Bidirectional fan and vehicle

Abstract

The bidirectional fan comprises a shell and a partition plate, the partition plate divides an air suction channel and an air blowing channel in an inner cavity of the shell, and ventilation baffles are arranged at air channel openings of the air suction channel and the air blowing channel so that the air suction channel can be divided into an inner air suction opening and an outer air suction opening. The air blowing channel is divided into an inner air blowing opening and an outer air blowing opening. The inner air suction opening and the inner air blowing opening can communicate with an external ventilation system, and the outer air suction opening and the outer air blowing opening communicate with the external environment. When the bidirectional fan is applied to the vehicle seat, an air suction mode and an air blowing mode can be achieved through the bidirectional fan, and therefore air suction or air blowing of the seat and the periphery of the seat is achieved. The invention further provides a vehicle which comprises a seat, a ventilation system and the two-way fan, the two-way fan is arranged in the seat, and the inner air suction opening and the inner air blowing opening are both communicated with the ventilation system.

Description

Technical Field

[0001] This invention relates to the field of automobiles and their parts, and in particular to a bidirectional fan and vehicle. Background Technology

[0002] As living standards improve, cars have gradually become a common mode of transportation, and people are increasingly demanding higher levels of comfort in their vehicles.

[0003] Among these factors, the comfort of car seats has the most critical impact on usability, and more and more manufacturers are adopting seats with ventilation functions. Different drivers have different preferences for ventilation systems; some prefer suction systems, while others prefer blowing systems. Existing fans can only simply blow or suck air, unable to switch between blowing and sucking, which affects seat adaptability and reduces the driving and riding experience. Summary of the Invention

[0004] The purpose of this invention is to provide a two-way fan and vehicle to solve the problems existing in the above-mentioned related technologies, so that the fan can realize two working modes of blowing and sucking air, improve the adaptability of the seat, and enhance the driving experience.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a bidirectional fan, comprising:

[0007] A housing, wherein a fan blade is provided inside the housing, and the fan blade is connected to a first driver, which can drive the fan blade to rotate;

[0008] A partition is disposed within the housing, dividing the inner cavity of the housing into an intake duct and a blower duct. The intake duct is connected to the air inlet of the fan blade, and the blower duct is connected to the air outlet of the fan blade. Ventilation baffles are provided at the openings of both the intake and blower ducts to separate the intake duct into an inner intake port and an outer intake port, and the blower duct into an inner blower port and an outer blower port. Both the inner intake port and the inner blower port can be connected to an external ventilation system, and both the outer intake port and the outer blower port are connected to the external environment. The ventilation baffles are movably connected to the housing to allow switching between connection to the external ventilation system and connection to the external environment for both the intake and blower ducts.

[0009] Preferably, one end of the ventilation baffle is hinged to the housing, and the other end of the ventilation baffle extends into the air intake duct and the air blowing duct;

[0010] The ventilation baffle located in the air intake duct rotates relative to the housing and can contact the housing and the partition plate to block one of the inner air intake and the outer air intake; the ventilation baffle located in the air blowing duct rotates relative to the housing and can contact the housing and the partition plate to block one of the inner air blowing and the outer air blowing.

[0011] Preferably, the bidirectional fan further includes a second driver, which is fixed to the housing and drives the two ventilation baffles to rotate via a linkage mechanism.

[0012] Preferably, the linkage mechanism includes a sliding rod, a connecting pin, and a driving link. The second driver is throttle-connected to the sliding rod and can drive the sliding rod to slide back and forth. The connecting pin passes through the housing and is connected to the ventilation baffle. The connecting pin corresponds one-to-one with the ventilation baffle. The two ends of the driving link are rotatably connected to the two connecting pins respectively. The sliding rod is connected to a sliding shaft, and the driving link is connected to a sliding sleeve adapted to the sliding shaft. The sliding shaft is slidably disposed in the sliding sleeve. The reciprocating sliding direction of the sliding shaft is perpendicular to the sliding direction of the sliding rod. The driving link is disposed parallel to the sliding rod.

