Frame system integrated with standby power battery

Abstract

The invention belongs to the technical field of new energy vehicles, and discloses a vehicle frame system integrated with a standby power battery, the vehicle frame system comprises two longitudinal beams, a plurality of cross beams, a main battery pack and an auxiliary battery pack, the two longitudinal beams are oppositely arranged, a mounting position is formed between the longitudinal beams, the cross beams are arranged between the two longitudinal beams and used for connecting the two longitudinal beams, and the main battery pack is connected with the auxiliary battery pack. A containing cavity is formed in each cross beam, the main battery pack is arranged at the installation position, the multiple auxiliary battery packs correspond to the multiple cross beams in a one-to-one mode, and each auxiliary battery pack is arranged in the corresponding containing cavity, so that on the premise that the number of the original battery packs is reduced, more battery packs can be installed on a vehicle frame, and the installation efficiency is improved. According to the vehicle frame system, the number of the battery packs capable of being arranged is increased in the limited space of the vehicle frame, so that the endurance mileage of the pure electric commercial vehicle using the vehicle frame system is prolonged to a certain extent, the probability that the vehicle cannot continue to run due to the fact that the battery packs are lack of electricity is greatly reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of new energy vehicles, and specifically relates to a frame system with an integrated backup power battery. Background Art

[0002] With the country's strong support for new energy vehicles, commercial vehicles powered by pure electricity have fully entered the sales market. They have the advantages of energy saving, environmental protection and low cost of use.

[0003] In order to ensure the cabin volume of pure electric commercial vehicles, the battery packs of pure electric commercial vehicles are usually installed on the frame. However, due to the limited space on the frame, the number of battery packs that can be installed is limited, or the volume of the battery packs that can be installed is limited by the frame or the vehicle's passability. This results in the battery pack's capacity being relatively limited, which affects the range of pure electric commercial vehicles. Therefore, how to arrange more battery packs in a limited space to increase the range of pure electric commercial vehicles has become a technical problem that urgently needs to be solved. Summary of the invention

[0004] The present application provides a frame system with an integrated backup power battery to increase the number of battery packs within the limited space of the frame, thereby increasing the range of a pure electric commercial vehicle and improving the user experience.

[0005] The technical solution adopted in this application is:

[0006] A frame system with integrated backup power battery, comprising:

[0007] A longitudinal beam, wherein two longitudinal beams are arranged opposite to each other and a mounting position is formed between the longitudinal beams;

[0008] A crossbeam, wherein a plurality of the crossbeams are provided, the plurality of crossbeams are provided between the two longitudinal beams and are used to connect the two longitudinal beams, and each of the crossbeams has a containing cavity inside;

[0009] A main battery pack, the main battery pack being arranged at the installation position;

[0010] A secondary battery pack, wherein the secondary battery packs are provided in plurality and are arranged one-to-one corresponding to the plurality of the cross beams, and each of the secondary battery packs is arranged in the corresponding accommodating cavity.

[0011] By adopting the above technical solution, since the auxiliary battery pack is arranged in the accommodating cavity of the crossbeam, more battery packs can be installed on the frame based on the original number of battery packs, so as to increase the number of battery packs that can be arranged in the limited space of the frame, thereby extending the cruising range of the pure electric commercial vehicle using the frame system in the present application to a certain extent, greatly reducing the probability of the vehicle being unable to continue driving due to battery pack depletion, thereby improving the user experience.

[0012] Furthermore, by placing the secondary battery pack in the accommodating cavity and the plurality of cross beams being located in the middle of the longitudinal beam in the length direction, the weight of the frame is mainly distributed in the middle of the frame, thereby improving the maneuverability of the pure electric commercial vehicle.

[0013] At the same time, placing the auxiliary battery pack in the accommodating cavity can also enable the crossbeam to protect the auxiliary battery pack to avoid the situation where the vehicle cannot continue to move forward when the main battery pack is damaged due to the bottoming of the pure electric commercial vehicle. As a result, the pure electric commercial vehicle can still be driven in an emergency when the main battery pack fails, thereby greatly improving the user experience.

[0014] Optionally, a vibration-damping pad is provided in the accommodating cavity, and the vibration-damping pad is located between the accommodating cavity and the secondary battery pack.

