CN112757894A - Automobile active air inlet grille limiting structure - Google Patents
Automobile active air inlet grille limiting structure Download PDFInfo
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- CN112757894A CN112757894A CN202110279555.4A CN202110279555A CN112757894A CN 112757894 A CN112757894 A CN 112757894A CN 202110279555 A CN202110279555 A CN 202110279555A CN 112757894 A CN112757894 A CN 112757894A
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- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 73
- 210000003205 muscle Anatomy 0.000 claims description 45
- 239000003292 glue Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 description 26
- 239000012790 adhesive layer Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000005206 flow analysis Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a limiting structure of an automobile active air inlet grille, which relates to the technical field of automobile active air inlet grilles and comprises a first limiting mechanism arranged on an active air inlet grille body and a second limiting mechanism arranged on an active blade, wherein the first limiting mechanism is arranged at the position, close to an active blade mounting hole, of the active air inlet grille body and used for limiting the opening and closing limit positions of the active blade, and comprises a limiting part A and a limiting part B which are arranged in axial symmetry; the second limiting mechanism is arranged on the driving blade transmission shaft and correspondingly arranged between the limiting part A and the limiting part B, and can limit the driving blade to rotate to be in a closed state and limit the driving blade to rotate to be in a full-open state; through implementing this technical scheme, can accurate control blade rotate the starting point in-process, terminal position, impel the sealed face of initiative blade and the sealed face of grid body to contact completely to solve the current automobile initiative grid like product blade and seal bad problem.
Description
Technical Field
The invention belongs to the technical field of automobile active air inlet grilles, and particularly relates to an automobile active air inlet grille limiting structure.
Background
Along with the requirements on energy conservation, emission reduction and oil consumption improvement, the active air inlet grille of the automobile becomes a standard distribution of more and more middle-high-end automobile types, and the active air inlet grille of the automobile controls air inlet amount and wind resistance by actively changing the opening and closing of the air inlet grille, so that the fuel economy is improved, and the optimal working temperature of an engine is quickly reached; the active air inlet grille of the automobile is generally positioned below an automobile engine hood, at the rear part of an automobile middle net and in front of an engine compartment, the traditional air inlet grille is a fixed open shutter, and the active air inlet grille is a shutter capable of controlling the opening and closing angle, so that a motor on the active air inlet grille can be intelligently controlled to reach an ideal opening angle, the aerodynamic performance is improved, and the engine is in the optimal horizontal temperature; the active air inlet grille is closed when the automobile is started, so that the heat air loss is reduced, the engine is favorably heated to a working state quickly, the air inlet efficiency and the heat dissipation efficiency of the automobile are maximized, and the oil consumption and the emission can be reduced.
According to the technical defect that the existing automobile active air inlet grille is poor in sealing performance, each active grille blade of the automobile active air inlet grille needs to be connected with a driving mechanism, the driving mechanism drives the active grille blade to rotate so as to achieve closing or opening, when the active grille blade is closed, tiny leaks between the active air inlet grille and an automobile body structure and between the active grille blades can cause great air flow loss, and serious influence is brought to the performance of the whole automobile.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a limiting structure of an automobile active air inlet grille, which can accurately control the starting point and the end point positions of a blade in the rotating process, and can promote the sealing surface of an active blade to be in complete contact with the sealing surface of a grille body so as to solve the problem of poor sealing of the blades of the similar products of the existing automobile active grille.
The technical scheme adopted by the invention is as follows:
the limiting structure comprises a first limiting mechanism arranged on the active air inlet grille body and a second limiting mechanism arranged on an active blade, wherein the first limiting mechanism and the second limiting mechanism are arranged on the active blade
The first limiting mechanism is arranged at a position, close to the driving blade mounting hole, of the driving air inlet grille body and used for limiting the opening and closing limit positions of the driving blades, the first limiting mechanism comprises a limiting part A and a limiting part B which are axially symmetrically arranged, the limiting part A comprises a first limiting section A and a second limiting section A which are obliquely arranged, and the limiting part comprises a first limiting section B and a second limiting section B which are obliquely arranged;
second stop gear installs on the driving vane transmission shaft and corresponds and locate between spacing A and the spacing B, second stop gear is including spacing muscle A, spacing muscle B, spacing muscle C and spacing muscle D, offsets with the rotation of restriction driving vane and is in the closed condition through spacing muscle A and first spacing section A and spacing muscle C and first spacing section B, offsets with the spacing section A of second and spacing muscle D and the spacing section B of second offsets and is in the state of opening entirely with the rotation of restriction driving vane.
