Air inlet grille, thermal management system, automobile front face and automobile

Abstract

The application relates to the technical field of vehicles and provides an air inlet grille, a thermal management system, a front face of an automobile and the automobile. The air inlet grille comprises a shell, a driving part, a driving shaft, a plurality of intermittent motion mechanisms and a plurality of blade assemblies. The driving shaft is arranged in the shell, and the plurality of intermittent motion mechanisms and the plurality of blade assemblies are arranged along the extension direction of the driving shaft. The driving part is connected with the driving shaft and is used for driving the driving shaft to rotate. Each intermittent motion mechanism is connected with each blade assembly, and each intermittent motion mechanism is connected with the driving shaft and is used for driving each blade assembly at different positions to rotate in sequence under the rotation of the driving shaft. The application can not only select a smaller driving part to meet the requirement of the rotation of the blade assemblies in sequence, but also reduce the cost of the driving part. Moreover, the application meets the diversified requirement of consumers on the rotation mode of the blade assemblies of the air inlet grille, so that the air inlet grille has a certain 'welcome mode' effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an air intake grille, a thermal management system, a front face of an automobile and the automobile. BACKGROUND

[0002] The air intake grille of an automobile is part of the thermal management system of the vehicle, and is usually arranged at the head of the vehicle. When the vehicle is cold started, the front air intake grille will be closed to quickly warm up the engine and improve the efficiency of the engine. When the temperature of the vehicle is too high, the front air intake grille will be opened to quickly dissipate heat from the engine by increasing the intake flow into the engine compartment.

[0003] In the related art, the air intake grille mainly comprises a motor, a connecting rod structure, a driving blade and a plurality of driven blades. The motor is drivingly connected with the driving blade, and the driving blade is connected with the plurality of driven blades through the connecting rod structure. The motor drives the driving blade to rotate, so that the driving blade drives the plurality of driven blades to rotate synchronously through the connecting rod structure, so that all the blades rotate synchronously to open or close, so as to adapt to the current working condition of the vehicle.

[0004] However, since all the blades need to rotate synchronously, a motor with a large torque needs to be selected to meet the requirement of synchronous rotation of all the blades, thereby increasing the cost of the motor. In addition, the rotation mode of opening and closing of all the blades is single, which cannot meet the diversified demand of consumers for the air intake grille. SUMMARY

[0005] The problem solved by the present application is that the cost of the motor of the air intake grille in the prior art is high, and the rotation mode of the blades is single.

[0006] To solve the above problems, in a first aspect, the present application provides an air intake grille comprising an outer shell, a driving part, a driving shaft, an intermittent motion mechanism and a blade assembly. The driving shaft is arranged in the outer shell. A plurality of blade assemblies and a plurality of intermittent motion mechanisms are arranged along the extension direction of the driving shaft.

[0007] The driving part is connected with the driving shaft and is used to drive the driving shaft to rotate. Each intermittent motion mechanism is connected with each blade assembly one by one. Each intermittent motion mechanism is connected with the driving shaft and is used to drive each blade assembly at different positions to rotate in sequence under the rotation of the driving shaft.

[0008] Optionally, the intermittent motion mechanism includes an intermittent transmission assembly and a tie rod assembly. The blade assembly includes multiple blade units and multiple first rotating shafts. Each blade unit is mounted in the housing via each of the first rotating shafts. The tie rod assembly is hinged to the multiple blade units. The intermittent transmission assembly is connected to the drive shaft and the tie rod assembly respectively, for converting the rotational motion of the drive shaft into the linear reciprocating motion of the tie rod assembly, so as to drive the multiple blade units to rotate through the tie rod assembly.

[0009] Optionally, the tie rod assembly includes an active tie rod, a connecting plate, and a connecting rod portion. The two ends of the active tie rod are respectively connected to the intermittent transmission assembly and the connecting plate. The plurality of connecting rod portions are respectively connected to the connecting plate, and the connecting rod portion is hinged to at least one of the blade units.

[0010] Optionally, the housing includes an outer frame, a grille, and a fixing bracket. A plurality of blade assemblies are mounted in the outer frame through the grille. The drive shaft passes through the outer frame. A plurality of fixing brackets are spaced apart in the outer frame along the extension direction of the drive shaft. Each fixing bracket is provided with a first guide hole. The active pull rod passes through the first guide hole and is used to reciprocate linearly in the first guide hole along a direction perpendicular to the extension direction of the drive shaft.

[0011] Optionally, the tie rod assembly further includes a driven tie rod, and the fixing frame is also provided with a second guide hole. A plurality of driven tie rods are arranged on the connecting plate along the extension direction of the blade assembly and distributed on both sides of the active tie rod. Each driven tie rod passes through each of the second guide holes and is used for linear reciprocating motion within the second guide hole.

[0012] Optionally, the drive unit is disposed inside the housing and between the two intermittent transmission components near the center point of the drive shaft. The drive unit is connected to the drive shaft and is used to drive the drive shaft to rotate, thereby simultaneously driving the multiple intermittent transmission components.

[0013] Optionally, the intermittent transmission assembly includes a cam with a mounting hole and a guide structure. The cam is sleeved on the drive shaft through the mounting hole for synchronous rotation with the drive shaft. The guide structure is arranged around the mounting hole, and the radius of one end of the guide structure relative to the mounting hole is smaller than the radius of the other end of the guide structure relative to the mounting hole. One end of the pull rod assembly is slidably connected to the guide structure for sliding along the guide structure during the rotation of the cam.

[0014] Optionally, the areas enclosed by the lines connecting the two ends of the guide structure to the mounting holes are successively divided into a first equal radius area, a variable diameter area, and a second equal radius area, with the radii of the three areas arranged in descending order.

[0015] The central angles corresponding to the variable diameter regions of each cam are the same, and the central angles corresponding to the first equal radius regions of each cam gradually change in the direction from the center of the drive shaft to the end of the drive shaft.

