A door sill beam assembly and a car frame

Abstract

This utility model relates to the field of automotive protection technology and proposes a sill beam assembly and an automotive frame. The sill beam assembly includes: a vehicle body; a sill beam disposed at the bottom of the door frame of the vehicle body, the sill beam having an energy-absorbing space; and a collision extension mechanism having an extended energy-absorbing part disposed within the energy-absorbing space of the sill beam. When the vehicle body collides with another vehicle, the extended energy-absorbing part extends into the energy-absorbing space along the vehicle's forward direction to absorb the collision energy. When a collision occurs while the vehicle body is moving forward, the collision extension mechanism within the energy-absorbing space can extend the energy-absorbing part into the energy-absorbing space, allowing the energy-absorbing part to come into contact with the energy generated by the collision in advance. This pre-emptively handles the energy of the obstacle collision before the collision energy is transmitted to the sill beam.

Description

Technical Field

[0001] This utility model relates to the field of automotive protection technology, and in particular to a door sill beam assembly and an automotive frame. Background Technology

[0002] The door sill beam is an important component of the car body structure. It is installed below the door frame of the front and rear doors, in the transition area where the door connects to the body. Specifically, it extends laterally along the bottom side of the vehicle, connecting the lower frame of the front and rear doors, and is a part that passengers easily touch when getting in and out of the vehicle. This design allows it to serve both as structural support for the side of the vehicle body and as a protective feature during daily use.

[0003] According to the disclosure of a new energy vehicle door sill beam structure under publication number CN 216140081 U, a technical solution of setting an energy absorption mechanism inside the door sill beam is disclosed. However, this result can only enhance the energy absorption effect of the door sill beam itself. It cannot provide a reverse thrust to the obstacle when the front of the car body collides, thus reducing the energy absorption of the door sill beam and keeping the vehicle away from the obstacle.

[0004] Therefore, a door sill beam assembly and a car frame are proposed, which can provide a reverse thrust to the obstacle when the vehicle collides, thereby improving the energy absorption effect of the door sill beam. Utility Model Content

[0005] In view of this, the present invention proposes a door sill beam assembly and a car frame, which can provide a reverse thrust to the obstacle when the vehicle collides, thereby improving the energy absorption effect of the door sill beam.

[0006] This utility model proposes a door sill beam assembly, comprising:

[0007] Body;

[0008] A door sill beam is provided at the bottom of the door frame of the vehicle body, and the door sill beam has an energy-absorbing space;

[0009] A collision extension mechanism has an extension energy-absorbing part disposed within the energy-absorbing space of the sill beam. When the vehicle body collides, the extension energy-absorbing part extends into the energy-absorbing space along the vehicle's forward direction and absorbs the collision energy.

[0010] Based on the above technical solution, preferably, the collision extension mechanism includes:

[0011] A collision detection unit is disposed at the front end of the vehicle body along the direction of vehicle travel, and is used to detect whether the vehicle body has been involved in a collision.

[0012] The drive unit is located in the energy absorption space of the sill beam and is electrically connected to the collision detection unit to activate when the vehicle body collides.

[0013] An energy-absorbing unit is disposed at the output end of the drive unit and is used to extend the energy-absorbing space when the vehicle body is involved in a collision. The energy-absorbing unit serves as the extended energy-absorbing part.

[0014] Based on the above technical solution, preferably, the energy-absorbing unit is hollow inside and has several energy-absorbing cavities, which are arranged side by side in sequence.

[0015] Based on the above technical solution, preferably, the axial direction of the plurality of energy-absorbing cavities is parallel to the direction of vehicle movement.

[0016] Based on the above technical solution, preferably, the driving unit is configured as an electromagnetic linear driving unit.

[0017] Based on the above technical solution, preferably, the driving unit is configured as a gas generating unit and an inflatable airbag, and the gas generating unit and the inflatable airbag are located at the end of the energy absorbing unit away from the opening of the energy absorbing space.

[0018] Based on the above technical solution, preferably, the collision extension mechanism further includes a housing, which is disposed within the energy absorption space of the sill beam. The housing is configured as a cavity with one end open and the other end closed. The inflatable airbag and the energy absorption unit are sequentially disposed within the cavity, wherein the energy absorption unit is located near the open end, and the gas generating unit is disposed within the inflatable airbag.

