Chassis structure and vehicle

Abstract

The utility model provides a chassis structure and a vehicle, and relates to the technical field of vehicles, the chassis structure comprises a frame and a battery pack, the frame is provided with a first guide part, and the battery pack is provided with a second guide part matched with the first guide part. And the first guide part is configured to guide the second guide part when the battery pack gets close to the frame from bottom to top, so that the battery pack abuts against a preset position on the frame. According to the chassis structure disclosed by the embodiment of the invention, the battery pack can be quickly and accurately mounted in place under the guide action of the first guide part on the second guide part, so that the difficulty of mounting or replacing the battery pack is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a chassis structure and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, electric commercial vehicles (such as electric heavy trucks, electric light trucks, etc.) have gradually been used, and their market share and usage frequency are increasing.

[0003] Battery packs are widely used as a power source in new energy vehicles. In related technologies, the battery packs are fixedly mounted on the vehicle frame to power the entire vehicle.

[0004] However, due to the weight of the battery pack, the battery pack is prone to shaking during installation or replacement, making it difficult to install it quickly and accurately, making the installation or replacement of the battery pack more difficult. Utility Model Content

[0005] Based on this, the present application provides a chassis structure and a vehicle to solve the problem that the battery pack on the existing vehicle is difficult to install quickly and accurately during the installation or replacement process.

[0006] In a first aspect, the present application provides a chassis structure, comprising a vehicle frame and a battery pack;

[0007] The vehicle frame is provided with a first guide portion, and the battery pack is provided with a second guide portion matching the first guide portion;

[0008] The first guide portion is configured to guide the second guide portion when the battery pack is brought closer to the vehicle frame from bottom to top, so that the battery pack abuts against a predetermined position on the vehicle frame.

[0009] In a possible implementation, one of the first guide portion and the second guide portion is a guide hole, and the other is a guide pin matching the guide hole.

[0010] In a possible implementation, the guide pin includes a guide section and a positioning section connected to one end of the guide section, and the cross-section of the guide section gradually decreases in a direction away from the positioning section;

[0011] The positioning segment is used to be connected to the battery pack or the vehicle frame. When the battery pack is located at a predetermined position, the positioning segment is inserted into the guide hole.

[0012] In a possible implementation, the second guide portion is a guide pin, and the guide section faces vertically upward;

[0013] The number of the second guide portions is at least two, and the two second guide portions are arranged on two opposite sides of the battery pack.

[0014] In a possible implementation, the battery pack has a plurality of hanging portions, each of which is arranged on a side facing away from the vehicle frame.

[0015] In a possible implementation, the battery pack is provided with a manual maintenance switch and / or an explosion-proof valve, and the manual maintenance switch and / or the explosion-proof valve are arranged on a side facing away from the vehicle frame.

[0016] In one possible implementation, the vehicle frame includes two longitudinal beams and multiple cross beams, the two longitudinal beams are spaced apart, the multiple cross beams are spaced apart along the extension direction of the longitudinal beams and are respectively connected to the two longitudinal beams, and the first guide portion is located on one side of the longitudinal beam.

[0017] In a possible implementation, the battery pack has two mounting slots, each longitudinal beam is correspondingly embedded in each mounting slot, and the upper surface of the battery pack is not higher than the upper surface of the longitudinal beam.

[0018] In one possible implementation, the battery pack has multiple connectors in the middle, and the crossbeam is provided with wire holes arranged along the extension direction of the longitudinal beam. The wire holes are used for the vehicle's wiring harness or pipelines to pass through and connect to the connectors.

[0019] In a second aspect, the present application further provides a vehicle, comprising a vehicle body, wherein the vehicle body is provided with any one of the chassis structures provided in the first aspect.

[0020] The present application provides a chassis structure and vehicle, comprising a vehicle frame and a battery pack. A first guide portion is provided on the vehicle frame, and a second guide portion is provided on the battery pack to match the first guide portion. When the battery pack is brought upward toward the vehicle frame, the first guide portion guides the second guide portion, causing the battery pack to abut a predetermined position on the vehicle frame. Thus, the chassis structure provided by the present application, with the first guide portion guiding the second guide portion, enables the battery pack to be quickly and accurately installed, thereby reducing the difficulty of installing or replacing the battery pack and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A schematic diagram of the chassis structure provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0024] Reference numerals:

[0025] 100: frame;

[0026] 101: longitudinal beam;

[0027] 1011: bracket;

[0028] 102: beam;

[0029] 1021: threading hole;

[0030] 110: first guide portion;

[0031] 200: battery pack;

[0032] 210: second guide portion;

[0033] 211: guide section;

[0034] 212: positioning segment;

[0035] 220: hooking part;

[0036] 230: Manual maintenance switch;

[0037] 240: explosion-proof valve;

[0038] 250: mounting slot;

[0039] 260: Connector. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of methods and apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

[0041] The terms "first," "second," "third," "fourth," etc. (if any) in the specification and claims of the present application and in the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the numbers 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 apparatus comprising 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 apparatus.

