Lower clamping strip for connecting vehicle glass and matching part, vehicle window glass assembly comprising lower clamping strip and vehicle

Abstract

The invention relates to a lower clip strip (10) for connecting a vehicle glass (110) to a mating part (90), comprising a support rib (20) for positioning a positioning body (60) of the mating part, a first connecting region (30) for connecting the lower clip strip (10) to the vehicle glass (110), a second connecting region (40) for connecting the lower clip strip (10) to the mating part (90), and a sealing region (50) for sealing the lower clip strip (10) to the vehicle glass (110). The second connecting area (40) is used for connecting the lower clamping strip (10) and a matching component (90), the sealing area (50) is used for sealing and attaching vehicle glass (110) and the matching component (90), and the lower clamping strip is characterized in that the part, used for making contact with a positioning body (60) of the matching component (90), of the bearing rib (20) is a first contact part (21), the self-friction coefficient of the first contact part (21) is a first self-friction coefficient, and the first self-friction coefficient is 0.35 or below; and / or the portion, used for making contact with the positioning body (60) of the matching component (90), of the second connecting area (40) is a second contact portion (43), the self-friction coefficient of the second contact portion (43) is a second self-friction coefficient, and the second self-friction coefficient is 0.35 or below. According to the lower clamping strip (10), the matching part (90) can be conveniently and rapidly installed without large force, the matching part (90) is stable after being installed, and the matching part (90) can be conveniently and rapidly disassembled when needing to be disassembled.

Description

Technical Field

[0001] The invention relates to a lower clip strip for connecting vehicle glass and a matching component, and a vehicle window glass assembly and a vehicle comprising the lower clip strip. Background Art

[0002] Automobile windows (e.g. windshields) often have various covering components underneath, such as water boxes or water tanks that receive water running down the glass and drain it laterally. In order to fix and seal a mating component at the lower edge of the window pane, an extruded profile can be used, for example, which has a lower clip that is fixedly connected to the window pane at the edge and has a positioning area for mounting and removing the mating component.

[0003] The covering parts of automobile window glass, such as water tanks or sinks, often need to be installed and removed for maintenance purposes, such as to facilitate filter replacement. Therefore, these factors put forward requirements for the installation, fixation and removal of matching parts, that is, during installation, there will be no inconvenience or damage to related components due to excessive resistance required for installation; after installation, it can always be safely and reliably fixed to the lower clip, and will not loosen or detach during normal vehicle driving or other mechanical or thermal loads; when it needs to be removed, it will not cause inconvenience or damage to related components due to excessive force required.

[0004] US8991893 discloses a profile connecting a vehicle window glass to a water tank, which has a first section, a second section and at least one seal. A positioning member is provided in a positioning recess formed by the second section and the supporting rib to position the rib to which the water tank is connected, thereby fixing the water tank. Summary of the invention

[0005] At present, the prior art generally uses polyamide PA66 as the material of the lower clamping strip and the material of the positioning body of the matching component that interacts with the lower clamping strip. When installing the matching component, a large force is required, which is not conducive to achieving the purpose of quick and convenient installation. In order to solve the problems in the prior art, the present invention provides a lower clamping strip for connecting vehicle glass and a matching component.

[0006] The present invention relates to a lower clamping strip for connecting vehicle glass and a matching component. The lower clamping strip comprises a bearing rib, a first connecting area, a second connecting area and a sealing area. The bearing rib is used to position a positioning body of the matching component. The first connecting area is used to connect the lower clamping strip and the vehicle glass. The second connecting area is used to connect the lower clamping strip and the matching component. The sealing area is used to seal and stick the vehicle glass and the matching component tightly. The invention is characterized in that the portion of the bearing rib used to contact the positioning body of the matching component is a first contact portion, and the self-friction coefficient of the first contact portion is a first self-friction coefficient, which is less than 0.35; and / or the portion of the second connecting area used to contact the positioning body of the matching component is a second contact portion, and the self-friction coefficient of the second contact portion is less than 0.35.

[0007] The present invention further relates to a vehicle window glass assembly, characterized in that it comprises a vehicle window glass and the lower clip strip of the present invention, wherein the lower clip strip is fixed to the vehicle window glass via an adhesive layer on the surface of the first connecting region.

[0008] The present invention further relates to a vehicle, characterized in that it comprises the lower clip strip of the present invention or the vehicle window glass assembly of the present invention.

[0009] Through the lower clamping strip of the present invention, the matching components can be installed with less force and firmly fixed in the lower clamping strip, thereby achieving more convenient and labor-saving installation and reducing component damage. At the same time, the mixed material with a smaller friction coefficient of the present invention also ensures that the force required for disassembly of the matching components is within an appropriate range, making the disassembly of the matching components also convenient and quick.

[0010] In the present invention, compared with, for example, using high-cost ultra-high molecular weight polyethylene, carbon fiber or polytetrafluoroethylene alone, a mixture of polyamide and ultra-high molecular weight polyethylene, a mixture of polyamide and carbon fiber, or a mixture of polyamide and polytetrafluoroethylene can obtain a lower friction coefficient at a lower cost. In addition, the use of the mixed material used in the present invention can reduce the introduction force when the matching component is installed on the lower card strip and the extraction force when removing the matching component from the lower card strip during disassembly. The use of the lower card strip and its corresponding materials of the present invention can also take into account the protection of the matching component and the lower card strip itself during installation and disassembly, such as the hardness, strength, and wear resistance of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram showing the relationship between the force required for installing the lower clamping strip and the friction coefficient between the lower clamping strip and the positioning body of the matching component according to an embodiment of the present invention.

[0012] Figure 2A-2DThey are schematic diagrams of simulation of deformation of the lower clamping bar at different insertion depths (d) of the mating component when the friction coefficient (COF) of the contact material between the lower clamping bar and the positioning body of the mating component is 0.1 according to one embodiment of the present invention. Figure 2E-2H They are schematic diagrams of deformation simulation of the lower clamping bar at different insertion depths (d) of the mating component when the friction coefficient (COF) of the contact material between the lower clamping bar and the positioning body of the mating component is 0.3 according to one embodiment of the present invention.

[0013] Figure 3 1 is a side view of a lower clamping strip in an installed state according to an embodiment of the present invention.

[0014] Figure 4 yes Figure 3 A side view of a lower clip strip according to an embodiment of the present invention is shown.

