Door window frame, door and vehicle

Abstract

The vehicle door window frame, vehicle door and vehicle claimed in the present application, the vehicle door window frame comprises a door inner plate, a window frame reinforcing plate, a reinforcing beam and a filler, the window frame reinforcing plate is installed on the door inner plate, and a containing cavity is formed between the window frame reinforcing plate and the door inner plate; the reinforcing beam is accommodated in the containing cavity; the filler is filled in the containing cavity, and the filler is connected with the reinforcing beam, the door inner plate and / or the window frame reinforcing plate respectively to limit and fix the reinforcing beam between the door inner plate and the window frame reinforcing plate. The vehicle door window frame can realize overall cross-section common force when the vehicle door is closed, so that the uniformity of force transmission of the vehicle door window frame in the force process can be improved, thereby improving the bending stiffness, torsional stiffness and impact resistance of the vehicle door window frame. By such arrangement, not only the vibration and noise generated in the closing process of the vehicle door window frame can be suppressed, but also the lightweight and structural strength of the vehicle door window frame are synergistically optimized.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-related technology, specifically relating to a car door and window frame, a car door, and a vehicle. Background Technology

[0002] As a key load-bearing and collision-resistant component in vehicle doors, the performance of door and window frames directly affects the door's stiffness, modal characteristics, and collision safety. Specifically, during the door closing process, the door's sealing ring and the vehicle body frame are pressed against each other, generating a significant reaction force that acts on the door and window frames. At the same time, vibrations during vehicle operation and impact loads during collisions also require door and window frames to possess good structural strength.

[0003] Currently, car door and window frames typically consist of an inner door panel and a window frame reinforcement plate. The window frame reinforcement plate is fixed to the inner door panel by welding, screwing, or riveting, creating multiple discrete fixing points between the reinforcement plate and the inner door panel. However, when the door is closed, the force on this type of door and window frame concentrates at these fixing points, resulting in significant stress concentration. This leads to poor modal characteristics of the door and window frame, making it prone to vibration and noise during door closing. Summary of the Invention

[0004] In view of this, it is necessary to provide a door and window frame, a door, and a vehicle. By setting a reinforcing beam in the cavity between the inner panel of the door and the reinforcing plate of the window frame, and filling it with a filler, the door and window frame can achieve overall cross-sectional load-bearing under stress, thereby improving its bending, torsional, and impact resistance. This not only helps to reduce vibration and noise when the door is closed, but also achieves synergistic optimization of lightweighting and structural strength.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A car door window frame, the car door window frame comprising:

[0007] Inner door panel;

[0008] A window frame reinforcing plate is installed on the inner panel of the door, and a cavity is formed between the window frame reinforcing plate and the inner panel of the door.

[0009] A reinforcing beam is housed within the receiving cavity;

[0010] A filler is provided, which is filled into the accommodating cavity and connected to the reinforcing beam, the inner door panel, and / or the window frame reinforcing plate, respectively, so as to limit and fix the reinforcing beam between the inner door panel and the window frame reinforcing plate.

[0011] Understandably, by installing a reinforcing beam within the cavity formed between the inner door panel and the window frame reinforcement plate, and using filler to limit and fix the reinforcing beam, the entire cross-section of the door and window frame can share the load when the door is closed. This improves the uniformity of force transmission during the stress process, thereby enhancing its bending stiffness, torsional stiffness, and impact resistance. This design suppresses vibration and noise generated during door closing, thus improving the user experience. Furthermore, due to the high structural strength of the door and window frame, its dimensions can be reduced while maintaining or even improving structural strength, achieving lightweight design goals and thus synergistically optimizing the lightweight design and structural strength of the door and window frame.

[0012] In one embodiment, the reinforcing beam has multiple cavities inside, each cavity extending along the length of the reinforcing beam, and the cavities are independent of each other.

[0013] Understandably, by incorporating multiple independent cavities extending along the length of the reinforcing beam, not only can the beam's moment of inertia, bending, torsional, and impact resistance be improved, but the independence of these cavities can also limit the spread of local deformation, thereby enhancing the stability of force transmission under load and facilitating weight reduction. This design further reduces vibration and noise in the door and window frame during door closure and optimizes the synergistic effect between weight reduction and structural strength.

