Automobile seat electric adjusting sliding rail with intelligent speed changing function and automobile seat

Abstract

The utility model discloses an automobile seat electric adjusting sliding rail with an intelligent speed changing function and an automobile seat, and belongs to the technical field of automobile parts. The lower sliding rail is fixed with a compartment bottom plate of the automobile, and a lower sliding rail cavity with an upper opening is formed in the length direction of the lower sliding rail; the upper sliding rail and the lower sliding rail form a sliding pair; the chair seat and seat basin connecting plate is fixedly connected with the upper sliding rail; the screw rod is arranged in the lower sliding rail cavity; the intelligent speed change mechanism is characterized in that the intelligent speed change mechanism comprises a primary speed reduction device, a speed increasing device and a final speed reduction device, the primary speed reduction device is fixed to the front side of the middle of the seat basin connecting plate and is in transmission connection with the speed increasing device, and the speed increasing device is fixed to the rear side of the middle of the seat basin connecting plate at the position corresponding to the primary speed reduction device; and the final-stage speed reduction device is in transmission fit with the screw rod and is connected with the upper sliding rail. The method has the advantages that smoothness and stability in the adjusting process are embodied, and abrupt feeling and discomfort of a passenger are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, specifically relates to a kind of electrically adjusted slide rail of automobile seat with intelligent speed change function, and it is also related to its automobile seat. BACKGROUND

[0002] The above-mentioned intelligent speed change is relative or different from the traditional single adjustment speed design mode, and the so-called single adjustment speed is that the dynamic slide rail (also called "upper slide rail" or "inner slide rail") of the structural system driven by the reduction gearbox controlled by the electronic control unit (ECU) of the vehicle and constituting the sliding pair with the static slide rail (also called "lower slide rail" or "outer slide rail") moves forward or reversely on the screw rod arranged in the static slide rail cavity. For example, forward movement is driven by the chair seat basin connecting plate connected with the chair seat basin, and the chair seat basin and its chair seat move forward correspondingly, and vice versa. The intelligent speed change is essentially different from the single adjustment speed design of the slide rail, which has various requirements based on the occupant, i.e. passenger, and the current position of the seat, the running state of the vehicle, etc. The optimized moving speed of the dynamic slide rail driven by the chair seat is calculated by algorithm.

[0003] In summary, the intelligent speed change has the following advantages, which are not limited to and are increasingly recognized by people: improving the comfort of the occupant, as smooth deceleration and acceleration can be achieved during adjustment, avoiding the abrupt feeling and discomfort of the slide rail during adjustment in the traditional single adjustment mode, and meeting the riding experience of the passenger; accurate control, such as precise and reasonable deceleration, acceleration and deceleration control, to keep the dynamic slide rail stable during sliding or moving, reduce vibration and noise caused by rapid movement, and ensure the comfort and stability of the occupant; adapt to different needs, as the seat can be quickly adjusted according to different use scenarios, such as quickly adjusting the position in emergency or providing more comfortable riding experience during long driving; beneficial to protect the motor, such as avoiding large load on the motor and causing the electrical shaft to loosen or even damage the motor shaft, to ensure the service life of the motor; good space adaptability, such as being able to complete large displacement in relatively small space; embody intelligent application, as modern cars pay more and more attention to intelligence and automation, so as to improve the comfort and user experience of the vehicle as a whole.

[0004] In the disclosed Chinese and foreign patent documents, there are not a few technical information related to the seat slide rail, such as: CN215204537U (a high-strength independent electric slide rail), CN116022040B (an electric slide rail driving mechanism for vehicle seat), CN113320450A (an electric slide rail of a car seat), CN118082637A (a new type of horizontal adjustment transmission vehicle seat slide rail assembly), US2009 / 0114793A1 (an electric slide rail for a car seat), and US5150872A (an electric slide rail for a car seat), etc.

[0005] Not limited to the above-mentioned patents are all within the scope of the aforementioned single adjustment speed design mode, that is, by the above-mentioned motor driving reduction box or worm gear box following the screw displacement, so that the reduction box or worm gear box drives the upper slide rail together with the seat pan fixedly connected with the seat pan connecting plate to move, and finally makes the seat corresponding to the seat pan move. Therefore, it is necessary to design rationally from the idea of putting theory into practice, and the technical solution to be introduced below is produced in this background. Practical new type content

[0006] The task of the present utility model is to provide an electric adjustment slide rail for a car seat with intelligent speed change function, which can help to reflect the smoothness and stability in the adjustment process, avoid giving the occupant a sudden feeling and discomfort, be beneficial to the combination of deceleration and acceleration, significantly reduce the vibration and noise caused by rapid movement during the sliding process of the movable slide rail, and ensure the comfort and stability of the occupant, be convenient for meeting different needs, make the occupant adjust quickly according to different scenes and obtain more comfortable riding experience, be beneficial to preventing the motor shaft from loosening and even damaging the motor due to the large load bearing of the motor, guarantee the service life of the motor, help to reflect good adaptability to space, complete larger displacement in relatively small space, be good at playing the ideal intelligent and automatic effect, and overall improve the science and technology and user experience of the vehicle.

[0007] Another task of the present utility model is to provide a car seat which can fully realize the technical effects of the electric adjustment slide rail for a car seat with intelligent speed change function.

[0008] The utility model discloses a task is thus completed, a kind of electrically adjusted slide rail of automobile seat with intelligent speed change function, including lower slide rail, the lower slide rail is fixed with the compartment floor of car in use state, and there is a lower slide rail cavity with upper open mouth in the length direction of the lower slide rail;Upper slide rail, the upper slide rail forms sliding pair with the lower slide rail;Chair seat basin connecting plate, the chair seat basin connecting plate is fixedly connected with the upper slide rail;Screw rod, the screw rod is set in the lower slide rail cavity in the position corresponding to the length direction below the upper slide rail;Intelligent speed change mechanism, characterized in that: the intelligent speed change mechanism includes primary speed reducer, speed increasing device and final stage speed reducer, primary speed reducer is fixed with the length direction middle part front side of the chair seat basin connecting plate, and is transmissionally connected with speed increasing device, and the speed increasing device is fixed with the length direction middle part rear side of chair seat basin connecting plate in the position corresponding to primary speed reducer, and is transmissionally connected with final stage speed reducer, and the final stage speed reducer is transmissionally cooperated with the screw rod and is connected with the upper slide rail by left and right movement.