[0015] Description of Figure Numbers:

[0016] Lower clip strip: 10, window glass: 110, load-bearing rib: 20, first connection area: 30, second connection area: 40, sealing area: 50, positioning body: 60, positioning area: 70, elastic sheet: 80, matching component: 90, first contact portion (the portion on the load-bearing rib that contacts the positioning body): 21, reinforcement pad (for the load-bearing rib): 22, positioning unit: 23, adhesive layer: 31, reinforcement pad (for the first connection area and / or the second connection area): 3 2. The connecting portion where the second connecting area is connected to the bearing rib: 41. The elastic leg: 42. The second contact portion (the contact portion with the positioning body on the second connecting area): 43. The inclined surface (on the elastic leg): 44. The side protrusion (on the side of the hollow positioning area of ​​the elastic leg): 45. The supporting rib: 46. The nose-shaped edge (on the positioning body for forming a mating state with the side protrusion): 61. The nose-shaped edge (on the positioning body for forming a mating state with the positioning unit): 62. The embedding interface: 71. DETAILED DESCRIPTION

[0017] General Definitions and Terminology

[0018] Unless otherwise indicated, all publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the event of a conflict, the definitions provided herein shall prevail.

[0020] Unless otherwise stated, all percentages, parts, ratios, etc. are by weight. It will be appreciated by those skilled in the art that the sum of all components in the composition can be suitably 100%. When providing quantity, concentration or other values ​​or parameters as scope, preferred range or preferred upper limit and lower limit or specific value, it should be understood as specifically disclosing all ranges formed by paired values ​​from any upper limit range or preferred value and any lower limit range or preferred value, and no matter whether scope is disclosed individually. Unless otherwise stated, when numerical range is quoted herein, described scope refers to and includes its endpoints and integers and fractions in all such scopes.

[0021] The term "optional" or "optionally" as used herein means that the event or situation described subsequently may or may not occur, and the description includes the occurrence of the event or situation and the non-occurrence of the event or situation, and also includes the situation where the contents described subsequently are arbitrarily selected.

[0022] The terms "include", "comprising", "having", "containing" or "involving" and other variations thereof herein are inclusive or open-ended and do not exclude other unlisted elements or method steps. It will be understood by those skilled in the art that the above terms such as "comprising" encompass the meaning of "consisting of". The expression "consisting of" excludes any element, step or ingredient not specified. The expression "consisting essentially of" means that the scope is limited to the specified elements, steps or ingredients, plus the optional presence of elements, steps or ingredients that do not substantially affect the basic and new features of the claimed subject matter. It should be understood that the expression "comprising" encompasses the expressions "consisting essentially of" and "consisting of". The term "selected from..." refers to one or more elements in the groups listed later, independently selected, and may include combinations of two or more elements therein.

[0023] As used herein, the terms "one or more" or "at least one" refer to one, two, three, four, five, six, seven, eight, nine or more.

[0024] The term "and / or" as used herein encompasses "and" and "or". A plurality of elements, components or steps defined with "and / or" represent any one of the elements, components or steps and any combination thereof. For example, A and / or B encompasses A, B and A+B; A, B and / or C encompasses A, B, C, A+B, A+C, B+C and A+B+C.

[0025] Unless otherwise specified, the terms "combination thereof", "any combination thereof" and "mixture thereof" mean a multi-component mixture of the elements, such as a mixture of two, three, four and up to the maximum possible multi-component mixture.

[0026] In addition, if the number of parts or components of the present invention is not indicated before, it means that there is no limit to the number of occurrences (or existence) of the parts or components. Therefore, it should be interpreted as including one or at least one, and the singular form of the parts or components also includes the plural form, unless the numerical value obviously represents the singular.

[0027] In this document, unless otherwise specified, the expressions "first", "second", etc. are only used to distinguish various elements, components or steps, and do not limit them to be performed in such a sequence or quantity, nor do they exclude the existence of more elements, components or steps not listed, such as "third" or "fourth". The elements, components or steps defined by the expressions "first", "second", etc. may be the same or different.

[0028] As used herein, "plurality" means two or more than two, unless otherwise specifically defined. Unless the context clearly indicates, "a" or "an" may include singular references as well as plural references.

[0029] In this document, unless otherwise specified, the expressions "first", "second", etc. are only used to distinguish various elements, components or steps, and do not limit them to be performed in such a sequence or quantity, nor do they exclude the existence of more elements, components or steps not listed, such as "third" or "fourth". The elements, components or steps defined by the expressions "first", "second", etc. may be the same or different.

[0030] In this document, unless otherwise specifically defined, the terms "installation", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this document can be understood according to the specific circumstances.

[0031] As used herein, the term "self-friction coefficient" refers to the coefficient of friction between two objects when the two objects are made of the same material.

[0032] As used herein, the term "elastic modulus" refers to the stress in a uniaxial stress state divided by the strain in that direction.

[0033] The term "Poisson's ratio" used in this article refers to the ratio of the transverse normal strain to the axial normal strain when the material is subjected to unidirectional tension or compression, and is an elastic constant reflecting the transverse deformation of the material. The term "ultra-high molecular weight polyethylene (UHMWPE)" used in this article generally refers to unbranched linear polyethylene with a molecular weight of more than 1.5 million.

[0034] The term "carbon fiber" used herein generally refers to high-strength and high-modulus fibers with a carbon content of more than 90%.

[0035] The present invention uses the lower clip 10 to connect the window glass 110 with the matching component 90. For example, Figure 3 As shown, the vehicle window glass 110 is, for example, a windshield made of laminated safety glass, which is mounted on a car body. When the matching component 90 is in the installed position, the lower edge of the vehicle window glass 110 and the upper edge of the matching component 90 are respectively connected to the sealing area 50 of the lower clip 10, so that a substantially smooth and flush surface is formed between the vehicle window glass 110 and the matching component 90.

[0036] In this article, when the concept of "upper" or "lower" is involved, it refers to the upper or lower position in the spatial sense when the vehicle is normally used or placed and the window glass, matching parts and other components are normally installed. Figure 3 As shown, the vehicle window glass 110 is located above the mating component 90 .

[0037] Herein, the term "introduction depth (d)" refers to the distance from the upper edge of the mating component 90 to the initial position of the installation along the installation direction when the mating component 90 is introduced into the lower clamping strip 10 of the present invention. Figure 2B-Figure 2D or Figure 2F-2H As shown, the dotted line represents the initial position of the mating component 90 when it is installed, and d represents the distance from the upper edge of the positioning body 60 of the mating component 90 to the initial position along its installation direction (arrow direction).

