CN218662054U - D post exocoel seal structure and car - Google Patents

Abstract

The utility model provides a D post exocoel seal structure and car belongs to the automotive sealing technique field, and seal structure includes: the first sealing body is arranged in the first cavity and partitions the first cavity along the vertical direction of the vehicle body; the first sealing body comprises a sealing framework and a foaming adhesive layer surrounding the sealing framework, the shape of the peripheral side face of the sealing framework is along with the cross section of the first cavity, the cross section is perpendicular to the vertical direction of the vehicle body, and a buckle for clamping the D column is arranged on the side face of the sealing framework. The second sealing body is arranged in the second cavity and is in butt joint with the first sealing body, and the second sealing body is a foaming rubber strip matched with the second cavity. The utility model provides a D post exocoel seal structure to the exocoel of wide and narrow difference, through being divided into first seal and second seal two parts with seal structure, when satisfying sealed effect, has stopped the cracked problem of weak position from wide and narrow transition, has reduced the disability rate.

Description

D post exocoel seal structure and car

Technical Field

The utility model belongs to the technical field of the car is sealed, concretely relates to D post exocoel seal structure and have this kind of seal structure's car.

Background

Modern mainstream car body design adopts a single-body structure and is formed by welding an inner thin-wall steel plate and an outer thin-wall steel plate. The side wall of the automobile body has a bypass cavity structure, so that a high-speed airflow field can be generated in a side wall cavity channel when the automobile runs at high speed; the high-speed airflow field of the side wall can generate cavity wind noise and transmit noise outside the vehicle, so the airflow of the cavity of the side wall must be blocked to inhibit the wind noise. The reasonable cavity sealing system can effectively separate air flow, realizes good sealing effect, and can reduce harsh noise to a great extent, so that the interior of the vehicle is quieter, and the riding comfort is improved.

With the increasing individuation and differentiation of consumer demands, the automobile model also begins to highlight the characteristics of individuation and differentiation, and the automobile body appearance with a wide D column gradually becomes popular. Because the whole vehicle needs to meet the requirements of NVH related indexes, the D column of the wide D column type vehicle body is designed into a special-shaped cavity structure with alternate width and narrow width.

Aiming at the special-shaped cavity structure with alternate width and width, the integrated sealing structure is adopted, the packaging space is large, particularly in the processes of production, assembly, sequence conversion, transportation and installation of the sealing colloid, the width transition region is easy to break, the product is easily scrapped and the sealing is ineffective, the production cost of enterprises is increased, and discomfort in riding is caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a D post exocoel seal structure and car aims at solving the easy cracked problem that takes place of D post exocoel seal structure width transition region.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a D post exocoel seal structure, set up in the exocoel that D post and side wall planking formed, wherein, form first cavity between the D post inner panel of side wall planking with the D post, form the second cavity of intercommunication the first cavity between the D post reinforcing plate of side wall planking with the D post, the width of first cavity is greater than the width of second cavity, the direction of width is unanimous with the left and right direction of automobile body, seal structure includes:

the first sealing body is arranged in the first cavity and partitions the first cavity along the vertical direction of the vehicle body; the first sealing body comprises a sealing framework and a foaming adhesive layer surrounding the periphery of the sealing framework, the shape of the peripheral side surface of the sealing framework is along the cross section of the first cavity, the cross section is vertical to the vertical direction of the vehicle body, and a buckle for clamping the D column is arranged on the side surface of the sealing framework; and

a second sealing body; the second sealing body is a foaming rubber strip matched with the second cavity.

With reference to the first aspect, in a possible implementation manner, the sealing framework is a rubber-sandwiched plate framework, annular steps are arranged around the rubber-sandwiched plate framework, the upper end face of each annular step is lower than the upper end face of the rubber-sandwiched plate framework, and the foaming adhesive layer is arranged on the annular steps.

With reference to the first aspect, in a possible implementation manner, the upper end surface of the foam adhesive layer is lower than the upper end surface of the plywood framework, and a part of the side surface of the plywood framework, which protrudes above the foam adhesive layer, forms a stop surface when the foam adhesive layer expands.

With reference to the first aspect, in a possible implementation manner, the side surface of the plywood-sandwiched framework is further provided with an upper limiting block.

With reference to the first aspect, in a possible implementation manner, a positioning notch is further formed in the annular step, and a positioning protrusion inserted into the positioning notch is arranged below the foaming adhesive layer; wherein, the positioning notch is positioned below the upper limiting block.