[0013] Preferably, the housing has a groove adapted to the sliding rod, and the sliding rod is slidably disposed in the groove;

[0014] The housing also has a limiting groove adapted to the connecting pin, and the connecting pin is slidably disposed in the limiting groove, with each limiting groove corresponding to a connecting pin.

[0015] Preferably, the second driver is connected to the sliding rod via a transmission mechanism, the transmission mechanism including a gear assembly, a transmission wheel, and an eccentric pin. The output end of the second driver is connected to the gear assembly, the gear assembly can drive the transmission wheel to rotate, the eccentric pin is connected to the transmission wheel and their axes do not coincide, the sliding rod has a sliding frame adapted to the eccentric pin, the eccentric pin is slidably disposed in the sliding frame, and the relative sliding direction of the eccentric pin and the sliding frame is perpendicular to the reciprocating sliding direction of the sliding rod.

[0016] Preferably, both ventilation baffles are connected to a third driver, which is fixed to the housing and can drive the ventilation baffles to rotate; the third driver is a stepper motor.

[0017] Preferably, the ventilation baffle is connected to a sealing strip, which is made of an elastic material to seal the gaps between the ventilation baffle and the housing and the partition.

[0018] Preferably, the housing is a split structure, comprising an upper shell and a lower shell, the upper shell and the lower shell being detachably connected, and the fan blades and the partition plate being located within the cavity formed by the upper shell and the lower shell.

[0019] The present invention also provides a vehicle, including a ventilation system and a seat, and further including the above-mentioned bidirectional fan, the bidirectional fan being disposed inside the seat, and the internal air intake and the internal air outlet being connected to the ventilation system.

[0020] The present invention achieves the following technical effects compared to related technologies: The bidirectional fan of the present invention includes a housing and a partition plate. Fan blades are disposed within the housing, and the fan blades are connected to a first driver, which drives the fan blades to rotate. The partition plate is disposed within the housing and divides the housing cavity into an intake duct and a blower duct. The intake duct is connected to the air inlet of the fan blades, and the blower duct is connected to the air outlet of the fan blades. Ventilation baffles are provided at the duct openings of both the intake and blower ducts to separate the intake duct into an inner intake port and an outer intake port, and the blower duct into an inner blower port and an outer blower port. Both the inner intake port and the inner blower port can be connected to an external ventilation system, and both the outer intake port and the outer blower port are connected to the external environment. The ventilation baffles are movably connected to the housing to allow switching between connection to the external ventilation system and connection to the external environment for both the intake and blower ducts.

[0021] The bidirectional fan of this invention utilizes a partition to separate an intake duct and a blowing duct within the housing. Ventilation baffles are installed at the openings of both the intake and blowing ducts to further construct an inner intake port and an outer intake port, as well as an inner and outer blowing port. Both the inner and outer intake ports can be connected to an external ventilation system, while both the outer intake and outer blowing ports are connected to the external environment. When the bidirectional fan is applied to a vehicle seat, it can achieve both intake and blowing modes. In intake mode, air is drawn in through the inner intake port and flows into the fan blade inlet. After being accelerated by the fan blades, it is discharged from the fan blade outlet and flows towards the outer blowing port, thus achieving seat intake. In blowing mode, air is drawn in through the outer intake port and flows into the fan blade inlet. After being accelerated by the fan blades, it is discharged from the fan blade outlet and flows towards the inner blowing port, thus achieving seat blowing.

