Vehicle door silencing device and vehicle
By designing a sound silencer device including hydraulic springs and buffers on the car door, the problems of noise and safety hazards when traditional doors are closed are solved, and the balance between kinetic energy absorption and door locking is achieved.
Patent Information
- Application Number
- CN202510292255.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-06-10
AI Technical Summary
Traditional car doors are prone to noise when closed, and the balance between kinetic energy absorption and door locking is difficult to achieve, which poses safety hazards.
A door silencer device is designed, including a substrate, a buffer bracket, a cylindrical buffer member, a fixing frame, a limiting member and a hydraulic spring. The hydraulic spring dynamically adjusts its position through the interaction between the limiter and the fixture frame to absorb the kinetic energy when the door is closed, and provides buffering between the limiter and the buffer bracket through the buffer member to eliminate noise.
It effectively absorbs the kinetic energy when the door is closed, reduces noise, and ensures that the door can be locked reliably and opens smoothly, solving the problems of noise and safety hazards in traditional technology.
Smart Images
Figure CN120119862A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automobile body structures, and in particular to a door silencer device and a vehicle thereof. Background Art
[0002] Traditional car door unlocking uses a mechanical limit structure. When the door is closed with force, the limit lock directly collides with the limit buckle of the car body, producing a "bang" noise; and when the door is closed with less force, it is easy to cause the door to not be completely closed, posing a safety hazard. Although industry technicians have tried to reduce the noise by adding rubber pads, the effect is limited, and the balance problem between kinetic energy absorption and door locking has not been solved. For example, although some models use spring buffers, they cannot dynamically adapt to different closing forces, resulting in noise or loose closure.
[0003] Therefore, there is an urgent need for a door silencer that can effectively absorb kinetic energy, reduce noise, and ensure that the door can be reliably locked and opened smoothly. Summary of the invention
[0004] In order to solve the above problems, the present invention provides a vehicle door silencer and a vehicle thereof, which can effectively absorb kinetic energy and reduce noise when closing the vehicle door, and can ensure that the vehicle door can be reliably locked.
[0005] The present invention provides a vehicle door silencer device comprising: a base plate for installation on a vehicle body; a buffer bracket fixed on the base plate; a tubular buffer member sleeved on the buffer bracket; a fixing bracket for installation on the vehicle door; a limit member pivotally installed on the fixing bracket, the limit member being provided with a limit slot, and the buffer member being accommodated in the limit slot; a hydraulic spring, the two ends of the hydraulic spring being pivotally installed on the fixing bracket and the limit member respectively, the fixing bracket being used for pushing the limit member to pivot relative to the fixing bracket through the hydraulic spring under the drive of the vehicle door when the vehicle door is closed, so that the opening of the limit slot rotates toward the direction of aligning with the base plate, and for pulling the limit member to pivot relative to the fixing bracket through the hydraulic spring under the drive of the vehicle door when the vehicle door is opened, so that the opening of the limit slot rotates toward the direction away from the base plate; when the limit member pivots relative to the fixing bracket, the buffer member is used for providing a buffer between the limit member and the buffer bracket to eliminate the sound.
[0006] Optionally, the fixing frame includes a mounting plate and a first fixing plate and a second fixing plate arranged in parallel on the mounting plate, and one end of the hydraulic spring is pivotally mounted between the first fixing plate and the second fixing plate.
[0007] Optionally, a protruding first mounting block is provided on the outer side of the first fixing plate and the second fixing plate, and the first mounting block is provided with a first mounting hole for assembling with the vehicle door.
[0008] Optionally, a second mounting hole is provided on the inner side of the first fixing plate and the second fixing plate, and hydraulic spring pivots are provided at both ends of the hydraulic spring. The hydraulic spring pivot at one end of the hydraulic spring can be pivotally mounted in the second mounting hole.
[0009] Optionally, one end of the mounting plate extends to form two second mounting blocks, the second mounting blocks are further provided with two third mounting blocks arranged in parallel, the third mounting blocks are provided with a third mounting hole, the limit member is provided with a limit member pivot, and the limit member pivot can be pivotally mounted in the third mounting hole.
[0010] Optionally, a hook is provided between the two third mounting blocks for engaging with the vehicle body.
