ends of the two groups of extended protection plates 301 close to each other are fixedly installed with first energy absorbing plates 302, the two groups of first energy absorbing plates 302 are arranged in a corresponding inclination, and the two groups of first energy absorbing plates 302 are fixedly arranged with each other, and the upper surface of the connection of the two groups of first energy absorbing plates 302 is provided with a bending groove 303, and the connection of the two groups of first energy absorbing plates 302 is fixedly connected to the inside of the energy absorbing cavity; like Figures 1 to 18As shown, through the design of the corresponding setting of the limit groove and the limit bolt 8, the moving distance of the extended protection plate 301 can be limited by the limit bolt 8, so as to avoid excessive movement of the extended protection plate 301, which will cause the line on the wiring hole 6 to be bent. Secondly, it can also ensure that when the two groups of first energy absorption plates 302 are squeezed by the collision force, the connection between the two groups of first energy absorption plates 302 can maintain a small bending, thereby achieving the effect of buffering the collision force.

[0034] Specifically, Figures 1 to 5 As shown, a plurality of buffer components 9 are arranged on the top of the energy absorbing cavity, and the buffer components 9 are connected to the first energy absorbing plate 302 .

[0035] Specifically, the buffer assembly 9 mentioned above is composed of an energy absorbing ball storage box 904 and two groups of injection pipes 901. The two groups of injection pipes 901 are symmetrically arranged on one side of the energy absorbing ball storage box 904, and the energy absorbing ball storage box 904 is arranged at the top of the energy absorbing cavity. The two groups of injection pipes 901 are connected to the interior of the energy absorbing ball storage box 904, and a plug 902 is engaged at the opening of the injection pipe 901, and a pull rope 903 is fixedly installed on the outside of the plug 902. A side mounting plate 10 is fixedly installed on one end of the upper surface of the first energy absorbing plate 302, and the side mounting plate 10 is fixedly connected to the pull rope 903.

[0036] It should be noted that the energy absorbing ball storage box 904 is used in the form of pneumatic injection, so that when the pull rope 903 pulls open the plug 902, the energy absorbing ball storage box 904 uses pneumatic pressure to inject the stored energy absorbing balls out of the injection tube 901, thereby filling the energy absorbing cavity and improving the energy absorbing shell 1's effect of buffering collision force.

[0037] Exemplarily, the energy absorbing ball storage box 904 mentioned above is used in a pneumatic spraying manner, which is consistent with the pneumatic tank adopted in the existing mature technology of hand salutes. Therefore, those skilled in the art should know how to install and use the energy absorbing ball storage box 904 to realize the energy absorbing balls being ejected to fill the energy absorbing cavity. Therefore, the present invention will not be elaborated here.

[0038] Further, the multiple groups of expansion buffer mechanisms are composed of multiple groups of expansion shells 401, and the multiple groups of expansion shells 401 are arranged to slide with each other, and storage grooves are provided at both ends of the installation shell 403, and one group of expansion shells 401 is slidably installed inside the storage groove, and the multiple groups of expansion shells 401 are connected to the trigger component 405, so that the multiple groups of expansion shells 401 are elastically connected to each other through the trigger component 405, and the multiple groups of expansion shells 401 are provided with installation grooves on one side close to the B-pillar body 201, and the buffer component 404 is provided inside the installation groove; like Figures 1 to 18As shown, through the design of multiple groups of expansion shells 401 being arranged to slide with each other, the multiple groups of expansion shells 401 can be consistent with the multi-section extension rod structure of the existing mature technology and can extend a longer distance, so that the multiple groups of expansion shells 401 can be well contacted and laid at a width consistent with the B-pillar body 201, therefore, the collision force can be better absorbed and buffered.

[0039] Further, the trigger component 405 includes multiple groups of trigger ropes 4052 and multiple groups of drive springs 4051, the trigger ropes 4052 are fixedly connected to another group of expansion shells 401, the drive spring 4051 is arranged between two adjacent groups of expansion shells 401, a guide groove 406 is provided at the center of the installation shell 403, multiple groups of storage grooves are connected to the inside of the guide groove 406, the trigger rope 4052 is located inside the guide groove 406, and both ends of one side of the inside of the guide groove 406 are slidably connected with the storage shell 4054, and a sliding groove is provided at one end of the storage shell 4054, and a reset spring 4055 is fixedly installed at one end of the inside of the sliding groove, a push rod 4053 is slidably connected inside the sliding groove, one end of the push rod 4053 is fixedly connected to the reset spring 4055, the push rod 4053 is arranged between the outer side of the trigger rope 4052 and one end of the guide groove 406, and both ends of both sides of the inside of the guide groove 406 are fixedly installed with limit blocks 12; like Figures 1 to 18 As shown, by the design that the driving spring 4051 is set between two adjacent groups of expansion shells 401, the two groups of expansion shells 401 will automatically move away from each other, so that the trigger rope 4052 only needs to drive the group of expansion shells 401 at the end to achieve the mutual nesting and storage of multiple groups of expansion shells 401 and instantaneous expansion.

