An automobile electric seat and a control method thereof

Abstract

This invention provides an electric car seat, comprising a seat body and two sliding mechanisms. The two sliding mechanisms are symmetrically arranged on both sides of the bottom of the seat body. During operation, when the car rear-ends another vehicle and comes to a sudden stop, and it is determined that the square disc airbag needs to deploy, the car control system controls the electric spring pin 241 to actuate. This pushes the plate 242 to pull each limiting post 243 out of its corresponding limiting groove, releasing the sliding block from its position within the sliding track and thus releasing the locking of the seat body. The sliding block then moves the seat body forward along the sliding track. The sliding block contacts the buffer assembly at the front end of the sliding track. The second compression spring and elastic buffer post within the buffer assembly buffer and depressurize the sliding block, reducing the impact force of the collision and providing more time for the airbag to deploy, significantly improving the safety performance of the electric car seat.

Description

Technical Field

[0001] This invention relates to the field of electric car seats, and in particular to electric car seats and their control methods. Background Technology

[0002] Car seats can be categorized by shape into split seats and bench seats. They can also be categorized by function into fixed seats, removable seats, and adjustable seats. Furthermore, they can be categorized by the number of passengers, into single seats, double seats, and multi-person seats. Based on performance requirements, car seats have evolved from early fixed seats to multi-functional, power-adjustable seats, including air-cushioned seats, electric seats, stereo seats, and finally, electronically adjustable seats. Finally, car seats can be categorized by material, such as leather seats and cloth seats.

[0003] However, in a rear-end collision, the driver's head will hit the steering wheel due to inertia. Because of the short time, the airbags on the square steering wheel often fail to deploy in time, leading to increased injury to the driver and poor safety performance. Summary of the Invention

[0004] Therefore, it is necessary to provide an electric car seat and its control method to address the technical problem of poor safety performance of traditional car seats.

[0005] An electric car seat includes: a seat body and two sliding mechanisms; The two sliding mechanisms are symmetrically arranged on both sides of the bottom of the seat body; each sliding mechanism includes a sliding block, a sliding track, a damping component, and a locking component. The sliding block is connected to the bottom of the seat body, and a damping sliding cavity is provided inside the sliding block; a plurality of sliding perforations are evenly provided in a row on one side wall of the sliding block, and each of the sliding perforations is connected to the damping sliding cavity; a plurality of limiting grooves are evenly provided in a row on the side wall of the sliding block away from the sliding perforations. The sliding track is connected to the car floor; the sliding track has a sliding channel, the sliding channel is adapted to the sliding block, the sliding block is inserted into the sliding channel and slidably connected to the sliding track; the side wall of the sliding channel near the sliding through hole has a number of hemispherical damping grooves evenly arranged in a row; the side wall of the sliding channel near the limiting groove has a number of through holes evenly arranged in a row. The damping assembly includes a sliding plate, a plurality of first compression springs, a limiting baffle, and a plurality of damping pillars. The sliding plate is adapted to the damping sliding cavity, and is inserted into the damping sliding cavity and slidably connected to the sliding block. The side of the sliding plate facing away from the limiting groove is elastically connected to one side wall of the damping sliding cavity through each of the first compression springs. Each of the first compression springs is evenly arranged at both ends of the sliding plate. The limiting baffle is connected to the middle area of ​​one side wall of the damping sliding cavity near the limiting groove. Each of the damping pillars is evenly arranged in a row on the side of the sliding plate facing away from the first compression springs. The damping pillar is adapted to the sliding through hole. Each damping pillar is correspondingly inserted into one of the sliding through holes and slidably connected to the sliding block. The end of the damping pillar away from the sliding plate is a hemispherical damping block 235, which is adapted to the hemispherical damping groove. Each hemispherical damping block 235 can be correspondingly inserted into one of the hemispherical damping grooves. The locking assembly includes an electric spring pin 241, a push plate 242, and a plurality of limiting posts 243. The electric spring pin 241 is connected to the vehicle floor, and the drive end of the electric spring pin 241 is connected to the push plate 242. The limiting posts 243 are arranged in a row on the side of the push plate 242 facing away from the electric spring pin 241. The limiting groove and the through hole are adapted to the limiting posts 243. Each limiting post 243 can be inserted into a corresponding through hole and slidably connected to the sliding track. Each limiting post 243 can be inserted into a corresponding limiting groove to fix the sliding block in the sliding track.

