Vehicle door sealing structure, vehicle door sealing device and vehicle

Abstract

The utility model discloses a vehicle door sealing structure, a vehicle door sealing device and a vehicle, and belongs to the technical field of vehicles. The elastic sealing strip is in a long strip shape and extends along a closed loop path, the closed loop path is arranged along the edge of the automobile door inner metal plate, and the elastic sealing strip is provided with at least one containing cavity. The air bags are arranged in the containing cavities, and each containing cavity is provided with at least one air bag. The air bag is not expanded in the vehicle door closing process, and the force needed for closing the vehicle door is small; under the wading condition, the air bag in the containing cavity can support the elastic sealing strip, and the waterproof performance is further improved; the waterproof performance can be improved, meanwhile, the influence on the low-temperature opening and closing performance of the vehicle door opening and closing system and the vehicle door is small, and the user experience and the NVH performance are both considered.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a vehicle door sealing structure, a vehicle door sealing device and a vehicle. Background Art

[0002] When designing a vehicle, wading conditions are taken into consideration, and a reserved wading depth is provided for daily use. However, in the event of a flood or urban waterlogging emergency, the actual wading depth of the vehicle is often deeper. In this case, insufficient sealing performance of the door will cause water to seep into the cockpit, making it impossible to protect the interior environment of the vehicle. In the prior art, the waterproof sealing strips of the doors are all improved in waterproof performance by increasing the compression amount and load, but this will increase the force required to close the door, greatly affecting the door opening and closing system and the low-temperature opening and closing performance of the door, thereby reducing the user experience and failing to take into account the NVH performance. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vehicle door sealing structure, a vehicle door sealing device and a vehicle, which meet the waterproof performance requirements by arranging an airbag in the elastic sealing strip while avoiding the situation that affects the opening and closing of the vehicle door and the NVH performance.

[0004] According to the first aspect of the embodiment of the utility model, the vehicle door sealing structure includes: a vehicle door inner panel, an elastic sealing strip and an airbag; the elastic sealing strip is in the shape of an elongated strip, the elastic sealing strip extends along a closed-loop path, the closed-loop path is arranged along the edge of the vehicle door inner panel, the elastic sealing strip has at least one accommodating cavity; the airbag is arranged in the accommodating cavity, and each of the accommodating cavities is provided with at least one of the airbags.

[0005] According to some embodiments of the present invention, the accommodating cavity and the airbag are both in the shape of long strips and extend along the length direction of the elastic sealing strip.

[0006] According to some embodiments of the present invention, a plurality of the accommodating cavities are arranged along the length direction of the elastic sealing strip.

[0007] According to some embodiments of the present utility model, one end of the cross section of the elastic sealing strip is connected to the inner door panel, and the other end is in a semicircular arc shape.

[0008] According to some embodiments of the present invention, the airbag is connected to an end of the accommodating cavity close to the inner door panel.

[0009] The vehicle door sealing device according to the second aspect of the embodiment of the utility model includes the vehicle door sealing structure, and also includes an inflation and exhaust element and an inflation and exhaust pipe, wherein the inflation and exhaust pipe is respectively connected to the inflation and exhaust element and the airbag.

[0010] According to some embodiments of the present utility model, the door sealing device further includes a control unit for controlling the inflation and deflation element, and the control unit is electrically connected to the inflation and deflation element.

[0011] According to some embodiments of the present utility model, the door sealing device further includes a liquid level sensor for sensing the wading depth of the door.

[0012] According to some embodiments of the present utility model, the door sealing device further includes an opening and closing sensor for sensing the opening and closing state of the door.

[0013] A vehicle according to a third aspect of the embodiments of the present utility model includes the door sealing device described above.

[0014] The door sealing structure, the door sealing device and the vehicle according to the embodiments of the present utility model have at least the following beneficial effects:

[0015] The present utility model optimizes the waterproof performance when the door is closed through the elastic sealing strip: during the closing process of the door, the airbag is not inflated, and the force required to close the door is small; in the case of wading, the airbag in the accommodating cavity can support the elastic sealing strip, further improving the waterproof performance; while improving the waterproof performance, it has little impact on the door opening and closing system and the low-temperature opening and closing performance of the door, taking into account both the user experience and the NVH performance.

[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] Figure 1 is a cross-sectional view of an elastic sealing strip according to an embodiment of the present utility model;

[0018] Figure 2 is a cross-sectional view of an elastic sealing strip according to an embodiment of the present utility model;

[0019] Figure 3 is a three-dimensional schematic diagram of a door sealing device according to an embodiment of the present utility model.

[0020] Reference Numerals in the Drawings:

[0021] Inner door panel 100;

[0022] Elastic sealing strip 200; Accommodating cavity 210;

[0023] Airbag 300;

[0024] Inflation and deflation element 400; Inflation and deflation pipe 410;

[0025] Control unit 500;

[0026] Outer panel 600 of the side wall Specific implementation mode

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, the meaning of "a plurality" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If the first and the second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, it should be noted that terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0031] The technical solution of the present utility model will be clearly and completely described below with reference to the drawings. Obviously, the embodiments described below are some, but not all, of the embodiments of the present utility model.

