Z-direction anti-backlash structure of automobile center console sliding rail

Abstract

The invention discloses a Z-direction anti-backlash structure of an automobile center console sliding rail, and belongs to the technical field of automobile parts. The automobile center console sliding rail comprises an upper sliding rail body. The Z-direction anti-backlash structure comprises an upper sliding rail Z-direction anti-backlash mechanism arranged at the left end and the right end of the lower portion of the front side face of the upper sliding rail and an upper sliding rail Z-direction anti-backlash mechanism arranged at the left end and the right end of the lower portion of the rear side face of the upper sliding rail, and is characterized in that each upper sliding rail Z-direction anti-backlash mechanism comprises a Z-direction anti-backlash idler wheel swing arm, a Z-direction anti-backlash idler wheel, a supporting idler wheel and a swing arm acting cushion block; a Z-direction anti-backlash roller swing arm bending part is formed at one end, facing the swing arm acting cushion block, of the Z-direction anti-backlash roller swing arm, the Z-direction anti-backlash roller is arranged on one side, back to the upper sliding rail, of the middle of the Z-direction anti-backlash roller swing arm, the supporting roller is arranged on a supporting roller shaft pin shaft screw, the swing arm acting cushion block is embedded in the upper sliding rail, and the Z-direction anti-backlash roller is arranged on the Z-direction anti-backlash roller swing arm. And the Z-direction anti-backlash roller swing arm bending part is supported on the upper surface of the swing arm acting cushion block. The sliding rail has the advantages that good NVH performance is guaranteed, and the lasting, stable and excellent rolling pair relation between the upper sliding rail and the lower sliding rail is fully guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, specifically relating to a Z-axis backlash-free structure for a car center console slide rail. Background Technology

[0002] The aforementioned car center console, also known as the car center console box or even commonly referred to as the armrest box or central armrest box, is typically located between the driver and passenger seats. Its function has far exceeded basic storage, evolving into a highly integrated control and comfort hub for the driver's cabin. Traditional fixed center consoles are static functional units, their core contradiction being the conflict between their fixed location and the dynamic needs of different users in different scenarios. Sliding movable center consoles upgrade this to a dynamic, intelligent space adjuster. Essentially, this means shifting from people adapting to the car to the car adapting to people, breaking the traditional pattern of fixed interior space and rigid functional areas, and giving the interior space a high degree of flexibility. Within the limited physical space, through intelligent mechanical movement, it maximizes the satisfaction of the personalized comfort needs, scenario-based functional needs, and safety and convenience needs of drivers and passengers, among others.

[0003] Since there is no shortage of technical information in the published Chinese patent documents that enables the center console to move as needed, such as CN211107049U recommending "a movable center console aluminum alloy electric slide rail", CN215398181U describing "a sliding device for a sub-instrument panel" and CN114992238A providing "a sub-instrument panel slide rail structure and vehicle", etc., the applicant will not provide a detailed description of its comprehensive structure.

[0004] As a sliding rail for a car's center console that can slide as needed, the lack of a Z-axis backlash elimination mechanism inevitably leads to the following shortcomings: Deterioration of NVH performance (noise, vibration, and harshness performance). During vehicle operation, especially on bumpy roads, the Z-axis clearance causes repeated impacts between the upper and lower rail cavity walls, resulting in noticeable abnormal noises such as a "clicking" sound. It also directly transmits road impacts to the center console, compromising the quietness and premium feel of the cabin. Reduced operational feel and stability. The center console panel supports important human-machine interface components such as displays and buttons. Z-axis clearance causes the panel to feel loose and wobbly during operation, such as pressing screen operation buttons, severely weakening operational precision and confidence, giving the impression of a loose structure, poor quality, and even psychological damage. Accelerated wear and reliability risks. Unrestrained up-and-down movement causes the rail contact surface to change from ideal rolling or uniform contact to localized impact and uneven wear. This not only exacerbates wear and tear, creating a vicious cycle of widening gaps, but also can lead to fatigue operation or even failure of the slide rail or interconnected components due to unavoidable stress concentration; it affects the precision and functionality of component fit, because the center console usually integrates a large number of functional components that require power support, so the Z-axis movement of the slide rail may be transmitted to these functional components, causing misfitting, cable wear, etc.; it affects the good experience expected by drivers and passengers, because with the development of smart cockpits, the center console integrates larger and heavier screens and precision vibration feedback devices, and therefore lacks effective Z-axis backlash elimination, which simply cannot meet the requirements of highly integrated and highly dynamic stability space scenarios.

