Lower vehicle body arrangement structure of extended-range electric vehicle

Abstract

The invention belongs to the technical field of electric vehicles, and discloses a lower vehicle body arrangement structure of an extended-range electric vehicle, which comprises a lower vehicle body, a battery pack, an exhaust pipe, a brake hard pipe, an oil supply pipe, an oil tank, a front suspension and a rear suspension, a first mounting edge beam is arranged on the left side of the battery pack, and a second mounting edge beam is arranged on the right side of the battery pack; the first installation boundary beam is connected with the lower portion of a doorsill on one side of the lower vehicle body, the second installation boundary beam is connected with the lower portion of a doorsill on the other side of the lower vehicle body, the first installation boundary beam is provided with a U-shaped structure, the U-shaped structure is used for containing the middle section of the exhaust pipe, one end of the exhaust pipe is installed on the front suspension, and the other end of the exhaust pipe is installed on the rear suspension. The brake hard pipe and the oil supply pipe penetrate through the lower vehicle body, the oil supply pipe is connected with the oil tank, the oil tank is arranged on the rear suspension, the front suspension is arranged at the front end of the lower vehicle body, and the rear suspension is arranged at the rear end of the lower vehicle body. According to the lower vehicle body arrangement structure of the range-extending type electric vehicle, X-direction and Y-direction spaces are utilized to the maximum extent, and the space utilization rate of the battery pack is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a lower body arrangement structure of an extended-range electric vehicle. Background Art

[0002] An extended-range electric vehicle is an electric vehicle that uses electricity as its main power source and a generator as its auxiliary power source. In daily driving, an extended-range electric vehicle is similar to a pure electric vehicle and is in pure electric mode. When the battery level is low, the engine starts to supplement the electric energy required for the vehicle to travel. Compared with pure electric vehicles, extended-range electric vehicles contain two systems, fuel and pure electric, and the lower body structure is more complex.

[0003] The existing extended-range electric vehicle lower body solution has a small battery pack space, which limits the pure electric power and pure electric range. The space utilization of the battery compartment can be further improved. The current pain points and difficulties of extended-range electric vehicles are how to achieve a pure electric range that satisfies users and how to achieve a lower body layout solution for a large battery pack. Summary of the invention

[0004] The object of the present invention is to provide a lower body arrangement structure of an extended-range electric vehicle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A lower body arrangement structure of an extended-range electric vehicle comprises a lower body, a battery pack, an exhaust pipe, a brake pipe, an oil supply pipe, a fuel tank, a front suspension and a rear suspension, wherein a first mounting side beam is arranged on the left side of the battery pack, and a second mounting side beam is arranged on the right side of the battery pack, the first mounting side beam is connected to the lower part of a door sill on one side of the lower body, and the second mounting side beam is connected to the lower part of a door sill on the other side of the lower body, the first mounting side beam is provided with a U-shaped structure, and the U-shaped structure is used to accommodate a middle section of the exhaust pipe, one end of the exhaust pipe is installed on the front suspension, and the other end of the exhaust pipe is installed on the rear suspension, the brake pipe and the oil supply pipe are passed through the lower body, the oil supply pipe is connected to the fuel tank, and the fuel tank is arranged on the rear suspension, the front suspension is arranged at the front end of the lower body, and the rear suspension is arranged at the rear end of the lower body.

[0007] Optionally, the lower body is provided with a first channel and a second channel along the length direction of the body, the brake hard pipe is passed through the first channel, and the oil supply pipe is passed through the second channel.

[0008] Optionally, one end of the exhaust pipe is connected to a three-way catalytic converter, and the three-way catalytic converter is close to the front suspension. The other end of the exhaust pipe is connected to a muffler, and the muffler is close to the rear suspension.

[0009] Optionally, a circuit interface and a cooling water channel interface are provided at one end of the battery pack close to the front suspension.

[0010] Optionally, a front subframe of the front suspension is provided with a first groove, and the exhaust pipe is passed through the first groove.

[0011] Optionally, a second groove is formed in the rear subframe of the rear suspension, and the exhaust pipe is passed through the second groove.

[0012] Optionally, the fuel tank is located between two trailing arms of the rear suspension.

[0013] Optionally, the opening of the U-shaped structure faces downward.