[0011] Optionally, the limiting member includes a main body and two clamping parts protruding from the main body, the main body is provided with a hydraulic spring mounting groove, a fourth mounting hole is provided in the hydraulic spring mounting groove, the hydraulic spring pivot at the other end of the hydraulic spring can be pivotally installed in the fourth mounting hole, the limiting groove is formed between the two clamping parts, and the width of the limiting groove gradually decreases in the direction away from the main body.
[0012] Optionally, an outer surface of the buffer component forms an interference fit with an inner wall of the limiting groove.
[0013] The present invention also provides a vehicle comprising any one of the door silencers provided by the present invention, a vehicle body, and a door that can be opened and closed relative to the vehicle body, wherein a substrate of the door silencer is mounted on the vehicle body, and a fixing frame of the door silencer is mounted on the door.
[0014] Optionally, the vehicle provided by the present invention further includes a connecting plate, and the fixing frame of the door silencer is connected to the door via the connecting plate.
[0015] With the above technical solution, the hydraulic spring on the fixed frame on the door is compressed under the drive of the door, providing tensile force to push the limiter to pivot relative to the fixed frame to close the door. The hydraulic spring dynamically adjusts its position according to the movement direction of the door, absorbs the kinetic energy when closing the door, and reduces the collision intensity. In addition, during this process, the opening of the limiter slot rotates in the direction of the substrate, that is, the limiter rotates relative to the buffer bracket, and the buffer located in the limiter slot buffers the contact impact between the limiter and the buffer bracket through elastic deformation. The cooperation between the hydraulic spring system and the buffer can effectively absorb kinetic energy and reduce noise, and ensure that the door can be reliably locked. When opening the door, the hydraulic spring releases tension to open the door smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0017] The meaning of the reference numerals in the figure are as follows: 100-vehicle silencer, 200-body, 300-door, 400-connecting plate, 10-base plate, 11-threaded mounting hole, 20-buffer bracket, 30-buffer member, 40-fixed frame, 41-mounting plate, 42-first fixed plate, 43-second fixed plate, 44-first mounting block, 441-first mounting hole, 45-second mounting block, 46-hook, 47-third mounting block, 471-third mounting hole, 50-limiting member, 51-main body, 511-hydraulic spring mounting groove, 52-clamping part, 53-limiting member pivot, 60-hydraulic spring, 61-hydraulic spring pivot, 62-spring, 63-hydraulic support rod, 64-oil storage cylinder, 641-piston, 642-oil hole.
[0018] Figure 1 It is a schematic diagram of the overall structure of a vehicle muffler device in an embodiment of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of a vehicle muffler device in an embodiment of the present invention; Figure 3 It is a schematic top view of the overall structure of the vehicle muffler device in an embodiment of the present invention; Figure 4 A schematic diagram of the overall structure of the vehicle muffler device in an embodiment of the present invention from another angle; Figure 5 It is a schematic diagram of the structure in which a vehicle silencer is installed on a vehicle body and a vehicle door in an embodiment of the present invention. DETAILED DESCRIPTION
[0019] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0021] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0022] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.
[0023] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.
[0024] Figure 1 Schematic diagram of the overall structure of a vehicle silencer in an embodiment of the present invention. Figure 2 It is a schematic cross-sectional view of the overall structure of a vehicle silencer device in an embodiment of the present invention. Figure 3 It is a schematic top view of the overall structure of the vehicle silencer device in an embodiment of the present invention. Figure 4 It is a schematic diagram of the overall structure of the vehicle silencer device in an embodiment of the present invention from another angle.
