Automobile threshold assembly

Abstract

The utility model discloses an automobile doorsill assembly which comprises a doorsill beam provided with a containing cavity extending in the length direction of an automobile. The cooling water pipe is arranged in the accommodating cavity in a penetrating manner; the automobile inner plate is fixedly connected to the doorsill beam, a buffer cavity is formed between the automobile inner plate and the front end of the doorsill beam, and the cooling water pipe extends forwards from the buffer cavity and then penetrates through the automobile inner plate; stable installation of the cooling water pipe can be guaranteed, and meanwhile the small offset collision capacity of an automobile can be improved; specifically, the buffer cavity formed by the automobile inner plate and the front end of the threshold beam can play a good role in deformation and energy absorption when the automobile is subjected to small offset collision, and the small offset collision capacity of the automobile is improved; the containing cavity is formed in the threshold beam, the cooling water pipe is arranged in the containing cavity, and the front end of the cooling water pipe penetrates through the automobile inner plate, so that the cooling water pipe is connected with the automobile rear driving motor and the forecabin radiator, and stable arrangement and installation of the cooling water pipe can be guaranteed.

Description

Technical Field

[0001] The utility model relates to automobile structural design, in particular to an automobile door sill assembly. Background Art

[0002] The drive motor assembly, charger, DCDC, etc. of new energy electric vehicles are generally arranged on the rear subframe, and the cooling water pipe needs to be connected to the rear of the car by the front low-temperature radiator to exchange and dissipate heat for the motor or electronic control equipment. With the development of new energy vehicles, customers have higher and higher requirements for the cruising range of new energy models. In order to solve the mileage anxiety problem of pure electric vehicle users, the battery pack power requirements are getting higher and higher. As the battery pack power increases, the demand for layout space is also increasing. In order to avoid squeezing the installation space of the battery pack, the existing technology usually adopts the method of arranging the cooling water pipe in the door sill beam of the car to improve the space utilization. However, in the existing water pipe through-beam structure, the cooling water pipe is usually directly set in the door sill beam that runs through the front and back, and the improvement of the small offset collision capability of the car is not well considered, and the collision performance requirements of the CTB (body battery integration) structure cannot be well met. Therefore, it is necessary to provide a new door sill assembly structure, which is expected to ensure the stable installation of the cooling water pipe and at the same time help to improve the small offset collision capability of the car. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an automobile door sill assembly, which can ensure the stable installation of the cooling water pipe and at the same time help to improve the small offset collision capability of the automobile.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle door sill assembly, comprising: a door sill beam, having a receiving cavity extending along the length direction of the vehicle; a cooling water pipe, which is inserted into the receiving cavity; an inner panel, which is fixedly connected to the door sill beam, and a buffer cavity is formed between the inner panel and the front end of the door sill beam, and the cooling water pipe extends forward from the buffer cavity and then passes through the inner panel.

[0005] Furthermore, the vehicle interior panel is an A-pillar lower guard plate, the lower portion of which is overlapped and fixed to the front end of the sill beam, and the A-pillar lower guard plate has a folded portion folded toward the front end surface of the sill beam, and the folded portion is provided with a water pipe through hole for the cooling water pipe to pass through.

[0006] Furthermore, a section of the cooling water pipe corresponding to the water pipe through-hole portion is a corrugated pipe.

[0007] Furthermore, a rubber sealing pad is clamped in the water pipe through hole.

[0008] Furthermore, a pipe clamp for fixing a cooling water pipe is fixedly connected to the outer side surface of the folded portion.

[0009] Furthermore, the accommodating cavity is located in the middle of the sill beam along the transverse direction of the vehicle body, and reinforcement cavities are respectively provided on both sides of the accommodating cavity in the transverse direction.

[0010] Furthermore, the door sill beam is an aluminum alloy profile.

[0011] Furthermore, a plurality of vibration isolation sleeves are arranged at intervals in the accommodating cavity and are externally mounted on the cooling water pipe.