[0014] Beneficial effects of the present invention:

[0015] The lower body arrangement structure of the extended-range electric vehicle provided by the present invention is based on the prior art. A first mounting side beam is arranged on the left side of the battery pack, and a second mounting side beam is arranged on the right side of the battery pack. The first mounting side beam is connected to the lower part of the door sill on one side of the lower body, and the second mounting side beam is connected to the lower part of the door sill on the other side of the lower body, so as to maximize the use of the Y-direction space and ensure the Y-direction utilization rate of the battery pack; one end of the exhaust pipe is installed on the front suspension, and the other end of the exhaust pipe is installed on the rear suspension, and the middle section of the exhaust pipe is accommodated in the U-shaped structure of the first mounting side beam, thereby improving the overall space utilization rate of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the lower body arrangement structure of the extended-range electric vehicle provided by the present invention;

[0018] Figure 2 is a cross-sectional view of a battery pack in the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the battery pack in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the front suspension in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the rear suspension in the present invention.

[0022] In the figure:

[0023] 100, lower body; 200, battery pack; 210, first mounting side beam; 211, U-shaped structure; 220, second mounting side beam; 300, exhaust pipe; 310, three-way catalytic converter; 320, muffler; 400, brake pipe; 500, fuel supply pipe; 600, fuel tank; 700, front suspension; 710, first groove; 800, rear suspension; 810, second groove. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1 to 5 As shown, the present invention provides a lower body arrangement structure of an extended-range electric vehicle, including a lower body 100, a battery pack 200, an exhaust pipe 300, a brake hard pipe 400, an oil supply pipe 500, a fuel tank 600, a front suspension 700 and a rear suspension 800. Among them, a first mounting side beam 210 is arranged on the left side of the battery pack 200, and a second mounting side beam 220 is arranged on the right side of the battery pack 200. The first mounting side beam 210 is connected to the lower part of the door sill on one side of the lower body 100, and the second mounting side beam 220 is connected to the lower part of the door sill on the other side of the lower body 100. The first mounting side beam 210 is provided with a U-shaped structure 211, and the U-shaped structure 211 is used to accommodate the middle section of the exhaust pipe 300. One end of the exhaust pipe 300 is installed on the front suspension 700, and the other end of the exhaust pipe 300 is installed on the rear suspension 800. The brake hard pipe 400 and the oil supply pipe 500 are passed through the lower body 100, and the oil supply pipe 500 is connected to the oil tank 600. The oil tank 600 is arranged on the rear suspension 800, the front suspension 700 is arranged at the front end of the lower body 100, and the rear suspension 800 is arranged at the rear end of the lower body 100.

[0030] The lower body arrangement structure of the extended-range electric vehicle provided by the present invention is based on the prior art. A first mounting side beam 210 is provided on the left side of the battery pack 200, and a second mounting side beam 220 is provided on the right side of the battery pack 200. The first mounting side beam 210 is connected to the lower portion of the door sill on one side of the lower body 100, and the second mounting side beam 220 is connected to the lower portion of the door sill on the other side of the lower body 100, so as to maximize the use of the Y-direction space and ensure the Y-direction utilization rate of the battery pack 200; one end of the exhaust pipe 300 is installed on the front suspension 700, and the other end of the exhaust pipe 300 is installed on the rear suspension 800, and the middle section of the exhaust pipe 300 is accommodated in the U-shaped structure 211 of the first mounting side beam 210, thereby improving the overall space utilization rate of the battery pack 200.

[0031] Exemplarily, the opening of the U-shaped structure 211 may be facing downward.

[0032] In some embodiments, the lower body 100 is provided with a first channel and a second channel along the length direction of the body, the brake pipe 400 is passed through the first channel, and the oil supply pipe 500 is passed through the second channel. The brake pipe 400 enters the first channel and is then connected to the brake hose, and the oil supply pipe 500 enters the second channel and is then connected to the oil tank 600, so as to make full use of the space of the lower body 100.

[0033] One end of the exhaust pipe 300 is connected to a three-way catalytic converter 310, which is close to the front suspension 700, and the other end of the exhaust pipe 300 is connected to a muffler 320, which is close to the rear suspension 800. A circuit interface and a cooling water channel interface are provided at one end of the battery pack 200 close to the front suspension 700 to save pipeline length.