[0042] Currently, battery packs for electric heavy-duty and light-duty trucks are typically mounted on the vehicle frame, such as at the bottom or on either side. To facilitate battery replacement, the battery pack is typically bolted from the bottom up to the bottom of the frame or mounting frame. However, due to the lack of guides and positioning components between the battery pack and the frame, coupled with its weight, the battery pack is prone to shaking during installation or replacement, making it difficult to quickly and accurately install it. Furthermore, bolt hole alignment is difficult, making battery pack installation or replacement more difficult.

[0043] To address the aforementioned issues in the prior art, the present application provides a chassis structure and vehicle. The chassis structure provided herein includes a vehicle frame and a battery pack. By providing a first guide portion on the vehicle frame and a second guide portion on the battery pack that matches the first guide portion, when the battery pack is brought toward the vehicle frame from bottom to top, the first guide portion guides the second guide portion, causing the battery pack to abut a predetermined position on the vehicle frame. In other words, the guidance of the first guide portion on the second guide portion allows the battery pack to be quickly and accurately installed, thereby reducing the difficulty of battery pack installation or replacement and improving efficiency.

[0044] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0045] First, refer to Figure 1-Figure 2 As shown, an embodiment of the present application provides a chassis structure including a vehicle frame 100 and a battery pack 200 .

[0046] The vehicle frame 100 is provided with a first guide portion 110 , and the battery pack 200 is provided with a second guide portion 210 matching the first guide portion 110 .

[0047] The first guide portion 110 is configured to guide the second guide portion 210 when the battery pack 200 is moved from bottom to top toward the vehicle frame 100 , so that the battery pack 200 abuts against a predetermined position on the vehicle frame 100 .

[0048] The vehicle frame 100 in this embodiment is used to bear various loads inside and outside the vehicle. It is usually a frame-type structure spanning the front and rear axles of the vehicle, also called a beam. It can be composed of two longitudinal beams and several cross beams, and is supported on the wheels via a suspension device, a front axle, and a rear axle.

[0049] Among them, a first guide part 110 is provided on the frame 100. The first guide part 110 can be a guide hole, a guide pin, a guide column, a guide groove, etc. It can be directly set on the frame 100, or it can be set on a bracket 1011 of the frame 100. The bracket 1011 can be connected to one side or both sides of the width direction of the frame 100.

[0050] The battery pack 200 in this embodiment is generally rectangular and includes a housing and a battery cell module disposed within the housing. Multiple battery cell modules may be arranged side by side or stacked in multiple layers. The battery pack 200 may be directly connected to the vehicle frame 100 or connected to the vehicle frame 100 via a mounting bracket or the like.

[0051] It should be noted that the number of battery packs 200 can be determined according to actual needs. For example, Figure 1 As shown, in this embodiment, two battery packs 200 are spaced apart along the length of the vehicle frame 100. The width of each battery pack 200 roughly matches the width of the vehicle body. This arrangement takes into account the layout requirements of other components such as the front and rear axles. The specific shape, number, and location of the battery packs 200 can be determined based on actual needs.

[0052] Among them, a second guide portion 210 is provided on the battery pack 200, and the second guide portion 210 matches the first guide portion 110. Therefore, the second guide portion 210 can also be a guide pin, a guide hole, a guide groove, a guide column, etc. The second guide portion 210 can be provided on one side of the battery pack 200.

[0053] It should be noted that the first guide portions 110 correspond one-to-one with the second guide portions 210. Therefore, the first guide portions 110 and the second guide portions 210 can be arranged in groups, with at least two groups being provided, to accurately position the battery pack 200. Of course, more groups can be provided, but the number should not be too large to avoid the time required to align all the guide portions simultaneously.

[0054] Specifically, if Figure 1 、 Figure 2As shown, when the battery pack is installed on the bottom of the frame, the battery pack 200 is moved from bottom to top close to the bottom of the frame 100, as shown in FIG. Figure 1 As shown in the positive direction of the middle Z axis, the first guide portion 110 contacts the second guide portion 210 and guides the second guide portion 210 so that the battery pack 200 can quickly and accurately abut against a predetermined position on the vehicle frame 100 .

