Door frame strip, vehicle door assembly and vehicle

Abstract

The utility model relates to a door frame strip, a vehicle door assembly and a vehicle, the door frame strip comprises an upper frame body and a lower frame body, the upper frame body is connected to the upper portion of the lower frame body, the upper frame body and the lower frame body each comprise a fixing part and an extrusion part which are connected with each other, the fixing parts are used for being connected with a vehicle frame body of the vehicle, and the extrusion parts are used for abutting against a vehicle door; the pressure applied to the vehicle door by the extrusion part of the upper frame body is smaller than that applied to the vehicle door by the extrusion part of the lower frame body, so that the sealing performance of the extrusion part of the upper frame body to the vehicle door is different from that of the extrusion part of the lower frame body to the vehicle door. On one hand, when the extrusion part of the lower frame body is pressed on the vehicle door, larger pressure can be applied to the vehicle door, so that a better sealing effect can be achieved, and the fording depth of the vehicle is increased; the risks of deformation and damage of the window frame due to overlarge pressure can be effectively avoided, the manufacturing materials and weight of the window frame are reduced, and the light weight of a vehicle is facilitated.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more particularly to a door frame strip, a door assembly, and a vehicle. Background Technology

[0002] Door frame strips are sealing structures installed between the car door and the vehicle frame to prevent rainwater, ground water, and other liquids from seeping into the vehicle interior, thus avoiding moisture damage to electrical equipment or interior trim. In related technologies, the cross-section of the door frame strip is consistent at all heights. To achieve a better seal, the overall strength of the door frame strip needs to be increased (e.g., by increasing its thickness), allowing it to exert greater pressure on the car door. However, as the strength of the door frame strip increases, the pressure it exerts on the window frame also increases. To prevent window frame deformation, the strength of the window frame needs to be increased, which increases development and manufacturing costs and adds to the technical difficulty. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a door frame strip, a door assembly, and a vehicle.

[0004] According to a first aspect of the present disclosure, a door frame strip is provided, including an upper frame and a lower frame, wherein the upper frame is connected above the lower frame;

[0005] Both the upper frame and the lower frame include a fixing part and a pressing part that are connected to each other. The fixing part is used to connect with the vehicle frame body, and the pressing part is used to abut against the door.

[0006] The pressure exerted on the door by the compression part of the upper frame is less than the pressure exerted on the door by the compression part of the lower frame, so that the sealing performance of the door by the compression part of the upper frame is different from that of the door by the compression part of the lower frame.

[0007] Optionally, the wall thickness S of the extrusion portion of the upper frame is the same as the wall thickness D of the extrusion portion of the lower frame.

[0008] Optionally, the wall thickness of the extrusion portion of the upper frame is less than the wall thickness of the extrusion portion of the lower frame.

[0009] Optionally, the wall thickness of the extrusion part of the upper frame is 1.2mm to 1.5mm, and the wall thickness of the extrusion part of the lower frame is 1.8mm to 2.5mm.

[0010] Optionally, the extrusion part is formed as a hollow structure with an internal cavity. The extrusion part includes a connecting wall and a deformable wall. The deformable wall is connected to the fixing part through the connecting wall. The wall thickness of the deformable wall of the upper frame is less than the wall thickness of the deformable wall of the lower frame.

[0011] Optionally, at least one vent hole is also formed on the deformable wall, and the vent hole penetrates the deformable wall along the thickness direction of the deformable wall.

[0012] Optionally, the upper frame and the lower frame are each formed in a U-shape, and the upper frame and the lower frame together form a ring structure.

[0013] Optionally, the upper frame and the lower frame are integrally formed.

[0014] Optionally, the door frame strip further includes at least one clamping strip, an opening groove is formed on one side of the fixing part, the opening groove extends along the length direction of the fixing part, the clamping strip is located in the opening groove and is used to abut against the frame body, the clamping strip is connected to the side wall of the opening groove and extends obliquely toward the bottom wall of the opening groove.

