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

Abstract

The utility model 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. According to the utility model, a driver or a passenger is allowed to adjust air blowing or air suction according to personal preference, so that a personalized seat environment is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat ventilation, in particular to a blowing and suction device for a vehicle seat, a vehicle seat and an automobile. Background Art

[0002] With the improvement of living standards, automobiles have gradually become a means of transportation for the public, and people have higher and higher requirements for the comfort of automobiles. Among them, the comfort of automobile seats is the most critical for use, and more and more manufacturers adopt 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 blow or suck air simply and cannot realize the switching between blowing and suction. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a blowing and suction device for a vehicle seat, a vehicle seat and an automobile to solve the problems existing in the above-mentioned prior art and meet the different preference requirements of drivers or passengers for ventilation systems.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a blowing and suction device for a vehicle seat, including:

[0006] A fan, providing power for air flow;

[0007] A fan cavity, the fan is arranged in the fan cavity, and the fan cavity has an air inlet structure and an air outlet structure;

[0008] A first air duct, the first air duct is communicated with the air inlet structure; an inner suction port and an outer suction port are arranged on the first air duct;

[0009] A second air duct, the second air duct is communicated with the air outlet structure; an inner blowing port and an outer blowing port are arranged on the second air duct; the inner suction port and the inner blowing port are used for communicating with the automobile seat ventilation system, and the outer suction port and the outer blowing port are used for communicating with the outside atmosphere; and

[0010] A valve assembly, configured to open the inner suction port and the outer blowing port while closing the outer suction port and the inner blowing port and open the outer suction port and the inner blowing port while closing the inner suction port and the outer blowing port.

[0011] Preferably, one end of the first air duct is communicated with the air inlet structure, the other end is the inner air suction port, and the outer air suction port is arranged on the side of the first air duct; one end of the second air duct is communicated with the air outlet structure, the other end is the inner air blowing port, and the outer air blowing port is arranged 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 arranged in the first air duct. The driving device can drive the first baffle to rotate to block the outer air suction port and make the inner air suction port communicate with the air inlet structure. The driving device can also drive the first baffle to rotate to block the inner air suction port and make the outer air suction port communicate with the air inlet structure. The second baffle is rotatably arranged in the second air duct. The driving device can drive the second baffle to rotate to block the outer air blowing port and make the inner air blowing port communicate with the air outlet structure. The driving device can also drive the second baffle to rotate to block the inner air blowing port and make the outer air blowing port communicate with 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. The first rotating shaft is rotatably arranged in the first air duct. One end of the first rotating shaft is in transmission connection with 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. The second rotating shaft is rotatably arranged in the second air duct. One end of the second rotating shaft is fixedly provided with the driven gear, and the driven gear is in meshing transmission with the driving gear.

[0013] Preferably, the fan cavity, the first air duct and the second air duct are all formed in two outer shells that are buckled up and down. A partition is arranged between the first air duct and the second air duct.

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

[0015] Preferably, grid structures are fixedly arranged at the outer air suction port and the outer air blowing port.

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

[0017] Preferably, a motor cavity is formed in the outer shell. The motor cavity is located on one side of the first air duct, and the motor is arranged in the motor cavity.

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

[0019] The present invention also provides a vehicle, including a plurality of vehicle seats as described above.

[0020] The utility model has achieved the following technical effects compared with the prior art:

[0021] The blowing and suction device of the utility model allows the driver or passenger to adjust the blowing or suction according to personal preferences, realizing a personalized seat environment.

[0022] Furthermore, a centrifugal fan is adopted, and the air duct design is optimized to reduce noise and energy consumption while providing good ventilation effects.

[0023] Furthermore, one motor drives two baffles to deflect through a gear set, and the blowing and suction are changed by controlling the deflection direction of the baffles. The structure is simple, the operation is reliable, and the occupied space is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic structural diagram of the blowing and suction device for a vehicle seat provided by an embodiment of the present utility model;

[0026] Figure 2 It is Figure 1 The internal structural diagram of the housing without a valve assembly in

[0027] Figure 3 It is a partial structural diagram of the upper housing;

[0028] Figure 4 It is Figure 1 The internal structural diagram of the housing with a valve assembly in

[0029] Figure 5 It is Figure 1 The structural diagram of the valve assembly in

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

[0031] Figure 7 It is a structural diagram of the lower housing, the fan and the valve assembly;

[0032] Figure 8 It is Figure 1 The top view of

[0033] Figure 9 It is Figure 8 The sectional view taken along the line A-A in

[0034] In the figure: 2 - fan; 11 - inner air suction opening; 12 - outer air suction opening; 13 - first air duct; 23 - second air duct; 21 - inner air blowing opening; 22 - outer air blowing opening; 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. Specific embodiments

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0036] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

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

[0038] The fan 2 provides the power for air flow. The fan 2 is preferably a centrifugal fan, and of course, it can also be other types of fans 2.