[0055] The predetermined position is the position of the battery pack 200 when it is installed on the vehicle frame 100 . The position can be determined according to actual needs and is not specifically limited in this embodiment.

[0056] It can be understood that, compared with the absence of a guide component between the vehicle frame 100 and the battery pack 200, the application of the chassis structure in this embodiment enables the battery pack 200 to be quickly and accurately installed in place under the guiding action of the first guide portion 110 on the second guide portion 210 between the battery pack 200 and the vehicle frame 100, thereby reducing the difficulty of installing or replacing the battery pack 200 and improving efficiency.

[0057] Thus, the chassis structure provided in the embodiment of the present application includes a vehicle frame 100 and a battery pack 200. By providing a first guide portion 110 on the vehicle frame 100 and a second guide portion 210 on the battery pack 200 that matches the first guide portion 110, when the battery pack 200 is brought toward the vehicle frame 100 from bottom to top, the first guide portion 110 guides the second guide portion 210 so that the battery pack 200 abuts a predetermined position on the vehicle frame 100. In other words, with the first guide portion 110 guiding the second guide portion 210, the battery pack 200 can be quickly and accurately installed in place, thereby reducing the difficulty of installing or replacing the battery pack 200 and improving efficiency.

[0058] In a possible design, one of the first guide portion 110 and the second guide portion 210 is a guide hole, and the other is a guide pin matching the guide hole.

[0059] In one example, Figure 2 As shown, the first guide portion 110 is a guide hole, and the second guide portion 210 is a guide pin that matches the guide hole. In this way, when the battery pack 200 is moved from bottom to top, the guide pin can be inserted into the guide hole to achieve rapid positioning.

[0060] In another example, not shown in the figure, the first guide portion 110 can also be a guide pin, and the second guide portion 210 can also be a guide hole that matches the guide pin. In this way, when the battery pack 200 is moved from bottom to top, the guide hole can be inserted into the guide pin to achieve rapid positioning.

[0061] Among them, the specific type and size of the guide hole and guide pin can be determined according to actual needs and are not specifically limited in this embodiment.

[0062] Furthermore, in this embodiment, the guide pin includes a guide segment 211 and a positioning segment 212 connected to one end of the guide segment 211 , and the cross-section of the guide segment 211 gradually decreases in a direction away from the positioning segment 212 .

[0063] The positioning section 212 is used to be connected to the battery pack 200 or the vehicle frame 100 . When the battery pack 200 is located at a predetermined position, the positioning section 212 is inserted into the guide hole.

[0064] Specifically, if Figure 2 As shown, the cross section of the guide section 211 gradually decreases in the direction away from the positioning section 212. Figure 2 As shown in the positive direction of the middle Z axis, that is, the guide segment 211 can be spike-shaped or pointed, so that the guide segment 211 is easier to insert into the guide hole and easier to install and operate.

[0065] The end of the positioning segment 212 that faces away from the guide segment 211 can be connected to the battery pack 200 or the frame 100 through a fastener. The outer diameter of the positioning segment 212 matches the guide hole to ensure that when the battery pack 200 is installed in place, the positioning segment 212 can be positioned in the guide hole to prevent the battery pack 200 from moving laterally and affecting the subsequent fixation of the bolts.

[0066] The length of the guide section 211 can be determined according to the thickness of the battery pack 200 or the mounting frame. The specific lengths of the guide section 211 and the positioning section 212 can be determined according to actual needs and are not specifically limited in this embodiment.

[0067] Furthermore, in this embodiment, the second guide portion 210 is a guide pin, and the guide section 211 is vertically upward.

[0068] There are at least two second guide portions 210 , and the two second guide portions 210 are disposed on opposite sides of the battery pack 200 .

[0069] Specifically, if Figure 1 As shown, the two guide pins are vertically arranged and installed on the approximate diagonal line of the battery pack 200, and are respectively located on both sides of the width direction of the frame 100. That is, the lateral distance between the two guide pins on the battery pack 200 is relatively far, which facilitates more accurate and rapid positioning of the battery pack 200 to the predetermined position.

[0070] Correspondingly, the first guide portion 110 is a guide hole, and at least one guide hole is provided on both sides of the frame 100 in the width direction so as to be installed correspondingly to the two guide pins on the battery pack 200 .

[0071] It should be noted that the number of the second guide portions 210 mentioned here is at least two, which is for a single battery pack 200 , that is, the number of the second guide portions 210 of each battery pack 200 is at least two.

