Air blowing and sucking device for vehicle type seat, vehicle type seat and automobile

Abstract

The invention discloses an air blowing and sucking device for a car type seat, the car type seat and a car, and relates to the technical field of car seat ventilation, the air blowing and sucking device comprises a fan, a fan cavity, a first air duct, a second air duct and a valve assembly, the fan is arranged in the fan cavity, and the fan cavity is provided with an air inlet structure and an air outlet structure; the first air duct communicates with the air inlet structure; an inner exhaust inlet and an outer exhaust inlet are formed in the first air duct; the second air duct is communicated with the air outlet structure; an inner air blowing opening and an outer air blowing opening are formed in the second air duct; the inner air suction opening and the inner air blowing opening are used for communicating with an automobile seat ventilation system, and the outer air suction opening and the outer air blowing opening are used for communicating with the outside atmosphere; the valve assembly is configured to close the outer air suction opening and the inner air blowing opening while opening the inner air suction opening and the outer air blowing opening and close the inner air suction opening and the outer air blowing opening while opening the outer air suction opening and the inner air blowing opening. A driver or a passenger is allowed to adjust air blowing or air suction according to personal preference, and a personalized seat environment is achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive seat ventilation technology, and in particular to a blower / suction device for a car seat, a car seat, and a car. Background Technology

[0002] As living standards improve, cars have gradually become a common mode of transportation, and people have increasingly higher demands for car comfort. Among these, 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 draw air, and cannot switch between blowing and drawing air. Summary of the Invention

[0003] The purpose of this invention is to provide a blower / suction device for a vehicle seat, a vehicle seat, and a car, in order to solve the problems existing in the prior art and meet the different preferences of drivers or passengers for ventilation systems.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a blower / suction device for vehicle seats, comprising:

[0006] A fan provides the power for airflow;

[0007] A fan cavity, wherein the fan is disposed within the fan cavity, and the fan cavity has an air inlet structure and an air outlet structure;

[0008] The first air duct is connected to the air inlet structure; the first air duct is provided with an internal air intake and an external air intake.

[0009] A second air duct, connected to the air outlet structure; the second air duct is provided with an inner air inlet and an outer air inlet; the inner air inlet and the inner air inlet are for connecting to the car seat ventilation system, and the outer air inlet and the outer air inlet are for connecting to the outside atmosphere; and

[0010] The valve assembly is configured to open the internal air intake and the external air outlet while simultaneously closing the external air intake and the internal air outlet, and to open the external air intake and the internal air outlet while simultaneously closing the internal air intake and the external air outlet.

[0011] Preferably, one end of the first air duct is connected to the air inlet structure, and the other end is the inner air intake port, with the outer air intake port located on the side of the first air duct; one end of the second air duct is connected to the air outlet structure, and the other end is the inner air blower port, with the outer air blower port located on the side of the second air duct; the valve assembly includes a driving device, a first baffle, and a second baffle; the first baffle is rotatably disposed within the first air duct; the driving device can drive the first baffle to rotate to block the outer air intake port and connect the inner air intake port to the air inlet structure, and the driving device can also drive the first baffle to rotate to block the inner air intake port and connect the outer air intake port to the air inlet structure; the second baffle is rotatably disposed within the second air duct; the driving device can drive the second baffle to rotate to block the outer air blower port and connect the inner air blower port to the air outlet structure, and the driving device can also drive the second baffle to rotate to block the inner air blower port and connect the outer air blower port to the air outlet structure.

[0012] Preferably, the driving device includes a motor, a driving gear, and a driven gear. One end of the first baffle is provided with a first rotating shaft, which is rotatably disposed within the first air duct. One end of the first rotating shaft is connected to the motor shaft of the motor, and the other end is fixedly provided with the driving gear. One end of the second baffle is provided with a second rotating shaft, which is rotatably disposed within the second air duct. One end of the second rotating shaft is fixedly provided with the driven gear, and the driven gear meshes with the driving gear for transmission.

[0013] Preferably, the fan cavity, the first air duct, and the second air duct are all formed within two interlocking outer shells, and a partition is provided between the first air duct and the second air duct.

[0014] Preferably, the fan is a centrifugal fan.

[0015] Preferably, a grille structure is fixedly provided at the external air intake and the external air outlet.

[0016] Preferably, both the second air duct and the first air duct are air ducts with rectangular cross-sections.

[0017] Preferably, the housing has a motor cavity located on one side of the first air duct, and the motor is disposed within the motor cavity.

[0018] The present invention also provides a vehicle seat, including the blowing and suction device for a vehicle seat as described above.

