An electric vehicle

Abstract

The present invention provides an electric vehicle, comprising: a vehicle body, the vehicle body having a vehicle body floor; a rechargeable battery, the rechargeable battery having a battery cover and a battery box, the battery cover being provided with a plurality of connecting assemblies, the battery cover being connected to the bottom surface of the vehicle body floor via the plurality of connecting assemblies, wherein the plurality of connecting assemblies are located at different positions on the bottom surface of the vehicle body floor, and the extension direction of the connection limit point of at least one of the plurality of connecting assemblies is arranged at an angle to the extension direction of the connection limit point of another connecting assembly. In the present invention, the distribution directions of the connection points between the rechargeable battery and the vehicle body floor are different, thereby increasing the effective area between the rechargeable battery and the vehicle body floor, thereby making the connection between the rechargeable battery and the vehicle body floor more secure. The above-mentioned connection between the rechargeable battery and the vehicle body floor is achieved only by connecting assemblies, and has a simple structure and convenient connection.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery replacement, and in particular to an electric vehicle. Background Art

[0002] When the power battery is exhausted, it needs to be charged immediately to ensure the normal driving of the electric vehicle. Although charging facilities are being continuously improved in various places to make charging more convenient, when users are pressed for time, in order to avoid excessively long charging times, the main choice is to replace the electric vehicle power battery to solve the above problem. When the power battery is low on power, you can go to the charging station and directly replace it with a fully charged battery pack.

[0003] At present, the structure of the battery replacement mechanism of electric vehicles is generally complex and redundant, the design cost is high, and the operation is time-consuming and labor-intensive. Summary of the Invention

[0004] The main purpose of the present invention is to provide an electric vehicle to solve the problem of the complexity of the battery replacement mechanism of the electric vehicle.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an electric vehicle, comprising: a vehicle body, the vehicle body having a vehicle body floor; a rechargeable battery, the rechargeable battery having a battery cover and a battery box, the battery cover being provided with a plurality of connecting components, the battery cover being connected to the bottom surface of the vehicle body floor through the plurality of connecting components, wherein the plurality of connecting components are located at different positions on the bottom surface of the vehicle body floor, and an extension direction of a connection limit point of at least one connecting component among the plurality of connecting components is arranged at an angle to an extension direction of a connection limit point of another connecting component.

[0006] Furthermore, the multiple connecting components include a first connecting component and a second connecting component, the first connecting component is slidably arranged along the extension direction of the connection limit point of the first connecting component, and / or the second connecting component is slidably arranged along the extension direction of the connection limit point of the second connecting component.

[0007] Furthermore, the extension direction of the connection limit point of the first connection component is perpendicular to the extension direction of the connection limit point of the second connection component. The first connection component is arranged along the length direction of the vehicle body, and the second connection component is arranged along the width direction of the vehicle body.

[0008] Furthermore, at least one of the first connecting component and the second connecting component includes: a slide rail, which is connected to the battery cover; a slider, which is connected to the vehicle body floor, and the slider is detachably connected to the slide rail, and the slider can be slidably arranged along the length direction of the slide rail.

[0009] Furthermore, the slide rail is slidably connected to the battery cover along an extension direction of the slide rail width.

[0010] Furthermore, a locking piece is provided on the slider, and the slider is locked on the slide rail by adjusting the locking piece.

[0011] Furthermore, the multiple connecting components include a first connecting component and a second connecting component, and at least one of the first connecting component and the second connecting component includes: a sliding rail, which is connected to the battery cover and has a snap-in groove; a slider, which is connected to the vehicle body floor and has a snap-in block, which is detachably snap-in to the snap-in groove.

[0012] Furthermore, a plurality of cross beams are provided in the battery box, the cross beams abutting against the inner wall of the battery cover or the inner top wall of the battery box, and at least part of the connecting components are connected to the cross beams.

[0013] Furthermore, the upper surface size of the battery case is larger than the upper surface size of the battery cover, the connecting component spans the connection position between the battery case and the battery cover, and at least part of the connecting component is connected to the upper surface of the battery case.

[0014] Furthermore, an outer edge plate extending outward is provided on the circumferential side wall of the battery box, and a plurality of mounting holes are distributed on the outer edge plate, and the outer edge plate is used to be connected to the vehicle body floor.

