Integrated battery frame applied to new energy commercial vehicle and new energy commercial vehicle

Abstract

The invention discloses an integrated battery frame applied to a new energy commercial vehicle and the new energy commercial vehicle, and relates to the technical field of new energy commercial vehicles. The integrated battery frame comprises a first cross beam, a second cross beam, a third cross beam, a battery compartment top plate, a battery compartment bottom plate and two frame longitudinal beams. The frame longitudinal beam comprises a front axle frame section, a front axle external expansion section, a battery frame section, a rear axle external expansion section and a rear axle frame section which are connected in sequence. And the distance between the two front axle external expansion sections is increased along with the approaching of the battery frame section. The first cross beam, the second cross beam and the battery frame sections, the front axle external expansion sections, the rear axle external expansion sections, part of the front axle frame sections and part of the rear axle frame sections of the two frame longitudinal beams can define a battery bin side wall, and the battery bin top plate, the battery bin bottom plate and the battery bin side wall can define a battery bin. Integration of the frame and the battery box of the new energy commercial vehicle is completed, the frame and the battery are jointly used for bearing, and the load of the frame is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy commercial vehicles, and in particular to an integrated battery frame for use in new energy commercial vehicles and a new energy commercial vehicle. Background Art

[0002] Generally speaking, for new energy commercial vehicles, batteries and frames are indispensable structures, and the weight of batteries and frames is usually large.

[0003] In the prior art, the battery is usually installed in the form of a standard battery pack in a battery frame, and then the entire battery frame is installed on the frame. The standard battery pack includes a battery module, a metal bottom plate, an upper cover plate and other load-bearing and sealing structural parts; the battery frame includes a load-bearing skeleton, an outer sealing plate, and installation accessories; and the frame includes longitudinal beams, cross beams and other structural parts. In addition, it is necessary to improve the strength of the frame through reinforcing beams and other structures.

[0004] Obviously, the battery standard pack, battery frame, reinforcement beam and other structures cause the whole vehicle to have a heavier load, increase the curb weight of the whole vehicle, and thus increase the energy consumption of the whole vehicle. Summary of the invention

[0005] This specification provides a new energy commercial vehicle to at least partially solve the above-mentioned problems existing in the prior art.

[0006] This manual adopts the following technical solutions:

[0007] This specification provides an integrated battery frame for new energy commercial vehicles, the integrated battery frame comprising a first crossbeam, a second crossbeam, a third crossbeam, a battery compartment top plate, a battery compartment bottom plate and two frame longitudinal beams;

[0008] The frame longitudinal beam comprises a front axle frame section, a front axle expansion section, a battery frame section, a rear axle expansion section and a rear axle frame section which are fixedly connected in sequence, and the frame longitudinal beam is integrally formed; the distance between the front axle expansion sections of the two vehicle longitudinal beams gradually increases as the front axle expansion section extends toward the direction close to the battery frame section;

[0009] The first cross beam is arranged on a side of the front axle frame section close to the battery frame section; the second cross beam is arranged on a side of the rear axle frame section close to the battery frame section; the third cross beam is fixedly connected to the battery frame sections of the two frame longitudinal beams;

[0010] The first cross beam, the second cross beam, the battery frame section of the two frame longitudinal beams, the front axle expansion section, the rear axle expansion section, part of the front axle frame section, and part of the rear axle frame section can form the side wall of the battery compartment; the battery compartment top plate and the battery compartment bottom plate are both adapted to the size of the battery compartment side wall and can be fixedly connected to the battery compartment side wall to enclose the battery compartment.

[0011] Preferably, the two frame longitudinal beams are arranged opposite to each other;

[0012] Both ends of the first cross beam, the second cross beam and the third cross beam are connected to the two frame longitudinal beams.

[0013] Preferably, the battery frame section, the front axle frame section, and the rear axle frame section are parallel to each other.

[0014] Preferably, the integrated battery frame further comprises at least one middle cross beam;

[0015] The middle cross beam is arranged on the battery frame section of the two frame longitudinal beams.

[0016] Preferably, the surface of the battery protection beam is provided with a pipeline interface and / or a liquid circuit interface and / or a gas circuit interface.

[0017] Preferably, the length of the partial front axle frame section is less than or equal to 50 cm, and the length of the partial rear axle frame section is less than or equal to 50 cm.

[0018] Preferably, the third cross beam is a hollow structure, through which cables can pass.