[0009] In one specific embodiment of the utility model, the length direction middle part of the chair seat basin connecting plate is fixed with a primary speed reducer fixed mounting plate, the lower part of the primary speed reducer fixed mounting plate is folded and unfolded in a horizontal state to a speed increasing device fixed mounting plate, the primary speed reducer is fixed with the front side of the primary speed reducer fixed mounting plate, and the speed increasing device is fixed with the speed increasing device fixed mounting plate, and the primary speed reducer is transmissionally connected with the speed increasing device by passing through the primary speed reducer fixed mounting plate, and the speed increasing device is transmissionally connected with the final stage speed reducer that is transmissionally cooperated with the screw rod by left and right movement after sequentially passing through the speed increasing device fixed mounting plate and the upper slide rail downwards.

[0010] In another specific embodiment of the utility model, the primary speed reducer includes a motor, a reduction box and a spline shaft, the motor is set in a horizontal state and is drivingly connected with the reduction box power input shaft at the position corresponding to the right side of the reduction box, and is fixed with the primary speed reducer fixed mounting plate through the reduction box, the rear end of the spline shaft is drivingly matched with the reduction box last stage power output shaft spline hole of the reduction box last stage power output shaft, the rear end of the spline shaft extends to the rear side of the reduction box after passing through the reduction box last stage power output shaft spline hole and then extends to the rear side of the primary speed reducer fixed mounting plate and is drivingly connected with the speed increasing device, the front end of the spline shaft is drivingly connected with the speed increasing device fixed mounting plate on the adjacent rear side of the corresponding chair seat basin connecting plate; a worm gear box support cavity is formed in the middle of the length direction of the upper slide rail, and a worm shaft allowance hole is formed at the position corresponding to the middle side of the worm gear box support cavity, the speed increasing device is drivingly connected with the last stage speed reducer after passing through the speed increasing device fixed mounting plate, so that the last stage speed reducer moves left and right along the screw rod.

[0011] In another specific embodiment of the utility model, a spline shaft allowance hole is formed in the primary speed reducer fixed mounting plate, and a worm shaft sleeve matching hole is formed in the speed increasing device fixed mounting plate; the speed increasing device includes a speed increasing worm gear box, a speed increasing worm gear box cover, a speed increasing worm wheel, a speed increasing worm and a worm shaft sleeve, the lower part of the speed increasing worm gear box is formed with a speed increasing worm gear box seat, the speed increasing worm gear box seat is fixed with the upper side of the speed increasing device fixed mounting plate through a speed increasing worm gear box seat fixing screw, the worm shaft sleeve is embedded with the worm shaft sleeve matching hole, and a speed increasing worm shaft through hole is formed in the middle of the worm shaft sleeve from the upper part to the lower part, the speed increasing worm wheel and the speed increasing worm are arranged in the speed increasing worm gear box and are meshed with each other, wherein the lower end of the speed increasing worm wheel shaft of the speed increasing worm wheel extends below the speed increasing worm gear box, is drivingly matched with the last stage speed reducer after passing through the speed increasing worm shaft through hole, and the upper end is inserted into the box cover shaft hole formed in the speed increasing worm gear box cover, the speed increasing worm shaft spline hole of the speed increasing worm shaft of the speed increasing worm is corresponding to the reduction box last stage power output shaft spline hole, the rear end of the spline shaft is drivingly matched with the speed increasing worm shaft after passing through the spline shaft allowance hole, the speed increasing worm gear box cover is fixed with the worm gear box fixing screw hole formed in the speed increasing worm gear box through a speed increasing worm gear box cover fixing screw; a pair of reduction box fixing studs are arranged on the front side of the primary speed reducer fixed mounting plate, and the reduction box is fixed with the pair of reduction box fixing studs through a pair of reduction box fixing screws.

[0012] In still another specific embodiment of the utility model, the final stage reduction gear device includes a final stage worm gear reduction box support and a final stage worm gear reduction box, the upper portion of final stage worm gear reduction box support is embedded in the upper slide rail at the position corresponding to the worm gear box support cavity, the final stage worm gear reduction box is arranged on the final stage worm gear reduction box support and is driven by the final stage worm gear reduction box support together with the final stage worm gear reduction box and the screw, the lower end of the speed increasing worm gear shaft is in transmission cooperation with the final stage worm gear shaft hole of the final stage worm gear of the final stage worm gear reduction box after passing through the speed increasing worm gear shaft through hole and the worm gear shaft allowance hole, the final stage worm gear is in transmission cooperation with the final stage worm gear reduction box worm gear in the final stage worm gear reduction box, and the final stage worm gear reduction box worm gear is in transmission cooperation with the screw.

[0013] In still another specific embodiment of the utility model, the motor is a direct current brushless motor with forward and reverse rotation functions.