[0005] Since none of the patents mentioned above provide any inspiration for technical measures to help avoid Z-axis clearance of the upper slide rail, the technical solution to be introduced below is generated in this context. Summary of the Invention

[0006] The objective of this invention is to provide a Z-axis gap-free structure for automotive center console slide rails that helps ensure good NVH performance, avoids affecting the operation feel and stability of electronic and electrical components on the center console mounted on the slide rails, ensures a long-lasting, stable, and excellent rolling pair relationship between the upper and lower slide rails, avoids wear on functional components and even cables of the center console due to Z-axis vibration, and facilitates a good user experience that meets the expectations of drivers and passengers.

[0007] The objective of this invention is achieved as follows: a Z-axis backlash elimination structure for a car center console slide rail, wherein the car center console slide rail includes an upper slide rail; the Z-axis backlash elimination structure includes one upper slide rail Z-axis backlash elimination mechanism each disposed at the lower left and right ends of the front side and the lower left and right ends of the rear side along the length direction of the upper slide rail, characterized in that: the upper slide rail Z-axis backlash elimination mechanism includes a Z-axis backlash elimination roller swing arm, a Z-axis backlash elimination roller, a support roller, and a swing arm action pad; at the end of the Z-axis backlash elimination roller swing arm facing the swing arm action pad, a Z-axis backlash elimination roller swing arm bend is formed, which folds towards the upper slide rail. The Z-axis backlash elimination roller is rotatably mounted on the side of the Z-axis backlash elimination roller swing arm opposite to the upper slide rail via a Z-axis backlash elimination roller shaft. A support roller is located at the end of the Z-axis backlash elimination roller swing arm away from the bent portion of the Z-axis backlash elimination roller swing arm and opposite to the upper slide rail. The support roller is rotatably mounted on a support roller shaft pin screw, which is connected to the upper slide rail after passing through the Z-axis backlash elimination roller swing arm. A swing arm action pad is embedded in the upper slide rail at a position corresponding to the lower part of the bent portion of the Z-axis backlash elimination roller swing arm, and the bent portion of the Z-axis backlash elimination roller swing arm is supported on the upper surface of the swing arm action pad.

[0008] In a specific embodiment of the present invention, a swing arm action pad embedding groove is provided on the front side and rear side of the upper slide rail at a position corresponding to the bending part of the Z-direction backlash-free roller swing arm, and the swing arm action pad is fitted into the swing arm action pad embedding groove.

[0009] In another specific embodiment of the present invention, the swing arm action pad is U-shaped.

[0010] In another specific embodiment of the present invention, the swing arm action pad is made of an elastic material; the elastic material is rubber.

[0011] In another specific embodiment of the present invention, a pair of spaced-apart upper slide rail Y-direction backlash elimination mechanisms are provided on the front side and the rear side of the upper slide rail in the length direction, and at positions between the Z-direction backlash elimination mechanisms located at the left and right ends.

[0012] In another specific embodiment of the present invention, the upper slide rail front Y-axis backlash elimination mechanism includes a Y-axis backlash elimination roller frame and a Y-axis backlash elimination roller. The two ends of the Y-axis backlash elimination roller frame are fixed to the upper slide rail by roller frame fixing screws, and the Y-axis backlash elimination roller is rotatably arranged in the middle of the Y-axis backlash elimination roller frame via a Y-axis backlash elimination roller shaft.

[0013] In a further specific embodiment of the present invention, a transmission box clearance opening is formed at the center of the lower part of the front side of the upper slide rail along the length direction, and a transmission box seat screw hole is formed at the left and right ends corresponding to the transmission box clearance opening.

[0014] In a further specific embodiment of the present invention, a central control support fixing seat protruding from the upper surface of the upper slide rail is formed on the upper front side and the upper rear side of the upper slide rail along the length direction.

[0015] In yet another specific embodiment of the present invention, a pair of center console mounting holes are provided at the left and right ends of the front side and the left and right ends of the rear side of the center console support mounting base along the length direction, respectively.

[0016] The technical advantages of the solution provided by this invention are as follows: Since an upper slide rail Z-axis backlash elimination mechanism, consisting of a Z-axis backlash elimination roller swing arm, a Z-axis backlash elimination roller, a support roller, and a swing arm action pad, is provided at the lower left and right ends of the front and rear sides of the upper slide rail along its length, it helps to ensure good NVH performance, avoids affecting the operation feel and stability of the electronic and electrical components on the center console mounted on the upper slide rail, fully guarantees the long-lasting, stable, and excellent rolling pair relationship between the upper and lower slide rails, and facilitates a good user experience that meets the expectations of drivers and passengers for the center console. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating an application example of the present invention.