With reference to the first aspect, in a possible implementation manner, the side surface of the rubber-sandwiched plate skeleton is further provided with a lower limiting block, the lower limiting block is arranged on the side surface of the annular step, and the upper end surface of the lower limiting block is flush with the upper end surface of the annular step.

Combine the first aspect, in a possible implementation, the side of doubling board skeleton still is equipped with down the limiting plate, be equipped with on the foaming adhesive layer with the lower spacing jack catch of limiting plate joint down, the lower spacing jack catch has the adaptation the joint interface of limiting plate down, the opening of joint interface is down.

With reference to the first aspect, in a possible implementation manner, the lower limiting plate extends to the buckle to form a part of the buckle; wherein the snap is disposed on a side of the annular step.

With reference to the first aspect, in a possible implementation manner, a downwardly extending boss is further disposed at one end, butted with the second sealing body, of the plywood framework.

The utility model provides a D post exocoel seal structure, compared with the prior art, beneficial effect lies in: aiming at outer cavities with different widths, through reasonable design, the sealing structure is manually disconnected in a width transition region, namely the sealing structure is divided into a first sealing body and a second sealing body, the first sealing body needs to separate a first cavity with larger width, a framework support needs to be arranged, and a foaming adhesive layer is arranged on the periphery of the first sealing body, so that the foaming adhesive layer expands and foams to seal gaps among the side wall outer plate, the D column and the first sealing body when the automobile body is baked in the later period, and the sealing effect is achieved; for the second cavity with narrower width, a framework does not need to be arranged, a foaming adhesive tape is directly adopted, and when the automobile body is baked in the later stage, the foaming adhesive tape expands and foams to block a gap between the side wall outer plate and the D column reinforcing plate of the D column, so that the sealing effect is achieved; according to the sealing structure with the split structure, the first cavity and the second cavity are disconnected in the wide-narrow transition region, the problem that the integrated sealing structure is easy to break from the wide-narrow transition weak part is solved on the premise that the sealing effect is guaranteed, the product percent of pass of the sealing structure can be improved, the rejection rate is reduced, and therefore the production cost is reduced.

In a second aspect, the embodiment of the present invention further provides an automobile, which has the D-pillar outer cavity sealing structure.

The embodiment of the utility model provides an automobile owing to adopted this kind of split type seal structure, can avoid the cracked risk of seal structure, when guaranteeing sealed effect, can promote seal structure's product percent of pass, reduces the disability rate to reduction in production cost.

Drawings

Fig. 1 is a schematic view (overlooking) of an installation structure of a D-column outer cavity sealing structure provided by an embodiment of the present invention;

fig. 2 is a schematic top view of a D-column outer cavity sealing structure provided in an embodiment of the present invention;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is a sectional view taken along line C-C of FIG. 2;

fig. 6 is a schematic perspective view (overlook) of a D-column outer cavity sealing structure provided in an embodiment of the present invention;

fig. 7 is a schematic perspective view (bottom view) of a D-column outer cavity sealing structure provided in an embodiment of the utility model;

fig. 8 is a schematic perspective view (top view) of a D-column outer cavity sealing structure provided in an embodiment of the present invention;

fig. 9 is a schematic exploded structural view (top view) of a D-column outer cavity sealing structure according to an embodiment of the present invention;

fig. 10 is a schematic exploded structural view (top view) of a D-column outer cavity sealing structure provided in an embodiment of the present invention;

description of reference numerals:

1. a D-pillar reinforcement plate; 2. d column inner plates; 3. a side outer plate; 4. a plywood frame; 41. a strip hole; 42. buckling; 43. an upper limit block; 44. a boss; 45. a lower limiting block; 46. positioning the notch; 47. a lower limiting plate; 48. an annular step; 5. a foamed glue layer; 51. positioning the bump; 52. a lower limiting jaw; 6. a first cavity; 7. a second cavity; 8. a second seal body.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the directions "up, down, inside and outside" in the present embodiment are consistent with the up-down direction and the inside-outside direction of the vehicle body, and are shown in fig. 1 to 3, which are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 10, a D-pillar outer cavity sealing structure according to the present invention will now be described. The D-pillar outer cavity sealing structure is arranged in an outer cavity formed by a D pillar and a side-wall outer plate 3, wherein a first cavity 6 is formed between the side-wall outer plate 3 and a D-pillar inner plate 2 of the D pillar, a second cavity 7 communicated with the first cavity 6 is formed between the side-wall outer plate 3 and a D-pillar reinforcing plate 1 of the D pillar, the width of the first cavity 6 is larger than that of the second cavity 7, and the width direction is consistent with the left-right direction of a vehicle body.

