WO2017219386A1

WO2017219386A1 - Collapsible supporting mechanism for automobile internal protrusion

Info

Publication number: WO2017219386A1
Application number: PCT/CN2016/088030
Authority: WO
Inventors: 徐明仿
Original assignee: 惠州市德赛西威汽车电子股份有限公司
Priority date: 2016-06-24
Filing date: 2016-06-30
Publication date: 2017-12-28
Also published as: CN106114437B; CN106114437A

Abstract

Disclosed is a collapsible supporting mechanism for an automobile internal protrusion, the mechanism comprising: a protrusion (31), a longitudinal acting force focusing mechanism (32), a longitudinal limiting plate (33), and one or more collapsible supporting elements (34, 35). The protrusion is arranged on an upper surface of the longitudinal acting force focusing mechanism. The bottom of the longitudinal acting force focusing mechanism is in point contact with an upper surface of the longitudinal limiting plate. The one or more collapsible supporting elements are arranged below the longitudinal limiting plate and are used for providing supporting forces required by the longitudinal limiting protrusion. With the collapsible supporting mechanism for the automobile internal protrusion, force balance and torque balance of the longitudinal acting forces acting on different positions of the surface of the protrusion can still be maintained, thereby avoiding the fracture and scrapping of parts due to force unbalance and torque unbalance, reducing the maintenance cost, and ensuring the driving safety.

Description

Collapsible support mechanism for automobile interior protrusion

Technical field

The invention relates to the technical field of vehicle-mounted devices, and in particular to a collapsible support mechanism for an inner protrusion of an automobile.

Background technique

According to the requirements of GB11552 "Inside protrusions of passenger cars", in order to ensure the safety of passengers inside the vehicle, for the components such as switches and knobs made of rigid materials, when the height of the surface of the instrument panel is more than 9.5 mm (mm), With a flat end head of not more than 50 mm in diameter, a forward longitudinal horizontal force of 378 Newtons is applied thereto, and these members should be able to retract the instrument panel or fall off. In order to meet the requirements of GB11552, special support mechanisms are usually designed for the protrusions such as switches and knobs. When the protrusions are subjected to a large longitudinal horizontal force, the support structures are broken to cause the protrusions to retract into the instrument panel. Such structures are often referred to as "collapsible support mechanisms."

The basic principle of the existing collapsible support mechanism is shown in Fig. 1. For such a collapsible support mechanism, the protrusion itself actually forms a lever, and each support force acting point and the longitudinal force acting point become a lever. Potential fulcrum.

When the crushing performance of the protrusion is tested in accordance with GB11552, the center point of the longitudinal force is located at the center of the upper surface of the protrusion, and the force arms of the respective supporting forces are equal, so that the forces of the collapsible supporting members are equal. However, when installing or using an in-vehicle component with a protrusion such as a switch or a pull button, a certain longitudinal force is often applied to the upper surface of the protrusion, and the longitudinal force often does not act on the upper surface of the protrusion. Center, at this time the force arms of the respective supporting forces are no longer equal, and the supporting element closest to the point of action of the longitudinal force is subjected to the greatest force due to the lever effect.

As shown in FIG. 2, when the longitudinal force is close to the directly above the collapsible support member, the support member is subjected to a force almost equal to the longitudinal force, and is likely to be greater than the design strength, so that the support member occurs. Breaking, causing the corresponding parts to be scrapped, increasing maintenance costs and further causing The function of the in-vehicle device is invalid, resulting in a safety accident.

Summary of the invention

The technical problem to be solved by the present invention is to provide a collapsible support mechanism for an internal protrusion of an automobile, which can maintain the balance of force and balance of the moment acting on different positions of the surface of the protrusion, thereby avoiding the resulting The parts are scrapped and scrapped, reducing maintenance costs and ensuring driving safety.

In order to solve the above technical problem, an embodiment of the present invention provides a collapsible support mechanism for an inner protrusion of an automobile, comprising: a protrusion, a longitudinal force focusing mechanism, a longitudinal limiting plate, and one or more collapsible Supporting element;

The protrusion is disposed on an upper surface of the longitudinal force focusing mechanism;

a bottom of the longitudinal force focusing mechanism is in point contact with an upper surface of the longitudinal limiting plate; the one or more collapsible support members are disposed below the longitudinal limiting plate for providing a longitudinal limit The supporting force required for the protrusion.