[0018] In the diagram: 1. Upper slide rail; 11. Swing arm action pad mounting groove; 12. Transmission box clearance opening; 13. Transmission box seat screw hole; 14. Center console support mounting base; 141. Center console mounting hole; 142. Zipper head connecting cavity; 15. Zipper head lower connecting cavity; 2. Upper slide rail Z-axis backlash elimination mechanism; 21. Z-axis backlash elimination roller swing arm; 211. Z-axis backlash elimination roller swing arm bending part; 22. Z-axis backlash elimination roller; 221. Z-axis backlash elimination roller shaft; 23. Support roller; 231. Support roller shaft pin screw; 24. Swing arm action pad; 3. Upper slide rail Y-axis backlash elimination mechanism; 31. Y-axis backlash elimination roller frame; 311. Roller frame fixing screw; 32. Y-axis backlash elimination roller; 321. Y-axis backlash elimination roller shaft; 4. Lower slide rail; 41. 411. Lead screw cavity; 412. Lead screw cavity upper guide groove protective zipper; 42. Tank chain cavity; 421. Tank chain; 422. Tank chain cavity upper guide groove protective zipper; 43. Cavity partition strip; 5. Front zipper head; 6. Rear zipper head; 7. Upper slide rail moving drive mechanism; 71. Motor; 72. Wiring harness electrical connection module. Detailed Implementation

[0019] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0020] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on the current... Figure 1 The location and state of the object are examples, and therefore should not be construed as a special limitation on the technical solution provided by the present invention.

[0021] Please see Figure 1 The diagram shows an upper slide rail 1, which is part of the structure of the slide rail system of the car center console; it also shows a Z-axis backlash elimination mechanism 2, which is provided at the left and right ends of the lower front side and the left and right ends of the lower rear side of the aforementioned upper slide rail 1 along its length. In other words, there are four upper slide rail Z-axis backlash elimination mechanisms 2 relative to one upper slide rail 1.

[0022] The key technical points of the technical solution provided by the present invention are as follows: The aforementioned upper slide rail Z-axis backlash elimination mechanism 2 includes a Z-axis backlash elimination roller swing arm 21, a Z-axis backlash elimination roller 22, a support roller 23, and a swing arm action pad 24. At one end of the Z-axis backlash elimination roller swing arm 21 facing the swing arm action pad 24, a Z-axis backlash elimination roller swing arm bend 211 is formed, which folds out in the direction of the aforementioned upper slide rail 1. The Z-axis backlash elimination roller 22 is rotatably disposed on the side of the Z-axis backlash elimination roller swing arm 21 facing away from the aforementioned upper slide rail 1 via a Z-axis backlash elimination roller shaft 221. The support roller 23 is located at... The Z-axis backlash-eliminating roller swing arm 21 is located away from the aforementioned Z-axis backlash-eliminating roller swing arm bend 211 and on the side facing away from the upper slide rail 1. The support roller 23 is rotatably mounted on the support roller shaft pin screw 231, which is connected to the aforementioned upper slide rail 1 after passing through the Z-axis backlash-eliminating roller swing arm 21. The swing arm action pad 24 is embedded in the upper slide rail 1 at a position corresponding to the lower part of the aforementioned Z-axis backlash-eliminating roller swing arm bend 211, and the Z-axis backlash-eliminating roller swing arm bend 211 is supported on the upper surface of the swing arm action pad 24.

[0023] To avoid ambiguity, the applicant is located at Figure 1 Taking the upper slide rail Z-axis backlash elimination mechanism 2 at the front right end of the upper slide rail 1 as an example, the following supplementary explanation is given: At the left end of the Z-axis backlash elimination roller swing arm 21, there is a Z-axis backlash elimination roller swing arm bend 211 that folds backward in the direction of the upper slide rail 1. The Z-axis backlash elimination roller 22 is rotatably set on the front side of the middle part of the Z-axis backlash elimination roller swing arm 21 via the Z-axis backlash elimination roller shaft 221. The support roller 23 is located on the front side of the right end of the Z-axis backlash elimination roller swing arm 21.

[0024] On the front and rear sides of the aforementioned upper slide rail 1, and at the position corresponding to the aforementioned Z-direction backlash-free roller swing arm bend 211, a swing arm action pad insertion groove 11 is provided, and the aforementioned swing arm action pad 24 is fitted into the swing arm action pad insertion groove 11.