The seal structure includes: the first sealing body is arranged in the first cavity 6 and partitions the first cavity 6 along the vertical direction of the vehicle body; the first sealing body comprises a sealing framework and a foaming adhesive layer 5 surrounding the sealing framework, the shape of the peripheral side face of the sealing framework is along with the cross section of the first cavity 6, the cross section is perpendicular to the vertical direction of the vehicle body, and a buckle 42 for clamping the D column is arranged on the side face of the sealing framework.

The second sealing body 8 is arranged in the second cavity 7 and is in butt joint with the first sealing body, and the second sealing body 8 is a foaming rubber strip matched with the second cavity 7.

The utility model provides a D post exocoel seal structure compares with prior art, and beneficial effect lies in:

(1) Aiming at outer cavities with different widths, the sealing structure is manually broken in a width transition region through reasonable design, namely the sealing structure is divided into a first sealing body and a second sealing body 8, the first sealing body needs to partition a first cavity 6 with larger width, a framework support needs to be arranged, and a foaming adhesive layer 5 is arranged on the periphery of the first sealing body, so that the foaming adhesive layer 5 expands and foams to block gaps among a side wall outer plate 3, a D column and the first sealing body when the automobile body is baked in the later period, and the sealing effect is achieved; to the narrower second cavity 7 of width, need not set up the skeleton, directly adopt the foaming adhesive tape, when the automobile body later stage is toasted, the foaming adhesive tape inflation foaming, gap between the D post reinforcing plate 1 of shutoff side wall planking 3 and D post reaches sealed effect. For example, for the D-pillar position, the door opening and closing sound, the tire noise, the oil filling opening and closing sound and the like can be effectively prevented from being transmitted into the member bin, and the riding comfort is improved.

(2) According to the sealing structure with the split arrangement, the first cavity 6 and the second cavity 7 are disconnected in the width transition region, the problem that the integrated sealing structure is easy to break from the weak part in the width transition is solved on the premise that the sealing effect is guaranteed, the product percent of pass of the sealing structure can be improved, the rejection rate is reduced, and therefore the production cost is reduced.

(3) This kind of seal structure of components of a whole that can function independently setting can optimize the packing scheme, and seal structure is mainly that first seal occupies the packing volume, and the foaming adhesive tape can be ignored for former occupation volume, can increase the effective utilization of packing scheme, and corresponding single packing cost, cost of transportation, storage cost etc. all can corresponding reduction.

(4) Because the volume of the sealing framework is reduced, the sealing framework and the cavity of the foaming glue injection mold can be correspondingly reduced, the foaming glue strip for the second cavity 7 does not need to develop the mold, and the overall development cost is correspondingly reduced.

In the embodiment, the first sealing body is fixed on the vehicle body by virtue of the buckle 42 on the sealing framework; the foaming adhesive tape is fixed on the vehicle body through the adhesive layer.

According to the attached drawing 1 of the embodiment, the width difference between the first cavity 6 and the second cavity 7 is large, the reasonable cavity sealing structure can effectively separate air flow, good sealing effect is achieved, and meanwhile, the harsh noise can be greatly reduced, so that the interior of the vehicle is quiet, and the riding comfort is improved. The cavity is plugged by considering the generation and distribution of noise inside the vehicle body, and separating, absorbing and weakening all the noise as much as possible, so that the final purposes of sound insulation, noise reduction and improvement of driving comfort are achieved; meanwhile, the investment economy and the light weight requirement of the vehicle body are considered, and the noise of the cab position can be reduced by 2 dB-4 dB through reasonable arrangement.

In the present embodiment, the good sealing effect is achieved, and the economical efficiency of investment and the light weight of the vehicle body are considered. The sealing framework is of an upward-convex and downward-concave structure, and the lower portion of the sealing framework is provided with the sinking groove, so that the lightweight design concept is embodied.

The purpose of selecting the foaming glue in the embodiment is as follows: because the minimum clearance of the outer cavity of the D column can be designed to be 6mm (namely the width of the second cavity 7 in the left and right directions of the vehicle body), in order to ensure the circulation of the electrophoresis liquid (the circulation of the electrophoresis liquid needs the clearance requirement of 3 mm), the initial design of the foaming rubber strip can only be about 3mm, the foaming rubber strip is installed in the second cavity 7, the circulation clearance of 3mm needs to be reserved for the electrophoresis liquid, and a sealing rubber strip made of foaming material is also needed to be adopted, the circulation clearance is filled by expanding and foaming after the vehicle body is baked in the later period, the sealing effect is achieved, and if the sealing rubber strip made of foaming material is not adopted, the sealing rubber strip is directly adopted to seal and block the second cavity 7, so that the circulation of the electrophoresis liquid cannot be ensured; similarly, the sealing frame and the inner and outer metal plates need to be reserved for more than 3mm to ensure the circulation of the electrophoretic fluid, so the material with the expansion foaming function also needs to be selected.

