High-protection anti-collision chassis structure of new energy automobile

Abstract

The invention relates to a high-protection anti-collision chassis structure of a new energy automobile, and belongs to the technical field of anti-collision chassis. Comprising a chassis, a supporting assembly is fixedly mounted at the top of the chassis, and a filling assembly is arranged at the top of the supporting assembly; the support assembly includes a front beam. According to the device, when a vehicle is subjected to side collision, a telescopic rod shrinks to weaken impact force, then a front beam and an X-shaped rod are broken at an induction groove to buffer part of kinetic energy generated by collision, meanwhile, a movable rod moves towards the inclined upper portion to eject a limiting plate open, an ejector rod and an ejector base are driven to eject a rotating block upwards, and then an insertion strip is driven to move upwards; the surrounding area of the battery pack is filled with the foam rubber, the battery pack is prevented from directly bearing impact force, the battery pack is wrapped in an all-dimensional mode, the buffering effect is achieved, the battery pack is prevented from being on fire after collision by means of the characteristic of the flame retardant, and therefore an automobile is effectively protected, and the battery pack is prevented from being on fire after the automobile is impacted; and life danger is caused to a driver.

Description

Technical Field

[0001] This invention relates to the field of anti-collision chassis technology, and in particular to a highly protective anti-collision chassis structure for new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the collision safety of power batteries, as core energy storage components, has become one of the key factors restricting the industry's development. The chassis of a new energy vehicle not only bears the basic functions of supporting the vehicle body and transmitting power, but also needs to provide comprehensive collision protection for the battery pack to prevent safety accidents such as deformation, leakage, and fire after a collision.

[0003] Most of the anti-collision chassis structures for new energy vehicles on the market currently follow the protection approach of traditional fuel vehicles, mainly absorbing collision energy through the deformation of rigid structures such as front anti-collision beams and longitudinal beams. However, the buffering capacity of rigid structures is limited. When the vehicle is involved in a collision on both sides, some anti-collision chassis structures are insufficient in protecting against side collisions. If the collision intensity exceeds a preset threshold, the anti-collision beams built into the doors are prone to irreversible deformation, and the impact force is directly transmitted to the battery pack, causing the battery cells to be squeezed and short-circuited, which can lead to fires or even explosions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a highly protective anti-collision chassis structure for new energy vehicles, so as to solve the problem that when the sides of the existing vehicle are hit by a collision, the anti-collision beams built into the doors are prone to irreversible deformation, and the impact force is directly transmitted to the battery pack, resulting in the compression and short circuit of the battery cells, which in turn leads to fire or even explosion.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A high-protection anti-collision chassis structure for new energy vehicles includes a chassis, a support component fixedly installed on the top of the chassis, and a filling component provided on the top of the support component;

[0007] The support assembly includes a front beam. Support bars are fixedly installed at both ends of one side of the front beam. An X-shaped rod is fixedly installed at the middle position of the support bar near the front beam. A movable rod is provided on the side of the X-shaped rod away from the front beam. The front end of the movable rod is rotatably connected to the inner wall of the support bar. A support seat is provided at the bottom of the end of the movable rod. The support seat is fixedly connected to the support bar. An inclined groove is opened at the front end of the support seat. A support block is fixedly installed on one side of the support seat. A limit plate is rotatably connected to the top of the support block. A limit block is fixedly installed on the other side of the support seat. Springs are fixedly installed at both ends of the top inner wall of the limit block. A top pin is fixedly installed at the other end of the springs. A top rod is provided on the side of the movable rod away from the front beam. The front end of the top rod is rotatably connected to the inner wall of the support bar. A top seat is fixedly installed at the end of the top rod.

[0008] Optionally, multiple sets of connecting plates are fixedly installed on the side of the support bar away from the front beam, connecting strips are fixedly installed on the inner walls of the multiple sets of connecting plates, support frames are fixedly installed on the top of the inner walls of the multiple sets of connecting plates, and telescopic rods are fixedly installed on the inner walls of the multiple sets of connecting plates.

[0009] Optionally, the filling component includes a storage box, which is fixedly connected to the support strip.

[0010] Optionally, a foam box is fixedly installed on the inner wall of the storage box, and a discharge pipe is fixedly installed on the center position of the inner wall of the foam box on the side away from the front beam.

[0011] Optionally, a slot is provided at the center of the discharge pipe, and a strip is movably inserted into the inner wall of the slot, with the bottom of the strip movably inserted into the bottom of the foam box.

[0012] Optionally, a top plate is fixedly connected to the bottom of the insert, and the top plate is located inside the storage box.

[0013] Optionally, a rotating block is fixedly installed at the center of the bottom of the top plate, and the rotating block is rotatably connected to the top seat.

[0014] Optionally, the rotating block is provided with multiple sets of support plates on the side away from the front beam, and a support shell is fixedly installed at the bottom of the support plate.

[0015] Optionally, the top of the support shell is provided with a semi-circular tube, and the sidewall of the semi-circular tube is fixedly connected to multiple sets of support plates.

[0016] Optionally, one end of the semicircular tube is fixedly connected to the discharge pipe.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above solution, a linkage triggering mechanism is set up between the filling component and the support component. The foam adhesive is only released when the collision force reaches a preset threshold, avoiding false triggering caused by driving bumps, and the protection response is more precise. The foam adhesive containing flame retardant is quickly diverted through the discharge pipe and the semi-circular pipe, which can fill the gaps between the support plate, support shell and battery pack in a short time to form an all-round wrapping layer. It can absorb the remaining collision energy through the elastic deformation of the foam, avoiding direct deformation of the battery pack, and block the risk of fire by means of flame retardant properties. This solves the core safety hazards of battery pack fire and leakage after collision of new energy vehicles. The foam box can be pressurized and replenished with foam adhesive periodically through the top screw cap, so as to achieve reuse and improve the durability and economy of the protective structure.

[0019] The first line of defense is formed by setting up telescopic rods, support bars, and connecting plates. In the initial stage of a collision, the elastic deformation of the telescopic rods quickly absorbs part of the impact energy, initially reducing the intensity of impact force transmission. The guide groove design of the front beam and X-shaped rod enables controllable deformation, which not only ensures the structural stability during normal driving, but also releases the constraint through fracture or deformation in the event of a strong collision, guiding the movable rod and top rod to initiate subsequent protective actions, preventing the impact force from directly acting on core components such as the battery pack. The linkage structure of the movable rod and top rod converts the lateral impact force into an upward driving force, dispersing the impact force through mechanical transmission. Combined with the guiding effect of the inclined groove of the support seat, the force transmission is made smoother, further reducing the damage to the core area of ​​the chassis from the collision.

[0020] By setting an X-shaped bar to bridge two sets of support bars, a triangular stable structure is formed. Combined with the multiple fixing designs of the connecting plate and connecting bars, the overall rigidity of the chassis is greatly improved, avoiding structural shaking during normal driving, while enhancing the chassis's resistance to torsion and deformation. The limiting plate, limiting block and spring top pin at the support seat form a double limiting mechanism. The elastic constraint of the limiting plate by the spring top pin firmly fixes the position of the movable rod, preventing the movable rod from being accidentally moved due to driving bumps, ensuring that the protection system only activates in the event of a real collision, and improving the structural reliability during driving. The combination design of the support shell and the semi-circular tube not only provides stable support for the battery pack, but also ensures that the foam adhesive evenly covers the battery pack through the current diversion characteristics of the semi-circular tube and the adhesive space of the support shell, making the protection without dead angles. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a highly protective anti-collision chassis structure for a new energy vehicle.

[0022] Figure 2 A schematic diagram of a high-protection anti-collision chassis structure support component and filling component for a new energy vehicle;

[0023] Figure 3 A schematic diagram showing the disassembled structure of the front beam, support bars, and X-shaped bars;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of the support bar, movable rod, support base, top rod, top seat, and storage box.

[0025] Figure 5 A cross-sectional structural diagram showing the movable rod, support base, inclined groove, support block, limiting plate, limiting block, spring, and top pin.

[0026] Figure 6 A cross-sectional structural diagram showing the storage box, foam box, discharge pipe, slot, insert, top plate, rotating block, top rod, and top seat;

[0027] Figure 7A schematic diagram showing the disassembled structure of the connecting plate, connecting strip, support frame, telescopic rod, and support plate;

[0028] Figure 8 This is a schematic diagram showing the disassembled structure of the support plate, support shell, and semi-circular tube.

[0029] Figure label:

[0030] 100. Chassis; 110. Support assembly; 111. Front beam; 112. Support bar; 113. X-shaped bar; 114. Movable bar; 115. Support seat; 116. Inclined groove; 117. Support block; 118. Limiting plate; 119. Limiting block; 120. Spring; 121. Top pin; 122. Top rod; 123. Top seat; 124. Connecting plate; 125. Connecting bar; 126. Support frame; 127. Telescopic rod; 130. Filling assembly; 131. Storage box; 132. Foam box; 133. Drain pipe; 134. Slot; 135. Insert strip; 136. Top plate; 137. Rotating block; 138. Support plate; 139. Support shell; 140. Semicircular tube. Detailed Implementation

[0031] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0032] like Figures 1 to 7 As shown, an embodiment of the present invention provides a high-protection anti-collision chassis structure for new energy vehicles, including a chassis 100, a support component 110 fixedly installed on the top of the chassis 100, and a filling component 130 provided on the top of the support component 110.

[0033] Support assembly 110 includes a front beam 111. Support bars 112 are fixedly installed at both ends of one side of the front beam 111. An X-shaped rod 113 is fixedly installed at the middle of the support bar 112 near the front beam 111. A movable rod 114 is provided on the side of the X-shaped rod 113 away from the front beam 111. The front end of the movable rod 114 is rotatably connected to the inner wall of the support bar 112. A support seat 115 is provided at the bottom of the end of the movable rod 114. The support seat 115 is fixedly connected to the support bar 112. A sloping groove 116 is formed at the front end of the support seat 115. A support block 117 is fixedly installed on one side of the support seat 115. A limit plate 118 is rotatably connected to the top of the support block 117. A limit block 119 is fixedly installed on the other side of the support seat 115. Springs 119 are fixedly installed at both ends of the inner wall of the top of the limit block 119. 20. A top pin 121 is fixedly installed at the other end of the spring 120. A top rod 122 is provided on the side of the movable rod 114 away from the front beam 111. The front end of the top rod 122 is rotatably connected to the inner wall of the support bar 112. A top seat 123 is fixedly installed at the end of the top rod 122. Multiple sets of connecting plates 124 are fixedly installed on the side of the support bar 112 away from the front beam 111. Connecting bars 125 are fixedly installed on the inner wall of the multiple sets of connecting plates 124. A support frame 126 is fixedly installed on the top of the inner wall of the multiple sets of connecting plates 124. A telescopic rod 127 is fixedly installed on the inner wall of the multiple sets of connecting plates 124. The chassis 100 provides support and fixation for the support bar 112, and the support bar 112 provides support and fixation for the front beam 111. Induction grooves are provided on both sides of the middle position of the front beam 111 to facilitate prevention. After the impact beam becomes ineffective due to severe impact, the front beam 111 is more prone to breakage, causing the support bar 112 to be subjected to lateral compression. Then, the moving rod 114 drives the top rod 122 to work, triggering the filling assembly 130 to protect the battery pack. The X-shaped rod 113 supports the support bars 112 at both ends, while the support bars 112 support and fix the X-shaped rod 113. An induction groove is also provided in the middle of the X-shaped rod 113. The moving rod 114 and the top rod 122 are fixedly connected by a steel bar. The moving rod 114 and the top rod 122 are rotatably connected to the support bar 112 by a pin. The other end of the moving rod 114 rests on the support seat 115. The inclined groove 116 at the front end of the support seat 115 is the same shape as the other end of the moving rod 114. When the moving rod 114... When the side support bar 112 is impacted, the movable rod 114 can move diagonally upward, thereby driving the top rod 122 to move. The limiting plate 118 is rotatably connected to the support block 117 by a pin. The top pin 121 installed in the limiting block 119 is elastically supported by a spring 120, thereby limiting the limiting plate 118 by the top pin 121, thus limiting the movable rod 114 to prevent the movable rod 114 from shaking due to bumps during driving, which would then cause the top rod 122 to shake and accidentally touch the filling component 130. Multiple sets of connecting plates 124 are provided to support the support shell 139. At the same time, multiple sets of connecting plates 124 are fixed by connecting strips 125 to facilitate the replacement of connecting plates 124 after the rear sides of the vehicle are impacted.The connecting plate 124 supports and fixes the support frame 126, which in turn supports and fixes the support shell 139. The telescopic rod 127 fixed between the two connecting plates 124 acts as a buffer in the event of an impact.

[0034] like Figures 1 to 8As shown, the filling component 130 includes a storage box 131, which is fixedly connected to the support bar 112. A foam box 132 is fixedly installed on the inner wall of the storage box 131. A discharge pipe 133 is fixedly installed at the center of the inner wall of the foam box 132 on the side away from the front beam 111. A slot 134 is opened at the center of the discharge pipe 133. An insert 135 is movably inserted into the inner wall of the slot 134. The bottom of the insert 135 is movably inserted into the bottom of the foam box 132. A top plate 136 is fixedly connected to the bottom of the insert 135. The top plate 136 is located inside the storage box 131. A rotating block 137 is fixedly installed at the center of the bottom of the top plate 136. The rotating block 137 is rotatably connected to the top seat 123. Multiple sets of supports are provided on the side of the rotating block 137 away from the front beam 111. A support shell 139 is fixedly installed at the bottom of a plate 138. A semi-circular tube 140 is provided at the top of the support shell 139. The side wall of the semi-circular tube 140 is fixedly connected to multiple sets of support plates 138. One end of the semi-circular tube 140 is fixedly connected to a discharge pipe 133. The storage box 131 is fixedly connected to the support bar 112 by a steel plate and bolts. A rectangular groove is opened at the bottom of the storage box 131 to facilitate the vertical movement of the top plate 136 within the storage box 131. At the same time, the plane size of the rectangular groove in the storage box 131 is smaller than the plane size of the top plate 136 to prevent the top plate 136 from falling out of the storage box 131 during movement. The storage box 131 supports and fixes the foam box 132, which is fixed at a relatively high position inside the storage box 131. To allow the top plate 136 to move the insert 135 within the storage box 131, the top of the foam box 132 is fitted with a screw cap for periodic pressurization and filling of the foam box 132 with foam adhesive. Flame retardants are added to the foam adhesive to effectively protect the battery pack. The insert 135 has a circular groove the size of the inner diameter of the discharge pipe 133. When the insert 135 moves upward, it causes the circular groove to align with the inner tube of the discharge pipe 133, allowing the foam adhesive in the foam box 132 to be discharged through the discharge pipe 133 into the semi-circular pipe 140. The discharge pipe 133, insert 135, and other components are all leak-proof to prevent air and adhesive leakage from the foam box 132. The top plate 136 supports and fixes the rotating block 137. The bottom movable rod 114 rotates and connects to the top seat 123, so that the bottom movable rod 114 drives the top rod 122 to move. The top rod 122 can drive the top seat 123 to lift the rotating block 137 upward, so that the rotating block 137 drives the top plate 136 and the insert 135 to move upward, so that the foam box 132 sprays foam glue outward. The side of the semi-circular tube 140 away from the storage box 131 is semi-circular. At the same time, a groove is opened between the two sets of support plates 138 so that the foam glue can quickly fill the gap between the two sets of support plates 138 after passing through the semi-circular tube 140 from the discharge pipe 133. Some of the foam glue flows back into the support shell 139. There is a gap between the support shell 139 and the support plate 138, which allows the expanded foam glue below to better wrap the battery pack.

[0035] The working principle of the technical solution provided by this invention is as follows:

[0036] When the vehicle is struck from both sides, the impact force first acts on the front beam 111 or connecting plate 124. The telescopic rod 127 between the two connecting plates 124 contracts first, absorbing part of the impact energy through elastic deformation, thus initially weakening the impact force. If the impact force exceeds a preset threshold, the guide groove in the middle of the front beam 111 and the guide groove of the X-shaped rod 113 break or deform, thereby releasing the lateral constraint on the movable rod 114. Moreover, after breaking through the guide groove, not only is the passive effect triggered, but the original shape will also change, forming a shape similar to a triangle, further enhancing protection. At the same time, the displacement of the support bar 112 caused by the impact drives the front end of the movable rod 114 to rotate around the rotation point of the inner wall of the support bar 112. The end of the movable rod 114 moves obliquely upward along the inclined groove 116 of the support seat 115, pushing open the limiting plate 118. When the movable rod 114 moves upward, it drives the top rod 122 to rotate synchronously around the rotation point of the inner wall of the support bar 112 through the steel bar. The top seat 123 at the end of the top rod 122 pushes upward and rotates. The moving block 137 pushes the top plate 136 to slide upward within the storage box 131. The top plate 136 drives the insert strip 135 to move upward simultaneously. When the circular groove on the insert strip 135 coincides with the inner tube of the discharge pipe 133, the sealing state of the foam box 132 is released. Under the action of the preset pressure, the foam adhesive containing flame retardant is quickly injected into the semi-circular pipe 140 through the discharge pipe 133. The semi-circular pipe 140 is connected to multiple sets of support plates 138 through the side wall, so that the foam adhesive is evenly distributed to the gap between the support plate 138 and the support shell 139. The foam adhesive expands rapidly and fills the area around the battery pack. The elastic deformation of the foam absorbs the remaining collision energy, preventing the battery pack from directly bearing the impact force. The expanded foam adhesive flows back into the interior of the support shell 139 at the same time, forming an all-round wrapping of the battery pack. It not only plays a buffering role, but also prevents the battery pack from catching fire after the collision through the flame retardant properties, thereby effectively protecting the car and preventing the battery pack from catching fire after the car is hit, which would endanger the life of the driver.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-protection anti-collision chassis structure for new energy vehicles, characterized in that, Includes a chassis (100), on the top of which a support assembly (110) is fixedly installed, and on the top of the support assembly (110) is a filling assembly (130). The support assembly (110) includes a front beam (111). Support bars (112) are fixedly installed at both ends on one side of the front beam (111). An X-shaped rod (113) is fixedly installed at the middle position on the side of the support bar (112) near the front beam (111). A movable rod (114) is provided on the side of the X-shaped rod (113) away from the front beam (111). The front end of the movable rod (114) is rotatably connected to the inner wall of the support bar (112). A support seat (115) is provided at the bottom of the end of the movable rod (114). The support seat (115) is fixedly connected to the support bar (112). A slanted groove (116) is opened at the front end of the support seat (115). A support block (117) is fixedly installed on one side of the support base (115). A limit plate (118) is rotatably connected to the top of the support block (117). A limit block (119) is fixedly installed on the other side of the support base (115). Springs (120) are fixedly installed at both ends of the inner wall of the top of the limit block (119). A top pin (121) is fixedly installed at the other end of the spring (120). A top rod (122) is provided on the side of the movable rod (114) away from the front beam (111). The front end of the top rod (122) is rotatably connected to the inner wall of the support bar (112). A top seat (123) is fixedly installed at the end of the top rod (122).

2. The high-protection anti-collision chassis structure for new energy vehicles according to claim 1, characterized in that, Multiple sets of connecting plates (124) are fixedly installed on the side of the support bar (112) away from the front beam (111). Connecting bars (125) are fixedly installed on the inner wall of the multiple sets of connecting plates (124). Support frames (126) are fixedly installed on the top of the inner wall of the multiple sets of connecting plates (124). Telescopic rods (127) are fixedly installed on the inner wall of the multiple sets of connecting plates (124).

3. The high-protection anti-collision chassis structure for new energy vehicles according to claim 1, characterized in that, The filling component (130) includes a storage box (131) which is fixedly connected to the support bar (112).

4. The high-protection anti-collision chassis structure for new energy vehicles according to claim 3, characterized in that, A foam box (132) is fixedly installed on the inner wall of the storage box (131), and a discharge pipe (133) is fixedly installed on the center position of the inner wall of the foam box (132) away from the front beam (111).

5. The high-protection anti-collision chassis structure for new energy vehicles according to claim 4, characterized in that, A slot (134) is provided at the center of the discharge pipe (133), and a strip (135) is movably inserted into the inner wall of the slot (134). The bottom of the strip (135) is movably inserted into the bottom of the foam box (132).

6. The high-protection anti-collision chassis structure for new energy vehicles according to claim 5, characterized in that, The bottom of the insert (135) is fixedly connected to a top plate (136), which is located inside the storage box (131).

7. The high-protection anti-collision chassis structure for new energy vehicles according to claim 6, characterized in that, A rotating block (137) is fixedly installed at the center of the bottom of the top plate (136), and the rotating block (137) is rotatably connected to the top seat (123).

8. The high-protection anti-collision chassis structure for new energy vehicles according to claim 7, characterized in that, The rotating block (137) is provided with multiple sets of support plates (138) on the side away from the front beam (111), and a support shell (139) is fixedly installed at the bottom of the support plate (138).

9. The high-protection anti-collision chassis structure for new energy vehicles according to claim 8, characterized in that, The top of the support shell (139) is provided with a semi-circular tube (140), and the side wall of the semi-circular tube (140) is fixedly connected to multiple sets of support plates (138).

10. The high-protection anti-collision chassis structure for new energy vehicles according to claim 9, characterized in that, One end of the semi-circular tube (140) is fixedly connected to the discharge pipe (133).

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