[0025] In this embodiment, the aforementioned swing arm action pad 24 is U-shaped and is made of an elastic material; the elastic material is preferably rubber, but other similar materials with elastic recovery capabilities can also be used as the swing arm action pad 24. It is called a swing arm action pad 24 because it pushes the Z-axis backlash-free roller swing arm bend 211 upwards, allowing the aforementioned Z-axis backlash-free roller 22 to engage with the Z-axis backlash-free roller 22. Figure 2 The top wall of the illustrated lower slide rail cavity forms a good rolling pair, while the support roller 23, which essentially eliminates X-axis backlash, forms a good rolling pair with the bottom wall of the lower slide rail cavity, thus achieving the dual purpose of eliminating both Z-axis and X-axis backlash. Furthermore, the Z-axis backlash-eliminating roller arm 21 has a lever effect.

[0026] See you later Figure 1 A pair of spaced-apart upper slide rail Y-direction backlash elimination mechanisms 3 are provided on the front side and rear side of the aforementioned upper slide rail 1 along its length, and at positions between the aforementioned Z-direction backlash elimination mechanisms 2 located at the left and right ends. Therefore, there are four upper slide rail Y-direction backlash elimination mechanisms 3.

[0027] The aforementioned upper slide rail front Y-direction backlash elimination mechanism 3 includes a Y-direction backlash elimination roller frame 31 and a Y-direction backlash elimination roller 32. Both ends of the Y-direction backlash elimination roller frame 31 are fixed to the upper slide rail 1 by roller frame fixing screws 311. The Y-direction backlash elimination roller 32 is rotatably arranged in the middle of the Y-direction backlash elimination roller frame 31 via the Y-direction backlash elimination roller shaft 321.

[0028] Depend on Figure 1 As shown, a transmission box clearance opening 12 is formed at the center of the lower part of the front side of the aforementioned upper slide rail 1 along its length direction, and a transmission box seat screw hole 13 is formed at the left and right ends corresponding to the transmission box clearance opening 12.

[0029] Furthermore, a central control support fixing seat 14 protruding from the upper surface of the upper slide rail 1 is formed on the upper front side and the upper rear side of the aforementioned upper slide rail 1 along its length direction.

[0030] Furthermore, a pair of center console mounting holes 141 are provided at the left and right ends of the front side and the left and right ends of the rear side of the aforementioned center console support mounting base 14 along its length direction, and at corresponding positions.

[0031] Please see Figure 2 And combined Figure 1 ,exist Figure 2 The image shows a sliding rail 4, whose front side along its length forms a lead screw cavity 41, and its rear side along its length forms a tank chain cavity 42. The lead screw cavity 41 and the tank chain cavity 42 are separated by a cavity partition strip 43. A lead screw 411 is disposed in the lead screw cavity 41, while a tank chain 421 for regulating and controlling wire harnesses or cables is disposed in the tank chain cavity 42.

[0032] exist Figure 2 The diagram also shows a front zipper head 5 connected to the front left and right ends of the upper slide rail 1, and a rear zipper head 6 connected to the rear left and right ends of the upper slide rail 1. The front zipper heads 5 are connected to... Figure 1 The upper guide groove of the lead screw cavity, shown and provided on the lower slide rail 4, cooperates with the zipper 412 for protecting the upper opening portion of the lead screw cavity 41 in the longitudinal direction. Then, the zipper head 6 engages with the zipper 412, which is also made of... Figure 1The tank chain cavity upper guide groove shielding zipper 422, shown and disposed on the lower slide rail 4, cooperates with the aforementioned tank chain cavity upper guide groove shielding zipper 422 for shielding the upper opening portion of the tank chain cavity 42 along its length. Furthermore, a rear zipper head 6 located at the rear right end of the upper slide rail 1 is also connected to the end of the tank chain 421. The aforementioned... Figure 1 The support roller shaft pin screw 231 shown is inserted into the zipper head lower connecting cavity 15 formed on the lower front and rear left and right ends of the upper slide rail 1, respectively. Figure 1 (Shown) The lower part of the front and rear zipper heads 5 and 6 are connected to each other, while the upper part of the front and rear zipper heads 5 and 6 respectively enters the zipper head connecting cavity 142 formed at the left and right ends of the hollow platform support fixing seat 14 and is fixed to the upper slide rail 1 by screws.

[0033] exist Figure 2 The diagram also shows the motor 71 and wiring harness electrical connection module 72 of the upper slide rail movement drive mechanism 7. The wiring harness introduced by the tank chain 421 is electrically connected to the wiring harness electrical connection module 72, which is electrically connected to the motor 71. The wiring harness electrical connection module 72 is electrically connected to the various functional components of the central control panel via wiring. The aforementioned motor 71 is a servo motor with forward and reverse rotation functions.

