Vehicle

Abstract

The utility model provides a vehicle which comprises a vehicle body floor and a battery pack. The vehicle body floor comprises a top plate and side plates, the side plates surround the peripheral side of the top plate, and a central channel is formed between the top plate and the side plates; the battery pack is arranged in the central channel and comprises a bottom shell and a battery assembly, the battery assembly is arranged on the bottom shell, and the side plates are fixedly connected with the bottom shell so that the battery pack can be fixed in the central channel. According to the vehicle, the top plate of the central channel serves as the upper cover of the battery pack, the number of parts needed by the battery pack can be reduced, the size of the battery pack is reduced, the weight of the battery pack is reduced, the space occupied by the battery pack in the whole vehicle is reduced, and the lightweight design of the vehicle is achieved. Meanwhile, the space utilization rate of the central channel and the utilization rate of the vehicle body structure are improved, and optimization and improvement of the vehicle body structure are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle design, in particular to a vehicle. Background Art

[0002] As the core component of new energy electric vehicles, the power battery pack plays a vital role in the driving ability and endurance of electric vehicles. The power battery pack is equipped with battery cells, control components, thermal management components, etc. The charging and discharging of the power battery pack depends on the battery cells inside it, and the realization of the battery cell charging and discharging functions depends on the control of the control components. The thermal management components can cool and dissipate the battery cells during the charging and discharging process to prevent the battery pack from catching fire or exploding due to excessive battery cell temperature.

[0003] In order to meet the endurance requirements of electric vehicles, a large number of battery cells are installed in the battery pack, and correspondingly, a large number of thermal management components are also installed, resulting in a larger battery pack size and heavier weight, which occupies a larger space in the vehicle and is not conducive to the lightweight design of the vehicle. Utility Model Content

[0004] In view of this, the present invention aims to provide a vehicle to at least solve the problem that the current power battery pack is heavy and is not conducive to the lightweight design of the vehicle.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A vehicle comprising a vehicle body floor and a battery pack;

[0007] The vehicle body floor comprises a top plate and side plates, wherein the side plates are arranged around the periphery of the top plate, and a central channel is formed between the top plate and the side plates;

[0008] The battery pack is arranged in the central channel. The battery pack includes a bottom shell and a battery assembly. The battery assembly is placed on the bottom shell. The side plate is fixedly connected to the bottom shell to fix the battery pack in the central channel.

[0009] Furthermore, the vehicle also includes a seal; the seal is arranged between the side panel and the bottom shell, and is used to seal the gap between the side panel and the bottom shell.

[0010] Furthermore, the side panel and the bottom shell are detachably connected via fasteners.

[0011] Furthermore, the battery pack also includes a main control component, which is arranged outside the bottom shell and connected to the side plate.

[0012] Furthermore, the battery pack also includes a high-voltage connection assembly, which is arranged outside the bottom shell and connected to the side plate.

[0013] Furthermore, the battery pack also includes a high-voltage distributor, and the main control component and the high-voltage connection component are integrated in the high-voltage distributor.

[0014] Furthermore, a wiring port is provided at the end of the bottom shell, one end of the wiring port is electrically connected to the battery assembly, and the other end of the wiring port is electrically connected to the main control assembly and the high-voltage connection assembly.

[0015] Furthermore, the side panel is provided with an opening, and the wiring port passes through the opening and is exposed outside the side panel.

[0016] Furthermore, the side panels include a front side panel and a rear side panel that are relatively arranged along the length direction of the vehicle body, and a left side panel and a right side panel that are relatively arranged along the width direction of the vehicle body; the main control component and the high-voltage connection component are both connected to the rear side panel.

[0017] Furthermore, the battery pack also includes a liquid cooling tank, which is arranged on the bottom shell and stores liquid cooling medium; the battery assembly is arranged in the liquid cooling tank and immersed in the liquid cooling medium.

[0018] Compared with the prior art, the vehicle described in the utility model has the following advantages:

[0019] The vehicle of the utility model includes a vehicle body floor and a battery pack; the vehicle body floor includes a top plate and side plates, the side plates are arranged around the top plate, and a central channel is formed between the top plate and the side plates; the battery pack is arranged in the central channel, the battery pack includes a bottom shell and a battery assembly, the battery assembly is placed on the bottom shell, and the side plates are fixedly connected to the bottom shell to fix the battery pack in the central channel. The vehicle of the utility model uses the top plate of the central channel as the upper cover of the battery pack, which can reduce the number of parts required for the battery pack, thereby helping to reduce the volume of the battery pack, reduce the weight of the battery pack, reduce the space occupied by the battery pack in the entire vehicle, and realize the lightweight design of the vehicle. At the same time, it also helps to improve the space utilization rate of the central channel and the utilization rate of the vehicle body structure, and realize the optimization and improvement of the vehicle body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 A side view of a vehicle body floor and a battery pack in a vehicle according to an embodiment of the utility model;

[0022] Figure 2 A cross-sectional view of a vehicle body floor and a battery pack in a vehicle according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the vehicle body floor and battery pack in the vehicle according to an embodiment of the present utility model.