[0014] In a further specific embodiment of the utility model, the lower slide rail cavity is composed of the lower slide rail bottom plate, the lower slide rail front flap and the lower slide rail rear flap, the lower slide rail front flap is composed of the upper folding of the front side of the length direction of the lower slide rail bottom plate, and the upper part of the length direction of the lower slide rail front flap is folded to the direction of the lower slide rail cavity and is composed of a lower slide rail front flap matching groove, the lower slide rail rear flap is composed of the upper folding of the rear side of the length direction of the lower slide rail bottom plate, and the upper part of the length direction of the lower slide rail rear flap is folded to the direction of the lower slide rail cavity and is composed of a lower slide rail rear flap matching groove, the lower slide rail front flap and the lower slide rail rear flap correspond to each other, and the upper slide rail front flap matching groove and the upper slide rail rear flap matching groove correspond to each other and the cross section shape is n-shaped; the front side of the length direction of the upper slide rail is folded upwards and is composed of an upper slide rail front flap groove with U-shaped cross section shape and matched with the upper slide rail front flap matching groove, the rear side of the length direction of the upper slide rail is folded upwards and is composed of an upper slide rail rear flap groove with U-shaped cross section shape and matched with the upper slide rail rear flap matching groove, a pair of rollers is rotatably arranged at the left end bottom and the right end bottom of the upper slide rail through the roller shaft, and the pair of rollers and the upward side of the lower slide rail bottom plate form a rolling pair; a front anti-backlash mechanism is arranged on the upper slide rail groove front groove wall of the outward side of the upper slide rail front flap groove and located at the left end and the right end of the upper slide rail groove front groove wall, a rear anti-backlash mechanism is arranged on the upper slide rail groove rear groove wall of the outward side of the upper slide rail rear flap groove and located at the left end and the right end of the upper slide rail groove rear groove wall, the gap between the upper slide rail front flap matching groove and the upper slide rail front flap groove is eliminated by the front anti-backlash mechanism, and the groove walls of each other form a sliding pair, the gap between the upper slide rail rear flap matching groove and the upper slide rail rear flap groove is eliminated by the rear anti-backlash mechanism, and the groove walls of each other form a sliding pair; the embedded protrusion cavity is formed in the middle part of the length direction of the upper slide rail in a spaced state, and the embedded protrusion is formed in the lower part of the length direction of the seat pan connecting plate in a spaced state, the position of the embedded protrusion corresponds to the embedded protrusion cavity, and the embedded protrusion cavity is embedded with the mortise and tenon matching effect, a seat pan connecting plate nut seat is fixed at the upper left end and the right end of the seat pan connecting plate; a pair of upper slide rail guide mechanisms is arranged on the downward side of the middle part of the upper slide rail in a spaced state, the pair of upper slide rail guide mechanisms each includes a sliding sleeve seat fixing plate and a sliding sleeve seat, the sliding sleeve seat fixing plate is welded to the downward side of the upper slide rail, the sliding sleeve seat is fixed to the left side surface of the sliding sleeve seat fixing plate through the sliding sleeve seat fixing screw, the sliding sleeve seat screw sliding fitting hole is formed on the sliding sleeve seat, the sliding sleeve seat screw sliding fitting hole corresponds to the sliding sleeve seat fixing plate screw sliding fitting hole formed on the sliding sleeve seat fixing plate, the sliding sleeve seat screw sliding fitting hole and the sliding sleeve seat fixing plate screw sliding fitting hole are commonly sleeved on the screw and form a sliding pair with the screw.

[0015] In a further specific embodiment of the utility model, the structure of the rear anti-backlash mechanism is same with the structure of the front anti-backlash mechanism, the front anti-backlash mechanism includes a roller cage and a roller, the roller cage is inserted on the front slot wall of the upper slide rail slot, and the roller is arranged on the roller cage, and the roller makes the front slot wall of the upper slide rail slot and the slot wall of the upper slide rail front folded edge cooperation slot form sliding pairs with each other.

[0016] In a further specific embodiment of the utility model, a screw rod supporting seat fixing screw accommodating hole is formed on the lower slide rail bottom plate and at a position corresponding to the left end and the right end of the screw rod respectively, the left end and the right end of the screw rod are arranged on the screw rod supporting seat respectively, the left end of the screw rod is screwed with the screw rod supporting seat on the left end, the right end of the screw rod extends to the right side of the screw rod supporting seat on the right end and is locked by the screw rod right end locking nut, the bottom of the screw rod supporting seat is screwed into the bottom of the screw rod supporting seat from the bottom of the lower slide rail bottom plate in the direction of the lower slide rail cavity at the position corresponding to the screw rod supporting seat screw rod accommodating hole, so that the screw rod supporting seat is fixed with the lower slide rail bottom plate in the lower slide rail cavity, the spacer plate fixing holes are arranged in the length direction of the lower slide rail bottom plate of the lower slide rail, the spacer plates are arranged at the positions corresponding to the spacer plate fixing holes and below the lower slide rail bottom plate, the lower slide rail bottom plate is fixed with the vehicle compartment bottom plate together with the spacer plates by the spacer plate fixing screws at the positions corresponding to the spacer plate fixing holes in the use state, and the lower slide rail bottom plate is further matched with the positioning column holes prearranged on the vehicle compartment bottom plate through the spaced distributed positioning columns.

[0017] Another task of the utility model is achieved in this way, a car seat has the intelligent variable speed function of the car seat electric adjustment slide rail.

[0018] One of the technical effects of the technical scheme provided by the utility model is that the intelligent variable speed mechanism is composed of the primary speed reducer, the speed increaser and the final speed reducer connected in sequence, thus helping to reflect the smoothness and stability in the adjustment process and avoiding the abruptness and discomfort for the passengers; the second is that the initial speed reduction, the speed increase in the intermediate process and the final speed reduction are combined and used, thus significantly reducing the vibration and noise caused by rapid movement in the sliding process of the upper sliding rail and ensuring the comfort and stability of the passengers; the third is that it is convenient to meet the rapid adjustment of the passengers according to different scenes and obtain more comfortable riding experience; the fourth is that the intelligent variable speed mechanism has the gradual change process of speed reduction, speed increase and speed reduction, thus helping to prevent the motor shaft from loosening and even damaging the motor due to the large load of the motor and to ensure the long service life of the motor; the fifth is that the intelligent variable speed mechanism can reflect the ideal intelligent and automatic effect, thus improving the technological sense and user experience of the vehicle as a whole; the sixth is that the primary speed reducer, the speed increaser and the final speed reducer can reflect good modularization effect, thus facilitating manufacturing, installation and maintenance and enabling targeted replacement of damaged parts to save resources. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an embodiment structure diagram of the utility model;

[0020] Figure 2 It is an enlarged view of A part of Figure 1

[0021] Figure 3 It is a schematic view of the rear side of the speed increaser shown in Figure 1

[0022] Figure 4 It is an application example schematic view of the utility model. DETAILED DESCRIPTION

[0023] In order to more clearly understand the technical essence and beneficial effects of the utility model, the applicant will make a detailed description in the form of embodiments below, but the description of the embodiments is not a limitation on the technical scheme of the utility model, and any equivalent transformation only in form but not in substance according to the concept of the utility model should be regarded as the technical scheme category of the utility model.