[0016] Optionally, the intermittent transmission assembly is a Geneva wheel transmission structure, which includes a drive wheel, a Geneva wheel, a second rotating shaft, and a lever. The drive wheel is sleeved on the drive shaft and has a rotating pin. The Geneva wheel is disposed inside the housing via the second rotating shaft and is used to rotate around the second rotating shaft. The Geneva wheel has a radial groove that matches the rotating pin. The two ends of the lever are respectively hinged to the Geneva wheel and the pull rod assembly. The Geneva wheel is tightly fitted against the circumferential sidewall of the drive wheel. During the rotation of the Geneva wheel driven by the drive wheel, the rotating pins at different positions enter the radial grooves one after another, so as to convert the continuous rotational motion of the drive wheel into the sequential linear motion of the pull rod assembly at different positions through the push-pull force of the lever.

[0017] Optionally, the grooved wheel is further provided with an arc-shaped groove, and a plurality of the arc-shaped grooves are arranged around the center of the drive wheel. The circumferential sidewall of the drive wheel is a convex locking arc, and the convex locking arc is closely attached to the arc-shaped groove.

[0018] Optionally, the intermittent transmission component is a gear transmission structure.

[0019] Compared with the prior art, in this invention, the outer casing provides a mounting base for the drive shaft and multiple blade assemblies. When the blade assemblies need to switch from a closed state to an open state, or from an open state to a closed state, depending on the operating conditions of the vehicle, the drive unit works to drive the drive shaft to rotate. Since multiple intermittent motion mechanisms are connected to the drive shaft and each blade assembly respectively, the rotation of the drive shaft drives the multiple intermittent motion mechanisms to move. Each intermittent motion mechanism drives the blade assemblies at different positions to rotate gradually in sequence. Compared with the prior art, which drives all blades to rotate synchronously by a motor, requiring a large torque and increasing the cost of the motor, this application, because only some blade assemblies rotate within a unit of time, in other words, does not require all blade assemblies to rotate synchronously, effectively reduces the torque required by the drive unit to drive the blade assemblies to rotate. A smaller drive unit, such as a motor, can be selected to meet the requirement of sequential rotation of the blade assemblies at different positions, effectively reducing the cost of the drive unit.

[0020] Furthermore, by using various intermittent motion mechanisms to drive the blade components at different positions to rotate gradually in sequence, the system can meet the diverse needs of consumers for the rotation mode of the air intake grille blade components, giving the air intake grille a certain "welcome mode" effect.

[0021] Secondly, the present invention also provides a thermal management system, including the air intake grille as described above.

[0022] Therefore, the thermal management system includes the air intake grille, and thus the thermal management system has at least all the technical effects of the air intake grille, which will not be elaborated here.

[0023] Thirdly, the present invention also provides a front face of an automobile, including the air intake grille as described above.

[0024] Therefore, the front of a car includes the air intake grille, and thus the front of a car has at least all the technical effects of the air intake grille, which will not be elaborated here.

[0025] Fourthly, the present invention also provides an automobile, including the thermal management system described above, or the front fascia described above, or the air intake grille described above.

[0026] Therefore, a car includes, for example, the above thermal management system, or, for example, the above front face of the car, or, for example, the above air intake grille. Thus, a car has at least all the technical effects of an air intake grille, which will not be elaborated here. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the air intake grille in an embodiment of the present invention;

[0028] Figure 2 This is an exploded structural diagram of the air intake grille in an embodiment of the present invention;

[0029] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0030] Figure 4 This is one of the partial structural schematic diagrams of the air intake grille in an embodiment of the present invention;

[0031] Figure 5 This is one of the partial exploded structural diagrams of the air intake grille in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the principle structure of the cam and tie rod assembly in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the blade unit in the closed state in an embodiment of the present invention;

[0034] Figure 8This is a schematic diagram of the blade unit in the open state in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the blade unit in the fully open state in an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the guide structure of the cam in an embodiment of the present invention;

[0037] Figure 11 This is a second partial structural schematic diagram of the air intake grille in an embodiment of the present invention;

[0038] Figure 12 This is the second partially exploded structural diagram of the air intake grille in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1-Drive unit; 2-Housing shell; 21-Outer frame; 22-Grate; 23-Fixing frame; 3-Drive shaft; 4-Blade assembly; 41-Blade unit; 42-First rotating shaft; 5-Intermittent transmission assembly; 51-Cam; 511-Guide structure; 512-First equal radius region; 513-Variable diameter region; 514-Second equal radius region; 515-Mounting hole; 521-Drive wheel; 5211-Protruding locking arc; 522-Groove wheel; 5221-Radial groove; 5222-Arc-shaped groove; 523-Second rotating shaft; 524-Lever; 525-Rotating pin; 6-Pull rod assembly; 61-Active pull rod; 62-Connecting plate; 63-Linkage part; 64-Driven pull rod. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] It should be noted that in the XYZ coordinate system provided herein, the positive X-axis represents the right, and the negative X-axis represents the left; the positive Y-axis represents the front, and the negative Y-axis represents the back; the positive Z-axis represents the top, and the negative Z-axis represents the bottom. Furthermore, it should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0045] To solve the above technical problems, combined with Figure 1 As shown, an embodiment of the present invention provides an air intake grille, including a housing 2, a drive unit 1, a drive shaft 3, an intermittent motion mechanism, and a blade assembly 4. The drive shaft 3 passes through the housing 2, and a plurality of blade assemblies 4 and a plurality of intermittent motion mechanisms are respectively arranged along the extension direction of the drive shaft 3.

[0046] The drive unit 1 is connected to the drive shaft 3 and is used to drive the drive shaft 3 to rotate. Each of the intermittent motion mechanisms is connected to each of the blade assemblies 4 in a one-to-one correspondence. Each of the intermittent motion mechanisms is connected to the drive shaft 3 and is used to drive the blade assemblies 4 at different positions to rotate sequentially under the rotation of the drive shaft 3.