[0014] In one embodiment, the reinforcing beam extends along the inner periphery of the door window frame and passes through the receiving cavity.

[0015] Understandably, by setting the reinforcing beam to extend along the inner periphery of the door and window frame and penetrate the receiving cavity, the reinforcing beam can continuously cover the entire inner periphery area of ​​the door and window frame, thereby increasing the coverage area of ​​the door and window frame structural reinforcement. This design ensures that the vibration and noise generated by the door and window frame during door closing can be suppressed, while also taking into account both the lightweight design and structural strength of the door and window frame, achieving synergistic optimization between the two.

[0016] In one embodiment, the reinforcing beam includes a first reinforcing portion, a second reinforcing portion, and a third reinforcing portion. The first reinforcing portion and the third reinforcing portion are disposed on both sides of the second reinforcing portion and are respectively connected to the second reinforcing portion. Furthermore, the first reinforcing portion and the third reinforcing portion are both located below the second reinforcing portion in the vehicle height direction.

[0017] The thickness of the filler located at the positions of the first reinforcing part and the third reinforcing part is greater than the thickness of the filler located at the position of the second reinforcing part.

[0018] Understandably, by applying filler of varying thicknesses at different locations on the reinforcing beam, the stiffness and load-bearing capacity of the door and window frame at the first and third reinforcing sections can be improved, while simultaneously achieving weight reduction at the second reinforcing section. This design balances structural strength enhancement and modal optimization without increasing the overall weight of the door and window frame, thereby helping to further reduce vibration and noise during door closing.

[0019] In one embodiment, the portion of the filler located at the first reinforcing portion and / or the third reinforcing portion is designated as the filler body, and the thickness of the portion of the filler body below the vehicle height direction is greater than the thickness of the portion of the filler body above the vehicle height direction.

[0020] It is understandable that by limiting the thickness of the filler body at the locations of the first and / or third reinforcing parts to be greater in the lower part of the vehicle height direction than in the upper part, a thickened reinforcing structure can be formed in the lower part of the filler body in the vehicle height direction. This configuration, on the one hand, allows for a concentrated increase in the local stiffness and load-bearing capacity of the door and window frame in the lower part of the vehicle height direction without increasing the weight of the frame; on the other hand, it further improves the mass distribution of the door and window frame, enhances its modal characteristics, and thus more effectively suppresses vibration and noise during door closing, achieving a refined synergy between structural strength and lightweighting.

[0021] In one embodiment, the reinforcing beam includes a first reinforcing portion, a second reinforcing portion, and a third reinforcing portion. The first reinforcing portion and the third reinforcing portion are disposed on both sides of the second reinforcing portion and are respectively connected to the second reinforcing portion. Furthermore, the first reinforcing portion and the third reinforcing portion are both located below the second reinforcing portion in the vehicle height direction.

[0022] The filler is disposed at the positions of the first reinforcing part and the third reinforcing part.

[0023] Understandably, by placing the filler only at the first and third reinforcing sections of the reinforcing beam located below the vehicle height, the filler can be integrated into the areas of the door and window frame that experience high stress and require high stiffness, thereby achieving a localized improvement in the load-bearing capacity and deformation resistance of those areas. Simultaneously, since no filler is placed at the second reinforcing section of the reinforcing beam, the weight of the door and window frame above the vehicle height can be effectively reduced, optimizing the overall mass distribution and improving modal characteristics, thus helping to further reduce vibration and noise of the door and window frame during door closing.

[0024] In one embodiment, the reinforcing beam abuts against the window frame reinforcing plate; and the reinforcing beam and the window frame reinforcing plate are connected by fasteners.

[0025] Understandably, using fasteners to connect and fix the abutting reinforcing beam to the window frame reinforcing plate not only achieves pre-installation fixation between the reinforcing beam and the window frame reinforcing plate, facilitating subsequent filling with filler, but also complements the filler's positioning and fixation of the reinforcing beam, further improving the stability of the reinforcing beam's installation position between the door inner panel and the window frame reinforcing plate. Furthermore, using fasteners simplifies the assembly process of the reinforcing beam, thereby helping to improve the production efficiency of the door window frame.

[0026] In one embodiment, the filler is an epoxy resin.