Further, the collapsible support mechanism of the inner protrusion of the automobile includes a plurality of lateral limiting mechanisms; the plurality of lateral limiting mechanisms are respectively disposed outside the longitudinal force focusing mechanism for The protrusions and the longitudinal force focusing mechanism are positioned laterally.

Preferably, the longitudinal force focusing mechanism adopts a multi-stage structure, and the side surface area of each stage structure is gradually decreased from top to bottom; the upper surface of the longitudinal force focusing mechanism is a plane; the longitudinal force focusing mechanism bottom is The contact point of the upper surface of the longitudinal limiting plate is located at an intermediate position of the longitudinal limiting plate.

In an achievable manner, the bottom of the longitudinal force focusing mechanism is a hemispherical structure or a parabolic structure.

In another achievable manner, the bottom of the longitudinal force focusing mechanism is planar, and the bottom force planar focusing mechanism has a bottom planar area that is smaller than its upper surface planar area.

Further, in an achievable manner, the collapsible support element is a PCB board bridge.

In another achievable manner, the collapsible support element is a cantilever beam structure.

Preferably, the collapsible support mechanism of the automobile interior protrusion comprises at least two collapseable a contraction support member; each of the collapsible support members is disposed at a lower position of both ends of the longitudinal limit plate.

Further, the force strength of a single of the collapsible support members is less than 378/m Newton; wherein the parameter m is the number of collapsible support members. Preferably, the protrusion comprises a switch or a button member on the in-vehicle electronic component.

The collapsible support mechanism for the inner protrusion of the automobile provided by the embodiment of the invention adopts a clever physical space structure to modify the shape of the longitudinal force focusing mechanism, and the unique hemispherical bottom can be in point contact with the longitudinal limit plate. The upper surface is a flat surface to be placed to receive the protrusion; when the protrusion is applied with a longitudinal force, the interaction force between the longitudinal force focusing mechanism and the longitudinal limiting plate is a "longitudinal limiting force", the longitudinal direction The limiting force occurs at a contact point between the longitudinal force focusing mechanism and the longitudinal limiting plate, regardless of whether the longitudinal force exerted on the protrusion is at the center position or the edge position of the upper surface of the protrusion, and each lateral limiting mechanism The small gap existing between the longitudinal force focusing mechanisms allows the longitudinal force focusing mechanism to rotate very minutely. At this time, the lateral limiting mechanism applies a horizontal force to the longitudinal force focusing mechanism to maintain its force balance and moment balance. The longitudinal limit force is equal to the longitudinal force. The position of the contact point of the longitudinal force focusing mechanism and the longitudinal limit plate is also almost constant. Due to the presence of the longitudinal force focusing mechanism, the force arms of the respective collapsed support members remain almost unchanged, and thus the magnitude of the force does not change. Therefore, each of the collapsible supporting members does not break due to a change in the positional position of the longitudinal acting force applied to the upper surface of the projection, thereby avoiding problems such as scrapping of parts and damage of the in-vehicle device.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of an embodiment in which a conventional collapsible support mechanism is applied with a longitudinal force at the center of a projection surface.

2 is a schematic view showing the structure of an embodiment in which a conventional collapsible support mechanism is applied with a longitudinal force on the center of the surface of the projection.

3 is a schematic structural view of an embodiment of a collapsible support mechanism for a vehicle interior protrusion provided by the present invention (the bottom of the longitudinal force focusing mechanism is a hemispherical structure).

4 is a structural schematic view of still another embodiment of the collapsible support mechanism for the inner protrusion of the automobile provided by the present invention (the bottom of the longitudinal force focusing mechanism is a parabolic structure).

FIG. 5 is a schematic structural view of still another embodiment of the collapsible support mechanism for the inner protrusion of the automobile provided by the present invention (the bottom of the longitudinal force focusing mechanism is an inverted trapezoidal structure).

Fig. 6 is a structural schematic view showing still another embodiment of the collapsible support mechanism for the inner protrusion of the automobile provided by the present invention (the bottom portion of the longitudinal force focusing mechanism is a curved surface structure).