[0038] The lower clamping strip 10 is preferably an extruded profile. Except that the material of the bearing rib 20 and the contact part of the second connection area 40 and the matching component positioning body 60 is a mixed material, the lower clamping strip 10 can include one or more plastics (thermoplastic plastics or thermosetting plastics) or elastomers or rubber materials of appropriate hardness, including polyamide (PA), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), thermoplastic elastomer (TPE), ethylene propylene diene monomer (EPDM) and sponge rubber, or any combination thereof. By selecting the extruded profile, the lower clamping strip 10 of the present invention can provide a suitable force during use. For example, during the installation and removal of the matching component 90, the lower clamping strip 10 can adjust the appropriate force to be used according to the selected material properties.

[0039] like Figure 3 As shown, the first connection area 30 of the lower clip strip 10 can be fixed on the vehicle window glass 110 through the adhesive layer 31 on its surface. The lower clip strip 10 is pressed onto the back side of the vehicle window glass along the lower edge of the glass by the adhesive layer 31 and bonded to the back side.

[0040] like Figure 3As shown, the second connection area 40 of the lower clamping strip 10 forms a hollow positioning area 70 with the load-bearing rib 20 and a positioning body 60 for accommodating the matching component 90. The matching component 90 can interact with the lower clamping strip 10 through its positioning body 60, so that the matching component 90 is easy to install, fix or remove. The second connection area 40 includes a connection portion 41 and an elastic leg 42 where the second connection area 40 is connected to the load-bearing rib 20.

[0041] like Figure 3 As shown, the elastic leg 42 is provided with a side convex portion 45 on one side of the hollow positioning area 70. The side convex portion 45 of the elastic leg 42 forms a chimeric state with the nose-shaped edge 61 on the positioning body 60 at the positioning position of the positioning body 60, which is suitable for positioning the positioning body 60 in the hollow positioning area 70. By forming a chimeric state with the nose-shaped edge 61 on the positioning body 60, the stability of the matching component 90 in the installed state can be more firmly maintained. In order to better guide the positioning body 60 of the matching component 90 into the hollow positioning area 70, the elastic leg 42 is provided with an inclined surface 44. The bearing rib 20 extends toward the hollow positioning area 70 and forms a convex portion as a positioning unit 23, which forms a chimeric state with the nose-shaped edge 62 on the positioning body 60 at the positioning position of the positioning body 60, which is suitable for positioning the positioning body 60 in the hollow positioning area 70. By forming an interlocking state between the positioning unit 23 and the nose-shaped edge 62 on the positioning body 60, the stability of the matching component 90 in the installed state can be more firmly maintained.

[0042] like Figure 3 As shown, the elastic sheet 80 contacts the matching component 90 when it is in the positioning position, and provides a buffering and supporting positioning function, which is suitable for fixing the matching component (90) in a suitable position. The elastic sheet 80 can further maintain the stability of the matching component 90 in the installed state by supporting and positioning the matching component 90.

[0043] like Figure 4 As shown, the hollow positioning area 70 is defined by the elastic leg 42 and the bearing rib 20 between the first connection area 30 and the second connection area 40 of the lower clamping strip 10, wherein the elastic leg 42 can be substantially L-shaped, U-shaped or hook-shaped. The bearing rib 20 extends in the direction of one side of the hollow positioning area 70 and forms a convex portion as a positioning unit 23. The positioning unit 23 and the elastic leg 42 together define the embedding interface 71 of the positioning area 70. The space size of the positioning area 70 can be adjusted accordingly through the elastic leg 42, and the embedding interface 71 can be adjusted to a suitable opening or shape, wherein the elastic leg 42 can be substantially L-shaped, U-shaped or hook-shaped. The fitting component 90 can be fixed in the lower clamping strip 10 of the present invention through the embedding interface 71, and the fitting component 90 can be installed within a suitable angle deviating from the direction perpendicular to the embedding interface 71.

[0044] In one embodiment, the width of the embedding interface 71 is 1.5-1.9mm. In one embodiment, the width of the embedding interface 71 is 1.5mm. In one embodiment, the width of the embedding interface 71 is 1.6mm. In one embodiment, the width of the embedding interface 71 is 1.7mm. In one embodiment, the width of the embedding interface 71 is 1.8mm. In one embodiment, the width of the embedding interface 71 is 1.9mm. By adjusting the width of the appropriate embedding interface 71, it is suitable to adjust the required force of the lower card strip 10 of the present invention when in use. For example, when it is necessary to install the matching component 90, by adjusting the width of the embedding interface 71, the size of the installation force required for installing the matching component 90 can be adjusted. When the matching component 90 is installed, the width of the embedding interface 71 is adjusted to adjust the stability of the matching component 90 during use. When the matching component 90 needs to be disassembled, the width of the embedding interface 71 is adjusted to adjust the size of the force required for disassembly of the matching component 90.

[0045] like Figure 3As shown, the bearing rib 20 is roughly wedge-shaped and / or T-shaped in cross section. The bearing rib 20 extends to one side of the hollow positioning area 70 and forms a convex portion as a positioning unit 23. In one embodiment, the bearing rib 20 extends in the direction of one side of the hollow positioning area 70 until the bearing rib 20 forms a convex portion inside the hollow positioning area 70, and the direction of the positioning unit 23 in which the bearing rib 20 extends to one side of the hollow positioning area 70 to form the convex portion is the first direction R1. In one embodiment, the matching component 90 achieves a fixed installation effect by introducing its positioning body 60 into the hollow positioning area 70. In one embodiment, during the installation of the matching component 90, the positioning body 60 is introduced into the hollow positioning area 70 in the direction of installation, and the direction in which the positioning body 60 is introduced into the hollow positioning area 70 is the second direction R2. In one embodiment, the positioning unit 23 extends toward the positioning area 70 along the first direction R1, and forms an acute angle α with the introduction direction R2 for introducing the positioning body 60 into the positioning area 70, which is suitable for forming a fitting state between the positioning unit 23 and the positioning body 60. In one embodiment, the fitting state formed by the positioning unit 23 and the positioning body 60 can be firmly fixed in a suitable position after the matching component 90 is installed, and will not be loosened and disengaged during normal driving of the vehicle or other mechanical or thermal loads. The sealing area 50 is carried on the surface of the load-bearing rib 20. The sealing area 50 is preferably made of an elastic material, such as a thermoplastic elastomer (TPE), sponge rubber or other suitable materials, such as an elastomer or rubber raw material. In one embodiment, the sealing area 50 is located between the lower edge of the vehicle window glass 110 and the upper edge of the matching component 90 in the installed position of the matching component 90, and forms a substantially smooth and surface-flush transition portion between the vehicle window glass 110 and the matching component 90. The transition portion formed by the sealing area 50 can achieve a sealing effect between the window glass and the matching component, while also maintaining the appearance of the portion. In one embodiment, the sealing area 50 and the load-bearing rib 20 are an integrally formed structure. In a specific embodiment, the matching component includes a ventilation trim, a ventilation cover, an air-conditioning grille, a water tank cover or a water tank cover of a water storage device.