This technical scheme is through the starting point of first stop gear and the cooperation design of second stop gear with the accurate control blade rotation in-process, the terminal position, first stop gear is including presenting spacing A and spacing B of axisymmetric segmentation arrangement on initiative air-inlet grille body, and install the second stop gear of driving blade transmission epaxial and can rotate under actuating mechanism's drive along with the driving blade, open and close extreme position with the restriction driving blade through the cooperation of four spacing muscle of second stop gear and the spacing section of first stop gear, can make the sealed face of driving blade and the sealed face of grille body contact completely, and then solve the bad problem of current car initiative grille like product blade seal.
In a preferred embodiment of the present invention, the first position-limiting section a and the second position-limiting section a are integrally connected, the first position-limiting section B and the second position-limiting section B are integrally connected, the first position-limiting section a and the first position-limiting section B are axially symmetrically arranged, and the second position-limiting section a and the second position-limiting section B are axially symmetrically arranged; above-mentioned first stop gear is integrative injection moulding with initiative air-inlet grille body, and this structural design makes simply, has fine installation accuracy and structural stability, can cooperate second stop gear's design to realize the starting point, the terminal point position of accurate control blade rotation in-process.
In a preferred embodiment of the invention, the limiting rib A, the limiting rib B, the limiting rib C and the limiting rib D are integrally connected, the limiting rib A is provided with a limiting chamfer matched with the first limiting section A so as to form surface contact, the limiting rib B is provided with a limiting chamfer matched with the second limiting section A so as to form surface contact, the limiting rib C is provided with a limiting chamfer matched with the first limiting section B so as to form surface contact, and the limiting rib D is provided with a limiting chamfer matched with the second limiting section B so as to form surface contact; spacing chamfer of spacing muscle A, spacing muscle B, spacing muscle C and spacing muscle D in this structure is the spacing section design that the slope set up in with first stop gear respectively according to it corresponds under the limit state for the driving vane is in closed condition or under the full open mode, increases first stop gear and second stop gear's area of contact, makes it have better spacing effect.
In a preferred embodiment of the present invention, the limiting rib a, the limiting rib B, the limiting rib C and the limiting rib D are all L-shaped limiting ribs, each of which has a connecting section along the axial direction of the driving blade transmission shaft and a connecting section along the radial direction of the driving blade transmission shaft, and are connected into a whole by the connecting sections along the radial direction of the driving blade transmission shaft; this structural design is simple, and second stop gear is when guaranteeing to rotate along with the driving blade transmission shaft, can open and close extreme position in order to restrict driving blade with each spacing section ingenious cooperation among the first stop gear, and the second stop gear that is overall design has better structural stability.
In a preferred embodiment of the present invention, a reinforcing rib is disposed in a transition region between the limiting rib a and the limiting rib B along the axial direction of the driving blade transmission shaft, and a reinforcing rib is disposed in a transition region between the limiting rib C and the limiting rib D along the axial direction of the driving blade transmission shaft, so that the second limiting mechanism forms an integral structure with a cross-shaped cross-sectional profile on the driving blade transmission shaft, so as to further enhance the structural strength of the second limiting mechanism.
