A ventilated cushion for a car seat

Abstract

This application relates to a ventilated cushion for an automobile seat. The cushion body is provided with multiple ventilation holes. A fan mounting position is provided on the back of the cushion body within the area of ​​the ventilation holes. The cushion body comprises an edge portion, a backrest portion, and a lumbar support portion. Both the backrest portion and the lumbar support portion are located within the area enclosed by the edge portion. The backrest portion is longitudinally provided with multiple guide grooves, with adjacent guide grooves forming a backrest ventilation area. The lumbar support portion is transversely provided with at least one groove, with lumbar ventilation areas respectively provided at both ends of the groove. Support protrusions are provided on the back of the cushion body at positions corresponding to the grooves, with the fan mounting position located above the support protrusions. The ventilation holes are provided in the corresponding backrest ventilation areas and lumbar support ventilation areas. This application significantly improves the problem of inconsistent and uneven airflow from the cushion.

Description

Technical Field

[0001] The present application relates to the field of automobile seat cushions, and in particular to a ventilated cushion for automobile seats. Background Art

[0002] Cars are a common and commonly used means of transportation in today's era. With the gradual development of the times and the continuous improvement of people's daily living standards, there are gradually more requirements for the driving comfort of cars. Cars are not only required to have higher controllability, but also better comfort.

[0003] However, during the production process, cars need to be tuned according to the usage environment of each model. For example, if the tuning is inclined towards comfort, the vehicle's handling will be partially sacrificed, and vice versa. Especially for the tuning of SUVs and off-road models, the sacrifice in comfort will be relatively greater.

[0004] Car seats are the main source of comfort for drivers and passengers, so there are many seat cushions and back cushions for car seats. Cushions are more common in daily life, such as breathable cushions. In the hot summer, drivers and passengers tend to sweat in the car, especially the back. Sweating will seriously affect the comfort of the back. This breathable cushion can improve the breathability to a certain extent, making the driver and passengers more comfortable.

[0005] For example, a car seat ventilated cushion with Chinese patent publication number CN203211145U includes a cushion cover and a plug with a speed control device. A cushion body and a cushion front plate are arranged inside the cushion cover; fan mounting compartments are arranged on both sides of the front lower end of the cushion body, and a turbo fan is arranged in the fan mounting compartment; air outlet guide grooves are arranged around the fan mounting compartment; the cushion front plate is arranged at the front end of the cushion body, and at the same time, an air outlet is arranged on the cushion front plate at a position corresponding to the air outlet guide groove.

[0006] Regarding the above-mentioned related technologies, the inventor believes that: when the driver and passengers lean back for a long time, the fan is positioned too close to the seat and the back of the driver and passengers, resulting in reduced air volume, and even causing the fan to burn out easily due to obstructed air flow. At the same time, the air outlets are too scattered in the design, resulting in large differences in the air volume of each air outlet. The part farther away from the fan has less air volume, while the part farther away from the fan has a large air volume, but it is easily blocked when leaning back, resulting in poor overall ventilation effect.

[0007] Another example is a ventilated and breathable chair with Chinese patent publication number CN2273137Y. Several longitudinal ribs are protruding on the back of the cushion, dividing the cushion into several ventilation slots. Several transverse ribs are embedded in appropriate positions of the longitudinal ribs to fix the position of the longitudinal ribs to ensure that they do not become messy due to the shaking of the human body; a reverse groove is dug on the upper edge surface of the cushion to block the airflow blown out of the ventilation slot of the cushion and change the direction of the airflow.

[0008] Regarding the above-mentioned related technologies, the inventor believes that: the ventilation slots are essentially a large square air outlet divided into multiple rectangular air outlets by longitudinal and transverse ribs arranged longitudinally and transversely. Although it can ensure a certain air output, the air output in the area close to the waist is relatively large, while the air volume of the ventilation slots on the upper side will be very small. If a high-power fan is used, although the overall air output can be guaranteed, the air output at the waist will be larger. When the vehicle is driving, the ventilation volume on the upper side will fluctuate, which can easily cause the driver and passengers to catch cold and feel uncomfortable. Summary of the Invention

[0009] In order to improve the defects of inconsistent and uneven air output of the cushion in the above-mentioned related art, the present application provides a ventilated cushion for a car seat.

