CTC battery chassis integrated arrangement scheme and vehicle

Abstract

The utility model discloses a CTC battery chassis integrated arrangement scheme and a vehicle, the CTC battery chassis integrated arrangement scheme comprises a chassis, a mounting frame, a mounting bracket and a battery pack body, and the chassis comprises two longitudinal beams; the two mounting frames are arranged on the sides, away from each other, of the two longitudinal beams in a one-to-one correspondence mode. The two installation supports are arranged on the sides, away from each other, of the two longitudinal beams in a one-to-one correspondence mode, and the installation supports and the installation frame are arranged in a staggered mode in the extending direction of the longitudinal beams. The main body part of the battery pack body is arranged between the two longitudinal beams, the two sides of the main body part are connected with the two mounting brackets respectively, and the two side parts of the battery pack body are symmetrically arranged on the two sides of the main body part and are connected with the two mounting frames in a one-to-one correspondence manner. The single battery system is high in integration level and has the advantages of being small in occupied space and tidy in arrangement, the space between the two longitudinal beams of the chassis is fully utilized for installation of the battery pack body, and the space utilization rate of the whole vehicle can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a CTC battery chassis integrated layout scheme and vehicle. Background Technology

[0002] Combination Figure 1 Traditional battery system solutions for new energy commercial vehicles typically use multiple standard battery boxes (01) and integrate them using high and low voltage wiring harnesses and BDUs (Battery Distribution Units) to meet range and power requirements. Integrating a battery system using standard battery boxes is equivalent to assembling multiple discrete component units into a single battery system through electrical and mechanical connections. This approach has certain advantages, such as: standard battery boxes are manufactured by professional battery manufacturers, the technology is mature, it has good versatility, and the development cycle is short. However, it also has many disadvantages:

[0003] ①Low vehicle space utilization: Multiple standard battery boxes need to be connected in series and parallel through wiring harnesses, pipes, etc. to form a battery system, which poses a great challenge to the space of the battery system in the vehicle, resulting in low vehicle space utilization, messy layout and lack of aesthetics.

[0004] ② Low energy density and high cost of battery system: The battery system composed of multiple standard battery boxes adds multiple battery box shells, high and low voltage connector interfaces, water inlet and outlet (424), high and low voltage connection harnesses between battery boxes, water cooling pipes and the vehicle adds mounting brackets for multiple standard battery boxes, resulting in low overall energy density, significantly increased weight and high cost of battery system;

[0005] ③ Poor reliability: Using multiple standard battery boxes in series and parallel results in too many water-cooling pipes and high and low voltage wiring harnesses. Too many electrical connections for power lines and water-cooling pipe joints increase the risk of failure. As a high-voltage and high-current power transmission carrier, the power lines are prone to overheating and burning if the connection resistance at the electrical connection joints is too high. Poor connection of water-cooling pipe joints can easily cause coolant leakage, leading to insulation problems and poor reliability.

[0006] ④ Poor temperature field consistency in battery operating environment: Multiple standard battery boxes are arranged in different positions on the vehicle, resulting in poor temperature field consistency, which leads to large temperature differences between boxes and has an adverse effect on battery system performance and lifespan.

[0007] ⑤ Unstable vehicle center of gravity: With multiple standard battery boxes located in different positions on the vehicle, it is difficult to ensure that the vehicle's center of gravity is concentrated and stable, which can easily lead to vehicle rollover accidents.

[0008] Therefore, how to improve the space utilization rate of the whole vehicle has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0009] In view of this, the purpose of this utility model is to provide an integrated layout scheme for CTC battery chassis to improve the space utilization of the whole vehicle.

[0010] Another objective of this utility model is to provide a vehicle that includes the above-mentioned integrated layout scheme of CTC battery chassis.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] An integrated layout scheme for a CTC battery chassis includes:

[0013] The chassis includes two longitudinal beams;

[0014] The mounting frame consists of two frames, which are positioned one-to-one on the opposite sides of the two longitudinal beams.

[0015] There are two mounting brackets, which are respectively set on the side of the two longitudinal beams that are far apart from each other, and the mounting brackets are staggered from the mounting frame along the extension direction of the longitudinal beams.