[0046] like Figure 3 As shown, the present invention further provides a vehicle window glass assembly, characterized in that it includes a vehicle window glass 110 and a lower clip strip 10 of the present invention, wherein the lower clip strip 10 is fixed to the vehicle window glass 110 via an adhesive layer 31 on the surface of a first connection region 30. When the matching component 90 is installed in the vehicle window glass assembly of the present invention, a sealing effect between the vehicle window glass 110 and the matching component 90 can be achieved without causing water leakage between the vehicle window glass 110 and the matching component 90.

[0047] The process of installing the mating component 90 into the lower clip strip 10 was simulated by using the finite element simulation software Abaqus 2022. Plane stress assumptions were made for the lower clip strip 10 and the mating component 90, and cross sections were taken for analysis. The lower clip strip 10 and the mating component 90 were meshed using CPS4 respectively. The boundary conditions applied were the same as in the real situation. Fixed boundary conditions were applied to the surface of the adhesion layer 31 (i.e., it was fixed on the window glass through its adhesion layer 31), and fixed boundary conditions were applied to the surface of the support rib 46 (i.e., it was closely connected to the vehicle body through the support rib 46). The mutual contact between the mating component 90 and the lower clip strip 10 used a surface contact model in the simulation model. In this surface contact model, the tangential friction coefficient was changed to study the effect of the friction coefficient on the insertion force. Then a loading step was created. In this loading step, the displacement condition was used to control the installation of the mating component 90 into the lower clip strip 10, and the reaction force during the installation process was recorded. The materials used in the simulation model are shown in Table 1:

[0048] Table 1

[0049] Material Parts Material Name Elastic modulus [MPa] Poisson's ratio Lower card strip Polyhexamethylene adipamide (PA66) 3440 0.3 Reinforced padding Aluminum Strip 70000 0.3

[0050] The results are as follows Figure 1 As shown. The inventors have found that the force required for the interaction between the matching component 90 and the lower clamping strip 10 during installation is related to the friction coefficient of the material in contact. As the friction coefficient of the contacting material increases, the force required for the interaction between the matching component 90 and the lower clamping strip 10 during installation also increases. When the friction coefficient decreases from 0.3 to 0.1, the force required for the interaction during installation decreases from 28.7N to 15.1N, a decrease of 47.4%. The inventors have also found that the self-friction coefficient of the polyamide PA66 used as the material of the positioning body 60 of the lower clamping strip 10 and the matching component 90 is 0.4-0.6 under the sliding speed of 0.42m / s and the contact pressure of 200N under the test conditions.

[0051] In order to achieve the convenient and fast installation of the matching component 90 relative to the corresponding position of the vehicle glass 110, the stability after installation, and the convenience and speed when it needs to be removed, the necessary requirements are set for the force required for installation and removal. Figure 2A-2HAs shown, when the matching component 90 is installed or removed, the positioning body 60 of the matching component 90 contacts and squeezes the positioning unit 23 and / or the elastic leg 42 of the lower clamping strip 10 in the hollow positioning area 70, causing the positioning body 60 of the matching component 90 and / or the positioning unit 23 and / or the elastic leg 42 in the lower clamping strip 10 that contact with it to deform, thereby forming resistance during installation or removal. The inventor has found that when the matching component 90 is installed, the resistance provided by the deformation of the contact material is less than 60N / 100mm, which can achieve a convenient and fast installation effect; when the matching component 90 is removed, the resistance provided by the deformation of the contact material is more than 70N / 100mm, which can achieve a reasonable range of stable fixation and removal force after installation. In one embodiment, when the matching component 90 is installed, the resistance provided by the deformation of the contact material is less than 50N / 100mm. In one embodiment, when the matching component 90 is installed, the resistance provided by the deformation of the contact material is less than 40N / 100mm. When the mating component 90 is installed, the resistance provided by the deformation of the contact material is 60N / 100mm. In one embodiment, when the mating component 90 is installed, the resistance provided by the deformation of the contact material is 50N / 100mm. In one embodiment, when the mating component 90 is installed, the resistance provided by the deformation of the contact material is 40N / 100mm. In one embodiment, when the mating component 90 is disassembled, the resistance provided by the deformation of the contact material is 100N / 100mm or more. In one embodiment, when the mating component 90 is disassembled, the resistance provided by the deformation of the contact material is 120N / 100mm or more. In one embodiment, when the mating component 90 is disassembled, the resistance provided by the deformation of the contact material is 70N / 100mm. In one embodiment, when the mating component 90 is disassembled, the resistance provided by the deformation of the contact material is 100N / 100mm. In one embodiment, when the mating component 90 is disassembled, the resistance provided by the deformation of the contact material is 120N / 100mm.

[0052] Therefore, the inventors found that in order to achieve convenient and quick installation of the matching component 90 relative to the corresponding position of the vehicle glass 110, stability after installation, and convenience and speed when disassembly is required, it is related to the friction coefficient between the lower clamping strip 10 and the positioning body of the matching component 90 and the material of the contact part.

[0053] The process of installing the mating component 90 into the lower clip strip 10 is simulated by using the finite element simulation software Abaqus 2022. The plane stress assumption is made for the lower clip strip 10 and the mating component 90, and the cross section is taken for analysis. The lower clip strip 10 and the mating component 90 are meshed using CPS4 respectively. The applied boundary conditions are the same as the actual situation. Fixed boundary conditions are applied to the surface of the adhesion layer 31 (i.e., it is fixed on the window glass through its adhesion layer 31), and fixed boundary conditions are applied to the surface of the support rib 46 (i.e., it is closely connected to the car body through the support rib 46). The mutual contact between the mating component 90 and the lower clip strip 10 uses a surface contact model in the simulation model. In this surface contact model, the tangential friction coefficient is set to 0.1 and 0.3 respectively to study the effect of the friction coefficient on the deformation of the lower clip strip 90. Then create a loading step. In this loading step, the displacement condition is used to control the installation of the mating component 90 into the lower clip strip 10 to simulate the deformation of the lower clip strip 90. The materials used in the simulation model are shown in Table 1.

