Vehicle door water cutting assembly, vehicle door and vehicle

By setting a limiting component on the inner water cutter, the glass is supported to avoid excessive compression, which solves the problems of abnormal noise and wear during the raising and lowering of frameless door glass, and improves the vehicle's quality of use and sealing performance.

CN224130855UActive Publication Date: 2026-04-17ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During the raising and lowering of frameless car door windows, the inner water cutter, due to excessive compression caused by the pre-bending design, produces abnormal noise and wear, affecting the vehicle's quality of use and sealing performance.

Method used

A limiting element is installed on the inner water cutter, with its length protruding from the main body being less than that of the lip. This element supports the glass, prevents excessive pressure on the inner water cutter, and reduces noise and wear.

Benefits of technology

By using limiting components to support the glass, the pressure of the glass on the inner water cutter is reduced, thereby reducing abnormal noise and wear, and improving the sound quality and sealing performance of the glass lifting mechanism.

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Abstract

The utility model relates to a vehicle door water cutting assembly, a vehicle door and a vehicle. The vehicle door water cutting assembly comprises a supporting plate, an inner water cutting part and a limiting part. The inner belt line comprises a main body part and a lip part, the main body part is connected to the supporting plate, and the lip part protrudes out of the end face, away from the supporting plate, of the main body part. The limiting piece is fixedly connected to the main body part and at least partially protrudes out of the end face, connected with the lip part, of the main body part, and the length of the limiting piece protruding out of the main body part is smaller than that of the lip part protruding out of the main body part when no force is applied. According to the scheme, in the lifting process of the glass, the glass firstly makes contact with the lip edge part of the inner water cutting part, the limiting piece plays a jacking role when the glass overpresses the inner water cutting part so as to support the glass, the glass is prevented from excessively extruding the lip edge part of the inner water cutting part, and then the problems of lifting abnormal sound, abrasion and the like caused by extrusion of the glass to the inner water cutting part are reduced; the sound product for lifting the glass is realized.
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Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to door water-cutting components, doors, and vehicles. Background Technology

[0002] Frameless doors abandon the fixed window frame structure of traditional doors, resulting in a more streamlined vehicle shape and a significantly improved overall quality, making them popular with consumers who seek individuality and a premium experience. As a core component ensuring the normal operation of the door windows, the frameless door window regulator is crucial for maintaining the overall performance and quality of the frameless door; its importance cannot be overstated.

[0003] To accommodate the lack of sheet metal window frames above the window sill in frameless car doors, the window regulator is pre-bent in whole or in part. By changing the stress state of the glass during the lifting process, it meets the functional requirements of the frameless car door window lifting, allowing the glass to better fit the car body when closed, improving the door's sealing performance and sound insulation, while also ensuring the stability of the window lifting to a certain extent.

[0004] The pre-bending design of the glass significantly increases the compression of the inner water-cutting shear, especially when the door is open. This excessive compression due to the pre-bending causes excessive pressure between the glass and the inner water-cutting shear, resulting in significantly increased friction during window operation. This not only easily causes abnormal noises, affecting vehicle quality and passenger comfort, but also accelerates the wear of the inner water-cutting shear, reducing its sealing performance and lifespan. This can lead to potential problems such as increased interior noise and leaks, severely damaging the vehicle's overall performance and reliability. Furthermore, with prolonged use and increased mileage, excessive wear of the inner water-cutting shear may further exacerbate window operation problems such as jamming and abnormal noises, increasing maintenance costs and after-sales service burden, which is detrimental to the long-term development and brand image of automakers. Utility Model Content

[0005] Therefore, it is necessary to provide a door water cutter assembly, door, and vehicle to address the problem of abnormal noise caused by excessive pressure on the inner water cutter during the lifting and lowering of frameless car door windows.

[0006] A door weatherstripping assembly includes a support plate, an inner weatherstripper, and a limiting member. The inner weatherstripper includes a main body and a lip portion. The main body is connected to the support plate, and the lip portion protrudes from the end face of the main body facing away from the support plate. The limiting member is fixedly connected to the main body and at least partially protrudes from the end face of the main body where the lip portion connects. The length of the limiting member protruding from the main body is less than the length of the lip portion protruding from the main body when no force is applied.