[0019] Based on the above technical solution, preferably, the threshold beam is provided with an energy-absorbing frame in the energy-absorbing space, and one end of the energy-absorbing frame abuts against the closed end of the shell.

[0020] On the other hand, this application also provides an automobile frame, including the aforementioned sill beam assembly and body, wherein the sill beam assembly is disposed at the bottom of the door frame of the body.

[0021] The door sill beam assembly and automobile frame provided by this utility model have the following advantages compared with the prior art:

[0022] (1) When the vehicle body collides while moving forward, the collision extension mechanism in the energy absorption space can extend the energy absorption part out of the energy absorption space, so that the energy absorption part comes into contact with the energy generated by the collision in advance. Before the collision energy is transferred to the door sill beam, the energy of the obstacle collision can be pre-processed.

[0023] (2) A collision detection unit is installed at the front of the vehicle body. The vehicle body status is detected by sensors. When the vehicle body collides, the energy absorption unit is immediately pushed out of the energy absorption space by the drive unit, so that the energy absorption unit can absorb the energy generated by the collision between the front of the vehicle body and the obstacle.

[0024] (3) The energy-absorbing frame can also absorb collision energy, which can enhance the energy absorption effect of the sill beam and ensure the anti-collision performance of the sill beam. When the vehicle is involved in a collision, the energy-absorbing frame can absorb part of the collision energy, effectively reduce the deformation of the sill beam, reduce the deformation of the car A-pillar, and ensure the safety of the driver and passengers. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a front view of an automobile frame according to the present invention;

[0027] Figure 2 This is a cross-sectional view of a door sill beam assembly according to the present invention;

[0028] Figure 3 This is a cross-sectional view of a door sill beam assembly according to another embodiment of the present invention;

[0029] Figure 4 This is a cross-sectional perspective view of the driving unit and energy absorption unit of this utility model.

[0030] Reference numerals: 1. Vehicle body; 2. Sill beam; 201. Energy absorption space; 21. Energy absorption frame; 3. Collision extension mechanism; 31. Collision detection unit; 32. Drive unit; 33. Energy absorption unit; 3301. Energy absorption cavity; 34. Shell; 3401. Cavity. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0033] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0037] The technical solution is explained below. Existing solutions disclose the use of an energy-absorbing mechanism within the door sill beam. However, this only enhances the energy absorption of the sill beam itself; it cannot provide a reverse thrust to the obstacle during a frontal collision, thus failing to reduce the sill beam's energy absorption and move the vehicle away from the obstacle. Therefore, if... Figure 1 As shown, this utility model provides a door sill beam assembly, including:

[0038] Body 1,

[0039] The door sill beam 2 is located at the bottom of the door frame of the vehicle body 1, and the door sill beam 2 has an energy-absorbing space 201.

[0040] The collision extension mechanism 3 has an extension energy-absorbing part, which is disposed in the energy-absorbing space 201 of the sill beam 2. When the vehicle body 1 is involved in a collision, the extension energy-absorbing part extends into the energy-absorbing space 201 along the direction of vehicle travel and absorbs the collision energy.

[0041] When the vehicle body 1 collides while moving forward, the collision extension mechanism 3 in the energy absorption space 201 can extend the energy absorption part into the energy absorption space 201, so that the energy absorption part comes into contact with the energy generated by the collision in advance. Before the collision energy is transferred to the sill beam 2, the energy of the obstacle collision can be pre-processed.

[0042] like Figure 1 and Figure 3 As shown, in order to more accurately monitor the vehicle's status, the collision extension mechanism 3 includes:

[0043] The collision detection unit 31 is located at the front end of the vehicle body 1 along the direction of vehicle movement and is used to detect whether the vehicle body 1 has been involved in a collision.

[0044] The drive unit 32 is disposed in the energy absorption space 201 of the sill beam 2 and is electrically connected to the collision detection unit 31 to activate when the vehicle body 1 is involved in a collision.

[0045] The energy absorption unit 33 is located at the output end of the drive unit 32 and is used to extend the energy absorption space 201 when the vehicle body 1 is involved in a collision. The energy absorption unit 33 serves as the extended energy absorption part.

[0046] A collision detection unit 31 is provided at the front end of the vehicle body 1. The state of the vehicle body 1 is detected by sensors. When the vehicle body 1 is involved in a collision, the energy absorption unit 33 is immediately pushed out of the energy absorption space 201 by the drive unit 32, so that the energy absorption unit 33 can absorb the energy generated by the collision between the front end of the vehicle body 1 and the obstacle.