[0054] The results are as follows Figure 2A-2D As shown in FIG. 1 , when the friction coefficient of the contact material between the lower clamping strip 10 and the positioning body 60 of the matching component 90 is 0.1 (COF=0.1), during the installation process, the positioning body 60 of the matching component 90 is introduced into the positioning area 70 of the lower clamping strip 10, and as the introduction depth of the positioning body 60 of the matching component 90 increases from 0 mm ( Figure 2A )、0.5mm( Figure 2B )、0.6mm( Figure 2C )、1.0mm( Figure 2D ) changes, the deformation of the lower card strip 10 gradually increases, but the overall deformation is not obvious. Figure 2E-2H As shown in FIG. 1 , when the friction coefficient of the contact material between the lower clamping strip 10 and the positioning body 60 of the matching component 90 is 0.3 (COF=0.3), during the installation process, the positioning body 60 of the matching component 90 is introduced into the positioning area 70 of the lower clamping strip 10. As the introduction depth of the positioning body 60 of the matching component 90 increases from 0 mm ( Figure 2E )、0.5mm( Figure 2F )、0.6mm( Figure 2G )、1.0mm( Figure 2H ) changes, the deformation of the lower clamping strip 10 gradually increases and is more obvious. In addition, compared with the condition where the friction coefficient is 0.3, the simulation model under the condition where the friction coefficient is 0.1 shows that in addition to installing the positioning body 60 of the matching component 90 to the corresponding position so that the lower clamping strip 10 has a smaller deformation, it can also have a shorter installation time.

[0055] Table 2 below shows the test results of the introduction depth of the positioning body 60 and the maximum deformation of the connecting portion 41 between the second connecting area 40 of the lower clamping strip 10 and the load-bearing rib 20 under different friction coefficient conditions in the simulation model test, where the maximum deformation refers to the maximum principal strain in the plane.

[0056] Table 2 Maximum deformation of the connection part 41 during installation and import

[0057] Lead-in depth (d) [mm] Coefficient of friction (COF) = 0.1 Coefficient of friction (COF) = 0.3 0.5 1.74％ 2.25％ 0.6 0.27％ 2.74％ 1.0 0.16％ 4.08％

[0058] As shown in Table 2, when the friction coefficient between the lower clamping strip 10 and the positioning body 60 of the mating component 90 is 0.1 (COF=0.1), during the installation process, the positioning body 60 of the mating component 90 is introduced into the positioning area 70 of the lower clamping strip 10. When the introduction depths of the positioning body 60 of the mating component 90 are 0.5 mm, 0.6 mm and 1 mm respectively, the maximum deformations of the connecting portion 41 between the second connecting area 40 of the lower clamping strip 10 and the load-bearing rib 20 are 1.74%, 0.27% and 0.16% respectively, indicating that the connecting portion 41 does not produce obvious deformation during the entire installation process. When the friction coefficient between the lower clamping strip 10 and the positioning body 60 of the matching component 90 is 0.3 (COF=0.3), during the installation process, the positioning body 60 of the matching component 90 is introduced into the positioning area 70 of the lower clamping strip 10. When the introduction depth of the positioning body 60 of the matching component 90 is 0.5 mm, 0.6 mm and 1 mm respectively, the maximum deformation of the connecting part 41 between the second connecting area 40 of the lower clamping strip 10 and the load-bearing rib 20 is 2.25%, 2.74% and 4.08% respectively. Compared with the condition that the friction coefficient of the lower clamping strip 10 is 0.1, during the whole installation process, the connecting part 41 has a more obvious deformation. The above results show that the deformation of the lower clamping strip 10 caused by the interaction between the matching component 90 and the lower clamping strip 10 during installation is related to the friction coefficient of the material in contact with it. As the friction coefficient of the contact material increases, the deformation of the lower clamping strip 10 caused by the interaction between the matching component 90 and the lower clamping strip 10 during installation also increases.

[0059] In one embodiment, the load-bearing rib 20 contacts the positioning body 60 of the matching component 90, wherein the portion of the load-bearing rib 20 used to contact the positioning body 60 of the matching component 90 is the first contact portion 21, and the self-friction coefficient of the first contact portion 21 is the first self-friction coefficient, and the first self-friction coefficient is 0.35 or less. In one embodiment, the first self-friction coefficient is 0.1-0.3. In one embodiment, the first self-friction coefficient is 0.3. In one embodiment, the first self-friction coefficient is 0.2. In one embodiment, the first self-friction coefficient is 0.1.

[0060] In one embodiment, the second connection area 40 is used for contacting the positioning body 60 of the matching component 90 as the second contact portion 43, and the self-friction coefficient of the second contact portion 43 is the second self-friction coefficient, and the second self-friction coefficient is less than 0.35. In one embodiment, the second self-friction coefficient is 0.1-0.3. In one embodiment, the second self-friction coefficient is 0.3. In one embodiment, the second self-friction coefficient is 0.2. In one embodiment, the second self-friction coefficient is 0.1. By using a material with a smaller friction coefficient, it is suitable to use only a smaller installation force to complete the installation of the lower card strip 10 of the present invention for fixing the matching component 90, so as to achieve the purpose of convenient and quick installation of the fixed matching component 90. As used herein, the first self-friction coefficient or the second self-friction coefficient can be measured under the conditions of a sliding speed of 0.42m / s and 200N.

[0061] In one embodiment, the material of the first contact portion 21 includes a mixed material. In one embodiment, the material of the second contact portion 43 includes a mixed material. In one embodiment, the material of the load-bearing rib 20 includes a mixed material. In one embodiment, the second connection area 40 includes a connection portion 41 between the second connection area 40 and the load-bearing rib 20 and an elastic leg 42, and the material of the elastic leg 42 includes a mixed material. In one embodiment, the elastic leg 42 is provided with a side protrusion 45 on one side of the hollow positioning area 70, wherein the contact portion between the second connection area 40 and the positioning body 60 of the matching component 90 is the side protrusion 45 of the elastic leg 42, and the material of the side protrusion 45 includes a mixed material. In another embodiment, the material of the positioning body 60 of the matching component 90 includes a mixed material.