[0007] In one embodiment, the limiting member is located at one end of the inner water-cutting extension direction.

[0008] In one embodiment, the inner water cut includes a first segment and a second segment connected to each other, the first segment and the second segment being arranged sequentially along the extension direction of the inner water cut, and the hardness of the second segment being greater than that of the first segment, and the limiting member being connected to the second segment.

[0009] In one embodiment, the limiting member includes an abutting portion protruding from the end face of the main body away from the support plate, the end face of the abutting portion away from the main body being an abutting surface, and the connecting surface between the abutting surface and the peripheral surface of the abutting portion being an arc-shaped surface.

[0010] In one embodiment, the limiting member further includes a support portion that protrudes from the end face of the main body facing the support plate, and the support portion is capable of abutting against the support plate when subjected to force.

[0011] In one embodiment, the inner water cut is provided with a mounting hole that penetrates the main body, and the limiting member includes a connecting portion that passes through the mounting hole. The diameter of the connecting portion is smaller than the maximum diameter of the limiting member on the side of the main body facing away from the support plate.

[0012] In one embodiment, the number of the lips is at least two, the lips are connected to the same end face of the main body and are distributed vertically, and the limiting member is located between the two lips.

[0013] In one embodiment, the limiting member is made of polyoxymethylene resin material.

[0014] A vehicle door includes a door water-cutting assembly as described in any of the above embodiments, and further includes a liftable glass, wherein a limiting member is located on one side of the theoretical lifting path of the glass, and the limiting member abuts against the glass during the lifting of the glass to interfere with the actual lifting path of the glass, wherein the actual lifting path of the glass is offset by 2mm to 4mm relative to the theoretical lifting path of the glass.

[0015] A vehicle includes a door as described in the above embodiments, and a body having an A-pillar, the door being rotatably connected to the body, the limiting member being located at the end of the inner water-cutting section away from the A-pillar.

[0016] The door water-cooling component provided in the above solution, by setting a limiting member connected to the inner water-cooling, and making the length of the limiting member protruding from the main body less than the length of the lip protruding from the main body when no force is applied, can, on the one hand, avoid the limiting member being longer than the lip and interfering with the sealing and waterproofing effect of the inner water-cooling. On the other hand, during the raising and lowering of the glass, the glass first contacts the lip of the inner water-cooling. The limiting member plays a supporting role when the glass exerts excessive pressure on the inner water-cooling, so as to support the glass and prevent the glass from excessively squeezing the lip of the inner water-cooling. This reduces problems such as abnormal noise and wear caused by the glass squeezing the inner water-cooling, thereby improving the sound quality of glass raising and lowering. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the door water-cutting assembly in one embodiment of this application. Figure 1 .

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the CRRC door water cutter assembly Figure 2 .

[0019] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram.

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the CRRC door water cutter assembly.

[0021] Figure 5 for Figure 4 A cross-sectional structural diagram of the CRRC door water cutter assembly.

[0022] Figure 6 for Figure 4 A schematic diagram of the middle limiting component.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Door; 100. Door water cutter assembly; 110. Support plate; 120. Inner water cutter; 121. Main body; 122. Lip; 123. First section; 124. Second section; 130. Limiting member; 131. Abutting part; 1311. Abutting surface; 132. Supporting part; 133. Connecting part; 140. Outer water cutter; 200. Glass; 300. Interior panel; 400. Exterior panel. Detailed Implementation

[0025] 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.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] One embodiment of this application provides a vehicle, which can be of any type and any drive configuration, without limitation. The vehicle includes a door 10 as described in any of the following embodiments, and also includes a body with A-pillars, wherein the A-pillars are pillars on both sides of the windshield 200, located at the front of the vehicle, between the windshield 200 and the front door 10. The door 10 is rotatably connected to the body. The limiting member 130 is located at the end of the inner water cutter 120 away from the A-pillar. This is related to the degree of compression of the inner water cutter 120 at different positions after the glass 200 is pre-bent. In this embodiment, after the glass 200 is pre-bent, the end of the inner water cutter 120 away from the A-pillar is subjected to more severe compression during the lifting and lowering process. Therefore, the limiting member 130 is located at the end of the inner water cutter 120 away from the A-pillar, but this is not a limitation.