[0072] In some embodiments, the battery pack 200 has a plurality of hanging portions 220 , and each hanging portion 220 is disposed on a side facing away from the vehicle frame 100 .

[0073] Specifically, if Figure 2 As shown, the hooking portion 220 is used to connect to the handling tool during the transportation of the battery pack 200, facilitating accurate lifting. The hooking portion 220 may be a hooking hole, a hooking protrusion, a hooking rod, etc. Some hooking portions 220 are located on both sides of the battery pack 200 along the X-axis, while others are located on both sides of the battery pack 200 along the Y-axis. However, all hooking portions 220 are located near the four corners of the battery pack 200 to ensure stability during the hanging process. The specific type, location, and number of the hooking portions 220 can be determined according to actual needs and are not specifically limited in this embodiment.

[0074] In some embodiments, the battery pack 200 has a manual maintenance switch 230 and / or an explosion-proof valve 240 , and the manual maintenance switch 230 and / or the explosion-proof valve 240 are disposed on a side facing away from the vehicle frame 100 .

[0075] Specifically, if Figure 1 As shown, the main function of the manual maintenance switch 230 (full name: Manual Service Disconnect, English abbreviation: MSD) is to quickly disconnect the high-voltage circuit to protect the safety of technicians repairing electric vehicles in high-voltage environments or to respond to sudden events, so that maintenance work can be carried out in a safer state. For example, in the event of an external short circuit, the high voltage needs to be disconnected during maintenance. By setting the manual maintenance switch 230 along the battery pack 200 Figure 1 The outermost side in the Y-axis direction is convenient for maintenance personnel to operate.

[0076] When the explosion-proof valve 240 on the battery pack 200 detects that the pressure and temperature inside the battery exceed the set value, it will rupture from the notch and release the pressure to reduce the pressure inside the battery and avoid the occurrence of explosion accidents. Figure 1 The outermost side in the Y-axis direction is located so that emergency measures such as fire extinguishing and cooling can be carried out in time when thermal runaway occurs.

[0077] In some embodiments, the vehicle frame 100 includes two longitudinal beams 101 and multiple cross beams 102 . The two longitudinal beams 101 are spaced apart. The multiple cross beams 102 are spaced apart along the extension direction of the longitudinal beams 101 and are respectively connected to the two longitudinal beams 101 . The first guide portion 110 is located on one side of the longitudinal beam 101 .

[0078] Set it up like this, Figure 1 As shown, the ends of each crossbeam 102 are fastened to two longitudinal beams 101 to maintain stability. For example, a battery pack 200 is placed between every two crossbeams 102, ensuring structural stability while also ensuring space utilization. The specific structural types, installation locations, and number of longitudinal beams 101 and 102 can be determined based on actual needs and are not subject to further restrictions in this embodiment.

[0079] Furthermore, in this embodiment, the battery pack 200 has two mounting slots 250 , and each longitudinal beam 101 is correspondingly embedded in each mounting slot 250 , and the upper surface of the battery pack 200 is not higher than the upper surface of the longitudinal beam 101 .

[0080] Set it up like this, Figure 1 As shown, the space between the longitudinal beams 101 and on both sides of the longitudinal beams 101 can be fully utilized to arrange the battery pack 200, which can make the structure more compact, reduce the vertical installation space of the battery pack 200, and avoid the chassis being too low to the ground.

[0081] The upper surface of the battery pack 200 is not higher than the upper surface of the longitudinal beam 101, and certainly not higher than the upper surface of the cross beam 102, so as to avoid interference between the battery pack 200 and other components such as the cargo box on the frame 100, thereby avoiding damage to the battery pack 200. Figure 1 The total length in the Y-axis direction should not exceed 2550mm to avoid exceeding the width of the vehicle body or cargo box.

[0082] Furthermore, in this embodiment, the battery pack 200 has multiple connectors 260 in the middle portion, and the cross beam 102 is provided with wire holes 1021 arranged along the extension direction of the longitudinal beam 101. The wire holes 1021 are used for the vehicle's wiring harness or pipelines to pass through and connect to the connectors 260.

[0083] Specifically, if Figure 1 As shown, the connector 260 may include a high-voltage connector, a low-voltage connector, a thermal management connector, etc. The high-voltage connector, the low-voltage connector, and the thermal management connector may be arranged along the Figure 1 They are arranged in sequence in the Y-axis direction and are located in the area between the two longitudinal beams 101 to protect the high-voltage connector, the low-voltage connector, and the thermal management joint.