[0016] The battery pack body has a main body disposed between the two longitudinal beams and connected to the two mounting brackets on both sides respectively. The two sides of the battery pack body are symmetrically disposed on both sides of the main body and are connected to the two mounting frames one by one.

[0017] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the battery pack body includes a housing, and the housing includes:

[0018] The upper box cover is provided with a clearance groove for the longitudinal beam to pass through, and a part of the upper box cover is disposed between the two longitudinal beams, and the other part is disposed in the two mounting frames respectively;

[0019] The lower housing is adapted to the shape of the upper housing cover and is connected to the upper housing cover to form an installation space for placing the battery module. The lower housing is also connected to the mounting frame and the mounting bracket.

[0020] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the mounting frame is provided with multiple frame hoisting holes, and the mounting bracket is provided with multiple bracket hoisting holes;

[0021] The lower housing is provided with multiple housing lifting points. Some of the housing lifting points are connected to the frame lifting holes, and the other part is connected to the bracket lifting holes.

[0022] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the mounting frame is provided with multiple frame hoisting holes, and the mounting bracket is provided with multiple bracket hoisting holes;

[0023] The upper box cover is provided with box cover lifting points, a portion of which is connected to the frame lifting holes and the other portion is connected to the bracket lifting holes.

[0024] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the side wall of the lower housing is provided with at least one of the following: a grounding point, a communication interface, a water inlet, a water outlet, a battery pack positive output connector, and a battery pack negative output connector; and / or,

[0025] An explosion-proof breathing valve is provided on the upper cover and / or the lower body.

[0026] Optionally, in the above-described integrated layout scheme for the CTC battery chassis, the mounting frame includes:

[0027] The frame body has a side portion disposed within it, and the frame body has multiple frame lifting holes, which are bolted to the side portion.

[0028] A reinforcing plate is provided on one side of the main frame body and has a first longitudinal beam connection hole for connecting with the longitudinal beam.

[0029] Optionally, in the above-described integrated layout scheme for the CTC battery chassis, the mounting bracket includes:

[0030] The first connecting plate has a plurality of second longitudinal beam connecting holes spaced apart along the extension direction of the longitudinal beam and connected to the longitudinal beam;

[0031] The second connecting plate is connected to one side of the first connecting plate and has multiple bracket hoisting holes spaced apart along the extension direction of the longitudinal beam. The bracket hoisting holes are bolted to the main body.

[0032] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the mounting bracket further includes reinforcing ribs, which are connected to the first connecting plate and the second connecting plate.

[0033] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the two longitudinal beams are connected by multiple crossbeams, and the main body is set in a square groove formed by the two longitudinal beams and the two crossbeams.

[0034] Optionally, in the above-described integrated layout of the CTC battery chassis, the longitudinal beam is provided with a first connection point for connecting to the battery pack body; and / or,

[0035] The crossbeam is provided with a second connection point for connecting to the battery pack body.

[0036] Optionally, in the above-mentioned integrated layout scheme of CTC battery chassis, the battery pack body is provided with a first positioning pin hole, and at least one of the chassis, the mounting frame and the mounting bracket is provided with a second positioning pin hole, and the first positioning pin hole and the second positioning pin hole are positioned and connected by positioning pins.

[0037] A vehicle comprising the aforementioned integrated CTC battery chassis layout scheme.

[0038] The integrated layout scheme of the CTC battery chassis provided by this utility model includes a chassis, a mounting frame, mounting brackets, and a battery pack body. The chassis includes two longitudinal beams; there are two mounting frames, which are respectively set on the opposite side of the two longitudinal beams; there are two mounting brackets, which are respectively set on the opposite side of the two longitudinal beams, and the mounting brackets and mounting frames are staggered along the extension direction of the longitudinal beams; the main body of the battery pack body is set between the two longitudinal beams, and its two sides are respectively connected to the two mounting brackets. The two sides of the battery pack body are symmetrically set on both sides of the main body and are respectively connected to the two mounting frames.

[0039] Compared to existing technologies, the integrated layout scheme of CTC battery chassis provided by this utility model is a highly integrated single battery system with the advantages of small space occupation and neat layout, which can improve the space utilization of the whole vehicle. At the same time, by making full use of the space between the two longitudinal beams of the chassis to install the battery pack body, the space utilization of the whole vehicle can be greatly improved. In addition, the mounting frame and mounting bracket can be used as part of the chassis to provide fulcrum for mounting and fixing other components, thereby simplifying the structure and improving space utilization.

