CN111411839B - Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock - Google Patents
Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock Download PDFInfo
- Publication number
- CN111411839B CN111411839B CN202010162582.9A CN202010162582A CN111411839B CN 111411839 B CN111411839 B CN 111411839B CN 202010162582 A CN202010162582 A CN 202010162582A CN 111411839 B CN111411839 B CN 111411839B
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- connecting rod
- folding
- lock
- car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/36—Noise prevention; Anti-rattling means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0041—Damping means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0045—Silencing devices; Noise reduction
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/36—Noise prevention; Anti-rattling means
- E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
Abstract
The invention belongs to the technical field of door locks, and discloses a folding noise reduction device for improving the quality of electric opening sound of a car/cabin door lock, which comprises a novel noise reduction structure combined by a folding mechanism capable of moving under stress and a porous metamaterial structure, wherein the folding mechanism actively drives array arrangement pore structures on the surface to deform in a compliant manner at the moment of stress so as to form the composite motion of a multilayer nested variable structure and the porous metamaterial; the system also has an active variable structure mode, and forms an active and passive noise reduction combined mode to control the sound quality; the multiple noise reduction mechanism is arranged between the unlocking rotary disc and the lock shell and between the unlocking rotary disc and the connecting rod with the groove. The noise reduction device has the advantages that the noise reduction is carried out by reducing the operating speed of the unlocking turntable by means of reducing the contact speed, changing rigid contact into flexible impact and limiting the extreme displacement boundary of the component, the noise of the car door lock in the resetting process is reduced by means of matching combination and sequential action of the multiple noise reduction mechanism and the folding mechanism, and the quality of the sound of the door lock is greatly improved.
Description
Technical Field
The invention relates to the technical field of motion control, in particular to a folding noise reduction device for improving the quality of electric opening sound of a car/cabin door lock.
Background
With the rapid development of the industry of carrying tools (including automobiles, airplanes and the like), the living standard of people is continuously improved, and the requirements of consumers on the sound quality and the comfort of vehicle doors and vehicle doors are continuously improved. Taking a side door lock of an automobile as an example, the comfort of sound during the opening and closing processes of the door is an important factor for the customer to select the automobile, and the sound quality of the door lock as an important component in a door system has become a hot point for developing and paying attention to the door lock. At present, the processing mode of improving the sound quality and reducing the noise of the internal mechanism of the door lock generally changes the front impact between mechanisms into tangential impact, the speed of the mechanism is reduced gradually through a molded surface, and the mode has serious abrasion to parts and low portability.
For a traditional manual unlocking door lock, only one motor for electric insurance is provided, and after a vehicle door is unlocked, a handle is manually pulled by a person to unlock the door lock. For an electric opening door lock obtained based on the improvement of the manual door lock, for example, the door lock disclosed by the patent with the application number of 201910233989.3 and the name of a novel variable-freedom-degree flexible composite pair structure electric opening door lock mechanism has a single-drive double-branch chain structure, and a variable-freedom-degree flexible connecting rod mechanism with a multi-motion mode and a reset characteristic is constructed through a novel variable-freedom-degree flexible composite pair formed by combining a rotating pair and a moving pair provided with reset torsion springs, so that a door lock transmission mechanism can be switched and reset in a reciprocating mode among multiple working conditions. After the electric opening function is added, as the movement of the opening mechanism is influenced by the interference and reduction of the manual operation characteristic, a new noise source is introduced, and the sound quality of the original car door lock is reduced.
Disclosure of Invention
The invention provides a folding noise reduction device for improving the quality of electric opening sound of a car/cabin door lock, in particular to a carrying tool, and solves the problems that the existing electric opening door lock is high in noise, the traditional noise reduction treatment is low in transportability and the like.
The invention can be realized by the following technical scheme:
a folding noise reduction device for improving the quality of electric opening sound of a car/cabin door lock, in particular to a carrying tool, comprises a lock shell, an outer opening connecting rod, an unlocking rotary disc and a connecting rod containing a groove, wherein the outer opening connecting rod, the unlocking rotary disc and the connecting rod containing a groove are arranged on the lock shell, one end of the connecting rod containing a groove is connected with a driving mechanism, the driving mechanism is used for controlling the opening and resetting of a car door lock, the other end of the connecting rod containing a groove is rotationally connected with the unlocking rotary disc, the folding noise reduction device also comprises a primary noise reduction mechanism arranged between the unlocking rotary disc and the connecting rod containing a groove and the lock shell, the primary noise reduction mechanism is used for reducing noise by reducing the operating speed of the unlocking rotary disc, a secondary noise reduction mechanism arranged between the unlocking rotary disc and the outer opening connecting rod is used for reducing the collision noise of the unlocking rotary disc and the outer opening connecting rod by changing rigid contact into flexible, the tertiary mechanism of making an uproar is used for reducing the collision noise of external-open connecting rod and lock casing through elastic deformation, falls the mechanism of making an uproar with the help of the one-level in proper order, falls the mechanism of making an uproar and the tertiary mechanism of making an uproar that falls in the second grade, reduces the noise of door lock at the reset in-process, improves lock sound quality.
