Threshold beam, vehicle body and vehicle

By integrating the cooling pipes into the sill beam and connecting them to its inner wall, the problems of space occupation and installation difficulties caused by the cooling pipes are solved, achieving space optimization and simplified installation.

CN223982567UActive Publication Date: 2026-03-10ZHAOQING XIAOPENG NEW ENERGY INVESTMENT CO LTD GUANGZHOU BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In existing vehicle designs, cooling pipes encroach on the space around the door sill beam and are difficult to install, while the hollow space inside the door sill beam is not utilized.

Method used

The cooling pipes are integrated into the sill beam and connected to the inner wall of the sill beam body via connectors, simplifying the installation process.

Benefits of technology

The space around the door sill beam has been optimized to avoid the cooling pipes taking up space and to simplify the installation process of the cooling pipes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicles, and discloses a doorsill beam, a vehicle body and a vehicle, the doorsill beam comprises a doorsill beam main body, the doorsill beam main body is of a hollow structure, a cooling pipeline extending in the length direction of the doorsill beam main body is arranged in the doorsill beam main body, and the cooling pipeline is connected with the inner wall of the doorsill beam main body through a connecting piece; and the cooling pipeline is used for circularly communicating with a cooling system of the vehicle. According to the doorsill beam, the cooling pipeline is arranged in the doorsill beam body and connected with the inner wall of the doorsill beam body through the connecting piece, so that the cooling pipeline is integrated in the doorsill beam, the space around the doorsill beam cannot be occupied by the cooling pipeline, and the space arrangement around the doorsill beam is optimized. Meanwhile, the cooling pipeline can be installed only through the connecting piece, and the installation process is simple.
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Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a door sill beam, a vehicle body, and a vehicle. Background Technology

[0002] Coolant, as the primary cooling medium in automobiles, is connected to various heat dissipation modules (such as the motor, battery pack, and electronic control modules) via separate pipelines. In existing vehicle designs, cooling pipes are installed around the door sill beams. This not only encroaches on the space around the door sill beams, affecting the interior space of the vehicle, but also makes the installation of the cooling pipes cumbersome.

[0003] On the other hand, the interior of the threshold beam is hollow, and the hollow space is not utilized. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a door sill beam, a vehicle body, and a vehicle in which cooling pipes are integrated into the door sill beam, optimizing the space around the door sill beam and simplifying the installation of the cooling pipes.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] A door sill beam includes a hollow body with cooling pipes extending along its length inside. These cooling pipes are connected to the inner wall of the door sill beam body via connectors and are used for circulating communication with the vehicle's cooling system. This design integrates the cooling pipes within the door sill beam, preventing them from encroaching on the surrounding space and optimizing the space allocation. Furthermore, the installation of the cooling pipes is simple, requiring only the connectors.

[0007] In some embodiments, the connector extends along the length of the cooling pipe, with one side of the connector connected to the inner wall of the sill beam body and the other side connected to the outer wall of the cooling pipe. A specific structure of the connector ensures the connection strength between the cooling pipe and the sill beam body.

[0008] In some embodiments, the cooling pipe has pipe fittings at both ends along its length, the other end of which is used to connect to the vehicle's cooling system, and the pipe fitting is connected to the connector. The pipe fittings facilitate the connection of the cooling pipe to the vehicle's cooling system piping.

[0009] In some embodiments, the outer wall of the pipe joint is provided with a connecting lug, and the connecting lug is provided with a first connecting hole;

[0010] The connector includes a rod, one side of which is connected to the inner wall of the sill beam body, and the other side of which is connected to the outer wall of the cooling pipe; the rod is provided with a seat, and the seat is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected by a locking member.

[0011] By installing connecting lugs on the pipe fittings, the connection stability between the pipe fittings and the connecting parts is ensured.

[0012] In some embodiments, the pipe connector includes a main body, with a first connecting portion and a second connecting portion at its two ends along its length. The first connecting portion is inserted into the cooling pipe, and the second connecting portion is used to connect to the vehicle's cooling system. A connecting lug is disposed adjacent to the first connecting portion on the outer wall of the main body. The specific structure of the pipe connector ensures the connection stability between the connecting lug and the connector, while also facilitating the connection of the pipe connector to the cooling pipe and the vehicle's cooling system.