[0040] The vehicle provided by this utility model includes the above-mentioned integrated layout scheme of CTC battery chassis, so it also has the above-mentioned structure and beneficial effects. Other structures refer to the prior art and will not be described in detail here. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This refers to existing battery system solutions for new energy commercial vehicles.

[0043] Figure 2 This is a structural schematic diagram of the integrated layout scheme of the CTC battery chassis disclosed in the embodiments of this utility model;

[0044] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0045] Figure 4 This is a schematic diagram of the structure of the battery pack body disclosed in an embodiment of the present utility model;

[0046] Figure 5 This is a schematic diagram of the installation frame structure disclosed in an embodiment of the present utility model. Figure 1 ;

[0047] Figure 6 This is a schematic diagram of the installation frame structure disclosed in an embodiment of the present utility model. Figure 2 ;

[0048] Figure 7 This is a schematic diagram of the structure of the mounting bracket disclosed in the embodiment of this utility model. Figure 1 ;

[0049] Figure 8 This is a schematic diagram of the structure of the mounting bracket disclosed in the embodiment of this utility model. Figure 2 ;

[0050] Figure 9 This is an assembly diagram of the integrated layout scheme of the CTC battery chassis disclosed in this utility model embodiment. Figure 1 ;

[0051] Figure 10 This is an assembly diagram of the integrated layout scheme of the CTC battery chassis disclosed in this utility model embodiment. Figure 2 ;

[0052] Figure 11 This is an assembly diagram of the integrated layout scheme of the CTC battery chassis disclosed in this utility model embodiment. Figure 3 ;

[0053] Figure 12 This is an assembly diagram of the integrated layout scheme of the CTC battery chassis disclosed in this utility model embodiment. Figure 4 .

[0054] Among them, 01 is the standard battery box;

[0055] 100 is the longitudinal beam, 101 is the longitudinal beam mounting hole, 110 is the transverse beam, and 111 is the transverse beam mounting hole;

[0056] 200 is the mounting frame, 210 is the frame body, 211 is the support beam, 212 is the diagonal bracing beam, 213 is the frame mounting hole, 214 is the frame hoisting hole, 220 is the reinforcing plate, 221 is the wire harness through hole, and 222 is the first longitudinal beam connection hole.

[0057] 300 is the mounting bracket, 301 is the bracket hoisting hole, 302 is the second longitudinal beam connection hole, 303 is the reinforcing rib, and 304 is the bracket mounting hole;

[0058] 400 is the battery pack body, 401 is the main body, 402 is the side, 403 is the clearance groove, 410 is the upper cover, 411 is the cover lifting point, 420 is the lower enclosure, 421 is the grounding point, 422 is the battery pack main positive output connector, 423 is the communication interface, 424 is the water outlet, 425 is the water inlet, 426 is the battery pack main negative output connector, 427 is the MSD, 428 is the enclosure lifting point, 429 is the explosion-proof breather valve, 430 is the internal frame, 431 is the frame lifting point, 440 is the liquid cooling plate, 450 is the upper module, 460 is the lower module, 470 is the busbar, and 480 is the integrated busbar.

[0059] 500 is the connecting bolt, and 510 is the locating pin. Detailed Implementation

[0060] The core of this utility model lies in disclosing a CTC (Cell to Chassis) integrated battery and chassis layout scheme to improve the space utilization of the whole vehicle.

[0061] Another core aspect of this utility model is the disclosure of a vehicle that includes the aforementioned integrated layout scheme of CTC battery chassis.

[0062] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0063] Combination Figures 1-12The CTC battery chassis integrated layout scheme disclosed in this utility model includes a chassis, a mounting frame 200, a mounting bracket 300, and a battery pack body 400. The chassis includes two longitudinal beams 100. There are two mounting frames 200, which are respectively arranged on the opposite side of the two longitudinal beams 100. There are two mounting brackets 300, which are respectively arranged on the opposite side of the two longitudinal beams 100, and the mounting brackets 300 and the mounting frames 200 are staggered along the extension direction of the longitudinal beams 100. The main body 401 of the battery pack body 400 is arranged between the two longitudinal beams 100, and its two sides are respectively connected to the two mounting brackets 300. The two side parts 402 of the battery pack body 400 are symmetrically arranged on both sides of the main body 401 and are respectively connected to the two mounting frames 200.