[0047] It should be noted that the extension direction of drive shaft 3 is... Figure 1 The X-axis of the coordinate system is parallel, and the extension direction of the drive shaft 3 can be the lateral direction of the vehicle, i.e., the left-right direction. The drive unit 1 is used to drive the drive shaft 3 to rotate. Each intermittent motion mechanism can correspond to a blade assembly 4, used to drive the corresponding blade assembly 4 to rotate to open or close. When the drive shaft 3 is rotating, multiple intermittent motion mechanisms can drive the corresponding blade assemblies 4 at different positions to rotate sequentially. In other words, only a portion of the blade assemblies 4 rotate per unit time, not all of the blade assemblies 4 rotate synchronously.

[0048] In this embodiment, the outer casing 2 provides a mounting base for the drive shaft 3 and multiple blade assemblies 4. When the blade assembly 4 needs to switch from a closed state to an open state or from an open state to a closed state according to the working conditions of the vehicle, the drive unit 1 works to drive the drive shaft 3 to rotate. Since multiple intermittent motion mechanisms are connected to the drive shaft 3 and each blade assembly 4 respectively, the rotation of the drive shaft 3 drives the multiple intermittent motion mechanisms to move. Each intermittent motion mechanism drives the blade assemblies 4 at different positions to rotate gradually. Compared with the prior art, which drives all blades to rotate synchronously by a motor, requiring a large torque and increasing the cost of the motor, this application effectively reduces the torque required by the drive unit 1 to drive the blade assembly 4 to rotate because only some blade assemblies rotate within a unit time period. In other words, it does not require all blade assemblies 4 to rotate synchronously. A smaller drive unit 1, such as a motor, can be selected to meet the requirement of the blade assemblies 4 at different positions rotating sequentially, effectively reducing the cost of the drive unit 1.

[0049] Furthermore, by using various intermittent motion mechanisms to drive the blade components 4 at different positions to rotate gradually in sequence, the diverse needs of consumers for the rotation mode of the blade components 4 of the air intake grille are met, giving the air intake grille a certain "welcome mode" effect.

[0050] In one embodiment of the present invention, combined with Figure 2 and Figure 3 As shown, the intermittent motion mechanism includes an intermittent transmission assembly 5 and a tie rod assembly 6. The blade assembly 4 includes multiple blade units 41 and multiple first rotating shafts 42. Each blade unit 41 is installed in the housing 2 through each of the first rotating shafts 42. The tie rod assembly 6 is hinged to the multiple blade units 41. The intermittent transmission assembly 5 is connected to the drive shaft 3 and the tie rod assembly 6 respectively, and is used to convert the rotational motion of the drive shaft 3 into the linear reciprocating motion of the tie rod assembly 6, so as to drive the multiple blade units 41 to rotate through the tie rod assembly 6.

[0051] It should be noted that each blade unit 41 is installed inside the housing 2 via a first rotating shaft 42, so that the blade unit 41 can rotate around the corresponding first rotating shaft 42 to open or close under the pulling force of the pull rod assembly 6.

[0052] Each intermittent transmission assembly 5 drives the blade assemblies 4 at different positions to rotate sequentially via a corresponding tie rod assembly 6. Specifically, when a blade unit 41 needs to rotate to open or close, the drive unit 1 operates to drive the drive shaft 3 to rotate. Subsequently, each intermittent transmission assembly 5 converts the rotational motion of the drive shaft 3 into the linear reciprocating motion of the corresponding tie rod assembly 6. The linear reciprocating motion of the tie rod assembly 6 then applies a push-pull force to the blade unit 41 in the blade assembly 4, thereby causing all blade units 41 of the corresponding blade assembly 4 to rotate around the corresponding first rotating shaft 42. The reciprocating motion direction of the tie rod assembly 6 is perpendicular to the extension direction of the drive shaft 3; in other words, the motion direction of the tie rod assembly 6 is the direction of travel of the vehicle. One end of the tie rod assembly 6 is connected to the middle part of the blade unit 41 or the end away from the first rotating shaft 42.

[0053] The arrangement direction of the plurality of blade units 41 is consistent with the extension direction of the blade assembly 4. At least a portion of the blade assemblies 4 extend at an angle to the extension direction of the drive shaft 3. Therefore, the arrangement direction of the plurality of blade units 41 is also inclined relative to the drive shaft 3. Since at least a portion of the blade assemblies 4 extend at an angle to the extension direction of the drive shaft 3 (e.g., the extension direction of the drive shaft 3 could be the left-right direction of the vehicle), the blade assemblies 4 extend at an inclined angle relative to the left-right direction of the vehicle. Because each intermittent motion mechanism drives the blade assemblies 4 at different positions to rotate sequentially under the rotation of the drive shaft 3, all blade assemblies 4 gradually open or close, satisfying diverse consumer demands for the rotation mode of the air intake grille blade assemblies. This gives the car's air intake grille a certain "welcome mode" effect, thereby enhancing the car's technological feel.

[0054] In related technologies, the blade rotation is driven by a method such as a tie rod extending laterally along the vehicle, multiple guide posts spaced apart on the tie rod, and multiple blades arranged horizontally along the extension direction of the tie rod within the mounting holes (air inlets) of the grille. The tie rod is limited to moving along its own axial direction. A guide groove matching the guide post is formed in the bottom pivot of the blade. A drive assembly is connected to the end of the tie rod to drive the tie rod to move left and right along its own extension direction, so that each guide post on the tie rod slides within the guide groove of each blade, causing the blade to rotate around the tie rod. The guide groove includes a first straight section, a spiral section, and a second straight section connected in sequence. When the guide post is located in the first straight section, the blade closes the air inlet of the grille 22 and the area of ​​the air intake channel is minimized. When the guide post is located in the second straight section, the blade opens the air inlet and the area of ​​the air intake channel is maximized. As the blade moves from the first straight section to the second straight section within the spiral section, the area of ​​the air intake channel gradually increases. Among them, the mounting holes of the blades can serve as the air intake of the air intake grille, and the air intake channel is less than or equal to the air intake.

[0055] However, the above-mentioned related technologies have the following drawbacks: First, since the blade rotation is controlled by the movement of the guide post on the tie rod within the guide groove of the blade, a larger diameter blade shaft is required to provide sufficient space for the guide groove. Consequently, the grille requires a larger area to fix the blade, resulting in a smaller mounting hole (air inlet) area for the blade in the same area, thus reducing the air intake channel. However, in this embodiment, the tie rod assembly 6 directly drives the blade unit 41 to rotate around the first shaft 42, which allows the first shaft 42 corresponding to the blade unit 41 to be designed to be smaller, so that the entire outer shell 2 in the air intake grille has a larger air intake channel.