[0012] Furthermore, a heat insulating sleeve is provided on the fixed outer jacket of the cooling water pipe.

[0013] Furthermore, anti-slip teeth are arranged on the inner diameter surface of the vibration isolation sleeve, and the vibration isolation sleeve is a structure with small ends and a large middle.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the automobile door sill assembly structure provided by the utility model, the stable installation of the cooling water pipe can be ensured, and at the same time, the small offset collision capability of the automobile can be improved; specifically, the buffer cavity formed by the inner panel and the front end of the door sill beam can play a good deformation and energy absorption role in the event of a small offset collision of the automobile, thereby reducing the overall deformation of the A-pillar and other vehicle body structures to a certain extent, reducing damage to the passenger compartment, and improving the small offset collision capability of the automobile; by providing an accommodating cavity in the door sill beam, arranging the cooling water pipe in the accommodating cavity, and the front end of the cooling water pipe is arranged through the inner panel, which is conducive to the connection between the cooling water pipe and the rear drive motor of the automobile and the front cabin radiator, and the stable arrangement and installation of the cooling water pipe can be ensured; of course, the cooling water pipe with an integrated design in the door sill assembly structure improves space utilization, frees up space for battery pack arrangement, and is particularly suitable for CTB models.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the axonometric structure of the utility model

[0018] Figure 2 for Figure 1 A partial enlarged view of the center

[0019] Figure 3 Schematic diagram of the explosion structure of this utility model

[0020] Figure 4 Left view of the door sill beam and cooling water pipe

[0021] Figure 5 Schematic diagram of the explosion structure of the cooling water pipe part

[0022] Figure 6 Axonometric structural diagram of the vibration isolation sleeve

[0023] Figure numerals: 1-sill beam; 1a-buffer cavity; 101-accommodating cavity; 102-reinforcement cavity; 2-cooling water pipe; 3-inner panel; 301-folding part; 301a-water pipe through hole; 302-rubber sealing pad; 303-pipe clamp; 4-vibration isolation sleeve; 401-anti-slip teeth; 5-thermal insulation sleeve. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0025] See also Figure 1-3 , the present embodiment discloses a vehicle threshold assembly, comprising: a threshold beam 1, having a receiving cavity 101 extending along the length direction of the vehicle; a cooling water pipe 2, which is inserted into the receiving cavity 101, where "inserted" means that the cooling water pipe 2 passes through the receiving cavity 101, and the cooling water pipe 2 refers to a cooling water pipe for providing coolant for the drive motor assembly; an inner panel 3, wherein the inner panel 3 is fixedly connected to the threshold beam 1, and a buffer cavity 1a is formed between the inner panel 3 and the front end of the threshold beam 1, and the cooling water pipe 2 extends forward from the buffer cavity 1a and then passes through the inner panel 3, where the inner panel 3 can be a side inner panel, an A-pillar guard plate, etc., or a separately arranged reinforcing plate, and the "front end" refers to the front in the front-rear direction of the vehicle, and the fixing method of the inner panel 3 and the threshold beam 1 is not limited, and the inner panel 3 is usually a sheet metal part, and screws are preferably used here to complete the fixed connection between the inner panel 3 and the threshold beam 1;

[0026] In the above structural design, the stable installation of the cooling water pipe 2 can be guaranteed, and at the same time, it is beneficial to improve the small offset collision capability of the automobile; specifically, the buffer cavity formed by the inner panel 3 and the front end of the door sill beam 1 can play a good deformation and energy absorption role in the event of a small offset collision of the automobile, thereby reducing the deformation of the entire body structure such as the A-pillar to a certain extent, reducing the damage to the passenger compartment, and improving the small offset collision capability of the automobile; by providing a receiving cavity 101 in the door sill beam 1, arranging the cooling water pipe 2 in the receiving cavity 101, and setting the front end of the cooling water pipe 2 through the inner panel 3, it is beneficial to realize the connection between the cooling water pipe 2 and the rear drive motor of the automobile and the front cabin radiator, such as the front end of the cooling water pipe 2 can be connected to the front low-temperature radiator through an external pipeline, and the rear end of the cooling water pipe 2 can be connected to the drive motor through an external pipeline, which can ensure the stable arrangement and installation of the cooling water pipe 2; of course, the cooling water pipe 2 integrated in the door sill assembly structure improves the space utilization rate and frees up space for the battery pack arrangement, which is particularly suitable for CTB models.