[0032] As Figure 1 and Figure 2 shown, the door sealing structure of the present utility model includes a door inner panel 100, an elastic sealing strip 200, and an airbag 300.

[0033] The elastic sealing strip 200 of this embodiment is in a long strip shape and is arranged along a closed-loop path. The closed-loop path extends along the edge of the door inner panel 100. The elastic sealing strip 200 has at least one accommodation cavity 210. The airbag 300 is arranged in the accommodation cavity 210. Each accommodation cavity 210 is provided with at least one airbag 300.

[0034] When the vehicle door is closed, the inner panel 100 of the door can press the elastic sealing strip 200 against the outer panel 600 of the vehicle body side, and the elastic sealing strip 200 elastically abuts against the outer panel 600 of the vehicle body side to form a waterproof structure at the edge of the door. The compression amount and load of the elastic sealing strip 200 are small, which can achieve daily waterproofing, and the force value required when the door is closed is also small, providing a better user experience. As Figure 2 shown, in the case of wading, the airbag 300 provided in the accommodation cavity 210 expands to support the elastic sealing strip 200, increasing the abutting pressure between the elastic sealing strip 200 and the outer panel 600 of the vehicle body side, and further improving the waterproof performance.

[0035] The elastic sealing strip 200 in this embodiment is made of an elastic material, which is soft and elastic, can deform when pressed, and can return to its original state after the pressure is released. The commonly used materials for the elastic sealing strip 200 include, but are not limited to, polyvinyl chloride (PVC), ethylene propylene diene monomer rubber (EPDM), and polypropylene modified with synthetic rubber (PP-EPDM), etc.

[0036] The accommodation cavity 210 in this embodiment is strip-shaped and extends along the length direction of the elastic sealing strip 200. As Figure 1 shown, one end of the cross-section of the elastic sealing strip 200 is connected to the inner panel 100 of the door, and the other end is in a semi-circular arc shape. The accommodation cavity 210 is provided in the elastic sealing strip 200. The cross-section of the elastic sealing strip 200 specifically refers to the cross-section obtained when the elastic sealing strip 200 is intercepted by a plane perpendicular to the length direction of the elastic sealing strip 200. The accommodation cavity 210 is provided in the elastic sealing strip 200, which increases the compression amount of the elastic sealing strip 200, makes the door closing operation more convenient, and after the door is closed, the deformation of the elastic sealing strip 200 when it abuts against the outer panel 600 of the vehicle body side is greater, reducing the performance requirements for the material of the elastic sealing strip 200 itself. The connection method between the elastic sealing strip 200 and the inner panel 100 of the door can adopt existing connection structures, which will not be described in detail here.

[0037] In this embodiment, the number of the accommodation cavities 210 is one. The strip-shaped elastic sealing strip 200 extends along a closed-loop path, and the strip-shaped accommodation cavity 210 runs through the entire elastic sealing strip 200. The number of the airbags 300 is one. The airbag 300 is in a long strip ring shape, and the airbag 300 runs through the entire accommodation cavity 210 along an annular path.

[0038] As Figure 1As shown, the airbag 300 of this embodiment is connected to one end of the accommodation cavity 210 close to the inner door panel 100. When the airbag 300 is inflated and expanded, it can support one end of the elastic sealing strip 200 away from the inner door panel 100, increasing the elastic extrusion force with the outer side panel 600 and enhancing the waterproof performance. When the airbag 300 is not inflated and expanded, it can contract at one end of the accommodation cavity 210 close to the inner door panel 100, without hindering the deformation of the elastic sealing strip 200, thus avoiding the influence on the door opening and closing system and the low-temperature opening and closing performance of the door.

[0039] The present invention also provides a door sealing device, which includes the above-mentioned door sealing structure, and further includes an air charging and discharging element 400 and an air charging and discharging pipe 410. The air charging and discharging element 400 is fixedly connected to the inner door panel 100. The air charging and discharging pipe 410 is respectively communicated with the air charging and discharging element 400 and the airbag 300.

[0040] By connecting the air charging and discharging element 400 and the airbag 300 through the air charging and discharging pipe 410, the air charging and discharging element 400 can realize the inflation and deflation of the airbag 300, so as to realize the inflation and expansion and deflation and contraction of the airbag 300. The air charging and discharging element 400 refers to a device or component that can control the inflow and outflow of gas, and can be configured as an existing air charging and discharging pump or an air charging and discharging motor in the air charging and discharging equipment.

[0041] The door sealing device of this embodiment further includes a control unit 500, and the control unit 500 is used to control the air charging and discharging element 400.