[0034] In some embodiments, the front subframe of the front suspension 700 is provided with a first groove 710, and the exhaust pipe 300 is passed through the first groove 710. Specifically, the first groove 710 is provided below the front subframe of the front suspension 700, thereby ensuring the flatness of the vehicle chassis and saving the space in the front cabin of the vehicle.

[0035] The rear subframe of the rear suspension 800 is provided with a second groove 810, and the exhaust pipe 300 is passed through the second groove 810. Specifically, the second groove 810 is provided below the rear subframe of the rear suspension 800, thereby ensuring the flatness of the automobile chassis and saving the rear cabin space of the automobile.

[0036] The fuel tank 600 is located between the two longitudinal arms of the rear suspension 800. Specifically, the fuel tank 600 is arranged behind the battery pack 200 and in front of the rear subframe of the rear suspension 800, making full use of the X-direction space, ensuring the X-direction utilization rate of the battery pack 200, increasing the use space of the battery pack 200, and increasing the capacity of the battery pack 200.

[0037] The lower body arrangement structure of the extended-range electric vehicle is based on the prior art. A first mounting side beam 210 is arranged on the left side of the battery pack 200, and a second mounting side beam 220 is arranged on the right side of the battery pack 200. The first mounting side beam 210 is connected to the lower part of the door sill on one side of the lower body 100, and the second mounting side beam 220 is connected to the lower part of the door sill on the other side of the lower body 100, so as to maximize the use of the Y-direction space and ensure the Y-direction utilization rate of the battery pack 200. The fuel tank 600 is arranged behind the battery pack 200 and in front of the rear subframe of the rear suspension 800. The fuel tank 600 is located between the two longitudinal arms of the rear suspension 800, so as to make full use of the X-direction space. Ensure the X-direction utilization of the battery pack 200, increase the use space of the battery pack 200, and increase the capacity of the battery pack 200; one end of the exhaust pipe 300 is installed on the front suspension 700, and the other end of the exhaust pipe 300 is installed on the rear suspension 800, and the middle section of the exhaust pipe 300 is accommodated in the U-shaped structure 211 of the first mounting side beam 210, which improves the overall space utilization of the battery pack 200 and facilitates the passage of the exhaust pipe 300; the lower body 100 is provided with a first channel and a second channel along the length direction of the body, the brake hard pipe 400 is passed through the first channel, and the oil supply pipe 500 is passed through the second channel, which facilitates the passage of the brake hard pipe 400 and the oil supply pipe 500.

[0038] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt mature means in the prior art, and the machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A lower body arrangement structure of an extended-range electric vehicle, characterized in that: The invention comprises a lower body, a battery pack, an exhaust pipe, a brake pipe, an oil supply pipe, a fuel tank, a front suspension and a rear suspension. A first mounting side beam is arranged on the left side of the battery pack, and a second mounting side beam is arranged on the right side of the battery pack. The first mounting side beam is connected to the lower part of the door sill on one side of the lower body, and the second mounting side beam is connected to the lower part of the door sill on the other side of the lower body. The first mounting side beam is provided with a U-shaped structure, and the U-shaped structure is used to accommodate the middle section of the exhaust pipe. One end of the exhaust pipe is installed on the front suspension, and the other end of the exhaust pipe is installed on the rear suspension. The brake pipe and the oil supply pipe are passed through the lower body, and the oil supply pipe is connected to the fuel tank. The fuel tank is arranged on the rear suspension, the front suspension is arranged on the front end of the lower body, and the rear suspension is arranged on the rear end of the lower body.

2. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: The lower vehicle body is provided with a first channel and a second channel along the length direction of the vehicle body, the brake hard pipe is passed through the first channel, and the oil supply pipe is passed through the second channel.

3. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: One end of the exhaust pipe is connected to a three-way catalytic converter, and the three-way catalytic converter is close to the front suspension. The other end of the exhaust pipe is connected to a muffler, and the muffler is close to the rear suspension.

4. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: A circuit interface and a cooling water channel interface are provided at one end of the battery pack close to the front suspension.

5. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: The front subframe of the front suspension is provided with a first groove, and the exhaust pipe is passed through the first groove.

6. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: The rear subframe of the rear suspension is provided with a second groove, and the exhaust pipe is passed through the second groove.

7. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: The oil tank is located between the two trailing arms of the rear suspension.

8. The lower body arrangement structure of the extended-range electric vehicle according to claim 1, characterized in that: The opening of the U-shaped structure faces downward.

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