Furthermore, the three-level noise reduction mechanism comprises an elastic shell, a folding mechanism is arranged in the elastic shell, the folding mechanism is of a multilayer structure, the periphery of the folding mechanism is connected with the elastic shell through springs respectively, the outer opening connecting rod moves towards the direction close to the lock shell until the outer opening connecting rod contacts the elastic shell, the folding mechanism in the outer opening connecting rod is pressed and extended, and the springs at the periphery of the folding mechanism are compressed; the outer opening connecting rod moves towards the direction far away from the lock shell, the springs on the periphery of the folding mechanism extend, and the folding mechanism contracts until the outer opening connecting rod is separated from the elastic shell.
Further, folding mechanism includes the multilayer folded sheet, the folded sheet has elasticity, includes along horizontal and vertical a plurality of folding monomers that connect gradually, folding monomer includes that the shape is the same and intersects in four parallelograms of a common point, two liang of formation ridge-shaped ridge, one is the acute angle in two adjacent angles of parallelogram, and another is the obtuse angle, four angles around the common point come from four parallelograms respectively, are acute angle, obtuse angle and obtuse angle in proper order along clockwise, two public limit between the acute angle is sunken, forms a valley structure, and the equal epirelief of public limit between the other two angles forms three peak structure, realizes the horizontal flexible of folded sheet through ridge-shaped ridge, realizes the vertical flexible of folded sheet through the valley structure.
Further, the acute angle sets up to 75 degrees to 85 degrees, the obtuse angle sets up to 95 degrees to 105 degrees, evenly be provided with a plurality of through-holes on the folding monomer.
Further, the folded sheet adopts flexible resin material to make, and multilayer folded sheet top-down even interval sets up or both reverse symmetry sets up, the elastic housing sets up the arc structure unanimous with the arc on lock housing surface, the angle that the valley structure corresponds sets up to the obtuse angle, the angle that the peak structure corresponds sets up to the acute angle.
Further, mechanism of making an uproar falls in tertiary includes the elasticity reed, the elasticity reed includes two crossing first arc pieces and second arc pieces, the radian and the lock casing of first arc piece correspond the appearance cooperation at position, the radian and the outer appearance cooperation that the connecting rod corresponds the position of opening outward of second arc piece, the crossing position of first arc piece and second arc piece links to each other with the third arc piece, encloses into a space.
Further, the space is filled with sound absorbing material or acoustic metamaterial.
Furthermore, the contact part of the outer opening connecting rod and the elastic shell or the second arc-shaped piece adopts a porous thin-wall structure.
Further, the second-stage noise reduction mechanism comprises a plastic-coated molding insert, the plastic-coated molding insert is arranged at the contact position of the unlocking turntable and the external opening connecting rod, and a groove-shaped through hole is formed in the position, close to the external opening connecting rod, on the plastic-coated molding insert.
Furthermore, the primary noise reduction mechanism comprises a torsion spring arranged on a rotating shaft of the groove-containing connecting rod and the unlocking turntable, one pin of the torsion spring is fixedly arranged on the unlocking turntable, a contact section is arranged on the groove-containing connecting rod, and in the resetting process, the torsion spring is driven by the groove-containing connecting rod to rotate until the other pin contacts the contact section, so that the torsion spring is compressed, and the rotating speed of the unlocking turntable is reduced;
the unlocking device is characterized by further comprising a straight spring arranged on the unlocking turntable and an ejector pin arranged on the lock shell, wherein in the resetting process, the straight spring is in contact with the ejector pin and is compressed, and therefore the rotating speed of the unlocking turntable is reduced.