[0032] In some embodiments, the vehicle body also includes a B-pillar, which is spaced apart from the A-pillar. The B-pillar is located on the side of the vehicle, between the front door 10 and the rear door 10, and is a key component of the side structure of the vehicle body. In this case, the door 10 is rotatably connected between the A-pillar and the B-pillar, and the limiting member 130 described below is located at the end of the inner water cutter 120 near the B-pillar.

[0033] See Figure 1 , Figure 1A schematic diagram of the structure of a car door 10 according to an embodiment of this application is shown. The car door 10 provided in this application can be applied to the above-mentioned vehicle. The car door 10 includes a car door water cutter assembly 100 as described in any of the following embodiments, and also includes a liftable glass 200, wherein the glass 200 may be partially or entirely pre-bent, or it may be a conventional glass 200, without limitation.

[0034] like Figure 1 and Figure 2 As shown, the door 10 also includes an interior trim panel 300 and an exterior trim panel 400. The exterior trim panel 400 is located on the outer side of the glass 200, and the interior trim panel 300 is located on the inner side of the glass 200. Both are used to beautify the door 10. Figure 1 and Figure 2 In the middle, due to the obstruction of the interior panel 300, the following support plate 110 is not numbered.

[0035] Combination Figure 2 and Figure 3 As shown, Figure 2 This diagram illustrates a structural schematic of the door 10 from another perspective in one embodiment of this application. The limiting member 130 is located on one side of the theoretical lifting path of the glass 200, where the theoretical lifting path refers to the lifting path of the glass 200 in theory, without the action of the limiting member 130. (In conjunction with...) Figure 3 As shown, the limiting member 130 abuts against the glass 200 during the lifting and lowering process to interfere with the actual lifting and lowering path of the glass 200. It can be understood that the actual lifting and lowering path refers to the path of the glass 200 lifting and lowering under the action of the limiting member 130.

[0036] exist Figure 2 In this diagram, the glass 200 in the actual lifting path (the lifting path after interference from the limiting member 130) is indicated by a dashed line, while the glass 200 in the theoretical lifting path (the lifting path without interference from the limiting member 130) is indicated by a solid line. This is for illustrative purposes only and is not intended to be limiting. In this embodiment, the actual lifting path of the glass 200 is offset by 2mm to 4mm from the theoretical lifting path of the glass 200. Due to differences in vehicle models or the material or structure of the inner water cutter 120 in the door water cutter assembly 100 described below, the length of the limiting member 130 protruding from the main body 121 of the inner water cutter 120 is not necessarily linearly related to the interference of the limiting member 130 on the lifting path of the glass 200. In practical applications, the interference amount of the lifting path of the glass 200 can be experimentally compared based on different lengths of the limiting member 130 protruding from the support plate 110, and then the length of the limiting member 130 protruding from the main body 121 corresponding to the interference amount of the limiting member 130 on the lifting path of the glass 200 being 2mm to 4mm can be selected.

[0037] Combination Figure 4 As shown, Figure 4 A schematic diagram of a door water-cutting assembly 100 according to an embodiment of this application is shown. This application provides a door water-cutting assembly 100 that can be applied to the aforementioned door 10. Figure 4 As shown, the door water cutter assembly 100 includes a support plate 110, an inner water cutter 120, and a limiting member 130. Exemplarily, in this embodiment, the support plate 110 is a sheet metal door 10.

[0038] Combination Figure 3 and Figure 5 As shown, the inner water cutter 120 includes a main body portion 121 and a lip portion 122, as... Figures 3 to 5 As shown, the main body 121 is connected to the support plate 110. In this embodiment, the main body 121 has a bent structure and covers the top of the support plate 110, but this is not a limitation. Figure 3 and Figure 5 As shown, the lip portion 122 protrudes from the end face of the main body portion 121 away from the support plate 110, as... Figure 2 and Figure 3 As shown, the glass 200 is located on the side of the support plate 110 facing the lip 122. During the lifting and lowering of the glass 200, the glass 200 will squeeze the lip 122 and cause the lip 122 to deform.