[0027] Understandably, by filling the cavity containing the reinforcing beam with epoxy resin, the epoxy resin, after being injected into the cavity, can fill the gaps between the reinforcing beam and the inner door panel and window frame reinforcing plate, and then cure. This allows the reinforcing beam to be bonded to the inner door panel and window frame reinforcing plate into an integral composite structure. This design further reduces vibration and noise of the door and window frame during door closing and further optimizes the synergistic effect between the lightweight design and structural strength of the door and window frame.

[0028] This application also provides a vehicle door, including the aforementioned door window frame.

[0029] This application also provides a vehicle including the aforementioned door and window frames;

[0030] Alternatively, it could include the car doors mentioned above.

[0031] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0032] The door and window frame, door, and vehicle claimed in this application are designed to achieve uniform force distribution across the entire cross-section of the door and window frame when the door is closed. This improves the uniformity of force transmission during stress distribution, thereby enhancing the bending stiffness, torsional stiffness, and impact resistance. This design also suppresses vibration and noise generated during door closure, improving the user experience. Furthermore, the high structural strength of the door and window frame allows for a reduction in size while maintaining or even improving structural strength, achieving lightweight design goals and thus synergistically optimizing both lightweight design and structural strength. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a partial sectional view of the vehicle door provided in this application.

[0035] Figure 2 This is a cross-sectional view of the car door and window frame in this application at the location of the first reinforcing part in the reinforcing beam.

[0036] Figure 3 This is a sectional view of the car door and window frame in this application at the location of the second reinforcing part in the reinforcing beam.

[0037] Figure 4 This is a sectional view of the car door and window frame in this application at the location of the third reinforcing part in the reinforcing beam.

[0038] Reference numerals: 10, inner door panel; 20, window frame reinforcing plate; 30, reinforcing beam; 301, cavity; 31, first reinforcing part; 32, second reinforcing part; 33, third reinforcing part; 40, filler; 41, filler body; 100, door window frame; 101, receiving cavity; 102, fastener; 110, inner periphery; 1000, door. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0044] like Figures 1 to 4As shown, the door window frame 100 provided in this application is applied in a door 1000. The door window frame 100 includes a door inner panel 10, a window frame reinforcing plate 20, a reinforcing beam 30, and a filler 40. The window frame reinforcing plate 20 is installed on the door inner panel 10, and a receiving cavity 101 is formed between the window frame reinforcing plate 20 and the door inner panel 10. The reinforcing beam 30 is received in the receiving cavity 101. The filler 40 is filled in the receiving cavity 101, and the filler 40 is connected to the reinforcing beam 30, the door inner panel 10, and / or the window frame reinforcing plate 20 to limit and fix the reinforcing beam 30 between the door inner panel 10 and the window frame reinforcing plate 20. This design allows the entire cross-section of the door and window frame 100 to share the load when the door 1000 is closed, improving the uniformity of force transmission and thus enhancing its bending stiffness, torsional stiffness, and impact resistance. This configuration also suppresses vibration and noise generated during door 1000 closure, improving the user experience. Furthermore, the high structural strength of the door and window frame 100 allows for a reduction in size while maintaining or even improving structural strength, achieving lightweight design goals and thus synergistically optimizing the lightweight and structural strength of the door and window frame 100.

[0045] It should be noted that, because the door and window frame 100 of this application has good bending stiffness, torsional stiffness, and impact resistance, the door and window frame 100 of this application can use a smaller cross-sectional size to meet its structural strength design requirements, thereby contributing to the lightweighting of the door and window frame 100. At the same time, based on the smaller cross-sectional size of the door and window frame 100, when the door with the door and window frame 100 installed is applied to a vehicle, the cross-sectional size of the vehicle's A-pillar can be correspondingly reduced, thereby improving the driver's visibility while driving.

[0046] like Figures 2 to 4 As shown, in one embodiment, the window frame reinforcing plate 20 is welded to the inner door panel 10. This ensures the sealing of the connection between the window frame reinforcing plate 20 and the inner door panel 10, thereby creating conditions for the subsequent filling of the filler 40 into the accommodating cavity 101. Of course, this is not the only option. For those skilled in the art, the window frame reinforcing plate 20 and the inner door panel 10 can also be connected by screwing, riveting, or other methods, using the abutting portion between the window frame reinforcing plate 20 and the inner door panel 10 to achieve a seal.