In a preferred embodiment of the present invention, the limiting structure further includes a protruding structure disposed on the active grille shutter body and a sealing structure disposed on the active blade, the protruding structure and the sealing structure extend axially along the driving shaft of the active blade, so that when the active blade is in a closed state, the sealing structure can be matched and abutted against the protruding structure, and a sealing surface for limiting the air flow circulation is formed between the active grille shutter body and the active blade; as further preferred, the protruding structure and the sealing structure can be designed into a double-color injection molding product, the micro gaps between the driving blade and the driving air inlet grid body and between the driving blade and the driving blade are blocked by the soft rubber structure, the purpose of improving the sealing performance is achieved, the driving air inlet grid with the structural design is good in sealing performance, the wind resistance reducing effect of the whole vehicle can be improved, and the purposes of saving energy, reducing emission and reducing oil consumption are achieved.
In a preferred embodiment of the present invention, a certain sealing gap is reserved between the limiting rib a and the first limiting section B, and a certain sealing gap is reserved between the limiting rib C and the first limiting section B, wherein the sealing gap is less than or equal to 0.5 mm; according to the technical scheme, the deformation condition of the driving blade is considered, the continuous and long sealing performance of the assembled product is ensured, the specific reserved gap is determined according to specific items through mold flow analysis during design, the deformation trend and the deformation quantity of the driving air-inlet grille body and the driving blade are determined and defined, a general sealing gap is obtained through a large amount of analysis and verification and is less than or equal to 0.5mm, after the deformation convex part of the driving blade is contacted with the driving air-inlet grille body, the driving mechanism continuously drives the driving blade to rotate so as to press the driving air-inlet grille body, the deformation of the driving blade is corrected, the sealing surface of the driving blade is completely contacted with the sealing surface of the grille body, and until the driving blade is in a closed state, the limiting ribs A and the limiting ribs C are abutted against the corresponding limiting sections, so that the sealing performance of the driving air-inlet.
In a preferred embodiment of the invention, the sealing gap is 0.25mm, and after the deformation trend and the deformation amount of the active air inlet grille body and the active blade are determined through mold flow analysis during design, the sealing gap is designed to be 0.25mm, so that the deformation of the active blade can be corrected to a greater extent, the sealing surface of the active blade is better promoted to be in complete contact with the sealing surface of the grille body, and the obtained product has good sealing performance.
In a preferred embodiment of the present invention, at least one layer of soft adhesive layer is disposed on the limiting rib a and the limiting rib C, so that when the driving blade is in the closed state, the limiting rib a and the first limiting section a and the limiting rib C and the first limiting section B are always in contact and abutted through the soft adhesive layer; this technical scheme still considers the condition that the initiative blade exists the deformation, for guaranteeing that the assembly back product lasts permanent sealing performance, the spacing muscle that will restrict the initiative blade and be in the closed condition establishes the soft glue film of one deck, in order to guarantee that first stop gear is the flexonics with the spacing mechanism member of second under this state, so there is the condition of deformation in the initiative blade, actuating mechanism can drive the initiative blade axis of rotation and continuously rotate so that the sealed face of blade presses to the grid body completely, and then the automatic correction initiative blade warp, it all has fine leakproofness to reach the product in permanent use.
In a preferred embodiment of the present invention, at least the first position-limiting section a and the first position-limiting section B are provided with a soft adhesive layer, so that when the driving blade is in the closed state, the position-limiting rib a and the first position-limiting section a, and the position-limiting rib C and the first position-limiting section B are in contact and abutting with each other all the time through the soft adhesive layer; in the technical scheme, the situation that the driving blade is deformed is considered in the same way, and the soft adhesive layer can be arranged on the limiting section for limiting the driving blade to be in the closed state, so that the first limiting mechanism and the second limiting mechanism still keep flexible contact when the driving blade is in the closed state, and the deformation of the blade can be corrected adaptively.
The invention has at least the following beneficial effects:
1. the limiting structure can accurately control the starting point and the end point positions of the driving blade in the rotating process through the matching design of the first limiting mechanism and the second limiting mechanism which are integrally formed, limit the opening and closing limit positions of the driving blade through the matching of the four limiting ribs of the second limiting mechanism and the limiting section of the first limiting mechanism, and can promote the sealing surface of the driving blade to be in complete contact with the sealing surface of the grating body, thereby solving the problem of poor sealing of the blades of the similar products of the conventional automobile driving grating.
