Vehicle-mounted air outlet structure based on thumb wheel control

Abstract

The utility model relates to the technical field of automobile air outlet, concretely relates to vehicle-mounted air outlet structure based on thumb wheel control, include: air outlet casing, the air outlet casing is equipped with air outlet passage, is equipped with first axle groove and second axle groove respectively in the both sides of air outlet casing to air outlet passage air outlet direction, a plurality of blades, the first end of every blade is connected with crank structure, the utility model discloses the pin shaft and thumb wheel integrative injection molding, and the joint place sets up the gap of stress buffering, when the pin axle drives the connecting rod to bear the load, the gap area can occur controllable elastic microdeformation, thereby effectively absorbs and disperses operating stress, avoids stress concentration in the root, and the anti-fatigue fracture ability of plastic component under repeated operation is greatly promoted, and the deficiency that material rigidity possibly exists is made up with structural innovation, and the independent metal pin part and its press -fitting process are dispensed with, and the number of parts and assembly steps are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive air vent technology, and more specifically to an in-vehicle air vent structure based on thumb wheel control. Background Technology

[0002] The air conditioning vents in a car are key components in the interior. Their airflow adjustment function is usually achieved by assembling multiple parts such as housing, blades, connecting rods, thumbwheels, and metal pins. Users can adjust the airflow direction of the vents by rotating the thumbwheel to rotate the blades.

[0003] In the existing structure, the metal pin, as a key connecting component between the thumb wheel and the blade connecting rod, is mainly used to withstand the large stress generated when the thumb wheel is turned, in order to make up for the lack of rigidity of the pure plastic structure. However, this traditional structure has problems such as a large number of parts and complex assembly processes, which leads to an extended overall assembly cycle and increased production costs. It also puts some pressure on supply chain management and inventory control.

[0004] Therefore, it is necessary to optimize the existing air outlet structure to reduce the number of parts and simplify the assembly process while ensuring operational strength and reliability, thereby improving production efficiency and cost-effectiveness. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a vehicle air vent structure based on thumb wheel control, comprising: An air outlet housing is provided with an air outlet channel, and a first shaft groove and a second shaft groove are respectively provided on both sides of the air outlet housing facing the air outlet channel. Multiple blades, each blade having a crank structure connected to its first end and a positioning shaft connected to its second end; the crank structure is connected to the first shaft groove and the positioning shaft is connected to the second shaft groove. A linkage structure is connected to a crank structure on one side of multiple blades, and the linkage structure can move in a direction perpendicular to the outlet plane of the air outlet channel so that the multiple blades rotate synchronously and change the direction of airflow in the air outlet channel. A thumb wheel is rotatably connected to the air outlet housing; The thumb wheel has an integrally injection-molded pin, and there is a gap between the pin and the body of the thumb wheel. The pin is connected to the linkage structure and is used to move the linkage structure along the target direction. When the pin moves the linkage structure, a micro-deformation is formed at the gap to reduce the impact stress.

[0006] Preferably, the pin and the thumb wheel are fixedly connected by a connecting block, and the gap is provided around the connecting block.

[0007] Preferably, the direction of the force applied after the pin contacts the connecting rod structure is defined as the first direction, and the gap is at least distributed in the first direction.

[0008] Preferably, the gap is configured to be U-shaped and surround the outside of the connecting block.

[0009] Preferably, the outer wall of the air outlet housing is provided with a hollow shaft, and the thumb wheel is provided with a shaft hole. The shaft hole is fitted onto the outer wall of the hollow shaft, so that the thumb wheel rotates around the axis of the hollow shaft.

[0010] Preferably, the connecting rod structure is configured in an L-shape, including a first rod portion and a second rod portion, a plurality of the crank structures are connected to the first rod portion, and the pin is connected to the second rod portion.

[0011] Preferably, the outer wall of the air outlet housing is provided with a guide structure that contacts the first rod portion to restrict the movement direction of the connecting rod structure.

[0012] Preferably, the surface of the second rod is provided with a limiting groove, the pin extends into the limiting groove, and when the thumb wheel is rotated by the user, the pin abuts against the inner wall of the limiting groove to make the connecting rod structure move in the target direction.

[0013] Preferably, the crank structure has a first shaft at one end and a second shaft at the second end, the first shaft being fixedly connected to the blade and the second shaft being rotatably connected to the connecting rod structure.

[0014] Preferably, a cover is provided on a partial surface of the outer side of the thumb wheel, and the surface of the cover is provided with a textured surface.

[0015] Compared with the prior art, the advantages of this utility model are: The pin and thumb wheel of this utility model are integrally injection molded, and a stress-buffering gap is set at the connection. When the pin moves the connecting rod to bear the load, the gap area can undergo controllable elastic micro-deformation, thereby effectively absorbing and dispersing the operating stress, avoiding stress concentration at the root, and greatly improving the fatigue fracture resistance of the plastic component under repeated operation. The structural innovation makes up for the possible lack of material rigidity, eliminates the need for separate metal pin parts and their pressing process, and reduces the number of parts and assembly steps. Attached Figure Description

[0016] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is an exploded view of the vehicle air vent structure based on thumb wheel control, as shown in an embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of the air outlet housing shown in an embodiment of the present invention; Figure 3 This is a schematic diagram of the blade and connecting rod structure shown in the embodiment of this utility model; Figure 4 This is a schematic diagram of the thumb wheel structure shown in an embodiment of the present invention. Detailed Implementation

[0017] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0018] Combination Figure 1 As shown, this utility model proposes a vehicle air vent structure based on thumb wheel control, including an air vent housing 10, multiple blades 20, a connecting rod structure 30 and a thumb wheel 40. The air vent housing 10, multiple blades 20, connecting rod structure 30 and thumb wheel 40 are all injection molded parts.

[0019] Combination Figure 1 and Figure 2 As shown, the air outlet housing 10 is provided with an air outlet channel 101. A first shaft groove 11 and a second shaft groove are respectively provided on both sides of the air outlet housing 10 facing the air outlet channel 101. Each blade 20 has a crank structure 21 connected to its first end and a positioning shaft 201 connected to its second end. The crank structure 21 is connected to the first shaft groove 11 and the positioning shaft 201 is connected to the second shaft groove.

[0020] Specifically, the connecting rod structure 30 is connected to the crank structure 21 on one side of all the blades 20.

[0021] Thus, when the crank structure 21 is actuated by the connecting rod structure 30, all the blades 20 rotate synchronously, changing the angle of the blades 20.

[0022] Combination Figure 3 As shown, the crank structure 21 has a first shaft 211 at the first end and a second shaft 212 at the second end. The first shaft 211 is fixedly connected to the blade 20, and the second shaft 212 is rotatably connected to the connecting rod structure 30.

[0023] Thus, when the connecting rod structure 30 moves linearly, the crank structure 21 can efficiently convert the linear motion into the precise rotational motion of the blades 20 around their positioning axis, achieving synchronous and smooth adjustment of the angles of all blades 20, and ensuring the uniformity and controllability of the change in the air outlet direction.

[0024] In an optional embodiment, the linkage structure 30 can move in a direction perpendicular to the outlet plane of the air outlet channel 101. When moving, it causes multiple blades 20 to rotate synchronously, changing the direction of airflow out of the air outlet channel 101.

[0025] Combination Figure 3 As shown, the connecting rod structure 30 is constructed in an L-shape, including a first rod portion 31 and a second rod portion 32, with multiple crank structures 21 connected to the first rod portion 31 and a pin 43 connected to the second rod portion 32.

[0026] Furthermore, the outer wall of the air outlet housing 10 is provided with a guide structure 13 that contacts the first rod portion 31 to restrict the movement direction of the connecting rod structure 30.

[0027] In this way, the movement path of the linkage structure 30 can be constrained and guided to ensure that it moves in a straight line in a predetermined direction, preventing the linkage from deviating or jamming when subjected to force, and ensuring the reliability of the transmission process and the consistency of the operating feel.

[0028] The second rod 32 has a limiting groove 33 on its surface. The pin 43 extends into the limiting groove 33. When the thumb wheel 40 is rotated by the user, the pin 43 abuts against the inner wall of the limiting groove 33 to make the connecting rod structure 30 move in the target direction.

[0029] Thus, when the thumb wheel 40 rotates, the pin 43 contacts the inner wall of the limiting groove 33 and applies force, directly converting the rotational motion into a linear push or pull on the connecting rod structure 30.

[0030] Furthermore, the thumb wheel 40 is rotatably connected to the air outlet housing 10.

[0031] The outer wall of the air outlet housing 10 is provided with a hollow shaft 12, and the thumb wheel 40 is provided with a shaft hole 41. The shaft hole 41 is fitted onto the outer wall of the hollow shaft 12, so that the thumb wheel 40 rotates around the axis of the hollow shaft 12.

[0032] Furthermore, a pin 43 is integrally injection molded on the thumb wheel 40, and a gap is provided between the pin 43 and the body of the thumb wheel 40. The pin 43 is connected to the linkage structure 30 and is used to move the linkage structure 30 along the target direction. When the pin 43 moves the linkage structure 30, the impact stress is reduced by forming a micro-deformation at the gap.

[0033] This creates a buffer zone between the pin 43 and the thumb wheel 40 body. When the pin 43 moves the connecting rod to bear the load, this gap area can undergo controllable elastic micro-deformation, thereby effectively absorbing and dispersing the operating stress, avoiding stress concentration at the root, and improving the fatigue fracture resistance of the plastic component under repeated operation.

[0034] Furthermore, in combination Figure 4As shown, the pin 43 and the thumb wheel 40 are fixedly connected by a connecting block 42, and the connecting block 42 has a gap around it.

[0035] In this way, the gap around the connecting block 42 forms a deformation area, especially at the root of the shaft pin 43, which makes the stress concentration area more controllable and the buffering effect more significant, thereby improving the impact resistance.

[0036] Preferably, the direction of force applied after the pin 43 contacts the connecting rod structure 30 is defined as the first direction, and the gap is at least distributed in the first direction. Specifically, the gap is set as a U-shape surrounding the outside of the connecting block 42.

[0037] In this way, the most important force direction when the pin moves the connecting rod can be reinforced and buffered.

[0038] In an optional embodiment, a cover 44 is provided on a partial surface of the outer side of the thumb wheel 40, and the surface of the cover 44 is provided with a textured surface.

[0039] In this way, by setting up textured surfaces to increase friction, the thumb wheel 40 can be easily rotated by the user.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A vehicle-mounted air vent structure based on thumb wheel control, characterized in that, include: An air outlet housing (10) is provided with an air outlet channel (101). A first shaft groove (11) and a second shaft groove are respectively provided on both sides of the air outlet housing (10) in the direction of air outlet channel (101). Multiple blades (20), each blade (20) has a first end connected to a crank structure (21) and a second end connected to a positioning shaft (201), the crank structure (21) being connected to the first shaft groove (11) and the positioning shaft (201) being connected to the second shaft groove; A connecting rod structure (30) is connected to a crank structure (21) on one side of multiple blades (20), and the connecting rod structure (30) can move in a direction perpendicular to the outlet plane of the air outlet channel (101) so that the multiple blades (20) rotate synchronously and change the direction of airflow in the air outlet channel (101). A thumb wheel (40) is rotatably connected to the air outlet housing (10). The thumb wheel (40) has an integrally injection molded pin (43) formed on it, and there is a gap between the pin (43) and the body of the thumb wheel (40). The pin (43) is connected to the connecting rod structure (30) and is used to move the connecting rod structure (30) along the target direction. When the pin (43) moves the connecting rod structure (30), the impact stress is reduced by forming a micro-deformation at the gap.

2. The vehicle air vent structure based on thumb wheel control according to claim 1, characterized in that, The pin (43) and the thumb wheel (40) are fixedly connected by a connecting block (42), and the gap is provided around the connecting block (42).

3. The vehicle air vent structure based on thumb wheel control according to claim 2, characterized in that, The direction of force applied after the pin (43) comes into contact with the connecting rod structure (30) is defined as the first direction, and the gap is at least distributed in the first direction.

4. The vehicle air vent structure based on thumb wheel control according to claim 2, characterized in that, The gap is configured as a U-shape surrounding the outside of the connecting block (42).

5. The vehicle air vent structure based on thumb wheel control according to claim 1, characterized in that, The outer wall of the air outlet housing (10) is provided with a hollow shaft (12), and the thumb wheel (40) is provided with a shaft hole (41). The shaft hole (41) is fitted onto the outer wall of the hollow shaft (12), so that the thumb wheel (40) rotates around the axis of the hollow shaft (12).

6. The vehicle air vent structure based on thumb wheel control according to claim 1, characterized in that, The connecting rod structure (30) is configured in an L-shape, including a first rod portion (31) and a second rod portion (32), with a plurality of crank structures (21) connected to the first rod portion (31) and the pin (43) connected to the second rod portion (32).

7. The vehicle air vent structure based on thumb wheel control according to claim 6, characterized in that, The outer wall of the air outlet housing (10) is provided with a guide structure (13) that contacts the first rod (31) to restrict the movement direction of the connecting rod structure (30).

8. The vehicle air vent structure based on thumb wheel control according to claim 6, characterized in that, The surface of the second rod (32) is provided with a limiting groove (33), the pin (43) extends into the limiting groove (33), and when the thumb wheel (40) is rotated by the user, the pin (43) abuts against the inner wall of the limiting groove (33) to make the connecting rod structure (30) move in the target direction.

9. The vehicle air vent structure based on thumb wheel control according to claim 1, characterized in that, The crank structure (21) has a first shaft (211) at one end and a second shaft (212) at the other end. The first shaft (211) is fixedly connected to the blade (20), and the second shaft (212) is rotatably connected to the connecting rod structure (30).

10. The vehicle air vent structure based on thumb wheel control according to claim 1, characterized in that, The outer partial surface of the thumb wheel (40) is also provided with a cover (44), and the surface of the cover (44) is provided with a textured surface.

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