[0015] Using the technical solution of the present invention, the rechargeable battery is connected to the underside of the vehicle body floor via multiple connecting assemblies. The extension direction of the connection points of at least one connecting assembly forms a certain angle with the extension direction of the connection points of another connecting assembly. This means that the connection points between the rechargeable battery and the vehicle body floor are distributed in different directions. This increases the effective area between the rechargeable battery and the vehicle body floor, thereby further strengthening the connection between the rechargeable battery and the vehicle body floor. This connection between the rechargeable battery and the vehicle body floor, achieved solely through connecting assemblies, offers a simple structure and convenient connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of an electric vehicle according to the present invention is shown;

[0018] Figure 2 shows a schematic structural diagram of a rechargeable battery;

[0019] Figure 3 Shows a schematic perspective view of the structure of a rechargeable battery.

[0020] The above drawings include the following reference numerals:

[0021] 100, body; 101, body floor;

[0022] 200, rechargeable battery; 201, battery cover; 202, battery box; 203, sealing strip; 204, outer edge plate; 205, mounting hole; 206, crossbeam;

[0023] 300. First connection component;

[0024] 400. Second connection component;

[0025] 500, front suspension;

[0026] 600, rear suspension. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0031] Combine Figures 1 to 3 As shown, according to a specific embodiment of the present application, an electric vehicle is provided.

[0032] Specifically, if Figure 1 As shown, the electric vehicle includes a vehicle body 100, a rechargeable battery 200, and a connection assembly. The rechargeable battery 200 has a battery cover 201 and a battery box 202. The battery cover 201 is provided with multiple connection assemblies, which connect the battery cover 201 to the bottom surface of the vehicle body floor 101 through the multiple connection assemblies. The multiple connection assemblies are located at different positions on the bottom surface of the vehicle body floor 101, and the extension direction of the connection limit point of at least one of the multiple connection assemblies is arranged at an angle to the extension direction of the connection limit point of another connection assembly.

[0033] In the embodiment of the present application, the rechargeable battery 200 is connected to the bottom surface of the vehicle body floor 101 via multiple connecting assemblies. The extension direction of the connection points of at least one connecting assembly forms a certain angle with the extension direction of the connection points of another connecting assembly. This means that the connection points between the rechargeable battery 200 and the vehicle body floor 101 are distributed in different directions. This increases the active area between the rechargeable battery 200 and the vehicle body floor 101, thereby further strengthening the connection between the rechargeable battery 200 and the vehicle body floor 101. This connection between the rechargeable battery 200 and the vehicle body floor 101, achieved solely through connecting assemblies, results in a simple structure and convenient connection.

[0034] In one embodiment of the present application, the multiple connecting assemblies include a first connecting assembly 300 and a second connecting assembly 400. The first connecting assembly 300 is slidably disposed along the extension direction of the connecting stop point of the first connecting assembly 300, and / or the second connecting assembly 400 is slidably disposed along the extension direction of the connecting stop point of the second connecting assembly 400. That is, the rechargeable battery 200 can be slidably connected to the vehicle body floor 101 via both the first connecting assembly 300 and the second connecting assembly 400. Alternatively, the rechargeable battery 200 can be slidably connected to the vehicle body floor 101 via only one of the first connecting assembly 300 and the second connecting assembly 400, and then connected to the vehicle body floor 101 via another connection method other than a sliding connection, such as a snap connection or a screw connection, via the other of the first connecting assembly 300 and the second connecting assembly 400. The sliding connection and removal of the rechargeable battery 200 and the vehicle body floor 101 require only alignment prior to installation, eliminating the need for secondary position adjustment during the sliding installation process. During removal, the connection between the two can be released by sliding, making it convenient and quick.

[0035] The extension direction of the connection stop of the first connecting assembly 300 is perpendicular to the extension direction of the connection stop of the second connecting assembly 400, thereby expanding the contact area between the rechargeable battery 200 and the vehicle body floor 101 and strengthening the connection between the rechargeable battery 200 and the vehicle body floor 101. The first connecting assembly 300 is arranged along the length of the vehicle body, while the second connecting assembly 400 is arranged along the width of the vehicle body. This simplifies the connection structure of the first connecting assembly 300 and the second connecting assembly 400, making the assembly and disassembly process easier.

[0036] Specifically, at least one of the first connecting component 300 and the second connecting component 400 includes a slide rail and a slider, the slide rail is connected to the battery cover 201, the slider is connected to the vehicle body floor 101, the slider is detachably connected to the slide rail, and the slider can be slidably arranged along the length direction of the slide rail.