2. The limiting structure is simple in structure, the driving blade is smoothly switched from a closed state to an open state or from the open state to the closed state, the driving blade is driven to rotate by the driving mechanism while the sealing performance of the driving blade and the driving air inlet grille body is ensured, when the driving blade is in a fully open state, the full-open position of the driving blade is accurately controlled by abutting the limiting ribs A at two sides against the first limiting section A and abutting the limiting rib C against the first limiting section B, the air flow blown in from the front can be smoothly introduced into an engine compartment, and the air flow loss is reduced, so that the effective windward area of a cooling system and the aerodynamic performance of the whole vehicle are improved; when the driving blade is in a closed state, the closed position of the driving blade is accurately controlled through the abutting of the limiting rib B and the second limiting section A and the abutting of the limiting rib D and the second limiting section B, and the wind resistance is reduced so as to achieve the purposes of energy conservation, emission reduction and oil consumption reduction.
3. The limiting structure also comprises a convex structure arranged on the driving air inlet grille body and a sealing structure arranged on the driving blade, wherein the convex structure and the sealing structure extend axially along a driving blade transmission shaft and are used for forming a sealing surface for limiting the circulation of air flow between the driving air inlet grille body and the driving blade, meanwhile, the convex structure and the sealing structure can be designed into a double-color injection molding product, and a flexible glue structure is used for blocking small gaps between the driving blade and the driving air inlet grille body as well as between the driving blade and the driving blade, so that the aim of improving the sealing performance is fulfilled.
4. The limit structure of the invention considers the deformation condition of the active blade, and in order to ensure the lasting and long sealing performance of the assembled product, a certain sealing gap is reserved between the corresponding limit rib and the limit section during the theoretical design of the invention, so that after the deformation convex part of the active blade is contacted with the active air-inlet grille body, the driving mechanism continuously drives the active blade to rotate so as to press the active air-inlet grille body, the deformation of the active blade is corrected, and the sealing surface of the active blade is completely contacted with the sealing surface of the grille body, thereby enhancing the sealing performance of the active air-inlet grille; similarly, in the second scheme of the invention, a soft adhesive layer can be arranged on the limiting rib of the second limiting mechanism for limiting the driving blade to be in the closed state, or in the third scheme, a soft adhesive layer can be arranged on the limiting section of the first limiting mechanism for limiting the driving blade to be in the closed state, or a soft adhesive layer can be arranged on the limiting rib of the second limiting mechanism for limiting the driving blade to be in the closed state and on the limiting section of the first limiting mechanism, so that the first limiting mechanism and the second limiting mechanism are in flexible contact under the condition that the driving blade is deformed, and thus, the driving mechanism can drive the rotating shaft of the driving blade to continuously rotate to enable the sealing surface of the blade to completely press the grating body under the condition that the driving blade is deformed, and further automatically correct the deformation of the driving blade, so that the product has good sealing performance in the long-term use process; therefore, the automobile active air inlet grille provided by the invention has the advantages of good sealing performance, small wind resistance, low oil consumption and the like, and can be used for a long time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a partial schematic view of an active grille shutter body and active vane assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the first limiting mechanism in the embodiment of the present invention;
FIG. 3 is an enlarged schematic view of a first spacing mechanism in an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a second limiting mechanism in the embodiment of the present invention;
FIG. 5 is a schematic view of the other side of the second spacing mechanism in an embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of the first and second limiting mechanisms with the driving blade in a closed state according to the embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of the first and second limiting mechanisms of the embodiment of the present invention when the driving vane is in the fully open state;
FIG. 8 is a cross-sectional view of an active grille shutter body and active vane seal arrangement in accordance with an embodiment of the present invention;
FIG. 9 is a structural design diagram of a limiting rib A and a limiting rib C in the embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view of D-D of FIG. 9 in accordance with an embodiment of the present invention.