[0015] By adopting the above technical solution, since the vibration damping pad is located between the accommodating cavity and the sub-battery pack, the vibration damping pad can reduce the vibration of the sub-battery pack to avoid damage to the sub-battery caused by the vehicle running on bumpy roads, thereby greatly extending the service life of the sub-battery pack; at the same time, due to the presence of the vibration damping pad, a gap is formed between the circumference of the sub-battery pack and the cavity wall of the accommodating cavity, thereby reducing the vibration transmitted to the sub-battery pack by the crossbeam, so as to further reduce the vibration of the sub-battery pack; and, due to the presence of the gap, the difficulty of installing the sub-battery pack is greatly reduced, and the situation that the cavity wall of the accommodating cavity may damage the sub-battery pack when installing the sub-battery pack is avoided, thereby greatly reducing the difficulty of installing the sub-battery pack.

[0016] Optionally, a mica sheet is provided in the accommodating cavity, and the mica sheet is located between the accommodating cavity and the secondary battery pack.

[0017] By adopting the above technical solution, since the secondary battery pack will generate heat when supplying power to the vehicle, by arranging a mica sheet in the accommodating cavity, the heat generated by the secondary battery pack can be quickly transferred to the crossbeam via the mica sheet, so as to improve the heat dissipation effect of the secondary battery pack; at the same time, because the mica sheet is arranged in the accommodating cavity, a gap can also be created between the secondary battery pack and the cavity wall of the accommodating cavity, so as to achieve the effect of vibration isolation and facilitate the installation of the secondary battery pack.

[0018] Optionally, the cross beam includes a beam body and a connecting frame arranged at both ends of the beam body, the connecting frame includes a web and wing plates arranged on both sides of the web, the end of the beam body is spaced apart from the web to form a wiring space between the end of the beam body and the web, and the web is fixedly connected to the longitudinal beam.

[0019] By adopting the above technical solution, a wiring space is formed between the end of the beam body and the web, so that the wiring harness connected to the auxiliary battery pack can pass through the wiring space to increase the regularity of the wiring harness, while increasing the stability of the wiring harness and reducing the difficulty of fixing the wiring harness. The wing plate located at the bottom of the web can also protect the wiring harness to avoid damage to the wiring harness, thereby reducing the failure rate of pure electric commercial vehicles equipped with the frame system in this application.

[0020] Optionally, the beam body includes a C-shaped plate and a support plate fixedly connected to the C-shaped plate by a bolt pair, the support plate and the C-shaped plate together form the accommodating cavity, and the support plate is located below the C-shaped plate, and the support plate is fixedly connected to the wing plate by a bolt pair.

[0021] By adopting the above technical solution, since the support plate is fixedly connected to the C-type plate by a bolt pair, and the support plate is fixedly connected to the wing plate by a bolt pair, the support plate can be disassembled by removing the bolt pair, and the structural strength of the crossbeam is ensured. At the same time, it can also achieve the effect of facilitating the replacement or maintenance of the secondary battery pack in the accommodating cavity.

[0022] Optionally, edges are extended outwardly on both sides of the opening of the C-shaped plate, and the support plate is fixedly connected to the edges by a bolt pair;

[0023] Alternatively, two sides of the support plate are bent toward the side where the C-shaped plate is located to form connecting edges, and the two connecting edges are respectively located on both sides of the C-shaped plate and fixedly connected to the C-shaped plate by a bolt pair.

[0024] By adopting the above technical solution, since edges are extended outward on both sides of the opening of the C-shaped plate, and the support plate is fixedly connected to the edges by a bolt pair, it is easy to assemble the support plate to the C-shaped plate, thereby improving the assembly efficiency of the crossbeam.

[0025] Since connecting edges are provided on both sides of the support plate that are bent toward the side where the C-shaped plate is located, the two connecting edges are respectively located on both sides of the C-shaped plate, thereby reducing the volume of the beam body, so that a larger volume can be reserved between the longitudinal beams for arranging the main battery pack, thereby further extending the vehicle's cruising range.

[0026] Optionally, elastic members are provided at both ends of the support plate, and the elastic members act on the web to apply an elastic force on the support plate in a direction away from the web.