[0047] like Figure 1As shown, in one embodiment, the reinforcing beam 30 extends along the inner periphery 110 of the door window frame 100 and penetrates the receiving cavity 101. This allows the reinforcing beam 30 to continuously cover the entire inner periphery 110 area of ​​the door window frame 100, thereby increasing the coverage of the structural reinforcement of the door window frame 100. This arrangement ensures that the vibration and noise generated by the door window frame 100 during the closing of the door 1000 can be suppressed, while taking into account both the lightweight and structural strength of the door window frame 100, achieving synergistic optimization between the two. Of course, it is not limited to this. For those skilled in the art, the reinforcing beam 30 may also extend along the inner periphery 110 of the door window frame 100, in which case the reinforcing beam 30 may only occupy a part of the receiving cavity 101; or, the number of reinforcing beams 30 may also be set to multiple, with multiple reinforcing beams 30 distributed sequentially at intervals along the extension direction of the inner periphery 110 of the door window frame 100, which will not be elaborated further here.

[0048] like Figures 2 to 4 As shown, in one embodiment, the reinforcing beam 30 has multiple cavities 301 inside, all extending along the length of the reinforcing beam 30, and each cavity 301 is independent of the others. That is, the reinforcing beam 30 in this embodiment is configured as a multi-cavity structure. This not only improves the moment of inertia of the reinforcing beam 30 section and its bending, torsional, and impact resistance, but also utilizes the independence of the multiple cavities 301 to limit the diffusion of local deformation of the reinforcing beam 30, thereby improving the stability of force transmission under stress and facilitating weight reduction. This configuration further reduces the vibration and noise of the door / window frame 100 during the closing process of the door 1000, and further optimizes the synergistic effect between the weight reduction and structural strength of the door / window frame 100.

[0049] The number of cavities 301 is set to S, where S satisfies 3 ≤ S ≤ 6. Here, the number of cavities 301 in the reinforcing beam 30 is set to 4, and the 4 cavities 301 are symmetrically distributed in pairs on the cross-section of the reinforcing beam 30. Of course, this is not the only possibility; for those skilled in the art, the number of cavities 301 in the reinforcing beam 30 can also be set to 3, 5, or 6, etc., which will not be elaborated here. It should be noted that the above-mentioned reinforcing beam 30 can be integrally formed from aluminum profiles through an extrusion process, so that the cavities 301 of the reinforcing beam 30 can be formed simultaneously with the reinforcing beam 30, thereby facilitating the production and manufacturing of the reinforcing beam 30.

[0050] like Figures 2 to 4As shown, in one embodiment, the reinforcing beam 30 includes a first reinforcing part 31, a second reinforcing part 32, and a third reinforcing part 33. The first reinforcing part 31 and the third reinforcing part 33 are disposed on both sides of the second reinforcing part 32 and are respectively connected to the second reinforcing part 32; and the first reinforcing part 31 and the third reinforcing part 33 are both located below the second reinforcing part 32 in the vehicle height direction Z. It should be noted that in this reinforcing beam 30, the first reinforcing part 31 is the part located at the position of the vehicle A-pillar, the third reinforcing part 33 is the part located at the position of the vehicle B-pillar, and the first reinforcing part 31 and the third reinforcing part 33 are both disposed at the root position of the door window frame 100; while the second reinforcing part 32 is disposed at the upper position of the door window frame 100.

[0051] Please continue to refer to this. Figure 2 and Figure 4 The thickness of the filler 40 located at the first reinforcing part 31 and the third reinforcing part 33 is greater than the thickness of the filler 40 located at the second reinforcing part 32. This results in the filler 40 at the first reinforcing part 31 and the third reinforcing part 33 providing stronger structural reinforcement compared to its portion at the second reinforcing part 32. This configuration improves the stiffness and load-bearing capacity at the first reinforcing part 31 and the third reinforcing part 33 without increasing the overall weight of the door / window frame 100, while simultaneously achieving weight reduction at the second reinforcing part 32. This approach, balancing structural strength and modal optimization, helps to further reduce vibration and noise of the door / window frame 100 during the closing of the door 1000. Of course, this is not the only possibility; those skilled in the art may also place the filler 40 only at the locations corresponding to the first reinforcing part 31 and the third reinforcing part 33 within the accommodating cavity 101, which will not be elaborated further here.