[0025] like Figure 1-4 As shown, the present embodiment provides a vehicle door silencer 100, which includes a substrate 10, a buffer bracket 20, a buffer member 30, a fixing bracket 40, a limit member 50 and a hydraulic spring 60. The limit member 50 is provided with a limit groove, and the buffer member 30 is accommodated in the limit groove. The fixing bracket 40 is used for, when the vehicle door 300 is closed, the limit member 50 is pushed by the hydraulic spring 60 to pivot relative to the fixing bracket 40 under the drive of the vehicle door 300, so that the opening of the limit groove rotates toward the direction of the substrate 10, and when the vehicle door 300 is opened, the limit member 50 is pulled by the hydraulic spring 60 to pivot relative to the fixing bracket 40 under the drive of the vehicle door 300, so that the opening of the limit groove rotates toward the direction away from the substrate 10; when the limit member 50 pivots relative to the fixing bracket 40, the buffer member 30 is used to provide a buffer between the limit member 50 and the buffer bracket 20 to eliminate the sound. Specifically, The substrate 10 is provided with a threaded mounting hole 11, and the substrate 10 is used to be mounted on the vehicle body 200 through the threaded mounting hole 11. The buffer bracket 20 is fixed on the substrate 10, and the body of the buffer bracket 20 and the substrate 10 are arranged to form a closed loop. The body of the buffer bracket 20 can be in any shape. The purpose of this design is to prevent the buffer member 30 sleeved thereon from being separated from the buffer bracket 20 without being damaged; the material of the buffer bracket 20 can be metal, alloy, engineering plastic or composite material. In this embodiment, the buffer bracket 20 is preferably arched, and the material is preferably alloy.
[0026] The buffer component 30 is cylindrical and is mounted on the buffer bracket 20. The buffer component 30 can be made of an elastic material, including but not limited to silicone, polyurethane, thermoplastic elastomer, foamed metal rubber, ordinary rubber or a composite material of rubber and fiber. In this embodiment, the low-cost rubber material is preferably used. The diameter of the cylindrical buffer component 30 is preferably 9 mm.
[0027] The fixing frame 40 is used to be installed on the vehicle door 300, and includes a mounting plate 41, a first fixing plate 42, and a second fixing plate 43. The first fixing plate 42 and the second fixing plate 43 are arranged side by side on the mounting plate 41, and the mounting plate 41, the first fixing plate 42, and the second fixing plate 43 are arranged to form a groove, and one end of the hydraulic spring 60 is pivotally installed between the first fixing plate 42 and the second fixing plate 43 and is located in the groove.
[0028] The first fixing plate 42 and the second fixing plate 43 are both provided with a protruding first mounting block 44 on the outside, and the first mounting block 44 is provided with a first mounting hole 441 for assembly with the vehicle door 300. The two first mounting blocks 44 are installed with the vehicle door 300 by bolts, further increasing the installation stability of the fixing frame 40 in the lateral direction. The first fixing plate 42 and the second fixing plate 43 are provided with a second mounting hole on the inside. One end of the mounting plate 41 extends to form two second mounting blocks 45, and the second mounting block 45 is also provided with two third mounting blocks 47 arranged in parallel, and the third mounting block 47 is provided with a third mounting hole 471. A hook 46 is provided between the two third mounting blocks 47, and the hook is provided on the crossbeam before the two third mounting blocks 47, and is used to be connected with the vehicle body 200, further enhancing the stability of the fixing frame 40. .
[0029] The limiting member 50 is pivotally mounted on the fixing frame 40, and the limiting member 50 is provided with a limiting groove, and the buffer 30 is accommodated in the limiting groove. Specifically, the limiting member 50 includes a main body 51 and two clamping parts 52 protruding from the main body 51. The limiting groove is formed between the two clamping parts 52, that is, the buffer 30 is accommodated between the two clamping parts 52, and the two clamping parts 52 gradually approach each other along the direction away from the main body 51. The width of the limiting groove gradually decreases along the direction away from the main body 51, that is, the distance between the two clamping parts 52 on the side of the limiting groove away from the main body 51 is slightly smaller than the diameter of the buffer 30, thereby preventing the buffer 30 from escaping from the limiting groove. The opening end of the limiting groove away from the main body 51 is horn-shaped, and the purpose of this design is to facilitate the installation of the cylindrical buffer 30. The main body 51 is provided with a hydraulic spring installation groove 511, which is an installation groove inclined relative to the clamping part 52, and a fourth installation hole is provided in the hydraulic spring installation groove 511. The outer surface of the buffer 30 forms an interference fit with the inner wall of the limiting groove. The purpose of the interference fit is to prevent the buffer 30 from shaking when it is subjected to pressure, and to enhance the shock absorption effect during the deformation of the buffer 30. The limiting member 50 is provided with a limiting member pivot 53, and the limiting member pivot 53 is pivotally mounted in the third mounting hole 471. The limiting member pivot 53 is preferably a latch, and the material of the latch can be stainless steel, aluminum alloy, carbon steel, titanium alloy or engineering plastic. In this embodiment, carbon steel is preferably used.