The foaming glue adopts a foaming body which can be foamed and expanded after being heated, so that the foaming glue can be expanded and filled in gaps after being subjected to electrophoresis heating, and a compact micro-bubble structure is formed, thereby achieving a good noise absorption function.

In some embodiments, as shown in fig. 9 and 10, the sealing frame is a plywood frame 4, an annular step 48 is disposed around the plywood frame 4, an upper end surface of the annular step 48 is lower than an upper end surface of the plywood frame 4, and the foaming adhesive layer 5 is disposed on the annular step 48. Wherein, a gap for the circulation of electrophoretic fluid is arranged between the side surface of the annular step 48 and the surrounding side wall outer plate 3 and D column inner plate 2; the side of the foam layer 5 does not protrude beyond the side of the annular step 48. The annular step 48 supports the foam layer 5. The rubber-sandwiched plate is used as a framework to separate an upper circulation channel and a lower circulation channel of the outer cavity, so that a good sealing effect can be ensured on the whole.

It should be further noted that the rubber-sandwiched plate framework 4 is further provided with a strip hole 41 for the circulation of the electrophoresis liquid, the rubber-sandwiched plate uses the strip hole 41 as a boundary, the arrangement of the annular step 48 is divided into two raised platforms, the foam rubber layer 5 also surrounds the two raised platforms, when the heating baking is carried out in the later period, the foam rubber layers 5 on the two sides of the strip hole 41 collide with each other for foaming, the strip hole 41 is blocked, and finally, an effective partition for the circulation of the external cavity air is formed.

In some embodiments, as shown in fig. 6 to 10, the upper end surface of the foam layer 5 is lower than the upper end surface of the plywood frame 4, and the side surface of the plywood frame 4 protruding above the foam layer 5 forms a stop surface when the foam layer 5 expands. The raised platform is higher than the foaming adhesive layer 5 to form a stop surface for controlling the foaming direction, so that the foaming adhesive layer 5 is foamed towards the side wall outer plate 3, the D column inner plate 2 and the D column reinforcing plate 1, and is not foamed towards the middle direction of the plywood frame 4, thereby ensuring the sealing of the gap.

In some embodiments, as shown in fig. 6 to 10, the side of the plywood frame 4 is further provided with an upper limiting block 43. The upper limiting block 43 has an upper limiting effect on the foam rubber layer 5, and the foam rubber layer is prevented from rotating upwards.

In some embodiments, as shown in fig. 10, a positioning notch 46 is further formed on the annular step 48, and a positioning protrusion 51 inserted into the positioning notch 46 is provided below the foam layer 5; wherein, the positioning notch 46 is positioned below the upper limiting block 43 and plays a role of positioning the foam rubber layer 5.

In some embodiments, as shown in fig. 10, the side surface of the plywood frame 4 is further provided with a lower limiting block 45, the lower limiting block 45 is arranged on the side surface of the annular step 48, and the upper end surface of the lower limiting block 45 is flush with the upper end surface of the annular step 48. The lower limiting block 45 plays a role in limiting the foaming adhesive layer 5. The lower limiting block 45 and the upper limiting block 43 are arranged on the upper end face and the lower end face of the plywood frame 4, so that the foamed rubber layer 5 can be prevented from rotating up and down, and the foamed rubber layer 5 is guaranteed to be tiled on the annular step 48 of the plywood frame 4.

In some embodiments, as shown in fig. 10, a lower limiting plate 47 is further disposed on a side surface of the plywood frame 4, a lower limiting claw 52 engaged with the lower limiting plate 47 is disposed on the foam rubber layer 5, the lower limiting claw 52 has a fastening interface adapted to the lower limiting plate 47, and an opening of the fastening interface faces downward. The lower limiting claw 52 is matched with the lower limiting plate 47 to limit the foam rubber layer 5.

As shown in FIG. 10, in some embodiments, the lower retainer plate 47 extends over the catch 42, forming a portion of the catch 42; with the catch 42 being disposed on the side of the annular step 48. The lower limiting plate 47 and the buckle 42 are integrated into a whole, so that the structure is simplified, and the design of a die is simplified.