[0013] In some embodiments, the rod is flat and has a thickness of h; the cross-sections of the base and the cooling pipe are both circular, with the outer diameter of the base being D1 and the outer diameter of the cooling pipe being D2; the maximum width of the sill beam body is b, then the following conditions are met:

[0014] h = (0.25~0.3)D1;

[0015] D1 = (0.3 ~ 0.4)D2;

[0016] D2 = (0.4 ~ 0.5)b.

[0017] The specific dimensions of the rod, base, and cooling pipes ensure both the strength of the connectors themselves and the stability of the connection between the cooling pipes and the sill beam.

[0018] In some embodiments, the inner wall of the sill beam body includes a left inner sidewall and a right inner sidewall arranged opposite to each other. Two connectors are arranged opposite to each other, connecting the left inner sidewall and the right inner sidewall respectively. The cooling pipe is disposed between the two connectors. The preferred number and connection method of the connectors reduce the width of the connectors, thereby reducing raw materials and lowering costs.

[0019] In some embodiments, the outer wall of the sill beam body is provided with a reinforcing structure to enhance the strength of the sill beam.

[0020] A vehicle body, including the aforementioned door sill beam.

[0021] A vehicle comprising the aforementioned body.

[0022] The sill beam, body, and vehicle of this application embodiment offer the following advantages compared to existing technologies: By placing the cooling pipes inside the sill beam body and connecting them to the inner wall of the sill beam body via connectors, the cooling pipes are integrated within the sill beam, preventing them from encroaching on the surrounding space and optimizing the space arrangement around the sill beam. Furthermore, the installation of the cooling pipes is simple, requiring only connectors. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the threshold beam in this application.

[0024] Figure 2 This is a schematic diagram of the connection between the threshold beam and the pipe joint in this application.

[0025] Figure 3 for Figure 2 Exploded view.

[0026] Wherein: 1-Sill beam main body, 11-Left inner side wall, 12-Right inner side wall, 13-Upper inner side wall, 14-Lower inner side wall, 2-Cooling pipe, 3-Connector, 31-Rod body, 32-Seat body, 33-Second connecting hole, 4-Pipe joint, 41-Main body, 42-First connecting part, 43-Second connecting part, 5-Connecting ear, 51-First connecting hole, 6-Reinforcing structure, 7-Screw. Detailed Implementation

[0027] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In the following description of this application, the length direction is the same as the length direction of the vehicle, and left and right refer to the left and right directions of the vehicle body.

[0030] like Figure 1As shown, a preferred embodiment of the present application provides a door sill beam, including a door sill beam body 1. The door sill beam body 1 is a hollow structure. A cooling pipe 2 extending along its length is provided inside the door sill beam body 1. The cooling pipe 2 is connected to the inner wall of the door sill beam body 1 through a connector. The cooling pipe 2 is used to circulate with the vehicle's cooling system to form a closed coolant channel.

[0031] Based on the above features, the sill beam integrates the cooling pipe 2 within the sill beam body 1 by placing the cooling pipe 2 inside the body 1 and connecting it to the inner wall of the body 1 via a connector. This ensures that the cooling pipe 2 does not encroach on the space around the sill beam, optimizing the space arrangement around the sill beam. Furthermore, the installation of the cooling pipe 2 is simple, requiring only the connector.

[0032] In this embodiment, the connector is a rod-shaped component extending along the length of the cooling pipe 2. One side of the connector 3 is connected to the inner wall of the sill beam body 1, and the other side is connected to the outer wall of the cooling pipe 2. The connection method between the connector 3 and the sill beam body 1 and the cooling pipe 2 can be selected according to different materials, such as welding or snap-fitting. However, preferably, the sill beam body 1, the connector 3, and the cooling pipe 2 are integrally extruded, which not only facilitates processing and provides high strength, ensuring the performance of the cooling pipe 2, but also eliminates the need for additional installation of the cooling pipe 2, further simplifying the overall installation process. Simultaneously, since the connector 3 extends along the length of the cooling pipe 2, i.e., has the same length as the cooling pipe 2, the connection strength between the cooling pipe 2 and the sill beam body 1 is guaranteed.

