CN115946627A - A drainage structures for car B post - Google Patents

Abstract

The invention relates to the technical field of frameless door automobiles, and specifically discloses a drainage structure for a B-pillar of an automobile, which includes a main body of a B-pillar of an automobile. The extruded section and the B-pillar waist line corner, the B-pillar upper corner: used to connect the sealing strip and cooperate with the frameless door glass. There is a water accumulation area between the B-pillar upper corner and the sealing strip. The water area is a gradual slope, and the highest point of the slope is close to the frameless door glass. B-pillar waistline corner: the bottom of the B-pillar waistline corner is an arc section, and the arc section is flush with the car waistline. There is a drain hole at the lowest point of the water accumulation area, and the drain hole runs through the upper corner of the B-pillar, the extruded section of the B-pillar and the corner of the waistline of the B-pillar. The section direction extends to the bottom of the car B-pillar body and sheet metal parts, which solves the problem of drainage accumulation in the upper corner area of the B-pillar of the traditional frameless door frame seal.

Description

A drainage structure for automobile B-pillar

technical field

The application relates to the technical field of frameless door automobiles, and specifically discloses a drainage structure for B-pillars of automobiles.

Background technique

When using a vehicle in winter in the north, the temperature outside the vehicle and the body sheet metal is very low, and the occupants and air-conditioning heating will increase the relative humidity of the air inside the car. When the hot air with relatively high humidity contacts the low-temperature body sheet metal, it will Condensation occurs on the inner surface of the sheet metal, and frosting occurs on the inner surface of the sheet metal when it is bad;

The above phenomenon is more common in frameless door cars, because there is no door frame at the B-pillar position of the frameless door, and the waterproof is completed by the sealing strip, which not only causes problems in use in severe cold areas, but also, as shown in Figure 3 of the manual, rainy days Or when the car is washed, the water impacts on the sealing strip and splashes upwards, and water will accumulate on the top of the corner area. The above-mentioned accumulated water cannot be discharged smoothly. The design of the prior art can only prevent the water from entering the car, but it cannot make the accumulated water The smooth drainage of water greatly affects the experience of using a frameless car. In view of this, the inventor proposes a drainage structure for the B-pillar of a car based on a frameless door.

Contents of the invention

The purpose of the present invention is to solve the problem of drainage and accumulation in the upper corner area of the B-pillar of the traditional frameless door frame seal strip.

In order to achieve the above object, the present invention provides the following basic solutions:

A drainage structure for a B-pillar of an automobile, comprising a main body of the B-pillar of the automobile, the main body of the B-pillar of the automobile sequentially includes a B-pillar upper corner, a B-pillar extrusion section and a B-pillar waistline corner from top to bottom;

B-pillar upper corner: used to connect the sealing strip and cooperate with the frameless door glass. There is a water accumulation area between the B-pillar upper junction and the sealing strip. The water accumulation area is a gradual slope, and the height of the slope is The highest point is near the frameless door glass;

B-pillar extrusion section: used to connect the extrusion strip to realize the connection of the B-pillar extrusion section;

B-pillar waistline corner: the bottom of the B-pillar waistline corner is an arc section, and the arc section is flush with the car waistline;

A drainage hole is provided at the lowest point of the water accumulation area, and the drainage hole runs through the upper corner of the B-pillar, the extruded section of the B-pillar and the waistline corner of the B-pillar, and the drain hole located inside the waistline corner of the B-pillar is along the Extending along the direction of the arc segment to close to the bottom of the B-pillar body and the sheet metal parts of the car.

The principle and effect of this basic scheme are as follows:

1. It has no effect on the appearance of the traditional car B-pillar body, and has no effect on the strength of the car B-pillar body. Even if drain holes are set, it has no effect on the traditional car B-pillar.

2. The outflow design of the drain hole is concealed. The drain hole located inside the waistline corner of the B-pillar extends along the arc to the bottom close to the B-pillar body and sheet metal parts of the car. The accumulated water will be drained from the bottom, and the overall Up, the outflow from the drain holes will not affect the appearance of the vehicle.

3. Make further improvements to the waterproof of frameless cars, solve the problem of water accumulation at the upper corner of the B-pillar, use the existing upper corner of the B-pillar to design the water accumulation area, and use the water accumulation area to design a through-type drainage hole, Fundamentally, it solves the problem of drainage accumulation in the upper corner area of the B-pillar of the traditional frameless door frame seal strip.