[0022] The present invention also provides a vehicle including a seat and the aforementioned bidirectional fan, wherein the bidirectional fan is disposed inside the seat to realize the seat’s air intake and air blowing, thereby improving the seat’s adaptability and enhancing the driving experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the bidirectional fan disclosed in the embodiments of the present invention;

[0025] Figure 2 This is a schematic diagram of the air duct of the bidirectional fan disclosed in the embodiments of the present invention;

[0026] Figure 3 This is a schematic diagram of the air blowing mode of the bidirectional fan disclosed in Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the air intake mode of the bidirectional fan disclosed in Embodiment 1 of the present invention;

[0028] Figure 5 This is a partial structural schematic diagram of the bidirectional fan disclosed in Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the bidirectional fan disclosed in Embodiment 2 of the present invention;

[0030] Figure 7 This is a schematic diagram of the air blowing mode of the bidirectional fan disclosed in Embodiment 2 of the present invention;

[0031] Figure 8 This is a schematic diagram of the air intake mode of the bidirectional fan disclosed in Embodiment 2 of the present invention;

[0032] Figure 9 This is a schematic diagram of the housing structure of the bidirectional fan disclosed in an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the upper casing of the bidirectional fan disclosed in an embodiment of the present invention.

[0034] In the diagram: 100, bidirectional fan;

[0035] 1. Housing; 2. Divider plate; 3. Fan blade; 4. Suction duct; 5. Air blowing duct; 6. Air inlet; 7. Air outlet; 8. Ventilation baffle; 9. Inner air inlet; 10. Outer air inlet; 11. Inner air blowing outlet; 12. Outer air blowing outlet; 13. Second actuator; 14. Sliding rod; 15. Connecting pin; 16. Drive linkage; 17. Sliding shaft; 18. Sliding sleeve; 19. Sliding groove; 20. Limiting groove; 21. Gear assembly; 22. Transmission wheel; 23. Eccentric pin; 24. Sliding frame; 25. Upper housing; 26. Third actuator. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The purpose of this invention is to provide a two-way fan and vehicle to solve the problems existing in the above-mentioned related technologies, so that the fan can realize two working modes of blowing and sucking air, improve the adaptability of the seat, and enhance the driving experience.

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] This embodiment provides a bidirectional fan 100, including a housing 1 and a partition 2. A fan blade 3 is disposed inside the housing 1, and the fan blade 3 is connected to a first driver that can drive the fan blade 3 to rotate. The partition 2 is disposed inside the housing 1 and divides the inner cavity of the housing 1 into an intake duct 4 and a blower duct 5. The intake duct 4 is connected to the air inlet 6 of the fan blade 3, and the blower duct 5 is connected to the air outlet 7 of the fan blade 3. Ventilation baffles 8 are provided at the openings of both the intake duct 4 and the blower duct 5 to reduce the airflow in the intake duct. 4 separates the inner air intake 9 and the outer air intake 10, and separates the air blowing duct 5 into the inner air blowing duct 11 and the outer air blowing duct 12. Both the inner air intake 9 and the inner air blowing duct 11 can be connected to the external ventilation system, and both the outer air intake duct 10 and the outer air blowing duct 12 can be connected to the external environment. The ventilation baffle 8 is movably connected to the housing 1 to realize the switching between the air intake duct 4 being connected to the external ventilation system and the external environment, and to realize the switching between the air blowing duct 5 being connected to the external ventilation system and the external environment.

[0041] The bidirectional fan 100 of the present invention uses a partition 2 to separate an air intake duct 4 and an air blowing duct 5 within the housing 1. Ventilation baffles 8 are provided at the openings of both the air intake duct 4 and the air blowing duct 5 to further construct an inner air intake 9 and an outer air intake 10, as well as an inner air blowing duct 11 and an outer air blowing duct 12. Both the inner air intake 9 and the inner air blowing duct 11 can be connected to an external ventilation system, while both the outer air intake 10 and the outer air blowing duct 12 are connected to the external environment. When the bidirectional fan 100 is applied to a vehicle seat, it can achieve both an air intake mode and an air blowing mode. In air intake mode, air is drawn in through the inner air intake duct 9 and flows into the air inlet 6 of the fan blade 3. After being accelerated by the fan blade 3, air is discharged from the air outlet 7 of the fan blade 3 and flows towards the outer air blowing duct 12, thereby achieving air intake for the seat. In the blowing mode, air is drawn in through the external air intake 10 and flows into the air inlet 6 of the fan blade 3. After being accelerated by the fan blade 3, it is discharged from the air outlet 7 of the fan blade 3 and flows into the internal air outlet 11, thereby realizing seat blowing.