[0037] To prevent interference between the first connecting assembly 300 and the second connecting assembly 400 during the connection and removal of the rechargeable battery 200 from the vehicle body floor 101, the slide rail is configured to be slidable. Specifically, the slide rail is slidably connected to the battery cover 201 along the direction in which the slide rail extends. For example, the first connecting assembly 300 and the second connecting assembly 400 have the same structure, both including a slide rail and a slider. The slider is detachably connected to the slide rail, and the slider is slidably arranged along the length of the slide rail. During the disassembly and assembly process, the sliding rail of the first connecting component 300 is first aligned with the position of the slider, and then the first connecting component 300 is used to realize the initial connection and positioning of the rechargeable battery 200 and the vehicle body floor 101. Then, by moving the position of the sliding rail of the first connecting component 300, the sliding rail of the second connecting component 400 is aligned with the position of the slider, and then the second connecting component 400 is used to realize the secondary connection and positioning of the rechargeable battery 200 and the vehicle body floor 101. The connection is completed and the position of the sliding rail is locked. Since the first connecting component 300 and the second connecting component 400 are perpendicular, the first connecting component 300 and the second connecting component 400 can be interlocked.

[0038] To further enhance the stability of the connection of the rechargeable battery 200, a locking member is provided on the slider, which can be locked to the slide rail by adjusting the locking member. The locking member can be a locking bolt, which is tightened against the slide rail by twisting the locking bolt to lock the slider in position.

[0039] In another embodiment of the present application, the plurality of connection assemblies include a first connection assembly 300 and a second connection assembly 400, at least one of the first connection assembly 300 and the second connection assembly 400 includes: a slide rail and a slider, the slide rail is connected to the battery cover 201, the slide rail is provided with a snap-in groove, the slider is connected to the vehicle body floor 101, the slider is provided with a snap-in block, and the snap-in block is detachably snap-into the snap-in groove. Specifically, during the assembly and disassembly process of the rechargeable battery 200, the snap-in groove and the snap-in block are aligned and plugged in vertically, wherein the snap-in groove and the snap-in block can be elastically snap-into. In order to make the connection between the snap-in groove and the snap-in block more secure, through holes are provided on the sides of the snap-in groove and the snap-in block, and pins or bolts pass through the through holes to achieve the side connection between the snap-in groove and the snap-in block.

[0040] In the above embodiments, Figure 3 As shown, multiple crossbeams 206 are provided in the battery case 202. The crossbeams 206 abut against the inner wall of the battery cover 201 or the inner top wall of the battery case 202, and at least part of the connecting assembly is connected to the crossbeams 206. The connection between the connecting assembly and the crossbeams 206 increases the contact area between the connecting assembly and the rechargeable battery 200, making the connection between the connecting assembly and the rechargeable battery 200 more secure.

[0041] In each of the above embodiments, the upper surface size of the battery case 202 is larger than the upper surface size of the battery cover 201, the connecting component spans the connection position between the battery case 202 and the battery cover 201, and at least part of the connecting component is connected to the upper surface of the battery case 202. Specifically, Figure 2 As shown, a sealing strip 203 is provided at the junction of the battery case 202 and the battery cover 201, and the connecting assembly abuts against the sealing strip 203. The above connection method prevents only the battery cover 201 from being deformed due to force, which further damages the sealing between the battery cover 201 and the battery case 202.

[0042] In each of the aforementioned embodiments, an outwardly extending outer edge plate 204 is provided on the circumferential sidewalls of the battery housing 202. Multiple mounting holes 205 are evenly distributed on the outer edge plate 204, which is used to connect to the vehicle body floor 101. Specifically, threaded holes are provided on the bottom surface of the vehicle body floor 101, and the outer edge plate 204 is connected to the vehicle body floor 101 via screws, further enhancing the secure connection between the rechargeable battery 200 and the vehicle body floor 101.

[0043] Furthermore, if Figure 1 As shown, a front suspension 500 is connected below the front half of the vehicle body floor 101, and the front wheels are connected to the front suspension 500. A rear suspension 600 is connected below the rear half of the vehicle body floor 101, and the rear wheels are connected to the front suspension 500.

[0044] In the above embodiment, the design method of the rechargeable battery 200 is as follows:

[0045] The maximum size of the battery box 202 is determined based on the total energy required by the rechargeable battery 200, CHR, and the maximum installation GCR of the vehicle body:

[0046] Limit size area S = CHR*CC*GCR*exp(A)*0.895*exp(tan(-A))*sin(D) / ln(S) / lg(X), where CC is the battery total energy related structural coefficient, which is generally taken as 0.58-0.85, A is the battery Z-direction size compensation parameter, which is generally taken as 0>A>-0.45, D is the layout integration angle compensation parameter, which is generally taken as 87°>D>63°, S is the battery torsion layout safety system, which is generally taken as 3.21>S>e, and X is the battery fixation safety system, which is generally taken as 13>X>10.