[0047] Specifically, the collision detection unit 31 can be configured as an electromechanical detection sensor, controlling the emission of electrical signals through moving mechanical components. For example, a ball-type detection sensor: a magnet attracts a ball; during a collision, the forward inertial force of the vehicle body causes the ball to detach from the magnet, activating a contact to emit an electrical signal; a roller-type detection sensor: a spring fixes the roller; during a collision, the forward inertial force of the vehicle body causes the roller to roll, activating a contact to emit an electrical signal; an eccentric hammer-type detection sensor: an eccentric hammer rotates under inertial torque, driving a contact to emit an electrical signal. All of the above sensors are mechanical detection units, and this solution does not involve improvements to the program functionality.

[0048] like Figure 2 As shown, in order to ensure that the energy absorption unit 33 can effectively absorb collision energy, the energy absorption unit 33 is hollow inside and has a number of energy absorption cavities 3301, which are arranged side by side in sequence.

[0049] Specifically, the energy absorption unit 33 has six rectangular energy absorption cavities 3301 inside. The six energy absorption cavities 3301 are arranged side by side in sequence. The multiple energy absorption cavities 3301 can play a buffering and energy absorption role, thereby improving the bending and torsional stiffness of the vehicle body 1.

[0050] like Figure 2 As shown, the axial direction of several energy-absorbing cavities 3301 is parallel to the direction of vehicle movement.

[0051] Several energy-absorbing cavities 3301 are formed into quadrangular prisms, with the axial direction of the quadrangular prisms facing the direction of the car's movement. Correspondingly, the energy-absorbing cavities 3301 can also be configured as pentagonal or octagonal polygonal prisms.

[0052] Specifically, such as Figure 2 As shown, in order to ensure that the energy absorption unit 33 can pop out quickly, the drive unit 32 is configured as an electromagnetic linear drive unit.

[0053] The electromagnetic linear drive unit includes a variable-magnetism electromagnet and a permanent magnet. The electromagnet is fixed inside the energy absorption space 201, and the permanent magnet is fixed at the end of the energy absorption unit 33 near the drive unit 32. When a collision is detected with the vehicle body 1, the electromagnet changes its magnetic poles, making the ends of the electromagnet and the permanent magnet that are close to each other like magnetic poles. The two like magnetic poles repel each other, thereby quickly ejecting the energy absorption unit 33 from the energy absorption space 201, allowing the energy absorption unit 33 to absorb collision energy outside the energy absorption space 201.

[0054] like Figure 3 and Figure 4 As shown, in another embodiment of this application, the energy absorption unit 33 can also be popped out quickly. The driving unit 32 is configured as a gas generating unit and an expansion airbag. The gas generating unit and the expansion airbag are located at the end of the energy absorption unit 33 away from the opening of the energy absorption space 201.

[0055] When the collision detection unit 31 detects that the vehicle has collided with an obstacle, the gas generating unit generates a large amount of high-pressure gas inside the inflatable airbag. The inflatable airbag quickly pushes the energy absorption unit 33 out of the energy absorption space 201, so that the energy absorption unit 33 can extend outward and absorb the collision energy.

[0056] To ensure the stable operation of the inflatable airbag, the collision extension mechanism 3 also includes a housing 34. The housing 34 is disposed within the energy absorption space 201 of the sill beam 2. The housing 34 is configured as a cavity 3401 with one end open and the other end closed. The inflatable airbag and the energy absorption unit 33 are sequentially disposed within the cavity 3401, with the inflatable airbag near the closed end of the cavity 3401 and the energy absorption unit near the open end of the cavity 3401. The gas generating unit is disposed within the inflatable airbag.

[0057] Specifically, the gas generating unit consists of an ignition element and solid fuel, both of which are located inside the inflatable airbag. The ignition element is electrically connected to the collision detection unit 31. When the collision detection unit 31 receives an electrical signal, the ignition element ignites the solid fuel, which generates a large amount of gas inside the inflatable airbag, increasing its volume. To ensure that the inflatable airbag pushes the energy absorption unit 33 out of the energy absorption space 201, a shell 34 is provided outside the inflatable airbag and the energy absorption unit 33. The cavity 3401 formed by the shell 34 guides the inflatable airbag to stably push the energy absorption unit 33 out of the energy absorption space 201.