[0042] In this specific embodiment, one end of the ventilation baffle 8 is hinged to the housing 1, and the other end of the ventilation baffle 8 extends into the air intake duct 4 and the air blowing duct 5. The ventilation baffle 8 rotates relative to the housing 1, thereby allowing the bidirectional fan 100 to switch between different operating modes. The ventilation baffle 8 located in the air intake duct 4 rotates relative to the housing 1 and can contact the housing 1 and the partition 2 to block one of the inner air intake port 9 and the outer air intake port 10. When the ventilation baffle 8 blocks the inner air intake port 9, the outer air intake port 10 operates; conversely, when the ventilation baffle 8 blocks the outer air intake port 10, the inner air intake port 9 operates. The ventilation baffle 8 located in the air blowing duct 5 rotates relative to the housing 1 and can contact the housing 1 and the partition 2 to block one of the inner air blowing port 11 and the outer air blowing port 12. When the ventilation baffle 8 located in the air blowing duct 5 blocks the inner air blowing port 11, the outer air blowing port 12 operates, and vice versa.

[0043] In other possible embodiments of the present invention, the ventilation baffle 8 may be connected to the housing 1 in other ways, such as by sliding, with the ventilation baffle 8 slidably disposed inside the housing 1 to achieve the purpose of switching between different working modes.

[0044] The bidirectional fan 100 of the present invention also includes a second driver 13, please refer to... Figures 1-5 The second actuator 13 is fixed to the housing 1. The second actuator 13 drives the two ventilation baffles 8 to rotate using a linkage mechanism. The linkage mechanism transmits power reliably, has a compact structure, helps reduce vibration, and improves the rotation reliability of the ventilation baffles 8. The second actuator 13 drives the two ventilation baffles 8 to rotate simultaneously, which is easy to maintain and helps save costs.

[0045] Specifically, the linkage mechanism includes a sliding rod 14, a connecting pin 15, and a drive link 16. The second driver 13 is connected to the sliding rod 14 and can drive the sliding rod 14 to slide back and forth. The connecting pin 15 passes through the housing 1 and is connected to the ventilation baffle 8. The connecting pin 15 and the ventilation baffle 8 correspond one-to-one. The two ends of the drive link 16 are rotatably connected to the two connecting pins 15 respectively. The sliding rod 14 is connected to a sliding shaft 17. The drive link 16 is connected to a sliding sleeve 18 that is adapted to the sliding shaft 17. The sliding shaft 17 is slidably disposed in the sliding sleeve 18. The reciprocating sliding direction of the sliding shaft 17 is perpendicular to the sliding direction of the sliding rod 14. The drive link 16 is disposed parallel to the sliding rod 14. The second actuator 13 drives the sliding rod 14 to slide back and forth. The sliding rod 14 drives the drive linkage 16 to move left and right. The drive linkage 16 drives the ventilation baffle 8 to rotate via the connecting pin 15. The connecting pin 15 is located between the hinged end and the free end of the ventilation baffle 8. The movement trajectory of the connecting pin 15 is arc-shaped. When the drive linkage 16 drives the connecting pin 15 to move, the distance between it and the sliding rod 14 changes. The drive linkage 16 is connected to a sliding sleeve 18. Correspondingly, the sliding rod 14 is connected to a sliding shaft 17. The sliding sleeve 18 is slidably disposed outside the sliding shaft 17. While the sliding rod 14 drives the drive linkage 16 to reciprocate, it adapts to the relative displacement of the two, ensuring smooth power transmission. This invention utilizes the drive linkage 16 to drive the two ventilation baffles 8 in a coordinated manner.