[0027] By adopting the above technical solution, since the support plate is connected to the wing plate through a bolt pair, it is necessary to open corresponding holes on the support plate and the wing plate for the bolts to pass through. By arranging elastic members at both ends of the support plate, the elastic members can adjust the support plate when the support plate is installed, so that the support plate is centered between the two connecting frames, so that the hole structure on the support plate is aligned with the hole structure on the wing plate, so as to achieve the effect of facilitating the fixation of the support plate, thereby greatly improving the replacement efficiency of the auxiliary battery pack.

[0028] Optionally, a force-bearing plate is provided between the elastic member and the support plate, and the force-bearing plate has blocking ribs located above the support plate.

[0029] By adopting the above technical solution, when the support plate needs to be installed when the secondary battery pack is replaced, one end of the support plate is first inserted into one of the connecting frames, and then the end of the support plate is made to contact the force-bearing plate. In order to facilitate the insertion of both ends of the support plate into the two connecting frames, the support plate needs to be tilted so as to apply a thrust to the support plate, and the blocking ribs can block the tilted support plate to avoid the separation of the end of the support plate from the force-bearing plate, so that the elastic member can always act on the end of the support plate to ensure the adjustment effect of the elastic member on the support plate, and at the same time avoid the situation where the support plate cannot be laid flat due to the end of the support plate moving to the top of the force-bearing plate, thereby greatly improving the installation efficiency of the support plate.

[0030] Optionally, a guide rod is provided on the side of the force-bearing plate facing away from the support plate, the guide rod passes through the web, and the longitudinal beam is provided with a through hole for the guide rod to pass through.

[0031] By adopting the above technical solution, since a guide rod is provided on the side of the force-bearing plate away from the supporting plate, the guide rod can guide the force-bearing plate and the elastic member to increase the stability of the elastic member when elastic deformation occurs, and increase the stability of the force-bearing plate when it moves, thereby ensuring the adjustment effect of the elastic member and the force-bearing plate on the supporting plate.

[0032] Optionally, the web is provided with a guide sleeve, and the guide sleeve is sleeved on the outside of the guide rod.

[0033] By adopting the above technical solution, since the web is provided with a guide sleeve, the guide sleeve is sleeved on the outside of the guide rod to increase the guiding area of ​​the guide rod, thereby further increasing the movement stability of the force-bearing plate, and further improving the adjustment effect of the support plate.

[0034] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0035] 1. The vehicle frame system in the present application includes a longitudinal beam, a cross beam, a main battery pack, and a sub-battery pack, wherein two longitudinal beams are relatively arranged, and a mounting position is formed between the longitudinal beams, and a plurality of cross beams are arranged, and the plurality of cross beams are arranged between the two longitudinal beams and are used to connect the two longitudinal beams, and each cross beam has a receiving cavity inside, and the main battery pack is arranged at the mounting position, and a plurality of sub-battery packs are arranged and are arranged one-to-one with the plurality of cross beams, and each sub-battery pack is arranged in a corresponding receiving cavity, and then, under the premise of the original number of battery packs, more battery packs can be installed on the vehicle frame to increase the number of battery packs that can be arranged in the limited space of the frame, thereby extending the cruising range of the pure electric commercial vehicle using the vehicle frame system in the present application to a certain extent, and greatly reducing the probability that the vehicle cannot continue to drive due to battery pack depletion, so as to improve the user experience.

[0036] 2. A vibration-damping pad is provided in the accommodating cavity in the present application, and the vibration-damping pad is located between the sub-battery packs in the accommodating cavity, so that the vibration-damping pad can reduce the vibration of the sub-battery pack to avoid damage to the sub-battery caused by the vehicle running on bumpy roads, thereby greatly extending the service life of the sub-battery pack; at the same time, due to the presence of the vibration-damping pad, a gap is formed between the circumferential surface of the sub-battery pack and the cavity wall of the accommodating cavity, thereby reducing the vibration transmitted to the sub-battery pack by the crossbeam, so as to further reduce the vibration of the sub-battery pack; and, due to the presence of the gap, the difficulty of installing the sub-battery pack is greatly reduced, and the situation that the cavity wall of the accommodating cavity may damage the sub-battery pack when installing the sub-battery pack is avoided, thereby greatly reducing the difficulty of installing the sub-battery pack.