[0006] In one embodiment, the electric car seat further includes a cushioning assembly disposed at the front end of the sliding track; the cushioning assembly includes a second compression spring, a spring-loaded cushioning post, and a receiving slide plate; the receiving slide plate is adapted to the sliding track, inserted into the sliding track, and slidably connected to the sliding track; the spring-loaded cushioning post is connected to the inner wall of the front end of the sliding track; the second compression spring is sleeved on the spring-loaded cushioning post; the receiving slide plate is elastically connected to the inner wall of the front end of the sliding track through the second compression spring.

[0007] In one embodiment, the cross-section of the sliding track is convex.

[0008] In one embodiment, the limiting baffle and the sliding track are integrally formed.

[0009] In one embodiment, the damping column is a cylindrical structure.

[0010] In one embodiment, the hemispherical damping block 235 is integrally formed with the damping column.

[0011] In one embodiment, each of the damping columns is integrally formed with the sliding plate.

[0012] In one embodiment, the limiting post 243 is a cylindrical structure.

[0013] In one embodiment, each of the limiting posts 243 is integrally formed with the push plate 242.

[0014] A method for controlling an electric car seat, applicable to controlling the electric car seat described in any of the above embodiments; comprising the following steps: Obtain the safe sliding distance L1 between the slider and the sliding track; Obtain the coefficient of friction μ between the sliding block and the sliding track; The initial vehicle speed V is obtained as the vehicle's speed before the collision. Based on the initial vehicle speed V and the friction coefficient μ, the distance L0 required for the sliding block to go from high speed to stop in the sliding track is calculated as L0 = V. 2 / 2μg; Determine whether L0 is greater than L1. If L0 is greater than L1, control the electric spring pin 241 to release the seat body from the locked state; otherwise, control the electric spring pin 241 to maintain the locked state of the seat body.

[0015] During operation, when the aforementioned electric car seat rear-ends another vehicle and comes to a sudden stop, determining that the square disc airbag needs to deploy, the vehicle control system controls the electric spring pin 241 to actuate. This pushes the plate 242 to pull each limiting post 243 out of its corresponding limiting groove, releasing the sliding block from its position within the sliding track and thus releasing the locking of the seat body. The sliding block then moves the seat body forward along the sliding track. The sliding block contacts the buffer assembly at the front end of the track. The second compression spring and elastic buffer post within the buffer assembly cushion and depress the sliding block, reducing the impact force of the collision and providing more time for the airbag to deploy, significantly improving the safety performance of the electric car seat. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an electric car seat in one embodiment; Figure 2 This is a schematic diagram of the sliding mechanism in one embodiment; Figure 3 for Figure 2 A partially enlarged schematic diagram of the sliding mechanism in the embodiment; Figure 4 for Figure 2 A partially enlarged schematic diagram of the sliding mechanism in the embodiment; Figure 5 This is a schematic diagram of the structure of the seat cushion and backrest surface on the seat body in one embodiment; Figure 6 for Figure 5 A partially enlarged structural diagram of the seat cushion and backrest surface on the seat body in the embodiment; Figure 7 This is a schematic diagram of the structure of the cold air diaphragm plate and support frame in one embodiment. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 present invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Please refer to the following: Figures 1 to 3 The present invention provides an electric car seat 10, comprising: a seat body 100 and two sliding mechanisms 200.

[0023] Two sliding mechanisms 200 are symmetrically arranged on both sides of the bottom of the seat body 100. The sliding mechanism 200 includes a sliding block 210, a sliding track 220, a damping component 230, and a locking component 240.

[0024] The sliding block 210 is connected to the bottom of the seat body 100, and a damping sliding cavity 201 is formed inside the sliding block 210. A plurality of sliding through holes 202 are evenly formed in a row on one side wall of the sliding block 210, and each sliding through hole 202 communicates with the damping sliding cavity 201. A plurality of limiting grooves 203 are evenly formed in a row on the side wall of the sliding block 210 away from the sliding through holes 202.