[0024] In the following description, the directional or positional concepts of up, down, left, right, front and back are all based on the current position state of Figure 1 , thus it cannot be understood as a special limitation on the technical scheme provided by the utility model.

[0025] Please refer to Figure 1 ​​, show a lower slide rail 1, which is fixed with the floor of the car in use (to be mentioned later), and has a lower slide rail cavity 11 with an open upper part in the length direction of the lower slide rail 1; show an upper slide rail 2, which forms a sliding pair with the aforementioned lower slide rail 1; show a seat pan connecting plate 3, which is fixedly connected with the aforementioned upper slide rail 2; show a screw rod 4, which is arranged in the aforementioned lower slide rail cavity 11 at a position below the length direction of the aforementioned upper slide rail 2; show an intelligent speed change mechanism 5.

[0026] As the technical points of the technical solutions to be invented: the aforementioned intelligent speed change mechanism 5 includes a primary speed reduction device 51, a speed increasing device 52 and a final speed reduction device 53, the primary speed reduction device 51 is fixed on the front side of the middle part of the length direction of the aforementioned seat pan connecting plate 3, and is in driving connection with the speed increasing device 52, while the speed increasing device 52 is fixed on the rear side of the middle part of the length direction of the seat pan connecting plate 3 corresponding to the position of the primary speed reduction device 51, and is in driving connection with the final speed reduction device 53, while the final speed reduction device 53 is in driving cooperation with the aforementioned screw rod 4 in left and right movement and is connected with the aforementioned upper slide rail 2.

[0027] Continue to see Figure 1 A primary speed reduction device fixed mounting plate 31 is fixed in the middle part of the length direction of the aforementioned seat pan connecting plate 3, the lower part of the primary speed reduction device fixed mounting plate 31 is folded back in a horizontal state to a speed increasing device fixed mounting plate 311, the aforementioned primary speed reduction device 51 is fixed on the front side of the primary speed reduction device fixed mounting plate 31, while the aforementioned speed increasing device 52 is fixed on the speed increasing device fixed mounting plate 311, and the primary speed reduction device 51 is in driving connection with the speed increasing device 52 through the primary speed reduction device fixed mounting plate 31, while the speed increasing device 52 is in driving connection with the aforementioned final speed reduction device 53 in driving cooperation with the aforementioned screw rod 4 in left and right movement after passing through the speed increasing device fixed mounting plate 311 and the upper slide rail 2 in turn downward.

[0028] Continue to see Figure 1, the preferred but not absolute limited structure of the aforementioned primary reduction gear 51 is as follows: comprising a motor 511, a reduction gear box 512 and a spline shaft 513, the motor 511 is set in a lying state and drivingly connected with the reduction gear power input shaft of the reduction gear box 512 at a position corresponding to the right side of the reduction gear box 512, and fixed by the reduction gear box 512 together with the motor 511 and the front side of the aforementioned primary reduction gear fixed mounting plate 31, the rear end of the spline shaft 513 is drivingly fitted with the reduction gear last stage power output shaft spline hole 51211 of the reduction gear last stage power output shaft 5121 of the reduction gear box 512, the rear end of the spline shaft 513 extends to the rear side of the reduction gear box 512 after passing through the reduction gear last stage power output shaft spline hole 51211 and then extends to the rear side of the aforementioned primary reduction gear fixed mounting plate 31 and drivingly connected with the aforementioned speed increasing device 52, Figure 4 as shown.

[0029] As shown in Figure 1 , a worm gear and worm box support cavity 24 is opened in the middle of the length direction of the aforementioned upper slide rail 2, and a worm shaft accommodation hole 241 is opened at a position corresponding to the middle side of the worm gear and worm box support cavity 24, the aforementioned speed increasing device 52 is drivingly connected with the aforementioned last stage reduction gear 53 after passing through the aforementioned speed increasing device fixed mounting plate 311, so that the last stage reduction gear 53 moves along the aforementioned screw rod 4 left and right.