[0064] Compared to existing technologies, the CTC battery chassis integrated layout scheme disclosed in this utility model is a highly integrated single battery system with the advantages of small space occupation and neat arrangement, which can improve the space utilization of the whole vehicle. At the same time, by making full use of the space between the two longitudinal beams 100 of the chassis for the installation of the battery pack body 400, the space utilization of the whole vehicle can be greatly improved. In addition, the mounting frame 200 and the mounting bracket 300 can both be used as part of the chassis to provide fulcrum for the mounting and fixing of other components, thereby simplifying the structure and improving the space utilization.

[0065] For example, the battery pack body 400 disclosed in this utility model can be presented as... Figure 1 and Figure 2 The T-shape or cross-shape shown is used as an example below. The dimensions of the main body 401 of the battery pack body 400 can be designed according to the size space enclosed by the two longitudinal beams 100 of the chassis and the stability of the vehicle's center of gravity.

[0066] In a specific embodiment disclosed in this utility model, combined with Figure 11 The battery pack body 400 includes a housing, which comprises an upper cover 410 and a lower housing 420. The upper cover 410 has a clearance groove 403 for the longitudinal beams 100 to pass through. A portion of the upper cover 410 is positioned between two longitudinal beams 100, and the other portion is positioned within two mounting frames 200, allowing the battery pack body 400 to be partially embedded in the chassis, thus improving space utilization. The lower housing 420 is shaped to match the upper cover 410 and connects with it to form an installation space for placing battery modules. The lower housing 420 is connected to the mounting frames 200 and mounting brackets 300 to ensure reliable fixation of the battery pack body 400. The gravity of the battery modules within the installation space is transferred through the lower housing 420 to the mounting brackets 300 and mounting frames 200, and then to the longitudinal beams 100, resulting in a simple and reliable structure.

[0067] In addition, the battery pack body 400 also includes components such as an internal frame 430, a liquid cooling plate 440, a busbar 470, and an integrated busbar 480. The specific structure and operating principle of each of the aforementioned components are existing technologies, and their positions can be adaptively adjusted according to the shape of the installation space, and will not be described in detail here. For example, combined with Figure 4 In some embodiments, the battery module includes an upper module 450 and a lower module 460. Both the upper module 450 and the lower module 460 are disposed within the installation space. The position of the upper module 450 corresponds to the upper cover 410 and is adapted to the shape of the upper cover 410. The position of the lower module 460 corresponds to the position of the lower housing 420 and is adapted to the shape of the lower housing 420.

[0068] To reliably secure the battery pack body 400, multiple frame lifting holes 214 are provided on the mounting frame 200, and multiple bracket lifting holes 301 are provided on the mounting bracket 300. Multiple housing lifting points 428 are provided on the lower housing 420, with a portion of the lifting points 428 connected to the frame lifting holes 214 and another portion connected to the bracket lifting holes 301. Specifically, the housing lifting points 428 can be detachably connected to the frame lifting holes 214 and the bracket lifting holes 301 using connecting bolts 500. In other embodiments, the mounting frame 200 has multiple frame lifting holes 214, and the mounting bracket 300 has multiple bracket lifting holes 301; the upper housing cover 410 has housing cover lifting points 411, with a portion of the housing cover lifting points 411 bolted to the frame lifting holes 214 and another portion bolted to the bracket lifting holes 301. The cover lifting point 411 and the body lifting point 428 can be set together to ensure reliable installation of the battery pack body 400 on the chassis.

[0069] Furthermore, a frame lifting point 431 is provided on the frame 430 inside the box. The frame lifting point 431 can be connected to the mounting frame 200 and / or mounting bracket 300 to further improve the reliability of the battery pack body 400 installation.

