Pure electric light truck chassis

Abstract

The utility model discloses an automobile chassis of a pure electric light truck, which relates to the technical field of new energy automobiles and comprises mounting frames mounted on two sides of a frame; wherein the mounting frame comprises a baffle and side arms on the two sides of the baffle, and the battery pack is mounted on the movable plate; the protection plate on one side of the baffle is in linkage with the movable clamping strips on the side arms, and when the protection plate moves in the direction where the baffle is located, the two movable clamping strips are separated from each other. According to the chassis of the pure electric light truck, the protection plate and the movable clamping strips on the two sides of the battery pack are linked through the linkage structure, so that when the truck is collided, the battery pack on the truck can be turned over inwards, and the problem that when an existing new energy light truck is used, the battery pack cannot be turned over inwards is effectively solved. The technical problem that the battery pack on the side face is prone to colliding with an object is solved, the battery pack is protected, and meanwhile the battery pack can be prevented from making contact with the object by increasing the distance between the battery pack and the side wall of the automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a pure electric light truck chassis. Background Art

[0002] An electric light truck includes a frame and a chassis corresponding to the frame. The chassis generally includes a drive system, a transmission system, a suspension system, a running system, a steering system and a braking system. In the prior art, power batteries are fixedly installed on both sides of the frame. In order to increase the driving range of electric vehicles, the number of batteries is generally increased, which increases the load on the frame, thereby increasing the weight of the entire vehicle, and then correspondingly increases the requirements for the strength and rigidity of the entire vehicle.

[0003] At present, the Chinese patent with the existing patent publication number CN114435103A discloses an electric light truck chassis, wherein the front and rear sides of the frame are respectively provided with a front axle assembly and a rear axle assembly, a front shock absorber is provided between the front axle assembly and the frame, and a rear shock absorber is provided between the rear axle assembly and the frame; a steering gear assembly for controlling the steering of the front wheels is provided on the front side of the frame; two groups of power batteries are provided in the middle of the frame and are respectively placed on the left and right sides of the frame, a transmission shaft assembly and a motor assembly are provided in the middle of the frame, and the motor assembly drives the rear axle assembly through the transmission shaft assembly. The power battery is arranged on the outside of the frame, and the chassis system is centrally arranged on the inside of the frame. Since the space outside the frame is larger than that on the body, there is more space to accommodate the power battery, which improves the feasibility of the arrangement of the electric light truck; since the drive motor is arranged on the inside of the frame, its scheme adjustment is not affected by the power battery, so there are also multiple options for the arrangement of the drive motor.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] Prone to collision (and prone to fire in the event of a collision): In order to ensure the stability of the vehicle body, existing new energy light trucks will choose to install the battery pack on both sides of the chassis, such as Figure 1 and Figure 2 As shown, it is precisely because of this that the battery pack is exposed (the distance between it and the side wall of the car is small, generally 10-20cm). When an object collides with the side of the vehicle, although the battery pack will not contact the object at the first time, as the impact depth continues to increase, the battery pack will directly contact the object, causing the battery pack to explode or naturally, seriously affecting the safety of the battery pack. For this reason, we propose a pure electric light truck chassis. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a pure electric light truck chassis. Due to the linkage structure that links the protective plate and the movable clips on both sides of the battery pack, the vehicle can contact the protective plate on the outside of the vehicle at the first time when a collision occurs, and the protective plate then converts the impact force into a pulling force for the movable clips to move, so that the battery pack flips toward the inside of the vehicle, thereby achieving protection for the battery pack. At the same time, the battery pack can be prevented from contacting objects by increasing the distance between the battery pack and the side wall of the vehicle, thereby solving the technical problem that the battery pack on the side of the existing new energy light truck is prone to collide with objects when in use, causing the battery pack to explode.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A pure electric light truck chassis, the chassis comprising:

[0011] Frame;

[0012] A mounting frame, installed on both sides of the frame, used to support the battery pack;

[0013] Wherein, the mounting frame comprises a baffle, and a side arm is connected to each side of the baffle, and the battery pack is mounted on a movable plate hinged to the baffle, and the movable plate can be folded downward;

[0014] A protective plate is connected to one side of the baffle away from the movable plate, and the protective plate is linked with the movable clip strip on the side arm. When the protective plate moves toward the direction where the baffle is located, the two movable clip strips are separated from each other.