[0056] Secondly, in the aforementioned related technologies, the rotation of the blades is controlled by moving the tie rod left and right so that each guide post slides in the guide groove of the corresponding blade. When the car is driving at high speed, the blades will be subjected to greater wind pressure. Since the force driving the blade rotation is mainly at the bottom of the blade, a greater driving force is required to drive the blade rotation to open or close the air intake. This results in the need to select a motor with a larger torque to drive the entire air intake grille blades to rotate, thereby increasing the initial cost of the motor. However, in this embodiment, since the blade unit 41 is hinged to the first rotating shaft 42, the middle position of the blade unit 41 or the end away from the first rotating shaft 42 can be pushed and pulled by the tie rod assembly 6. A very small pushing and pulling force can be output to drive the blade unit to rotate to open or close the air intake of the air intake grille, thereby reducing the torque of the initially selected motor. In other words, a smaller drive unit 1, such as a motor, can be selected to meet the needs of the blade units 41 of the blade assembly 4 at different positions to rotate sequentially, thereby reducing the cost of the motor during the initial car assembly.

[0057] Thirdly, in the aforementioned related technologies, since the bottom of the blade is provided with a guide groove, and the air intake grille is located at the front bumper of the car, foreign objects such as mud and dust can easily enter the guide groove of the blade, causing the blade to jam and unable to rotate to open or close. However, in this embodiment, the blade unit 41 is installed in the housing 2 through the first rotating shaft 42, which has a certain function of preventing foreign objects from entering, ensuring that the blade assembly 4 can rotate normally, and correspondingly reducing the frequency of maintenance and cleaning of the blade assembly 4.

[0058] In one embodiment of the present invention, combined with Figure 3 and Figure 6 As shown, the pull rod assembly 6 includes an active pull rod 61, a connecting plate 62, and a connecting rod portion 63. The two ends of the active pull rod 61 are respectively connected to the intermittent transmission assembly 5 and the connecting plate 62. Multiple connecting rod portions 63 are respectively connected to the connecting plate 62. The connecting rod portion 63 is hinged to at least one blade unit 41.

[0059] It should be noted that the intermittent transmission assembly 5 is used to drive the active pull rod 61 to reciprocate linearly in the direction perpendicular to the extension of the drive shaft 3 under the rotation of the drive shaft 3, so that the active pull rod 61 drives multiple connecting rod parts 63 to reciprocate linearly in the direction perpendicular to the extension of the drive shaft 3 through the connecting plate 62. Since the blade unit 41 is mounted on the housing 2 through the first rotating shaft 42, each connecting rod part 63 can drive at least one blade unit 41 to rotate.

[0060] Each connecting rod 63 drives at least one rotatable blade unit 41, the specific number of which can be determined according to the shape and size of the individual blade unit 41; wherein the blade unit 41 is a polygonal structure, such as a triangle, rhombus, etc., without specific limitation.

[0061] In one embodiment of the present invention, combined with Figure 2 and Figure 3 As shown, the outer casing 2 includes an outer frame 21, a grille 22, and a fixing bracket 23. A plurality of blade assemblies 4 are installed inside the outer frame 21 through the grille 22. The drive shaft 3 passes through the outer frame 21. A plurality of fixing brackets 23 are spaced apart inside the outer frame 21 along the extension direction of the drive shaft 3. The fixing bracket 23 is provided with a first guide hole. The active pull rod 61 passes through the first guide hole and is used to reciprocate linearly within the first guide hole along the extension direction perpendicular to the drive shaft 3.

[0062] It should be noted that the grille 22 provides a mounting base for each blade assembly 4, and the grille 22 can be installed inside the housing 2; multiple mounting brackets 23 are spaced apart inside the outer frame 21 along the extension direction of the drive shaft 3 (the transverse direction of the vehicle), and the extension direction of each mounting bracket 23 is parallel to the extension direction of the blade assembly 4, so that the intermittent transmission assembly 5 can drive the active tie rod 61 to reciprocate back and forth in the first guide hole under the rotation of the drive shaft 3, thereby driving the corresponding blade assembly 4 to rotate. At this time, the first guide hole of the mounting bracket 23 can play the role of mounting and guiding the active tie rod 61 in the tie rod assembly 6; wherein, since the extension direction of the drive shaft 3 is the transverse direction of the vehicle (the left-right direction of the vehicle), and is parallel to the extension direction of the blade assembly 4, the intermittent transmission assembly 5 can drive the active tie rod 61 to reciprocate back and forth in the first guide hole under the rotation of the drive shaft 3, thereby driving the corresponding blade assembly 4 to rotate. Figure 2 In the coordinate system, the X-axis is parallel to the direction of the car, while the direction perpendicular to the extension of drive shaft 3 is the longitudinal direction of the car (the front-to-back direction of the car), and is parallel to... Figure 2 Since the Y-axis of the coordinate system is parallel, the direction of motion of the active linkage 61 is the front-to-back direction of the car.

[0063] In one embodiment of the present invention, combined with Figure 3As shown, the pull rod assembly 6 also includes a driven pull rod 64, and the fixing frame 23 is also provided with a second guide hole. A plurality of driven pull rods 64 are arranged on the connecting plate 62 along the extension direction of the blade assembly 4 and distributed on both sides of the active pull rod 61. Each driven pull rod 64 passes through each of the second guide holes and is used to reciprocate linearly within the second guide holes.