In the figure: 1-a first limiting mechanism; 11-a limiting part A; 111-a second spacing section a; 112-a first spacing section A; 12-a stopper portion B; 121-a first spacing section B; 122-a second limiting section B; 2-a second limiting mechanism; 21-a limiting rib A; 22-a limiting rib B; 23-a limiting rib C; 24-a limiting rib D; 25-reinforcing ribs; 26-splines; 27-a transition region; 3-an active air intake grille body; 31-a raised structure; 4-driving blade; 41-a sealing structure; 51-a hardcoat layer; 52-Soft glue layer.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example one
Referring to fig. 1 to 4, the present embodiment provides a limiting structure for an active grille shutter of an automobile, the limiting structure comprises a first limiting mechanism 1 arranged on a driving air inlet grille body 3 and a second limiting mechanism 2 arranged on a driving blade 4, wherein the first limiting mechanism 1 is arranged at the position of the driving air inlet grille body 3 close to the mounting hole of the driving blade 4, used for limiting the opening and closing limit positions of the driving vanes 4, a driving vane transmission shaft penetrates through the mounting holes of the driving air inlet grille body 3 and is connected with a driving mechanism (not shown) through a spline 26 on the transmission shaft, the driving mechanism can be an existing driving motor, before the driving motor is powered on, the driving blade 4 is kept in the non-closed state, and of course, other driving mechanisms can be used to drive the transmission shaft to rotate so as to drive the driving blade 4 to rotate and switch the driving blade 4 into the closed state and the open state.
Specifically, as shown in fig. 2 and fig. 3, the first limiting mechanism 1 includes a limiting portion a11 and a limiting portion B12 that are arranged in axial symmetry, the limiting portion a11 includes a first limiting section a112 and a second limiting section a111 that are arranged in an inclined manner, and the limiting portion includes a first limiting section B121 and a second limiting section B122 that are arranged in an inclined manner; referring to fig. 4 and 5, the second limiting mechanism 2 is mounted on the driving blade transmission shaft and is correspondingly disposed between the limiting portion a11 and the limiting portion B12, the second limiting mechanism 2 includes a limiting rib a21, a limiting rib B22, a limiting rib C23 and a limiting rib D24, as shown in fig. 6, the limiting rib a21 abuts against the first limiting section a112 and the limiting rib C23 abuts against the first limiting section B121 to limit the rotation of the driving blade 4 and to be in a closed state, as shown in fig. 7, the limiting rib B22 abuts against the second limiting section a111 and the limiting rib D24 abuts against the second limiting section B122 to limit the rotation of the driving blade 4 and to be in a fully open state; that is, the starting and ending positions of the rotation process of the blade are precisely controlled by the matching design of the first limiting mechanism 1 and the second limiting mechanism 2.
In the first limiting mechanism 1 shown in the figure, the first limiting section a112 and the second limiting section a111 are integrally connected, the first limiting section B121 and the second limiting section B122 are integrally connected, specifically, the first limiting section B121 of the first limiting section a112 is symmetrically arranged by a linear inclined shaft, the second limiting section a111 and the second limiting section B122 are symmetrically arranged by the linear inclined shaft, the first limiting mechanism 1 and the active air inlet grille body 3 are integrally injection-molded, the structural design and manufacture is simple, the mounting precision and the structural stability are good, and the design of the second limiting mechanism 2 can be matched to realize the starting point and the end point position in the process of accurately controlling the rotation of the blades.
In the illustrated second limiting mechanism 2, the limiting rib a21, the limiting rib B22, the limiting rib C23 and the limiting rib D24 are integrally connected, the limiting rib a21 is provided with a limiting chamfer matched with the first limiting section a112, so that the limiting rib a21 can form surface contact with the first limiting section a112, the limiting rib B22 is provided with a limiting chamfer matched with the second limiting section a111, so that the limiting rib B22 can form surface contact with the second limiting section a111, the limiting rib C23 is provided with a limiting chamfer matched with the first limiting section B121, so that the limiting rib C23 can form surface contact with the first limiting section B121, and the limiting rib D24 is provided with a limiting chamfer matched with the second limiting section B122, so that the limiting rib D24 can form surface contact with the second limiting section B122; spacing muscle A21, spacing muscle B22, spacing muscle C23 and each spacing chamfer of spacing muscle D24 are the spacing section design that the slope set up in with first stop gear 1 respectively under its corresponding limit state for driving vane 4 is in the closed condition or under the full open mode, increases first stop gear 1 and second stop gear 2's area of contact, and then makes it have better spacing effect and stability.