[0084] Among them, the high-voltage connector and the low-voltage connector are plugged in and out horizontally, such as along Figure 1 As shown in the X-axis direction, the thermal management connector is plugged in and out vertically. Figure 1 In the Z-axis direction. In addition, a threading hole 1021 is provided on the crossbeam 102 adjacent to the connector 260. The threading hole 1021 is arranged along the extension direction of the longitudinal beam 101 so that the front control unit can connect the wiring harness or pipeline to each connector 260 through the threading hole 1021. The threading hole 1021 facilitates wiring and can also fix the wiring harness or pipeline to prevent tangled wires. The size and shape of the threading hole 1021 can be determined according to actual needs. The specific type and quantity of the connector 260 can be determined according to actual layout requirements and are not specifically limited in this embodiment.

[0085] In a second aspect, an embodiment of the present application further provides a vehicle body, on which the chassis structure provided by any of the above embodiments is provided.

[0086] The structure of the chassis structure has been described in detail in the above embodiments and will not be repeated here.

[0087] The vehicle provided in the embodiment of the present application is configured with a chassis structure including a frame 100 and a battery pack 200. A first guide portion 110 is provided on the frame 100, and a second guide portion 210 is provided on the battery pack 200 to match the first guide portion 110. As the battery pack 200 is brought closer to the frame 100 from bottom to top, the first guide portion 110 guides the second guide portion 210, so that the battery pack 200 abuts a predetermined position on the frame 100. In other words, with the first guide portion 110 guiding the second guide portion 210, the battery pack 200 can be quickly and accurately installed, thereby reducing the difficulty of installing or replacing the battery pack 200 and improving efficiency.

[0088] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the claims.

[0089] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A chassis structure, characterized in that: Comprising a vehicle frame (100) and a battery pack (200); The vehicle frame (100) is provided with a first guide portion (110), and the battery pack (200) is provided with a second guide portion (210) matching the first guide portion (110); The first guide portion (110) is configured to guide the second guide portion (210) when the battery pack (200) approaches the vehicle frame (100) from bottom to top, so that the battery pack (200) abuts against a predetermined position on the vehicle frame (100); The battery pack (200) is provided with a manual maintenance switch (230) and / or an explosion-proof valve (240), and the manual maintenance switch (230) and / or the explosion-proof valve (240) are arranged on a side away from the vehicle frame (100).

2. The chassis structure according to claim 1, characterized in that: One of the first guide portion (110) and the second guide portion (210) is a guide hole, and the other is a guide pin matching the guide hole.

3. The chassis structure according to claim 2, characterized in that: The guide pin comprises a guide section (211) and a positioning section (212) connected to one end of the guide section (211), and the cross-section of the guide section (211) gradually decreases in a direction away from the positioning section (212); The positioning section (212) is used to be connected to the battery pack (200) or the vehicle frame (100); when the battery pack (200) is located at the predetermined position, the positioning section (212) is inserted into the guide hole.

4. The chassis structure according to claim 3, characterized in that: The second guide portion (210) is the guide pin, and the guide section (211) is vertically upward; The number of the second guide portions (210) is at least two, and the two second guide portions (210) are arranged on opposite sides of the battery pack (200).

5. The chassis structure according to claim 1, characterized in that: The battery pack (200) has a plurality of hanging portions (220), and each hanging portion (220) is arranged on a side away from the vehicle frame (100).

6. The chassis structure according to any one of claims 1 to 5, characterized in that: The vehicle frame (100) comprises two longitudinal beams (101) and a plurality of cross beams (102), wherein the two longitudinal beams (101) are spaced apart, and the plurality of cross beams (102) are spaced apart along the extension direction of the longitudinal beams (101) and are respectively connected to the two longitudinal beams (101), and the first guide portion (110) is located on one side of the longitudinal beam (101).

7. The chassis structure according to claim 6, characterized in that: The battery pack (200) has two mounting slots (250), each longitudinal beam (101) is correspondingly embedded in each mounting slot (250), and the upper surface of the battery pack (200) is not higher than the upper surface of the longitudinal beam (101).

8. The chassis structure according to claim 6, characterized in that: The battery pack (200) has a plurality of connectors (260) in the middle portion thereof, and the crossbeam (102) is provided with threading holes (1021) arranged along the extension direction of the longitudinal beam (101). The threading holes (1021) are used for the wiring harness or pipeline of the vehicle to pass through and then be connected to the connectors (260).

9. A vehicle, characterized in that: The vehicle comprises a vehicle body, on which the chassis structure according to any one of claims 1 to 8 is provided.

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