[0064] It should be noted that each tie rod assembly 6 contains one active tie rod 61 and multiple driven tie rods 64, corresponding to the number of second guide holes. Since the multiple driven tie rods 64 are distributed on the connecting plate 62 and located on both sides of the active tie rod 61, the active tie rod 61 moves back and forth along the first guide hole under the action of the intermittent transmission assembly 5. The driven tie rods 64 on the connecting plate 62 move back and forth along their respective second guide holes under the action of the active tie rod 61. Through the multiple second guide holes on the fixing frame 23, not only are the back and forth movement distances of the active tie rod 61 and the driven tie rod 64 in each tie rod assembly 6 the same or basically the same, so that the pushing and pulling forces from each tie rod in the tie rod assembly 6 on the multiple blade units 41 in the blade assembly 4 are the same, ensuring that the multiple blade units 41 in the blade assembly 4 can rotate to ensure a certain air intake volume, but it can also prevent the connecting plate 62 from being damaged due to uneven force, thereby extending the service life of the tie rod assembly 6.

[0065] In one embodiment of the present invention, combined with Figure 2 As shown, the drive unit 1 is disposed inside the housing 2 and between the two intermittent transmission components 5 near the center point of the drive shaft 3. The drive unit 1 is connected to the drive shaft 3 and is used to drive the drive shaft 3 to rotate so as to simultaneously drive the multiple intermittent transmission components 5 to operate.

[0066] It should be noted that the drive unit 1 is housed within the housing 2, thereby protecting the drive unit 1 through the housing 2. By positioning the drive unit 1 between the two intermittent transmission components 5 near the center point of the drive shaft 3, when the drive unit 1 drives the drive shaft 3 to rotate, it not only ensures that the multiple intermittent transmission components 5 on the drive shaft 3 are subjected to uniform force and can smoothly drive the blade components 4 at different positions to rotate sequentially and in an orderly manner through the corresponding tie rod components 6, so that the car's air intake grille has a certain "welcome mode" effect, but also avoids the breakage caused by the uneven distribution of the multiple intermittent transmission components 5 on both sides of the drive unit 1 on the drive shaft 3, thereby extending the service life of the drive shaft 3.

[0067] Specifically, the drive unit 1 can be a rotary motor. Since multiple intermittent transmission components 5 are distributed on the drive shaft 3 and located on both sides of the drive unit 1, the drive unit 1 can be a dual-output shaft motor.

[0068] For example, if the number of intermittent transmission components 5 is eight, then the drive unit 1 is located between the fourth and fifth intermittent transmission components 5 arranged along the extension direction of the drive shaft 3; if the number of intermittent transmission components 5 is nine, then the drive unit 1 is located between the fifth and sixth intermittent transmission components 5 arranged along the extension direction of the drive shaft 3, see... Figure 2 As shown.

[0069] In order to achieve a better "welcome mode" effect for the air intake grille, all blade assemblies 4 can be arranged in the following manner, for example, combined with... Figure 2 As shown, multiple blade units 41 in a blade assembly 4 located in the middle area of ​​the grille can be arranged in a triangular pattern, and the corresponding tie rod assembly is also a triangular structure. The extension directions of the left and right blade assemblies located in the middle area of ​​the grille are set at an angle. For example, the extension direction of each blade assembly 4 on the left is inclined downward from the middle area of ​​the grille toward the left, while the extension direction of each blade assembly 4 on the right is inclined downward from the middle area of ​​the grille toward the right. This allows all blade assemblies 4 to gradually and orderly rotate from the center area of ​​the grille to the left and right sides of the grille to open or close the air intake of the air intake grille. This not only adjusts the air intake volume of the air intake grille, but also gives the car's air intake grille a better "welcome mode" effect.

[0070] In one embodiment of the present invention, combined with Figure 4 , Figure 5 and Figure 6 As shown, the intermittent transmission assembly 5 includes a cam 51, which has a mounting hole 515 and a guide structure 511. The cam 51 is sleeved on the drive shaft 3 through the mounting hole 515 and is used to rotate synchronously with the drive shaft 3. The guide structure 511 is arranged around the mounting hole 515, and the radius of one end of the guide structure 511 relative to the mounting hole 515 is smaller than the radius of the other end of the guide structure 511 relative to the mounting hole 515. One end of the pull rod assembly 6 is slidably connected to the guide structure 511 and is used to slide along the guide structure 511 during the rotation of the cam 51.

[0071] It should be noted that the intermittent transmission component 5 can be a cam 51, and the shape and diameter of the mounting hole 515 match the drive shaft 3 so that when the cam 51 is sleeved on the drive shaft 3 through the mounting hole 515, it can rotate synchronously with the drive shaft 3; the guide structure 511 can serve as a sliding channel for the active pull rod 61 in the pull rod assembly 6; since the radius of one end of the guide structure 511 relative to the mounting hole 515 is smaller than the radius of the other end of the guide structure 511 relative to the mounting hole 515, in other words, the distances between the two ends of the guide structure 511 and the mounting hole 515 are not the same, the guide structure 511 can be an irregular arc structure, so that the intermittent transmission components 5 using cam 51 at different positions drive the blade components 4 at different positions to rotate in different sequences (sequentially) through the corresponding pull rod assembly 6, in other words, within a unit time period, the drive unit 1 actually drives only a portion of the blade components 4 to rotate, thereby effectively reducing the output power of the drive unit 1.

[0072] Since the guide structure 511 is set around the mounting hole 515, it can be understood that the above descriptions of radius, central angle, etc. are all obtained with the mounting hole as the center.

[0073] Specifically, the guide structure 511 can be an arc-shaped through hole structure provided on the cam 51, an arc-shaped groove structure provided on the cam 51, or other channel structures that can slide as the tie rod assembly 6, without being specifically limited here.

[0074] In one embodiment of the present invention, combined with Figure 10 As shown, the areas enclosed by the lines connecting the two ends of the guide structure 511 to the mounting holes 515 are successively divided into a first equal radius area 512, a variable diameter area 513, and a second equal radius area 514, and the radii of the three are arranged in descending order.

[0075] The central angles of the variable diameter regions 513 of each cam 51 are the same, and the central angles corresponding to the first equal radius regions 512 of each cam 51 gradually change in the direction from the center of the drive shaft 3 to the end of the drive shaft 3.