In some embodiments, the limiting rib a21, the limiting rib B22, the limiting rib C23 and the limiting rib D24 are L-shaped structural limiting ribs, and each of the L-shaped structural limiting ribs has a connecting section along the axial direction of the driving blade transmission shaft and a connecting section along the radial direction of the driving blade transmission shaft, and the limiting rib a21, the limiting rib B22, the limiting rib C23 and the limiting rib D24 are connected into a whole through the connecting sections along the radial direction of the driving blade transmission shaft, the structural design is simple, the second limiting mechanism 2 can be skillfully matched with each limiting section in the first limiting mechanism 1 to limit the opening and closing limit positions of the driving blade 4 while ensuring the rotation along with the driving blade transmission shaft, and the integrally designed second limiting mechanism 2 has better structural stability; in addition, a reinforcing rib 25 along the axial direction of the driving blade transmission shaft is arranged in a transition region 27 between the limiting rib A21 and the limiting rib B22, and a reinforcing rib 25 along the axial direction of the driving blade transmission shaft is arranged in a transition region 27 between the limiting rib C23 and the limiting rib D24, so that the second limiting mechanism 2 forms an integrated structure with a cross-shaped cross-section profile on the driving blade transmission shaft, and the structural strength of the second limiting mechanism 2 is further enhanced.
As shown in fig. 1, 4 and 8, the limiting structure provided in this embodiment further includes a protruding structure 31 disposed on the active intake grille body 3 and a sealing structure 41 disposed on the active blade 4, where the protruding structure 31 and the sealing structure 41 extend axially along the drive shaft of the active blade, so that when the active blade 4 is in a closed state, the sealing structure 41 can be matched and abutted against the protruding structure 31, and a sealing surface for limiting the air flow circulation is formed between the active intake grille body 3 and the active blade 4; as preferred, protruding structure and seal structure design for double-shot moulding product, for better sealed, this embodiment designs the initiative blade as double-shot moulding, be about to initiative blade seal structure 41 design soft glue structure (not shown) in order to shutoff the blade and initiatively admit air the little gap between the grid body and the blade, reach the purpose that improves sealing performance, the initiative grille seal performance of admitting air of this structural design is good, can improve the windage resistance effect of whole car, reached energy saving and emission reduction, the purpose of reducing the oil consumption.
In the present embodiment, in order to ensure the lasting and long sealing performance of the assembled product, considering the deformation of the active vane 4, in a theoretical design, a certain sealing gap B is reserved between the limiting rib a21 and the first limiting section B121, and a certain sealing gap B is reserved between the limiting rib C23 and the first limiting section B121, where in an actual design, the sealing gap B is not greater than 0.5mm, and the two sealing gaps are the same in the actual design, it should be noted that the sealing gap B can be defined according to the deformation amount of the product, the defined values of the sealing gaps B of different products are not consistent, and a general defined sealing gap B is not greater than 0.5mm is obtained through a large number of analyses and verifications, and in the present embodiment, after determining the deformation tendency and deformation amount of the active intake grille body and the active vane through a mold flow analysis, the final determined sealing gap is preferably 0.25mm, so that the deformation of the active vane 4 can be corrected to a large extent, the sealing surface of the driving blade is better promoted to be completely contacted with the sealing surface of the grating body, and the obtained product has good sealing performance; specifically, this sealed clearance's design can make the protruding position of initiative blade deformation and the back of initiative air-inlet grille body contact, driving motor continuously drives initiative blade 4 and rotates in order to press to initiative air-inlet grille body 3, correct initiative blade 4 and warp, make the sealed face of initiative blade and the sealed face of grid body contact completely, when initiative blade 4 is in the complete closure state, spacing muscle A21 and spacing muscle C23 offset rather than the spacing section that corresponds, guarantee initiative air-inlet grille sealing performance and protect initiative blade 4 spacing performance, and then motor stall, the product is in the complete sealing state.