The beneficial technical effects of the invention are as follows:
the invention respectively considers from three aspects of reducing component impact speed, changing rigid impact into flexible impact and elastic deformation, and provides a three-stage noise reduction structure which comprises a reset variable-rigidity speed reduction torsion spring arranged between a connecting rod with a groove and an unlocking turntable, and a speed reduction straight spring arranged on the lower end surface of the unlocking turntable, wherein an ejector pin is arranged at the corresponding position of a lock shell and is used for reducing the rotation speed of the unlocking turntable to reduce noise; the contact part of the unlocking turntable and the external opening connecting rod is provided with a vibration absorption structure formed by plastic coating; the elastic bending spring piece buffering structure is arranged at the contact position of the external opening connecting rod and the lock shell, the folding mechanism with holes in the surface is further provided as a third-level noise reduction structure, and through the action sequence matching combination of the three, the noise generated in the rigid collision process of the external opening connecting rod and the lock shell in the moment of opening the electric door lock is favorably avoided, the noise of the door lock in the resetting process is reduced, and the sound quality of the door lock is greatly improved.
Drawings
FIG. 1 is a first general structural diagram of the present invention;
FIG. 2 is a second schematic diagram of the overall structure of the present invention;
FIG. 3 is a third schematic view of the overall structure of the present invention;
FIG. 4 is a schematic view of the structure of the connecting rod with slot and torsion spring of the present invention;
FIG. 5 is a schematic diagram of the position structure of a straight spring on the unlocking turntable;
FIG. 6 is a schematic view showing the instant the unlocking turntable plastic-coated buffer structure contacts with the external opening connecting rod in the resetting process of the present invention;
FIG. 7 is a schematic view showing the outer open link and the unlock dial remaining in contact after the reset operation of the present invention is completed;
FIG. 8 is a structural diagram of an unlocking turntable with a plastic-coated groove-shaped buffer structure on an impact surface according to the invention;
FIG. 9 is a schematic view of the construction of the external-opening connecting rod with porous thin-walled structure of the present invention;
FIG. 10 is a schematic view of the instant the external opening lever contacts the three stage noise reduction mechanism and lock housing of the present invention;
FIG. 11 is a schematic view of the mechanism of the folding unit of the present invention;
FIG. 12 is a schematic view of the surface pore structure of the folded sheet of the present invention;
FIG. 13 is a schematic view of a nested state of the multi-fold mechanism of the present invention;
FIG. 14 is a side view of a two mode multi-fold mechanism of the present invention;
FIG. 15 is a schematic view of the mounting of the folding mechanism of the present invention;
FIG. 16 is a schematic view of a two layer folded monomer of the present invention in a stacked, stacked arrangement;
FIG. 17 is a simplified schematic view of two folded cells of the present invention in a vertex-vertex arrangement, with parallelograms of the same shape;
FIG. 18 is a simplified schematic view of two folded cells of the present invention in a vertex-vertex arrangement mode, the parallelogram shapes of the two folded cells being different;
FIG. 19 is a schematic view showing the instant the outer opening link contacts the tower coil spring in accordance with the present invention;
FIG. 20 is a schematic view of the structure of the spring reed of the present invention;
the anti-noise lock comprises, by weight, 1-a groove-containing connecting rod, 11-a contact end face, 2-a rotating shaft, 3-a torsion spring, 31-a fixed pin, 32-a movable pin, 4-an unlocking turntable, 41-a plastic-coated insert, 42-a fixed block, 5-a straight spring, 6-a lock shell, 61-a thimble, 7-an external opening connecting rod, 8-an elastic reed, 81-a first arc-shaped sheet, 82-a second arc-shaped sheet, 83-a third arc-shaped sheet, 9-a tower-type spiral spring, 10-a three-level noise reduction mechanism, 101-a folding mechanism, 102-an elastic shell and 103 springs.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings.
The invention provides a method for weakening sharp noise caused by the electric door lock with single electric drive double-branched chain by using an elastic folding mechanism with spring performance as buffering, utilizing a plastic-coated forming structure to match profile friction and utilizing an elastic bending reed with larger deformation to replace the original metal component to impact on the front surface, and further reducing the impact noise between the outer opening connecting rod made of metal and a plastic lock shell by using a deformable folding mechanism on the basis of the method.
The invention has obvious effect on weakening the rigid impact and collision between the transmission mechanism of the electric unlocking vehicle door lock and the lock shell, in particular has an elastic folding mechanism, increases the design of a buffer spring, weakens the reset speed of a mechanical device, thereby reducing the noise generated by collision, simultaneously, the folding mechanism also has a porous structure, and has certain popularization significance on the contact noise between complex mechanisms.