[0015] Optionally, the door frame strip further includes a sealant layer that covers the bottom wall of the opening groove.

[0016] Optionally, the door frame strip further includes a first sealing strip, which is connected to the fixing part. The first sealing strip is disposed outside the opening groove and extends along the opening direction of the opening groove.

[0017] Optionally, the door frame strip further includes at least one clamping strip located within the opening groove and used to abut against the vehicle frame body. The clamping strip is connected to the side wall of the opening groove and extends obliquely toward the bottom wall of the opening groove.

[0018] Optionally, the door frame strip further includes a second sealing strip, which extends obliquely toward the bottom wall of the opening groove;

[0019] The second sealing strip and the clamping strip are respectively connected to the two oppositely arranged side walls of the opening groove.

[0020] Optionally, the clamping strip is offset from the second sealing strip.

[0021] Optionally, the cross-sectional shape of the extrusion portion of the upper frame is different from the cross-sectional shape of the extrusion portion of the lower frame.

[0022] Optionally, the cross-sectional shape of the extrusion portion of the upper frame is the same as that of the extrusion portion of the lower frame, and the extrusion portion of the lower frame is provided with a reinforcing structure inside.

[0023] Optionally, the sealing performance of the upper frame's compression portion to the car door is less than that of the lower frame's compression portion to the car door.

[0024] According to a second aspect of the present disclosure, a door assembly is provided, including a door and a door frame strip as described above, wherein the pressing portion of the door frame strip is used to abut against the door.

[0025] According to a third aspect of the present disclosure, a vehicle is provided, including a frame body and a door frame strip as described above or a door assembly as described above.

[0026] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0027] The pressure exerted on the door by the upper frame's compression portion is less than that exerted by the lower frame's compression portion. This results in different sealing performances between the upper and lower frame's compression portions. Specifically, the lower frame's compression portion provides a better seal. Firstly, when the lower frame's compression portion presses against the door, it applies greater pressure, achieving a better seal and preventing liquid from seeping into the vehicle from bottom to top through the gap between the lower frame's compression portion and the door when wading, thus increasing the vehicle's wading depth. Secondly, the pressure exerted by the upper frame's compression portion on the top of the door (window frame) is relatively smaller. Therefore, while achieving a seal on the window frame, it also effectively avoids the risk of deformation or damage to the window frame due to excessive pressure. This eliminates the need for reinforcing or thickening the window frame, reducing manufacturing materials and weight, and contributing to vehicle lightweighting. It should be understood that the above general description and the following detailed description are exemplary and explanatory only and do not limit this disclosure. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0029] Figure 1 This is a front view of a door frame strip provided in an exemplary embodiment of this disclosure, wherein the illustrated door frame strip is used for a front door.

[0030] Figure 2 It is along Figure 1 A cross-sectional view after cutting along line AA.

[0031] Figure 3 It is along Figure 1 A cross-sectional view after cutting along the BB line.

[0032] Explanation of reference numerals in the attached figures

[0033] 1-Door frame strip; 10-Upper frame; 11-Lower frame; 20-Fixing part; 21-Opening groove; 30-Extrusion part; 31-Cavity; 32-Connecting wall; 33-Deformable wall; 331-Exhaust hole; 40-Pressure strip; 50-Sealing adhesive layer; 60-First sealing strip; 70-Second sealing strip; 80-Support frame; 90-Toothed structure; 100-Door; 200-Chassis body. Detailed Implementation

[0034] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0035] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". Definitions of other terms will be given in the following description.

[0036] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0037] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0038] In this disclosure, it should be understood that directional terms such as "up" and "down" are used in conjunction with the preceding text. Figure 1 The orientation of the drawing is defined only for the purpose of facilitating and simplifying the description of this disclosure, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation construction and operation, and therefore should not be construed as a limitation of this disclosure.