[0046] Meanwhile, the housing 1 has a groove 19 adapted to the sliding rod 14, and the sliding rod 14 is slidably disposed in the groove 19, improving the accuracy of the reciprocating motion of the sliding rod 14. The housing 1 also has a limiting groove 20 adapted to the connecting pin 15, and the connecting pin 15 is slidably disposed in the limiting groove 20. The limiting groove 20 corresponds one-to-one with the connecting pin 15, and the shape of the limiting groove 20 is an arc that matches the movement trajectory of the connecting pin 15, improving the accuracy of the reciprocating motion of the connecting pin 15, thereby improving the movement reliability of the ventilation baffle 8.

[0047] In this specific embodiment, the second driver 13 is connected to the sliding rod 14 via a transmission mechanism. The transmission mechanism includes a gear assembly 21, a transmission wheel 22, and an eccentric pin 23. The output end of the second driver 13 is connected to the gear assembly 21, which drives the transmission wheel 22 to rotate, thus achieving deceleration. The eccentric pin 23 is connected to the transmission wheel 22, but their axes do not coincide. The sliding rod 14 has a sliding frame 24 adapted to the eccentric pin 23. The eccentric pin 23 is slidably disposed within the sliding frame 24, and the relative sliding direction between the eccentric pin 23 and the sliding frame 24 is perpendicular to the reciprocating sliding direction of the sliding rod 14. The second driver 13 drives the transmission wheel 22 to rotate via the gear assembly 21. The transmission wheel 22 is eccentrically connected to the eccentric pin 23. During the rotation of the eccentric pin 23 by the transmission wheel 22, the eccentric pin 23 reciprocates within the sliding frame 24, simultaneously driving the sliding frame 24 and the sliding rod 14 to reciprocate, thereby achieving power transmission. The gear assembly 21 is used to transmit power, resulting in high transmission efficiency and a compact and reliable structure. In other specific embodiments of the present invention, other transmission structures, such as belt drives or sprocket drives, can also be used to meet different working conditions.

[0048] More specifically, the ventilation baffle 8 is connected to a sealing strip made of an elastic material, such as sealing sponge, to seal the gaps between the ventilation baffle 8 and the housing 1 and the partition 2, thereby improving the sealing performance of the ventilation baffle 8 and further enhancing the structural reliability of the bidirectional fan 100. In practical applications, the sealing strip can be arranged around the contour of the ventilation baffle 8 to enhance the sealing performance. The sealing strip is detachably connected to the ventilation baffle 8, facilitating disassembly and replacement without requiring replacement of the ventilation baffle 8, thus saving on operating costs.

[0049] In this specific embodiment, the housing 1 is a split structure, including an upper housing 25 and a lower housing. The upper housing 25 and the lower housing are detachably connected. The fan blade 3 and the partition plate 2 are located in the cavity formed by the upper housing 25 and the lower housing. The upper housing 25 and the lower housing can be connected by snap-fit, bolt or other means, which facilitates the disassembly and maintenance of the bidirectional fan 100.

[0050] Example 2

[0051] This embodiment provides a bidirectional fan 100. In this embodiment, both ventilation baffles 8 are connected to a third driver 26. The third driver 26 is fixed to the housing 1 and can drive the ventilation baffles 8 to rotate. The two ventilation baffles 8 are driven to rotate by the third driver 26, which helps to reduce the transmission structure and save space occupied by the bidirectional fan 100. In practical applications, the third driver 26 can be a stepper motor.

[0052] The other structures of the bidirectional fan 100 in this embodiment are the same as those of the bidirectional fan 100 in Embodiment 1, and will not be described again here.

[0053] Example 3

[0054] The present invention also provides a vehicle, including a ventilation system and a seat, and further includes a bidirectional fan 100 of Embodiment 1. The bidirectional fan 100 is disposed inside the seat, and the internal air intake 9 and the internal air blowing 11 are both connected to the ventilation system, thereby realizing air intake and air blowing of the seat, improving the adaptability of the seat and enhancing the driving experience.