[0070] In some embodiments, combined with Figure 4The lower housing 420 has at least one of the following on its side wall: a grounding point 421, a communication interface 423, a water inlet 425, a water outlet 424, an MSD (Manual Service Disconnect) 427, a battery pack positive output connector 422, and a battery pack negative output connector 426. The grounding point 421 is used to connect the battery system's grounding wire, ensuring good grounding performance of the entire battery system and thus guaranteeing electrical safety. The communication interface 423 is used for data communication with the battery management system or other control systems, enabling functions such as monitoring battery status, fault diagnosis, and data recording. The water inlet 425 and water outlet 424 are used to connect to the battery system's coolant circulation, using the coolant to control temperature and ensure the battery modules operate within their optimal operating temperature range. The MSD 427 is used to quickly disconnect high-voltage circuits under high-voltage conditions, ensuring the safety of maintenance personnel. The battery pack positive output connector 422 and battery pack negative output connector 426 are used to output the battery pack's electrical energy to external circuits to provide power to the vehicle's drive system. When all the aforementioned interfaces or connectors are located on the same side wall of the lower housing 420, management is convenient and the reliability of the electrical connection of the battery pack body 400 is improved.

[0071] In addition, an explosion-proof breathing valve 429 is provided on the upper cover 410 and / or the lower body 420. The explosion-proof breathing valve 429 is used to balance the pressure when the pressure difference between the inside and outside of the enclosure is large, to prevent explosion and improve safety.

[0072] In one specific embodiment, combined with Figure 5 and Figure 6 The mounting frame 200 includes a frame body 210 and a reinforcing plate 220. A side part 402 is disposed within the frame body 210. The frame body 210 has multiple frame lifting holes 214, which are bolted to the side part 402. The reinforcing plate 220 is disposed on one side of the frame body 210 and has a first longitudinal beam connection hole 222 for bolting to the longitudinal beam 100. The reinforcing plate 220 effectively enhances the structural strength of the mounting frame 200 and increases the connection area between the mounting frame 200 and the longitudinal beam 100, thereby ensuring the reliability of the connection.

[0073] Specifically, the frame body 210 can be made of high-strength rectangular steel tubing. The frame body 210 can be constructed by welding together main frame beams, support beams 211, and diagonal bracing beams 212. The frame reinforcing plate 220 can be welded to the frame body 210. Frame mounting holes 213 are also provided on the mounting frame 200, serving as mounting points for other components. The reinforcing plate 220 also has wire harness through holes 221 for wire harnesses, conduits, clips, etc., to pass through. The number and position of these holes can be adjusted according to actual needs, and will not be elaborated further here.

[0074] In a specific embodiment of this utility model, the mounting bracket 300 includes a first connecting plate and a second connecting plate. The first connecting plate has a plurality of second longitudinal beam connecting holes 302 spaced apart along the extension direction of the longitudinal beam 100 for bolting to the longitudinal beam 100. The second connecting plate is connected to one side of the first connecting plate and has a plurality of bracket lifting holes 301 spaced apart along the extension direction of the longitudinal beam 100. The bracket lifting holes 301 are bolted to the main body 401. Specifically, the mounting bracket 300 can be made of high-strength L-shaped steel, and bracket mounting holes 304 can also be provided on the mounting bracket 300 as mounting points for other components.

[0075] Correspondingly, the longitudinal beam 100 has multiple longitudinal beam mounting holes 101. A portion of these mounting holes 101 are bolted to the mounting frame 200, and another portion is bolted to the mounting bracket 300. This design is simple, easy to assemble and disassemble, and convenient for maintenance. The longitudinal beam 100 can also be fixed to the mounting bracket 300 and the mounting frame 200 by welding or other methods. Furthermore, the first connecting plate and the second connecting plate are typically arranged perpendicularly. To ensure structural strength, combined with… Figure 7 and Figure 8 The mounting bracket 300 also includes a reinforcing rib 303, which is connected to the first connecting plate and the second connecting plate.

[0076] In some embodiments, combined with Figure 12 Two longitudinal beams 100 are connected by multiple transverse beams 110, and the main body 401 is disposed within a square groove formed by the two longitudinal beams 100 and the two transverse beams 110. Further, the longitudinal beams 100 are provided with a first connection point for connection with the battery pack body 400; and / or, the transverse beams 110 are provided with a second connection point for connection with the battery pack body 400. The second connection point can be a transverse beam mounting hole 111. Specifically, the longitudinal beams 100 can be made of double-layer high-strength channel steel; the transverse beams 110, as reinforcing anti-torsional beams of the longitudinal beams 100, can be made of high-strength channel steel and riveted integrally with the longitudinal beams 100.