[0030] The fixing frame 40 is used to push the limiting member 50 to pivot relative to the fixing frame 40 through the hydraulic spring 60 under the drive of the vehicle door 300 when the vehicle door 300 is closed, so that the opening of the limiting groove rotates toward the direction of the substrate 10; and to pull the limiting member 50 to pivot relative to the fixing frame 40 through the hydraulic spring 60 under the drive of the vehicle door 300 when the vehicle door 300 is opened, so that the opening of the limiting groove rotates toward the direction away from the substrate 10; when the limiting member 50 pivots relative to the fixing frame 40, the buffer member 30 is used to provide a buffer between the limiting member 50 and the buffer bracket 20 to eliminate sound.
[0031] The two ends of the hydraulic spring 60 are pivotally mounted on the fixing frame 40 and the limit member 50 respectively. Specifically, hydraulic spring pivots 61 are provided at both ends of the hydraulic spring 60. The hydraulic spring pivot 61 at one end of the hydraulic spring 60 is pivotally mounted in the second mounting hole on the fixing frame 40, and the hydraulic spring pivot 61 at the other end of the hydraulic spring 60 is pivotally mounted in the fourth mounting hole of the limit member 50. The hydraulic spring 60 includes a spring, a hydraulic support rod 63 and an oil storage cylinder 64. A piston 641 is arranged in the oil storage cylinder 64. The piston 641 has an oil hole 642. When the door 300 is closed, the hydraulic support rod 63 in the hydraulic spring 60 assembly fixed on the fixed bracket moves toward the direction close to the spring under the drive of the door 300, and the spring is compressed. At this time, the hydraulic spring pivot 61 is located obliquely above the limiter 50, and the hydraulic spring 60 provides a tensile force to lock the door 300, and the hydraulic spring 60 pushes the limiter 50 to pivot relative to the fixed bracket 40, so that the opening of the limiter slot rotates toward the direction of the substrate 10. The buffer 30 located in the limiter slot absorbs the vibration generated by the collision between the limiter 50 and the buffer bracket 20 through elastic deformation, thereby reducing noise. When closing the door, the hydraulic spring pivot 61 moves to the bottom of the limiter 50, and the spring of the hydraulic spring 60 assembly releases the tension to smoothly open the door 300. Among them, the hydraulic spring pivot 61 is preferably a latch pin, and the material of the latch pin can be stainless steel, aluminum alloy, carbon steel, titanium alloy or engineering plastic. In this embodiment, carbon steel is preferred.
[0032] Figure 5 It is a schematic diagram of the structure in which a vehicle silencer is installed on a vehicle body and a vehicle door in an embodiment of the present invention.
[0033] like Figure 5 As shown, an embodiment of another aspect of the present invention further provides a vehicle including the door silencer 100 provided in the above embodiment, a vehicle body 200, a connecting plate 400 and a door 300 that can be opened and closed relative to the vehicle body 200, wherein the substrate 10 of the door silencer 100 is mounted on the vehicle body 200, and the fixing frame 40 of the door silencer 100 is mounted on the vehicle door 300. Specifically, the fixing frame 40 of the door silencer 100 is connected to the vehicle door 300 via the connecting plate 400, and the connecting plate 400 is designed to provide a mounting plane for the fixing frame 40.
[0034] Through the above embodiments, the hydraulic spring 60 adjusts its position according to the movement direction of the door 300 to absorb the kinetic energy when the door is closed. The specific process is that the hydraulic oil in the hydraulic pipeline can absorb the vibration generated by the movement of the hydraulic support rod 63 and reduce noise; the oil hole 642 on the piston 641 ensures the travel speed of the hydraulic support rod 63, thereby reducing the collision intensity when the car door is closed. The buffer part 30 buffers the contact impact through elastic deformation, and cooperates with the damping effect of the hydraulic spring 60 to achieve double noise reduction.