[0010] This application provides a ventilated cushion for a car seat, which adopts the following technical solution:

[0011] A ventilated cushion for a car seat comprises a cushion body, which is provided with a plurality of ventilation holes. A fan mounting position is provided on the back of the cushion body in the area of ​​the ventilation holes. The cushion body comprises an edge portion, a backrest portion, and a lumbar support portion. The backrest portion and the lumbar support portion are both located in the area surrounded by the edge portion. The backrest portion is longitudinally provided with a plurality of guide grooves, and a backrest ventilation area is formed between adjacent guide grooves; the lumbar support portion is transversely provided with at least one groove, and lumbar ventilation areas are respectively provided at both ends of the groove; a support protrusion is provided on the back of the cushion body at a position corresponding to the groove, and the fan mounting position is located on the upper side of the support protrusion; the ventilation holes are provided in the corresponding backrest ventilation area and lumbar support ventilation area.

[0012] Optionally, the guide grooves extend from the lower side of the backrest portion to the upper side, and extend to the edge of the backrest portion and connect with the edge portion.

[0013] Optionally, the backrest ventilation area is respectively set as the first ventilation area, the second ventilation area, the third ventilation area and the fourth ventilation area from the middle to the two sides, and the guide grooves between the first ventilation area and the second ventilation area extend upward from the lower side position of the backrest part to the middle position and then tilt upward to the outside to form an arc-shaped guide section; the guide grooves between the second ventilation area and the third ventilation area extend upward from the lower side position of the backrest part to the middle position and then tilt upward to the outside to form an arc-shaped guide section; the guide grooves between the third ventilation area and the fourth ventilation area extend from the lower side position of the backrest part to the upper side position and tilt outward to form an arc-shaped guide section.

[0014] Optionally, the width of the guide groove between the first ventilation area and the second ventilation area is equal from bottom to top.

[0015] Optionally, the width of the guide groove between the second ventilation area and the third ventilation area gradually increases from bottom to top.

[0016] Optionally, the width of the guide groove between the third ventilation area and the fourth ventilation area gradually increases from bottom to top.

[0017] Optionally, the width of the guide groove between the first ventilation zone and the second ventilation zone is greater than the maximum width of the guide groove between the second ventilation zone and the third ventilation zone; the width of the guide groove between the first ventilation zone and the second ventilation zone is greater than or equal to the maximum width of the guide groove between the third ventilation zone and the fourth ventilation zone.

[0018] Optionally, the ventilation holes in the first ventilation zone and the fourth ventilation zone are strip holes of equal width; the ventilation holes in the first ventilation zone are arranged in three groups from bottom to top, the lengths of the strip holes in the lower group are all equal, the length of the strip holes in the middle group gradually increases from bottom to top, and the length of the strip holes in the upper group gradually decreases from bottom to top; the minimum length of the strip holes in the middle group is greater than the length of the strip holes in the lower group, and the maximum length is greater than the length of the strip holes in the upper group; the length of the strip holes in the fourth ventilation zone gradually decreases from bottom to top.

[0019] Optionally, the ventilation holes in the second ventilation zone and the third ventilation zone are both circular holes, and the apertures of the ventilation holes in the second ventilation zone and the third ventilation zone gradually increase from bottom to top.

[0020] Optionally, the front of the edge portion is higher than the front of the backrest portion and the lumbar support portion, and a transition section is provided on the left and right sides of the edge portion of the lumbar support portion. The front of the transition section is inclined toward the rear of the cushion body to form a connection between the front of the transition section and the front of the lumbar support portion.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Support protrusions are provided to form a larger ventilation space between the back of the cushion and the seat. This ventilation space can ensure sufficient ventilation even without installing a fan, especially when the cushion is squeezed by the driver and passenger when leaning back, the convection effect of air through the ventilation holes will be stronger; and the fan installation position is set at a position close to the support protrusion, so that even when the driver and passenger lean back, the fan position will not be too close to the seat and the back of the driver and passenger's body, which greatly improves the problems of reduced air output and obstructed air flow, making the ventilation effect stronger, more significant and better; at the same time, by providing a guide groove, the air can be better diffused to the edge after being blocked, effectively improving the ventilation effect, and will not affect the air output and air flow, making the air output more consistent and uniform.

[0023] 2. By setting up various ventilation areas and adjusting the extension direction of the guide grooves, the direction of the wind is well guided and arranged, which can better direct the wind flow to the spine, shoulder blades, ribs, waist and both sides of the ribs and waist of the driver and passengers, so that every part of the back that is prone to sweating can achieve good ventilation effect, which is more in line with ergonomic design.

[0024] 3. Through the hole shape design and length and width design of the ventilation holes in each ventilation area, it can better match each part of the driver and passenger's back that is prone to sweating, further improving the ventilation effect.

[0025] 4. By setting the height difference between the edge part and the backrest part and the lumbar support part, a part of the buffer zone is reserved for leaning pressure. This prevents the vents from being easily blocked when the driver and passengers lean back during riding, effectively enhancing the ventilation effect and making the air flow smoother. That is, the wind passing through the guide groove or other ventilation holes can be evenly distributed in the space formed by the height difference, which greatly improves the defect of fluctuating air volume after the ventilation holes are blocked, so that each ventilation area and guide groove are independent and can echo and assist each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view structural diagram of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the front structure of an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the back structure of an embodiment of the present application.

[0029] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A.

[0030] Figure 5 This is a schematic diagram of the structure of the ventilation cushion according to an embodiment of the present application resting against the back of the human body.

[0031] Explanation of the accompanying drawings: 1. Ventilation hole; 2. Fan installation position; 3. Edge; 4. Arc-shaped guide section; 5. Transition section; 6. Support protrusion; 7. Groove; 8. Guide groove; 9. Reinforcement rib; 10. Elastic support member; 11. Transition connecting member. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a ventilated cushion for a car seat. Figures 1 to 3 The cushion body is provided with a plurality of ventilation holes 1, and a fan installation position 2 is provided in the area of ​​the ventilation holes 1 on the back of the cushion body. The cushion body includes an edge portion 3, a backrest portion, and a lumbar support portion. The edge portion 3 surrounds an area with an opening on the lower side, and the backrest portion and the lumbar support portion are both located in the area surrounded by the edge portion 3; Figure 4 The front of the edge portion 3 is higher than the front of the backrest portion and the lumbar support portion, that is, the height difference between the edge portion 3 and the backrest portion and the lumbar support portion is made to form a step-like structure, which reserves a part of the buffer zone when being pressed, so that the driver and passengers will not easily block the ventilation holes 1 when leaning back during the ride, effectively enhancing the ventilation effect and making the air circulation smoother, that is, the wind passing through the guide groove 8 or other ventilation holes 1 can be evenly distributed in the space formed by the height difference, which greatly improves the defect of the fluctuating air volume after the ventilation hole 1 is blocked, so that each ventilation area and guide groove 8 are independent and can echo and assist each other.

[0034] The edge portion 3 is located on the left and right sides of the lumbar support portion and is provided with a transition section 5. The front of the transition section 5 is inclined toward the rear of the cushion body so that the front of the transition section 5 is connected to the front of the lumbar support portion. This design prevents the edge portion 3 on the left side of the lower part of the body from pressing on the buttocks of the driver and passenger for a long time during driving, thereby improving the comfort of the driver and passenger.

[0035] In this embodiment, a plurality of guide grooves 8 are longitudinally arranged on the backrest portion, and the guide grooves 8 extend from the lower side position of the backrest portion to the upper side position, and extend to the edge of the backrest portion and connect with the edge portion 3. The guide grooves 8 can enable the air to diffuse better to the edge portion 3 after being blocked, effectively improving the ventilation effect, and will not affect the air output and air flow, making the air output more consistent and uniform; the back of the cushion body and the position corresponding to each guide groove 8 protrude toward the rear of the cushion body to form a reinforcing rib 9, and the reinforcing rib 9 extends from the lower side position of the backrest portion to the upper side position, and the end of the reinforcing rib 9 located on the upper side of the backrest portion is not connected to the edge portion 3; the fan mounting position 2 is arranged on the reinforcing rib 9 on the lower side of the backrest portion. In this embodiment, two positioning columns are respectively arranged on the two adjacent reinforcing ribs 9 in the middle, and the fan is installed and fixed by the positioning columns on the two reinforcing ribs 9.

[0036] In this embodiment, back ventilation areas are formed between adjacent guide grooves 8, and ventilation holes 1 are arranged in corresponding back ventilation areas; the back ventilation areas are respectively arranged as the first ventilation area, the second ventilation area, the third ventilation area and the fourth ventilation area from the middle to both sides.

[0037] The guide grooves 8 between the first ventilation area and the second ventilation area extend upward from the lower side of the backrest to the middle position and then tilt upward to form an arc-shaped guide section 4, and the width of the guide grooves 8 between the first ventilation area and the second ventilation area are equal from bottom to top; the guide grooves 8 between the second ventilation area and the third ventilation area extend upward from the lower side of the backrest to the middle position and then tilt upward to form an arc-shaped guide section 4, and the width of the guide grooves 8 between the second ventilation area and the third ventilation area gradually increases from bottom to top; the guide grooves 8 between the third ventilation area and the fourth ventilation area extend from the lower side of the backrest to the upper side and tilt outward to form an arc-shaped guide section 4, and the width of the guide grooves 8 between the third ventilation area and the fourth ventilation area gradually increases from bottom to top.

[0038] In the above, the width of the guide groove 8 between the first ventilation zone and the second ventilation zone is greater than the maximum width of the guide groove 8 between the second ventilation zone and the third ventilation zone; the width of the guide groove 8 between the first ventilation zone and the second ventilation zone is greater than or equal to the maximum width of the guide groove 8 between the third ventilation zone and the fourth ventilation zone.

[0039] In this embodiment, the ventilation holes 1 in the first and fourth ventilation zones are strip-shaped holes of equal width. The ventilation holes 1 in the first ventilation zone are arranged in three groups from bottom to top. The strip-shaped holes in the lower group are all equal in length, the strip-shaped holes in the middle group gradually increase in length from bottom to top, and the strip-shaped holes in the upper group gradually decrease in length from bottom to top. The minimum length of the strip-shaped holes in the middle group is greater than the length of the strip-shaped holes in the lower group, and the maximum length is greater than the length of the strip-shaped holes in the upper group. The length of the strip-shaped holes in the fourth ventilation zone gradually decreases from bottom to top. Meanwhile, the ventilation holes 1 in the second and third ventilation zones are both circular holes, and the apertures of the ventilation holes 1 in the second and third ventilation zones gradually increase from bottom to top.

[0040] In this embodiment, at least one groove 7 is laterally provided on the lumbar support portion, and lumbar support ventilation areas are respectively provided at both ends of the groove 7. The ventilation holes 1 are provided in the corresponding lumbar support ventilation areas. This design allows the air to diffuse better toward the edge portion 3 after being blocked, thereby effectively improving the ventilation effect. Moreover, while increasing the ventilation effect, the groove 7 can also reduce the manufacturing cost to a certain extent, and the manufacturing materials can also be better saved.

[0041] In this embodiment, a support protrusion 6 is provided on the back of the cushion body at a position corresponding to the groove 7, so that a larger ventilation space is formed between the back of the cushion and the seat. This ventilation space can ensure sufficient ventilation even without installing a fan, especially when the cushion is squeezed by the driver and the passenger when leaning back, the convection effect of air through the ventilation holes will be stronger; the fan mounting position 2 is located on the upper side of the support protrusion 6. After installing a fan on the fan mounting position, the ventilation effect is stronger, more significant and better; in this embodiment, there are two grooves 7, and two support protrusions 6 are also provided at corresponding intervals; this allows the fan to be closer to the support protrusion 6 after installation, and the fan mounting position 2 is set at a position close to the support protrusion 6. When the driver and the passenger lean back, the fan position will not be too close to the seat and the back of the driver and the passenger's body, which greatly improves the problems of reduced air output and obstructed air flow.

[0042] To ensure that the back cushion is not easily displaced by the driver's or passenger's sitting posture, the lower end of the back cushion body is connected to an elastic support member 10 that is tilted downward and toward the rear. The elastic support member 10 is connected to the lower end of the back cushion body by an arc-shaped transition connector 11. In this embodiment, the left and right edges of the elastic support member 10 are tilted toward the center, gradually contracting toward the rear. This ensures that the elastic support member can be well inserted into the gap of the car seat, while maintaining the elastic supporting performance of the transition connector 11 and the area of ​​the elastic support member 10 near the transition connector 11, effectively reducing material waste and saving costs.

[0043] The design principle of this embodiment is: by setting up each ventilation area and adjusting the extension direction of the guide groove 8, the wind flow is well guided and arranged, and the wind flow can be better directed to the spine, shoulder blades, ribs, waist and both sides of the ribs and waist of the driver and passenger's back, so that every part of the back that is prone to sweating can achieve a good ventilation effect, which is more in line with ergonomic design. Figure 5 Generally, when the human back is in a hot environment, the parts that sweat more are the position between the cervical vertebrae and the waist and the middle position of the waist, especially the middle position near the cervical vertebra, followed by the parts near the shoulder blades and the parts near the ribs, including the armpits. The design scheme in the embodiment of the present application is to design the arrangement and size of the ventilation holes 1 according to the sweating situation of each part. For example, the first ventilation area corresponds to the position between the cervical vertebrae and the waist and the middle position of the waist, the second ventilation area corresponds to the parts near the shoulder blades. During ventilation, a small amount of air can also be supplied to the shoulders. The third area supplies air to the parts near the ribs and the armpits. At the same time, due to the arc design of the cushion body, a small amount of air can also be supplied to the front chest. The fourth area supplies air to the parts on both sides of the waist and a small amount of air to the abdomen of the human body. In addition, the ventilation holes 1 in the lumbar ventilation area assist in supplying air to the parts on both sides of the waist, and at the same time, they can also assist in supplying a small amount of air to the abdomen of the human body.

[0044] In addition, the hole shape design and length and width design of the ventilation holes 1 in each ventilation area, such as the lower ventilation holes in the first, second and third ventilation areas, are all holes with relatively small hole areas. This design can effectively restrain the air volume near the waist and the parts close to the waist position from being too large, and the air volume can be blown out moderately, while the positions farther away from this part, such as the fourth ventilation area, the lumbar ventilation area, and the middle and upper ventilation holes of the first, second and third ventilation areas are relatively larger. In this way, even if the air volume is transported a little far, the air volume can still be guaranteed, that is, the uniformity of the air volume of each part is guaranteed as a whole, avoiding sudden changes in the air volume, and avoiding uneven air volume that causes some parts of the back to be too cold, some parts cannot be blown by cold air, or the air volume is very little. Therefore, the design of the hole shape and hole size can better match each part of the driver's back that is prone to sweating, with high air volume uniformity, and can further improve the ventilation effect.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A ventilated cushion for a car seat, comprising a cushion body, a plurality of ventilation holes (1) being provided on the cushion body, a fan mounting position (2) being provided on the back of the cushion body in the region of the ventilation holes (1), and characterized in that: The cushion body comprises an edge portion (3), a backrest portion, and a lumbar support portion. The backrest portion and the lumbar support portion are both located in the area surrounded by the edge portion (3). The backrest portion is longitudinally provided with a plurality of guide grooves (8), and a backrest ventilation area is formed between adjacent guide grooves (8); the lumbar support portion is transversely provided with at least one groove (7), and lumbar ventilation areas are respectively provided at both ends of the groove (7); a support protrusion (6) is provided at a position corresponding to the groove (7) on the back of the cushion body, and a fan installation position (2) is located at an upper side position of the support protrusion (6); ventilation holes (1) are all provided in the corresponding backrest ventilation area and lumbar ventilation area; the guide grooves (8) are all extended from the lower side position of the backrest portion to the upper side position, and extend to the edge of the backrest portion and connect with the edge portion (3); the backrest ventilation area is respectively provided as the first ventilation area, the second ventilation area, the third ventilation area and the fourth ventilation area from the middle to the two sides, and the guide grooves between the first ventilation area and the second ventilation area are respectively provided. The flow grooves (8) all extend upward from the lower side of the backrest to the middle position and then tilt outward and upward to form an arc-shaped guide section (4); the flow grooves (8) between the second ventilation area and the third ventilation area all extend upward from the lower side of the backrest to the middle position and then tilt outward and upward to form an arc-shaped guide section (4); the flow grooves (8) between the third ventilation area and the fourth ventilation area extend from the lower side of the backrest to the upper side and tilt outward to form an arc-shaped guide section (4); the width of the flow grooves (8) between the third ventilation area and the fourth ventilation area gradually increases from bottom to top; the width of the flow grooves (8) between the first ventilation area and the second ventilation area is greater than the maximum width of the flow grooves (8) between the second ventilation area and the third ventilation area; the width of the flow grooves (8) between the first ventilation area and the second ventilation area is greater than or equal to the maximum width of the flow grooves (8) between the third ventilation area and the fourth ventilation area.

2. The ventilated cushion for a car seat according to claim 1, characterized in that: The width of the guide groove (8) between the first ventilation area and the second ventilation area is equal from bottom to top.

3. The ventilated cushion for a car seat according to claim 1, characterized in that: The width of the guide groove (8) between the second ventilation area and the third ventilation area gradually increases from bottom to top.

4. A ventilated cushion for a car seat according to any one of claims 1 to 3, characterized in that: The ventilation holes (1) in the first ventilation zone and the fourth ventilation zone are strip holes of equal width; the ventilation holes (1) in the first ventilation zone are arranged in three groups from bottom to top, the lengths of the strip holes in the group located on the lower side are all equal, the lengths of the strip holes in the group located in the middle gradually increase from bottom to top, and the lengths of the strip holes in the group located in the upper side gradually decrease from bottom to top; the minimum length of the strip holes in the group in the middle is greater than the length of the strip holes in the group located in the lower side, and the maximum length is greater than the length of the strip holes in the group located in the upper side; the lengths of the strip holes in the fourth ventilation zone gradually decrease from bottom to top.

5. A ventilated cushion for a car seat according to any one of claims 1 to 3, characterized in that: The ventilation holes (1) in the second ventilation zone and the third ventilation zone are both circular holes, and the apertures of the ventilation holes (1) in the second ventilation zone and the third ventilation zone gradually increase from bottom to top.

6. A ventilated cushion for a car seat according to any one of claims 1 to 3, characterized in that: The front faces of the edge portions (3) are higher than the front faces of the backrest portion and the waistrest portion, and transition sections (5) are provided at the positions of the edge portions (3) on the left and right sides of the waistrest portion, and the front faces of the transition sections (5) are inclined toward the rear of the cushion body so that the front faces of the transition sections (5) are connected to the front faces of the waistrest portion.

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