[0030] Please refer to Figures 2-3 and in combination with Figure 1, a spline shaft accommodation hole 312 is formed on the primary reduction device fixed mounting plate 31, and a worm shaft sleeve matching hole 3111 is formed on the speed increasing device fixed mounting plate 311; the preferred but not absolutely limited structure of the speed increasing device 52 is as follows: including a speed increasing worm and gear box 521, a speed increasing worm and gear box cover 522, a speed increasing worm wheel 523, a speed increasing worm 524, and a worm shaft sleeve 525, the lower part of the speed increasing worm and gear box 521 is provided with a speed increasing worm and gear box seat 5211, which is fixed to the side of the speed increasing device fixed mounting plate 311 by speed increasing worm and gear box seat fixing screws 52111, the worm shaft sleeve 525 is matched with the worm shaft sleeve matching hole 3111, and a speed increasing worm shaft through hole 5251 is formed in the middle part of the worm shaft sleeve 525 from the upper part to the lower part, the speed increasing worm wheel 523 and the speed increasing worm 524 are arranged in the speed increasing worm and gear box 521 and are engaged with each other, wherein the lower end of the speed increasing worm shaft 5231 of the speed increasing worm wheel 523 extends below the speed increasing worm and gear box 521, and after passing through the speed increasing worm shaft through hole 5251, it is matched with the last stage reduction device 53, and the upper end penetrates into the box cover shaft hole 5222 formed in the speed increasing worm and gear box cover 522, the speed increasing worm shaft spline hole 52411 of the speed increasing worm shaft 5241 of the speed increasing worm 524 corresponds to the reduction box last stage power output shaft spline hole 51211, the rear end of the spline shaft 513 extends into the speed increasing worm shaft spline hole 52411 after passing through the spline shaft accommodation hole 312, and is matched with the speed increasing worm shaft 5241, the speed increasing worm and gear box cover 522 is fixed to the worm and gear box fixing screw hole 5212 formed on the speed increasing worm and gear box 521 by speed increasing worm and gear box cover fixing screws 5221; a pair of reduction box fixing studs 313 are arranged on the front side of the primary reduction device fixed mounting plate 31, and the reduction box 512 is fixed to the pair of reduction box fixing studs 313 by a pair of reduction box fixing screws 5122.

[0031] See Figure 1The preferred, but not absolute, structure of the aforementioned final stage reduction gear 53 is as follows: it comprises a final stage worm gear reduction gear box support 531 and a final stage worm gear reduction gear box 532. The upper part of the final stage worm gear reduction gear box support 531 is embedded with the aforementioned upper slide rail 2 at the position corresponding to the aforementioned worm gear box embedding cavity 24, so as to realize the connection with the upper slide rail 2. The final stage worm gear reduction gear box 532 is arranged on the final stage worm gear reduction gear box support 531 and is moved together with the final stage worm gear reduction gear box support 531 and the final stage worm gear reduction gear box 532 and the aforementioned screw rod 4. The lower end of the aforementioned speed-increasing worm gear shaft 5231 is in transmission cooperation with the final stage worm gear shaft hole 5331 of the final stage worm gear 533 of the final stage worm gear reduction gear box 532 after passing through the aforementioned speed-increasing worm gear shaft passing hole 5251 and the aforementioned worm gear shaft displacement hole 241. The final stage worm gear 533 is in transmission cooperation with the final stage worm gear reduction gear box worm gear in the final stage worm gear reduction gear box 532, and the final stage worm gear reduction gear box worm gear moves left and right and is in transmission cooperation with the aforementioned screw rod 4.

[0032] In the present embodiment, the aforementioned motor 511 is a direct-current brushless motor with a forward and reverse rotation function.

[0033] Please see Figure 1 The lower slide rail cavity 11 of the aforementioned lower slide rail 1 is composed of a lower slide rail bottom plate 12, a lower slide rail front flap 13 and a lower slide rail rear flap 14. The lower slide rail front flap 13 is folded upward from the front side of the length direction of the lower slide rail bottom plate 12, and an upper slide rail front folded edge cooperation groove 131 is formed on the upper part of the length direction of the lower slide rail front flap 13 by folding it upward toward the direction of the lower slide rail cavity 11. The lower slide rail rear flap 14 is folded upward from the rear side of the length direction of the lower slide rail bottom plate 12, and an upper slide rail rear folded edge cooperation groove 141 is formed on the upper part of the length direction of the lower slide rail rear flap 14 by folding it upward toward the direction of the lower slide rail cavity 11. The lower slide rail front flap 13 and the lower slide rail rear flap 14 correspond to each other in front and back, and the upper slide rail front folded edge cooperation groove 131 and the upper slide rail rear folded edge cooperation groove 141 correspond to each other in front and back and have an n-shaped cross-sectional shape. An upper slide rail front folded edge groove 21 with a U-shaped cross-sectional shape and cooperating with the aforementioned upper slide rail front folded edge cooperation groove 131 is formed on the front side of the length direction of the aforementioned upper slide rail 2 by folding it upward. An upper slide rail rear folded edge groove 22 with a U-shaped cross-sectional shape and cooperating with the aforementioned upper slide rail rear folded edge cooperation groove 141 is formed on the rear side of the length direction of the aforementioned upper slide rail 2 by folding it upward. A pair of rollers 23 is rotatably arranged on the left end bottom (also referred to as lower side) and the right end bottom (also referred to as lower side) of the aforementioned upper slide rail 2 through roller shafts, and the pair of rollers 23 and the upward side of the aforementioned lower slide rail bottom plate 12 form a rolling pair.

[0034] In Figure 1The roller shaft support plates 25 for setting the roller shafts 231 are shown in the left and right ends of the lower slide rail 2. A front anti-backlash mechanism 6 is arranged on the outer side of the upper slide rail front folded edge groove 21 and at the left and right ends of the upper slide rail groove front groove wall 211. A rear anti-backlash mechanism 7 is arranged on the outer side of the upper slide rail rear folded edge groove 22 and at the left and right ends of the upper slide rail groove rear groove wall 221. The front anti-backlash mechanism 6 eliminates the gap between the upper slide rail front folded edge fitting groove 131 and the upper slide rail front folded edge groove 21 and makes the groove walls of the two form a sliding pair. The rear anti-backlash mechanism 7 eliminates the gap between the upper slide rail rear folded edge fitting groove 141 and the upper slide rail rear folded edge groove 22 and makes the groove walls of the two form a sliding pair. The embedded block cavities 26 are arranged in the middle of the length direction of the upper slide rail 2. The embedded blocks 33 are arranged in the lower part of the length direction of the seat pan connecting plate 3. The positions of the embedded blocks 33 correspond to the embedded block cavities 26 and are fitted with the embedded block cavities 26 in a mortise and tenon fitting effect. The seat pan connecting plate nuts 32 are fixed to the upper left and right ends of the seat pan connecting plate 3.