Example two
The second embodiment is substantially the same as the first embodiment, except that: referring to fig. 9 and 10, in the illustrated embodiment, in consideration of the deformation of the driving vane 4, in order to ensure the long-lasting sealing performance of the assembled product, the limiting rib that limits the driving vane 4 in the closed state is provided with a soft adhesive layer 52, that is, in the embodiment, at least the hard adhesive layer 51 of the limiting rib a21 and the limiting rib C23 is provided with a soft adhesive layer 52, so that when the driving vane 4 is in the closed state, the limiting rib a21 and the first limiting section a112 as well as the limiting rib C23 and the first limiting section B121 are always in contact and abut against each other through the soft adhesive layer 52, so as to ensure that the first limiting mechanism 1 and the second limiting mechanism 2 are in flexible contact under the closed state, and thus, when the driving vane 4 deforms, the driving motor can drive the rotating shaft of the driving vane 4 to continuously rotate so that the sealing surface of the vane completely presses against the grille body, and then the deformation of the driving blade 4 is automatically corrected, so that the product has good sealing performance in the long-term use process.
Certainly, the present invention is not limited to this, and a soft adhesive layer may also be arranged on the limiting section for limiting the closed state of the driving blade 4, so that the first limiting mechanism 1 and the second limiting mechanism 2 still keep flexible contact when the driving blade 4 is in the closed state, that is, in this embodiment, at least a soft adhesive layer is arranged on the hard adhesive layer of the first limiting section a112 and the first limiting section B121, or a soft adhesive layer is arranged on the limiting rib of the second limiting mechanism 2 and the limiting section of the first limiting mechanism 1 for limiting the closed state of the driving blade 4, so that when the driving blade 4 is in the closed state, the limiting rib a21 is in contact with and abutted against the first limiting section a112 and the limiting rib C23 with the first limiting section B121 all the time through the soft adhesive layer; are intended to be included within the scope of the present invention; this structural design not only can make the automatic correction of initiative blade warp, reaches the product and all has fine leakproofness in permanent use, and limit structure stability is good, has the spacing effect of continuation according to the deflection.
In conclusion, the active air intake grille for the automobile can accurately control the starting point and the end point of the blade in the rotating process, has the advantages of good sealing performance, small wind resistance, low oil consumption and the like, can be continuously used for a long time, has wide market prospect and excellent popularization and use values, and is suitable for popularization and application.
The present specification and figures are to be regarded as illustrative rather than restrictive, and it is intended that all such alterations and modifications that fall within the true spirit and scope of the invention, and that all such modifications and variations are included within the scope of the invention as determined by the appended claims without the use of inventive faculty.
Claims (10)
1. The utility model provides a car initiative air-inlet grille limit structure which characterized in that: the limiting structure comprises a first limiting mechanism arranged on the driving air inlet grille body and a second limiting mechanism arranged on the driving blade, wherein the first limiting mechanism is arranged at a position, close to a driving blade mounting hole, of the driving air inlet grille body and used for limiting the opening and closing limiting positions of the driving blade, the first limiting mechanism comprises a limiting part A and a limiting part B which are arranged in axial symmetry, the limiting part A comprises a first limiting section A and a second limiting section A which are arranged in an inclined manner, and the limiting part comprises a first limiting section B and a second limiting section B which are arranged in an inclined manner;
second stop gear installs on the driving vane transmission shaft and corresponds and locate between spacing A and the spacing B, second stop gear is including spacing muscle A, spacing muscle B, spacing muscle C and spacing muscle D, offsets with the rotation of restriction driving vane and is in the closed condition through spacing muscle A and first spacing section A and spacing muscle C and first spacing section B, offsets with the spacing section A of second and spacing muscle D and the spacing section B of second offsets and is in the state of opening entirely with the rotation of restriction driving vane.