[0039] like Figure 3 As shown, in this embodiment, the door water-cutting assembly 100 also includes an outer water-cutting 140. During the lifting and lowering of the glass 200, the outer water-cutting 140 and the inner water-cutting 120 are located on both sides of the glass 200 and are in close contact with the glass 200, thereby achieving a sealing and waterproofing effect.

[0040] like Figure 3 and Figure 5 As shown, the limiting member 130 is fixedly connected to the main body 121 and at least partially protrudes from the end face of the connecting lip 122 of the main body 121, as... Figure 5 As shown, the length of the limiting member 130 protruding from the main body 121 is less than the length of the lip 122 protruding from the main body 121 when no force is applied. On the one hand, this can prevent the limiting member 130 from being longer than the lip 122 and interfering with the sealing and waterproofing effect of the inner water cutter 120. On the other hand, during the lifting and lowering of the glass 200, the glass 200 first contacts the lip 122 of the inner water cutter 120. The limiting member 130 plays a supporting role when the glass 200 puts excessive pressure on the inner water cutter 120, thereby supporting the glass 200 and preventing the glass 200 from excessively squeezing the lip 122 of the inner water cutter 120. This reduces problems such as lifting and lowering noise and wear caused by the squeezing of the glass 200 on the inner water cutter 120, and improves the sound quality of lifting and lowering the glass 200.

[0041] In one embodiment, the limiting member 130 is made of polyoxymethylene resin material, which has excellent wear resistance and good self-lubricating properties, and can be used for more than 200 lifting and lowering of the glass, while avoiding abnormal noise between the glass 200 and the limiting member 130.

[0042] like Figure 4 As shown, in one embodiment, the limiting member 130 is located at one end of the extending direction of the inner water cutter 120. In this embodiment, the extending direction of the inner water cutter 120 is consistent with the longitudinal direction of the vehicle. In this embodiment, in the longitudinal direction, the limiting member 130 is located at the rear end of the inner water cutter 120, but this is not a limitation, and the limiting member 130 may also be located at other positions of the inner water cutter 120, such as the middle or the front end.

[0043] like Figure 1 and Figure 4 As shown, in one embodiment, the inner water cutter 120 includes a first segment 123 and a second segment 124 connected to each other. The first segment 123 and the second segment 124 are arranged sequentially along the extending direction of the inner water cutter 120. In this embodiment, the first segment 123 and the second segment 124 are joined at an angle, making the inner water cutter 120 a single structure. The hardness of the second segment 124 is greater than that of the first segment 123, and the flexibility of the first segment 123 is stronger than that of the second segment 124. The limiting member 130 is connected to the second segment 124 so that the second segment 124 can also play a supporting role for the glass 200.

[0044] like Figure 5 and Figure 6 As shown, in one embodiment, the limiting member 130 includes an abutting portion 131 that protrudes from the end face of the main body 121 away from the support plate 110. The end face of the abutting portion 131 away from the main body 121 is an abutting surface 1311. The connecting surface between the abutting surface 1311 and the peripheral surface of the abutting portion 131 is an arc-shaped surface, so that the contact between the glass 200 and the limiting member 130 is smoother during the lifting and lowering process.

[0045] like Figure 5 and Figure 6 As shown, in one embodiment, the limiting member 130 further includes a support portion 132. The support portion 132 protrudes from the end face of the main body 121 facing the support plate 110, and the support portion 132 can abut against the support plate 110 when subjected to force, so that when the glass 200 squeezes the limiting member 130, the end of the limiting member 130 away from the glass 200 can be supported on the support plate 110, thereby preventing the limiting member 130 from shifting due to the squeezing of the glass 200, thereby obtaining a better support effect for the glass 200.