[0019] The present invention also provides an automobile comprising a plurality of vehicle seats as described above.

[0020] The present invention achieves the following technical effects compared to the prior art:

[0021] The blowing and suction device of the present invention allows the driver or passenger to adjust the blowing or suction according to personal preferences to achieve a personalized seating environment.

[0022] Furthermore, the fan adopts a centrifugal fan and optimizes the air duct design, which reduces noise and energy consumption while providing good ventilation.

[0023] Furthermore, a motor drives two baffles to deflect via a gear set, and the blowing and suction are changed by controlling the deflection of the baffles. The structure is simple, the operation is reliable, and the space occupied is small. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0025] Figure 1 This is a schematic diagram of the structure of the blowing and suction device for a vehicle seat provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the internal structure of the housing without valve components;

[0027] Figure 3 This is a partial structural diagram of the upper shell;

[0028] Figure 4 for Figure 1 A schematic diagram of the internal structure of the housing containing valve components;

[0029] Figure 5 for Figure 1 Schematic diagram of the valve assembly;

[0030] Figure 6 This is a structural diagram of the lower shell and valve assembly;

[0031] Figure 7 This is a structural diagram of the lower casing, fan, and valve assembly.

[0032] Figure 8 for Figure 1 Top view;

[0033] Figure 9 for Figure 8 Sectional view along line AA;

[0034] In the diagram: 2-Fan; 11-Internal air intake; 12-External air intake; 13-First air duct; 23-Second air duct; 21-Internal air outlet; 22-External air outlet; 31-Upper shell; 32-Lower shell; 33-Motor cavity; 34-Gear set cavity; 35-Air outlet structure; 36-Fan cavity; 37-Air inlet structure; 41-Motor; 42-First baffle; 43-Second baffle; 44-Driving gear; 45-Driven gear. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] This invention provides a blowing and suction device for vehicle seats, hereinafter referred to as the blowing and suction device, such as... Figures 1-9 As shown, the blowing and suction device includes: a fan 2, a fan cavity 36, a first air duct 13, a second air duct 23, and a valve assembly.

[0038] Fan 2 provides the power for airflow. Fan 2 is preferably a centrifugal fan, but other types of fans are also acceptable.

[0039] The fan 2 is disposed inside the fan cavity 36, which has an air inlet structure 37 and an air outlet structure 35.

[0040] The first air duct 13 is connected to the air intake structure 37; the first air duct 13 is provided with an internal air intake 11 and an external air intake 12.

[0041] The second air duct 23 is connected to the air outlet structure 35; the second air duct 23 is provided with an inner air outlet 21 and an outer air outlet 22; the inner air inlet 11 and the inner air outlet 21 are used to connect with the car seat ventilation system, and the outer air inlet 12 and the outer air outlet 22 are used to connect with the outside atmosphere.

[0042] The valve assembly is configured to open the inner air intake 11 and the outer air outlet 22 while closing the outer air intake 12 and the inner air outlet 21, and to open the outer air intake 12 and the inner air outlet 21 while closing the inner air intake 11 and the outer air outlet 22.

[0043] The blowing and suction device of the present invention allows the driver or passenger to adjust the blowing or suction according to personal preferences to achieve a personalized seating environment.

[0044] In use, passengers can change the on / off state of the inner air vent 21 and the outer air vent 22 with the air outlet structure 35, and change the on / off state of the inner air intake vent 11 and the outer air intake vent 12 with the air intake structure 37 through the valve assembly, thereby realizing the blowing or suction of air into the car seat ventilation system.

[0045] More specifically, when a passenger wants to activate the suction mode, the control valve assembly opens the inner air intake 11 and the outer air outlet 22 while simultaneously closing the outer air intake 12 and the inner air outlet 21. When a passenger wants to activate the blowing mode, the control valve assembly opens the outer air intake 12 and the inner air outlet 21 while simultaneously closing the inner air intake 11 and the outer air outlet 22.

[0046] Furthermore, in some examples known to the inventors of this application, the ventilation system of the seat is ventilated by rotating the fan forward and backward. However, this results in low ventilation efficiency. The inventors of this application have analyzed that this is because the fan blades are convex and concave and twisted. Simply changing the direction of rotation by rotating the fan blades forward and backward is not the optimal aerodynamics. Therefore, it will result in low ventilation efficiency. However, this application does not have the above-mentioned problems or defects.