[0047] Determine the limit size of the battery box 202 based on S:

[0048] Define the length C = S / (GB*E)*2 / 5*sin(D)*sin(D)*sin(D)*ln(S)*lg(X)*lg(X), where GB is the process length limit size, E is the safety size factor, which is generally taken as 1.03-1.87, D is the integrated compensation parameter, which is generally taken as 87°>D>63°, S is the battery torsion layout safety system, which is generally taken as 3.21>S>e, and X is the battery fixation safety system, which is generally taken as 13>X>10.

[0049] The width of the battery case 202 is defined as H = S / A*0.87, where CC is the capacity-related structural coefficient, generally 0.58-0.85, and A is the weight compensation parameter, generally 0>A>-0.45.

[0050] All the above parameters need to be corrected and fed back according to CAE simulation results.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition to the above, it should be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like in this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also falls within the scope of the present invention.

[0053] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0054] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An electric vehicle, characterized in that: include: A vehicle body (100), wherein the vehicle body (100) has a vehicle body floor (101); A rechargeable battery (200), the rechargeable battery (200) having a battery cover (201) and a battery box (202), the battery cover (201) being provided with a plurality of connection assemblies, the battery cover (201) being connected to the bottom surface of the vehicle body floor (101) via the plurality of connection assemblies, wherein the plurality of connection assemblies are located at different positions on the bottom surface of the vehicle body floor (101), and the extension direction of the connection limit point of at least one of the plurality of connection assemblies is arranged at an angle to the extension direction of the connection limit point of another of the plurality of connection assemblies; The plurality of connecting components include a first connecting component (300) and a second connecting component (400), wherein the first connecting component (300) is slidably arranged along the extension direction of the connection limit point of the first connecting component (300), and / or the second connecting component (400) is slidably arranged along the extension direction of the connection limit point of the second connecting component (400).

2. The electric vehicle according to claim 1, characterized in that The extension direction of the connection limit point of the first connection component (300) is perpendicular to the extension direction of the connection limit point of the second connection component (400); the first connection component (300) is arranged along the length direction of the vehicle body (100); and the second connection component (400) is arranged along the width direction of the vehicle body (100).

3. The electric vehicle according to claim 2, characterized in that At least one of the first connection assembly (300) and the second connection assembly (400) comprises: A slide rail connected to the battery upper cover (201); A slider is connected to the vehicle body floor (101), the slider is detachably connected to the slide rail, and the slider can be slidably arranged along the length direction of the slide rail.

4. The electric vehicle according to claim 3, characterized in that The slide rail is slidably connected to the battery cover (201) along the extension direction of the slide rail width.

5. The electric vehicle according to claim 4, characterized in that The slider is provided with a locking piece, and the slider is locked on the slide rail by adjusting the locking piece.

6. The electric vehicle according to claim 1, characterized in that The plurality of connection components include a first connection component (300) and a second connection component (400), and at least one of the first connection component (300) and the second connection component (400) includes: A slide rail, the slide rail is connected to the battery upper cover (201), and a snap-fit ​​groove is provided on the slide rail; A slider is connected to the vehicle body floor (101), and a clamping block is provided on the slider, and the clamping block is detachably clamped to the clamping groove.

7. The electric vehicle according to any one of claims 1 to 6, characterized in that: A plurality of crossbeams (206) are provided in the battery box (202), the crossbeams (206) abutting against the inner wall of the battery upper cover (201) or the inner top wall of the battery box (202), and at least part of the connecting components are connected to the crossbeams (206).

8. The electric vehicle according to any one of claims 1 to 6, characterized in that: The upper surface size of the battery box (202) is larger than the upper surface size of the battery cover (201), the connecting component spans the connection position between the battery box (202) and the battery cover (201), and at least part of the connecting component is connected to the upper surface of the battery box (202).

9. The electric vehicle according to any one of claims 1 to 6, characterized in that: An outwardly extending outer edge plate (204) is provided on the circumferential side wall of the battery box (202), and a plurality of mounting holes (205) are evenly distributed on the outer edge plate (204). The outer edge plate (204) is used to be connected to the vehicle body floor (101).

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