[0035] Preferably, the embedded blocks 33 corresponding to the positions of the grooves 5252 at the two ends of the worm gear shaft sleeve 525 are embedded in the grooves 5252 at the two ends.

[0036] A pair of upper slide rail guide mechanisms 8 are arranged on the downward side of the middle of the upper slide rail 2. Each upper slide rail guide mechanism 8 includes a sliding sleeve seat fixed plate 81 and a sliding sleeve seat 82. The sliding sleeve seat fixed plate 81 is welded to the downward side of the upper slide rail 2. The sliding sleeve seat 82 is fixed to the left side of the sliding sleeve seat fixed plate 81 by sliding sleeve seat fixed screws 822. The sliding sleeve seat 82 has a sliding sleeve seat screw sliding fitting hole 821 corresponding to the sliding sleeve seat fixed plate screw sliding fitting hole arranged on the sliding sleeve seat fixed plate 81. The sliding sleeve seat screw sliding fitting hole 821 and the sliding sleeve seat fixed plate screw sliding fitting hole are fitted on the screw 4 and form a sliding pair with the screw 4. This structure makes the movement (left and right movement) of the upper slide rail 2 more stable.

[0037] Since the structure of the rear anti-backlash mechanism 7 is the same as that of the front anti-backlash mechanism 6, the applicant only describes the front anti-backlash mechanism 6 below. The front anti-backlash mechanism 6 includes a roller retainer 61 and a roller 62. The roller retainer 61 is inserted on the upper slide rail groove front groove wall 211. The roller 62 is arranged on the roller retainer 61. The roller 62 makes the upper slide rail groove front groove wall 211 and the groove wall of the upper slide rail front folded edge fitting groove 131 form a sliding pair with each other.

[0038] Continued to see Figure 1In the aforementioned lower slide rail bottom plate 12 and in positions respectively corresponding to the left end and the right end of the aforementioned screw rod 4, a screw rod support seat fixing screw accommodating hole 121 is formed, the left end and the right end of the aforementioned screw rod 4 are arranged on the screw rod support seat 41, and the left end of the screw rod 4 is screwed with the left end screw rod support seat 41, while the right end of the screw rod 4 extends to the right side of the right end screw rod support seat 41 and is locked by the screw rod right end locking nut 42, because the left end of the screw rod 4 is screwed with the left end screw rod support seat 41, while the right end of the screw rod 4 is matched with the corresponding area of the right end screw rod support seat 41, so the screw rod right end locking nut 42 is needed to lock. The bottom of the aforementioned screw rod support seat 41 is screwed into the bottom of the screw rod support seat 41 from the bottom of the lower slide rail bottom plate 12 in the direction of the aforementioned lower slide rail cavity 11 by the screw rod support seat fixing screw 411 at positions corresponding to the aforementioned screw rod support seat screw accommodating hole 121, so as to fix the screw rod support seat 41 in the aforementioned lower slide rail cavity 11 with the lower slide rail bottom plate 12; The spacer plate fixing hole 122 is arranged in the length direction of the lower slide rail bottom plate 12 of the aforementioned lower slide rail 1, the spacer plate 1221 is arranged at positions corresponding to the spacer plate fixing hole 122 and below the lower slide rail bottom plate 12, and in the use state, the lower slide rail bottom plate 12 together with the spacer plate 1221 is fixed with the vehicle compartment floor by the spacer plate fixing screw at positions corresponding to the spacer plate fixing hole 122, and the lower slide rail bottom plate 12 is also matched with the positioning column hole prearranged on the vehicle compartment floor through the spacer distributed positioning column 123.

[0039] The utility model still relates to have car seat, this car seat has preceding multistage reduction's car seat split type electrically regulated slide rail for.

[0040] Please see Figure 4 According to professional knowledge, relative to a car seat, the corresponding and mutually sliding matched upper and lower slide rails 1, 2 each have a pair, which are located Figure 4 The structure system of the front side upper and lower slide rails 1, 2 in the position state shown in the figure omits the primary reduction device 51, that is, omits the motor 511 and the reduction box 512.

[0041] The applicant combines Figures 1-4Brief description of the working principle of the utility model, because the motor 511 of the structure system of the preceding primary speed reducer 51 is controlled by the ECU (automobile electronic control unit) with intelligent function, thus when the passenger needs to adjust the automobile seat, for example, adjusts to the right, then as long as the button arranged at the side or bottom or other reasonable position of the automobile seat is operated, the primary speed reducer 51 works, specifically: the motor 511 works, the motor 511 drives the speed reducer box 512 and the spline shaft 513 is driven by the speed reducer box 512, thereby the speed reducer box 512 drives the speed increasing device 52 through the spline shaft 513. Specifically: the preceding spline shaft 513 drives the speed increasing worm 524, the speed increasing worm 524 drives the speed increasing worm wheel 523, the speed increasing worm wheel shaft 5231 of the speed increasing worm wheel 523 drives the worm in the last stage worm and worm reducer box 532 of the last stage speed reducer 53, the worm drives the worm wheel to displace to the right along the screw rod 4, achieves the purpose of adjusting the position of the automobile seat, when the automobile seat needs to be adjusted to the left, then as long as the reverse operation of the preceding button is carried out, the motor 511 can reverse rotation.

[0042] In summary, the technical scheme provided by the utility model makes up for the defects in the prior art, successfully completes the invention task and truly realizes the technical effects described in the technical effect column above.