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

[0040] The first air duct 13 is communicated with the air inlet structure 37; an inner air suction opening 11 and an outer air suction opening 12 are arranged on the first air duct 13.

[0041] The second air duct 23 is communicated with the air outlet structure 35; an inner air blowing opening 21 and an outer air blowing opening 22 are arranged on the second air duct 23; the inner air suction opening 11 and the inner air blowing opening 21 are used to communicate with the ventilation system of the vehicle seat, and the outer air suction opening 12 and the outer air blowing opening 22 are used to communicate with the outside atmosphere.

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

[0043] The blowing and suction device of the present utility model allows the driver or passenger to adjust the blowing or suction according to personal preferences, so as to realize a personalized seat environment.

[0044] During use, when the passenger can change the on-off states of the inner blowing port 21 and the outer blowing port 22 with the air outlet structure 35, and change the on-off states of the inner suction port 11 and the outer suction port 12 with the air inlet structure 37 through the valve assembly, so as to realize blowing or suction into the automotive seat ventilation system.

[0045] More specifically, when the passenger wants to turn on the suction mode, the valve assembly is controlled to open the inner suction port 11 and the outer blowing port 22 while closing the outer suction port 12 and the inner blowing port 21. When the passenger wants to turn on the blowing mode, the valve assembly is controlled to open the outer suction port 12 and the inner blowing port 21 while closing the inner suction port 11 and the outer blowing port 22.

[0046] In addition, in some examples known to the inventors of the present application, blowing and suction into the seat ventilation system are realized by rotating the fan forward and backward. However, this will lead to low ventilation efficiency. The inventors of the present application analyzed and found that this is because the fan blades have convexities, concavities and twists, and simply changing the rotation direction by rotating the fan blades forward and backward is not the best aerodynamics, so the ventilation efficiency will be low, and the present application does not have the above problems or defects.

[0047] In some embodiments, one end of the first air duct 13 is communicated with the air inlet structure 37, the other end is the inner suction port 11, and the outer suction port 12 is arranged on the side of the first air duct 13; one end of the second air duct 23 is communicated with the air outlet structure 35, the other end is the inner blowing port 21, and the outer blowing port 22 is arranged 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 arranged in the first air duct 13. The driving device can drive the first baffle 42 to rotate to block the outer suction port 12 and make the inner suction port 11 communicate with the air inlet structure 37. The driving device can also drive the first baffle 42 to rotate to block the inner suction port 11 and make the outer suction port 12 communicate with the air inlet structure 37; the second baffle 43 is rotatably arranged in the second air duct 23. The driving device can drive the second baffle 43 to rotate to block the outer blowing port 22 and make the inner blowing port 21 communicate with the air outlet structure 35. The driving device can also drive the second baffle 43 to rotate to block the inner blowing port 21 and make the outer blowing port 22 communicate with the air outlet structure 35.

[0048] The "blocking" in this embodiment can be understood as blocking relative to the fan cavity 36, that is, cutting off the communication with the fan cavity 36, so that some structures are not communicated with the fan cavity 36.

[0049] In this embodiment, by driving the first baffle 42 to rotate through the driving device, the air outlets in the same air duct can be blocked or opened. It can be understood that the first baffle 42 has two states, namely the state of blocking the external air suction port 12 or the state of blocking the internal air suction port 11. When the first baffle 42 is in the state of blocking the external air suction port 12, the internal air suction port 11 is in the open state. Similarly, when the first baffle 42 is in the state of blocking the internal air suction port 11, the external air suction port 12 is in the open state. This embodiment realizes the purpose of controlling the states of two air outlets by only setting one valve (i.e., the first baffle 42 or the second baffle 43), saving the number of components and the volume of the whole 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 configured with a first rotating shaft, and the first rotating shaft is rotatably arranged in the first air duct 13. One end of the first rotating shaft is in transmission connection with 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 configured with a second rotating shaft, and the second rotating shaft is rotatably arranged 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 is in meshing transmission with the driving gear 44.

[0051] In this embodiment, only one motor 41 is set to control the two baffles, further reducing the number of components and the volume of the whole 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 buckled up and down. The two outer shells are respectively an upper shell 31 and a lower shell 32, and a partition is provided between the first air duct 13 and the second air duct 23.

[0053] This embodiment is convenient for assembling components such as the motor 41, gears and baffles into the outer shell. The outer shell is configured with a gear set cavity 34, and the driving gear 44 and the driven gear 45 are arranged in the gear set cavity 34.