[0052] like Figure 2 , Figure 4 As shown, in this embodiment, the portion of the filler 40 located at the positions of the first reinforcing part 31 and / or the third reinforcing part 33 is designated as the filler body 41. The thickness of the filler body 41 below the vehicle height direction Z is greater than the thickness of the filler body 41 above the vehicle height direction Z. In other words, the filler 40 can form a thickened reinforcing structure for the first reinforcing part 31 and / or the second reinforcing part 32 below the vehicle height direction Z. This configuration, on the one hand, allows for a concentrated improvement in the local stiffness and load-bearing capacity of the door / window frame 100 below the vehicle height direction Z without increasing its weight; on the other hand, it further improves the mass distribution of the door / window frame 100, enhancing its modal characteristics, thereby more effectively suppressing vibration and noise during the closing process of the door 1000, achieving a refined synergy between structural strength and lightweighting.

[0053] Here, the filler body 41 in the filler 40 simultaneously fills the portion of the accommodating cavity 101 corresponding to the locations of the first reinforcing part 31 and the third reinforcing part 33. Of course, it is not limited to this. For those skilled in the art, the filler body 41 described above may only fill the portion of the accommodating cavity 101 corresponding to the location of the first reinforcing part 31 or the third reinforcing part 33, which will not be elaborated here.

[0054] Preferably, the thickness of the filler body 41 gradually decreases from bottom to top along the vehicle height direction Z, forming a gradual distribution that is thinner at the top and thicker at the bottom. This design avoids stress concentration caused by abrupt changes in the thickness of the filler body 41, which helps to further optimize the force transmission path of the door and window frame 100 when under stress, thereby further suppressing vibration and noise during the closing process of the door 1000, and achieving a refined synergy between structural strength and lightweight of the door and window frame 100.

[0055] like Figures 1 to 4 As shown, in one embodiment, the reinforcing beam 30 abuts against the window frame reinforcing plate 20; and the reinforcing beam 30 and the window frame reinforcing plate 20 are connected by fasteners 102. That is, the reinforcing beam 30 is connected and fixed to the window frame reinforcing plate 20 by means of an external connector. In this way, not only can the pre-installation and fixation between the reinforcing beam 30 and the window frame reinforcing plate 20 be achieved, which facilitates the subsequent filling of the filler 40, but it can also complement the limiting and fixing of the reinforcing beam 30 by the filler 40, further improving the stability of the installation position of the reinforcing beam 30 between the inner door panel 10 and the window frame reinforcing plate 20.

[0056] Here, the fastener 102 is set as a rivet, and the assembly connection between the reinforcing beam 30 and the window frame reinforcing plate 20 can be achieved by riveting. This setting helps to simplify the assembly process of the reinforcing beam 30, thereby helping to improve the production efficiency of the door window frame 100. Specifically, during the assembly of the door window frame 100 of this application, the reinforcing beam 30 can be fixed to the window frame reinforcing plate 20 by rivets, and then the filler 40 can be injected into the receiving cavity 101 that accommodates the reinforcing beam 30. The overall assembly of the door window frame 100 can be completed by the curing of the filler 40. Of course, it is not limited to this. For those skilled in the art, the fastener 102 can also be set as a bolt, pin, etc., which will not be described in detail here.

[0057] Please continue to refer to this. Figures 1 to 4 The number of fasteners 102 is set to multiple, and the multiple fasteners 102 are distributed sequentially at intervals along the length direction of the reinforcing beam 30. It should be noted that the specific number of the fasteners 102 and the spacing between two adjacent fasteners 102 can be designed according to actual usage requirements, and will not be elaborated here.

[0058] In one embodiment, the filler 40 is epoxy resin, which, after being injected into the accommodating cavity 101 containing the reinforcing beam 30, fills the gap between the reinforcing beam 30 and the inner door panel 10 and the window frame reinforcing plate 20 and cures, thereby bonding the reinforcing beam 30 to the inner door panel 10 and the window frame reinforcing plate 20 into an integral composite structure. This configuration further reduces vibration and noise of the door and window frame 100 during the closing process of the door 1000, and further optimizes the synergistic effect between the lightweight and structural strength of the door and window frame 100. Of course, this is not the only option; those skilled in the art can also use materials such as aluminum foam as the filler 40, which will not be elaborated further here.