FIG. 7 is a schematic view showing the force of the collapsible support mechanism of the automobile inner protrusion provided by the present invention when the longitudinal force is deviated from the center of the upper surface of the protrusion.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

Referring to FIG. 3, a schematic structural view of an embodiment of a collapsible support mechanism for an automobile interior protrusion provided by the present invention, wherein the bottom of the longitudinal force focusing mechanism is preferably a hemispherical structure.

Specifically, the longitudinal force on the collapsible support mechanism of the automobile interior protrusion shown in FIG. 3 is applied to the center of the upper surface of the protrusion.

In the present embodiment, the common protrusions inside the passenger car are components such as switches and knobs on electronic components such as car navigation and air-conditioning controllers. When an accident occurs in the vehicle, the human body is likely to hit the upper surface. Thereby applying a longitudinal force; when installing or using the in-vehicle electronic components, the person concerned may also exert a certain longitudinal force on the upper surface thereof. It should be noted that the protrusions include, but are not limited to, switches or button members on the vehicle electronic components.

Specifically, the collapsible support mechanism comprises: a protrusion 31, a longitudinal force focusing mechanism 32, a longitudinal limiting plate 33, and one or more collapsible support members;

Preferably, the collapsible support mechanism comprises at least two collapsible support elements; each of the collapsible support elements is respectively disposed below the two ends of the longitudinal limit plate 33, as in FIG. The first collapsible support element 34 and the second collapsible support element 35 are shown.

The protrusion 31 is disposed on an upper surface of the longitudinal force focusing mechanism 32;

The bottom of the longitudinal force focusing mechanism 32 is a hemispherical structure, and the hemispherical structure is in point contact with the upper surface of the longitudinal limiting plate 33;

The one or more collapsible support members (the first collapsible support member 34 and the second collapsible support member 35) are disposed below the longitudinal limit plate 33 for providing a longitudinal limit The support force required for the protrusion 31.

In the present embodiment, the longitudinal force focusing mechanism 32 is coupled to the protrusion 31, receives the longitudinal force from the protrusion 31, and transmits the longitudinal force to the longitudinal limit plate 33. For convenience of presentation, the interaction force between the longitudinal force focusing mechanism 32 and the longitudinal limiting plate 33 is referred to as "longitudinal limiting force". The contact area of the longitudinal force focusing mechanism 32 and the longitudinal limiting plate 33 is small. As shown in the embodiment of FIG. 3, since the bottom of the longitudinal force focusing mechanism 32 has a hemispherical structure, the upper surface of the longitudinal limiting plate 33 is flat. Therefore, the longitudinal force focusing mechanism 32 is (in theory) almost point contact with the longitudinal limit plate 33, and the contact area between the two is very small.

The longitudinal limiting plate 33 receives the force from the longitudinal force focusing mechanism 32 and transmits the force to each of the collapsible support members (the first collapsible support member 34 and the second collapsible support member 35) .

The collapsible support members (the first collapsible support member 34 and the second collapsible support member 35) provide the support force required for the longitudinal limit projections 31, and the support force is greater than the design strength of the design A break can occur.

When a longitudinal force is applied to the center of the upper surface of the projection 31, the action of the longitudinal restraining force is the contact point of the longitudinal force focusing mechanism 32 with the longitudinal limiting plate 33, the size of which is equal to the longitudinal force.

In this embodiment, further, the collapsible support mechanism of the inner protrusion of the automobile includes a plurality of lateral limiting mechanisms; the plurality of lateral limiting mechanisms are respectively disposed at the longitudinal force focusing mechanism 32 The outer side is for lateral positioning of the protrusion 31 and the longitudinal force focusing mechanism 32.

For example, the collapsible support mechanism of the automobile interior protrusion provided by the embodiment includes a first lateral limit mechanism 36 and a second lateral limit mechanism 37.

The first lateral limiting mechanism 36 and the second lateral limiting mechanism 37 are respectively disposed on the left and right sides of the longitudinal force focusing mechanism 32 for focusing the protrusion 31 and the longitudinal force Mechanism 32 performs lateral positioning. In addition, in a practical application, the user may further add a third lateral limiting mechanism and a fourth lateral limiting mechanism on the upper and lower sides of the longitudinal force focusing mechanism 32 in a direction perpendicular to the plane (not shown in the drawing) Shown), the user can add a certain number of lateral limit mechanisms on the outside of the longitudinal force focusing mechanism 32 as needed.