[0076] It should be noted that the area enclosed by the lines connecting the two ends of the guide structure 511 of each cam 51 to the mounting hole 515 can be divided into three regions: a first equal radius region 512, a variable diameter region 513, and a second equal radius region 514. The radius of the first equal radius region 512 is larger than the radii of the variable diameter region 513 and the second equal radius region 514. The radius of the variable diameter region 513 gradually decreases; for example, the radius of the variable diameter region 513 gradually decreases from the first equal radius region 512 to the second equal radius region 514, and the radius of the second equal radius region 514 is the smallest relative to the first equal radius region 512 and the variable diameter region 513. The central angles of the variable diameter regions 513 of the multiple cams 51 are the same, ensuring that the multiple tie rod assemblies 6 move the same distance forward and backward under the action of the corresponding cam 513, thus ensuring that all blade assemblies 4 rotate at the same angle within the corresponding variable diameter region 513 of the tie rod assembly 6. When the active pull rod 61 of the pull rod assembly 6 is in the first equal radius region 512 and the second equal radius region 514 of the guide structure 511, the active pull rod 61 of the pull rod assembly does not move back and forth, and the blade assembly corresponding to the pull rod assembly 6 does not rotate.

[0077] The gradual change in angle of the first equal radius region 512 of each cam 51 from the center position of the drive shaft 3 to the end of the drive shaft 3 means that it gradually increases or gradually decreases, for example, in combination with Figure 10 As shown, if the number of cams 51 is six, Figure 10 (a) is the cam 51 closest to the center of the drive shaft 3. Figure 10 (c) For the cam 51 closest to the end of the drive shaft 3, the angle of the first equal radius region 512 of each cam 51 gradually increases from the center of the drive shaft 3 to the end of the drive shaft 3; if the number of cams 51 is six, Figure 10 (c) is the cam 51 closest to the center of the drive shaft 3. Figure 10 (a) is the cam 51 closest to the end of the drive shaft 3. Therefore, the angle of the first equal radius region 512 of each cam 51 gradually decreases from the center of the drive shaft 3 to the end of the drive shaft 3.

[0078] When all blades are fully closed (see...) Figure 7As shown), the active tie rods 61 in all tie rod assemblies 6 are located in the first equal radius region 512 of cam 51. When the blade assembly 4 starts to rotate, the active tie rod 61 of the tie rod assembly 6 in the middle region of the grille is in the variable diameter region 513. At this time, the blade assembly 4 corresponding to the tie rod assembly 6 in the middle region of the entire grille 22 rotates first, and the blade assembly 4 corresponding to the middle position of the drive shaft 3 to the blade assembly 4 corresponding to the end of the drive shaft 3 rotates sequentially until the blade corresponding to the center position of the drive shaft 3 is in the fully open state, the blades corresponding to the adjacent positions of the center of the drive shaft 3 are in the half-open state, and the blade assembly 4 corresponding to the end of the drive shaft 3 is still in the closed state. Figure 8 As shown, this not only reduces the output power of the drive unit 1 by driving a portion of the blade assemblies 4 via the cam 51 and the tie rod assembly 6 to rotate within a unit time, thus reducing the vehicle's electrical energy consumption and achieving more energy-efficient rotation of the blade assemblies 4 to open or close, but also enables the cam 51 to drive each blade assembly 4 to rotate sequentially via each tie rod assembly 6 to open and close the air intake on the grille, giving the vehicle's air intake grille a welcome mode function and enhancing the vehicle's technological feel. When all blade assemblies 4 are in the fully open position, the active tie rods 61 of all tie rod assemblies 6 are in the second equal radius region 514 of the cam 51.

[0079] Among them, combined Figure 2 As shown, there are nine cams 51. The four cams on the left and the four cams on the right are symmetrical and their dimensions are different from those of the cam 51 in the middle. Furthermore, the dimensions of the four gears on one side are different. In other words, among the nine cams 51, there are five different sizes of cams 51.

[0080] In one embodiment of the present invention, combined with Figure 11 and Figure 12 As shown, the intermittent transmission assembly 5 is a Geneva drive structure, which includes a drive wheel 521, a Geneva wheel 522, a second rotating shaft 523, and a lever 524. The drive wheel 521 is sleeved on the drive shaft 3 and has a rotating pin 525. The Geneva wheel 522 is disposed inside the housing 2 via the second rotating shaft 523 and is used to rotate around the second rotating shaft 523. The Geneva wheel 522 has a radial groove that matches the rotating pin 525. The groove 5221 is formed by hinges at both ends of the lever 524 to the grooved wheel 522 and the pull rod assembly 6, respectively. The grooved wheel 522 is tightly fitted to the circumferential sidewall of the drive wheel 521. During the rotation of the grooved wheel 522 driven by the drive wheel 521, the rotating pins 525 at different positions enter the radial groove 5221 one after another, so as to convert the continuous rotational motion of the drive wheel 521 into the push-pull force of the lever 524 through the lever 524 into the sequential linear motion of the pull rod assembly 6 at different positions.

[0081] It should be noted that the intermittent transmission assembly 5 is a Geneva wheel transmission structure. The drive wheel 521 has a shaft hole in the middle, and the drive wheel 521 is sleeved on the drive shaft 3 through the shaft hole so that the drive wheel 521 can rotate synchronously with the drive shaft 3. A rotating pin 525 is provided at one axial end of the drive wheel 521. The Geneva wheel 522 can be installed in the outer frame 21 of the housing 2 through the second rotating shaft 523 so that the Geneva wheel 522 can rotate around the second rotating shaft 523. A radial groove 5221 is provided on the Geneva wheel 522. The radial groove 5221 is used to allow the rotating pin 525 of the same drive wheel 521 to enter intermittently so as to drive the pull rod assembly 6 to reciprocate back and forth through the lever 524. The radial grooves 5221 on the Geneva wheels 522 at different positions are used to allow the rotating pins 525 of the drive wheels 521 at different positions to enter sequentially so as to drive the pull rod assembly 6 to reciprocate back and forth through the lever 524.

[0082] Specifically, when the blade assembly 4 needs to rotate, the drive unit 1 works to drive the drive shaft 3 to drive the drive wheel 521 to rotate. During the rotation of the same drive wheel 521, its rotating pin 525 intermittently enters the radial groove 5221 of the grooved wheel 522, so that the grooved wheel 522 rotates around the second rotating shaft 523. During the rotation of the grooved wheel 522, the lever 524 drives the pull rod assembly 6 to move back and forth, thereby driving the blade unit 41 in the corresponding blade assembly 4 to rotate, thereby realizing the rotation of the blade assembly 4 to open or close the air inlet opened on the grille 22.

[0083] In one embodiment of the present invention, combined with Figure 12 As shown, the grooved wheel 522 is also provided with an arc-shaped groove 5222. Multiple arc-shaped grooves 5222 are arranged around the center of the drive wheel 521. The circumferential sidewall of the drive wheel 521 is a convex locking arc 5211, which is closely attached to the arc-shaped groove 5222.

[0084] It should be noted that there are two or more arc-shaped grooves 5222, and the two or more arc-shaped grooves 5222 are spaced around the center of the drive wheel 521 on the grooved wheel 522. The circumferential sidewall of the drive wheel 521 is a convex locking arc 5211, which matches the shape and curvature of the arc-shaped grooves 5222 on the grooved wheel 522.

[0085] Specifically, as follows: Figure 11 and 12As shown, before the rotating pin 525 on the drive wheel 521 enters the radial groove 5221 of the grooved wheel 522, the arc-shaped groove 5222 of the grooved wheel 522 is tightly fitted to the circumferential sidewall of the drive wheel 521, so that the convex locking arc 5211 locks the arc-shaped groove 5222, and the grooved wheel 522 remains stationary. When the rotating pin 525 enters the radial groove 5221, the convex locking arc 5211 and the arc-shaped groove 5222 just separate, so that the grooved wheel 522 can be driven to rotate by the rotating pin 525. When the rotating pin 525 disengages from the radial groove 5221, the convex locking arc 5211 locks the arc-shaped groove 5222 again, so that the grooved wheel 522 remains stationary. Therefore, when the drive wheel 521 rotates continuously, the grooved wheel 522 is driven to rotate intermittently.

[0086] In one embodiment of the present invention, the intermittent transmission component 5 is a gear transmission structure.

[0087] It should be noted that the gear transmission structure can be a gear and rack transmission. The working principle of gear and rack transmission is to convert the rotary motion of the gear into the reciprocating linear motion of the rack, or to convert the reciprocating linear motion of the rack into the rotary motion of the gear.

[0088] Another embodiment of the present invention provides a thermal management system, including the air intake grille as described in the above embodiment.

[0089] It should be noted that the thermal management system is used to regulate the temperature of the car engine and the interior of the vehicle. The thermal management system may include the cooling system, heating system, air intake grille, and air conditioning system.

[0090] The cooling system typically includes a radiator, water pump, and fan, which circulates coolant through the water pump to lower the engine temperature and prevent overheating. The heating system uses a fan to direct the heat generated by the engine into the air vents inside the vehicle, thus heating the air inside. The air conditioning system primarily regulates the temperature of the air inside the vehicle and can also indirectly help cool the engine. The grille actively regulates the airflow into the engine compartment by rotating its blade assembly. During a cold start, the grille blades close to allow the engine to warm up quickly; when the vehicle temperature is too high, the blades open to allow the engine to dissipate heat as quickly as possible. The thermal management system shares all the technical effects of the grille and will not be elaborated upon here.

[0091] Another embodiment of the present invention provides a car front face, including the air intake grille as described in the above embodiment.

[0092] It should be noted that the front of a car may include headlights, grille, front bumper, etc.

[0093] The headlights are a crucial component of the car's front fascia, primarily providing illumination and signaling. The grille, located in the center of the front, guides air into the engine compartment for cooling and oxygen supply. The front bumper, situated below the front, absorbs energy during collisions with the front of the car and pedestrians. Front bumpers are typically made of plastic or other energy-absorbing materials. The technical effects of the grille on the front of the car are fully explained here and will not be elaborated upon further.

[0094] Another embodiment of the present invention provides an automobile, including a thermal management system as described in the above embodiment, or a front face of the automobile as described in the above embodiment, or an air intake grille as described in the above embodiment.

[0095] It should be noted that the air intake grille can be positioned at the front of the car, behind the front bumper, and can be connected to the front bumper. The car essentially possesses all the technical effects of an air intake grille, which will not be elaborated upon here.

[0096] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An air intake grille, characterized in that, It includes a housing (2), a drive unit (1), a drive shaft (3), an intermittent motion mechanism, and a blade assembly (4). The drive shaft (3) passes through the housing (2), and a plurality of blade assemblies (4) and a plurality of intermittent motion mechanisms are arranged along the extension direction of the drive shaft (3). The drive unit (1) is connected to the drive shaft (3) and is used to drive the drive shaft (3) to rotate. Each of the intermittent motion mechanisms is connected to each of the blade assemblies (4) in a one-to-one correspondence. Each of the intermittent motion mechanisms is connected to the drive shaft (3) and is used to drive the blade assemblies (4) at different positions to rotate sequentially under the rotation of the drive shaft (3). The intermittent motion mechanism includes an intermittent transmission assembly (5) and a tie rod assembly (6). The blade assembly (4) includes multiple blade units (41) and multiple first rotating shafts (42). Each blade unit (41) is installed in the housing (2) through each of the first rotating shafts (42). The tie rod assembly (6) is hinged to the multiple blade units (41). The intermittent transmission assembly (5) is connected to the drive shaft (3) and the tie rod assembly (6) respectively, and is used to convert the rotational motion of the drive shaft (3) into the linear reciprocating motion of the tie rod assembly (6), so as to drive the multiple blade units (41) to rotate through the tie rod assembly (6). The intermittent transmission assembly (5) includes... The cam (51) is provided with a mounting hole (515) and a guide structure (511). The cam (51) is sleeved on the drive shaft (3) through the mounting hole (515) and is used to rotate synchronously with the drive shaft (3). The guide structure (511) is arranged around the mounting hole (515), and the radius of one end of the guide structure (511) relative to the mounting hole (515) is smaller than the radius of the other end of the guide structure (511) relative to the mounting hole (515). One end of the pull rod assembly (6) is slidably connected to the guide structure (511) and is used to slide along the guide structure (511) during the rotation of the cam (51).

2. An air intake grille, characterized in that, It includes a housing (2), a drive unit (1), a drive shaft (3), an intermittent motion mechanism, and a blade assembly (4). The drive shaft (3) passes through the housing (2), and a plurality of blade assemblies (4) and a plurality of intermittent motion mechanisms are arranged along the extension direction of the drive shaft (3). The drive unit (1) is connected to the drive shaft (3) and is used to drive the drive shaft (3) to rotate. Each of the intermittent motion mechanisms is connected to each of the blade assemblies (4) in a one-to-one correspondence. Each of the intermittent motion mechanisms is connected to the drive shaft (3) and is used to drive the blade assemblies (4) at different positions to rotate sequentially under the rotation of the drive shaft (3). The drive unit (1) is a dual-output shaft motor. The intermittent motion mechanism includes an intermittent transmission assembly (5) and a pull rod assembly (6). The blade assembly (4) includes multiple blade units (41) and multiple first rotating shafts (42). Each blade unit (41) is installed inside the housing (2) through each of the first rotating shafts (42). The pull rod assembly (6) is hinged to the multiple blade units (41). The intermittent transmission assembly (5) is connected to the drive shaft (3) and the pull rod assembly (6) respectively, and is used to convert the rotational motion of the drive shaft (3) into the linear reciprocating motion of the pull rod assembly (6), so as to drive the multiple blade units (41) to rotate through the pull rod assembly (6). The intermittent transmission assembly (5) is a Geneva wheel transmission structure. The Geneva wheel transmission structure includes a drive wheel (521), a Geneva wheel (522), a second rotating shaft (523), and a lever (524). The drive wheel (521) is sleeved on the drive shaft ( 3) The drive wheel (521) is provided with a rotating pin (525). The grooved wheel (522) is set in the outer shell (2) through the second rotating shaft (523) and the grooved wheel (522) is used to rotate around the second rotating shaft (523). The grooved wheel (522) is provided with a radial groove (5221) that matches the rotating pin (525). The two ends of the lever (524) are respectively hinged to the grooved wheel (522) and the pull rod assembly (6). The grooved wheel (522) is tightly attached to the circumferential side wall of the drive wheel (521). During the process of the drive wheel (521) driving the grooved wheel (522) to rotate, the rotating pin (525) at different positions enters the radial groove (5221) one after another, so as to convert the continuous rotational motion of the drive wheel (521) into the push and pull force of the lever (524) through the lever (524) into the sequential linear motion of the pull rod assembly (6) at different positions.

3. The air intake grille according to claim 1 or 2, characterized in that, The pull rod assembly (6) includes an active pull rod (61), a connecting plate (62), and a connecting rod part (63). The two ends of the active pull rod (61) are respectively connected to the intermittent transmission assembly (5) and the connecting plate (62). A plurality of connecting rod parts (63) are respectively connected to the connecting plate (62). The connecting rod part (63) is hinged to at least one blade unit (41).

4. The air intake grille according to claim 3, characterized in that, The outer casing (2) includes an outer frame (21), a grille (22), and a fixing bracket (23). Multiple blade assemblies (4) are installed in the outer frame (21) through the grille (22). The drive shaft (3) passes through the outer frame (21). Multiple fixing brackets (23) are spaced apart in the outer frame (21) along the extension direction of the drive shaft (3). The fixing bracket (23) is provided with a first guide hole. The active pull rod (61) passes through the first guide hole and is used to reciprocate linearly in the first guide hole along the extension direction perpendicular to the drive shaft (3).

5. The air intake grille according to claim 4, characterized in that, The pull rod assembly (6) further includes a driven pull rod (64), and the fixing frame (23) is also provided with a second guide hole. A plurality of driven pull rods (64) are arranged on the connecting plate (62) along the extension direction of the blade assembly (4) and distributed on both sides of the active pull rod (61). Each driven pull rod (64) passes through each of the second guide holes and is used for linear reciprocating motion within the second guide hole.

6. The air intake grille according to claim 1, characterized in that, The drive unit (1) is disposed inside the housing (2) and between the two intermittent transmission components (5) near the center point of the drive shaft (3). The drive unit (1) is connected to the drive shaft (3) and is used to drive the drive shaft (3) to rotate so as to simultaneously drive the multiple intermittent transmission components (5).

7. The air intake grille according to claim 6, characterized in that, The areas enclosed by the lines connecting the two ends of the guide structure (511) to the mounting holes (515) are respectively divided into a first equal radius area (512), a variable diameter area (513), and a second equal radius area (514), and the radii of the three are arranged in descending order. The central angles corresponding to the variable diameter regions (513) of each cam (51) are the same, and the central angles corresponding to the first equal radius regions (512) of each cam (51) gradually change in the direction from the center position of the drive shaft (3) to the end of the drive shaft (3).

8. The air intake grille according to claim 2, characterized in that, The drive unit (1) is disposed inside the housing (2) and between the two intermittent transmission components (5) near the center point of the drive shaft (3). The drive unit (1) is connected to the drive shaft (3) and is used to drive the drive shaft (3) to rotate so as to simultaneously drive the multiple intermittent transmission components (5).

9. The air intake grille according to claim 8, characterized in that, The grooved wheel (522) is also provided with an arc-shaped groove (5222), and a plurality of arc-shaped grooves (5222) are arranged around the center of the drive wheel (521). The circumferential sidewall of the drive wheel (521) is a convex locking arc (5211), and the convex locking arc (5211) is closely attached to the arc-shaped groove (5222).

10. A thermal management system, characterized in that, Includes the air intake grille as described in any one of claims 1 to 9.

11. A car front fascia, characterized in that, Includes the air intake grille as described in any one of claims 1 to 9.

12. A car, characterized in that, This includes the thermal management system as described in claim 10, or the front fascia of a vehicle as described in claim 11, or the air intake grille as described in any one of claims 1 to 9.

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