[0077] The design is further optimized by providing a first positioning pin hole on the battery pack body 400 and a second positioning pin hole on at least one of the chassis, mounting frame 200 and mounting bracket 300. The first positioning pin hole and the second positioning pin hole can be connected by positioning pins 510 for easy assembly.

[0078] In a specific assembly process, combined Figure 9 and Figure 10 First, the two mounting frames 200 are fixed to the longitudinal beam 100 as a whole using bolts. Then, the two mounting brackets 300 are connected to the longitudinal beam 100 as a whole using bolts. Figure 11 Adjust the battery pack body 400 to align with the mounting frame 200 and mounting bracket 300, and lift it upwards using the universal wheel lifting platform until the main body 401 of the battery pack body 400 is installed between the square frame grooves enclosed by the two longitudinal beams 100 and the two transverse beams 110, and the two side parts 402 are respectively installed into the two mounting frames 200; after auxiliary installation and positioning using positioning pins 510, bolt the various box cover lifting points 411 and / or box body lifting points 428 and / or frame lifting points 431 on the box to the frame lifting holes 214, bracket lifting holes 301, and the first connection point and / or the second connection point to complete the assembly.

[0079] This utility model discloses an integrated CTC battery chassis layout scheme. Based on the space envelope of the chassis longitudinal beams, and addressing the needs of new energy commercial vehicles, it transforms the traditional battery system composed of multiple standard battery boxes into a highly integrated single battery pack system. This integrated scheme effectively solves the prominent problems currently faced by standard battery box systems in new energy commercial vehicles, such as large space occupation, cluttered layout, low overall vehicle space utilization, poor reliability of electrical and piping connections, high cost, heavy weight, and low overall energy density of the battery system. Specifically:

[0080] (1) High space utilization of the whole vehicle: Compared with the traditional battery system solution that uses multiple standard battery boxes, this utility model is equivalent to integrating many separate components into one unit according to the reasonable use of the vehicle chassis space, thereby greatly improving the space utilization.

[0081] (2) High energy density and low cost of battery system: Compared with the traditional battery system solution composed of multiple standard battery boxes, the integrated battery system solution of this utility model saves multiple battery box shells, high and low voltage connector interfaces, water inlet and outlet, high and low voltage connection harnesses between battery boxes, water cooling pipes and the mounting brackets added to the vehicle for multiple standard battery boxes, thereby saving space and making the overall energy density of the battery system higher, the weight significantly reduced and the cost reduced.

[0082] (3) High reliability: Compared with the traditional battery system solution composed of multiple standard battery boxes, the integrated battery system solution of this utility model eliminates many water cooling pipe joints and high and low voltage wire harness electrical connection joints, thereby reducing the risk of connection failure and leakage, and has high reliability.

[0083] (4) Good consistency of battery working environment temperature field: Compared with the traditional battery system solution composed of multiple standard battery boxes, the integrated battery system solution of this utility model has only one battery pack. The battery modules are in a basically consistent environment inside the pack, the temperature difference between battery modules is small, and the performance and life of the battery system will be improved.

[0084] (5) Stable vehicle center of gravity: Compared with the traditional battery system solution that uses multiple standard battery boxes, the integrated battery system solution of this utility model has only one battery pack, and the battery pack can be customized and designed according to the chassis envelope space and center of gravity, thereby making the vehicle center of gravity stable and reliable.

[0085] The vehicle disclosed in this utility model includes the aforementioned integrated CTC battery chassis layout scheme, and therefore also possesses the aforementioned structure and beneficial effects. Other structures refer to existing technologies and will not be described in detail here. Specifically, the types of this vehicle include, but are not limited to, commercial trucks.

[0086] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment without being explicitly excluded by another embodiment. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated layout scheme for a CTC battery chassis, characterized in that, include: Chassis, including two longitudinal beams (100); The mounting frames (200) are two in number and are set one-to-one on the opposite side of the two longitudinal beams (100); There are two mounting brackets (300), which are respectively set on the side of the two longitudinal beams (100) that are far apart from each other, and the mounting brackets (300) are staggered from the mounting frame (200) along the extension direction of the longitudinal beams (100); The battery pack body (400) has a main body (401) disposed between two longitudinal beams (100) and connected to two mounting brackets (300) on both sides respectively. The two side parts (402) of the battery pack body (400) are symmetrically disposed on both sides of the main body (401) and are connected to the two mounting frames (200) one by one.