[0024] Description of reference numerals:

[0025] 1-top plate, 2-side plate, 3-central channel, 4-bottom shell, 5-battery assembly, 6-seal, 7-fastener, 8-high voltage distributor, 9-wiring port. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. The described embodiments are part of the embodiments of the present invention, not all of them. 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.

[0027] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] It should be understood that the reference to "one embodiment" throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the utility model. Therefore, the "in one embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] Reference Figure 1 and Figure 2An embodiment of the utility model provides a vehicle, including a vehicle body floor and a battery pack; the vehicle body floor includes a top plate 1 and side plates 2, the side plates 2 are arranged around the circumference of the top plate 1, and a central channel 3 is formed between the top plate 1 and the side plates 2; the battery pack is arranged in the central channel 3, the battery pack includes a bottom shell 4 and a battery assembly 5, the battery assembly 5 is placed on the bottom shell 4, and the side plates 2 are fixedly connected to the bottom shell 4 to fix the battery pack in the central channel 3.

[0031] In this embodiment, the vehicle is an electric vehicle, including but not limited to pure electric vehicles and hybrid vehicles. The vehicle includes a body, which forms the main frame of the vehicle and can support and carry the various functional components of the vehicle. The body includes a body floor, which includes a top plate 1 and a side plate 2. The side plate 2 is arranged along the height direction of the vehicle and is arranged around the circumference of the top plate 1. The top plate 1 and the side plate 2 are fixedly connected. The top plate 1 and the side plate 2 can be two independent components, which are fixedly connected by fastener assembly connection or welding. The top plate 1 and the side plate 2 can also be processed into an integral part by an integrated molding process to simplify the connection process and control the processing cost. The central channel 3 of the vehicle is formed between the top plate 1 and the side plate 2. The central channel 3 is located between the seats of the main driver's seat and the co-driver's seat of the vehicle, and extends from the front seat area to the rear seat area. The central channel 3 forms a boundary on the body floor. When the vehicle is hit by an external force, the central channel 3 can disperse the impact force generated by the impact and improve the safety of the vehicle.

[0032] The battery pack is arranged in the central channel 3. The battery pack includes a bottom shell 4 and a battery assembly 5. The battery assembly 5 is composed of a plurality of cells connected in series or in parallel. The battery assembly 5 is placed on the bottom shell 4. The side panels 2 are fixedly connected to the bottom shell 4 so as to fix the battery pack in the central channel 3. After the side panels 2 are fixedly connected to the bottom shell 4, a closed space is formed between the top plate 1 of the central channel 3, the side panels 2 and the bottom shell 4 of the battery pack, which protects the battery assembly 5 on the bottom shell 4 and prevents external water vapor, fog, dust, etc. from entering the central channel 3 and causing short circuit or corrosion of the battery assembly 5. In this connection mode, the top plate 1 of the central channel 3 directly serves as the upper cover of the battery pack, thereby eliminating the design of the upper cover in the traditional battery pack and reducing the number of parts required for the battery pack. Further, it helps to reduce the volume and weight of the battery pack, reduce the space occupied by the battery pack in the whole vehicle, and realize the lightweight design of the vehicle. At the same time, the battery pack is arranged in the central channel 3, and the top plate 1 of the central channel 3 serves as the upper cover of the battery pack, which also helps to improve the space utilization of the central channel 3 and the utilization of the vehicle body structure, thereby achieving optimization and improvement of the vehicle body structure.

[0033] Further, see Figure 1The vehicle further includes a seal 6 ; the seal 6 is disposed between the side panel 2 and the bottom shell 4 , and is used to seal the gap between the side panel 2 and the bottom shell 4 .

[0034] In this embodiment, the structural types of the seal 6 include but are not limited to sealants, sealing strips, sealing rings, sealing gaskets, etc., and the processing materials of the seal 6 include but are not limited to silicone, rubber, foam, etc. The seal 6 is arranged between the side panel 2 and the bottom shell 4, and can seal the gap between the side panel 2 and the bottom shell 4, thereby ensuring the airtightness of the central channel 3 and further ensuring the safe use of the battery assembly 5.

[0035] Furthermore, the side panel 2 and the bottom shell 4 are detachably connected via fasteners.