[0019] Preferably, the integrated battery frame applied to new energy commercial vehicles further includes a battery management system, a low-voltage battery, connecting pipes and a plurality of battery cells;

[0020] The battery management system, the low-voltage battery, and the connecting pipe are all arranged in the battery compartment in an area corresponding to the front axle expansion section, the rear axle expansion section, part of the front axle frame section, and part of the rear axle frame section;

[0021] The multiple battery cells are all arranged in the area of ​​the battery compartment corresponding to the battery frame section.

[0022] Preferably, the battery cell is a blade battery cell.

[0023] On the other hand, the present specification also provides a new energy commercial vehicle, which includes the integrated battery frame applied to the new energy commercial vehicle described in the above aspect.

[0024] At least one of the above technical solutions adopted in this specification can achieve the following beneficial effects:

[0025] According to the above embodiment, the integrated battery frame applied to new energy commercial vehicles includes a first crossbeam, a second crossbeam, a third crossbeam, a battery compartment top plate, a battery compartment bottom plate and two frame longitudinal beams. Among them, the frame longitudinal beam includes a front axle frame section, a front axle expansion section, a battery frame section, a rear axle expansion section and a rear axle frame section which are fixedly connected in sequence. And the distance between the front axle expansion sections of the two vehicle longitudinal beams gradually increases as the front axle expansion section extends toward the direction close to the battery frame section. The first crossbeam is arranged on the side of the front axle frame section close to the battery frame section; the second crossbeam is arranged on the side of the rear axle frame section close to the battery frame section; the third crossbeam is fixedly connected to the battery frame sections of the two frame longitudinal beams. The first cross beam, the second cross beam, the battery frame section of the two frame longitudinal beams, the front axle expansion section, the rear axle expansion section, part of the front axle frame section, and part of the rear axle frame section can form a battery compartment side wall, and the battery compartment top plate and the battery compartment bottom plate are both adapted to the size of the battery compartment side wall and can be fixedly connected to the battery compartment side wall to enclose the battery compartment.

[0026] From the above content, it can be seen that based on the longitudinal beams and cross beams of the frame of the new energy commercial vehicle itself, as well as the newly added battery compartment top plate and battery compartment bottom plate, the integration of the frame and battery box of the new energy commercial vehicle is completed. The frame and battery carry the load together, which greatly reduces the load on the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of this specification and constitute a part of this specification. The illustrative embodiments and descriptions of this specification are used to explain this specification and do not constitute an improper limitation on this specification. In the drawings:

[0028] Figure 1 A schematic diagram of the structure of an integrated battery frame applied to a new energy commercial vehicle provided in one embodiment of this specification;

[0029] Figure 2 A schematic diagram of the structure of an integrated battery frame applied to a new energy commercial vehicle provided in one embodiment of this specification;

[0030] Figure 3 A schematic diagram of the structure of a frame longitudinal beam provided for one embodiment of this specification;

[0031] Figure 4 A schematic diagram of a portion of the structure of an integrated battery frame applied to a new energy commercial vehicle provided in one embodiment of this specification;

[0032] Figure 5 A schematic diagram of a portion of the structure of an integrated battery frame applied to a new energy commercial vehicle provided in one embodiment of this specification;

[0033] Figure 6 A schematic diagram of a portion of the structure of an integrated battery frame for a new energy commercial vehicle provided in accordance with one embodiment of the present specification.

[0034] Description of reference numerals:

[0035] First cross beam 1; second cross beam 2; third cross beam 3; battery compartment top plate 4; battery compartment bottom plate 5; frame longitudinal beam 6; front axle frame section 61; front axle expansion section 62; battery frame section 63; rear axle expansion section 64; rear axle frame section 65; first distance 71; second distance 72; battery compartment side wall 81; battery compartment 8; battery cell 82; battery management system 83; low-voltage battery 84; connecting pipe 85. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of this specification more clear, the technical solutions of this specification will be clearly and completely described below in combination with the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] In the description of the present invention, it should be noted that the term "or" is generally used in a meaning including "and / or", unless the content clearly indicates otherwise.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The technical solutions provided by the embodiments of this specification are described in detail below in conjunction with the accompanying drawings.

[0041] Figure 1 as well as Figure 2 All of them are structural schematic diagrams of an integrated battery frame applied to a new energy commercial vehicle provided by an embodiment of this specification, such as Figure 1 as well as Figure 2As shown, the integrated battery frame applied to new energy commercial vehicles includes a first cross beam 1, a second cross beam 2, a third cross beam 3, a battery compartment top plate 4, a battery compartment bottom plate 5 and two frame longitudinal beams 6.

[0042] Preferably, the frame longitudinal beam 6 includes a front axle frame section 61 , a front axle expansion section 62 , a battery frame section 63 , a rear axle expansion section 64 and a rear axle frame section 65 which are fixedly connected in sequence.