[0037] 3. A mica sheet is provided in the accommodating cavity in the present application, and the mica sheet is located between the accommodating cavity and the auxiliary battery pack. When the auxiliary battery pack is supplying power to the vehicle, the auxiliary battery pack will generate heat. By providing a mica sheet in the accommodating cavity, the heat generated by the auxiliary battery pack can be quickly transferred to the crossbeam via the mica sheet, so as to improve the heat dissipation effect of the auxiliary battery pack. At the same time, because the mica sheet is provided in the accommodating cavity, a gap can also be provided between the auxiliary battery pack and the cavity wall of the accommodating cavity, so as to achieve the effect of vibration isolation and facilitate the installation of the auxiliary battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0039] Figure 1 This is a structural schematic diagram of the frame system described in one embodiment of the present application;

[0040] Figure 2 This is a schematic structural diagram of the crossbeam described in one implementation manner of the present application;

[0041] Figure 3 This is a schematic structural diagram of the crossbeam described in another embodiment of the present application;

[0042] Figure 4 This is a structural schematic diagram of the beam body described in one implementation mode of the present application;

[0043] Figure 5 This is a structural schematic diagram of the beam body in another embodiment of the present application;

[0044] Figure 6 A partial structural cross-sectional view of the crossbeam in one embodiment of the present application;

[0045] Figure 7 for Figure 6 Magnified view of area A.

[0046] Reference numerals:

[0047] 1. Longitudinal beam; 2. Cross beam; 21. Beam body; 211. C-shaped plate; 212. Support plate; 213. Edge; 214. Connecting edge; 215. Wiring space; 22. Connecting frame; 221. Web plate; 222. Wing plate; 223. Elastic member; 224. Load plate; 225. Blocking rib; 226. Guide rod; 227. Guide sleeve; 3. Main battery pack; 4. Auxiliary battery pack; 41. Vibration damping pad; 42. Mica sheet. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0050] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0053] Reference Figures 1 to 7 , discloses a frame system with an integrated backup power battery, which includes a longitudinal beam 1, a cross beam 2, a main battery pack 3 and a sub-battery pack 4, wherein two longitudinal beams 1 are relatively arranged, and a mounting position is formed between the longitudinal beams 1: a plurality of cross beams 2 are arranged, and the plurality of cross beams 2 are arranged between two longitudinal beams 1 and are used to connect the two longitudinal beams 1, and each cross beam 2 has a accommodating cavity inside; the main battery pack 3 is arranged at the mounting position; a plurality of sub-battery packs 4 are arranged and are arranged one-to-one with the plurality of cross beams 2, and each sub-battery pack 4 is arranged in the corresponding accommodating cavity.

[0054] Since the auxiliary battery pack 4 is arranged in the accommodating cavity of the crossbeam 2, more battery packs can be installed on the frame based on the existing number of battery packs, so as to increase the number of battery packs that can be arranged in the limited space of the frame, thereby extending the cruising range of the pure electric commercial vehicle using the frame system in the present application to a certain extent, greatly reducing the probability of the vehicle being unable to continue driving due to battery pack depletion, thereby improving the user experience.

[0055] Furthermore, by arranging the secondary battery pack 4 in the accommodating cavity and the plurality of cross beams 2 being located in the middle of the longitudinal beam 1 in the length direction, the weight of the frame is mainly distributed in the middle of the frame, thereby improving the maneuverability of the pure electric commercial vehicle.

[0056] At the same time, arranging the auxiliary battery pack 4 in the accommodating cavity can also enable the crossbeam 2 to protect the auxiliary battery pack 4, so as to avoid the situation where the vehicle cannot continue to move forward when the main battery pack 3 is damaged due to the bottoming of the pure electric commercial vehicle. As a result, the pure electric commercial vehicle can still be driven in an emergency when the main battery pack 3 fails, thereby greatly improving the user experience.

[0057] It should be noted that the “installation position formed between the longitudinal beams 1 ” mentioned above may be located at the bottom of the longitudinal beam 1 , or the top of the main battery pack 3 installed at the installation position may be flush with the top of the longitudinal beam 1 .