[0036] In this embodiment, the bottom shell 4 is provided with a connection hole for the fastener to pass through, and the corresponding position of the side plate 2 is also provided with a connection hole, such as Figure 1 As shown, the fastener 7 is inserted into the connection hole on the bottom shell 4, and then inserted into the connection hole on the side plate 2 to achieve the fixed connection between the side plate 2 and the bottom shell 4. In this embodiment, the side plate 2 and the bottom shell 4 are detachably connected by the fastener 7, so as to facilitate the subsequent disassembly and maintenance of the bottom shell 4.

[0037] Furthermore, the battery pack also includes a main control component, which is disposed outside the bottom shell 4 and connected to the side plate 2 .

[0038] In this embodiment, the main control component mainly includes a main control board of a battery management system (BMS). The battery management system is used to monitor and control the charge and discharge state of the battery assembly 5 in the battery pack to ensure the normal operation and safe use of the battery assembly 5. The battery management system includes a main control board and a slave control board. Since there are many connecting wire harnesses between the slave control board and the battery assembly 5, the slave control board is arranged inside and outside the bottom shell 4, and the main control board is arranged outside the bottom shell 4, wherein the outside of the bottom shell 4 refers to the outside of the enclosed space formed by the bottom shell 4 and the central channel 3, and conversely, the inside of the bottom shell 4 refers to the inside of the enclosed space formed by the bottom shell 4 and the central channel 3. The main control component is arranged outside the bottom shell 4 and fixedly connected to the side panel 2 to realize the installation and fixation of the main control component. The main control component can be detachably connected and fixed with the side panel 2 by fasteners, or can be fixed by clamping and fixing with structures such as card slots and card hooks. The specific fixing method is not limited in this embodiment. In this embodiment, the main control component is arranged outside the bottom shell 4, which makes it easier for operators to monitor, debug and repair the main control component, thereby ensuring the normal operation and safe use of the battery pack.

[0039] Furthermore, the battery pack also includes a high-voltage connection assembly, which is disposed outside the bottom shell 4 and connected to the side plate 2 .

[0040] In this embodiment, the high-voltage connection assembly includes but is not limited to relays, fuses, Hall sensors, plug terminals, etc. The high-voltage connection assembly is arranged outside the bottom shell 4 and connected to the side panel 2, so that the operator can monitor, debug and repair the high-voltage connection assembly, thereby ensuring the normal operation and safety of the battery pack. The high-voltage connection assembly and the main control assembly are connected to the same side panel 2, or to different side panels 2. It can be specifically arranged according to the structure of the battery pack and the available space on the side panel 2, and this embodiment does not limit this.

[0041] Further, see Figure 1 and Figure 3 The battery pack also includes a high-voltage distributor 8, and the main control component and the high-voltage connection component are integrated in the high-voltage distributor 8.

[0042] In this embodiment, the high-voltage power distribution unit 8 (PDU) electrically connects the high-voltage connection components through the busbar and the wiring harness, and provides the vehicle's high-voltage system with multiple functions such as charging and discharging control, high-voltage component power-on control, circuit overload and short-circuit protection, high-voltage sampling, and low-voltage control, thereby protecting and monitoring the operation of the high-voltage system. In this embodiment, the main control components and the high-voltage connection components are integrated into the high-voltage distribution unit 8 to achieve a highly integrated design of the battery pack control system, which helps to further reduce the volume of the battery pack and reduce the space occupied by the battery pack in the entire vehicle.

[0043] Further, see Figure 1 and Figure 3 A wiring port 9 is provided at the end of the bottom shell 4, one end of the wiring port 9 is electrically connected to the battery assembly 5, and the other end is electrically connected to the main control assembly and the high-voltage connection assembly.

[0044] In this embodiment, the wiring port 9 is provided at one end of the bottom shell 4. The side of the wiring port 9 located inside the bottom shell 4 is electrically connected to the battery assembly 5, and the side located outside the bottom shell 4 is electrically connected to the main control assembly and the high-voltage connection assembly. The electrical connection between the main control assembly and the high-voltage connection assembly outside the bottom shell 4 and the battery assembly 5 inside the bottom shell 4 is achieved through the wiring port 9, so as to ensure the neatness of the wiring harness connection in the battery pack, which is more conducive to the installation and fixation of the battery pack on the whole vehicle.

[0045] Further, see Figure 3 The side plate 2 is provided with an opening, and the wiring port 9 passes through the opening and is exposed outside the side plate 2.

[0046] In this embodiment, the side panel 2 is provided with an opening, and the opening can be a circular opening, a rectangular opening, a square opening or an opening of any other shape, and can be specifically set according to the structural shape of the wiring port 9, which is not limited in this embodiment. The wiring port 9 passes through the opening and is exposed outside the side panel 2 to facilitate the electrical connection between the main control component and the high-voltage connection component outside the bottom shell 4 and the wiring port 9. It should be noted that in the process of installing the battery pack, the electrical connection relationship between the wiring port 9 and the battery assembly 5 is first established, and then the wiring port 9 is passed through the opening on the side panel 2 to establish the electrical connection relationship between the main control component and the high-voltage connection component and the wiring port 9.