[0040] Secondly, through the design of the push rod 4053 and the limit block 12, the limit block 12 can limit the position of the push rod 4053, so that when the multiple groups of expansion shells 401 are stored in each other, it is not easy to automatically unfold. Therefore, when the push rod 4053 slides into the sliding groove, the force of the driving spring 4051 is released, and the multiple groups of expansion shells 401 can be quickly unfolded to cover the force-bearing surface of the B-pillar body 201.

[0041] Further, docking plates 407 are fixedly installed at the four corners of one side of the mounting shell 403, and rubber pads 409 are fixedly installed on the side of the multiple groups of docking plates 407 away from the B-pillar body 201. The side of the mounting shell 403 away from the B-pillar body 201 is elastically connected to the trigger plate 402 through the rubber pads 409, and multiple groups of first buffer steel bars 408 are correspondingly arranged around the outer side of the rubber pads 409, and the multiple groups of first buffer steel bars 408 are fixedly installed between the docking plates 407 and the trigger plate 402. The docking plate 407 is fixedly installed at the center of one side of the trigger plate 402, and a docking groove 11 is opened at the center of one side of the mounting shell 403 away from the B-pillar body 201. The docking plate 407 and the docking groove 11 are arranged correspondingly, and the docking groove 11 is located between the limit blocks 12 at both ends; like Figures 1 to 18 As shown, by designing that the docking slot 11 is located between the two groups of limit blocks 12, when the trigger plate 402 is collided, it will drive the docking plate 407 into the docking slot 11, causing it to squeeze the two groups of ejector rods 4053, thereby achieving instant release of multiple groups of expansion shells 401.

[0042] It should be noted that, through the design of the trigger plate 402, the force-bearing area of ​​the trigger plate 402 is relatively large, so that the docking plate 407 can enter the docking groove 11 more accurately, so that the expansion shell 401 can be easily unfolded.

[0043] Secondly, through the design of multiple sets of first buffer steel bars 408 and rubber pads 409, when the trigger plate 402 is collided and approaches the mounting shell 403, the multiple sets of first buffer steel bars 408 and rubber pads 409 rely on their own elastic properties to effectively alleviate the collision force, thereby better improving the strength of the B-pillar body 201.

[0044] Specifically, Figures 1 to 18 As shown, linkage rods 13 are fixedly installed between the multiple groups of trigger plates 402 set above.

[0045] Through the design of the linkage rod 13, the trigger plate 402 located at the first collision position on the outer arc surface of the B-pillar body 201 can synchronously drive the remaining multiple groups of trigger plates 402 when being collided and squeezed, so as to realize the synchronous expansion of multiple groups of expansion shells 401 at multiple positions, thereby more effectively improving the strength of the B-pillar body 201.

[0046] Further, the buffer component 404 includes a bottom plate 4041 and a rotating seat 4045, the rotating seat 4045 is rotatably installed at one end of the installation slot through a torsion spring mechanism, a plurality of sets of universal buffer mechanisms are arranged between the bottom plate 4041 and the rotating seat 4045, and the universal buffer mechanisms are composed of a plurality of sets of universal clamps 4042 and a plurality of sets of universal balls 4043, one end of the universal clamp 4042 is movably connected to the universal ball 4043, and a plurality of sets of V-shaped rods 4044 are fixedly installed between the other end of the universal clamp 4042 and the universal ball 4043; like Figures 1 to 18 As shown, through the design of active connection between one end of the universal clamp 4042 and the universal ball 4043, when the expansion shell 401 is unfolded, multiple sets of universal buffer mechanisms are instantly unfolded through the torsion spring mechanism and contact the force-bearing surface of the B-pillar body 201. When the side of the vehicle body is subjected to force and impact at a fast speed, in order to prevent the universal buffer mechanism from being unable to unfold normally and contact the force-bearing surface of the B-pillar body 201, a multi-section movable universal ball 4043 and a universal clamp 4042 are designed at this time, which can solve this problem well, thereby ensuring that the universal clamp 4042, the universal ball 4043 and multiple sets of V-shaped rods 4044 can support the rotating seat 4045, so that a buffer area exists between the expansion shell 401 and the B-pillar body 201.