[0054] In some embodiments, shaft holes or shaft grooves can be provided on the outer shell, and then the ends of the first rotating shaft and the second rotating shaft are placed in the shaft holes or shaft grooves to realize the rotational connection relationship between the first rotating shaft, the second rotating shaft and the outer shell.

[0055] In some embodiments, grid structures are fixedly provided at the external air suction port 12 and the external air blowing port 22.

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

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

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

[0059] Specific implementation method:

[0060] Suction mode: Control the motor 41 to rotate clockwise, driving the first baffle 42 and the driving gear 44 in the first air duct 13 to rotate clockwise. The inner suction opening 11 is opened, and the outer suction opening 12 is closed. The driving gear 44 drives the driven gear 45 and the second baffle 43 in the second air duct 23 to deflect counterclockwise. The outer blowing opening 22 is opened, and the inner blowing opening 21 is closed. Air is inhaled from the inner suction opening 11 and then flows into the fan blade cavity. After being accelerated by the fan blades, it is discharged from the fan blade air outlet structure 35 and flows to the outer blowing opening 22, thereby realizing the suction of the seat.

[0061] Blowing mode: Control the motor 41 to rotate counterclockwise, driving the first baffle 42 and the driving gear 44 in the first air duct 13 to rotate counterclockwise. The outer suction opening 12 is opened, and the inner suction opening 11 is closed. The driving gear 44 drives the driven gear 45 and the second baffle 43 in the second air duct 23 to deflect clockwise. The inner blowing opening 21 is opened, and the outer blowing opening 22 is closed. Air is inhaled from the outer suction opening 12 and then flows into the fan blade cavity. After being accelerated by the fan blades, it is discharged from the fan blade air outlet structure 35 and flows to the inner blowing opening 21, thereby realizing the blowing of the seat.

[0062] In addition to the above embodiments, 4 electric control valves can also be separately provided at the four air outlets, and then the operation of the 4 electric control valves is controlled through the control logic input in the controller, thereby controlling the opening and closing of the corresponding air outlets. Compared with the above several embodiments, this embodiment requires more components and occupies a larger volume, which is not conducive to the miniaturized design of the device.

[0063] The present invention also provides a vehicle seat, including the blowing and suction device for the 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 elaborated here.

[0065] The present invention also provides a vehicle, 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 elaborated here.

[0067] In this utility model, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the utility model.

Claims

1. A blowing and suction device for a vehicle seat, characterized in that: Comprising: A fan, providing power for air flow; A fan cavity, the fan being disposed within the fan cavity, the fan cavity having an air inlet structure and an air outlet structure; A first air duct, the first air duct being in communication with the air inlet structure; an inner suction opening and an outer suction opening are provided on the first air duct; A second air duct, the second air duct being in communication with the air outlet structure; an inner blowing opening and an outer blowing opening are provided on the second air duct; the inner suction opening and the inner blowing opening are used for communicating with an automotive seat ventilation system, and the outer suction opening and the outer blowing opening are used for communicating with the outside atmosphere; And A valve assembly, configured to open the inner suction opening and the outer blowing opening while closing the outer suction opening and the inner blowing opening and to open the outer suction opening and the inner blowing opening while closing the inner suction opening and the outer blowing opening.

2. The blowing and suction air device for vehicle seats according to claim 1, characterized in that: One end of the first air duct is in communication with the air inlet structure, the other end is the inner suction opening, and the outer suction opening is provided on the side of the first air duct; one end of the second air duct is in communication with the air outlet structure, the other end is the inner blowing opening, and the outer blowing opening is provided 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 suction opening and to connect the inner suction opening with the air inlet structure, and the driving device can also drive the first baffle to rotate to block the inner suction opening and to connect the outer suction opening with 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 blowing opening and to connect the inner blowing opening with the air outlet structure, and the driving device can also drive the second baffle to rotate to block the inner blowing opening and to connect the outer blowing opening with the air outlet structure.

3. The blowing and suction air 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 configured with a first rotating shaft, the first rotating shaft is rotatably disposed within the first air duct, one end of the first rotating shaft is in transmission connection with the motor shaft of the motor, and the other end is fixedly provided with the driving gear. One end of the second baffle is configured with a second rotating shaft, the second rotating shaft 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 and the driving gear are in meshing transmission.

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

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

6. The blowing and suction air device for vehicle seats according to claim 1, characterized in that: Grid structures are fixedly provided at the outer suction opening and the outer blowing opening.

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

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

9. A vehicle seat, characterized in that: Including the blowing and suction air device for vehicle seats according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Including a number of vehicle seats according to claim 9.

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