[0058] The present application does not specifically limit the power supply mode of the vehicle by the auxiliary battery pack 4 and the main battery pack 3. Preferably, the main battery pack 3 and the auxiliary battery pack 4 are independent of each other, that is, the auxiliary battery pack 4 constitutes the backup power battery of the vehicle, and both can supply power to the vehicle independently, so that both can drive the vehicle independently, to ensure that the vehicle can still drive when any of the main battery pack 3 and the auxiliary battery pack 4 fails. In other embodiments, the main battery pack 3 and the auxiliary battery pack 4 are also connected in parallel to supply power to the vehicle.

[0059] In a preferred embodiment, referring to Figure 2 and Figure 6 A vibration-damping pad 41 is provided in the accommodating cavity, and the vibration-damping pad 41 is located between the accommodating cavity and the auxiliary battery pack 4, so that the vibration-damping pad 41 can reduce the vibration of the auxiliary battery pack 4, so as to avoid damage to the auxiliary battery caused by the vehicle running on bumpy roads, thereby greatly extending the service life of the auxiliary battery pack 4; at the same time, due to the existence of the vibration-damping pad 41, a gap is formed between the circumferential surface of the auxiliary battery pack 4 and the cavity wall of the accommodating cavity, so as to reduce the vibration of the auxiliary battery pack 4 transmitted from the cross beam 2 to the auxiliary battery pack 4, so as to further reduce the vibration of the auxiliary battery pack 4; and, due to the existence of the gap, the difficulty of installing the auxiliary battery pack 4 is greatly reduced, and the situation that the cavity wall of the accommodating cavity may damage the auxiliary battery pack 4 when installing the auxiliary battery pack 4 is avoided, thereby greatly reducing the difficulty of installing the auxiliary battery pack 4.

[0060] Preferably, the vibration-damping pad 41 is annular and is sleeved on the outside of the secondary battery pack 4 to increase the vibration-damping effect of the vibration-damping pad 41 on the secondary battery pack 4 and increase the stability of the vibration-damping pad 41 .

[0061] In a preferred embodiment, referring to Figure 6 A mica sheet 42 is disposed in the accommodating cavity, and the mica sheet 42 is located between the accommodating cavity and the secondary battery pack 4 .

[0062] It can be understood that one end surface of the mica sheet 42 contacts the cavity wall of the accommodating cavity, and the other end surface of the mica sheet 42 contacts the outer peripheral surface of the secondary battery pack 4 .

[0063] Since the secondary battery pack 4 generates heat when supplying power to the vehicle, by providing a mica sheet 42 in the accommodating cavity, the heat generated by the secondary battery pack 4 can be quickly transferred to the cross beam 2 via the mica sheet 42, so as to improve the heat dissipation effect of the secondary battery pack 4; at the same time, because the mica sheet 42 is provided in the accommodating cavity, a gap can also be created between the secondary battery pack 4 and the cavity wall of the accommodating cavity, so as to achieve the effect of vibration isolation and facilitate the installation of the secondary battery pack 4.

[0064] Furthermore, thermal conductive silicone grease is applied between the mica sheet 42 and the cavity wall of the accommodating cavity and the secondary battery pack 4 to further improve the heat transfer efficiency from the secondary battery pack 4 to the crossbeam 2 , thereby further improving the heat dissipation efficiency of the secondary battery pack 4 .

[0065] In a preferred embodiment, referring to Figure 2 and Figure 3 The cross beam 2 includes a beam body 21 and a connecting frame 22 arranged at both ends of the beam body 21. The connecting frame 22 includes a web 221 and wing plates 222 arranged on both sides of the web 221. The end of the beam body 21 is spaced apart from the web 221 to form a wiring space 215 between the end of the beam body 21 and the web 221. The web 221 is fixedly connected to the longitudinal beam 1.

[0066] Since a wiring space 215 is formed between the end of the beam body 21 and the web 221, the wiring harness connected to the auxiliary battery pack 4 can pass through the wiring space 215 to increase the regularity of the wiring harness, while increasing the stability of the wiring harness and reducing the difficulty of fixing the wiring harness. The wing plate 222 located at the bottom of the web 221 can also protect the wiring harness to avoid damage to the wiring harness, thereby reducing the failure rate of a pure electric commercial vehicle equipped with the frame system of the present application.