[0062] In one embodiment, the mixed material for the first contact portion 21, the mixed material for the second contact portion 43, the mixed material for the load-bearing rib 20, the mixed material for the elastic leg 42, the mixed material for the side protrusion 45 and / or the mixed material for the positioning body 60 includes a mixture of polyamide and ultra-high molecular weight polyethylene (UHMWPE); or a mixture of polyamide and carbon fiber (CF); or a mixture of polyamide and polytetrafluoroethylene (PTFE).

[0063] In a specific embodiment, the mixed material for the first contact portion 21, the mixed material for the second contact portion 43, the mixed material for the bearing rib 20, the mixed material for the elastic leg 42, the mixed material for the side protrusion 45 and / or the mixed material for the positioning body 60 include a mixture of polyamide and ultra-high molecular weight polyethylene, wherein the polyamide in the mixture of polyamide and ultra-high molecular weight polyethylene is polyhexamethylene adipamide. By selecting the mixed materials of the first contact portion 21, the second contact portion 43, the bearing rib 20, the elastic leg 42, the side protrusion 45 and the positioning body 60 respectively, it is suitable for them to have a small friction coefficient, so that only a small installation force is required to complete the installation of the lower clamping strip 10 of the present invention for fixing the matching component 90, thereby achieving the purpose of convenient and quick installation of the fixing matching component 90.

[0064] In one embodiment, the weight of the ultra-high molecular weight polyethylene accounts for 5%-40% of the weight of the mixed material, for example, the weight of the ultra-high molecular weight polyethylene accounts for 5%, 8%, 11%, 14%, 15%, 18%, 21%, 24%, 27%, 30%, 33%, 36%, 39% or 40% of the weight of the mixed material. In a preferred embodiment, the weight of the ultra-high molecular weight polyethylene accounts for 10-20% of the weight of the mixed material, for example, the weight of the ultra-high molecular weight polyethylene accounts for 10%, 13%, 15%, 16%, 19% or 20% of the weight of the mixed material. In another preferred embodiment, the weight of the ultra-high molecular weight polyethylene accounts for 15% of the weight of the mixed material. By selecting the appropriate weight ratio of the weight of the ultra-high molecular weight polyethylene to the mixture, the components suitable for its composition have a smaller friction coefficient, so that only a smaller installation force is required to complete the installation of the lower clamping strip 10 of the present invention for fixing the matching component 90, so as to achieve the purpose of convenient and quick installation of the fixing matching component 90.

[0065] In one embodiment, the mixed material includes a compatibilizer. In one embodiment, the compatibilizer includes, but is not limited to, polyethylene grafted with styrene (PE-g-ST), polypropylene grafted with styrene (PP-g-ST), acrylonitrile-butadiene-styrene copolymer grafted with maleicanhydrade (ABS-g-MAH), polyethylene grafted with maleicanhydrade (PE-g-MAH), polypropylene grafted with maleicanhydrade (PP-g-MAH), and high-density polyethylene grafted with maleic anhydrade (High Density Polyethylene grafted with maleic anhydrade, MAH-g-HDPE). In a specific embodiment, the compatibilizer includes high-density polyethylene grafted with maleic anhydride (MAH-g-HDPE). The molecular weight of the compatibilizer used in the present invention can be adjusted accordingly according to specific needs. The weight average molecular weight of the compatibilizer can be about 10000-300000, for example, about 20000-150000 or about 20000-120000. By selecting a suitable compatibilizer, the components suitable for its composition have a small friction coefficient, so that only a small installation force is required to complete the installation of the lower clamping strip 10 of the present invention for fixing the matching component 90, thereby achieving the purpose of convenient and quick installation of the fixing matching component 90.

[0066] In one embodiment, when the mixed material includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the compatibilizer accounts for less than 2% of the weight of the mixture. In one embodiment, the mixed material for the first contact portion 21, the mixed material for the second contact portion 43, the mixed material for the load-bearing rib 20, the mixed material for the elastic leg 42, the mixed material for the side protrusion 45 and / or the mixed material for the positioning body 60 includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, wherein the weight of the compatibilizer accounts for less than 2% of the weight of the mixture. In another embodiment, in the above-mentioned respective mixed materials including a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the compatibilizer accounts for more than 0.9% of the weight of the mixture.

[0067] In one embodiment, when the mixed material comprises a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the polyamide accounts for 84.6%-89.6% of the weight of the mixture, for example, 84.6%, 85.0%, 85.4%, 85.8%, 86.2%, 86.6%, 87.0%, 87.4%, 87.8%, 88.2%, 88.6%, 89.0%, 89.1%, 89.4% or 89.6%. In a specific embodiment, when the mixed material comprises a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the polyamide accounts for 89.1% of the weight of the mixture. In one embodiment, when the mixed material includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the ultra-high molecular weight polyethylene accounts for 9.4%-10.4% of the weight of the mixture, for example, 9.4%, 9.6%, 9.8%, 9.9%, 10.0%, 10.2% or 10.4%. In a specific embodiment, when the mixed material includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the ultra-high molecular weight polyethylene accounts for 9.9% of the weight of the mixture. In one embodiment, when the mixed material includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the compatibilizer accounts for 0.94%-1.04% of the weight of the mixture, for example, 0.94%, 0.96%, 0.98%, 0.99%, 1.00%, 1.02% or 1.04%. In a specific embodiment, when the mixed material includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, the weight of the compatibilizer accounts for 0.99% of the weight of the mixture.

[0068] In one embodiment, the mixed material for the first contact portion 21, the mixed material for the second contact portion 43, the mixed material for the load-bearing rib 20, the mixed material for the elastic leg 42, the mixed material for the side protrusion 45 and / or the mixed material for the positioning body 60 includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer, and the weight of the polyamide accounts for 84.6%-89.6% of the weight of the mixture, for example, 84.6%, 85.0%, 85.4%, 85.8%, 86.2%, 86.6%, 87.0%, 87.7%, 87.9%, 88.1%, 88.2%, 88.3%, 88.4%, 88.6%, 88.7%, 88.8%, 88.9%, 89.0%, 90.1%, 91.2%, 92.3%, 93.4%, 94.5%, 95.6%, 96.7%, 97.8%, 98.9%, 99.1%, 100. .4%, 87.8%, 88.2%, 88.6%, 89.0%, 89.1%, 89.4% or 89.6%, the weight of ultra-high molecular weight polyethylene accounts for 9.4%-10.4% of the weight of the mixture, for example, 9.4%, 9.6%, 9.8%, 9.9%, 10.0%, 10.2% or 10.4%, and the weight of the compatibilizer accounts for 0.94%-1.04% of the weight of the mixture, for example, 0.94%, 0.96%, 0.98%, 0.99%, 1.00%, 1.02% or 1.04%.

[0069] In a specific embodiment, the mixed material for the first contact portion 21, the mixed material for the second contact portion 43, the mixed material for the bearing rib 20, the mixed material for the elastic leg 42, the mixed material for the side protrusion 45 and / or the mixed material for the positioning body 60 includes a mixture of polyamide, ultra-high molecular weight polyethylene and a compatibilizer in a weight ratio of 90:10:1. By selecting the ratio of each component in the mixed material, the component suitable for its composition has a smaller friction coefficient, so that the lower clamping strip 10 of the present invention can be installed for fixing the matching component 90 with only a small installation force, so as to achieve the purpose of convenient and quick installation of the fixing matching component 90.

[0070] By using the mixed material with a smaller friction coefficient of the present invention, the mating component 90 can be installed with less force and firmly fixed in the lower clamping strip 10, thereby achieving more convenient and labor-saving installation and reducing component damage; at the same time, the mixed material with a smaller friction coefficient of the present invention also ensures that the force required for disassembly of the mating component 90 is within a suitable range, so that the disassembly of the mating component 90 is also convenient and quick. The use of the mixed material used in the present invention can reduce the introduction force when the mating component 90 is installed on the lower clamping strip 10 and the pull-out force when removing the mating component from the lower clamping strip during disassembly. The use of the lower clamping strip 10 and its corresponding materials of the present invention can also take into account the protection of the mating component 90 and the lower clamping strip 10 itself during installation and disassembly, such as the hardness, strength, and wear resistance of the material. In addition, if Figure 4 As shown, in the lower clamping strip 10 of the present invention, the hollow positioning area 70 is formed by the second connecting area 40 and the bearing rib 20, wherein the second connecting area 40 and the bearing rib 20 are an integrally formed structure, which can achieve the purpose of firmly positioning the mating component 90, and there is no need for additional positioning components or parts in the hollow positioning area 70 to further position the positioning body 60 of the mating component 90.

[0071] like Figure 3As shown, when the positioning body 60 of the mating component 90 is introduced into the hollow positioning area 70 of the lower clamping strip 10 for installation, the nose-shaped edge 61 of the positioning body 60 contacts the elastic leg 42 in the second connecting area 40, and is introduced into the hollow positioning area 70 along the inclined surface 44 set on the elastic leg 42. After the positioning body 60 is fixed at the positioning position, the side protrusion 45 of the elastic leg 42 forms an interlocking state with the nose-shaped edge 61 on the positioning body 60 at the positioning position of the positioning body 60; the nose-shaped edge 62 of the positioning body 60 contacts the positioning unit 23 formed by the load-bearing rib 20 extending along the first direction R1 toward the hollow positioning area 70, and the first direction R1 forms an acute angle α with the introduction direction R2 used to introduce the positioning body 60 into the positioning area 70, which is suitable for making the positioning unit 23 and the positioning body 60 form an interlocking state. Based on the cooperation between the elastic legs 42 and the positioning unit 23 , the positioning body 60 of the matching component 90 is fixed at a suitable position in the hollow positioning area 70 , so that the matching component 90 can be stably installed and fixed at a suitable position.

[0072] In one embodiment, the load-bearing rib 20, the first connection area 30 and the second connection area 40 may include reinforcing pads 22, 32. In one embodiment, the load-bearing rib 20, the first connection area 30 and the second connection area 40 are provided with reinforcing pads 22, 32 at least in sections. In one embodiment, the reinforcing pads may be selected from aluminum strips. In one embodiment, the reinforcing pads 32 may extend from the first connection area 30 to the elastic legs 42 in the second connection area 40. In another embodiment, the reinforcing pads 22, 32 follow the shape of the components of the lower clip strip 10. In another embodiment, the reinforcing pads 22, 32 may be adjusted in length as required, and may be used as shorter or longer components. In one embodiment, the reinforcing pads 22 present in the load-bearing rib 20 further improve the stability of the lower clip strip 10 and the load-bearing capacity of the load-bearing rib 20.

[0073] In one embodiment, the elastic leg 42 is provided with a slope 44 and the side protrusion 45 of the elastic leg 42 forms an interlocking state with the nose-shaped edge 61 on the positioning body 60 at the positioning position of the positioning body 60, which is suitable for allowing the positioning body 60 to be introduced into the hollow positioning area 70 without consuming a lot of force, and it becomes difficult to pull the positioning body 60 out of the hollow positioning area 70, so that it can be easily installed, always firmly fixed after installation, and can also be disassembled when necessary. In one embodiment, the nose-shaped edge 62 of the positioning body 60 contacts the positioning unit 23 formed by the load-bearing rib 20 extending along the first direction R1 toward the hollow positioning area 70. The first direction R1 forms an acute angle α with the introduction direction R2 for introducing the positioning body 60 into the positioning area 70, which is suitable for allowing the positioning unit 23 to form an interlocking state with the positioning body 60, and for allowing the positioning body 60 to be introduced into the hollow positioning area 70 without consuming a large force, while making it difficult to pull the positioning body 60 out of the hollow positioning area 70, thereby achieving easy installation, always firmly fixed after installation, and can also be disassembled when necessary.

[0074] In another embodiment, the second connection area 40 may further include a support rib 46. The support rib 46 has a soft structure at the bottom and is closely connected to the vehicle body, providing sufficient support for the lower clip bar, while also having the functions of energy absorption and shock reduction, and improving shock absorption and noise reduction.

[0075] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A lower clip strip (10) for connecting a vehicle glass (110) with a matching component (90), the lower clip strip (10) comprising a load-bearing rib (20), a first connecting area (30), a second connecting area (40) and a sealing area (50), The bearing rib (20) is used to position the positioning body (60) of the matching component (90). The first connection area (30) is used to connect the lower clip strip (10) and the vehicle glass (110). The second connection area (40) is used to connect the lower clamping strip (10) and the matching component (90). The sealing area (50) is used to seal the vehicle glass (110) and the matching component (90). It is characterized in that The portion of the load-bearing rib (20) that is in contact with the positioning body (60) of the matching component (90) is a first contact portion (21), the self-friction coefficient of the first contact portion (21) is a first self-friction coefficient, and the first self-friction coefficient is less than 0.35; and / or The portion of the second connection area (40) that is used to contact the positioning body (60) of the matching component (90) is a second contact portion (43), and the self-friction coefficient of the second contact portion (43) is a second self-friction coefficient, and the second self-friction coefficient is less than 0.

35.

2. The lower clamping strip according to claim 1, characterized in that: The first self-friction coefficient is 0.1-0.3; and / or The second self-friction coefficient is 0.1-0.

3.

3. The lower clamping strip according to claim 1, characterized in that: The material of the first contact portion (21) comprises a mixed material; and / or The material of the second contact portion (43) comprises a mixed material; and / or The material of the load-bearing rib (20) comprises a mixed material.

4. The lower clamping strip according to claim 1, characterized in that: The second connection area (40) includes a connection portion (41) between the second connection area (40) and the load-bearing rib (20) and an elastic leg (42), wherein the material of the elastic leg (42) includes a mixed material.

5. The lower clamping strip according to claim 4, characterized in that: The second connecting area (40) and the supporting rib (20) form a hollow positioning area (70) having a positioning body (60) for accommodating the matching component, and the elastic leg (42) is provided with a side protrusion (45) on one side of the hollow positioning area (70), wherein the material of the side protrusion (45) includes a mixed material.

6. The lower clamping strip according to any one of claims 3 to 5, characterized in that: The mixed material includes A blend of polyamide and ultra-high molecular weight polyethylene; A mixture of polyamide and carbon fibres; or A mixture of polyamide and polytetrafluoroethylene.

7. The lower clamping strip according to claim 6, characterized in that: When the mixed material comprises a mixture of the polyamide and the ultra-high molecular weight polyethylene, The polyamide and ultra-high molecular weight polyethylene mixture includes a mixture of polyhexamethylene adipamide and ultra-high molecular weight polyethylene.

8. The lower clamping strip according to claim 6, characterized in that: When the mixed material comprises a mixture of the polyamide and the ultra-high molecular weight polyethylene, The weight of the ultra-high molecular weight polyethylene accounts for 5% to 40% of the weight of the mixture.

9. The lower clamping strip according to claim 8, characterized in that: When the mixed material comprises a mixture of the polyamide and the ultra-high molecular weight polyethylene, The weight of the ultra high molecular weight polyethylene accounts for 10% to 20% of the weight of the mixture.

10. The lower clamping strip according to claim 6, characterized in that: The mixed material also includes a compatibilizer.

11. The lower clamping strip according to claim 10, characterized in that: The compatibilizer includes maleic anhydride grafted high density polyethylene.

12. The lower clamping strip according to claim 10, characterized in that: When the mixed material comprises a mixture of the polyamide, the ultra-high molecular weight polyethylene and the compatibilizer, The weight of the compatibilizer is less than 2% of the weight of the mixture.

13. The lower clamping strip according to claim 12, characterized in that: When the mixed material comprises a mixture of the polyamide, the ultra-high molecular weight polyethylene and the compatibilizer, The weight of the polyamide accounts for 84.6% to 89.6% of the weight of the mixture; The weight of the ultra-high molecular weight polyethylene accounts for 9.4%-10.4% of the weight of the mixture; The weight of the compatibilizer is 0.94% to 1.04% of the weight of the mixture.

14. The lower clamping strip according to claim 1, characterized in that: The second connecting area (40) and the bearing rib (20) form a hollow positioning area (70) for accommodating the positioning body (60) of the matching component. The bearing rib (20) extends toward one side of the hollow positioning area (70) and forms a protruding portion as a positioning unit (23). The positioning unit (23) is used to position the positioning body (60) in the hollow positioning area (70). The direction of the positioning unit (23) extending from the bearing rib (20) toward one side of the hollow positioning area (70) to form the protruding portion is a first direction (R1). The direction in which the positioning body (60) is introduced into the hollow positioning area (70) is a second direction (R2). The first direction (R1) and the second direction (R2) form an acute angle (α), which is suitable for the positioning unit (23) and the positioning body (60) to form a mating state.

15. The lower clamping strip according to claim 14, characterized in that: The second connection area (40) and the bearing rib (20) are an integrally formed structure.

16. The lower clamping strip according to claim 14, characterized in that: The second connection area (40) comprises a connection portion (41) connected to the load-bearing rib (20) and an elastic leg (42), wherein the elastic leg (42) and the positioning unit (23) together define an embedding interface (71) of the hollow positioning area (70).

17. The lower clamping strip according to claim 16, characterized in that: The width of the embedding interface (71) is 1.5-1.9 mm.

18. The lower clamping strip according to claim 16, characterized in that: The elastic leg (42) is L-shaped, U-shaped or hook-shaped.

19. The lower clamping strip according to claim 18, characterized in that: The elastic leg (42) is provided with a side convex portion (45) on one side of the hollow positioning area (70); when the positioning body (60) is in the positioning position, the side convex portion (45) and the nose-shaped edge (61) on the positioning body (60) form a chimeric state, which is suitable for positioning the positioning body (60) in the hollow positioning area (70).

20. The lower clamping strip according to claim 1, characterized in that: The lower clamping strip (10) further comprises an elastic sheet (80), When the matching component (90) is in the positioning position, the elastic sheet (80) contacts the matching component (90) and provides a buffering and supporting positioning function, which is suitable for fixing the matching component (90) in a suitable position.

21. The lower clamping strip according to claim 1, characterized in that: The supporting rib (20), the first connecting region (30) and / or the second connecting region (40) are at least partially provided with reinforcing pads (22, 32).

22. The lower clamping strip according to claim 21, characterized in that: The supporting rib (20), the first connecting region (30) and / or the second connecting region (40) form an extruded profile.

23. The lower clamping strip according to claim 1, characterized in that: The sealing area (50) is located between the lower edge of the window pane and the upper edge of the matching component (90) in the installed position of the matching component (90) and forms a smooth and flush transition between the window pane (110) and the matching component (90).

24. The lower clamping strip according to claim 1, characterized in that: The matching parts include ventilation trims, ventilation covers, air-conditioning air intake grilles, and water tank covers or water tank covers of water storage devices.

25. A vehicle window glass assembly, characterized in that: It comprises a vehicle window glass (110) and a lower clip strip (10) according to any one of claims 1 to 24. The lower clip strip (10) is fixed to the vehicle window glass (110) via an adhesive layer (31) on the surface of the first connection area (30).

26. A vehicle, characterized in that: It comprises the lower clip strip (10) according to any one of claims 1 to 24 or the vehicle window glass assembly according to claim 25.

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