As shown in fig. 1, 2 and 3, the present invention provides a folding noise reduction device for improving the sound quality of electric opening of a car/hatch lock of a vehicle, particularly a vehicle, comprising a lock housing 6, an outer opening connecting rod 7 disposed on the lock housing 6, an unlocking rotary disk 4 and a slotted connecting rod 1, one end of the slotted connecting rod 1 is connected with a driving mechanism for controlling the opening and resetting of the car door lock, the other end is connected with the unlocking rotary disk 4 in a rotating manner, the unlocking rotary disk 4 is connected with the outer opening connecting rod 7 in a rotating manner, a primary noise reduction mechanism disposed between the unlocking rotary disk 4 and the slotted connecting rod 1 and the lock housing 6 is further included for reducing noise by reducing the operating speed of the unlocking rotary disk 4, a secondary noise reduction mechanism disposed between the unlocking rotary disk 4 and the outer opening connecting rod 7 is further included for making flexible contact by rigid contact, reduce unblock carousel 4 and the collision noise of outer opening connecting rod 7, the mechanism of making an uproar falls in the tertiary that sets up between outer opening connecting rod 7 and lock casing 6, this tertiary mechanism of making an uproar falls is used for through elastic deformation, reduce the collision noise of outer opening connecting rod 7 and lock casing 6, fall the mechanism of making an uproar with the help of the one-level in proper order, the mechanism and the tertiary mechanism of making an uproar fall, through the action order match combination between the three, greatly reduced door lock is opening the noise of reset in-process, improve lock sound quality.
As shown in fig. 4 and 5, the primary noise reduction mechanism is two spring devices for reducing the speed of the unlocking turntable 4 in the final stage of resetting, and comprises a torsion spring 3 arranged on a connecting rod 1 with a groove and a rotating shaft 2 of the unlocking turntable 4, wherein the torsion spring 3 adopts a variable-rigidity speed-reducing torsion spring and is arranged on the upper end surface of the unlocking turntable 4, one pin of the pin is fixedly arranged on the unlocking turntable 4 and is a fixed pin 31, the other pin is a movable pin 32, a fixed block can be arranged on the unlocking turntable 4, the fixed pin is fixed on the fixed block, the connecting rod 1 with the groove is provided with a contact end surface 11, the connecting rod 1 with the groove drives the unlocking turntable 4 to rotate in the resetting process, the fixed pin 31 of the torsion spring 3 is further driven to rotate until the movable pin 32 contacts the contact end face, the torsion spring 3 is compressed, and a rebound force is generated, so that the rotating speed of the unlocking turntable 4 is reduced; the unlocking device is characterized by further comprising a straight spring 5 arranged on the unlocking rotary disc 4, wherein the straight spring 5 is installed on the lower end face of the unlocking rotary disc 4 and acts between the unlocking rotary disc 4 and the lock shell 6, an ejector pin 61 on the lock shell 6 can rotate along with the unlocking rotary disc 4 in the resetting process until the straight spring is compressed by contacting the ejector pin, and therefore the rotating speed of the unlocking rotary disc is reduced.
Referring to fig. 2, the variable stiffness deceleration torsion spring 3 is coaxially installed with the point C, the fixed pin 31 of the torsion spring 3 is fixed by the pin fixing point 42 located on the upper surface of the unlocking turntable 4, and the movable pin 32 is not fixedly installed and contacts with the contact end surface 11 of the slotted link 1 in the final stage of resetting. Referring to fig. 4, when the electric vehicle door lock performs the final moment of the electric opening process, the movable pin 32 of the torsion spring 3 will form a certain angle with the contact end surface 11 of the torsion spring on the connecting rod 1 with the groove, and the angle is called a door lock opening angle, and at this time, the door lock is opened; along with the opening mechanism begins to do the motion of resetting, at the motion later stage of resetting, contact terminal surface 11 will contact with activity pin 32, and torsional spring 3 receives the resistance that comes from contact terminal surface 11 and is in compression state, and torsional spring 3 is compressed the production bounce this moment to reduce the slew velocity of unblock carousel 4, and then reduce the collision velocity of unblock carousel 4 and outer opening connecting rod 7, reduce the noise that produces from this.