[0067] Preferably, the web 221 is fixedly connected to the longitudinal beam 1 by riveting to increase the connection strength between the cross beam 2 and the longitudinal beam 1 and ensure the structural strength of the vehicle system.

[0068] The present application does not specifically limit the structure of the beam body 21, and the beam body 21 may adopt any one of the following embodiments:

[0069] Embodiment 1, in this embodiment, refer to Figure 3 , Figure 4 and Figure 5 The beam body 21 includes a C-shaped plate 211 and a support plate 212 fixedly connected to the C-shaped plate 211 by a bolt pair. The support plate 212 and the C-shaped plate 211 together form a receiving cavity, and the support plate 212 is located below the C-shaped plate 211, and the support plate 212 is fixedly connected to the wing plate 222 by a bolt pair.

[0070] It should be noted that the support plate 212 is fixedly connected to the wing plate 222 by a bolt pair, and the wing plate 222 refers to the wing plate 222 located at the lower side of the web 221 .

[0071] Since the support plate 212 is fixedly connected to the C-type plate 211 by a bolt pair, and the support plate 212 is fixedly connected to the wing plate 222 by a bolt pair, the support plate 212 can be disassembled by removing the bolt pair, so as to facilitate the replacement or maintenance of the auxiliary battery pack 4 located in the accommodating cavity, and ensure the structural strength of the crossbeam 2.

[0072] Preferably, the C-shaped plate 211 is fixedly connected to the wing plate 222 located on the upper side of the web 221 by riveting to ensure the connection strength between the C-shaped plate 211 and the wing plate 222 .

[0073] The present application does not specifically limit the connection method between the support plate 212 and the C-shaped plate 211, and any one of the following implementation examples may be adopted:

[0074] Implementation Example 1: In this implementation example, refer to Figure 3 and Figure 4 , edges 213 are extended outward on both sides of the opening of the C-shaped plate 211, and the support plate 212 is fixedly connected to the edges 213 by a bolt pair. That is to say, the support plate 212 is fixedly connected to the edges 213 by a bolt pair to achieve a fixed connection with the C-shaped plate 211, thereby achieving the effect of facilitating the assembly of the support plate 212 to the C-shaped plate 211, thereby improving the assembly efficiency of the beam 2.

[0075] Implementation Example 2: In this implementation example, refer to Figure 5 The two sides of the support plate 212 are bent toward the side where the C-shaped plate 211 is located to form connecting edges 214. The two connecting edges 214 are respectively located on both sides of the C-shaped plate 211 and are fixedly connected to the C-shaped plate 211 by bolt pairs.

[0076] It can be understood that the support plate 212 is C-shaped and is arranged opposite to the C-shaped plate 211, thereby reducing the volume of the beam body 21, so that a larger volume can be reserved between the longitudinal beams 1 for arranging the main battery pack 3, so as to further extend the vehicle's cruising range.

[0077] In a preferred implementation example, refer to Figure 6 and Figure 7 Elastic members 223 are provided at both ends of the support plate 212 , and the elastic members 223 act on the web 221 to apply an elastic force to the support plate 212 in a direction away from the web 221 .

[0078] Since the support plate 212 is connected to the wing plate 222 by a bolt pair, it is necessary to open corresponding holes on the support plate 212 and the wing plate 222 for the bolts to pass through. By arranging elastic members 223 at both ends of the support plate 212, the elastic members 223 can adjust the support plate 212 when the support plate 212 is installed, so that the support plate 212 is centered between the two connecting frames 22, so that the hole structure on the support plate 212 is aligned with the hole structure on the wing plate 222, so as to achieve the effect of facilitating the fixation of the support plate 212, thereby greatly improving the replacement efficiency of the secondary battery pack 4.

[0079] The present application does not specifically limit the structure of the elastic member 223. Preferably, refer to Figure 7 The elastic member 223 is a spring to ensure the adjustment effect of the support plate 212; in other implementation examples, the elastic member 223 can also be an elastic sheet or an elastic column or other elastic structures.

[0080] Further, see Figure 7 A force-bearing plate 224 is disposed between the elastic member 223 and the support plate 212 , and the force-bearing plate 224 has a blocking rib 225 located above the support plate 212 .