[0025] The sliding track 220 is connected to the car floor. The sliding track 220 has a sliding channel 204, which is adapted to a sliding block 210. The sliding block 210 is inserted into the sliding channel 204 and slidably connected to the sliding track 220. In this embodiment, the sliding channel 204 has a convex cross-section. A plurality of hemispherical damping grooves 205 are evenly arranged in a row on the sidewall of the sliding channel 204 near the sliding through hole 202. A plurality of through holes 206 are evenly arranged in a row on the sidewall of the sliding channel 204 near the limiting groove 203.

[0026] The damping assembly 230 includes a sliding plate 231, a plurality of first compression springs 232, a limiting baffle 233, and a plurality of damping posts 234. The sliding plate 231 is adapted to the damping sliding cavity 201, and is inserted into the damping sliding cavity 201 and slidably connected to the sliding block 210. The side of the sliding plate 231 facing away from the limiting groove 203 is elastically connected to one side wall of the damping sliding cavity 201 through each of the first compression springs 232. Each of the first compression springs 232 is evenly distributed at both ends of the sliding plate 231. The limiting baffle 233 is connected to the middle region of one side wall of the damping sliding cavity 201 near the limiting groove 203. In this embodiment, the limiting baffle 233 and the sliding track 220 are integrally formed. Each damping post 234 is evenly distributed in a row on the side of the sliding plate 231 facing away from the first compression springs 232. Further, in this embodiment, each damping post 234 is integrally formed with the sliding plate 231. The damping post 234 is adapted to the sliding perforation 202. Each damping post 234 is inserted into a corresponding sliding perforation 202 and slidably connected to the sliding block 210. In this embodiment, the damping post 234 has a cylindrical structure. The end of the damping post 234 away from the sliding plate 231 is a hemispherical damping block 235. In this embodiment, the hemispherical damping block 235 and the damping post 234 are integrally formed. The hemispherical damping block 235 is adapted to the hemispherical damping groove 205, and each hemispherical damping block 235 can be inserted into the hemispherical damping groove 205.

[0027] The locking assembly 240 includes an electric spring pin 241, a push plate 242, and a plurality of limiting posts 243. The electric spring pin 241 is connected to the vehicle floor, and the drive end of the electric spring pin 241 is connected to the push plate 242. The limiting posts 243 are evenly arranged in a row on the side of the push plate 242 facing away from the electric spring pin 241. In this embodiment, each limiting post 243 is integrally formed with the push plate 242. The limiting groove 203 and the through hole 206 are adapted to the limiting post 243, and each limiting post 243 can be inserted into a corresponding through hole 206 and slidably connected to the sliding rail 220. In this embodiment, the limiting post 243 has a cylindrical structure. Each limiting post 243 can be inserted into a corresponding limiting groove 203 to fix the sliding block 210 in the sliding rail 220.

[0028] Please refer to the following: Figure 2 and Figure 4 In one embodiment, the electric car seat 10 further includes a buffer assembly 250, which is disposed at the front end of the slide rail 204. The buffer assembly 250 includes a second compression spring 251, a spring-loaded buffer post 252, and a receiving slide plate 253. The receiving slide plate 253 is adapted to the slide rail 204, inserted into the slide rail 204, and slidably connected to the slide track 220. The spring-loaded buffer post 252 is connected to the inner wall of the front end of the slide rail 204. The second compression spring 251 is sleeved on the spring-loaded buffer post 252. The receiving slide plate 253 is elastically connected to the inner wall of the front end of the slide rail 204 through the second compression spring 251.

[0029] During operation, when the aforementioned electric car seat 10 rear-ends another vehicle and comes to a sudden stop, determining that the square disc airbag needs to deploy, the vehicle control system controls the electric spring pin 241 to actuate. This pushes the plate 242 to pull each limiting post 243 out of its corresponding limiting groove 203, releasing the sliding block 210 from the sliding track 220 and thus releasing the locking state of the seat body 100. The sliding block 210 then moves the seat body 100 forward along the sliding track 220. The sliding block 210 contacts the buffer assembly 250 at the front end of the sliding track 204. The second compression spring 251 and the elastic buffer post 252 within the buffer assembly 250 buffer and depress the sliding block 210, reducing the impact force of the collision and providing more time for the airbag to deploy, thus greatly improving the safety performance of the electric car seat.