As shown in fig. 6 and 7, the secondary noise reduction mechanism is a plastic-coated groove-shaped buffer structure mounted on the unlocking turntable 4 to avoid rigid impact between the unlocking turntable 4 and the external opening connecting rod 7, and is integrally injection-molded with the unlocking turntable by using a rubber material, and the form of the secondary noise reduction mechanism refers to fig. 8, and includes a plastic-coated insert 41 disposed at a contact portion between the unlocking turntable 4 and the external opening connecting rod 7, and a groove-shaped through hole is formed in a portion of the plastic-coated insert 41, which is close to the external opening connecting rod. In the reset process, along with the rotation of unblock carousel 4, be close to outer opening connecting rod 7 gradually, at first rather than the contact be the package mould shaping inserts 41, because it adopts the rubber material to make to set up the flute profile through-hole, convert the rigidity collision between unblock carousel 4 and the outer opening connecting rod into flexible collision, cushion this collision, simultaneously, can also pack materials such as amortization cotton in this flute profile through-hole, further improve and inhale sound noise reduction effect.
As shown in fig. 10, the three-stage noise reduction mechanism 10 can be attached to the surface of the lock case 6 and elastically deformed to reduce the impact velocity of the outer opening rod 7 relative to the lock case 6, as shown in fig. 14 and 15, and includes an elastic case 102, a folding mechanism 101 disposed inside the elastic case 102, the folding mechanism 101 having a multi-layer structure, and the four sides of the folding mechanism are respectively connected to the elastic case 102 through springs 103, and can be made of 3D printed flexible resin material, and has high toughness and certain deformation resilience. The elastic shell 102 can be an arc structure which is consistent with the arc shape of the surface of the lock shell 6, when the folding mechanism 101 is not acted by external force, the pressure of the springs 103 on the periphery enables the folding mechanism to be folded to a certain degree, the external opening connecting rod 7 gradually moves towards the direction close to the lock shell 6 along with the action of reset movement until contacting the elastic shell 102, the folding mechanism 101 in the elastic shell is expanded under pressure, the springs 103 on the periphery are compressed while the area is increased, the springs 103 are compressed to absorb kinetic energy, so that the collision speed of the external opening connecting rod 7 is reduced, and the collision noise between the external opening connecting rod 7 and the lock shell 6 is further reduced; conversely, when the external opening link 7 moves away from the lock housing 6, the compression of the folding mechanism 101 is gradually eliminated, and the surrounding springs are extended to urge the folding mechanism 101 to contract until the external opening link is out of contact with the elastic housing.
The folding mechanism 101 comprises a plurality of layers of folding plates which are arranged at equal intervals from top to bottom or symmetrically arranged in pairs in opposite directions, as shown in fig. 13, 16 and 17, each folding plate has elasticity, and comprises a plurality of folding single bodies which are sequentially connected along the transverse direction and the longitudinal direction, each folding single body comprises four parallelograms which have the same shape and are intersected at a common point, and two folding single bodies form ridge-like shapes, as shown in fig. 11 and 12, one of two adjacent angles of each parallelogram is an acute angle which can be set to be 75 degrees to 85 degrees, the other is an obtuse angle which can be set to be 95 degrees to 105 degrees, four corners around the common point are respectively from the four parallelograms and are sequentially an acute angle, an obtuse angle and an obtuse angle along the clockwise direction, the common edge between the two acute angles is concave, a valley structure is formed, the corresponding angle is set to be an obtuse angle, the common edges, the corresponding angle is set to be an acute angle, the transverse stretching of the folding plate is realized through the ridge shape, and the longitudinal stretching of the folding plate is realized through the valley structure. With reference to the schematic mechanism of the folding unit of fig. 11, the light color represents "peak" creases, the dark color represents "valley" creases, each crease can be abstracted as a revolute pair, the crease junction is abstracted as a spherical pair, and each folding unit has three "peak" creases and one "valley" crease.
Meanwhile, a pore structure can be added on the surfaces of the elastic shell 102 and each folding plate, as shown in fig. 11, a plurality of through holes can be uniformly formed and filled with a negative poisson ratio multi-cell structure with high energy absorption rate or an acoustic metamaterial capable of blocking noise in a specific frequency band, so that the sound absorption and noise reduction effects are further improved.