[0081] Specifically, when the auxiliary battery pack 4 needs to be replaced and the support plate 212 needs to be installed, one end of the support plate 212 is first inserted into one of the connecting frames 22, and then the end of the support plate 212 is made to contact the force-bearing plate 224. In order to facilitate the insertion of both ends of the support plate 212 into the two connecting frames 22, the support plate 212 needs to be tilted at this time so as to apply a thrust to the support plate 212, and the blocking rib 225 can block the tilted support plate 212 to avoid the end of the support plate 212 from separating from the force-bearing plate 224, so that the elastic member 223 can always act on the end of the support plate 212 to ensure the adjustment effect of the elastic member 223 on the support plate 212, and at the same time avoid the situation where the support plate 212 cannot be laid flat due to the end of the support plate 212 moving to the top of the force-bearing plate 224, thereby greatly improving the installation efficiency of the support plate 212.

[0082] Further, refer to Figure 7 A guide rod 226 is provided on the side of the force-bearing plate 224 away from the support plate 212. The guide rod 226 is penetrated through the web 221 and the elastic member 223. The longitudinal beam 1 is provided with a through hole for the guide rod 226 to pass through, so that the guide rod 226 can guide the force-bearing plate 224 and the elastic member 223 to increase the stability of the elastic member 223 when elastic deformation occurs, and increase the stability of the force-bearing plate 224 when moving, thereby ensuring the adjustment effect of the elastic member 223 and the force-bearing plate 224 on the support plate 212.

[0083] Further, refer to Figure 7 The web 221 is provided with a guide sleeve 227, and the guide sleeve 227 is sleeved on the outside of the guide rod 226 to increase the guiding area of ​​the guide rod 226, thereby further increasing the movement stability of the force-bearing plate 224, and further improving the adjustment effect of the support plate 212.

[0084] Preferably, the C-type plate 211 is provided with a weight-reducing hole, and the auxiliary battery pack 4 has a battery output port, a battery low-voltage interface and a battery charging port extending through the weight-reducing hole, thereby achieving a weight-reducing effect on the crossbeam 2 on the one hand, and enabling the C-type plate 211 to avoid other structures of the auxiliary battery pack 4 on the other hand. In addition, the provision of the weight-reducing hole can also improve the heat dissipation effect of the auxiliary battery pack 4.

[0085] In order to facilitate understanding of the technical solution of the present application, the replacement process of the secondary battery pack 4 will be described below:

[0086] When replacing a faulty or short-lived secondary battery pack 4, first remove the bolt pair connecting the support plate 212 and the wing plate 222, and then apply a thrust toward one end of the support plate 212, so that the support plate 212 moves along its own length under the action of the thrust. At this time, the end of the support plate 212 applies pressure to the force-bearing plate 224 located in front of its own movement direction, so that the force-bearing plate 224 pushes the elastic member 223 to move, and the elastic member 223 is deformed.

[0087] When the other end of the support plate 212 moves to the outside of the corresponding connecting frame 22, a downward pulling force is applied to the other end of the support plate 212, so that the support plate 212 is in an inclined state. At this time, the force applied to the support plate 212 is stopped, and the elastic member 223 that has undergone elastic deformation recovers its deformation and drives the force-bearing plate 224 to move. The force-bearing plate 224 pushes the support plate 212 to move, so that the support plate 212 gradually moves to the outside of the connecting frame 22, and then the auxiliary battery pack 4 can be disassembled and removed; then the new auxiliary battery pack 4 is installed in the C-type plate 211, and then the support plate 212 is installed.

[0088] When installing the support plate 212, first insert one end of the support plate 212 into one of the connecting frames 22 at an angle, so that the end of the support plate 212 contacts the blocking rib 225, and continue to apply a thrust to the support plate 212, the support plate 212 pushes the force-bearing plate 224 to move, the force-bearing plate 224 compresses the elastic member 223, so that the other end of the support plate 212 gradually moves to a position where it can avoid the end of the connecting frame 22, at this time, lay the support plate 212 flat, and then gradually cancel the thrust on the support plate 212, the elastic member 223 gradually moves to the position where the other end of the support plate 212 can avoid the end of the connecting frame 22, The deformation is gradually restored, so that the elastic member 223 pushes the force-bearing plate 224 to move, and the force-bearing plate 224 pushes the support plate 212 to move, and finally the other end of the support plate 212 is inserted into the connecting frame 22. At the same time, the elastic member 223 located at the other end of the support plate 212 applies an elastic force to the support plate 212 until the forces at both ends of the support plate 212 are balanced. The support plate 212 is force balanced, and the hole structure on the support plate 212 is opposite to the hole structure on the wing plate 222. Finally, the bolt pair can be installed to complete the replacement of the auxiliary battery pack 4.