[0033] like Figure 2 , 3 As shown, in practical applications, the cooling pipe 2 also needs to be connected to the vehicle's cooling system piping to form a closed coolant passage in the vehicle. For ease of connection, the cooling pipe 2 has pipe connectors 4 at both ends along its length. The other end of each pipe connector 4 is used to connect to the corresponding piping of the vehicle's cooling system. Simultaneously, to ensure the stability of the pipe connectors 4 and prevent them from detaching during vehicle operation, the pipe connectors 4 are connected to the connector 3. Specifically, the outer wall of the pipe connector 4 has a connecting lug 5, and the connecting lug 5 has a first connecting hole 51. The connector 3 includes a rod 31, one side of which is connected to the inner wall of the sill beam body 1, and the other side of which is connected to the outer wall of the cooling pipe 2. The rod 31 has a seat 32, and the seat 32 has a second connecting hole 33. The first connecting hole 51 and the second connecting hole 33 are connected by a locking element such as a screw 7.

[0034] Since the main function of the seat 32 is to provide the second connecting hole 33, the seat 32 only needs to be longer than the depth of the second connecting hole 33. However, in actual production, considering the overall structural strength and processing convenience of the connector 3, the seat 32 and the rod 31 can be integrally extruded to form a single unit with the sill beam body 1, thus ensuring the overall strength of the sill beam structure. Furthermore, based on the integral extrusion molding of the sill beam body 1, the seat 32, and the rod 31, the length of the seat 32 can be the same as the length of the rod 31 for ease of processing. Additionally, to ensure the connection strength between the connecting ear 5 and the seat 32, the connecting ear 5 should preferably abut against the seat 32. In a specific configuration, the pipe connector 4 includes a main body 41, with a first connecting part 42 and a second connecting part 43 at its two ends along its length. The first connecting part 42 is inserted into the cooling pipe 2 with an interference fit, and the second connecting part 43 is used to connect to the vehicle's cooling system. The connecting ear 5 is disposed adjacent to the first connecting part 42 on the outer wall of the main body 41. That is, when the first connecting part 42 is fully inserted into the cooling pipe 2, the connecting ear 5 abuts against the end face of the seat 32, and then the first connecting hole 51 and the second connecting hole 33 are connected by screws 7, thereby ensuring the connection stability between the pipe connector 4 and the cooling pipe 2.

[0035] In addition, since the base 32 needs to be provided with the second connecting hole 33, its height in the height direction will be greater than that of the rod 31 in the height direction. This makes the base 32 equivalent to providing a reinforcing rib structure for the rod 31, which can further improve the overall strength of the connector 3.

[0036] Specifically, the rod 31 is flat and has a thickness of h, where h refers to the dimension of the rod 31 along the vertical direction of the vehicle body; the cross-sections of the seat 32 and the cooling pipe 2 are both circular, with the outer diameter of the seat 32 being D1 and the outer diameter of the cooling pipe 2 being D2; the maximum width of the sill beam body 1 is b, where b refers to the maximum dimension of the sill beam body 1 along the horizontal direction of the vehicle body, thus satisfying:

[0037] h = (0.25~0.3)D1, such as h = 0.26D1, h = 0.27D1, h = 0.28D1, h = 0.29D1

[0038] wait;

[0039] D1 = (0.3~0.4)D2, such as D1 = 0.31D2, D1 = 0.32D2, D1 = 0.33D2, D1 = 0.34D2, etc.

[0040] D1 = 0.35D2, D1 = 0.36D2, D1 = 0.37D2, D1 = 0.38D2, ​​D1 = 0.39D2, etc.;

[0041] D² = (0.4~0.5)b, such as D² = 0.41b, D² = 0.42b, D² = 0.43b, D² = 0.44b,

[0042] D2=0.45b, D2=0.46b, D2=0.47b, D2=0.48b, D2=0.49b, etc.

[0043] In the specific setup, the dimensions of the sill beam body 1 for each model are determined first, and then h, D1, and D2 are set according to the dimension b.

