CN206436805U - sealing device for door frame of vehicle body - Google Patents

Abstract

The utility model belongs to the auto parts field specifically provides a sealing device for automobile body door frame. The utility model discloses aim at solving the installation back of automobile body door frame sealing strip unstability, produce the dislocation easily, cause the poor problem of automobile body sealing performance. Mesh for this reason, the technical scheme of the utility model among, a sealing device for automobile body door frame is provided with at least one boss, sealing device has rivet and sealing strip that is used for car door frame part to connect, the sealing strip has the cell structure and including outside seal lip and inboard seal lip, inboard seal lip and the inboard component of car door frame the rivet and boss sealing contact has effectively avoided the dislocation of automobile body door frame sealing strip, has strengthened the sealed effect of sealing washer, has effectively alleviated the noise problem of car.

Description

Seals for body door frames

technical field

The utility model belongs to the field of auto parts and specifically provides a sealing device for a door frame of a vehicle body.

Background technique

The application of electric vehicles continues to be promoted, especially in recent years, due to the gradual improvement of the performance of electronic energy storage devices and the continuous reduction of non-renewable energy reserves, electric vehicles have gradually begun to lead the trend of the automotive industry. With the widespread use of electric vehicles, performance problems such as poor battery life and slow speed increase are becoming more and more prominent. Studies have found that as long as the weight of the car body is reduced, the above problems can be effectively alleviated, so electric cars have begun to use a large number of all-aluminum bodies. However, due to the poor machining accuracy and easy deformation of aluminum materials, the door frame sealing problem has become a new problem. As a mainstream new vehicle, electric vehicles have stricter noise requirements than traditional vehicles. Because there is no background noise from traditional vehicle engines, wind noise and road noise are the main sources of noise for electric vehicles. The most important factor of wind noise and road noise is the sealing performance of the car, so the sealing of the electric car door frame becomes particularly important.

In order to enhance the sealing effect of the car door frame, the traditional car door frame sealing method is to install a sealing strip around the edge of the entire car door frame, and seal the car door through the sufficient compression formed between the multiple sealing lips inside the sealing strip and the door frame sheet metal surface . Because the car door frame is mostly composed of multi-layer metal sheets, the thickness distribution of the car door frame is uneven, and there will inevitably be gaps at the connection between the upper body and the lower body, and the sealing difficulty is further increased. As far as the traditional alloy car body is concerned, although the thickness of the car door frame is uneven and there are gaps, the thickness of the car door frame does not change much after the vehicle is installed and used. After the sealing strip is installed in place, it can maintain a good seal. Sealing performance, but the thickness difference of aluminum material is large, based on the existing technology, it is impossible to produce sealing strips with variable cross-section thickness, resulting in poor sealing performance of the door frame, and the sealing strip is very unstable during use, prone to misalignment, and the sealing performance is extremely high Low.

Correspondingly, there is a need in the art for a new sealing device for a door frame of a vehicle body to solve the above problems.

Utility model content

In order to solve the above-mentioned problems in the prior art, namely, in order to solve the problem that the existing automobile door frame sealing device cannot well seal the automobile door frame especially having aluminum parts. The utility model provides a novel sealing device for a door frame of a vehicle body. The door frame of a vehicle body includes a body base, a side wall outer panel connected to the outside of the body base, and an inner member connected to the inside of the body base. In that, the sealing device includes a sealing strip and at least one boss arranged on the inner side of the vehicle body base. Boss sealing contacts.

In the preferred technical solution of the sealing device for the door frame of the vehicle body, the sealing strip has a groove structure and includes an outer sealing lip and an inner sealing lip. In the assembled state, the outer sealing lip and the side wall The outer plate is in sealing contact and the inner sealing lip is in sealing contact with the inner member and the boss.

In the above preferred technical solution of the sealing device for the door frame of the vehicle body, the dimension of the boss is set such that the thickness from the outer surface of the side wall outer panel to the inner surface of the boss is equal to the thickness from the inner surface of the boss. The thickness between the outer surface of the side wall outer panel and the inner surface of the inner member.

In the preferred technical solution of the above sealing device for a door frame of a vehicle body, the vehicle body base is an underbody side member.

In the preferred technical solution of the above sealing device for a door frame of a vehicle body, the inner member is a reinforcement member of a door frame of a vehicle body.