[0042] The control unit 500 can adopt existing control components, generally including electronic components such as a pressure detection sensor and a control circuit board. The control unit 500 can detect the air pressure at the output port of the air charging and discharging element 400, and control the start and stop of the air charging and discharging element 400 according to the detected air pressure signal. Specifically, when it is necessary to enter the wading mode, the control unit 500 controls the air charging and discharging element 400 to start for inflation until the detected air pressure signal reaches a preset value to ensure the sealing effect of the elastic sealing strip 200.

[0043] Furthermore, the door sealing device of this embodiment further includes a liquid level sensor and an opening and closing sensor.

[0044] The liquid level sensor is used to sense the wading depth of the vehicle door. The liquid level sensor of this embodiment is electrically connected to the control unit 500. When the liquid level sensor detects that the water depth outside the vehicle exceeds a threshold value, an electrical signal is output to the control unit 500. If the door sealing device is not in the wading mode, the inflation and exhaust element 400 is started to inflate the airbag 300, increase the pressure of the elastic sealing strip 200, and enter the wading mode. When the liquid level sensor detects that the water depth outside the vehicle does not reach the threshold value, another electrical signal is output to the control unit 500. If the vehicle is in the wading mode, the inflation and exhaust element 400 is started to exhaust the airbag 300, release the compressed gas in the elastic sealing strip 200, reduce the pressure of the elastic sealing strip 200, and exit the wading mode.

[0045] The opening and closing sensor is used to sense the opening and closing state of the door. When the opening and closing sensor detects that the door is opened, it outputs a signal to the control unit 500 to make the door sealing device exit the wading mode, ensuring that the airbag 300 is in a contracted state, preventing the door from being unable to be closed due to low temperature or excessive reaction force of the sealing strip, while also improving NVH performance.

[0046] In some other embodiments, the number of the airbags 300 is multiple. The multiple airbags 300 are arranged along the length direction of the accommodating cavity 210, and the multiple inflation and exhaust components 400 are connected to the multiple airbags 300 in a one-to-one or one-to-many manner through inflation and exhaust pipes 410. In some other embodiments, the number of the accommodating cavities 210 is multiple, and the multiple accommodating cavities 210 are arranged along the length direction of the elastic sealing strip 200. Each accommodating cavity 210 is provided with multiple airbags 300.

[0047] This embodiment also provides a vehicle, comprising the above-mentioned door sealing device.

[0048] The vehicle can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle needs to have an electric motor that can output power or store mechanical energy as a generator. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0049] The multiple doors of the vehicle are all provided with door sealing devices. Figure 1 As shown, the control unit 500 and the inflation and exhaust element 400 are both arranged in the middle of the vehicle door. The control unit 500 and the inflation and exhaust element 400 are both arranged in the closed area surrounded by the elastic sealing strip 200.

[0050] In actual use, the user can issue a high-priority command to the door sealing device through the vehicle's central control to actively enter or exit the wading mode. As is well known to those of ordinary skill in the art, communication between the vehicle's central control and the door sealing device, as well as between the control unit 500 and the liquid level sensor and the opening / closing sensor, is achieved through a communication medium. The communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium.

[0051] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the relevant technical field.

Claims

1. A vehicle door sealing structure, characterized in that: include: Door inner panel; An elastic sealing strip, the elastic sealing strip is in the shape of an elongated strip, the elastic sealing strip is arranged along a closed loop path, the closed loop path extends along the edge of the door inner plate, and the elastic sealing strip has at least one accommodating cavity; An airbag is arranged in the accommodating cavity, and each accommodating cavity is provided with at least one airbag.

2. The vehicle door sealing structure according to claim 1, characterized in that: The accommodating cavity is in the shape of an elongated strip and extends along the length direction of the elastic sealing strip.

3. The vehicle door sealing structure according to claim 1, characterized in that: The plurality of accommodating cavities are arranged along the length direction of the elastic sealing strip.

4. The vehicle door sealing structure according to claim 1, characterized in that: One end of the cross section of the elastic sealing strip is connected to the door inner panel, and the other end is in a semicircular arc shape.

5. The vehicle door sealing structure according to claim 4, characterized in that: The airbag is connected to one end of the accommodating cavity close to the inner door panel.

6. A vehicle door sealing device, characterized in that: A vehicle door sealing structure comprising the vehicle door sealing structure according to any one of claims 1 to 5; It also includes an inflation and exhaust element and an inflation and exhaust pipe, and the inflation and exhaust pipe is respectively connected to the inflation and exhaust element and the airbag.

7. The vehicle door sealing device according to claim 6, characterized in that: It also includes a control unit, which is used to control the inflation and exhaust components, and the control unit is electrically connected to the inflation and exhaust components.

8. The vehicle door sealing device according to claim 7, characterized in that: The vehicle also includes a liquid level sensor, which is used to sense the wading depth of the vehicle door.

9. The vehicle door sealing device according to claim 7, characterized in that: It also includes an opening and closing sensor, which is used to sense the opening and closing state of the vehicle door.

10. A vehicle, characterized in that: The vehicle door sealing device comprises the vehicle door sealing device as claimed in any one of claims 6 to 9.

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