[0043] Preferably, the frame longitudinal beam 6 is integrally formed, that is, the front axle frame section 61, the front axle expansion section 62, the battery frame section 63, the rear axle expansion section 64 and the rear axle frame section 65 are themselves a whole, and are divided into the above five parts only because of the change in the extension direction.

[0044] Figure 3 A schematic diagram of the structure of a frame longitudinal beam 6 provided in one embodiment of this specification is shown in FIG. Figure 3 As shown, the frame longitudinal beam 6 includes a front axle frame section 61 , a front axle expansion section 62 , a battery frame section 63 , a rear axle expansion section 64 and a rear axle frame section 65 which are fixedly connected in sequence.

[0045] Preferably, the distance between the front axle expansion sections 62 of the two vehicle longitudinal beams gradually increases as the front axle expansion sections 62 extend toward the direction approaching the battery frame section 63 .

[0046] Preferably, the distance between the rear-drive outward expansion sections of the two vehicle longitudinal beams gradually increases as approaching the battery frame section 63 .

[0047] like Figure 3 As shown, during the process of the two front axle expansion sections 62 extending from the two front axle frame sections 61 toward the two battery frame sections 63 , the first distance 71 closer to the front axle frame section 61 is smaller than the second distance 72 closer to the battery frame section 63 .

[0048] Preferably, the angle between the front axle expansion section 62 and the front axle frame section 61 is an obtuse angle.

[0049] Preferably, the first cross beam 1 is disposed on a side of the front axle frame section 61 close to the battery frame section 63 , and both ends of the first cross beam 1 are fixedly connected to the front axle frame sections 61 of the two frame longitudinal beams 6 .

[0050] Preferably, the second cross beam 2 is disposed on a side of the rear axle frame section 65 close to the battery frame section 63 , and both ends of the second cross beam 2 are fixedly connected to the rear axle frame sections 65 of the two frame longitudinal beams 6 .

[0051] Preferably, the third cross beam 3 is disposed on the battery frame section 63 , and two ends of the third cross beam 3 are fixedly connected to the battery frame sections 63 of the two frame longitudinal beams 6 .

[0052] Preferably, the first cross beam 1 , the second cross beam 2 , the battery frame section 63 , the front axle expansion section 62 , the rear axle expansion section 64 , part of the front axle frame section 61 , and part of the rear axle frame section 65 of the two frame longitudinal beams 6 can enclose a battery compartment side wall 81 .

[0053] Preferably, the battery compartment top plate 4 and the battery compartment bottom plate 5 are both adapted to the size of the battery compartment side wall 81 , and can be fixedly connected to the battery compartment side wall 81 to enclose the battery compartment 8 .

[0054] Figure 4 as well as Figure 5 All of them are partial structural schematic diagrams of an integrated battery frame applied to a new energy commercial vehicle provided by an embodiment of this specification. Figure 4 As shown, the first cross beam 1, the second cross beam 2, the battery frame section 63, the front axle expansion section 62, the rear axle expansion section 64, part of the front axle frame section 61, and part of the rear axle frame section 65 of the two frame longitudinal beams 6 can enclose the battery compartment side wall 81. Figure 5 As shown, the battery compartment bottom plate 5 is disposed on the lower side of the battery compartment side wall 81, and the battery compartment top plate 4 is disposed on the upper side of the battery compartment side wall 81. The battery compartment bottom plate 5, the battery compartment top plate 4 and the battery compartment side wall 81 together constitute the battery compartment 8.

[0055] According to the above embodiment, the integrated battery frame applied to the new energy commercial vehicle includes a first crossbeam 1, a second crossbeam 2, a third crossbeam 3, a battery compartment top plate 4, a battery compartment bottom plate 5 and two frame longitudinal beams 6. Among them, the frame longitudinal beam 6 includes a front axle frame section 61, a front axle expansion section 62, a battery frame section 63, a rear axle expansion section 64 and a rear axle frame section 65 which are fixedly connected in sequence. And the distance between the front axle expansion section 62 of the two vehicle longitudinal beams gradually increases as the front axle expansion section 62 extends toward the direction close to the battery frame section 63. The first crossbeam 1 is arranged on the side of the front axle frame section 61 close to the battery frame section 63; the second crossbeam 2 is arranged on the side of the rear axle frame section 65 close to the battery frame section 63; the third crossbeam 3 is fixedly connected to the battery frame section 63 of the two frame longitudinal beams 6. The first cross beam 1, the second cross beam 2, the battery frame section 63 of the two frame longitudinal beams 6, the front axle expansion section 62, the rear axle expansion section 64, part of the front axle frame section 61, and part of the rear axle frame section 65 can enclose a battery compartment side wall 81, and the battery compartment top plate 4 and the battery compartment bottom plate 5 are both adapted to the size of the battery compartment side wall 81 and can be fixedly connected to the battery compartment side wall 81 to enclose a battery compartment 8.