[0055] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A bidirectional fan, characterized in that, include: A housing, wherein a fan blade is provided inside the housing, and the fan blade is connected to a first driver, which can drive the fan blade to rotate; A partition is disposed within the housing, dividing the inner cavity of the housing into an intake duct and a blower duct. The intake duct is connected to the air inlet of the fan blade, and the blower duct is connected to the air outlet of the fan blade. Ventilation baffles are provided at the openings of both the intake and blower ducts to separate the intake duct into an inner intake port and an outer intake port, and the blower duct into an inner blower port and an outer blower port. Both the inner intake port and the inner blower port can be connected to an external ventilation system, and both the outer intake port and the outer blower port are connected to the external environment. The ventilation baffles are movably connected to the housing to allow switching between connection to the external ventilation system and connection to the external environment for both the intake and blower ducts.

2. The bidirectional fan according to claim 1, characterized in that: One end of the ventilation baffle is hinged to the housing, and the other end of the ventilation baffle extends into the air intake duct and the air blowing duct. The ventilation baffle located in the air intake duct rotates relative to the housing and can contact the housing and the partition plate to block one of the inner air intake and the outer air intake; the ventilation baffle located in the air blowing duct rotates relative to the housing and can contact the housing and the partition plate to block one of the inner air blowing and the outer air blowing.

3. The bidirectional fan according to claim 2, characterized in that: It also includes a second driver, which is fixed to the housing and drives the two ventilation baffles to rotate via a linkage mechanism.

4. The bidirectional fan according to claim 3, characterized in that: The linkage mechanism includes a sliding rod, a connecting pin, and a drive link. The second driver is throttle-connected to the sliding rod and can drive the sliding rod to slide back and forth. The connecting pin passes through the housing and is connected to the ventilation baffle. The connecting pin corresponds one-to-one with the ventilation baffle. The two ends of the drive link are rotatably connected to the two connecting pins respectively. The sliding rod is connected to a sliding shaft, and the drive link is connected to a sliding sleeve adapted to the sliding shaft. The sliding shaft is slidably disposed in the sliding sleeve. The reciprocating sliding direction of the sliding shaft is perpendicular to the sliding direction of the sliding rod. The drive link is disposed parallel to the sliding rod.

5. The bidirectional fan according to claim 4, characterized in that: The housing has a groove that matches the sliding rod, and the sliding rod is slidably disposed in the groove; The housing also has a limiting groove adapted to the connecting pin, and the connecting pin is slidably disposed in the limiting groove, with each limiting groove corresponding to a connecting pin.

6. The bidirectional fan according to claim 4, characterized in that: The second driver is connected to the sliding rod via a transmission mechanism, which includes a gear assembly, a transmission wheel, and an eccentric pin. The output end of the second driver is connected to the gear assembly, which can drive the transmission wheel to rotate. The eccentric pin is connected to the transmission wheel, and their axes do not coincide. The sliding rod has a sliding frame adapted to the eccentric pin. The eccentric pin is slidably disposed within the sliding frame, and the relative sliding direction of the eccentric pin and the sliding frame is perpendicular to the reciprocating sliding direction of the sliding rod.

7. The bidirectional fan according to claim 2, characterized in that: Both ventilation baffles are connected to a third driver, which is fixed to the housing and can drive the ventilation baffle to rotate; the third driver is a stepper motor.

8. The bidirectional fan according to claim 3 or 7, characterized in that: The ventilation baffle is connected to a sealing strip made of elastic material to seal the gaps between the ventilation baffle and the housing and the partition.

9. The bidirectional fan according to claim 1, characterized in that: The housing is a split structure, comprising an upper shell and a lower shell, which are detachably connected. The fan blades and the partition plate are located within the cavity formed by the upper shell and the lower shell.

10. A vehicle comprising a ventilation system and a seat, characterized in that: It also includes the bidirectional fan as described in any one of claims 1-9, wherein the bidirectional fan is disposed inside the seat, and both the internal air intake and the internal air outlet are connected to the ventilation system.

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