Preferably, the longitudinal force focusing mechanism 32 provided by the embodiment adopts a multi-stage structure, and the side surface areas of the respective stages are gradually decreased from top to bottom; specifically, the upper surface of the longitudinal force focusing mechanism 32 is a plane; A contact point of the bottom of the longitudinal force focusing mechanism 32 with the upper surface of the longitudinal limiting plate 33 is located at an intermediate position of the longitudinal limiting plate 33.

In yet another achievable manner, the bottom of the longitudinal force focusing mechanism 32 is a parabolic structure.

As shown in FIG. 4, it is a schematic structural view of still another embodiment of the collapsible support mechanism for the inner protrusion of the automobile provided by the present invention, wherein the bottom of the longitudinal force focusing mechanism 32 is a parabolic structure.

In the present embodiment, the bottom of the longitudinal force focusing mechanism 32 provided by the present invention may also be designed in other shapes, which only need to ensure that the bottom of the longitudinal force focusing mechanism 32 is in point contact with the upper surface of the longitudinal limiting plate 33. Just fine. In yet another achievable manner, the bottom of the longitudinal force focusing mechanism 32 is planar, and the bottom force planar focusing mechanism 32 has a bottom planar area that is less than its upper surface planar area. As shown in FIG. 5, the bottom of the longitudinal force focusing mechanism 32 is an inverted trapezoidal structure, and the contact area between the lower surface of the trapezoidal structure and the upper surface of the longitudinal limiting plate 33 is a small area contact, and the area thereof is much smaller than the longitudinal force focusing. The upper surface of mechanism 32. Similarly, as shown in FIG. 6, it is a schematic structural view of the longitudinal force focusing mechanism 32, which has a certain curvature at the bottom, but the contact area between the bottom and the upper surface of the longitudinal limiting plate 33 is also a small area. Plane contact or approximate point contact.

As shown in FIG. 7 , it is a schematic diagram of the force of the collapsible support mechanism of the automobile internal protrusion provided by the present invention when the longitudinal force is deviated from the center of the upper surface of the protrusion, and the bottom of the longitudinal force focusing mechanism 32 is hemispherical. The structure is an example.

Specifically, when the longitudinal force acting on the protrusion 31 deviates from the center position of the upper surface of the protrusion 31, the first lateral limiting mechanism 36 and the second lateral limiting mechanism 37 respectively The longitudinal force focusing mechanism 32 applies a horizontal force;

The longitudinal force focusing mechanism 32 is flanked by the first lateral limiting mechanism 36 and the first Rotation occurs between the two lateral limiting mechanisms 37 to maintain the force balance and moment balance of the longitudinal force focusing mechanism 32 itself.

When installing or using an in-vehicle component with a protrusion such as a switch or a pull button, the longitudinal force may deviate from the center of the upper surface of the protrusion due to the lateral limit mechanism (the first lateral limit mechanism 36 and the second lateral limit) There is a slight gap between the position mechanism 37) and the longitudinal force focusing mechanism 32, as shown by S1 and S2 of FIG. 4, so that the longitudinal force focusing mechanism 32 will undergo very slight rotation, and the lateral limit mechanism (first The lateral limiting mechanism 36 and the second lateral limiting mechanism 37) apply a horizontal force to the longitudinal force focusing mechanism 32 to maintain its force balance and torque balance. At this time, the magnitude of the longitudinal restraining force is still equal to the longitudinal force applied to the upper surface of the projection 31, and the point of action is the contact point of the longitudinal force focusing mechanism 32 with the longitudinal limiting plate 33, which position remains almost unchanged. . Thus, although the longitudinal limiting plate 33 forms a lever mechanism, when the acting position of the longitudinal acting force deviates from the center of the upper surface of the projection 31, each of the collapsible supporting members is present due to the presence of the longitudinal force focusing mechanism 32 (first The force arms of the collapsible support member 34 and the second collapsible support member 35) remain almost unchanged, and thus the force is not changed. Therefore, each of the collapsible supporting members does not break due to a change in the position of the longitudinal acting force applied to the upper surface of the projection 31, thereby avoiding the scrapping of the parts resulting therefrom.

Further, in an achievable manner, the collapsible support members (the first collapsible support member 34 and the second collapsible support member 35) are PCB board bridges.