[0047] It should be noted that the movable connection between the universal clamp 4042 and the universal ball 4043 mentioned above is used in a damping universal rotation manner, and the damping force is sufficient to prevent the universal clamp 4042 and the universal ball 4043 from loosening, and to ensure that the universal clamp 4042 and the universal ball 4043 can move relatively when encountering resistance, thereby better ensuring the formation of the buffer area.

[0048] It should be noted that the multiple groups of V-shaped rods 4044 connected between the universal clamp 4042 and the universal ball 4043 are arranged in a circular and equidistant manner.

[0049] like Figures 1 to 18 As shown, through the design of multiple groups of V-shaped rods 4044 arranged equidistantly in a ring, the multiple groups of V-shaped rods 4044 have high-strength stability due to their specific shapes, and can effectively reduce the collision force. Secondly, the V-shaped rods 4044 can also rely on their own specific shapes to effectively disperse the collision force, thereby further improving the force strength of the B-pillar body 201.

[0050] Furthermore, the extended energy absorbing mechanism is composed of an upper extension seat 504 and a lower extension seat 501. The upper surface of the upper extension seat 504 is inclined, and multiple sets of through holes are provided on both sides of the energy absorbing cavity. The extended energy absorbing mechanism is located inside the through holes. Multiple sets of rubber rods 507 are provided between the upper extension seat 504 and the lower extension seat 501. Multiple sets of second buffer steel bars 506 are correspondingly provided around the outer sides of the multiple sets of rubber rods 507, and the second buffer steel bars 506 are fixedly installed between the upper extension seat 504 and the lower extension seat 501. like Figures 1 to 18 As shown, through the design that multiple groups of second buffer steel bars 506 are correspondingly arranged around the outer side of multiple groups of rubber rods 507, a high-strength buffer area is provided between the upper extension seat 504 and the lower extension seat 501. It can be seen that when the upper extension seat 504 squeezes the lower extension seat 501, the collision force can be reduced and dispersed by the specific shape of the second buffer steel bars 506 and the rubber rods 507, thereby further improving the strength of the B-pillar body 201.

[0051] Further, the driving mechanism includes two groups of connecting plates 503, the two groups of connecting plates 503 are rotatably connected to the opposite sides of the two adjacent groups of lower extension seats 501, a top plate 505 is rotatably connected between the two groups of connecting plates 503, the top plate 505 is fixedly installed inside the energy absorption cavity, and both ends of the opposite sides of the two adjacent groups of lower extension seats 501 are fixedly installed with guide mechanisms 502; The guide mechanism 502 includes a positioning block 5021 and a guide rod 5023. The positioning block 5021 is fixedly installed inside the energy absorption cavity. A plurality of buffer rods 5022 are fixedly installed between the positioning block 5021 and the guide rod 5023. The plurality of buffer rods 5022 are relatively inclined, so that the plurality of buffer rods 5022 are combined to form an X-shaped arrangement. The outer sides of both ends of the guide rod 5023 are slidably sleeved with guide sleeves 5024, and the guide sleeves 5024 are fixedly connected to the lower extension seat 501. like Figures 1 to 18 As shown, through the design of the top plate 505 rotatably connected between the two groups of connecting plates 503, when the top plate 505 follows the energy-absorbing shell 1 that is concave due to the impact force and approaches the force-bearing surface of the B-pillar body 201, the two groups of connecting plates 503 push the two groups of lower extension seats 501, so that the two groups of lower extension seats 501 expand outward, thereby filling the area not covered by the expansion shell 401, so that the lower extension seats 501 can cooperate with the expansion shell 401 to more comprehensively cover the B-pillar body 201, so that the force-bearing surface of the B-pillar body 201 has a high-strength buffering capacity.

[0052] Specifically, Figure 7As shown, the upper surface of the upper extension seat 504 is inclined, so that when the energy absorbing shell 1 is recessed, the upper surface of the upper extension seat 504 relies on the characteristics of inclined pressure to cooperate with the connecting plate 503 to drive the lower extension seat 501 to move outward, thereby ensuring the normal movement of the lower extension seat 501 and covering the force-bearing surface of the B-pillar body 201.

[0053] It should be noted that, by designing that the multiple groups of buffer rods 5022 are relatively inclined, the multiple groups of buffer rods 5022 cross each other, thereby achieving good dispersion and reduction of collision force. Therefore, the multiple groups of buffer rods 5022 can support the energy absorbing shell 1 and prevent the energy absorbing shell 1 from being easily dented over a large area.