In some embodiments, as shown in fig. 5-10, the end of the plywood frame 4 abutting the second sealing body 8 is further provided with a downwardly extending boss 44. A gap of 2mm is reserved at the butt joint part of the plywood framework 4 and the foaming adhesive tape, so that the foaming adhesive tape and the plywood framework 4 are not interfered during assembly; the gap generated by the method needs to be sealed, and the boss 44 extending downwards is adopted to control the foaming direction of the foaming rubber layer 5 at the butt joint part, so that the continuity of expansion connection between the foaming rubber layer 5 and the foaming rubber strip after the foaming rubber layer expands along the gap between the foaming rubber layer and the foaming rubber layer is ensured; wherein, the foaming amount of the foaming rubber layer 5 is controlled by adopting foaming rubber with the thickness of 3mm, and the foaming rate is 900 percent or more.

In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.

Based on the same inventive concept, the embodiment of the application also provides an automobile which is provided with the D-column outer cavity sealing structure.

The embodiment of the utility model provides an automobile owing to adopted this kind of split type seal structure, can avoid the cracked risk of seal structure, when guaranteeing sealed effect, can promote seal structure's product percent of pass, reduces the disability rate to reduction in production cost.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A D-column outer cavity sealing structure is arranged in an outer cavity formed by a D-column and a side-wall outer plate (3), wherein a first cavity (6) is formed between the side-wall outer plate (3) and a D-column inner plate (2) of the D-column, a second cavity (7) communicated with the first cavity (6) is formed between the side-wall outer plate (3) and a D-column reinforcing plate (1) of the D-column, the width of the first cavity (6) is greater than that of the second cavity (7), and the direction of the width is consistent with the left and right directions of a vehicle body, and the sealing structure is characterized by comprising:

the first sealing body is arranged in the first cavity (6) and partitions the first cavity (6) along the vertical direction of the vehicle body; the first sealing body comprises a sealing framework and a foaming adhesive layer (5) surrounding the periphery of the sealing framework, the shape of the peripheral side surface of the sealing framework is formed along the cross section of the first cavity (6), the cross section is vertical to the vertical direction of the vehicle body, and a buckle (42) for clamping the D column is arranged on the side surface of the sealing framework; and

a second sealing body (8); the second sealing body (8) is a foaming rubber strip which is matched with the second cavity (7).

2. The D-column outer cavity sealing structure according to claim 1, wherein the sealing framework is an plywood framework (4), an annular step (48) is arranged around the plywood framework (4), the upper end face of the annular step (48) is lower than the upper end face of the plywood framework (4), and the foam rubber layer (5) is arranged on the annular step (48).

3. The D-column external cavity sealing structure according to claim 2, wherein the upper end surface of the foam adhesive layer (5) is lower than the upper end surface of the plywood frame (4), and the side surface of the plywood frame (4) protruding above the foam adhesive layer (5) forms a stop surface when the foam adhesive layer (5) expands.

4. The D-column external cavity sealing structure according to claim 2, wherein the side of the plywood frame (4) is further provided with an upper limiting block (43).

5. The D-column outer cavity sealing structure according to claim 4, wherein a positioning notch (46) is further formed in the annular step (48), and a positioning bump (51) inserted into the positioning notch (46) is arranged below the foam rubber layer (5); wherein the positioning notch (46) is located below the upper limiting block (43).

6. The D-column outer cavity sealing structure according to claim 4, wherein a lower limiting block (45) is further arranged on the side surface of the plywood frame (4), the lower limiting block (45) is arranged on the side surface of the annular step (48), and the upper end surface of the lower limiting block (45) is flush with the upper end surface of the annular step (48).

7. The D-column external cavity sealing structure according to claim 2, wherein a lower limiting plate (47) is further arranged on the side surface of the rubber-sandwiched plate framework (4), a lower limiting claw (52) clamped with the lower limiting plate (47) is arranged on the foamed rubber layer (5), the lower limiting claw (52) is provided with a clamping interface matched with the lower limiting plate (47), and the opening of the clamping interface faces downwards.

8. The D-column outer chamber sealing structure according to claim 7, wherein the lower limit plate (47) extends onto the catch (42) to constitute a part of the catch (42); wherein the catch (42) is arranged laterally of the annular step (48).

9. The D-column external cavity sealing structure according to claim 2, wherein the end of the plywood frame (4) abutting against the second sealing body (8) is further provided with a downward extending boss (44).

10. An automobile having a D-column external cavity sealing structure according to any one of claims 1 to 9.

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