Ventilation structure of automobile seat backrest

Abstract

The utility model relates to a ventilation structure of an automobile seat backrest, which comprises a framework and a fan, the periphery of the framework is coated with a surface sleeve, a filling cavity is formed between the surface sleeve and the framework, the surface sleeve is provided with a through ventilation hole, and the filling cavity is filled with foam cotton. A sliding rail is fixed to the side wall of the installation base and coupled with sliding blocks, the sliding blocks can be in sliding fit with the sliding rail, a connecting base fixed to the sliding blocks is arranged between the sliding blocks on the two sides, the connecting base is used for installing a draught fan, and an opening is formed in the side, opposite to the ventilation hole, of the face sleeve. And the connecting seat slides into or out of the filling cavity through the opening. The utility model has the following advantage and effect: the fan can be conveniently maintained or replaced.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, specifically to a ventilation structure for an automotive seat back. Background Technology

[0002] Car seats mainly consist of a frame, foam padding, and a cover. The foam padding is fixed to the frame, and then the cover is used to cover the seat, completing the assembly. Some car seats also feature heating and ventilation functions, making them popular with users.

[0003] Currently, ventilation of car seats is mainly achieved through a fan installed on the frame and ventilation holes made in the foam and cover. The fan is installed behind the frame, and airflow is made to circulate in the ventilation holes by blowing or sucking air, thus achieving ventilation of the car seat.

[0004] However, after the fan is installed, it needs to be covered with a cover. Therefore, when the fan needs to be repaired or replaced during long-term use, the cover needs to be removed first, which makes the fan repair or replacement process somewhat inconvenient. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ventilation structure for the backrest of a car seat, which facilitates the maintenance or replacement of the fan.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilation structure for a car seat back, comprising a frame and a fan. The frame is covered with a cover, and a filling cavity is formed between the cover and the frame. The cover has through ventilation holes, and the filling cavity is filled with foam. The frame is symmetrically provided with mounting seats, and a slide rail is fixed to the side wall of the mounting seat. A slider is coupled to the slide rail, and the slider can slide with the slide rail. A connecting seat fixed to the slider is provided between the two sliders. The connecting seat is used to install the fan. The cover has an opening on the side facing away from the ventilation holes, and the connecting seat slides into or out of the filling cavity through the opening.

[0007] The present invention is further configured such that: the connecting seat is provided with a threaded hole on the side facing the fan, the threaded hole is multiple and spaced apart from each other, and the threaded hole is used to install the fan.

[0008] The present invention is further configured such that: the connecting seat has a protruding connecting part on the side opposite to the threaded hole, and the connecting part is fixed with a closing sleeve, which is used to open or close the opening.

[0009] The present invention is further configured such that the closing sleeve is made of an elastic material.

[0010] The present invention is further configured such that: the frame is provided with a through extension opening, the extension opening is opposite to the slide rail, and one end of the slide rail extends toward the extension opening.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Because symmetrical mounting seats are set on the frame, slide rails can be installed on the mounting seats. By assembling slidable sliders on the slide rails, the connecting seat for installing the fan can be installed on the sliders. Therefore, by sliding the sliders, the fan can be slid out of or into the filling cavity through the opening. Thus, when the fan needs to be repaired or replaced, there is no need to remove the cover; the fan can be repaired or replaced simply by sliding, which improves the convenience of fan repair or replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall skeleton structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the exploded skeleton structure in this utility model;

[0017] Figure 5 This is a schematic diagram showing the arrangement of the foam on the back of the backrest in this utility model. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figures 1 to 5 As shown, this utility model discloses a ventilation structure for a car seat back, including a frame 1 made of metal or high-strength plastic. The frame 1 is covered with a fabric or leather cover 3, forming a filling cavity between the cover 3 and the frame 1. The filling cavity is filled with soft foam 4 to improve seat comfort. Multiple through-holes are distributed on the surface of the cover 3 for air circulation. Additionally, corresponding ventilation holes can be further formed on the foam surface to further enhance air circulation. Mounting seats 5 are symmetrically fixed to the left and right sides of the frame 1. The mounting seats 5 are fixed to the frame 1 by welding or threaded connection. The mounting seats 5 have a triangular structure to ensure their strength. Slide rails 6 are provided on the side walls of the opposite sides of the mounting seats 5. The slide rails 6 adopt a dovetail groove structure or a linear ball bearing structure, forming a sliding engagement with the sliders 7 coupled to the slide rails 6. A horizontally arranged connecting seat 8 is provided between the two sliders 7. The two ends of the connecting seat 8 are fixed to the two sliders 7 by threaded connections. The connecting seat 8 is used to install the fan 2. Specifically, the connecting seat 8 has a threaded hole on the side facing the frame 1 that corresponds to the threaded hole on the fan 2. The fan 2 is fixed to the connecting seat 8 by bolts, so that the fan 2 can slide along the slide rail 6 with the slider 7. In addition, the fan 2 can also be directly fixed to the connecting seat 8 by adhesive bonding. The back of the cover 3 (i.e., the side away from the ventilation hole) is designed with an opening 9. When it is necessary to install or remove the fan 2, the operator can push the connecting seat 8 and the fan 2 into the filling cavity or pull them out through the opening 9 along the slide rail 6. This eliminates the need to remove the cover 3 or damage the foam 4 structure, significantly simplifying the maintenance process.

[0021] Furthermore, to reduce the entry of dust or foreign objects into the filling cavity through the opening 9, a protruding connecting part 81 extends from the side of the connecting seat 8 opposite to the threaded hole. The end of the connecting part 81 is fixed with a flexible closing sleeve 10 by adhesive bonding. The closing sleeve 10 consists of an inner liner and an outer sleeve covering the inner liner. The inner liner is made of elastic materials such as rubber, silicone, or foam 4, while the outer sleeve is made of the same material as the outer sleeve 3, thus ensuring overall integrity. After the blower 2 is pushed into the filling cavity, the closing sleeve 10 undergoes elastic deformation under pressure when passing through the opening 9, thus sealing the opening 9 of the outer sleeve 3 and preventing dust or foreign objects from entering the filling cavity. The friction generated by the elastic deformation also limits the movement of the slider 7, preventing accidental movement. In addition, the frame 1 is provided with an extension opening 11 at the position corresponding to the end of the slide rail 6. One end of the slide rail 6 extends out of the extension opening 11, which can increase the maximum sliding formation of the slider 7 on the slide rail 6. This allows the gap between the fan 2 and the foam 4 on the front of the backrest to be reduced after the fan 2 is pushed into the filling cavity, so that the air force generated by the fan 2 can be blown out of the ventilation hole more quickly.

[0022] During actual installation, the operator pre-fixes the fan 2 onto the connecting seat 8, holds the connecting seat 8, and pushes it into the filling cavity along the slide rail 6 from the opening 9 on the back of the cover 3 until the fan 2 is pushed to the target position. At this time, the closing sleeve 10 can be compressed and elastically deformed when passing through the opening 9, thus covering the opening 9 of the cover 3 to achieve a seal. During maintenance, the connecting seat 8 is pulled in the opposite direction until the limiting between the closing sleeve 10 and the opening 9 is released (the closing sleeve 10 is pulled out from the opening 9 and then reset), and the entire fan 2 can be pulled out of the filling cavity for maintenance or replacement. This design not only enables quick assembly and disassembly of the fan 2, but also ensures the integrity of the backrest after the fan 2 is installed, while maintaining a seal to reduce the entry of dust or foreign objects, thanks to the elastic closing sleeve 10.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A ventilation structure for a car seat backrest, comprising a frame and a fan, wherein the frame is covered with a cover, a filling cavity is formed between the cover and the frame, the cover has through ventilation holes, and the filling cavity is filled with foam, characterized in that, The frame is symmetrically provided with mounting seats, and the side wall of the mounting seat is fixed with a slide rail. The slide rail is coupled with a slider, and the slider can form a sliding fit with the slide rail. A connecting seat fixed to the slider is provided between the two sliders. The connecting seat is used to install the fan. The face sleeve is provided with an opening on the side facing away from the ventilation hole. The connecting seat slides into or out of the filling cavity through the opening.

2. The ventilation structure for a car seat back as described in claim 1, characterized in that, The connector is provided with threaded holes on the side facing the fan. There are multiple threaded holes spaced apart from each other. The threaded holes are used to install the fan.

3. The ventilation structure for a car seat backrest according to claim 2, characterized in that, The connector has a protruding connecting part on the side opposite to the threaded hole. The connecting part is fixed with a closing sleeve, which is used to open or close the opening.

4. The ventilation structure for a car seat back as described in claim 3, characterized in that, The closure sleeve is made of an elastic material.

5. The ventilation structure for a car seat backrest according to claim 1, characterized in that, The frame is provided with a through extension opening, which is opposite to the slide rail, and one end of the slide rail extends toward the extension opening.

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