[0039] In related technologies, the cross-section of the door frame strip is consistent at different heights. In order to achieve a better sealing effect, the overall strength of the door frame strip needs to be increased (such as by increasing its thickness) so that the door frame strip can exert greater pressure on the car door. However, as the strength of the door frame strip increases, the pressure it exerts on the window frame also increases. In order to avoid deformation of the window frame, the strength of the window frame needs to be increased, which will increase the development and manufacturing costs and increase the technical difficulty.

[0040] Based on this, refer to Figures 1 to 3As shown, according to a first aspect of the present disclosure, a door frame strip 1 is provided, including an upper frame 10 and a lower frame 11. The upper frame 10 is connected above the lower frame 11. Both the upper frame 10 and the lower frame 11 include a fixing part 20 and a pressing part 30 connected to each other. The fixing part 20 is used to connect with the vehicle frame body 200, and the pressing part 30 is used to abut against the door 100. The pressure exerted by the pressing part 30 of the upper frame 10 on the door 100 is less than the pressure exerted by the pressing part 30 of the lower frame 11 on the door 100, so that the sealing performance of the pressing part 30 of the upper frame 10 on the door 100 is different from that of the pressing part 30 of the lower frame 11 on the door 100.

[0041] In this design, the pressure exerted by the pressing portion 30 of the upper frame 10 on the car door 100 is less than the pressure exerted by the pressing portion 30 of the lower frame 11 on the car door 100. This allows the sealing performance of the pressing portion 30 of the upper frame 10 on the car door 100 to differ from that of the pressing portion 30 of the lower frame 11. Specifically, the pressing portion 30 of the lower frame 11 provides a better seal to the car door 100. This is because, when the pressing portion 30 of the lower frame 11 presses against the car door 100, it can apply greater pressure, thereby achieving a better seal. The sealing effect prevents liquid from seeping into the vehicle from bottom to top through the gap between the squeezing part 30 of the lower frame 11 and the door 100 when the vehicle is wading, thus increasing the vehicle's wading depth. On the other hand, the squeezing part 30 of the upper frame 10 exerts relatively little pressure on the upper part of the door 100 (window frame). Therefore, while achieving a seal on the window frame, it can also effectively avoid the risk of deformation or damage to the window frame due to excessive pressure. In this way, there is no need to strengthen or thicken the window frame, reducing manufacturing materials and weight, which is more conducive to the vehicle's lightweight design.

[0042] Regarding the difference in sealing performance between the upper frame 10's compression portion 30 and the lower frame 11's compression portion 30 on the car door 100, in one embodiment provided in this disclosure, the sealing performance of the upper frame 10's compression portion 30 on the car door 100 is less than that of the lower frame 11's compression portion 30. Thus, when in contact with the car door 100, the pressure exerted by the upper frame 10's compression portion 30, which has a lower sealing performance, on the car door 100 is also less than the pressure exerted by the lower frame 11's compression portion 30. This ensures that while the lower frame 11's compression portion 30 achieves a sealing effect on the car door 100, it also avoids damage to the upper structure (window frame) of the car door 100 due to excessive pressure exerted by the upper frame 10's compression portion 30 on the car door 100.

[0043] For example, in one exemplary embodiment provided in this disclosure, applying a pressure of 5N to the compression portion 30 of the upper frame 10 and a pressure of 13N to the compression portion 30 of the lower frame 11 can compress the compression portions 30 of the upper frame 10 and the compression portions 30 of the lower frame 11 to the same height.

[0044] In this disclosure, there are no restrictions on how the sealing performance of the extrusion portion 30 of the upper frame 10 to the door 100 differs from that of the extrusion portion 30 of the lower frame 11 to the door 100. For example, it can be achieved by changing the wall thickness S of the extrusion portion 30 of the upper frame 10 or the wall thickness D of the extrusion portion 30 of the lower frame 11, or it can be achieved without changing the wall thickness S of the extrusion portion 30 of the upper frame 10 or the wall thickness D of the extrusion portion 30 of the lower frame 11. For example, in one embodiment provided in this disclosure, the wall thickness S of the extrusion portion 30 of the upper frame 10 is the same as the wall thickness D of the extrusion portion 30 of the lower frame 11. In the above embodiment, the extrusion portion 30 of the upper frame 10 and the extrusion portion 30 of the lower frame 11 have the same wall thickness, which facilitates the processing and manufacturing of the door frame strip 1 and is more conducive to maintaining the consistency of the appearance of the door frame strip 1 in the vertical direction, thereby improving the aesthetics of the door frame strip 1.