[0030] Please refer to the following: Figure 1 , Figure 5 and Figure 6 In order to help users cool down quickly in hot weather, in one embodiment, a ventilation disc 110 is provided at the bottom of the seat cushion and backrest on the seat body 100, and ventilation holes 101 are opened in the leather layer 120 of the seat cushion and backrest on the seat body 100. A ventilation chamber is opened inside the ventilation disc 110, and several ventilation holes 102 are evenly opened on the top of the ventilation disc 110. The ventilation disc 110 is connected to the output end of the vehicle's air conditioning system through an external ventilation pipe. Cool air is discharged from the ventilation holes 101 through the ventilation holes 102 on the ventilation disc 110 and the sponge inside the seat cushion and backrest to quickly cool the user's body. This helps users cool down quickly in hot weather.

[0031] Please refer to the following: Figure 5 , Figure 6 and Figure 7To ensure ventilation through the vents 101 while preventing dirt from entering the seat cushion and backrest and contaminating the internal sponge, in one embodiment, a soft silicone membrane 130 is provided inside the seat cushion and backrest, closely adhering to the leather layer 120. The soft silicone membrane 130 has a plurality of evenly distributed cold air holes 103, each corresponding to a vent 101. Within each cold air hole 103, the soft silicone membrane 130 contains three 120-degree fan-shaped diaphragms 121, which abut against each other to form a cold air diaphragm plate. When the vent plate 110 outputs cold air, the three fan-shaped diaphragms 121 bend and deform due to the wind force, opening the cold air hole 103 and allowing cold air to pass through smoothly. When no cold air passes through, the three fan-shaped diaphragms 121 abut against each other to form a cold air diaphragm plate, closing the cold air hole 103. This is to prevent stains from entering the seat cushion and backrest through the ventilation holes 101 and contaminating the sponge inside the seat cushion and backrest.

[0032] Please refer to the following: Figure 5 , Figure 6 and Figure 7 To increase the operational stability of the cold air diaphragm plate, a support frame 140 is provided in each cold air hole 103 of the soft silicone membrane 130. The support frame 140 is located below the cold air diaphragm plate and includes three support rods 141 and a support plate 142. The three support rods 141 are evenly arranged in a circle around the support plate 142. The end of each support rod 141 away from the support plate 142 is connected to the inner wall of the cold air hole 103. Each support rod 141 corresponds to and abuts against the middle area of ​​a fan-shaped diaphragm 121 to prevent the fan-shaped diaphragm 121 from bending and deforming in the opposite direction. In this way, the support frame 140 increases the operational stability of the cold air diaphragm plate.

[0033] The present invention also provides a method for controlling an electric car seat, applicable to controlling the electric car seat 10 in any of the above embodiments; comprising the following steps: Obtain the safe sliding distance L1 between the sliding block 210 and the sliding track 220.

[0034] Obtain the coefficient of friction μ between the sliding block 210 and the sliding track 220.

[0035] The initial vehicle speed V is obtained as the vehicle's speed before the collision.

[0036] Based on the initial vehicle speed V and the friction coefficient μ, the distance L0 required for the sliding block 210 to go from high speed to stop in the sliding track 220 is calculated as L0 = V. 2 / 2μg.

[0037] Determine whether L0 is greater than L1. If L0 is greater than L1, control the electric spring pin 241 to release the seat body 100 from the locked state; otherwise, control the electric spring pin 241 to maintain the locked state of the seat body 100.