In a preferred technical solution of the above-mentioned sealing device for a vehicle body door frame, the side wall outer panel and the vehicle body door frame reinforcement member are respectively connected to the outer side and the inner side of the vehicle body bottom side member by rivets.

In a preferred technical solution of the sealing device for a door frame of a vehicle body, at least one of the side panel, the door frame reinforcement member, the rivet, and the underbody side member is made of aluminum material.

In the preferred technical solution of the above-mentioned sealing device for a vehicle body door frame, the vehicle body door frame is a front body door frame or a rear body door frame of an automobile.

In the preferred technical solution of the above-mentioned sealing device for a door frame of a vehicle body, the door frame of a vehicle body is a trunk frame of an automobile.

Those skilled in the art can understand that, in the technical solution of the present utility model, the sealing device for the door frame of the vehicle body is provided with at least one boss, and the sealing device has a rivet and a sealing strip for connecting parts of the automobile door frame, so The sealing strip has a groove structure and includes an outer sealing lip and an inner sealing lip, and the inner sealing lip is in sealing contact with the inner member of the automobile door frame, the rivet and the boss, effectively avoiding the dislocation of the door frame sealing strip of the vehicle body, so that The sealing of the body door frame is more firm and reliable. In other words, on the basis of the existing body door frame sealing device, the utility model adds a boss to the body door frame, so that the door frame part in contact with the sealing strip has roughly the same thickness, ensuring that the sealing strip is always in the best working position, Greatly improved the sealing effect of the body.

Description of drawings

Fig. 1 is a schematic diagram of the outer side of the overall body door frame used in combination with the sealing device for the body door frame of the present invention.

Fig. 2 is a schematic diagram of the inner side of the lower edge of the door frame of the rear door of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention.

Fig. 3 is a schematic diagram of the inner side of the lower edge of the rear door frame of the vehicle body with the sealing strip installed in combination with the sealing device for the door frame of the vehicle body of the present invention.

Fig. 4 is a schematic diagram of the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention.

Fig. 5 is a partially enlarged schematic view of the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention.

Fig. 6 is a schematic cross-sectional view of the sealing strip used in the sealing device for the door frame of the vehicle body according to the present invention.

Fig. 7 is a two-dimensional cross-sectional schematic diagram of the sealing strip installed at the boss on the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention.

Fig. 8 is a two-dimensional cross-sectional schematic diagram of the rivet on the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention.

detailed description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the utility model, and are not intended to limit the protection scope of the utility model. Those skilled in the art can make adjustments as needed so as to adapt to specific applications. For example, although the description is described in conjunction with a body door frame, the "body door frame" here should be interpreted in a broad sense, which includes any openable and closable frame structure on a vehicle, such as a trunk frame or a front cabin frame. Therefore, on the premise of not departing from the basic principle of the present invention, the present invention can obviously also be applied to other devices that need to be sealed, such as a vehicle trunk or a front cabin.

It should be noted that, in the description of the present utility model, terms such as "up", "down", "left", "right", "front", "rear", "inside" and "outside" indicate directions or The terms of positional relationship are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the utility model.

In addition, it should be noted that in the description of the present utility model, unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection mode of two components can be a fixed connection , can also be a detachable connection, or a one-piece connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

As shown in FIG. 1 , this figure is a schematic diagram of the outside of the overall body door frame used in combination with the sealing device for the body door frame of the present invention. The vehicle body door frame includes a side panel 1 installed on the vehicle body body. The side panel 1 is installed on the outside of the door frame of the vehicle body; the sealing strip 2 is installed on the front door frame of the vehicle body; the seal 3 is installed on the rear door frame of the vehicle body. It should be noted that the door frame of the front door of the body and the door frame of the rear door of the body are described separately here because the structure of the door frame of the front door of the body and the frame of the rear door of the body are different in this example, but this description should not be used as a guideline for the position of the sealing strip. limit.