[0045] In this disclosure, the cross-sectional shape of the pressing portion 30 of the upper frame 10 can be the same as that of the pressing portion 30 of the lower frame 11. Alternatively, in the first exemplary embodiment provided in this disclosure, the cross-sectional shape of the pressing portion 30 of the upper frame 10 can be different from that of the pressing portion 30 of the lower frame 11. Thus, the reaction force exerted by the pressing portion 30 of the upper frame 10 on the door 100 when subjected to pressure is different from that exerted by the pressing portion 30 of the lower frame 11 on the door 100, resulting in different sealing effects on the door 100 by the pressing portion 30 of the upper frame 10 and the pressing portion 30 of the lower frame 11.

[0046] Alternatively, in the second exemplary embodiment provided in this disclosure, the wall thickness S of the pressing portion 30 of the upper frame 10 is the same as the wall thickness D of the pressing portion 30 of the lower frame 11. The pressing portion 30 of the upper frame 10 and the pressing portion 30 of the lower frame 11 can also be made of materials with different compressive strengths, that is, the compressive strength of the pressing portion 30 of the lower frame 11 is greater than the compressive strength of the pressing portion 30 of the upper frame 10. This makes it possible that when the pressing portion 30 of the upper frame 10 and the pressing portion 30 of the lower frame 11 are pressed against the car door 100 at the same time, the pressure exerted by the pressing portion 30 of the upper frame 10 on the car door 100 is less than the pressure exerted by the pressing portion 30 of the lower frame 11 on the car door 100.

[0047] In the third exemplary embodiment provided in this disclosure, the cross-sectional shape of the compression portion 30 of the upper frame 10 is the same as that of the compression portion 30 of the lower frame 11, and a reinforcing structure is provided inside the compression portion 30 of the lower frame 11. Thus, by providing a reinforcing structure inside the compression portion 30 of the lower frame 11, the compressive strength of the compression portion 30 of the lower frame 11 can be improved, thereby increasing the pressure exerted by the compression portion 30 of the lower frame 11 on the vehicle door 100.

[0048] Regarding the method of changing the pressure on different positions of the car door 100 by altering the wall thickness S of the pressing portion 30 of the upper frame 10 and the wall thickness D of the pressing portion 30 of the lower frame 11, in the exemplary embodiments provided in this disclosure, such as... Figure 2 , Figure 3 As shown, the wall thickness S of the pressing part 30 of the upper frame 10 is less than the wall thickness D of the pressing part 30 of the lower frame 11. Because the wall thickness S of the pressing part 30 of the upper frame 10 is less than the wall thickness D of the pressing part 30 of the lower frame 11, when the door 100 is closed, the thinner pressing part 30 of the upper frame 10 is more prone to deformation, resulting in a smaller reverse force. This allows for the application of relatively less pressure to the window frame, which is also located at the top, thus reducing the strength requirements for the window frame.

[0049] Similarly, because the extrusion part 30 of the lower frame 11 has a larger wall thickness, it is less prone to deformation when subjected to pressure. Therefore, it can apply greater pressure to the lower door 100, thereby pressing it tightly against the door 100, improving the sealing effect and the vehicle's water-wading capability.

[0050] It should be noted that, in the embodiment where the wall thickness S of the extrusion portion 30 of the upper frame 10 is less than the wall thickness D of the extrusion portion 30 of the lower frame 11, the cross-sectional shape of the extrusion portion 30 of the upper frame 10 can be the same as the cross-sectional shape of the extrusion portion 30 of the lower frame 11, or the cross-sectional shape of the extrusion portion 30 of the upper frame 10 can be different from the cross-sectional shape of the extrusion portion 30 of the lower frame 11. This disclosure does not impose any limitations on this.