[0047] In some embodiments, one end of the first air duct 13 is connected to the air inlet structure 37, and the other end is an internal air intake 11, with an external air intake 12 disposed on the side of the first air duct 13; one end of the second air duct 23 is connected to the air outlet structure 35, and the other end is an internal air outlet 21, with an external air outlet 22 disposed on the side of the second air duct 23; the valve assembly includes a driving device, a first baffle 42, and a second baffle 43. The first baffle 42 is rotatably disposed within the first air duct 13, and the driving device can drive the first baffle 42 to rotate to block the external air intake. The air vent 12 connects the inner air intake vent 11 to the air intake structure 37. The driving device can also drive the first baffle 42 to rotate to block the inner air intake vent 11 and connect the outer air intake vent 12 to the air intake structure 37. The second baffle 43 is rotatably disposed in the second air duct 23. The driving device can drive the second baffle 43 to rotate to block the outer air blowing vent 22 and connect the inner air blowing vent 21 to the air outlet structure 35. The driving device can also drive the second baffle 43 to rotate to block the inner air blowing vent 21 and connect the outer air blowing vent 22 to the air outlet structure 35.

[0048] In this embodiment, "blocking" can be understood as blocking relative to the fan cavity 36, that is, cutting off the connection with the fan cavity 36, so that certain structures are not connected to the fan cavity 36.

[0049] This embodiment achieves the blocking or opening of air vents within the same air duct by driving the first baffle 42 to rotate using a driving device. It can be understood that the first baffle 42 has two states: blocking the external air intake vent 12 or blocking the internal air intake vent 11. When the first baffle 42 is in the state of blocking the external air intake vent 12, the internal air intake vent 11 is in the open state; similarly, when the first baffle 42 is in the state of blocking the internal air intake vent 11, the external air intake vent 12 is in the open state. This embodiment achieves the goal of controlling the states of two air vents with only one valve (i.e., the first baffle 42 or the second baffle 43), saving on the number of components and the overall size of the machine.

[0050] In some embodiments, the driving device includes a motor 41, a driving gear 44, and a driven gear 45. The motor 41 is preferably a stepper motor 41. One end of the first baffle 42 is provided with a first rotating shaft, which is rotatably disposed in the first air duct 13. One end of the first rotating shaft is connected to the motor shaft of the motor 41, and the other end is fixedly provided with the driving gear 44. One end of the second baffle 43 is provided with a second rotating shaft, which is rotatably disposed in the second air duct 23. One end of the second rotating shaft is fixedly provided with the driven gear 45, and the driven gear 45 and the driving gear 44 mesh and drive each other.

[0051] In this embodiment, only one motor 41 is needed to control the two baffles, further reducing the number of components and the overall size of the machine.

[0052] In some embodiments, the fan cavity 36, the first air duct 13, and the second air duct 23 are all formed in two outer shells that are interlocked, namely the upper shell 31 and the lower shell 32, and a partition is provided between the first air duct 13 and the second air duct 23.

[0053] This embodiment facilitates the assembly of components, such as motor 41, gears, and baffles, into the housing. The housing has a gear set cavity 34, in which the driving gear 44 and the driven gear 45 are disposed.

[0054] In some embodiments, a shaft hole or shaft groove may be provided on the housing, and then the ends of the first and second rotating shafts are placed in the shaft hole or shaft groove to realize the rotational connection between the first and second rotating shafts and the housing.

[0055] In some embodiments, a grille structure is fixedly provided at the external air intake 12 and the external air outlet 22.

[0056] This embodiment can prevent large foreign objects from entering the device.

[0057] In some embodiments, both the second air duct 23 and the first air duct 13 are air ducts with rectangular cross-sections.

[0058] In some embodiments, a motor cavity 33 is constructed inside the housing, the motor cavity 33 is located on one side of the first air duct 13, and the motor 41 is disposed inside the motor cavity 33.

[0059] Specific implementation methods:

[0060] Suction mode: The control motor 41 rotates clockwise, causing the first baffle 42 and the drive gear 44 in the first air duct 13 to rotate clockwise, opening the inner air intake 11 and closing the outer air intake 12. The drive gear 44 drives the driven gear 45 and the second baffle 43 in the second air duct 23 to deflect counterclockwise, opening the outer air outlet 22 and closing the inner air outlet 21. Air is drawn in through the inner air intake 11 and flows into the fan blade cavity. After being accelerated by the fan blades, it is discharged from the fan blade outlet structure 35 and flows to the outer air outlet 22, thus achieving seat suction.