[0035] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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. The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A door silencer, characterized in that: include: A base plate (10) for mounting on a vehicle body; A buffer bracket (20) fixed on the base plate (10); A cylindrical buffer member (30) sleeved on the buffer bracket (20); A fixing bracket (40) for mounting on a vehicle door; a limiting member (50) pivotally mounted on the fixing frame (40), the limiting member (50) being provided with a limiting groove, the buffer member (30) being accommodated in the limiting groove; A hydraulic spring (60), wherein two ends of the hydraulic spring (60) are respectively pivotally mounted on the fixing frame (40) and the limiting member (50); The fixing frame (40) is used to, when the vehicle door is closed, push the limiting member (50) to pivot relative to the fixing frame (40) through the hydraulic spring (60) under the drive of the vehicle door, so that the opening of the limiting slot rotates in a direction aligned with the substrate (10); and when the vehicle door is opened, pull the limiting member (50) to pivot relative to the fixing frame (40) through the hydraulic spring (60) under the drive of the vehicle door, so that the opening of the limiting slot rotates in a direction away from the substrate (10); when the limiting member (50) pivots relative to the fixing frame (40), the buffer member (30) is used to provide a buffer between the limiting member (50) and the buffer bracket (20) to eliminate sound.
2. The vehicle door noise reduction device according to claim 1, characterized in that: The fixing frame (40) comprises a mounting plate (41) and a first fixing plate (42) and a second fixing plate (43) arranged in parallel on the mounting plate (41); one end of the hydraulic spring (60) is pivotally mounted between the first fixing plate (42) and the second fixing plate (43).
3. The door silencer device according to claim 2, characterized in that: The outer sides of the first fixing plate (42) and the second fixing plate (43) are both provided with a protruding first mounting block (44), and the first mounting block (44) is provided with a first mounting hole (441) for assembling with the vehicle door.
4. The vehicle door noise reduction device according to claim 3, characterized in that: A second mounting hole is provided inside the first fixing plate (42) and the second fixing plate (43), and hydraulic spring pivots (61) are provided at both ends of the hydraulic spring (60). The hydraulic spring pivot (61) at one end of the hydraulic spring (60) is pivotally mounted in the second mounting hole.
5. The vehicle door noise reduction device according to claim 4, characterized in that: One end of the mounting plate (41) extends to form two second mounting blocks (45), the second mounting blocks (45) are further provided with two third mounting blocks (47) arranged in parallel, the third mounting blocks (47) are provided with third mounting holes (471), the limiting member (50) is provided with a limiting member pivot (53), and the limiting member pivot (53) is pivotally mounted in the third mounting hole (471).
6. The vehicle door noise reduction device according to claim 5, characterized in that: A hook (46) is provided between the two third mounting blocks (47) for being engaged with the vehicle body.
7. The vehicle door noise reduction device according to claim 6, characterized in that: The limiting member (50) comprises a main body (51) and two clamping portions (52) protruding from the main body (51); the main body (51) is provided with a hydraulic spring mounting groove (511); a fourth mounting hole is provided in the hydraulic spring mounting groove (511); a hydraulic spring pivot (61) at the other end of the hydraulic spring (60) is pivotally mounted in the fourth mounting hole; the limiting groove is formed between the two clamping portions (52), and the width of the limiting groove gradually decreases in a direction away from the main body (51).
8. The vehicle door noise reduction device according to claim 7, characterized in that: The outer surface of the buffer component (30) forms an interference fit with the inner wall of the limiting groove.
9. A vehicle, characterized in that: The vehicle door silencer (100) comprises a vehicle door silencer (100) as claimed in any one of claims 1 to 8, a vehicle body (200), and a vehicle door (300) capable of being opened and closed relative to the vehicle body (200), wherein the substrate (10) of the vehicle door silencer (100) is mounted on the vehicle body (200), and the fixing frame (40) of the vehicle door silencer (100) is mounted on the vehicle door (300).
10. The vehicle according to claim 9, characterized in that It also comprises a connecting plate (400), and the fixing frame (40) of the vehicle door silencer (100) is connected to the vehicle door (300) via the connecting plate (400).