[0051] In one embodiment provided in this disclosure, such as Figure 2 , Figure 3As shown, the wall thickness S of the extrusion part 30 of the upper frame 10 is 1.2mm~1.5mm, and the wall thickness D of the extrusion part 30 of the lower frame 11 is 1.8mm~2.5mm. Since the pressure on the extrusion part 30 of the upper frame 10 during vehicle operation is relatively small, its wall thickness can be designed between 1.2mm and 1.5mm. This design can ensure a certain strength while reducing the overall weight and improving economy. In contrast, the pressure on the extrusion part 30 of the lower frame 11 is relatively large (especially when the vehicle is wading through water). To ensure sufficient strength and stability, the wall thickness of the extrusion part 30 of the lower frame 11 is designed between 1.8mm and 2.5mm, so as to better withstand the pressure and impact from the ground and ensure the vehicle's sealing and safety.

[0052] In embodiments where the wall thickness of the extruded portion 30 of the upper frame 10 is less than the wall thickness of the extruded portion 30 of the lower frame 11, optionally, as... Figure 2 , Figure 3 As shown, the extrusion part 30 is formed as a hollow structure with an internal cavity 31. The extrusion part 30 includes a connecting wall 32 and a deformable wall 33. The deformable wall 33 is connected to the fixing part 20 through the connecting wall 32. The wall thickness of the deformable wall 33 of the upper frame 10 is less than the wall thickness of the deformable wall 33 of the lower frame 11. Setting the wall thickness of the deformable wall 33 of the upper frame 10 to be less than the wall thickness of the deformable wall 33 of the lower frame 11 makes it easier for the deformable wall 33 of the upper frame 10 to deform, thereby reducing the force exerted by the deformable wall 33 of the upper frame 10 on the window frame. The wall thicknesses of the connecting wall 32 of the upper frame 10 and the connecting wall 32 of the lower frame 11 are the same. This ensures the connection strength between the deformable wall 33 and the fixing part 20, thereby ensuring the overall stability of the door frame strip 1.

[0053] like Figure 2 , Figure 3 As shown, optionally, at least one vent hole 331 is also formed on the deformable wall 33, and the vent hole 331 penetrates the deformable wall 33 along the thickness direction of the deformable wall 33. By providing at least one vent hole 331 on the deformable wall 33, when the deformable wall 33 is compressed, the deformable wall 33 deforms, and the gas in the cavity can be quickly released through the vent hole 331. This helps to absorb and disperse the impact force, balance the pressure inside the compression section 30, and prevent structural failure caused by excessive internal pressure in extreme cases.

[0054] Furthermore, by rationally designing the location, size, and number of exhaust vents 331, the performance of the door frame strip 1 can be further optimized to improve the vehicle's safety and reliability.

[0055] In the embodiment where at least one vent hole 331 is provided on the extrusion part 30, the pressure applied by the extrusion part 30 of the upper frame 10 to the door 100 and the pressure applied by the extrusion part 30 of the lower frame 11 to the door 100 can be adjusted by the number and diameter of the vent holes 331 provided on the extrusion part 30 of the upper frame 10 and the extrusion part 30 of the lower frame 11, for example, by providing more vent holes 331 on the extrusion part 30 of the upper frame 10 than on the extrusion part 30 of the lower frame 11.

[0056] like Figure 1 As shown in this disclosure, the upper frame 10 and the lower frame 11 can each be formed into a U-shape, and the upper frame 10 and the lower frame 11 together form a ring structure. In this way, when the door frame strip 1 is assembled onto the vehicle, the U-shaped upper frame 10 and the lower frame 11 can respectively adapt to the upper contour of the door 100 and the lower contour of the door 100, forming a continuous sealing area, improving the overall sealing performance of the door frame strip 1 on the door 100, making the fit between the door frame strip 1 and the door 100 tighter and more uniform, and effectively preventing dust, rainwater, noise, etc. from entering the vehicle.