As shown in FIG. 2 , this figure is a schematic diagram of the inner side of the lower edge of the rear door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention. The parts shown in the figure include the underbody rail 4, the side panel 1 installed on the outside of the underbody rail 4, and the rear door reinforcement 5 installed on the inside of the underbody rail 4, and the boss 6 is arranged on the underbody Inside the side member 4 , rivets 7 connect the side panel 1 and the rear door reinforcement 5 to the underbody side member 4 . As mentioned in the background technology section, the side wall outer panel 1 and the bottom longitudinal beam 4 are mostly sheet metal parts, and the rear door reinforcement 5 of the car body is mostly an injection-molded aluminum part, which are sequentially fastened and fitted by rivets 7 , The thickness of the body door frame varies greatly, making the installation of the sealing strip unstable. It should be noted that the connection method between the parts is not limited to rivet connection, and other methods are acceptable; the boss 6 can be processed at any position inside the side member 4 of the vehicle body, and the size of the boss is set so that it can be viewed from the side wall The thickness between the outer surface of the outer panel 1 and the inner surface of the boss 6 is equal to the thickness between the outer surface of the side wall outer panel 1 and the inner surface of the reinforcing member 5 .

As shown in FIG. 3 , this figure is a schematic view of the inner side of the lower edge of the rear door frame of the vehicle body with the sealing strip installed in combination with the sealing device for the door frame of the vehicle body of the present invention. Since the boss 6 shown in Fig. 2 is provided, when the rear door frame sealing strip 3 of the vehicle body is installed in place, the outer sealing lip of the sealing strip 3 is in sealing contact with the side wall outer panel 1, and the inner sealing lip is in sealing contact with the reinforcing member 5 and the rivet 7. And the sealing contact of the boss 6, the whole sealing strip fits very smoothly, it is not easy to have any misalignment, and the sealing performance has been greatly improved.

As shown in FIG. 4 , this figure is a schematic diagram of the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention. The parts shown in the figure include the underbody longitudinal beam 4 with the side wall outer panel 1 installed on the outside, the boss 6 processed on the inner side of the underbody side beam 4, the reinforcement 8 at the B-pillar of the front door frame, and the The outer panel 1 and the reinforcement 8 are connected to the rivets 7 of the underbody rail 4 . The reinforcement 8 at the B-pillar of the front door frame is connected to the underbody longitudinal beam 4 through rivets 7, so that the thickness of the front door frame is different and gaps appear. See Figure 5 for a partial detail view.

As shown in FIG. 5 , this figure is a partially enlarged schematic diagram of the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention. As mentioned above, the reinforcement 8 at the B-pillar of the front door frame is connected to the underbody longitudinal beam 4 through the rivets 7, so that the thickness of the part with the reinforcement 8 is significantly greater than the thickness of the part without the reinforcement 8, thereby affecting the sealing Strip sealing effect. Also as mentioned above, the sealing device for the door frame of the vehicle body of the present utility model is provided with bosses in the part without the reinforcing member 8, so that the thickness of each part of the door frame of the vehicle body is approximately the same, so that a higher thickness can be achieved between the sealing strip and the door frame of the vehicle body. A good sealing effect, and its specific matching method will be described in detail below with reference to FIG. 7 and FIG. 8 .

As shown in FIG. 6 , this figure is a schematic cross-sectional view of the sealing strip of the sealing device for the door frame of the vehicle body according to the present invention. Here, the front door sealing strip 2 of the vehicle body is taken as an example, but the use of the sealing strip 2 is not limited to the front door of the vehicle body. The front door sealing strip 2 of the vehicle body includes two inner sealing lips 9 and a plurality of rack-shaped outer sealing lips 10. After the sealing strip is installed in place, the sealing lip reaches a certain amount of deformation by extruding the mating surface of the part so that it has sufficient extrusion force. Force, so as to achieve the sealing effect. In addition, it should be noted that the specific shape and characteristic size of the sealing strip are not limited; the shape and quantity of the sealing lips are not limited.

As shown in FIG. 7 , this figure is a two-dimensional cross-sectional schematic diagram of the sealing strip installed at the boss on the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention. The parts shown in the figure include the underbody longitudinal beam 4, the side panel 1 installed on the outside of the underbody longitudinal beam 4, the front door sealing strip 2 of the vehicle body, the boss 6 processed on the inside of the underbody longitudinal beam 4 and the front door frame B Reinforcement 8 at the column. The inner structure of the front door weather strip 2 of the vehicle body includes an inner sealing lip 9 and an outer sealing lip 10 . This figure is taken at the joint between the body front door weather strip 2 and the boss 6. After the body front door weather strip 2 is installed in place, the inner sealing lip 9 of the body front door weather strip 2 is squeezed on the outer surface of the boss 6 and forms a certain amount of deformation. , the outer sealing lip 10 of the front door weather strip 2 of the vehicle body is extruded on the mating surface of the side wall outer panel 1 and forms a certain amount of deformation. , the sealing strip 2 is firmly fixed on the front door frame of the vehicle body, and the existence of the boss 6 makes the thickness of each part of the door frame of the vehicle body roughly the same, so that the installation of the sealing strip is more stable and the sealing effect is greatly increased.