4. In severe cold areas, there will be no water accumulation at the upper corner of the B-pillar, and naturally there will be no risk of icing.

5. Significant improvements have been made to the waterproofing of the door frames of frameless cars.

Further, the drainage hole is a gradual drainage hole, and the diameter of the drainage hole becomes smaller from top to bottom.

Further, the gradient drainage hole is a three-stage gradual change, the first stage of gradual change: from the water accumulation area to the upper end of the B-pillar waistline joint angle and the B-pillar extrusion section; the second stage of gradual change: from the B-pillar extrusion section The upper end of the upper end to the upper end of the B-pillar waistline corner; the third section of gradient: from the B-pillar waistline corner to the bottom arc section of the B-pillar waistline corner.

Further, the extruded section of the B-pillar, the waist line corner of the B-pillar and the upper corner of the B-pillar are integrally formed, all of which are sheet metal parts.

Further, the drainage hole located on the water accumulation area is lower than the overall plane of the water accumulation area, and the distance between the two is 5mm.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 shows a schematic diagram of the installation position of the automobile B-pillar body in a drainage structure for the automobile B-pillar proposed by the embodiment of the present application;

Fig. 2 shows a schematic diagram of the upper corner of the B-pillar and the water accumulation area in a drainage structure for the B-pillar of the automobile proposed by the embodiment of the present application;

Fig. 3 shows a specific installation schematic diagram of a drainage structure for a B-pillar of an automobile proposed in an embodiment of the present application and a diagram of accumulation of water;

Fig. 4 shows an enlarged schematic view of part A in Fig. 3 in a drainage structure for a B-pillar of an automobile proposed by an embodiment of the present application;

Fig. 5 shows a schematic structural diagram of a waistline joint of a B-pillar in a drainage structure for a B-pillar of an automobile proposed by an embodiment of the present application.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Embodiment shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5:

A drainage structure for a B-pillar of an automobile, comprising a main body of the B-pillar of the automobile, the main body of the B-pillar of the automobile sequentially includes a B-pillar upper corner, a B-pillar extrusion section and a B-pillar waistline corner from top to bottom;

Regarding the B-pillar upper corner, B-pillar extrusion section and B-pillar waistline corner: Same as the existing technology, the B-pillar extrusion section, B-pillar waistline corner and B-pillar upper corner are integrally formed, all of which are sheet metal. gold pieces.

B-pillar upper corner: used to connect the sealing strip and use it with frameless door glass. There is a water accumulation area between the B-pillar upper junction and the sealing strip. The water accumulation area is a gradual slope, and the highest point of the slope is close to the frameless frame door glass;

B-pillar extrusion section: used to connect the extrusion strip to realize the connection of the B-pillar extrusion section;

B-pillar waistline corner: the bottom of the B-pillar waistline corner is an arc section, and the arc section is flush with the car waistline;

There is a drainage hole at the lowest point of the water accumulation area. The drainage hole runs through the upper corner of the B-pillar, the extruded section of the B-pillar and the corner of the waistline of the B-pillar. The drainage hole inside the corner of the waistline of the B-pillar is along the arc section The direction extends close to the bottom of the car's B-pillar body and sheet metal parts.

Specifically: the drain hole is a gradual drain hole, and the diameter of the drain hole becomes smaller from top to bottom. The gradient drain hole is a three-stage gradual change. The upper end of the B-pillar extrusion; the second gradient: from the upper end of the B-pillar extrusion to the upper end of the B-pillar waistline corner; the third gradient: from the B-pillar waistline corner to the B-pillar waistline corner The arc section at the bottom, and the drainage hole located on the water accumulation area is lower than the overall plane of the water accumulation area, with a difference of 5mm between the two.

The specific implementation process:

The first step, first look at Figure 3. Figure 3 is the installation diagram of this case. This case is suitable for frameless doors. Let’s talk about the cause of water accumulation first. Because it is a door glass with a frameless design, the door glass at this time will directly contact the side. For the sealing strip, due to the installation matching gap or the material of the side sealing strip, the waterproof effect is very poor. At this time, the accumulated water will pass through the side sealing strip and reach the upper corner of the B pillar. On the upper corner of the pillar, since the upper corner of the B-pillar is a sheet metal part that needs to be installed, there are many installation positions. At this time, the accumulated water will stay at the upper end of the upper corner of the B-pillar, which is called water accumulation here district;

In the rainy day or when the car is washed, the water splashes upward on the sealing strip, and water will accumulate on the top of the corner area. When the water accumulates to a certain extent, it will seep into the car. In severe cold areas, there will be ice risk;

The second step is to use the water accumulation area and set the water accumulation area as a gradual slope without affecting the installation of the upper corner of the B-pillar, so that the water accumulation area flows to the lowest point of the water accumulation area, as shown in Figure 4 Show.