[0047] Furthermore, the side panel 2 includes a front side panel 2 and a rear side panel which are arranged opposite to each other along the length direction of the vehicle body, and the main control component and the high-voltage connection component are both connected to the rear side panel.

[0048] In this embodiment, the side panel 2 includes a front side panel 2 and a rear side panel that are relatively arranged along the length direction of the vehicle body, and a left side panel 2 and a right side panel 2 that are relatively arranged along the width direction of the vehicle body. The main control component and the high-voltage connection component are both connected to the rear side panel, wherein the rear side panel is the side panel 2 close to the rear seats of the vehicle, and this position is more convenient for disassembly, assembly and maintenance of the main control component and the high-voltage connection component.

[0049] Furthermore, the battery pack also includes a liquid cooling tank, which is arranged on the bottom shell 4 and stores a liquid cooling medium; the battery assembly 5 is arranged in the liquid cooling tank and immersed in the liquid cooling medium.

[0050] In this embodiment, the battery pack uses immersion liquid cooling technology to dissipate heat for the battery assembly 5. The battery pack includes a liquid cooling tank, a circulation pump, a heat exchanger, and a control system. The liquid cooling tank stores a liquid cooling medium. The battery assembly 5 is arranged in the liquid cooling tank and immersed in the liquid cooling medium. The heat generated by the charging and discharging process of the battery assembly 5 is absorbed by the high thermal conductivity of the liquid cooling medium, thereby realizing the cooling and heat dissipation of the battery unit. Among them, the circulation pump is mainly used to drive the liquid cooling medium to circulate in the liquid cooling tank to ensure that the heat can be effectively absorbed and transferred. The heat exchanger is mainly used to transfer the heat in the liquid cooling medium to the secondary refrigerant, such as cooling water or refrigerant, to ensure that the heat can be transferred quickly and effectively. The control system is used to monitor and control the temperature, flow rate, pressure and other parameters of the liquid cooling medium to ensure that the liquid cooling medium is within a suitable temperature range.

[0051] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal 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, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle, characterized in that: Including body floor and battery pack; The vehicle body floor comprises a top plate (1) and a side plate (2), wherein the side plate (2) is arranged around the top plate (1), and a central channel (3) is formed between the top plate (1) and the side plate (2); The battery pack is arranged in the central channel (3), the battery pack comprises a bottom shell (4) and a battery assembly (5), the battery assembly (5) is placed on the bottom shell (4), and the side plate (2) is fixedly connected to the bottom shell (4) to fix the battery pack in the central channel (3); The battery pack also includes a main control component, which is arranged outside the bottom shell (4) and connected to the side plate (2).

2. The vehicle according to claim 1, characterized in that Also includes a sealing member (6); The sealing member (6) is arranged between the side plate (2) and the bottom shell (4) and is used to seal the gap between the side plate (2) and the bottom shell (4).

3. The vehicle according to claim 1, characterized in that The side plate (2) and the bottom shell (4) are detachably connected via a fastener (7).

4. The vehicle according to claim 1, characterized in that The battery pack also includes a high-voltage connection assembly, which is arranged outside the bottom shell (4) and connected to the side plate (2).

5. The vehicle according to claim 4, characterized in that The battery pack further comprises a high-voltage distributor (8), and the main control component and the high-voltage connection component are integrated in the high-voltage distributor (8).

6. The vehicle according to claim 4, characterized in that The end of the bottom shell (4) is provided with a wiring port (9), one end of the wiring port (9) is electrically connected to the battery assembly (5), and the other end is electrically connected to the main control assembly and the high-voltage connection assembly.

7. The vehicle according to claim 6, characterized in that The side plate (2) is provided with an opening, and the wiring port (9) passes through the opening and is exposed outside the side plate (2).

8. The vehicle according to claim 4, characterized in that The side panels (2) include a front side panel (2) and a rear side panel (2) arranged opposite to each other along the length direction of the vehicle body, and a left side panel (2) and a right side panel (2) arranged opposite to each other along the width direction of the vehicle body; The main control component and the high-voltage connection component are both connected to the rear side plate (2).

9. The vehicle according to claim 1, characterized in that The battery pack further comprises a liquid cooling tank, the liquid cooling tank being arranged on the bottom shell (4), and the liquid cooling tank storing a liquid cooling medium; The battery assembly (5) is arranged in the liquid cooling tank and is immersed in the liquid cooling medium.

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