[0054] The above embodiments are only used to help understand the method and core idea of ​​the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A body side collision energy absorption structure of an electric vehicle, characterized in that: include: A B-pillar body (2), the B-pillar body (2) being composed of a B-pillar body (201), a lower support plate (202) and an upper support plate (203), the B-pillar body (201) being arranged between the lower support plate (202) and the upper support plate (203), and the B-pillar body (201) being arranged in an arc shape; An energy absorbing shell (1), the energy absorbing shell (1) being arranged at the center of one side of the main body B, and an energy absorbing cavity being provided on one side of the energy absorbing shell (1); A hole protection component (3), wherein the hole protection component (3) is provided with a plurality of groups, and the plurality of groups of hole protection components (3) are all arranged inside the energy absorption cavity, and a plurality of groups of wiring holes (6) are provided on one side of the B-pillar body (2), and the hole protection component (3) and the wiring holes (6) are arranged correspondingly; A first auxiliary energy absorbing component (4), wherein a plurality of groups of the first auxiliary energy absorbing components (4) are provided, and the first auxiliary energy absorbing components (4) are provided on the other side of the energy absorbing shell (1), and the plurality of groups of the first auxiliary energy absorbing components (4) are composed of a mounting shell (403), a plurality of groups of expansion buffer mechanisms and a trigger component (405), the plurality of groups of the expansion buffer mechanisms are symmetrically arranged on the outside of the mounting shell (403), the trigger component (405) is arranged on a side of the mounting shell (403) away from the energy absorbing shell (1), and the expansion buffer mechanism is transmission-connected to the trigger component (405), so that the expansion buffer mechanism approaches or moves away from the mounting shell (403) through the trigger component (405); A second auxiliary energy absorbing assembly (5), wherein the second auxiliary energy absorbing assembly (5) is provided in a plurality of groups, and the second auxiliary energy absorbing assembly (5) is movably arranged inside the energy absorbing shell (1), the second auxiliary energy absorbing assembly (5) is located between the first auxiliary energy absorbing assembly (4) and the hole protection assembly (3), the second auxiliary energy absorbing assembly (5) is composed of two groups of extending energy absorbing mechanisms and a driving mechanism, the driving mechanism is arranged inside the energy absorbing cavity, and the two groups of extending energy absorbing mechanisms are respectively connected to two ends of the driving mechanism, so that the two groups of extending energy absorbing mechanisms are arranged to be separated from or close to each other through the driving mechanism.

2. The side impact energy absorption structure of an electric vehicle according to claim 1, characterized in that: The hole protection assembly (3) comprises two groups of extension protection plates (301), a plurality of avoidance holes are provided on both sides of the energy absorption cavity, the extension protection plates (301) are slidably mounted inside the avoidance holes, the extension protection plates (301) are arranged correspondingly to the wiring holes (6), and a groove (7) is provided at one end of the extension protection plate (301), and the groove (7) is arranged correspondingly to the wiring holes (6).

3. The side impact energy absorption structure of an electric vehicle according to claim 2, characterized in that: One side of the B-pillar body (201) is detachably connected to a plurality of groups of limit bolts (8) via threads, and every two groups of limit bolts (8) are symmetrically arranged, the limit bolts (8) are arranged close to the wiring holes (6), and one end of the extended protection plate (301) is provided with a limit slot, and the limit slot is arranged corresponding to the limit bolts (8).

4. The side impact energy absorption structure of an electric vehicle according to claim 3, characterized in that: A first energy absorbing plate (302) is fixedly mounted on one end of the two groups of extended protection plates (301) close to each other, the two groups of the first energy absorbing plates (302) are arranged in a corresponding tilted manner, and the two groups of the first energy absorbing plates (302) are fixedly arranged to each other, a bending groove (303) is provided on the upper surface of the connection between the two groups of the first energy absorbing plates (302), and the connection between the two groups of the first energy absorbing plates (302) is fixedly connected to the inside of the energy absorbing cavity.

5. The side impact energy absorption structure of an electric vehicle according to claim 4, characterized in that: The plurality of groups of expansion buffer mechanisms are composed of a plurality of groups of expansion shells (401), and the plurality of groups of expansion shells (401) are arranged to slide with each other, and storage grooves are provided at both ends of the installation shell (403), and one group of expansion shells (401) is slidably installed inside the storage grooves. The plurality of groups of expansion shells (401) are connected to the trigger component (405), so that the plurality of groups of expansion shells (401) are elastically connected with each other through the trigger component (405), and the plurality of groups of expansion shells (401) are provided with installation grooves on one side close to the B-pillar body (201), and the buffer component (404) is arranged inside the installation grooves.

