Ventilation device of automobile seat

Abstract

The utility model discloses a ventilation device of an automobile seat. The automobile seat defines a mounting space and is provided with a plurality of ventilation holes communicated with the mounting space. The ventilation device of the automobile seat comprises a first fan suitable for being arranged in the installation space and at least one second fan suitable for being arranged in the installation space and in information connection with the first fan. The first fan comprises an operation body and a control module, wherein the control module is connected with the operation body and used for generating a driving signal for driving the operation body to operate so as to introduce airflow into the ventilation hole. The second fan comprises an operation module and a connecting line, wherein the operation module is used for operating to introduce air flow into the ventilation hole, and the connecting line is connected between the operation module and the control module and used for transmitting the driving signal to the operation module so that the operation module and the operation body can rotate synchronously.

Description

Technical Field

[0001] This utility model relates to a car seat configuration, and more particularly to a car seat ventilation device. Background Technology

[0002] In recent years, car seats have increasingly emphasized comfort, particularly addressing the stuffiness caused by prolonged sitting. Cooling fans are typically installed under the seat cushion to create airflow between the passenger and the seat, expelling accumulated heat and moisture. To achieve a satisfactory effect, multiple cooling fans may be necessary. However, because these fans are usually modularly manufactured, each has its own independent power supply and control system. This inevitably leads to issues such as asynchronous start-up and shutdown times or inconsistent airflow. When multiple fans cannot coordinate effectively, the performance of the car seat in improving passenger comfort will inevitably be negatively impacted. Utility Model Content

[0003] The purpose of this invention is to provide a ventilation device for car seats that allows multiple cooling fans to be properly matched, thereby optimizing passenger comfort.

[0004] This invention relates to a ventilation device for a car seat, wherein the car seat defines an installation space and has a plurality of ventilation holes communicating with the installation space. The ventilation device for the car seat includes a first fan adapted for installation in the installation space, and at least one second fan adapted for installation in the installation space and connected to the first fan.

[0005] The first fan includes an operating body and a control module connected to the operating body and used to generate a drive signal to drive the operating body to introduce airflow into the ventilation hole.

[0006] The at least one second fan includes an operating module for guiding airflow into the ventilation opening, and a connecting line between the operating module and the control module of the first fan. The connecting line is used to transmit drive signals from the control module to the operating module, causing the operating module to rotate synchronously with the operating body.

[0007] The ventilation device for the car seat of this utility model includes a drive signal generated by the control module of the first fan, which includes first steering information for controlling the operating body to rotate in a first rotation direction, and at least one second steering information for controlling the operating module of the second fan to rotate in a second rotation direction, wherein the first rotation direction is the same as the second rotation direction.

[0008] The ventilation device for the car seat of this utility model includes a drive signal generated by the control module of the first fan, which includes first steering information for controlling the operating body to rotate in a first rotation direction, and at least one second steering information for controlling the operating module of the second fan to rotate in a second rotation direction, wherein the first rotation direction is opposite to the second rotation direction.

[0009] The ventilation device for the car seat of this utility model includes a plurality of second fans, and the drive signal includes a plurality of second steering information for controlling the operation modules of the second fans, and at least one additional steering information for controlling at least one of the operation modules to rotate in a direction opposite to the second rotation direction.

[0010] The beneficial effects of this utility model are as follows: the operation of the first fan and the at least one second fan can be controlled simultaneously by the control module, so there will be no time difference between the opening and closing of the first fan and the at least one second fan, or a difference in air volume. Thus, the existing design can be implemented in a way that optimizes the comfort of the car seat as expected. Attached Figure Description

[0011] Figure 1 This is a sectional view illustrating a first embodiment of the ventilation device for a car seat according to the present invention;

[0012] Figure 2 It is a block diagram illustrating a control module for a first fan in the first embodiment;

[0013] Figure 3 It is similar Figure 2 The block diagram illustrates a second embodiment of the ventilation device for a car seat according to this utility model;

[0014] Figure 4 It is similar Figure 1 The sectional view, in conjunction with Figure 3 The operation of the second embodiment will be explained. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] See Figure 1This invention discloses a first embodiment of a ventilation device for a car seat. The car seat 9 defines an installation space 90 and includes a seat cushion 91 having a plurality of ventilation holes 910 communicating with the installation space 90. This first embodiment includes a first fan 1 adapted to be disposed in the installation space 90, and a plurality of second fans 2 adapted to be disposed in the installation space 90 and connected to the first fan 1. The number of the first fan 1 and the second fans 2, as well as their positions relative to the ventilation holes 910, can be freely configured according to the type of the car seat 9 and its heat dissipation requirements. In this first embodiment, the configuration is described with the first fan 1 and two second fans 2 each corresponding to three ventilation holes 910, but in actual implementation, this is not a limitation.