[0058] like Figure 2 As shown, in order to improve the impact resistance of the sill beam 2, the sill beam 2 is provided with an energy-absorbing frame 21 in the energy-absorbing space 201, and one end of the energy-absorbing frame 21 abuts against the closed end of the shell 34.

[0059] The energy-absorbing frame 21 can also absorb collision energy, which can enhance the energy absorption effect of the sill beam and ensure the anti-collision performance of the sill beam. When a vehicle is involved in a collision, the energy-absorbing frame 21 can absorb part of the collision energy, effectively reduce the deformation of the sill beam, reduce the deformation of the car A-pillar, and ensure the safety of the occupants.

[0060] The working principle of the door sill beam assembly is as follows: when the collision detection unit 31 on the vehicle body 1 detects a collision, the drive unit 32 immediately activates to push out the energy absorption unit 33 located in the energy absorption space 201, so that the energy absorption unit 33 comes into contact with the collision energy, allowing the door sill beam 2 to absorb some of the collision energy in advance, thereby reducing the deformation of the car frame and ensuring the safety of the occupants.

[0061] like Figure 1 As shown, on the other hand, this application also provides an automobile frame, including the aforementioned door sill beam assembly and body 1, wherein the door sill beam assembly is disposed at the bottom of the door frame of the body 1.

[0062] When the car frame collides with an obstacle, it can provide the obstacle with a reverse thrust. The energy absorption unit 33 can absorb the collision energy in advance and absorb part of the collision energy before the sill beam 2 deforms, thereby reducing the deformation of the car frame and ensuring the safety of the driver and passengers.

[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door sill beam assembly, characterized in that, include: Body (1); A door sill beam (2) is provided at the bottom of the door frame of the vehicle body (1), and the door sill beam (2) has an energy-absorbing space (201). The collision extension mechanism (3) has an extension energy-absorbing part, which is disposed in the energy-absorbing space (201) of the sill beam (2). When the vehicle body (1) is involved in a collision, the extension energy-absorbing part extends out of the energy-absorbing space (201) in the direction of vehicle movement and absorbs the collision energy.

2. The sill beam assembly as described in claim 1, characterized in that, The collision extension mechanism (3) includes: A collision detection unit (31) is disposed at the front end of the vehicle body (1) along the direction of vehicle movement and is used to detect whether the vehicle body (1) has been involved in a collision. The drive unit (32) is located in the energy absorption space (201) of the sill beam (2) and is electrically connected to the collision detection unit (31) for action when the vehicle body (1) is involved in a collision. An energy-absorbing unit (33) is disposed at the output end of the drive unit (32) and is used to extend the energy-absorbing space (201) when the vehicle body (1) is involved in a collision. The energy-absorbing unit (33) serves as the extended energy-absorbing part.

3. The sill beam assembly as described in claim 2, characterized in that, The energy-absorbing unit (33) is hollow inside and has several energy-absorbing cavities (3301), which are arranged side by side in sequence.

4. The sill beam assembly as described in claim 3, characterized in that, The axial direction of the plurality of energy-absorbing cavities (3301) is parallel to the direction of vehicle movement.

5. The sill beam assembly as described in claim 2, characterized in that, The drive unit (32) is configured as an electromagnetic linear drive unit.

6. The sill beam assembly as described in claim 2, characterized in that, The drive unit (32) is configured as a gas generating unit and an inflatable airbag, which are located at one end of the energy absorbing unit (33) away from the opening of the energy absorbing space (201).

7. The sill beam assembly as described in claim 6, characterized in that, The collision extension mechanism (3) also includes a housing (34), which is disposed in the energy absorption space (201) of the sill beam (2). The housing (34) is configured as a cavity (3401) with one end open and the other end closed. The inflatable airbag and the energy absorption unit (33) are disposed in the cavity (3401) in sequence, wherein the energy absorption unit (33) is close to the open end, and the gas generating unit is disposed in the inflatable airbag.

8. The sill beam assembly as described in claim 7, characterized in that, The threshold beam (2) is provided with an energy-absorbing frame (21) in the energy-absorbing space (201), and one end of the energy-absorbing frame (21) abuts against the closed end of the shell (34).

9. A car frame, characterized in that, Includes a door sill beam assembly as described in any one of claims 1 to 8 and a vehicle body (1), wherein the door sill beam assembly is disposed at the bottom of the door frame of the vehicle body (1).

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