Claims

1. An electric adjustment slide rail for a car seat with intelligent transmission function, comprising a lower slide rail (1) fixed to the floor of the car body in use, and having an upper open lower slide rail cavity (11) in the length direction of the lower slide rail (1); an upper slide rail (2) forming a sliding pair with the lower slide rail (1); a seat basin connecting plate (3) fixedly connected to the upper slide rail (2); a screw (4) disposed in the lower slide rail cavity (11) at a position corresponding to the lower length direction of the upper slide rail (2); and an intelligent transmission mechanism (5), characterized in that: The intelligent speed change mechanism (5) includes a primary speed reduction device (51), a speed increase device (52), and a final speed reduction device (53). The primary speed reduction device (51) is fixed to the front side of the middle part of the seat basin connecting plate (3) in the length direction and is connected to the speed increase device (52) in a transmission manner. The speed increase device (52) is fixed to the rear side of the middle part of the seat basin connecting plate (3) in the length direction at a position corresponding to the primary speed reduction device (51) and is connected to the final speed reduction device (53) in a transmission manner. The final speed reduction device (53) moves left and right in a transmission manner with the screw (4) and is connected to the upper slide rail (2).

2. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 1, characterized in that: A primary speed reduction device mounting plate (31) is fixed at the middle of the length direction of the seat basin connecting plate (3). The lower part of the primary speed reduction device mounting plate (31) is folded back horizontally to a speed increase device mounting plate (311). The primary speed reduction device (51) is fixed to the front side of the primary speed reduction device mounting plate (31), and the speed increase device (52) is fixed to the speed increase device mounting plate (311). The primary speed reduction device (51) passes through the primary speed reduction device mounting plate (31) and is connected to the speed increase device (52) in a transmission connection. The speed increase device (52) passes downward through the speed increase device mounting plate (311) and the upper slide rail (2) in sequence and is connected to the final speed reduction device (53) which moves left and right and is in transmission cooperation with the screw (4).

3. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 2, characterized in that: The primary reduction gear (51) includes a motor (511), a reduction gearbox (512), and a splined shaft (513). The motor (511) is horizontally mounted and connected to the power input shaft of the reduction gearbox (512) at a position corresponding to the right side of the reduction gearbox (512). The reduction gearbox (512), along with the motor (511), is fixed to the front side of the primary reduction gear mounting plate (31). The rear end of the splined shaft (513) is engaged with the splined hole (51211) of the final stage power output shaft (5121) of the reduction gearbox (512). The rear end of the splined shaft (513) extends to the rear side of the reduction gearbox (512) after passing through the splined hole (51211) of the final stage power output shaft. The primary speed reducer extends to the rear side of the mounting plate (31) and is connected to the speed increaser (52). The front end of the spline shaft (513) is connected to the speed increaser (52) on the adjacent mounting plate (311) of the speed increaser, which is also located on the rear side of the corresponding seat basin connecting plate (3). A worm gear box support cavity (24) is opened in the middle of the upper slide rail (2) along its length, and a worm gear shaft clearance hole (241) is opened on one side of the middle of the worm gear box support cavity (24). After passing through the speed increaser mounting plate (311), the speed increaser (52) is connected to the final speed reducer (53) so that the final speed reducer (53) moves left and right along the screw (4).

4. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 3, characterized in that: A spline shaft clearance hole (312) is provided on the primary reduction device mounting plate (31), and a worm gear bushing mating hole (3111) is provided on the speed-increasing device mounting plate (311). The speed-increasing device (52) includes a speed-increasing worm gear box (521), a speed-increasing worm gear box cover (522), a speed-increasing worm gear (523), a speed-increasing worm (524), and a worm gear bushing (525). The lower part of the speed-increasing worm gear box (521) forms a speed-increasing worm gear box seat (5211), which is open to the air intake. The speed-increasing worm gear box holder fixing screw (52111) is fixed to the upward-facing side of the speed-increasing device fixing mounting plate (311). The worm gear bushing (525) is fitted into the worm gear bushing mating hole (3111), and a speed-increasing worm gear shaft through hole (5251) extending from the upper part to the lower part is formed in the middle of the worm gear bushing (525). The speed-increasing worm gear (523) and the speed-increasing worm (524) are arranged in the speed-increasing worm gear box (521) and mesh with each other. The lower end of the speed-increasing worm gear shaft (5231) of the speed-increasing worm gear (523) extends to... Below the speed-increasing worm gear box (521), and after passing through the speed-increasing worm shaft through hole (5251), it engages with the final stage reduction device (53) for transmission, while its upper end extends into the box cover shaft hole (5222) opened on the speed-increasing worm gear box cover (5222). The speed-increasing worm shaft spline hole (52411) of the speed-increasing worm shaft (5241) of the speed-increasing worm (524) corresponds to the spline hole (51211) of the final stage power output shaft of the reduction gear box. The rear end of the spline shaft (513) extends to the final stage power output shaft after passing through the spline shaft clearance hole (312). The speed-increasing worm shaft spline hole (52411) is in drive engagement with the speed-increasing worm shaft (5241). The speed-increasing worm gear box cover (522) is fixed to the worm gear box fixing screw hole (5212) on the speed-increasing worm gear box (521) by the speed-increasing worm gear box cover fixing screw (5221). A pair of gearbox fixing studs (313) are provided on the front side of the primary reduction device fixing mounting plate (31). The gearbox (512) is fixed to the pair of gearbox fixing studs (313) by a pair of gearbox fixing screws (5122).

5. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 4, characterized in that: The final stage reduction device (53) includes a final stage worm gear reducer support (531) and a final stage worm gear reducer (532). The upper part of the final stage worm gear reducer support (531) is fixed to the upper slide rail (2) at a position corresponding to the cavity (24) of the worm gear reducer support. The final stage worm gear reducer (532) is mounted on the final stage worm gear reducer support (531) and is connected to the screw (4) by the final stage worm gear reducer support (531) together with the final stage worm gear reducer (532). In a movable engagement, the lower end of the speed-increasing worm shaft (5231) passes through the speed-increasing worm shaft through hole (5251) and the worm shaft clearance hole (241) and engages with the final stage worm shaft hole (5331) of the final stage worm gear reducer (532). The final stage worm gear (533) engages with the worm gear in the final stage worm gear reducer (532) and the worm gear in the final stage worm gear reducer moves left and right in a driving engagement with the screw (4).

6. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 3, characterized in that: The motor (511) is a brushless DC motor with forward and reverse rotation functions.

7. The electric adjustment slide rail for car seats with intelligent speed control function according to claim 1, characterized in that: The lower slide rail cavity (11) of the lower slide rail (1) is composed of a lower slide rail base plate (12), a lower slide rail front fold plate (13), and a lower slide rail rear fold plate (14). The lower slide rail front fold plate (13) is formed by folding the front side of the lower slide rail base plate (12) upward in the length direction, and a front folded edge fitting groove (131) is formed on the upper part of the lower slide rail front fold plate (13) towards the lower slide rail cavity (11). The lower slide rail rear fold plate (14) is formed by folding the rear side of the lower slide rail base plate (12) upward in the length direction, and a rear folded edge fitting groove (131) is formed on the upper part of the lower slide rail rear fold plate (14) towards the lower slide rail cavity (11). 41) The front fold plate (13) and the rear fold plate (14) of the lower slide rail correspond to each other front and back, while the front fold groove (131) and the rear fold groove (141) of the upper slide rail correspond to each other front and back and have an n-shaped cross-section; the front side of the upper slide rail (2) is folded upward in the length direction to form a U-shaped cross-section groove (21) that matches the front fold groove (131) of the upper slide rail; the rear side of the upper slide rail (2) is folded upward in the length direction to form a U-shaped cross-section groove (22) that matches the rear fold groove (141) of the upper slide rail; the left and right bottom ends of the upper slide rail (2) are also folded upward. Each slide rail has a pair of rollers (23) rotatably mounted on a roller shaft. These rollers (23) form a rolling pair with the upward-facing side of the slide rail base plate (12). A front clearance elimination mechanism (6) is provided on the outward-facing side of the front flange groove (211) of the upper slide rail groove, at the left and right ends of the front flange groove (211). A rear clearance elimination mechanism (7) is provided on the outward-facing side of the rear flange groove (221) of the upper slide rail groove, at the left and right ends of the rear flange groove (221). The front clearance elimination mechanism (6) eliminates the gap between the front flange mating groove (131) and the front flange groove (21) of the upper slide rail. Furthermore, the groove walls of each other form a sliding pair, and the gap between the upper slide rail rear folded edge fitting groove (141) and the upper slide rail rear folded edge groove (22) is eliminated by the rear gap elimination mechanism (7), and the groove walls of each other form a sliding pair; an embedded protrusion cavity (26) is provided at intervals in the middle of the length direction of the upper slide rail (2), and an embedded protrusion (33) is provided at intervals in the lower part of the length direction of the chair seat basin connecting plate (3). The position of the embedded protrusion (33) corresponds to the embedded protrusion cavity (26) and is fitted with the embedded protrusion cavity (26) by mortise and tenon joint effect. A chair seat basin connecting plate nut seat (32) is fixed at the upper left and right ends of the chair seat basin connecting plate (3);A pair of upper slide rail guide mechanisms (8) spaced apart are provided on the downward-facing side of the middle of the upper slide rail (2). Each of the upper slide rail guide mechanisms (8) includes a sliding sleeve seat fixing plate (81) and a sliding sleeve seat (82). The sliding sleeve seat fixing plate (81) is welded to the downward-facing side of the upper slide rail (2). The sliding sleeve seat (82) is fixed to the left side of the sliding sleeve seat fixing plate (81) by a sliding sleeve seat fixing screw (822). A sliding sleeve seat screw sliding hole (821) is formed on the sliding sleeve seat (82), which corresponds to the sliding sleeve seat fixing plate screw sliding hole opened on the sliding sleeve seat fixing plate (81). The sliding sleeve seat screw sliding hole (821) and the sliding sleeve seat fixing plate screw sliding hole are together fitted on the screw (4) and form a sliding pair with the screw (4).

8. The electric adjustment slide rail for automotive seats with intelligent speed control function according to claim 7, characterized in that: The structure of the rear backlash elimination mechanism (7) is the same as that of the front backlash elimination mechanism (6). The front backlash elimination mechanism (6) includes a roller retainer (61) and a roller (62). The roller retainer (61) is inserted into the front groove wall (211) of the upper slide rail groove, and the roller (62) is arranged on the roller retainer (61). The roller (62) makes the front groove wall (211) of the upper slide rail groove and the groove wall of the front folded edge mating groove (131) of the upper slide rail form a sliding pair with each other.

9. The electric adjustment slide rail for automotive seats with intelligent speed control function according to claim 7, characterized in that: On the lower slide rail base plate (12), there are screw support fixing screw clearance holes (121) respectively at the left and right ends of the screw (4). The left and right ends of the screw (4) are respectively mounted on the screw support (41), and the left end of the screw (4) is threaded into the screw support (41) located at the left end. The right end of the screw (4) extends to the right side of the screw support (41) at the right end and is locked by the right end locking nut (42). The bottom of the screw support (41) is secured by a screw support fixing screw (411) at the position corresponding to the screw support fixing screw clearance hole (121) from the bottom of the lower slide rail base plate (12) toward the lower slide rail cavity (11). The screw support (41) is screwed upwards into the bottom of the screw support (41) to fix the screw support (41) to the lower slide rail base plate (12) in the lower slide rail cavity (11); the lower slide rail base plate (12) of the lower slide rail (1) is provided with spaced pad fixing holes (122) along the length direction, and a pad (1221) is provided at the position corresponding to the pad fixing holes (122) and located below the lower slide rail base plate (12). In use, the lower slide rail base plate (12) together with the pad (1221) is fixed to the vehicle's carriage floor by the pad fixing screw at the position corresponding to the pad fixing holes (122). The lower slide rail base plate (12) is also engaged with the positioning pin holes preset on the vehicle's carriage floor by spaced positioning pins (123).

10. A car seat, characterized in that: The electric adjustment slide rail for car seats with intelligent speed control function as described in claim 1.

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