[0017] The first fan 1 includes an operating body 11 and a control module 12 connected to the operating body 11 and used to generate a drive signal to drive the operating body 11 to operate and introduce airflow into the ventilation hole 910. Specifically, the operating body 11 is an assembly of a fan frame that can operate to generate airflow and a rotating assembly of fan blades or impellers, while the control module 12 is an assembly of a drive circuit board and components such as a control chip that can emit control signals.

[0018] The second fan 2 includes an operating module 21 for guiding airflow into the ventilation hole 910, and a connecting line 22 connecting the operating module 21 and the control module 12 of the first fan 1. The operating module 21 is similar to the operating body 11 of the first fan 1, comprising a rotating fan frame that generates airflow, and rotating components such as fan blades or impellers. The connecting line 22 transmits the drive signal from the control module 12 to the operating module 21, causing the operating module 21 to rotate synchronously with the operating body 11. In other words, the second fan 2 only has rotating components such as the fan frame, fan wheel, and magnet ring, and does not have a control circuit board for driving and controlling its operation. That is, in this first embodiment, the operation of the operating body 11 and the operating module 21 are synchronously controlled by the control module 12 of the first fan 1.

[0019] See Figure 2 and cooperate Figure 1The drive signal generated by the control module 12 of the first fan 1 includes a first steering information for controlling the operating body 11 to rotate in a first rotation direction, and at least one second steering information for controlling the operating module 21 of the second fan 2 to rotate in a second rotation direction. In this first embodiment, primarily addressing the heat dissipation needs of the seat cushion 91 for seating, the first rotation direction and the second rotation direction are the same, causing the first fan 1 and the second fan 2 to operate together to generate a heat dissipation effect.

[0020] Furthermore, for heat dissipation designs targeting specific heat dissipation areas or guiding airflow, the drive signal can also make the first rotation direction and the second rotation direction opposite to each other. This allows the first fan 1 and the second fan 2 to cooperate and be positioned to generate mutual circulation, thereby controlling the differences in airflow (blowing) and suction (suction) between the first fan 1 and the second fan 2 to meet different positional needs for "blowing" and "suction circulation." For example, the ventilation hole 910 can be configured in a specific location where it will not be obstructed when people are seated, and the first fan 1 or the second fan 2, which can change its rotation direction to "suction," can be configured in the ventilation hole 910 to achieve airflow circulation in conjunction with the first fan 1 or the second fan 2 for "blowing," thereby optimizing the overall heat dissipation effect of the first embodiment.

[0021] See Figure 3 and Figure 4 This is a second embodiment of the ventilation device for a car seat according to the present invention. The difference between this second embodiment and the first embodiment is that this second embodiment includes multiple second fans 2, and the drive signal includes multiple second steering information for controlling the operation modules 21 of the second fans 2, and additional steering information for controlling one of the operation modules 21 to rotate in a direction opposite to the second rotation direction. That is, in this second embodiment, the second fans 2 can use the additional steering information to ensure that not all of the second fans 2 rotate in the same direction, thereby accommodating the heat dissipation needs of the second fans 2 which may be positioned in different locations. Specifically, if... Figure 4 As shown, of the three second fans 2, the two second fans 2 located at the seat cushion 91 can rotate in a different direction than the one second fan 2 disposed on the backrest 92 connected to the seat cushion 91, thereby achieving the effect of airflow circulation in the seating area through the difference between blowing and inhaling.

Claims

1. A ventilation device for a car seat, the car seat defining an installation space and having a plurality of ventilation holes communicating with the installation space; characterized in that: The ventilation device for the car seat includes: A first fan is suitable for installation in the installation space and includes an operating body and a control module connected to the operating body for generating a drive signal to drive the operating body to introduce airflow into the ventilation hole. and At least one second fan is adapted to be disposed in the installation space and informationally connected to the first fan, and includes an operating module for operating to introduce airflow into the ventilation holes, and a connecting line connecting the operating module and a control module of the first fan, the connecting line being used to transmit drive signals from the control module to the operating module, so that the operating module rotates synchronously with the operating body.

2. The ventilation device for a car seat according to claim 1, characterized in that: The drive signal generated by the control module of the first fan includes first steering information for controlling the operating body to rotate in a first rotation direction, and at least one second steering information for controlling the operating module of the second fan to rotate in a second rotation direction, wherein the first rotation direction is the same as the second rotation direction.

3. The ventilation device for a car seat according to claim 1, characterized in that: The drive signal generated by the control module of the first fan includes first steering information for controlling the operating body to rotate in a first rotation direction, and at least one second steering information for controlling the operating module of the second fan to rotate in a second rotation direction, wherein the first rotation direction is opposite to the second rotation direction.

4. The ventilation device for a car seat according to claim 2 or 3, characterized in that: The ventilation device of the car seat includes a plurality of second fans, and the drive signal includes a plurality of second steering information for controlling the operation modules of the second fans, and at least one additional steering information for controlling at least one of the operation modules to rotate in a direction opposite to the second rotation direction.

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