[0057] Furthermore, because both the upper frame 10 and the lower frame 11 are U-shaped, and the upper frame 10 is located above the lower frame 11, this design ensures that the overall height of the lower frame 11 remains above a certain level when the vehicle is wading through water. Under the action of the compression part 30 of the lower frame 11, this effectively prevents water from seeping into the vehicle from the lower frame 11, thus improving the vehicle's water wading protection capability.

[0058] To improve the sealing performance of the aforementioned door frame strip 1, such as Figure 2 , Figure 3 As shown, a toothed structure 90 with alternating protrusions and grooves is also formed on the side wall of the inner side of the opening groove 21. The toothed structure 90 can match the outer contour of the frame body 200 to increase the fit and sealing area with the frame body 200, thereby improving the sealing effect.

[0059] Optionally, in one embodiment provided in this disclosure, the upper frame 10 and the lower frame 11 can be integrally formed. This integrally formed design can improve the overall structural strength of the door frame strip 1, reduce manufacturing costs and complexity, and enhance the overall aesthetics of the vehicle.

[0060] Alternatively, in other embodiments provided in this disclosure, the upper frame 10 and the lower frame 11 may be manufactured separately and then connected after manufacturing. This disclosure does not limit this.

[0061] Optionally, such as Figure 2 , Figure 3As shown, the door frame strip 1 may further include at least one clamping strip 40. An opening groove 21 is formed on one side of the fixing portion 20, extending along the length of the fixing portion 20. The clamping strip 40 is located within the opening groove 21 and abuts against the frame body 200. The clamping strip 40 is connected to the side wall of the opening groove 21 and extends obliquely towards the bottom wall of the opening groove 21. When the door frame strip 1 is installed onto the frame body 200, the clamping strip 40 abuts against the frame body 200, increasing the tightness of the connection between the door frame strip 1 and the frame body 200, preventing the door frame strip 1 from loosening or shifting, and improving the stability and reliability of the door frame strip 1 installation.

[0062] Furthermore, the clamping strip 40, which extends obliquely toward the bottom of the opening slot 21, provides less resistance when assembling the frame body 200 into the opening slot 21, thus facilitating the assembly between the two. When the door frame strip 1 is driven to move away from the frame body 200, the clamping strip 40 provides greater resistance, thereby preventing the door frame strip 1 from detaching from or loosening from the frame body 200, and improving the stability and firmness of the fit between the two.

[0063] like Figure 2 As shown, the door frame strip 1 may also include a sealant layer 50, which covers the bottom wall of the opening groove 21. On the one hand, the sealant layer 50 can further enhance the sealing performance between the door frame strip 1 and the frame body 200, preventing moisture, dust, etc. from entering the frame interior from the opening groove 21, thus playing a role in waterproofing and dustproofing. On the other hand, the sealant layer 50 set on the bottom wall of the opening groove 21 can also buffer the vibration and impact between the door frame strip 1 and the frame body 200 to a certain extent.

[0064] In one exemplary embodiment provided in this disclosure, the sealant layer 50 may be made of butyl rubber.

[0065] like Figure 2 , Figure 3 As shown, optionally, the door frame strip 1 may also include a support frame 80 with a U-shaped cross-section. The support frame 80 is embedded in the fixing part 20, and the opening slot 21 is formed in the internal space of the support frame 80. The U-shaped support frame 80 provided in the fixing part 20 can provide a certain strength for the door frame strip 1, so that when the door frame strip 1 is assembled to the vehicle frame body 200, the support frame 80 can provide a certain clamping force.

[0066] Optionally, such as Figure 2 , Figure 3As shown, the door frame strip 1 may further include a first sealing strip 60, which is connected to the fixing part 20. The first sealing strip 60 is disposed outside the opening groove 21 and extends along the opening direction of the opening groove 21. By providing the first sealing strip 60 outside the opening groove 21 and extending it along the opening direction of the opening groove 21, external substances such as water and dust can be further prevented from seeping in from the opening, thus enhancing the sealing effect.