[0046] like Figure 5As shown, in one embodiment, the inner water cutter 120 has a mounting hole that penetrates the main body 121, and the limiting member 130 includes a connecting portion 133 that passes through the mounting hole, such as... Figure 5 and Figure 6 As shown, the diameter of the connecting part 133 is smaller than the maximum diameter of the limiting member 130 located on the side of the main body 121 away from the support plate 110, so as to prevent the limiting member 130 from disengaging from the inner water cutter 120.

[0047] like Figure 5 As shown, in one embodiment, there are at least two lip portions 122. The lip portions 122 are connected to the same end face of the main body portion 121 and are distributed vertically. The limiting member 130 is located between the two lip portions 122, so that the limiting member 130 and the lip portions 122 exert uniform and stable support force on the glass 200.

[0048] The door water-cooling assembly 100 provided in the above solution, by setting a limiting member 130 connected to the inner water-cooling cutter 120, and making the length of the limiting member 130 protruding from the main body 121 less than the length of the lip 122 protruding from the main body 121 when no force is applied, can, on the one hand, avoid the limiting member 130 being longer than the lip 122 and interfering with the sealing and waterproofing effect of the inner water-cooling cutter 120. On the other hand, during the lifting and lowering of the glass 200, the glass 200 first contacts the lip 122 of the inner water-cooling cutter 120. The limiting member 130 plays a supporting role when the glass 200 over-presses the inner water-cooling cutter 120, so as to support the glass 200 and avoid the glass 200 excessively squeezing the lip 122 of the inner water-cooling cutter 120, thereby reducing the lifting and lowering noise and wear caused by the squeezing of the glass 200 on the inner water-cooling cutter 120, and improving the sound quality of the lifting and lowering of the glass 200.

[0049] The technical features of the above 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.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water-cutting assembly for a vehicle door, comprising: The door water-cutting assembly includes: Support plate; An internal water cutter includes a main body and a lip portion, the main body being connected to the support plate, and the lip portion protruding from the end face of the main body away from the support plate; and A limiting member is fixedly connected to the main body and at least partially protrudes from the end face of the main body where it connects to the lip portion. The length of the limiting member protruding from the main body is less than the length of the lip portion protruding from the main body when no force is applied.

2. The water-cutting assembly of claim 1, wherein, The limiting member is located at one end in the direction of the inner water cut extension.

3. The water-cutting assembly of claim 1, wherein, The inner water cut includes a first segment and a second segment connected to each other. The first segment and the second segment are arranged sequentially along the extension direction of the inner water cut, and the hardness of the second segment is greater than that of the first segment. The limiting member is connected to the second segment.

4. The door water cut assembly of claim 1, wherein, The limiting member includes an abutting portion protruding from the end face of the main body away from the support plate. The end face of the abutting portion away from the main body is the abutting surface, and the connecting surface between the abutting surface and the peripheral surface of the abutting portion is an arc-shaped surface.

5. The door water cut assembly of claim 1, wherein, The limiting member also includes a support portion, which protrudes from the end face of the main body facing the support plate, and the support portion can abut against the support plate when subjected to force.

6. The door water cut assembly of claim 1, wherein, The inner water cut is provided with an installation hole that penetrates the main body. The limiting member includes a connecting part that passes through the installation hole. The diameter of the connecting part is smaller than the maximum diameter of the limiting member on the side of the main body facing away from the support plate.

7. The door water cut assembly of claim 1, wherein, The number of the lip portions is at least two, the lip portions are connected to the same end face of the main body and are distributed vertically, and the limiting member is located between the two lip portions.

8. The water-cutting assembly of claim 4, wherein, The limiting component is made of polyoxymethylene resin material.

9. A vehicle door, characterized by The device includes a door water-cutting assembly as described in any one of claims 1 to 8, and further includes a liftable glass, wherein the limiting member is located on one side of the theoretical lifting path of the glass, and the limiting member abuts against the glass during the lifting process to interfere with the actual lifting path of the glass, wherein the actual lifting path of the glass is offset from the theoretical lifting path of the glass by 2 mm to 4 mm.

10. A vehicle characterized by comprising: The vehicle includes the door as described in claim 9, and also includes a vehicle body having an A-pillar, the door being rotatably connected to the vehicle body, and the limiting member being located at the end of the inner water-cutting section away from the A-pillar.