2. The active grille shutter limiting structure of an automobile as claimed in claim 1, wherein: first spacing section A and the spacing section A of second are a body coupling, first spacing section B and the spacing section B of second are a body coupling, just the first spacing section B of first spacing section A is the axial symmetry setting, the spacing section A of second is the axial symmetry setting with the spacing section B of second.
3. The active grille shutter limiting structure of an automobile as claimed in claim 1, wherein: spacing muscle A, spacing muscle B, spacing muscle C and spacing muscle D are an organic whole and are connected, just be equipped with on the spacing muscle A with the spacing chamfer of first spacing section A matched with in order to form the face contact, be equipped with on the spacing muscle B with the spacing chamfer of the spacing section A matched with of second in order to form the face contact, be equipped with on the spacing muscle C with the spacing chamfer of first spacing section B matched with in order to form the face contact, be equipped with on the spacing muscle D with the spacing chamfer of the spacing section B matched with of second in order to form the face contact.
4. The active grille shutter limiting structure of an automobile as claimed in claim 3, wherein: spacing muscle A, spacing muscle B, spacing muscle C and spacing muscle D are the spacing muscle of L type structure, have respectively along the axial linkage segment of initiative blade transmission shaft and along the radial linkage segment of initiative blade transmission shaft to connect as a whole through along the radial linkage segment of initiative blade transmission shaft.
5. The active grille shutter limiting structure of an automobile as claimed in claim 4, wherein: the transition region between the limiting rib A and the limiting rib B is provided with a reinforcing rib along the axial direction of the driving blade transmission shaft, and the transition region between the limiting rib C and the limiting rib D is provided with a reinforcing rib along the axial direction of the driving blade transmission shaft, so that the second limiting mechanism forms an integral structure with a cross-shaped cross-section outline on the driving blade transmission shaft.
6. The active grille shutter limiting structure of an automobile according to any one of claims 1 to 5, wherein: the limiting structure further comprises a protruding structure arranged on the active air inlet grille body and a sealing structure arranged on the active blade, wherein the protruding structure and the sealing structure are arranged along the axial extension of a transmission shaft of the active blade, so that when the active blade is in a closed state, the sealing structure can be matched and abutted with the protruding structure, and a sealing surface for limiting air flow circulation is formed between the active air inlet grille body and the active blade.
7. The active grille shutter limiting structure of an automobile as claimed in claim 6, wherein: a certain sealing gap is reserved between the limiting rib A and the first limiting section B, and a certain sealing gap is reserved between the limiting rib C and the first limiting section B, wherein the sealing gap is less than or equal to 0.5 mm.
8. The active grille shutter limiting structure of an automobile as claimed in claim 7, wherein: the seal gap is 0.25 mm.
9. The active grille shutter limiting structure of an automobile as claimed in claim 6, wherein: at least, be equipped with the soft glue film of one deck on spacing muscle A and the spacing muscle C, when making the driving vane be in the closed condition, spacing muscle A and first spacing section A and spacing muscle C and first spacing section B contact all the time through soft glue film and offset.
10. The active grille shutter limiting structure of an automobile as claimed in claim 6, wherein: at least, be equipped with the soft glue film of one deck on first spacing section A and the first spacing section B, when making the driving vane be in the closed condition, spacing muscle A and first spacing section A and spacing muscle C and first spacing section B contact the counterbalance all the time through the soft glue film.
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| CN202110279555.4A CN112757894A (en) | 2021-03-16 | 2021-03-16 | Automobile active air inlet grille limiting structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110279555.4A CN112757894A (en) | 2021-03-16 | 2021-03-16 | Automobile active air inlet grille limiting structure |
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| CN112757894A true CN112757894A (en) | 2021-05-07 |
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| CN202110279555.4A Pending CN112757894A (en) | 2021-03-16 | 2021-03-16 | Automobile active air inlet grille limiting structure |
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