[0067] For the first sealing strip 60 connected to the lower frame 11, the first sealing strip 60 extends downward and can block the water flow between the fixed part 20 side (dry area) and the squeezing part 30 side (wet area), so as to prevent water located on the squeezing part 30 side from seeping into the fixed part 20 side through that point during the vehicle wading through water.

[0068] Optionally, such as Figure 2 , Figure 3 As shown, the door frame strip 1 may also include a second sealing strip 70, which extends obliquely toward the bottom wall of the opening groove 21. The second sealing strip 70 and the clamping strip 40 are respectively connected to two oppositely arranged side walls of the opening groove 21. In this way, when the frame body 200 is assembled into the opening groove 21, the clamping strip 40 and part of the second sealing strip 70 located in the opening groove 21 can abut against the frame body 200 from both sides, thereby increasing the contact area with the frame body 200 and improving the sealing effect.

[0069] In addition, such as Figure 2 , Figure 3 As shown, the second sealing strip 70 and the pressing strip 40 are located on both sides of the opening groove 21. This layout can optimize the pressure distribution and effectively avoid window frame deformation caused by pressure concentration on one side of the frame body 200.

[0070] Optionally, such as Figures 2 to 3 As shown in this disclosure, the clamping strip 40 and the second sealing strip 70 can be staggered. This staggered arrangement prevents them from overlapping when subjected to external forces, instead distributing the force to different parts of the opening groove 21. For example, when vibrations occur during vehicle operation, the second sealing strip 70 and the clamping strip 40 can absorb a portion of the vibration energy from different positions, avoiding localized damage caused by concentrated force, thus extending the service life of the door frame strip 1 and improving its overall structural stability.

[0071] According to a second aspect of the present disclosure, a door assembly is provided, including a door 100 and a door frame strip 1 as described above, wherein the pressing portion 30 of the door frame strip 1 is used to abut against the door 100. By applying the door frame strip 1 to the door assembly, the sealing effect between the door 100 and the vehicle frame can be significantly improved, while reducing the strength requirements of the window frame, and reducing the weight and manufacturing cost of the door assembly.

[0072] When the door assembly using the door frame strip 1 is subjected to greater pressure (deeper wading depth), it can still ensure that water does not enter the vehicle through the door frame strip 1 for a certain period of time.

[0073] According to a third aspect of the present disclosure, a vehicle is provided, including a frame body 200 and a door frame strip 1 or a door assembly as described above. By applying the door frame strip 1 to the vehicle, and by using a cross-sectional shape different between the pressing portion 30 of the upper frame 10 and the pressing portion 30 of the lower frame 11, the pressure exerted by the pressing portion 30 of the upper frame 10 on the door 100 is less than the pressure exerted by the pressing portion 30 of the lower frame 11 on the door 100. On the one hand, when the pressing portion 30 of the lower frame 11 presses against the door 100, it can exert greater pressure on the door 100, thereby achieving a better sealing effect and preventing liquid leakage when the vehicle is wading through water. The water seeps into the vehicle from bottom to top through the gap between the extrusion part 30 of the lower frame 11 and the door 100, increasing the vehicle's wading depth. On the other hand, the pressure exerted by the extrusion part 30 of the upper frame 10 on the upper part of the door 100 (window frame) is relatively small. Therefore, while achieving a seal on the window frame, it can also effectively avoid the risk of deformation or damage to the window frame due to excessive pressure. In this way, there is no need to strengthen or thicken the window frame, reducing manufacturing materials and weight, which is more conducive to vehicle lightweighting.

[0074] In addition, it should be noted that this disclosure does not limit the specific location of the aforementioned door assembly on the vehicle. For example, the door assembly can be the front door assembly or the rear door assembly of the vehicle.