As shown in FIG. 8 , this figure is a two-dimensional cross-sectional schematic diagram of the rivet on the inner side of the lower edge of the front door frame of the vehicle body used in combination with the sealing device for the door frame of the vehicle body of the present invention. The parts shown in the figure include the underbody longitudinal beam 4, the side panel 1 installed outside the underbody longitudinal beam 4, the front door sealing strip 2 of the vehicle body, the reinforcement 8 at the B-pillar of the front door frame, and the underbody longitudinal beam 4 With the reinforcement 8 and/or the rivets 7 of the side panel 1 , the inner structure of the front door weather strip 2 includes an inner sealing lip 9 and an outer sealing lip 10 . This figure is taken at the joint between the body front door weather strip 2 and the rivet 7. After the body front door weather strip 2 is installed in place, the two inner sealing lips 9 of the body front door weather strip 2 are respectively squeezed on the top and bottom of the rivet 7 used to connect the parts. The mating surface produces a certain amount of deformation, and the outer sealing lip 10 of the front door weather strip 2 of the vehicle body is squeezed on the mating surface of the side wall outer panel 1 and produces a certain amount of deformation. The deformation tension of the front door weather strip 2 itself makes it produce enough The extrusion force of the sealing strip 2 is firmly squeezed on the front door frame, and the existence of the boss 6 makes the thickness of each part of the door frame of the vehicle body roughly the same, and the sealing effect of the sealing strip 2 has been further enhanced. In addition, it should be noted that the connection method between the vehicle body bottom side member 4 and the reinforcement member 8 and/or the side panel 1 is not limited to the rivet connection, therefore, it is not used as a limitation on the application occasion of the weather strip.

So far, the technical solution of the utility model has been described in conjunction with the preferred implementations shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific implementations. On the premise of not departing from the sealing principle of the utility model, those skilled in the art can make equivalent changes or replacements to relevant technical features, and the technical solutions after these changes or replacements will all fall within the protection scope of the utility model.

Claims (9)

CLAIMS 1. A sealing device for a body door frame comprising a body underbody, a side panel connected to the outside of the body underbody, and an inner member connected to the inside of the body underbody, It is characterized in that the sealing device comprises a sealing strip and at least one boss arranged inside the vehicle body base, and in the assembled state, the sealing strip is simultaneously connected with the side wall outer panel, the inner member and The boss is in sealing contact. 2. The sealing device for a door frame of a vehicle body according to claim 1, wherein the sealing strip has a groove structure and includes an outer sealing lip and an inner sealing lip, and in an assembled state, the outer sealing A lip is in sealing contact with the side quarter outer panel, and the inner sealing lip is in sealing contact with the inner member and the boss. 3. The sealing device for a door frame of a vehicle body according to claim 2, characterized in that, the dimension of the boss is set such that the distance from the outer surface of the side wall outer panel to the inner surface of the boss is The thickness between them is equal to the thickness from the outer surface of the side wall outer panel to the inner surface of the inner member. 4. The sealing device for a door frame of a vehicle body according to claim 3, wherein the vehicle body substructure is an underbody rail. 5. The sealing device for a door frame of a vehicle body according to claim 4, wherein the inner member is a door frame reinforcement member. 6 . The sealing device for a door frame of a vehicle body according to claim 5 , wherein the side panel and the door frame reinforcement member are respectively connected to an outer side and an inner side of the underbody rail by rivets. 7. The sealing device for a door frame of a vehicle body according to claim 6, wherein at least one of the side panel, the door frame reinforcement member, the rivet and the underbody rail is composed of Made of aluminum material. 8 . The sealing device for a vehicle body door frame according to any one of claims 1 to 6 , wherein the vehicle body door frame is a front body door frame or a rear body door frame of an automobile. 9. The sealing device for a vehicle body door frame according to any one of claims 1 to 6, wherein the vehicle body door frame is a trunk frame of an automobile.