The connection form between the multi-layer folding plates can be divided into two types, namely a vertex-vertex mode, as shown in fig. 17, and an equal-interval stacking arrangement mode, as shown in fig. 13, 15 and 16, wherein the vertex-vertex connection mode can realize the combination of folding units with different sizes between layers, namely the shape of the parallelogram on each layer of folding plate needs to be the same, but the parallelograms on different layers can be different, especially when two layers are arranged in a reverse symmetry mode, as shown in fig. 18, the transverse and longitudinal folding can also be realized, and the functional requirements of the three-level noise reduction mechanism are met.
The folding mechanism with the pore structure can be further expanded and applied to the inside of the lock shell or the inside of the vehicle door main body to achieve the noise reduction effect. The folding component can also be used for actively reducing noise, influences the reflection of sound waves around, has the same principle and effect as a sound attenuation chamber, and when the sound waves enter from the tip of the folding mechanism, due to the gradual transition property of the sound absorption layer, the acoustic impedance of the material can be well matched with that of air, so that the sound waves are transmitted into the sound absorber and are efficiently absorbed. Compared with a static sound wedge structure, the folding mechanism has the advantages that sound waves under different frequencies can be actively absorbed by adjusting the surface pore density, the arrangement mode and the spring pre-tightening force of the multilayer folding mechanism, and different sound qualities of the lock body can be presented by combining subjective evaluation on the sound qualities.
In addition, the three-level noise reduction mechanism can be simplified into an elastic reed 8 or a tower-type spiral spring 9 which can avoid the rigid impact between the external opening connecting rod 7 and the lock shell 6, as shown in fig. 19, the elastic reed 8 can be mounted on the lock shell 6 by means of structures such as a buckle, the elastic reed 8 has a low-friction and wear-resistant surface, is made of stainless steel materials, can be integrated with the lock shell 6 by an injection molding process, as shown in fig. 20, and comprises a first arc-shaped piece 81 and a second arc-shaped piece 82 which are intersected, the radian of the first arc-shaped piece 81 is matched with the appearance of the corresponding part of the lock shell 6, the radian of the second arc-shaped piece 82 is matched with the appearance of the corresponding part of the external opening connecting rod 7, the intersection part of the first arc-shaped piece 81 and the second arc-shaped piece 82 is connected with a third arc-shaped piece 83 to form a.
A porous thin-wall structure may be disposed at a contact position of the external opening connecting rod 7 and the lock housing 6, and referring to fig. 9, a sound absorbing material such as foam plastic or an acoustic metamaterial capable of blocking noise in a specific frequency band may be filled in the porous thin-wall structure.
Aiming at the problem that sharp noise can be generated among an unlocking turntable, an external opening connecting rod and a lock shell after the electric opening of an electric opening vehicle door lock with a novel flexible composite auxiliary structure is finished, the three-stage noise reduction mechanism provided by the invention is used for constructing a movable folding mechanism and a novel movable noise reduction structure combined by a metamaterial structure by combining the folding mechanism with a porous structure, the array arrangement pore structure on the surface of an active driving mechanism is compliant and deformed under the stress condition of the folding mechanism, a multi-layer nested variable structure and porous metamaterial composite motion is formed, the folding mechanism also has an active variable structure mode, and the active and passive noise reduction combined mode is formed to control the sound quality. Meanwhile, the multi-stage buffer design is adopted to weaken the collision sound, and the noise reduction in the resetting process after the electric opening is finished is realized by means of reducing the contact speed, flexible impact and elastic deformation. The intelligent side door lock can effectively reduce the impact noise of the intelligent side door lock of the automobile in the electric opening process, and is beneficial to improving the sound quality of the door lock.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is therefore defined by the appended claims.
Claims (9)
1. The utility model provides a device of making an uproar falls in folding for improving car/hatch door lock is electronic opens sound quality, includes the lock casing, sets up outer connecting rod, the unblock carousel of opening on the lock casing and contains the groove connecting rod, the one end that contains the groove connecting rod links to each other with actuating mechanism, actuating mechanism is used for opening and resetting of control car door lock, and the other end rotates with the unblock carousel to be connected, the unblock carousel rotates with outer connecting rod that opens and is connected its characterized in that: the automobile door lock further comprises a primary noise reduction mechanism arranged between the unlocking turntable and the lock shell and comprising a groove connecting rod, wherein the primary noise reduction mechanism is used for reducing noise by reducing the running speed of the unlocking turntable, a secondary noise reduction mechanism arranged between the unlocking turntable and the outer opening connecting rod is used for reducing the collision noise of the unlocking turntable and the outer opening connecting rod by changing rigid contact into flexible contact, a third noise reduction mechanism arranged between the outer opening connecting rod and the lock shell is used for reducing the collision noise of the outer opening connecting rod and the lock shell by elastic deformation, and the noise of the automobile door lock in the resetting process is reduced by virtue of the primary noise reduction mechanism, the secondary noise reduction mechanism and the third noise reduction mechanism in sequence, so that the sound quality of the door lock is improved,
the three-level noise reduction mechanism comprises an elastic shell, a folding mechanism is arranged in the elastic shell, the folding mechanism is of a multilayer structure, the periphery of the folding mechanism is connected with the elastic shell through springs, the outer opening connecting rod moves towards the direction close to the lock shell until the outer opening connecting rod contacts the elastic shell, the folding mechanism in the outer opening connecting rod is pressed and extended, and the springs at the periphery of the outer opening connecting rod are compressed; the outer opening connecting rod moves towards the direction far away from the lock shell, the springs on the periphery of the folding mechanism extend, and the folding mechanism contracts until the outer opening connecting rod is separated from the elastic shell.
2. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 1, characterized in that: folding mechanism includes the multilayer folded sheet, the folded sheet has elasticity, includes along horizontal and vertical a plurality of folding monomers that connect gradually, folding monomer includes that the shape is the same and intersects in four parallelograms of a common point, two liang of formation mountain ridge forms, one is the acute angle in two adjacent angles of parallelogram, and another is the obtuse angle, four angles around the common point come from four parallelograms respectively, are acute angle, obtuse angle and obtuse angle, two along clockwise in proper order public limit between the acute angle is recessed, forms a valley structure, and the equal epirelief of public limit between the other two angles forms three peak structure, realizes the horizontal flexible of folded sheet through mountain ridge form, realizes the vertical flexible of folded sheet through the valley structure.
3. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 2, characterized in that: the acute angle sets up to 75 degrees to 85 degrees, the obtuse angle sets up to 95 degrees to 105 degrees, evenly be provided with a plurality of through-holes on the folding monomer.
4. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 2, characterized in that: the folding plate is made of flexible resin materials, the multilayer folding plates are evenly arranged at intervals from top to bottom or symmetrically arranged in opposite directions, the elastic shell is arranged to be an arc structure consistent with the arc shape of the surface of the lock shell, the angle corresponding to the valley structure is an obtuse angle, and the angle corresponding to the peak structure is an acute angle.
5. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 1, characterized in that: mechanism of making an uproar falls in tertiary level includes the elasticity reed, the elasticity reed includes two crossing first arc pieces and second arc pieces, the radian of first arc piece and the appearance cooperation that the lock casing corresponds the position, the radian of second arc piece and the appearance cooperation that the connecting rod corresponds the position of opening outward, the crossing position of first arc piece and second arc piece links to each other with the third arc piece, encloses into a space.
6. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 5, characterized in that: the space is filled with sound absorption materials or acoustic metamaterials.
7. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 5, characterized in that: the contact part of the outer opening connecting rod and the elastic shell or the second arc-shaped piece is of a porous thin-wall structure.
8. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 1, characterized in that: the secondary noise reduction mechanism comprises a plastic-coated molding insert, the plastic-coated molding insert is arranged at the contact position of the unlocking turntable and the external opening connecting rod, and a groove-shaped through hole is formed in the plastic-coated molding insert and is close to the external opening connecting rod.