[0015] Preferably, the movable clip and the protective plate are linked via a linkage structure, the linkage structure comprising a linkage toothed belt connected to the inner side of the protective plate, and the linkage toothed belt is inserted into the inside of the side arm and meshes with the gear inside the side arm;

[0016] The transmission toothed belt on the movable clamping strip is meshed with the gear, and when the protective plate is squeezed, the movable clamping strip can be driven to move.

[0017] Preferably, the end of the interlocking toothed belt is connected to the inner wall of the groove via a spring, and the spring is always in a compressed state;

[0018] The elastic force of the spring is consistent with the length direction of the linked toothed belt.

[0019] Preferably, a limiting plate capable of limiting the position of the battery pack is installed on the top of the side arm, and the limiting plate is flush with the edge of the side arm;

[0020] Among them, the bottom of the battery pack is connected with a card edge, and the card edge is in contact with the limiting plate at the top of the side arm.

[0021] Preferably, the movable clamping strip is installed in the groove at the top of the side arm, and under the action of the linkage structure, the movable clamping strip slides in the groove;

[0022] The pressing plate connected to the transmission toothed belt is in an "L" shape, and when the pressing plate is in contact with the inner wall of the groove close to the movable plate, the pressing plate is buckled on the clamping edge of the battery pack;

[0023] When the pressing plate is in contact with the inner wall of the groove on the side away from the movable plate, the pressing plate is separated from the clamping edge.

[0024] Preferably, a limit pin is provided on the inner wall of the pressing plate, and the limit pin corresponds to the limit groove on the clamping edge;

[0025] When the pressing plate is buckled on the card edge, the limiting pin on the inner wall of the pressing plate is plugged into the limiting groove on the card edge correspondingly.

[0026] Preferably, a through hole is opened on the side of the side arm facing the movable plate, and the through hole corresponds one-to-one to the transmission toothed belt on the movable clamping bar. When the movable clamping bar moves toward the direction where the battery pack is located, the transmission toothed belt on the movable clamping bar is plugged into the through hole.

[0027] Preferably, two brackets are installed on the outer side of the frame, and the mounting frame is supported by the brackets;

[0028] Wherein, the side arm is connected to the top of the bracket.

[0029] Preferably, a wire rack is connected to the bottom of one of the side arms, and the wire rack is used to support the wires between the vehicle frame and the battery pack;

[0030] Wherein, a notch is provided on one side of the movable plate close to the wire rack, and the connector on the battery pack corresponds to the notch.

[0031] (III) Beneficial effects

[0032] Since a linkage structure is adopted to link the protective plate and the movable clips on both sides of the battery pack, the car can contact the protective plate on the outside of the car at the first time when a collision occurs, and the protective plate converts the impact force into a pulling force for the movable clips to move, so that the battery pack flips to the inside of the car. Therefore, the technical problem that the battery pack on the side of the existing new energy light truck is prone to collision with objects when in use is effectively solved, thereby realizing the protection of the battery pack. At the same time, the battery pack can be prevented from contacting objects by increasing the distance between the battery pack and the side wall of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0034] Figure 1 A top view of a vehicle chassis in an embodiment of the utility model;

[0035] Figure 2 A side view of a vehicle chassis in an embodiment of the utility model;

[0036] Figure 3 This is a structural diagram of the connection between the mounting frame and the battery pack in the embodiment of the utility model;

[0037] Figure 4 This is a structural diagram of the mounting frame in the embodiment of the utility model;

[0038] Figure 5 This is an exploded structural diagram of the mounting frame in the embodiment of the utility model;

[0039] Figure 6 It is a partial structural diagram of the linkage structure in the embodiment of the utility model;

[0040] Figure 7 It is a partial structural diagram of the side arm and the baffle in the embodiment of the utility model;

[0041] Figure 8 This is a back structural diagram of the movable card strip in the embodiment of the utility model;

[0042] Fig. 9 This is a schematic diagram of the structure of the mounting frame flipped in the embodiment of the utility model;

[0043] Fig.10 It is a schematic diagram of the flip structure after the mounting frame is connected to the battery pack in the embodiment of the utility model.

[0044] Legend: 1. Frame; 2. Mounting frame; 21. Side arm; 22. Baffle; 23. Movable plate; 24. Movable clip; 241. Pressure plate; 242. Transmission belt; 25. Protective plate; 26. Linked belt; 27. Gear; 28. Limiting plate; 29. ​​Groove; 3. Battery pack; 4. Bracket; 5. Wire rack. DETAILED DESCRIPTION

[0045] The embodiment of the present application provides a pure electric light truck chassis, which effectively solves the technical problem that the battery pack on the side of the existing new energy light truck is prone to collide with objects when in use. When the existing new energy light truck is in use, a linkage structure is used to link the protective plate and the active clips on both sides of the battery pack, so that when the car collides, it can contact the protective plate on the outside of the car at the first time, and then the protective plate converts the impact force into the pulling force of the active clip to move the battery pack, so that the battery pack flips to the inside of the car, thereby achieving protection for the battery pack. At the same time, the distance between the battery pack and the side wall of the car can be increased to prevent the battery pack from contacting objects.

[0046] Example 1

[0047] The technical solution in the embodiment of the present application effectively solves the technical problem that the battery pack on the side of the existing new energy light truck is prone to collide with objects when in use. The overall idea is as follows:

[0048] In view of the problems existing in the prior art, the utility model provides a pure electric light truck chassis, which includes a vehicle frame 1, and a mounting frame 2 capable of supporting a battery pack 3 is installed on each side of the frame 1. The battery pack 3 needs to be customized according to the volume and length of the vehicle. The present application mainly focuses on the improvement of the mounting frame 2, and the details are as follows:

[0049] A plate-shaped baffle 22, of course, can also adopt a rod-shaped structure. The plate-shaped structure is adopted to effectively support the battery pack 3 and connect the two side arms 21 together. It is not limited to the plate-shaped structure. The two sides of the baffle 22 are each connected to a side arm 21, and the movable plate 23 is located between the two side arms 21. Figure 4 As shown, the battery pack 3 is mounted on the movable plate 23 hinged to the baffle 22, as shown in FIG. Figure 5 As shown, since the movable plate 23 and the baffle plate 22 are hingedly connected, and the width of the movable plate 23 is greater than the width of the baffle plate 22, the weight of the battery pack 3 distributed on the movable plate 23 is greater than the weight distributed on the baffle plate 22, so that the battery pack 3 can be folded downward when no external force is applied, as shown in FIG. Fig. 9 and Fig.10 As shown, the battery pack 3 is turned over to the inside of the frame 1, and the distance between the battery pack 3 and the outside of the frame 1 is increased, so that the side wall of the vehicle will not collide with the battery pack 3 when a collision occurs, thereby ensuring the safety of the battery pack 3 and preventing the battery pack 3 from exploding or burning due to the collision;

[0050] A protective plate 25 is connected to the side of the baffle 22 away from the movable plate 23, that is, the protective plate 25 is located on the outside of the baffle 22, so that when the side of the frame 1 is hit, it will first contact the protective plate 25, thereby protecting the battery pack 3 and protecting the battery pack 3 behind it.

[0051] The protective plate 25 and the movable clip 24 on the side arm 21 are linked to each other, that is, when the protective plate 25 moves toward the direction of the baffle 22, the two movable clips 24 are separated from each other. Therefore, when the protective plate 25 is hit, the two movable clips 24 can be separated from each other, thereby releasing the battery pack 3, so that the battery pack 3 is flipped along with the movable plate 23.

[0052] In order to connect the mounting frame 2 to the vehicle frame 1, two brackets 4 are arranged on the outside of the vehicle frame 1, and the brackets 4 are connected to the side arms 21, so that the mounting frame 2 can be supported by the brackets 4, thereby connecting the mounting frame 2 to the vehicle frame 1, and the side arms 21 are connected to the top of the brackets 4, as shown in FIG. Figure 3 and Figure 4 shown.

[0053] A wire rack 5 is provided on one of the side arms 21, and the wires between the vehicle frame 1 and the battery pack 3 are supported by the wire rack 5. Figure 3 As shown, a notch is provided on one side of the movable plate 23 close to the wire rack 5, and the connector on the battery pack 3 corresponds to the notch, so that the wire can be connected to the battery pack 3 on the movable plate 23 through the notch on the movable plate 23, and when the movable plate 23 is flipped, the wire can move with the battery pack 3.

[0054] In the specific implementation process, when the side of the vehicle is hit, it first contacts the protective plate 25, and as the protective plate 25 continues to move, the movable clamping strip 24 on the side arm 21 moves away from the battery pack 3, thereby releasing the battery pack 3. Fig.10 As shown, as the protective plate 25 continuously moves toward the direction where the vehicle frame 1 is located, the movable card strip 24 is gradually moved away from the battery pack 3. Since the movable plate 23 and the baffle 22 are hingedly connected, and the width of the movable plate 23 is greater than the width of the baffle 22, the weight of the battery pack 3 distributed on the movable plate 23 is greater than the weight distributed on the baffle 22. In this way, the battery pack 3 can be folded downward when no external force is applied, as shown in FIG. Fig. 9 and Fig.10 As shown, the battery pack 3 is flipped toward the inside of the frame 1. At this time, the distance between the battery pack 3 and the outside of the frame 1 will be increased, so that the side wall of the vehicle will not collide with the battery pack 3 when a collision occurs, thereby ensuring the safety of the battery pack 3 and preventing the battery pack 3 from exploding or burning due to the collision.

[0055] Example 2

[0056] Based on Example 1, the embodiment of the present application provides a linkage structure capable of linking the movable card strip with the protective plate. The overall idea is as follows:

[0057] The linkage structure between the movable card strip 24 and the protective plate 25 includes:

[0058] The interlocking toothed belt 26 is connected to the inner side of the protective plate 25, and the interlocking toothed belt 26 is inserted into the inside of the side arm 21, so that the interlocking toothed belt 26 can be interlocked with the protective plate 25, and when the protective plate 25 is impacted, the interlocking toothed belt 26 will move into the side arm 21, and because the interlocking toothed belt 26 is meshed with the gear 27 inside the side arm 21, as shown in FIG. Figure 4 and Figure 5 As shown, when the linked toothed belt 26 moves, the gear 27 can be driven to rotate;

[0059] Since the transmission belt 242 on the movable clamping strip 24 is meshed with the gear 27, when the protective plate 25 is squeezed, the movable clamping strip 24 can be driven to move, such as Figure 6 As shown, since the gear 27 is installed in the side arm 21 and cannot move but can only rotate, when the gear 27 rotates, it can drive the transmission belt 242 and the pressure plate 241 connected to the transmission belt 242 to move together, thereby controlling the movement of the pressure plate 241 through the movement of the protective plate 25.

[0060] In order to prevent the protective plate 25 from deforming in a non-collision state, a spring is arranged between the end of the interlocking toothed belt 26 and the inner wall of the groove 29, and the spring must be in a spring compression state, and the elastic force is consistent with the length direction of the interlocking toothed belt 26. Only in this way can the protective plate 25 be pushed away from the frame 1 in a non-collision state.

[0061] Example 3

[0062] Based on Example 1, the present application embodiment provides a structure that effectively limits the battery pack, and the overall idea is as follows:

[0063] A limiting plate 28 is installed on the top of the side arm 21 to limit the battery pack 3, and the limiting plate 28 is flush with the edge of the side arm 21, so that the installed battery pack 3 can be limited to prevent the battery pack 3 from shaking left and right; the bottom edge of the battery pack 3 has a circle of card edge, such as Figure 3 The portion that exceeds the battery pack 3 and the card edge fits with the limiting plate 28 at the top of the side arm 21, so that the battery pack 3 can be limited to ensure the position of the battery pack 3 during installation, while preventing the card edge of the battery pack 3 from affecting the flipping of the movable plate 23.

[0064] The movable card strip 24 is installed in the groove 29 at the top of the side arm 21, providing space for the sliding of the movable card strip 24, and the movable card strip 24 can slide in the groove 29 under the action of the linkage structure, such as Fig. 9 and Fig.10As shown, the pressure plate 241 is in an "L" shape, and the width of the pressure plate 241 is greater than the thickness of the limiting plate 28, so when the pressure plate 241 and the inner wall of the groove 29 close to the movable plate 23 are in contact, the pressure plate 241 can extend beyond the limiting plate 28 and be buckled on the card edge of the battery pack 3; and when the pressure plate 241 and the inner wall of the groove 29 away from the movable plate 23 are in contact, the pressure plate 241 is separated from the card edge, thereby releasing the battery pack 3.

[0065] The inner wall of the pressing plate 241 is provided with a limit pin, such as Figure 8 As shown, and the limit pin corresponds to the limit groove on the card edge, such as Figure 3 As shown; when the pressing plate 241 is buckled on the card edge, the limiting pin on the inner wall of the pressing plate 241 is plugged into the limiting groove on the card edge, thereby limiting the position of the battery pack 3.