6. The side impact energy absorption structure of an electric vehicle according to claim 5, characterized in that: The trigger component (405) comprises a plurality of groups of trigger ropes (4052) and a plurality of groups of drive springs (4051). The trigger ropes (4052) are fixedly connected to another group of expansion shells (401). The drive springs (4051) are arranged between two adjacent groups of expansion shells (401). A guide groove (406) is provided at the center of the interior of the installation shell (403). The plurality of groups of storage grooves are all connected to the interior of the guide groove (406). The trigger ropes (4052) are located inside the guide groove (406), and the interior of the guide groove (406) is connected to the guide groove (406). Both ends of the side are slidably connected with a storage shell (4054), and one end of the storage shell (4054) is provided with a sliding groove, and a return spring (4055) is fixedly installed at one end inside the sliding groove, and a push rod (4053) is slidably connected inside the sliding groove, and one end of the push rod (4053) is fixedly connected to the return spring (4055), and the push rod (4053) is arranged between the outer side of the trigger rope (4052) and one end of the guide groove (406), and both ends of both sides of the guide groove (406) are fixedly installed with limit blocks (12).

7. The side impact energy absorption structure of an electric vehicle according to claim 6, characterized in that: A docking plate (407) is fixedly mounted on the four corners of one side of the mounting shell (403); a plurality of groups of the docking plates (407) are fixedly mounted on the side away from the B-pillar body (201); a trigger plate (402) is elastically connected to the side of the mounting shell (403) away from the B-pillar body (201) via the rubber pad (409); a plurality of groups of first buffer steel bars (408) are correspondingly arranged around the outer side of the rubber pad (409); and the plurality of groups of first buffer steel bars (408) are fixedly mounted between the docking plate (407) and the trigger plate (402); a docking plate (407) is fixedly mounted on the center of one side of the trigger plate (402); a docking groove (11) is provided at the center of one side of the mounting shell (403) away from the B-pillar body (201); the docking plate (407) and the docking groove (11) are arranged correspondingly; and the docking groove (11) is located between the limit blocks (12) at both ends.

8. The side impact energy absorption structure of an electric vehicle according to claim 7, characterized in that: The buffer component (404) comprises a base plate (4041) and a rotating seat (4045); the rotating seat (4045) is rotatably mounted on one end of the mounting groove via a torsion spring mechanism; a plurality of sets of universal buffer mechanisms are arranged between the base plate (4041) and the rotating seat (4045); the universal buffer mechanisms are composed of a plurality of sets of universal clamps (4042) and a plurality of sets of universal balls (4043); one end of the universal clamp (4042) is movably connected to the universal ball (4043); and a plurality of sets of V-shaped rods (4044) are fixedly mounted between the other end of the universal clamp (4042) and the universal ball (4043).

9. The side impact energy absorption structure of an electric vehicle according to claim 8, characterized in that: The extending energy absorbing mechanism is composed of an upper extending seat (504) and a lower extending seat (501); the upper surface of the upper extending seat (504) is arranged in an inclined manner; a plurality of through holes are provided on both sides of the interior of the energy absorbing cavity; the extending energy absorbing mechanism is located inside the through holes; a plurality of rubber rods (507) are provided between the upper extending seat (504) and the lower extending seat (501); a plurality of second buffer steel bars (506) are correspondingly provided around the outer sides of the plurality of rubber rods (507); and the second buffer steel bars (506) are fixedly installed between the upper extending seat (504) and the lower extending seat (501).

10. The side impact energy absorption structure of an electric vehicle according to claim 9, characterized in that: The driving mechanism comprises two groups of connecting plates (503), the two groups of connecting plates (503) are rotatably connected to opposite sides of two adjacent groups of lower extension seats (501), a top plate (505) is rotatably connected between the two groups of connecting plates (503), the top plate (505) is fixedly installed inside the energy absorption cavity, and guide mechanisms (502) are fixedly installed at both ends of opposite sides of the two adjacent groups of lower extension seats (501); The guide mechanism (502) comprises a positioning block (5021) and a guide rod (5023); the positioning block (5021) is fixedly mounted inside the energy absorption cavity; a plurality of groups of buffer rods (5022) are fixedly mounted between the positioning block (5021) and the guide rod (5023); and the plurality of groups of buffer rods (5022) are arranged in a relatively inclined manner, so that the plurality of groups of buffer rods (5022) are combined to form an X-shaped arrangement; guide sleeves (5024) are slidably sleeved on the outer sides of both ends of the guide rod (5023); and the guide sleeves (5024) are fixedly connected to the lower extension seat (501).

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