[0089] Embodiment 2, in this embodiment, refer to Figure 2 The beam body 21 has a tubular structure in cross section.

[0090] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0091] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0092] The above is only the embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A frame system with integrated backup power battery, characterized in that: include: A longitudinal beam (1), wherein two longitudinal beams (1) are arranged opposite to each other and a mounting position is formed between the longitudinal beams (1); A crossbeam (2), wherein a plurality of the crossbeams (2) are provided, the plurality of crossbeams (2) are provided between the two longitudinal beams (1) and are used to connect the two longitudinal beams (1), and each of the crossbeams (2) has a receiving cavity inside; A main battery pack (3), the main battery pack (3) being arranged at the installation position; A secondary battery pack (4), wherein a plurality of the secondary battery packs (4) are provided and are arranged in one-to-one correspondence with the plurality of the crossbeams (2), and each of the secondary battery packs (4) is arranged in a corresponding accommodating cavity.

2. A frame system with integrated backup power battery according to claim 1, characterized in that: A vibration-damping pad (41) is provided in the accommodating cavity, and the vibration-damping pad (41) is located between the accommodating cavity and the secondary battery pack (4).

3. The frame system with integrated backup power battery according to claim 1, characterized in that: A mica sheet (42) is provided in the accommodating cavity, and the mica sheet (42) is located between the accommodating cavity and the secondary battery pack (4).

4. The frame system with integrated backup power battery according to claim 1, characterized in that: The cross beam (2) comprises a beam body (21) and a connecting frame (22) arranged at both ends of the beam body (21); the connecting frame (22) comprises a web (221) and wing plates (222) arranged at both sides of the web (221); the end of the beam body (21) is spaced from the web (221) so that a wiring space (215) is formed between the end of the beam body (21) and the web (221); and the web (221) is fixedly connected to the longitudinal beam (1).

5. A vehicle frame system with integrated backup power battery according to claim 4, characterized in that: The beam body (21) comprises a C-shaped plate (211) and a support plate (212) fixedly connected to the C-shaped plate (211) by a bolt pair, the support plate (212) and the C-shaped plate (211) together form the accommodating cavity, and the support plate (212) is located below the C-shaped plate (211), and the support plate (212) is fixedly connected to the wing plate (222) by a bolt pair.

6. A vehicle frame system with integrated backup power battery according to claim 5, characterized in that: Edges (213) are extended outwardly on both sides of the opening of the C-shaped plate (211), and the support plate (212) is fixedly connected to the edges (213) by a bolt pair; Alternatively, two sides of the support plate (212) are bent toward the side where the C-shaped plate (211) is located to provide connecting edges (214), and the two connecting edges (214) are respectively located on both sides of the C-shaped plate (211) and are fixedly connected to the C-shaped plate (211) by a pair of bolts.

7. A vehicle frame system with integrated backup power battery according to claim 5, characterized in that: Elastic members (223) are provided at both ends of the support plate (212), and the elastic members (223) act on the web (221) to apply an elastic force to the support plate (212) in a direction away from the web (221).

8. The frame system with integrated backup power battery according to claim 7, characterized in that: A force-bearing plate (224) is provided between the elastic member (223) and the support plate (212), and the force-bearing plate (224) has a blocking rib (225) located above the support plate (212).

9. A vehicle frame system with integrated backup power battery according to claim 8, characterized in that: A guide rod (226) is provided on the side of the force-bearing plate (224) facing away from the support plate (212); the guide rod (226) is passed through the web (221); and the longitudinal beam (1) is provided with a through hole for the guide rod (226) to pass through.

10. A vehicle frame system with integrated backup power battery according to claim 9, characterized in that: The web (221) is provided with a guide sleeve (227), and the guide sleeve (227) is sleeved on the outside of the guide rod (226).

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