[0044] In this embodiment, the number of connectors can be one or more, but preferably two are arranged opposite each other. Specifically, the inner wall of the sill beam body 1 includes a left inner sidewall 11 and a right inner sidewall 12 arranged opposite each other. The upper ends of the left inner sidewall 11 and the right inner sidewall 12 are connected to an upper inner sidewall 13, and the lower ends of the left inner sidewall 11 and the right inner sidewall 12 are connected to a lower inner sidewall 14. The two connectors are respectively connected to the left inner sidewall 11 and the right inner sidewall 12, and the cooling pipe 2 is disposed between the two connectors. Generally, the cross-section of the sill beam body 1 is rectangular or quasi-rectangular, and the height direction is greater than its width direction. Therefore, the two connectors in this application are respectively connected to the left inner sidewall 11 and the right inner sidewall 12, that is, connected in the width direction of the sill beam body 1. Compared with connecting in the height direction of the sill beam body 1, the width dimension of the connector 3 can be reduced, thereby reducing raw materials and lowering costs.

[0045] Correspondingly, there are also two connecting ears 5. The two connecting ears 5 can be set as one piece with a connecting hole in the middle. The connecting hole connects to the main body 41 of the pipe connector 4, thereby ensuring the overall strength of the connecting ears 5 and the connection stability between the connecting ears 5 and the seat 32.

[0046] In some embodiments, it is necessary to strengthen the sill beam body 1. A strengthening structure 6 can be provided on the outer wall of the sill beam body 1. The specific strengthening structure 6 can be set according to the specific needs of the vehicle model, and is not limited here.

[0047] To address the aforementioned technical problems, this application also provides a vehicle, which includes a body structure and the aforementioned sill beam. Based on this vehicle, the cooling pipe 2 can be integrated within the sill beam, ensuring that the cooling pipe does not encroach on the space surrounding the sill beam and optimizing the space arrangement around the sill beam.

[0048] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A rocker rail characterized by: The threshold beam body is a hollow structure, and an inside of the threshold beam body is provided with a cooling pipeline extending along a length direction of the threshold beam body, and the cooling pipeline is connected with an inner wall of the threshold beam body through a connecting piece, and the cooling pipeline is used for circulating communication with a cooling system of a vehicle. The cooling pipeline is provided with a pipeline joint at both ends along the length direction of the cooling pipeline, and the pipeline joint is used for connecting the cooling system of the vehicle, and the pipeline joint is connected with the connecting piece.

2. The rocker rail of claim 1, wherein: The connecting piece extends along the length direction of the cooling pipeline, and one side of the connecting piece is connected with the inner wall of the threshold beam body, and the other side of the connecting piece is connected with an outer wall of the cooling pipeline.

3. The rocker rail of claim 1, wherein: The outer wall of the pipeline joint is provided with a connecting lug, and the connecting lug is provided with a first connecting hole. The connecting piece comprises a rod body, one side of the rod body is connected with the inner wall of the threshold beam body, and the other side of the rod body is connected with the outer wall of the cooling pipeline, the rod body is provided with a seat body, the seat body is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected through a locking piece.

4. The rocker rail of claim 3, wherein: The pipeline joint comprises a main body part, both ends of the main body part along the length direction are respectively a first connecting part and a second connecting part, the first connecting part is inserted into the cooling pipeline, the second connecting part is used for connecting the cooling system of the vehicle, and the connecting lug is arranged on an outer wall of the main body part close to the first connecting part.

5. The rocker rail of claim 3, wherein: The rod body is flat, and a thickness is h; the seat body and the cooling pipeline are circular in cross section, an outer diameter of the seat body is D1, and an outer diameter of the cooling pipeline is D2; a maximum width of the threshold beam body is b, and the following conditions are met: h=(0.25~0.3)D1; D1=(0.3~0.4)D2; D2=(0.4~0.5)b.

6. The rocker panel of any one of claims 1-5, wherein: The inner wall of the threshold beam body comprises oppositely arranged left and right inner side walls, the connecting pieces are oppositely arranged and connected with the left and right inner side walls respectively, and the cooling pipeline is arranged between the two connecting pieces.

7. The rocker panel of any one of claims 1-5, wherein: The outer wall of the threshold beam body is provided with a reinforcing structure.

8. A vehicle body, characterized by: The threshold beam comprises any one of claims 1-7.

9. A vehicle characterized by: The vehicle body comprises claim 8.