[0038] It should be noted that if L0 is greater than L1, it indicates that the impact force of the collision is severe, and the seat body 100 needs to be unlocked to ensure that the buffer component 250 effectively buffers and reduces the impact force of the collision.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An electric car seat, characterized in that, include: The seat body and two sliding mechanisms; The two sliding mechanisms are symmetrically arranged on both sides of the bottom of the seat body; each sliding mechanism includes a sliding block, a sliding track, a damping component, and a locking component. The sliding block is connected to the bottom of the seat body, and a damping sliding cavity is provided inside the sliding block; a plurality of sliding perforations are evenly provided in a row on one side wall of the sliding block, and each of the sliding perforations is connected to the damping sliding cavity; a plurality of limiting grooves are evenly provided in a row on the side wall of the sliding block away from the sliding perforations. The sliding track is connected to the car floor; the sliding track has a sliding channel, the sliding channel is adapted to the sliding block, the sliding block is inserted into the sliding channel and slidably connected to the sliding track; the side wall of the sliding channel near the sliding through hole has a number of hemispherical damping grooves evenly arranged in a row; the side wall of the sliding channel near the limiting groove has a number of through holes evenly arranged in a row. The damping assembly includes a sliding plate, a plurality of first compression springs, a limiting baffle, and a plurality of damping pillars. The sliding plate is adapted to the damping sliding cavity, and is inserted into the damping sliding cavity and slidably connected to the sliding block. The side of the sliding plate facing away from the limiting groove is elastically connected to one side wall of the damping sliding cavity through each of the first compression springs. Each of the first compression springs is evenly arranged at both ends of the sliding plate. The limiting baffle is connected to the middle area of ​​one side wall of the damping sliding cavity near the limiting groove. Each of the damping pillars is evenly arranged in a row on the side of the sliding plate facing away from the first compression springs. The damping pillar is adapted to the sliding through hole. Each damping pillar is correspondingly inserted into one of the sliding through holes and slidably connected to the sliding block. The end of the damping pillar away from the sliding plate is a hemispherical damping block 235, which is adapted to the hemispherical damping groove. Each hemispherical damping block 235 can be correspondingly inserted into one of the hemispherical damping grooves. The locking assembly includes an electric spring pin 241, a push plate 242, and a plurality of limiting posts 243. The electric spring pin 241 is connected to the vehicle floor, and the drive end of the electric spring pin 241 is connected to the push plate 242. The limiting posts 243 are arranged in a row on the side of the push plate 242 facing away from the electric spring pin 241. The limiting groove and the through hole are adapted to the limiting posts 243. Each limiting post 243 can be inserted into a corresponding through hole and slidably connected to the sliding track. Each limiting post 243 can be inserted into a corresponding limiting groove to fix the sliding block in the sliding track.

2. The electric car seat according to claim 1, characterized in that, The electric car seat also includes a buffer assembly disposed at the front end of the sliding track; the buffer assembly includes a second compression spring, a spring-loaded buffer post, and a receiving slide plate; the receiving slide plate is adapted to the sliding track, inserted into the sliding track, and slidably connected to the sliding track; the spring-loaded buffer post is connected to the inner wall of the front end of the sliding track; the second compression spring is sleeved on the spring-loaded buffer post; the receiving slide plate is elastically connected to the inner wall of the front end of the sliding track through the second compression spring.

3. The electric car seat according to claim 1, characterized in that, The cross-section of the sliding track is convex.

4. The electric car seat according to claim 1, characterized in that, The limiting baffle and the sliding track are integrally formed.

5. The electric car seat according to claim 1, characterized in that, The damping column has a cylindrical structure.

6. The electric car seat according to claim 1, characterized in that, The hemispherical damping block 235 is integrally formed with the damping column.

7. The electric car seat according to claim 1, characterized in that, Each of the damping columns is integrally formed with the sliding plate.

8. The electric car seat according to claim 1, characterized in that, The limiting post 243 has a cylindrical structure.

9. The electric car seat according to claim 1, characterized in that, Each of the limiting posts 243 is integrally formed with the push plate 242.

10. A method for controlling an electric car seat, characterized in that, Controlling the electric car seat according to any one of claims 1 to 9 includes the following steps: Obtain the safe sliding distance L1 between the slider and the sliding track; Obtain the coefficient of friction μ between the sliding block and the sliding track; The initial vehicle speed V is obtained as the vehicle's speed before the collision. Based on the initial vehicle speed V and the friction coefficient μ, the distance L0 required for the sliding block to go from high speed to stop in the sliding track is calculated as L0 = V. 2 / 2μg; Determine whether L0 is greater than L1. If L0 is greater than L1, control the electric spring pin 241 to release the seat body from the locked state; otherwise, control the electric spring pin 241 to maintain the locked state of the seat body.

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