[0066] like Figure 7 As shown, in order to avoid collision between the transmission toothed belt 242 and the side arm 21 during the movement of the pressure plate 241, two through holes are opened on the side of the side arm 21 facing the movable plate 23, and the through holes correspond one-to-one to the transmission toothed belt 242 on the movable clamping strip 24. When the movable clamping strip 24 moves toward the direction of the battery pack 3, the transmission toothed belt 242 on the movable clamping strip 24 is plugged into the through holes, so that the transmission toothed belt 242 will not collide with the side arm 21.

[0067] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A pure electric light truck chassis, characterized in that: The vehicle chassis includes: Frame (1); A mounting frame (2) is mounted on both sides of the vehicle frame (1) and is used to support the battery pack (3); The mounting frame (2) comprises a baffle (22), and two sides of the baffle (22) are each connected to a side arm (21), and the battery pack (3) is mounted on a movable plate (23) hinged to the baffle (22), and the movable plate (23) can be folded downward; A protective plate (25) is connected to the side of the baffle (22) away from the movable plate (23), and the protective plate (25) is linked to the movable clip (24) on the side arm (21); when the protective plate (25) moves in the direction of the baffle (22), the two movable clips (24) separate from each other.

2. A pure electric light truck chassis as claimed in claim 1, characterized in that: The movable clamping strip (24) and the protective plate (25) are linked via a linkage structure, wherein the linkage structure comprises a linkage toothed belt (26) connected to the inner side of the protective plate (25), and the linkage toothed belt (26) is inserted into the inside of the side arm (21) and meshes with a gear (27) inside the side arm (21); The transmission toothed belt (242) on the movable clamping strip (24) is meshed with the gear (27), and when the protective plate (25) is squeezed, the movable clamping strip (24) can be driven to move.

3. A pure electric light truck chassis as claimed in claim 2, characterized in that: The end of the interlocking toothed belt (26) is connected to the inner wall of the groove (29) via a spring, and the spring is always in a compressed state; The elastic force of the spring is consistent with the length direction of the linked toothed belt (26).

4. A pure electric light truck chassis as claimed in claim 2, characterized in that: A limiting plate (28) capable of limiting the position of the battery pack (3) is installed on the top of the side arm (21), and the limiting plate (28) is flush with the edge of the side arm (21); The bottom of the battery pack (3) is connected with a clamping edge, and the clamping edge is in contact with the limiting plate (28) at the top of the side arm (21).

5. A pure electric light truck chassis as claimed in claim 4, characterized in that: The movable clamping strip (24) is installed in a groove (29) at the top of the side arm (21), and under the action of the linkage structure, the movable clamping strip (24) slides in the groove (29); The pressing plate (241) connected to the transmission toothed belt (242) is in an "L" shape, and when the pressing plate (241) is in contact with the inner wall of the groove (29) close to the movable plate (23), the pressing plate (241) is buckled on the clamping edge of the battery pack (3); When the pressing plate (241) is in contact with the inner wall of the groove (29) on the side away from the movable plate (23), the pressing plate (241) is separated from the clamping edge.

6. A pure electric light truck chassis as claimed in claim 5, characterized in that: The inner wall of the pressing plate (241) is provided with a limiting pin, and the limiting pin corresponds to the limiting groove on the clamping edge; When the pressing plate (241) is buckled onto the card edge, the limiting pin on the inner wall of the pressing plate (241) is correspondingly plugged into the limiting groove on the card edge.

7. A pure electric light truck chassis as claimed in claim 2, characterized in that: A through hole is provided on one side of the side arm (21) facing the movable plate (23), and the through hole corresponds one-to-one with the transmission toothed belt (242) on the movable clamping strip (24); when the movable clamping strip (24) moves in the direction where the battery pack (3) is located, the transmission toothed belt (242) on the movable clamping strip (24) is plugged into the through hole.

8. The pure electric light truck chassis according to claim 1, characterized in that: Two brackets (4) are installed on the outer side of the vehicle frame (1), and the mounting frame (2) is supported by the brackets (4); Wherein, the side arm (21) is connected to the top of the bracket (4).

9. The pure electric light truck chassis according to claim 1, characterized in that: A wire rack (5) is connected to the bottom of one of the side arms (21), and the wire rack (5) supports the wires between the vehicle frame (1) and the battery pack (3); A notch is provided on one side of the movable plate (23) close to the wire rack (5), and the connector on the battery pack (3) corresponds to the notch.

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