9. The folding noise reduction device for improving the sound quality of the electric opening of the car/hatch lock according to claim 1, characterized in that: the primary noise reduction mechanism comprises a torsion spring arranged on a rotating shaft of a groove-containing connecting rod and an unlocking turntable, one pin of the torsion spring is fixedly arranged on the unlocking turntable, a contact section is arranged on the groove-containing connecting rod, the torsion spring is driven by the groove-containing connecting rod to rotate in the resetting process until the other pin contacts the contact section, and the torsion spring is compressed, so that the rotating speed of the unlocking turntable is reduced; the unlocking device is characterized by further comprising a straight spring arranged on the unlocking turntable and an ejector pin arranged on the lock shell, wherein in the resetting process, the straight spring is in contact with the ejector pin and is compressed, and therefore the rotating speed of the unlocking turntable is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162582.9A CN111411839B (en) | 2020-03-10 | 2020-03-10 | Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162582.9A CN111411839B (en) | 2020-03-10 | 2020-03-10 | Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111411839A CN111411839A (en) | 2020-07-14 |
| CN111411839B true CN111411839B (en) | 2021-03-23 |
Family
ID=71489119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010162582.9A Active CN111411839B (en) | 2020-03-10 | 2020-03-10 | Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111411839B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073519A (en) * | 1975-12-26 | 1978-02-14 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Noiseless latch for particular use on vehicle doors |
| DE102006025719A1 (en) * | 2006-06-02 | 2007-12-06 | Kiekert Ag | Closure device for motor vehicle, has damping unit comprising dispersion, gel and reversible casing and connected with unit in form fit or firmly-bonded manner, where unit has layer which has receiver for damping unit |
| CN204370939U (en) * | 2014-12-15 | 2015-06-03 | 浙江吉利汽车研究院有限公司 | For the clamp plate type lock body structure of vehicle |
| CN107075880A (en) * | 2014-10-24 | 2017-08-18 | 开开特股份公司 | With pawl and the motor vehicle lock for taking motivation structure |
| CN109930922A (en) * | 2019-03-26 | 2019-06-25 | 上海工程技术大学 | The electric opening car door lock mechanism of the novel submissive compound secondary construction of variable freedom |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1724424B1 (en) * | 2005-05-16 | 2009-10-07 | Intier Automotive Closures S.p.A. | Vehicle door lock |
-
2020
- 2020-03-10 CN CN202010162582.9A patent/CN111411839B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073519A (en) * | 1975-12-26 | 1978-02-14 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Noiseless latch for particular use on vehicle doors |
| DE102006025719A1 (en) * | 2006-06-02 | 2007-12-06 | Kiekert Ag | Closure device for motor vehicle, has damping unit comprising dispersion, gel and reversible casing and connected with unit in form fit or firmly-bonded manner, where unit has layer which has receiver for damping unit |
| CN107075880A (en) * | 2014-10-24 | 2017-08-18 | 开开特股份公司 | With pawl and the motor vehicle lock for taking motivation structure |
| CN204370939U (en) * | 2014-12-15 | 2015-06-03 | 浙江吉利汽车研究院有限公司 | For the clamp plate type lock body structure of vehicle |
| CN109930922A (en) * | 2019-03-26 | 2019-06-25 | 上海工程技术大学 | The electric opening car door lock mechanism of the novel submissive compound secondary construction of variable freedom |
Non-Patent Citations (1)
| Title |
|---|
| 含变自由度力复位组合柔顺副的汽车门锁机构;王明远等;《中国机械工程》;20191015;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111411839A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9387887B2 (en) | Vehicle hood panel | |
| US9475435B2 (en) | Vehicle exterior component | |
| CN111411839B (en) | Folding noise reduction device for improving quality of electric opening sound of car/cabin door lock | |
| JP2004525028A (en) | Shock-absorbent lining element for the interior of the vehicle | |
| CN201217450Y (en) | Upright post with reinforced structure of automobile | |
| CN109914941A (en) | A kind of automobile door lock | |
| CN112483804A (en) | Intelligent manufacturing computer case with self-adaptive shock absorption function | |
| CN216102407U (en) | Buffer block, suitcase buffer structure and car of gradable buffering | |
| CN113184056B (en) | Novel engine hood with inward sunken outer plate | |
| JP2567400Y2 (en) | Energy absorbing plastic bumper | |
| CN103661110A (en) | Low-wind-noise automobile exterior rearview mirror | |
| CN211038221U (en) | Hand-pressing type automobile door handle | |
| CN209556653U (en) | A kind of noise reduction motor vehicle door lock | |
| CN110154703A (en) | Composite filled Aluminum Honeycomb Cores and the arrangements for automotive doors for using the aluminium core | |
| CN205422300U (en) | Location structure and including this location structure's vehicle | |
| CN215720513U (en) | Novel crankshaft vibration damper applied to automobile engine | |
| CN216040847U (en) | Traffic engineering buffer stop | |
| CN209756754U (en) | EPP component for damping and buffering inside automobile door plate | |
| CN210760624U (en) | Carbon fiber composite anticollision roof beam | |
| CN218714315U (en) | Vibration reduction honeycomb plate based on particle damping | |
| CN218965924U (en) | Hinge type die for buffer glue of automobile shock absorber | |
| CN217918220U (en) | Shock absorber and scooter | |
| CN211943511U (en) | Anti striking car side wall plate structure | |
| CN212765638U (en) | Anti-collision reinforcing plate for vehicle door | |
| CN217022142U (en) | Automobile door panel assembly with atmosphere lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |