Improved air outlet blade string assembly and air outlet device

Abstract

The utility model discloses a blade string assembly. The blade string assembly comprises a plurality of blades which are sequentially arranged along the same axis. The multiple blades are relatively and fixedly arranged, under the condition that one blade obtains the minimum projection area in the direction perpendicular to the axis, the blade string assembly is rotated by an angle alpha around the axis, so that the adjacent blade obtains the minimum projection area in the direction perpendicular to the axis, alpha is larger than or equal to 0 degree and smaller than 90 degrees, and alpha is larger than or equal to 0 degree and smaller than 90 degrees. And the angle alpha is not zero for at least one pair of adjacent blades. The utility model further discloses an air outlet device objectively provided with the blade string assembly. The blade string assembly has the advantages of being simple in structure and low in cost, and by rotating the blade string assembly, the spirally-arranged blade strings can be achieved at low cost so as to independently provide natural air outlet.

Description

Technical Field

[0001] The utility model relates to an air outlet device for a car, in particular to an improved air outlet blade assembly and the air outlet device. Background Art

[0002] In many cases, conventional air vent assemblies lack the desired air flow options to ensure driver and passenger comfort while riding within the cabin space of a vehicle.

[0003] An air vent assembly disclosed in China Utility Model Patent Application Publication No. CN110049889A includes a cover member having an inlet for allowing air flow to enter the cover member. The cover member also has a vent extending from the inlet for allowing air flow to leave the cover member. The vent includes a first vent portion and a second vent portion, the second vent portion being located adjacent to the first vent portion. The first vent portion has a first set of guide vanes disposed therein. The second vent portion has a second set of guide vanes disposed therein. Each of the vanes is spaced apart from each other and pivotally coupled to a pair of opposite walls of the cover member. The first set of guide vanes and the second set of guide vanes can be independently moved relative to each other using an actuating mechanism, the actuating mechanism being used to provide a variety of guide positions, one of which includes a split guide position. The patent requires two sets of guide vanes to control the air outlet of the first vent portion and the second vent portion, respectively, which has the problems of complex structure and high cost.

[0004] Chinese patent application publication number CN1987269A discloses a wind direction changing device, which includes an air supply unit, a wind direction changing unit for changing the wind from the air supply unit, and a rotating shaft supporting the wind direction changing unit in a rotatable manner, wherein the wind direction changing unit is penetrated by the rotating shaft and has a plurality of wind direction changing plates installed in a state inclined relative to the rotating shaft, and the plurality of wind direction changing plates are arranged to have a predetermined position on the rotating shaft as a dividing point, and the inclination direction relative to the rotating shaft is opposite. The patent has a viewing angle, which is a plane perpendicular to the plane where all the blades are located, that is, all the blades are linear under this viewing angle.

[0005] In addition, in the existing variable arrangement blade string air outlet, if the spirally arranged blades are expected to provide fast bidirectional moving wave peaks, the mechanism for switching the working conditions is relatively complex and costly. When the user only wants to obtain the natural wind function of the spiral arrangement, the design of the switching mechanism and the blade unit becomes redundant and wasteful. Utility Model Content

[0006] One of the technical problems that the utility model needs to solve is to provide a blade string assembly with a simple structure to address the problems of complex structure and high cost of the blade string assembly in the existing air outlet device and the problem of the relatively complex mechanism of the existing variable arrangement blade string air outlet switching working condition.

[0007] The second technical problem to be solved by the present invention is to provide an air outlet device having the above-mentioned blade string assembly.

[0008] In order to achieve the above-mentioned purpose of the utility model, the first aspect of the utility model is a blade string assembly, comprising a plurality of blades arranged in sequence along the same axis; characterized in that the plurality of blades are relatively fixedly arranged and constructed as follows: when one of the blades obtains the minimum projected area in the direction perpendicular to the axis, the blade string assembly is rotated around the axis by an angle α, so that the blade adjacent to it obtains the minimum projected area in the direction perpendicular to the axis, wherein 0°≤α<90°, and for at least one pair of adjacent blades, the angle α is not zero.

[0009] In a preferred embodiment of the present invention, the shape of the blade is a plane, a cambered surface, a curved surface, or a combination of any two or more thereof.

[0010] In a preferred embodiment of the present invention, the plurality of blades in the blade string assembly are assembled at least two by two to form the blade string assembly.

[0011] In a preferred embodiment of the present invention, the blade string assembly is integrally formed.

[0012] In a preferred embodiment of the present invention, it further comprises: a shaft component, and the plurality of blades are fixedly arranged on the shaft component along the axial direction of the shaft component.

[0013] In a preferred embodiment of the present invention, the shaft component is a shaft, and the plurality of blades are snap-fitted onto the shaft.

[0014] In a preferred embodiment of the present invention, the shaft is a tubular shaft or a solid shaft.

[0015] In a preferred embodiment of the present utility model, the tubular shaft is an axially spliced ​​structure.

[0016] In a preferred embodiment of the utility model, a hollow shaft is provided on each blade, and the hollow shafts on adjacent blades are connected to each other to form the shaft component.

[0017] In a preferred embodiment of the utility model, the hollow shafts on adjacent blades are connected in a concave-convex structure interlocking manner.

[0018] In a preferred embodiment of the utility model, it further comprises: a driving unit, wherein the driving unit drives the blade string assembly to rotate according to a set air outlet mode.

[0019] The air outlet device of the second aspect of the utility model comprises the blade string assembly mentioned above.

[0020] Since the utility model adopts the above technical solution, the blade string assembly of the utility model has the advantages of simple structure and low cost. By rotating the blade string assembly and cooperating with the external wind separation block and the internal wind separation block, natural wind outlet with bidirectional movement of air flow wave crests can be achieved at low cost, especially natural wind outlet with a chord function waveform of the wave crest brought by the spirally arranged blade string. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the appearance of a vehicle equipped with the air outlet device of the utility model.

[0022] Figure 2 The figure is a schematic diagram of the interior of a vehicle equipped with the air outlet device of the utility model.

[0023] Figure 3 It is a schematic diagram of the appearance of the air outlet device of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 1 of the utility model in an air outlet state.

[0025] Figure 5 This is a schematic diagram of the blade of Example 1 of the utility model from a first perspective.

[0026] Figure 6 This is a schematic diagram of the blade of Example 1 of the utility model from a second viewing angle.

[0027] Figure 7 This is a schematic diagram of the blade of Example 1 of the utility model from a third viewing angle.

[0028] Figure 8 It is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 2 of the utility model in an air outlet state.

[0029] Fig. 9 This is a schematic diagram of the blade of Example 2 of the utility model from the first perspective.

[0030] Fig.10 This is a schematic diagram of the blade of Example 2 of the utility model from a second viewing angle.

[0031] Fig.11 This is a schematic diagram of the blade of Example 2 of the utility model from a third viewing angle.

[0032] Fig.12 It is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 3 of the utility model in an air outlet state.

[0033] Fig.13 This is a schematic diagram of the blade of Example 3 of the utility model from the first perspective.

[0034] Fig.14 This is a schematic diagram of the blade of Example 3 of the utility model from a second viewing angle.

[0035] Fig.15 This is a schematic diagram of the blade of Example 3 of the utility model from a third viewing angle.

[0036] Fig.16 It is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 4 of the utility model in an air outlet state.

[0037] Fig.17 This is a schematic diagram of the blade of Example 4 of the utility model from the first perspective.

[0038] Fig.18 This is a schematic diagram of the blade of Example 4 of the utility model from a second viewing angle.

[0039] Fig.19 This is a schematic diagram of the blade of Example 4 of the utility model from a third viewing angle.

[0040] Fig. 20 This is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 5 of the utility model in an air outlet state.

[0041] Fig.21 This is a schematic diagram of the blade of Example 5 of the utility model from a first perspective.

[0042] Fig. 22 This is a schematic diagram of the blade of Example 5 of the utility model from a second viewing angle.

[0043] Fig.23 This is a schematic diagram of the blade of Example 5 of the utility model from a third viewing angle.

[0044] Fig.24 This is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 6 of the utility model in an air outlet state.

[0045] Fig.25 This is a schematic diagram of the blade of Example 6 of the utility model from the first perspective.

[0046] Fig.26 This is a schematic diagram of the blade of Example 6 of the utility model from a second viewing angle.

[0047] Fig. 27This is a schematic diagram of the blade of Example 6 of the utility model from a third viewing angle.

[0048] Fig.28 This is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 7 of the utility model in an air outlet state.

[0049] Fig.29 This is a schematic diagram of the blade of Example 7 of the utility model from the first perspective.

[0050] Fig.30 This is a schematic diagram of the blade of Example 7 of the utility model from a second viewing angle.

[0051] Fig.31 This is a schematic diagram of the blade of Example 7 of the utility model from a third viewing angle.

[0052] Fig.32 This is a schematic diagram of the decomposition of the air outlet device of Example 8 of the utility model.

[0053] Fig.33 This is a simplified cross-sectional view of the air outlet device of Example 8 of the present utility model.

[0054] Fig.34 This is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 8 of the utility model in an air outlet state.

[0055] Fig.35 This is a schematic diagram of a blade structure of Example 8 of the utility model.

[0056] Fig.36 This is a schematic structural diagram of an axially spliced ​​tubular shaft according to Example 8 of the utility model.

[0057] Fig.37 It is a schematic diagram of the assembly between the blades and the tubular shaft of Example 8 of the utility model.

[0058] Fig.38 This is a structural schematic diagram of the blade string assembly used in the air outlet device of Example 9 of the utility model in an air outlet state.

[0059] Fig.39 This is a schematic diagram of the decomposition of the blade string assembly used in the air outlet device of Example 9 of the utility model.

[0060] Fig.40 This is a schematic diagram of the assembly of the hollow blade shaft in the blade string assembly used in the air outlet device of Example 9 of the utility model.

[0061] Fig.41 This is a schematic diagram of a blade structure of Example 9 of the utility model.

[0062] Fig.42A schematic diagram of a first air outlet mode of the air outlet device of the utility model.

[0063] Fig.43 A schematic diagram of a second air outlet mode of the air outlet device of the present invention.

[0064] Fig.44 A schematic diagram of a third air outlet mode of the air outlet device of the present invention.

[0065] Fig.45 A schematic diagram of a fourth air outlet mode of the air outlet device of the present invention.

[0066] Fig.46 A schematic diagram of a fifth air outlet mode of the air outlet device of the present invention.

[0067] Fig.47 A schematic diagram of a sixth air outlet mode of the air outlet device of the present invention.

[0068] Fig.48 A schematic diagram of a seventh air outlet mode of the air outlet device of the present invention. DETAILED DESCRIPTION

[0069] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0070] See also Figure 1 and Figure 2 The air outlet device A of the utility model is installed on the left and right sides of the driving seat, the co-pilot seat, the center pillar, the driving seat and the co-pilot seat and other internal positions of the vehicle.

[0071] See also Figure 3 The simple structure of the air outlet device A shown in the figure has an air inlet side 100 and an air outlet side 200, including: an upper shell 310, a lower shell 320, an outer air distribution block 330, and an inner air distribution block 340 (see Figures 42 to 48 ) and blade string assembly 350.

[0072] The upper shell 310 and the lower shell 320 are assembled together to form a shell of the air outlet device A with a simple structure. Of course, the shell can also be an integral structure or other structures well known to those skilled in the art.

[0073] The outer air dividing block 330, the inner air dividing block 340 and the blade string assembly 350 are all arranged between the upper shell 310 and the lower shell 320. The outer air dividing block 330 is close to the air outlet side 200, and the inner air dividing block 340 is close to the air inlet side 100. The outer air dividing block 330 is triangular, and the bottom of the triangle faces the air inlet side 100; the inner air dividing block 340 is flat. The outer air dividing block 330 and the inner air dividing block 340 divide the internal space of the shell into an upper air duct 361 and a lower air duct 362 (see Figures 42 to 48A knob 341 is also provided at one end of the inner air dividing block 340 (see Fig.32 ), of course, the rotation 341 can also be replaced by other manual mechanisms or electric mechanisms to drive the internal air distribution block 340 to rotate.

[0074] The blade string assembly 350 is located between the outer air dividing block 330 and the inner air dividing block 340 . The blade string assembly 350 is located at the rear side of the outer air dividing block 330 and the front side of the inner air dividing block 340 .

[0075] The above technologies are all prior arts in the art. The utility model is to improve the blade string assembly 350, which is as follows:

[0076] Example 1

[0077] See also Figures 4 to 7 The blade string assembly 350a in this embodiment is specifically composed of nine blade units 351a (of course, it is not limited to nine, and can be a plurality of other numbers), and the nine blade units 351a are arranged along the same blade axis B (see Figure 4 ) directions are relatively fixed.

[0078] All blade units 351a in the blade string assembly 350a are assembled in pairs to form the blade string assembly 350a, specifically:

[0079] Each blade unit 351a is composed of a short hollow shaft component 351aa and a blade 351ab formed on the short hollow shaft component. An insertion shaft 351aaa is provided at one end of the short hollow shaft component 351aa, and an insertion hole 351aab is provided at the other end. A key 351aaaa is provided on the insertion shaft 351aa, and a key groove 351aaba is provided on the hole wall of the insertion hole 351aab. The insertion shaft 351aa on one blade unit 351a is inserted into the insertion hole 351aab of another blade unit 351a, and the key 351aaaa on the insertion shaft 351aa is inserted into the key groove 351aaba on the hole wall of the insertion hole 351aab, so that the nine blade units 351a are connected in a concave-convex structure to form a blade string assembly 350a.

[0080] When the nine blade units 351a obtain the minimum projection area P in the direction perpendicular to the blade axis B (see Figure 7 ), rotate the blade string assembly 350a by an angle α so that the adjacent blade unit 351a obtains a minimum projected area P in a direction perpendicular to the axis of the blade B, wherein 0°≤α<90° and is not zero or is not zero at the same time.

[0081] A knob 352a (the aforementioned driving mechanism) is inserted into the insertion hole 351aab of the blade string assembly 350a at one end, and a key (not shown in the figure) on the knob 352a is inserted into the key slot 351aaba on the hole wall of the insertion hole 351aab of the blade string assembly 350a, so that the knob 352a and the blade string assembly 350a at one end are connected in a concave-convex structure. Rotating the knob 352a can drive the blade string assembly 350a to rotate.

[0082] The blade 351ab in this embodiment is in the shape of a tubular surface.

[0083] Example 2

[0084] See also Figures 8 to 11 The difference between this embodiment and embodiment 1 is that the blade 351ab is a curved surface, and the rest is the same as embodiment 1.

[0085] Example 3

[0086] See also Figures 12 to 15 The difference between this embodiment and embodiment 1 is that the blade 351ab is an arc surface, and the rest is the same as embodiment 1.

[0087] Example 4

[0088] See also Figures 16 to 19 The difference between this embodiment and embodiment 1 is that the blade 351ab is in the shape of a flat pan, that is, the blade 351ab consists of a plane and a folded skirt, and the rest is the same as embodiment 1.

[0089] Example 5

[0090] See also Figures 20 to 23 The difference between this embodiment and embodiment 1 is that the blade 351ab is composed of two semicircular fan-shaped flat plates 351aba, and the rest is the same as embodiment 1.

[0091] Example 6

[0092] See also Figures 24 to 27 The difference between this embodiment and embodiment 1 is that the blade 351ab is composed of a semicircular flat plate 351abb and two 90° fan-shaped plates 351abc and 351abd. The angle between the semicircular flat plate 351abb and the 90° fan-shaped plate 351abc is 180°, and the angle between the two 90° fan-shaped plates 351abc and 351abd is any angle less than 180° but not equal to 0°.

[0093] Example 7

[0094] See also Figures 28 to 31The difference between this embodiment and the first embodiment is that the blade 351ab is composed of two semicircular curved plates 351abe, and the two semicircular curved plates 351abe are offset by one position in the direction parallel to the short hollow shaft part 351aa. The rest is the same as the first embodiment.

[0095] Example 8

[0096] See also Figures 32 to 37 The shaft member 353 has a tubular portion 353a, which is cut into two halves along the axial direction, namely a first half 353aa and a second half 353ab, which are assembled together. A plurality of first slots 353aaa are arranged in a spiral shape along the length direction of the first half 353aa, and a plurality of second slots 353aba are arranged in a spiral shape along the length direction of the second half 353ab.

[0097] A clamping platform 353aab is disposed on the inner surface of the first half portion 353aa adjacent to each first clamping groove 353aaa, and the distance L between the joint surfaces 353aaba of adjacent clamping platforms 353aab can be adjusted as needed.

[0098] The plane where the joint surface 353aaba of each card platform 353aab is located forms an angle α with the plane where the joint surface 353aaba of the adjacent card platform 353aab is located. After installation, the angle α corresponds to the orientation relationship between adjacent blade units 351b, which is the angle α in the aforementioned embodiment 1.

[0099] Each blade 351ab has an inner hole 351abf. A first buckle 351abfa and a second buckle 351abfb are disposed on the edge of the inner hole 351abf. A hook 351abfaa is disposed at the end of each first buckle 351abfa.

[0100] During assembly, the blades 351ab are sequentially sleeved on the tubular portion 353a, each first buckle 351abfa is inserted into the first slot 353aaa, and the hook 351abfaa on each first buckle 351abfa is hooked on the joint surface 353aaba of the clamping platform 353aab. The second buckle 351abfb is inserted into the second slot 353aba.

[0101] In this specific embodiment, the angle α between the viewing angle of the minimum projected area P obtained by the nine blade units 351ab in the direction perpendicular to the blade axis B and the viewing angle of the minimum projected area P obtained by the adjacent blade units 351a in the direction perpendicular to the blade axis B is 0°≤α<90° and is not 0 at the same time. That is, there is no viewing angle at which all blade units 351ab obtain the minimum projected area P in the direction perpendicular to the blade axis B, so that at least one pair of adjacent blade units 351ab can form an angle, and the natural wind outlet can be realized by rotating the blade string assembly 350a by operating the knob 352a, that is, the outlet has airflow peaks and troughs and the flow rate changes gently.

[0102] See also Fig.42 When the operating knob 352a rotates the blade string assembly 350a to the first angle, the four blade units 351ab on the left are tilted in one direction, and the four blade units 351ab on the left are tilted in the opposite direction, which will form an airflow a in the middle that blows straight, and the two airflows b on the left and the two airflows c on the right blow outward on both sides.

[0103] See also Fig.43 When the operating knob 352a rotates the blade string assembly 350a to the second angle, the eight blade units 351ab tilt in one direction, but at different angles. The rightmost blade unit 351ab tilts in the opposite direction, which will form two air flows d in the middle that are bent and blown to the right, and an air flow e on the left and an air flow f on the right that blow straight.

[0104] See also Fig.44 When the operating knob 352a rotates the blade string assembly 350a to the third angle, the four blade units 351ab on the left are tilted in one direction, and the four blade units 351ab on the right are tilted in the opposite direction, which will form an airflow g in the middle that blows straight, and an airflow h on the left and an airflow i on the right that blows out in a curved manner toward the middle.

[0105] See also Fig.45 When the operating knob 352a rotates the blade string assembly 350a to the fourth angle, the eight blade units 351ab tilt in one direction, but at different angles. The rightmost blade unit 351ab tilts in the opposite direction, which will form two middle airflows j that are bent and blow to the left, and an airflow k on the left and an airflow m on the right that blow straight.

[0106] See also Fig.46 , rotate the inner air dividing block 340 to the upward position, close the upper air duct 361, open the lower air duct 362, and the air is blown upward from the lower air duct 362.

[0107] See also Fig.47, rotate the inner air dividing block 340 to the middle position, open the upper air duct 361 and the lower air duct 362, and the air is blown out from the upper air duct 361 and the lower air duct 362 respectively.

[0108] See also Fig.48 , rotate the inner air dividing block 340 to the downward position, close the lower air duct 362, open the upper air duct 361, and the air is blown downward from the upper air duct 361.

[0109] Example 10

[0110] See also Figures 38 to 41 The difference between this embodiment and embodiment 1 is that the blade string assembly 350b has a different structure from the blade string assembly 350a of embodiment 1, and includes nine blade units 351b and a long axis 353b, and a knob 352b is provided at one end of the long axis 353b.

[0111] Each blade unit 351b has a columnar portion 351ba (of course, it can also be a cylindrical portion) and blades 351bb formed on the outer peripheral surface of the columnar portion 351ba, and a protrusion 351baa is provided on one end of the columnar portion 351ba, and a notch groove 351bab is provided on the other end. The width of the notch groove 351bab is adapted to the width of the protrusion 351baa, and the depth of the notch groove 351bab is also adapted to the depth of the protrusion 351baa, so that the protrusion 351baa is easily inserted into the notch groove 351bab. Of course, when the fixing strength of the protrusion 351baa and the notch groove 351bab is sufficient, the shaft component can be eliminated.

[0112] On the circumference of the columnar portion 351ba, the protrusion 351baa is deflected by an angle α relative to the notch groove 351bab, 0°≤angle α<90° (the deflection angle α of the protrusion 351baa and the notch groove 351bab on the radial section actually presents the orientation relationship between adjacent blade units 351b after installation, and α here is the aforementioned angle α). In this way, after the nine blade units 351b are assembled into the blade string assembly 350b, the angle α between the viewing angle of the nine blade units 351b to obtain the minimum projected area P in the direction perpendicular to the blade axis B and the viewing angle of the adjacent blade unit 351a to obtain the minimum projected area P in the direction perpendicular to the blade axis A (see Figure 7 ), where 0°≤α<90° and are not 0 at the same time.

[0113] In this way, at least one pair of adjacent blade units 351b can form an angle, and natural wind outlet can be achieved by rotating the blade string assembly 350b by operating the knob 353b, that is, the outlet has air flow peaks and troughs and gently changing flow speed.

[0114] When all blade units 351b are assembled, the inner holes of the columnar parts 351ba of all blade units 351b can be sleeved on the major axis 353b, and then the protrusions 351baa of adjacent blade units 351b can be inserted into the notch grooves 351bab.

[0115] The rest of this embodiment is the same as Embodiment 1.

Claims

1. A blade string assembly, comprising a plurality of blades arranged in sequence along the same axis; characterized in that: The multiple blades are relatively fixedly arranged and constructed such that: when one of the blades obtains the minimum projected area in the direction perpendicular to the axis, the blade string assembly is rotated by an angle α around the axis so that the blade adjacent to it obtains the minimum projected area in the direction perpendicular to the axis, wherein 0°≤α<90°, and for at least one pair of adjacent blades, the angle α is not zero.

2. A blade string assembly according to claim 1, characterized in that: The shape of the blade is a plane, a cambered surface, a curved surface, or a combination of any two or more thereof.

3. A blade string assembly according to claim 1 or 2, characterized in that: The plurality of blades in the blade string assembly are assembled at least in pairs to form the blade string assembly.

4. A blade string assembly according to claim 1 or 2, characterized in that: The blade string assembly is integrally formed.

5. A blade string assembly according to claim 1 or 2, characterized in that: Also includes: The plurality of blades are fixedly arranged on the shaft member along the axial direction of the shaft member.

6. A blade string assembly according to claim 5, characterized in that: The shaft component is a shaft, and the plurality of blades are buckled on the shaft in a buckle manner.

7. A blade string assembly according to claim 6, characterized in that: The shaft is a tubular shaft or a solid shaft.

8. A blade string assembly according to claim 7, characterized in that: The tubular shaft is in an axially spliced ​​structure.

9. A blade string assembly according to claim 5, characterized in that: The invention comprises a hollow shaft arranged on each blade, and the hollow shafts on adjacent blades are connected to each other to form the shaft component.

10. A blade string assembly according to claim 9, characterized in that: Also includes: The hollow shafts on adjacent blades are connected in a concave-convex structure.

11. A blade string assembly according to claim 1, characterized in that: Also includes: A driving unit drives the blade string assembly to rotate according to a set air outlet mode.

12. The air outlet device is characterized in that: A blade string assembly comprising any one of claims 1 to 11.

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