[0027] In this embodiment, the inner panel 3 is an A-pillar lower guard plate, the lower portion of which is overlapped and fixed to the front end of the door sill beam 1, and the A-pillar lower guard plate has a folding portion 301 folded toward the front end of the door sill beam 1, and the folding portion 301 is provided with a water pipe through hole 301a for the cooling water pipe 2 to pass through; specifically, the A-pillar lower guard plate is fixedly connected to the door sill beam 1 by screws, and the folding portion 301 is connected to the A-pillar lower guard plate; in this structural design, the A-pillar lower guard plate and the door sill beam are directly used. 1 forms a buffer cavity 1a, which is conducive to simplifying the structure and saving the number of parts. At the same time, it is also conducive to improving the structural strength of the A-pillar lower guard plate. The water pipe through hole 301a is arranged to facilitate the installation of the cooling water pipe 2; it can be understood that the A-pillar lower guard plate usually includes a lower guard plate inner plate and a lower guard plate outer plate. The lower guard plate inner plate and the lower guard plate outer plate can be buckled together to form an A-pillar structure with a cavity structure. The accompanying drawings only show the A-pillar lower guard plate inner plate, and the water pipe through hole 301a is arranged on the A-pillar lower guard plate inner plate.

[0028] In this embodiment, a section of the cooling water pipe 2 corresponding to the water pipe through hole 301a is a corrugated pipe; by designing this section of the cooling water pipe 2 as a corrugated pipe structure, it is convenient to adjust the angle and position of the cooling water pipe 2 after passing through the water pipe through hole 301a, and it is convenient to connect and install with external pipelines, reduce precision requirements, and thus reduce costs.

[0029] In this embodiment, a rubber sealing gasket 302 is clamped in the water pipe hole 301a. The rubber sealing gasket 302 is designed to effectively block the water pipe hole 301a and the corrugated pipe section of the cooling water pipe 2, and prevent foreign matter from entering the threshold beam 1 and causing abnormal noise; at the same time, it is also beneficial to reduce the abnormal noise at the connection between the water pipe hole 301a and the cooling water pipe 2.

[0030] In this embodiment, a pipe clamp 303 for fixing the cooling water pipe 2 is fixedly connected to the outer side of the folded portion 101. Specifically, the pipe clamp 303 is fixedly installed on the folded portion 101 by screws, and the "outer side" is relative to the outside of the buffer cavity 1a. By setting the pipe clamp 303, the cooling water pipe 2 can limit the position of the cooling water pipe 2 passing through the cooling water pipe 2, which is beneficial to further improve the installation stability of the cooling water pipe 2 and prevent the cooling water pipe 2 from shaking.

[0031] In this embodiment, the accommodating cavity 101 is located in the middle of the rocker beam 1 along the transverse direction of the vehicle body, and reinforcement cavities 102 are respectively provided on both sides of the accommodating cavity 101 in the transverse direction; by arranging the accommodating cavity 101 in the middle of the transverse direction, it is beneficial to improve the side collision prevention capability, reduce the influence of the deformation of the rocker beam on the cooling water pipe 2, and prevent the cooling water pipe 2 from deformation and failure.

[0032] In this embodiment, the door sill beam 1 is an aluminum alloy profile with good structural strength, which is conducive to the lightweight design of the entire vehicle.

[0033] In this embodiment, the accommodating cavity 101 is provided with a plurality of vibration isolation sleeves 4 which are arranged at intervals and are externally mounted on the cooling water pipe 2. Here, the vibration isolation sleeves 4 are preferably rubber sleeves. By providing the vibration isolation sleeves 4, abnormal noise caused by the up and down swinging of the cooling water pipe 2 during operation can be prevented. At the same time, the interval arrangement is conducive to simplifying installation and saving materials.