[0056] From the above content, it can be seen that based on the longitudinal beams and cross beams of the frame of the new energy commercial vehicle itself, as well as the newly added battery compartment top plate 4 and battery compartment bottom plate 5, the integration of the frame and the battery box of the new energy commercial vehicle is completed, and the frame and the battery bear the load together, which greatly reduces the load on the frame.

[0057] Preferably, the battery compartment 8 can directly accommodate structures such as a battery management system 83, a low-voltage battery 84, a connecting pipe 85, and multiple battery cells.

[0058] Preferably, the battery cell is a blade battery cell. Further preferably, the battery frame sections 63 of the two frame longitudinal beams 6 are arranged in parallel, and the distance between the battery frame sections 63 of the two frame longitudinal beams 6 is adapted to the length of the blade battery cell, so that when the blade battery cell is placed in the battery compartment 8 perpendicular to the battery frame section 63, the two ends of the blade battery cell can be closely attached to the two battery frame sections 63 of the two frame longitudinal beams 6, respectively.

[0059] Preferably, the battery compartment top plate 4 and the battery compartment bottom plate 5 are both made of steel.

[0060] Preferably, the strength of the battery compartment top plate 4 and the battery compartment bottom plate 5 are both greater than a preset strength, so that the battery compartment bottom plate 5 and the battery compartment top plate 4 can provide protection for the battery cells in the battery compartment 8 .

[0061] Preferably, the main bodies of the first cross beam 1, the second cross beam 2, the battery compartment top plate 4, the battery compartment bottom plate 5 and the two frame longitudinal beams 6 are all fully sealed structures to prevent foreign matter from entering the battery compartment 8 and causing damage to the battery cells.

[0062] Preferably, the battery compartment side wall 81, the battery compartment top plate 4 and the battery compartment bottom plate 5 are all fully sealed structures to prevent foreign matter from entering the battery compartment 8 and damaging the battery cells.

[0063] Preferably, the two frame longitudinal beams 6 are arranged opposite to each other.

[0064] Preferably, both ends of the first cross beam 1 , the second cross beam 2 and the third cross beam 3 are connected to the two frame longitudinal beams 6 .

[0065] Preferably, the battery frame section 63 is parallel to the front axle frame section 61 and the rear axle frame section 65 .

[0066] Preferably, the integrated battery frame further includes at least one middle cross beam, and the middle cross beam is configured in the battery frame section 63 of the two frame longitudinal beams 6. It should be emphasized that the third cross beam 3 is also configured in the battery frame section 63, that is, in addition to the third cross beam 3, the battery frame section 63 can also be configured with at least one middle cross beam to improve the structural strength of the battery compartment 8.

[0067] Preferably, the surface of the battery protection beam is configured with pipeline interfaces and / or liquid circuit interfaces and / or gas circuit interfaces.

[0068] Preferably, the length of the portion of the front axle frame segment 61 is less than or equal to 50 cm, and the length of the portion of the rear axle frame segment 65 is less than or equal to 50 cm. That is to say, the length of the portion of the front axle frame segment 61 that constitutes the battery compartment side wall 81 is less than or equal to 50 cm, and the length of the portion of the rear axle frame segment 65 that constitutes the battery compartment side wall 81 is less than or equal to 50 cm. The size of the battery compartment 8 is limited, and the space utilization rate is improved. Specifically, since the width of the area in the battery compartment 8 corresponding to the front axle frame segment 61 and the rear axle frame segment 65 is small, it is difficult to place blade batteries, and only structures such as storage batteries can be stored. Therefore, when the battery cell is a blade battery cell, the capacity of this part of the area has little effect on the battery cell capacity of the battery compartment 8.

[0069] Preferably, the third cross beam 3 is a hollow structure, through which cables can pass.

[0070] Preferably, the at least one middle cross beam is a hollow structure, through which cables can pass.

[0071] Preferably, the integrated battery frame applied to new energy commercial vehicles also includes a battery management system 83, a low-voltage battery 84, a connecting pipe 85 and a plurality of battery cells. In addition, the battery management system 83, the low-voltage battery 84 and the connecting pipe 85 are all arranged in the battery compartment 8 in an area corresponding to the front axle expansion section 62, the rear axle expansion section 64, part of the front axle frame section 61 and part of the rear axle frame section 65.