In yet another achievable manner, the collapsible support members (the first collapsible support member 34 and the second collapsible support member 35) are cantilevered.

The collapsible support element can be broken when the supporting force is greater than the strength of its design to meet the safety standards of the passenger car.

In a specific implementation, the force strength of a single of the collapsible support members is less than 378/m Newton; wherein the parameter m is the number of collapsible support elements. For example, when m=3, the design strength of each support element is no more than 126 Newtons.

The collapsible support mechanism of the inner protrusion of the automobile provided by the embodiment of the invention adopts a clever physical space structure to modify the shape of the longitudinal force focusing mechanism, and the unique hemispherical bottom can be In contact with the longitudinal limiting plate, the upper surface is flat to place the protrusion to be received; when the protrusion is applied with the longitudinal force, the interaction force between the longitudinal force focusing mechanism and the longitudinal limiting plate is "longitudinal" Limiting force", the longitudinal limiting force occurs at a contact point between the longitudinal force focusing mechanism and the longitudinal limiting plate, whether the longitudinal force exerted on the protrusion is at the center or edge position of the upper surface of the protrusion The slight gap existing between each lateral limiting mechanism and the longitudinal force focusing mechanism allows the longitudinal force focusing mechanism to rotate very minutely, and the lateral limiting mechanism applies a horizontal force to the longitudinal force focusing mechanism to maintain The force balance and the moment balance, the longitudinal limit force is equal to the longitudinal force. The position of the contact point of the longitudinal force focusing mechanism and the longitudinal limit plate is also almost constant. Due to the presence of the longitudinal force focusing mechanism, the force arms of the respective collapsed support members remain almost unchanged, and thus the magnitude of the force does not change. Therefore, each of the collapsible supporting members does not break due to a change in the positional position of the longitudinal acting force applied to the upper surface of the projection, thereby avoiding problems such as scrapping of parts and damage of the in-vehicle device.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A collapsible support mechanism for an inner protrusion of an automobile, comprising: a protrusion, a longitudinal force focusing mechanism, a longitudinal limiting plate, and one or more collapsible supporting members;

The protrusion is disposed on an upper surface of the longitudinal force focusing mechanism;

a bottom of the longitudinal force focusing mechanism is in point contact with an upper surface of the longitudinal limiting plate;

The one or more collapsible support members are disposed below the longitudinal stop plate for providing the support force required for the longitudinal limit projections.
The collapsible support mechanism for an inner protrusion of a vehicle according to claim 1, further comprising a plurality of lateral limiting mechanisms; wherein said plurality of lateral limiting mechanisms are respectively disposed at said longitudinal force focusing mechanism The outer side is for lateral positioning of the protrusion and the longitudinal force focusing mechanism.
The collapsible support mechanism for an inner protrusion of a vehicle according to claim 1, wherein the longitudinal force focusing mechanism adopts a multi-stage structure, and the side area of each structure is gradually decreased from top to bottom;

The upper surface of the longitudinal force focusing mechanism is a flat surface; a contact point of the bottom of the longitudinal force focusing mechanism with the upper surface of the longitudinal limiting plate is located at an intermediate position of the longitudinal limiting plate.
A collapsible support mechanism for an automotive interior projection according to claim 3, wherein the bottom of the longitudinal force focusing mechanism is a hemispherical structure or a parabolic structure.
A collapsible support mechanism for an inner protrusion of a vehicle according to claim 3, wherein a bottom portion of said longitudinal force focusing mechanism is flat, and a bottom plane area of said longitudinal force focusing mechanism is smaller than Upper surface area.
A collapsible support mechanism for an automotive interior projection according to claim 1, wherein said collapsible support member is a PCB board bridge.
A collapsible support mechanism for an automotive interior projection according to claim 1 wherein said collapsible support member is a cantilever beam structure.
A collapsible support mechanism for an automotive interior projection according to claim 1 including at least two collapsible support members; each collapsible support member being disposed at said longitudinal limit The lower position of the ends of the board.
The collapsible support mechanism for an inner protrusion of an automobile according to claim 1, wherein a force strength of the single collapsible support member is less than 378/m Newton; wherein the parameter m is a collapsible support The number of components.
A collapsible support mechanism for an automotive interior projection according to claim 1 wherein said projection comprises a switch or button member on the in-vehicle electronic component.