[0034] In this embodiment, a heat insulating sleeve 5 is provided on the fixed outer sleeve of the cooling water pipe 2. Here, the heat insulating sleeve 5 is preferably a rubber sleeve. The length of the heat insulating sleeve 5 is slightly smaller than the length of the accommodating cavity. By providing the heat insulating sleeve 5, the heat exchange between the cooling water pipe 2 and the threshold beam 1 can be reduced, thereby improving the cooling effect.

[0035] In the present embodiment, anti-slip teeth 401 are provided on the inner diameter surface of the vibration isolation sleeve 4, and the vibration isolation sleeve 4 is a structure with small ends and large middle; specifically, the anti-slip teeth 401 here are flower-shaped teeth and are provided at both ends of the vibration isolation sleeve 4. The vibration isolation sleeve 4 is installed on the cooling water pipe 2 by interference fit. During use, it can be strengthened by glue dot and passed into the accommodating cavity 101 together with the cooling water pipe 2; in this structural design, the anti-slip teeth 401 are designed to prevent the vibration isolation sleeve 4 from slipping and stacking during the insertion process, and ensure that the vibration isolation sleeve 4 is arranged at set position intervals; at the same time, the structure of the vibration isolation sleeve 4 with small ends and large middle is conducive to reducing the friction between the vibration isolation sleeve 4 and the inner wall of the accommodating cavity 101, thereby preventing the vibration isolation sleeve 4 from slipping and stacking during the insertion process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An automobile door sill assembly, characterized in that: include: A door sill beam (1) having a receiving cavity (101) extending along the length direction of the automobile; A cooling water pipe (2) is inserted into the accommodating cavity (101); The vehicle interior panel (3) is fixedly connected to the door sill beam (1), and a buffer cavity (1a) is formed between the vehicle interior panel (3) and the front end of the door sill beam (1), and the cooling water pipe (2) extends forward from the buffer cavity (1a) and then passes through the vehicle interior panel (3).

2. The automobile door sill assembly according to claim 1, characterized in that: The vehicle interior panel (3) is an A-pillar lower guard plate, the lower portion of which is overlapped and fixed to the front end of the door sill beam (1), and the A-pillar lower guard plate has a folded portion (301) folded toward the front end surface of the door sill beam (1), and the folded portion (301) is provided with a water pipe through hole (301a) for the cooling water pipe (2) to pass through.

3. The automobile door sill assembly according to claim 2, characterized in that: A section of the cooling water pipe (2) corresponding to the water pipe through hole (301a) is a corrugated pipe.

4. The automobile door sill assembly according to claim 3, characterized in that: A rubber sealing pad (302) is clamped inside the water pipe through hole (301a).

5. The automobile door sill assembly according to claim 3, characterized in that: A pipe clamp (303) for fixing the cooling water pipe (2) is fixedly connected to the outer side surface of the folded portion (301).

6. The automobile door sill assembly according to claim 1, characterized in that: The accommodating cavity (101) is located in the middle of the sill beam (1) in the transverse direction of the vehicle body, and reinforcement cavities (102) are respectively provided on both transverse sides of the accommodating cavity (101).

7. The automobile door sill assembly according to claim 6, characterized in that: The threshold beam (1) is an aluminum alloy profile.

8. The automobile door sill assembly according to claim 1, characterized in that: A plurality of vibration isolation sleeves (4) are arranged in intervals and are disposed on the cooling water pipe (2) in the accommodating cavity (101).

9. The automobile door sill assembly according to claim 8, characterized in that: A heat insulating sleeve (5) is provided on the fixed outer jacket of the cooling water pipe (2).

10. The automobile door sill assembly according to claim 8, characterized in that: Anti-slip teeth (401) are provided on the inner diameter surface of the vibration isolation sleeve (4), and the vibration isolation sleeve (4) is a structure with small ends and a large middle.

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