The third step is to remove the accumulated water. Therefore, an improvement is made on the body of the traditional car B-pillar, as shown in Figure 1 and Figure 4. A drain hole is provided at the lowest point of the accumulated water area, and the drain hole runs through the B-pillar Joint corner, B-pillar extruded section and B-pillar waistline joint corner, the drainage hole located inside the B-pillar waistline joint corner extends along the direction of the arc section to the bottom close to the car's B-pillar body and sheet metal parts;

Make the accumulated water discharge along the upper corner of the B-pillar, the extruded section of the B-pillar and the corner of the waistline of the B-pillar, and discharge from the corner of the waistline of the B-pillar along the direction of the arc section. The bottom of the gold piece is to be more concealed, so that the drainage looks more beautiful;

In order to improve the drainage effect, the drain hole is a gradual drain hole. The diameter of the drain hole becomes smaller from top to bottom. The gradient drain hole is a three-stage gradient. The corner and the upper end of the B-pillar extrusion; the second gradient: from the upper end of the B-pillar extrusion to the upper end of the B-pillar waistline corner; the third gradient: from the B-pillar waistline corner to the B-pillar waistline the arcuate segment at the bottom of the corner;

The upper end has a large aperture, and the lower end has a small aperture. The large aperture is used to increase the flow rate of the accumulated water, and the lower aperture is used to flow out when the accumulated water falls on the ground. Effect.

This case solves the problem of drainage accumulation in the upper corner area of the B-pillar of the traditional frameless door frame seal strip.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical content of the present invention In essence, any brief modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (5)

1. A drainage structure for the B-pillar of an automobile, characterized in that: it comprises a B-pillar body of the automobile, and the B-pillar body of the automobile comprises the upper corner of the B-pillar, the extruded section of the B-pillar and the waist of the B-pillar successively from top to bottom. line angle; B-pillar upper corner: used to connect the sealing strip and cooperate with the frameless door glass. There is a water accumulation area between the B-pillar upper junction and the sealing strip. The water accumulation area is a gradual slope, and the height of the slope is The highest point is near the frameless door glass; B-pillar extrusion section: used to connect the extrusion strip to realize the connection of the B-pillar extrusion section; B-pillar waistline corner: the bottom of the B-pillar waistline corner is an arc section, and the arc section is flush with the car waistline; A drainage hole is provided at the lowest point of the water accumulation area, and the drainage hole runs through the upper corner of the B-pillar, the extruded section of the B-pillar and the waistline corner of the B-pillar, and the drain hole located inside the waistline corner of the B-pillar is along the Extending along the direction of the arc segment to close to the bottom of the B-pillar body and the sheet metal parts of the car. 2 . The drainage structure for the B-pillar of an automobile according to claim 1 , wherein the drainage hole is a gradual drainage hole, and the diameter of the drainage hole decreases sequentially from top to bottom. 3 . 3. A drainage structure for the B-pillar of an automobile according to claim 2, characterized in that, the gradient drain hole is a three-stage gradual change, the first stage of gradual change: from the water accumulation area to the waistline of the B-pillar The corner and the upper end of the B-pillar extrusion section; the second stage of gradual change: from the upper end of the B-pillar extrusion section to the upper end of the B-pillar waistline corner; the third stage of gradient: from the B-pillar waistline corner to the B-pillar waist The arc segment at the bottom of the wire corner. 4. A drainage structure for the B-pillar of an automobile according to claim 1, characterized in that, the extruded section of the B-pillar, the waist line corner of the B-pillar and the upper corner of the B-pillar are integrally formed, all of which are sheet metal gold pieces. 5 . The drainage structure for the B-pillar of an automobile according to claim 1 , wherein the drain hole located on the water accumulation area is lower than the overall plane of the water accumulation area, and the distance between the two is 5 mm.

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