[0061] Air blowing mode: The control motor 41 rotates counterclockwise, driving the first baffle 42 and the drive gear 44 in the first air duct 13 to rotate counterclockwise, opening the external air intake 12 and closing the internal air intake 11. The drive gear 44 drives the driven gear 45 and the second baffle 43 in the second air duct 23 to deflect clockwise, opening the internal air blowing 21 and closing the external air blowing 22. Air is drawn in through the external air intake 12 and flows into the fan blade cavity. After being accelerated by the fan blades, it is discharged from the fan blade outlet structure 35 and flows to the internal air blowing 21, thus achieving seat air blowing.

[0062] In addition to the above embodiments, four electrically controlled valves can be installed at the four air outlets respectively. The operation of the four electrically controlled valves can then be controlled by the control logic input in the controller, thereby controlling the opening and closing of the corresponding air outlets. Compared with the above embodiments, this embodiment requires more components and occupies a larger volume, which is not conducive to the miniaturization design of the device.

[0063] The present invention also provides a vehicle seat, including the blowing and suction device for a vehicle seat as described in the above embodiments.

[0064] The embodiments of the present invention have all the advantages of the above embodiments, and will not be repeated here.

[0065] The present invention also provides an automobile, including a plurality of vehicle seats as described in the above embodiments.

[0066] The embodiments of the present invention have all the advantages of the above embodiments, and will not be repeated here.

[0067] 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 blower / suction device for a vehicle seat, characterized in that: include: A fan provides the power for airflow; A fan cavity, wherein the fan is disposed within the fan cavity, and the fan cavity has an air inlet structure and an air outlet structure; The first air duct is connected to the air inlet structure; the first air duct is provided with an internal air intake and an external air intake. The second air duct is connected to the air outlet structure; the second air duct is provided with an inner air inlet and an outer air inlet; the inner air inlet and the inner air inlet are used to connect with the car seat ventilation system, and the outer air inlet and the outer air inlet are used to connect with the outside atmosphere; as well as The valve assembly is configured to open the internal air intake and the external air outlet while simultaneously closing the external air intake and the internal air outlet, and to open the external air intake and the internal air outlet while simultaneously closing the internal air intake and the external air outlet.

2. The blowing and suction device for vehicle seats according to claim 1, characterized in that: One end of the first air duct is connected to the air inlet structure, and the other end is the inner air intake. The outer air intake is located on the side of the first air duct. One end of the second air duct is connected to the air outlet structure, and the other end is the inner air outlet. The outer air outlet is located on the side of the second air duct. The valve assembly includes a driving device, a first baffle, and a second baffle. The first baffle is rotatably disposed within the first air duct. The driving device can drive the first baffle to rotate to block the outer air intake and connect the inner air intake to the air inlet structure. The driving device can also drive the first baffle to rotate to block the inner air intake and connect the outer air intake to the air inlet structure. The second baffle is rotatably disposed within the second air duct. The driving device can drive the second baffle to rotate to block the outer air outlet and connect the inner air outlet to the air outlet structure. The driving device can also drive the second baffle to rotate to block the inner air outlet and connect the outer air outlet to the air outlet structure.

3. The blowing and suction device for vehicle seats according to claim 2, characterized in that: The driving device includes a motor, a driving gear, and a driven gear. One end of the first baffle is equipped with a first rotating shaft, which is rotatably disposed within the first air duct. One end of the first rotating shaft is connected to the motor shaft of the motor, and the other end is fixedly equipped with the driving gear. One end of the second baffle is equipped with a second rotating shaft, which is rotatably disposed within the second air duct. One end of the second rotating shaft is fixedly equipped with the driven gear, and the driven gear meshes with the driving gear for transmission.

4. The blowing and suction device for vehicle seats according to claim 3, characterized in that: The fan cavity, the first air duct, and the second air duct are all formed within two interlocking outer shells, and a partition is provided between the first air duct and the second air duct.

5. The blowing and suction device for vehicle seats according to claim 1, characterized in that: The fan is a centrifugal fan.

6. The blowing and suction device for vehicle seats according to claim 1, characterized in that: A grille structure is fixedly installed at the external air intake and the external air outlet.

7. The blowing and suction device for vehicle seats according to claim 1, characterized in that: Both the second air duct and the first air duct are rectangular cross-section air ducts.

8. The blowing and suction device for vehicle seats according to claim 4, characterized in that: The outer casing contains a motor cavity, which is located on one side of the first air duct, and the motor is disposed within the motor cavity.

9. A vehicle-type seat, characterized in that: Includes the air blowing and suction device for vehicle seats as described in any one of claims 1 to 8.

10. A car, characterized in that: Includes several vehicle seats as described in claim 9.

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