2. The integrated layout scheme of CTC battery chassis as described in claim 1, characterized in that, The battery pack body (400) includes a housing, the housing comprising: The upper box cover (410) is provided with a clearance groove (403) for the longitudinal beam (100) to pass through, and a part of the upper box cover (410) is disposed between the two longitudinal beams (100), and the other part is disposed in the two mounting frames (200); The lower housing (420) is adapted to the shape of the upper housing cover (410) and is connected to the upper housing cover (410) to form an installation space for placing the battery module. The lower housing (420) is connected to the mounting frame (200) and the mounting bracket (300).

3. The integrated layout scheme of CTC battery chassis as described in claim 2, characterized in that, The mounting frame (200) is provided with a plurality of frame lifting holes (214), and the mounting bracket (300) is provided with a plurality of bracket lifting holes (301). The lower housing (420) is provided with a plurality of housing lifting points (428), a portion of which is connected to the frame lifting hole (214) and the other portion is connected to the bracket lifting hole (301).

4. The integrated layout scheme of CTC battery chassis as described in claim 2, characterized in that, The mounting frame (200) is provided with a plurality of frame lifting holes (214), and the mounting bracket (300) is provided with a plurality of bracket lifting holes (301). The upper cover (410) is provided with cover lifting points (411), a part of which is connected to the frame lifting hole (214) and the other part is connected to the bracket lifting hole (301).

5. The integrated layout scheme of CTC battery chassis as described in claim 2, characterized in that, The side wall of the lower housing (420) is provided with at least one of the following: a grounding point (421), a communication interface (423), a water inlet (425), a water outlet (424), a battery pack positive output connector (422), and a battery pack negative output connector (426); and / or, An explosion-proof breathing valve (429) is provided on the upper cover (410) and / or the lower body (420).

6. The integrated layout scheme of CTC battery chassis as described in claim 1, characterized in that, The mounting frame (200) includes: The frame body (210) has a side part (402) inside it. The frame body (210) has multiple frame hoisting holes (214) and the frame hoisting holes (214) are bolted to the side part (402). A reinforcing plate (220) is provided on one side of the frame body (210) and has a first longitudinal beam connection hole (222) for connecting with the longitudinal beam (100).

7. The integrated layout scheme of CTC battery chassis as described in claim 1, characterized in that, The mounting bracket (300) includes: The first connecting plate has a plurality of second longitudinal beam connecting holes (302) spaced apart along the extension direction of the longitudinal beam (100) to connect with the longitudinal beam (100). The second connecting plate is connected to one side of the first connecting plate and has a plurality of bracket hoisting holes (301) spaced apart along the extension direction of the longitudinal beam (100). The bracket hoisting holes (301) are bolted to the main body (401).

8. The integrated layout scheme of CTC battery chassis as described in claim 7, characterized in that, The mounting bracket (300) further includes a reinforcing rib (303), which is connected to the first connecting plate and the second connecting plate.

9. The integrated layout scheme of CTC battery chassis as described in claim 1, characterized in that, The two longitudinal beams (100) are connected by a plurality of cross beams (110), and the main body (401) is disposed in a square groove formed by the two longitudinal beams (100) and the two cross beams (110).

10. The integrated layout scheme of CTC battery chassis as described in claim 9, characterized in that, The longitudinal beam (100) is provided with a first connection point for connecting to the battery pack body (400); and / or, The crossbeam (110) is provided with a second connection point for connecting to the battery pack body (400).

11. The integrated layout scheme of CTC battery chassis as described in claim 1, characterized in that, The battery pack body (400) is provided with a first positioning pin hole, and at least one of the chassis, the mounting frame (200) and the mounting bracket (300) is provided with a second positioning pin hole. The first positioning pin hole and the second positioning pin hole are positioned and connected by a positioning pin (510).

12. A vehicle, characterized in that, This includes the integrated layout scheme of CTC battery chassis as described in any one of claims 1-11.

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