[0075] It should be noted that the vehicles mentioned above can be cars, trucks, vans, etc., and can be pure electric vehicles, hybrid electric vehicles (range-extended electric vehicles), etc. This disclosure does not limit them.

[0076] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0078] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A door frame strip, characterized in that, It includes an upper frame and a lower frame, wherein the upper frame is connected above the lower frame; Both the upper frame and the lower frame include a fixing part and a pressing part that are connected to each other. The fixing part is used to connect with the vehicle frame body, and the pressing part is used to abut against the door. The pressure exerted on the door by the compression part of the upper frame is less than the pressure exerted on the door by the compression part of the lower frame, so that the sealing performance of the door by the compression part of the upper frame is different from that of the door by the compression part of the lower frame.

2. The door frame strip according to claim 1, characterized in that, The sealing performance of the upper frame's compression portion to the car door is less than that of the lower frame's compression portion to the car door.

3. The door frame strip according to claim 1, characterized in that, The wall thickness S of the extrusion part of the upper frame is the same as the wall thickness D of the extrusion part of the lower frame.

4. The door frame strip according to claim 3, characterized in that, The cross-sectional shape of the extrusion part of the upper frame is different from that of the extrusion part of the lower frame.

5. The door frame strip according to claim 3, characterized in that, The cross-sectional shape of the extrusion part of the upper frame is the same as that of the extrusion part of the lower frame, and the extrusion part of the lower frame has a reinforcing structure inside.

6. The door frame strip according to claim 1, characterized in that, The wall thickness S of the extrusion section of the upper frame is less than the wall thickness D of the extrusion section of the lower frame.

7. The door frame strip according to claim 6, characterized in that, The wall thickness S of the extrusion part of the upper frame is 1.2mm~1.5mm, and the wall thickness D of the extrusion part of the lower frame is 1.8mm~2.5mm.

8. The door frame strip according to claim 6, characterized in that, The extrusion section is formed as a hollow structure with an internal cavity. The extrusion section includes a connecting wall and a deformable wall. The deformable wall is connected to the fixing section through the connecting wall. The wall thickness of the deformable wall of the upper frame is less than the wall thickness of the deformable wall of the lower frame.

9. The door frame strip according to claim 8, characterized in that, At least one vent hole is also formed on the deformable wall, and the vent hole penetrates the deformable wall along the thickness direction of the deformable wall.

10. The door frame strip according to claim 1, characterized in that, The upper frame and the lower frame are each formed in a U-shape, and together they form a ring structure.

11. The door frame strip according to any one of claims 1-10, characterized in that, The upper frame and the lower frame are integrally formed.

12. The door frame strip according to any one of claims 1-10, characterized in that, The door frame strip also includes at least one clamping strip. An opening groove is formed on one side of the fixing part. The opening groove extends along the length direction of the fixing part. The clamping strip is located in the opening groove and is used to abut against the frame body. The clamping strip is connected to the side wall of the opening groove and extends obliquely toward the bottom wall of the opening groove.

13. The door frame strip according to claim 12, characterized in that, The door frame strip also includes a sealant layer that covers the bottom wall of the opening groove.

14. The door frame strip according to claim 12, characterized in that, The door frame strip also includes a first sealing strip, which is connected to the fixing part. The first sealing strip is disposed outside the opening groove and extends along the opening direction of the opening groove.

15. The door frame strip according to claim 12, characterized in that, The door frame strip also includes a second sealing strip, which extends obliquely toward the bottom wall of the opening groove; the second sealing strip and the pressing strip are respectively connected to two opposite side walls of the opening groove.

16. The door frame strip according to claim 15, characterized in that, The clamping strip is offset from the second sealing strip.

17. A door assembly, characterized in that, Includes a vehicle door and a door frame strip according to any one of claims 1-16, wherein the pressing portion of the door frame strip is used to abut against the vehicle door.

18. A vehicle, characterized in that, It includes the main body of the vehicle frame and the door frame strip as described in any one of claims 1-16 or the door assembly as described in claim 17.

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