[0059] In summary, the door and window frame 100 of this application uses a multi-cavity reinforcing beam 30 as the rigid skeleton of its cross-section, and uses epoxy resin to fill the gaps in the accommodating cavity 101, so that the inner door panel 10, the reinforcing beam 30, and the window frame reinforcing plate 20 are connected into an integral structure by epoxy resin. This design not only improves the bending, torsional, and impact resistance of the door and window frame 100, and helps reduce the vibration and noise generated by the door and window frame 100 when the door 1000 is closed, but also achieves synergistic optimization of the lightweight and structural strength of the door and window frame 100.

[0060] This application also provides a vehicle door, including the vehicle door window frame 100 described above.

[0061] This application also provides a vehicle including the door and window frame 100 described above; or, including the door described above.

[0062] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Those skilled in the art should recognize that the above-described embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A car door window frame, characterized in that, The door window frame (100) includes: Inner door panel (10); A window frame reinforcing plate (20) is installed on the inner panel of the door (10), and a cavity (101) is formed between the window frame reinforcing plate (20) and the inner panel of the door (10). A reinforcing beam (30) is housed within the receiving cavity (101); A filler (40) is filled in the receiving cavity (101), and the filler (40) is connected to the reinforcing beam (30), the inner door panel (10) and / or the window frame reinforcing plate (20) respectively, so as to limit and fix the reinforcing beam (30) between the inner door panel (10) and the window frame reinforcing plate (20).

2. The car door window frame according to claim 1, characterized in that, The reinforcing beam (30) has multiple cavities (301) inside, and the multiple cavities (301) extend along the length direction of the reinforcing beam (30), and the multiple cavities (301) are independent of each other.

3. The car door window frame according to claim 1, characterized in that, The reinforcing beam (30) extends along the inner periphery (110) of the door window frame (100) and passes through the receiving cavity (101).

4. The car door window frame according to claim 1, characterized in that, The reinforcing beam (30) includes a first reinforcing part (31), a second reinforcing part (32), and a third reinforcing part (33). The first reinforcing part (31) and the third reinforcing part (33) are disposed on both sides of the second reinforcing part (32) and are respectively connected to the second reinforcing part (32). Furthermore, the first reinforcing part (31) and the third reinforcing part (33) are both located below the second reinforcing part (32) in the vehicle height direction. The thickness of the filler (40) located at the positions of the first reinforcing part (31) and the third reinforcing part (33) is greater than the thickness of the filler (40) located at the position of the second reinforcing part (32).

5. The car door window frame according to claim 4, characterized in that, The portion of the filler (40) located at the position of the first reinforcing part (31) and / or the third reinforcing part (33) is designated as the filler body (41), and the thickness of the portion of the filler body (41) below the vehicle height direction is greater than the thickness of the portion of the filler body (41) above the vehicle height direction.

6. The vehicle door window frame according to claim 1, characterized in that, The reinforcing beam (30) includes a first reinforcing part (31), a second reinforcing part (32), and a third reinforcing part (33). The first reinforcing part (31) and the third reinforcing part (33) are disposed on both sides of the second reinforcing part (32) and are respectively connected to the second reinforcing part (32). Furthermore, the first reinforcing part (31) and the third reinforcing part (33) are both located below the second reinforcing part (32) in the vehicle height direction. The filler (40) is disposed at the positions of the first reinforcing part (31) and the third reinforcing part (33).

7. The vehicle door and window frame according to claim 1, characterized in that, The reinforcing beam (30) abuts against the window frame reinforcing plate (20); and the reinforcing beam (30) and the window frame reinforcing plate (20) are connected by fasteners (102).

8. The vehicle door window frame according to claim 1, characterized in that, The filler (40) is an epoxy resin.

9. A vehicle door, characterized in that, Includes the door window frame (100) as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the door window frame (100) as described in any one of claims 1 to 8; Alternatively, it may include the door (1000) as described in claim 9.

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