[0072] Preferably, the plurality of battery cells are all disposed in an area of ​​the battery compartment 8 corresponding to the battery frame section 63 .

[0073] Figure 6 A partial structural diagram of an integrated battery frame for a new energy commercial vehicle provided in one embodiment of this specification is shown in FIG. Figure 6 As shown, multiple battery cells are arranged in the area of ​​the battery compartment 8 corresponding to the battery frame section 63, and the battery management system 83, the low-voltage battery 84, the connecting pipe 85, etc. are arranged in the area corresponding to the front axle expansion section 62, the rear axle expansion section 64, part of the front axle frame section 61, and part of the rear axle frame section 65.

[0074] Preferably, the battery cell is a blade battery cell.

[0075] The above is an integrated battery frame applied to new energy commercial vehicles provided by one or more embodiments of this specification. Based on the same idea, this specification also provides a new energy commercial vehicle, which includes the integrated battery frame applied to new energy commercial vehicles provided by any one of the above embodiments.

[0076] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0077] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0078] The above description is only an embodiment of this specification and is not intended to limit this specification. For those skilled in the art, this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification should be included in the scope of the claims of this application.

Claims

1. An integrated battery frame for new energy commercial vehicles, characterized in that: The integrated battery frame includes a first crossbeam, a second crossbeam, a third crossbeam, a battery compartment top plate, a battery compartment bottom plate and two frame longitudinal beams; The frame longitudinal beam comprises a front axle frame section, a front axle expansion section, a battery frame section, a rear axle expansion section and a rear axle frame section which are fixedly connected in sequence, and the frame longitudinal beam is integrally formed; the distance between the front axle expansion sections of the two vehicle longitudinal beams gradually increases as the front axle expansion section extends toward the direction close to the battery frame section; The first cross beam is arranged on a side of the front axle frame section close to the battery frame section; the second cross beam is arranged on a side of the rear axle frame section close to the battery frame section; the third cross beam is fixedly connected to the battery frame sections of the two frame longitudinal beams; The first cross beam, the second cross beam, the battery frame section of the two frame longitudinal beams, the front axle expansion section, the rear axle expansion section, part of the front axle frame section, and part of the rear axle frame section can form the side wall of the battery compartment; the battery compartment top plate and the battery compartment bottom plate are both adapted to the size of the battery compartment side wall and can be fixedly connected to the battery compartment side wall to enclose the battery compartment.

2. The integrated battery frame for new energy commercial vehicles according to claim 1 is characterized in that: The two frame longitudinal beams are arranged opposite to each other; Both ends of the first cross beam, the second cross beam and the third cross beam are connected to the two frame longitudinal beams.

3. The integrated battery frame for new energy commercial vehicles according to claim 1 is characterized in that: The battery frame section is parallel to the front axle frame section and the rear axle frame section.

4. The integrated battery frame for new energy commercial vehicles according to claim 1, characterized in that: The integrated battery frame further comprises at least one mid-section cross beam; The middle cross beam is arranged on the battery frame section of the two frame longitudinal beams.

5. The integrated battery frame for new energy commercial vehicles according to claim 1, characterized in that: The surface of the battery protection beam is configured with pipeline interfaces and / or liquid circuit interfaces and / or gas circuit interfaces.

6. The integrated battery frame for new energy commercial vehicles according to any one of claims 1 to 5, characterized in that: The length of the partial front axle frame section is less than or equal to 50 cm, and the length of the partial rear axle frame section is less than or equal to 50 cm.

7. The integrated battery frame for new energy commercial vehicles according to any one of claims 1 to 5, characterized in that: The third cross beam is a hollow structure and can be passed through by cables.

8. The integrated battery frame for new energy commercial vehicles according to any one of claims 1 to 5, characterized in that: The integrated battery frame applied to new energy commercial vehicles also includes a battery management system, a low-voltage battery, connecting pipes and a plurality of battery cells; The battery management system, the low-voltage battery, and the connecting pipe are all arranged in the battery compartment in an area corresponding to the front axle expansion section, the rear axle expansion section, part of the front axle frame section, and part of the rear axle frame section; The multiple battery cells are all arranged in the area of ​​the battery compartment corresponding to the battery frame section.

9. The integrated battery frame for new energy commercial vehicles according to claim 8, characterized in that: The battery cell is a blade battery cell.

10. A new energy commercial vehicle, characterized in that: The new energy commercial vehicle includes the integrated battery frame applied to the new energy commercial vehicle as described in any one of claims 1-9.

Images