[0034] Since the front and rear sides of the lower part of the upper slide rail 1 along its length are located in the aforementioned screw cavity 41 and tank chain cavity 42 respectively, the Z-axis backlash elimination roller 22 of the aforementioned upper slide rail Z-axis backlash elimination mechanism 2 structure system located in front of the upper slide rail 1 forms a rolling pair with the top wall of the screw cavity 41, and the support roller 23 forms a rolling pair with the bottom wall of the screw cavity 41. The Y-axis backlash elimination roller 32 of the aforementioned upper slide rail Y-axis backlash elimination mechanism 3 structure system located in front of the upper slide rail 1 forms a rolling pair with the front cavity wall of the screw cavity 41. Similarly, the Z-axis backlash elimination roller 22 of the aforementioned upper slide rail Z-axis backlash elimination mechanism 2 structure system located behind the upper slide rail 1 forms a rolling pair with the top wall of the tank chain cavity 42, and the support roller 23 forms a rolling pair with the bottom wall of the tank chain cavity 42. The Y-axis backlash elimination roller 32 of the aforementioned upper slide rail Y-axis backlash elimination mechanism 3 structure system located behind the upper slide rail 1 forms a rolling pair with the rear cavity wall of the tank chain cavity 42.

[0035] The applicant needs to clarify that: although the transmission box of the upper slide rail moving drive mechanism 7 is in Figure 2 Although not shown in the diagram, its transmission connection with the lead screw 411, its transmission connection with the motor shaft of the motor 72, and its working principle—such as the upper slide rail 1 moving left or right along the lead screw 411 under the drive of the motor 72, causing the central control panel (also not shown in the diagram) to move accordingly—are all conventional technologies in the field and will not cause confusion for those skilled in the art. Furthermore, in Figure 1The image shows the gearbox clearance opening 12 and the gearbox fixing screw hole 13 for fixing the gearbox base.

[0036] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A Z-axis backlash elimination structure for a car center console slide rail, wherein the car center console slide rail includes an upper slide rail (1); the Z-axis backlash elimination structure includes one upper slide rail Z-axis backlash elimination mechanism (2) disposed at the lower left and right ends of the front side and the lower left and right ends of the rear side of the upper slide rail (1) along its length direction, characterized in that: The upper slide rail Z-axis backlash elimination mechanism (2) includes a Z-axis backlash elimination roller swing arm (21), a Z-axis backlash elimination roller (22), a support roller (23), and a swing arm action pad (24). At one end of the Z-axis backlash elimination roller swing arm (21) facing the swing arm action pad (24), a Z-axis backlash elimination roller swing arm bend (211) is formed, folded towards the upper slide rail (1). The Z-axis backlash elimination roller (22) is rotatably mounted on the side of the Z-axis backlash elimination roller swing arm (21) facing away from the upper slide rail (1) via a Z-axis backlash elimination roller shaft (221). The support roller (23) is located on the Z-axis backlash elimination roller swing arm. (21) At one end away from the Z-axis backlash-free roller swing arm bend (211) and on the side opposite to the upper slide rail (1), the support roller (23) is rotatably mounted on the support roller shaft pin screw (231), which is connected to the upper slide rail (1) after passing through the Z-axis backlash-free roller swing arm (21). The swing arm action pad (24) is embedded in the upper slide rail (1) at a position corresponding to the lower part of the Z-axis backlash-free roller swing arm bend (211), and the Z-axis backlash-free roller swing arm bend (211) is supported on the upper surface of the swing arm action pad (24).

2. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 1, characterized in that: On the front and rear sides of the upper slide rail (1), and at the position corresponding to the Z-direction backlash-free roller swing arm bend (211), there are swing arm action pad embedding grooves (11), and the swing arm action pads (24) are fitted into the swing arm action pad embedding grooves (11).

3. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 1 or 2, characterized in that: The swing arm action pad (24) is U-shaped.

4. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 3, characterized in that: The swing arm action pad (24) is made of an elastic material; the elastic material is rubber.

5. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 1, characterized in that: A pair of spaced-apart upper slide rail Y-direction clearance mechanisms (3) are provided on the front side and the rear side of the upper slide rail (1) in the length direction, and at the position between the Z-direction clearance mechanism (2) located at the left and right ends.

6. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 5, characterized in that: The aforementioned upper slide rail front Y-direction backlash elimination mechanism (3) includes a Y-direction backlash elimination roller frame (31) and a Y-direction backlash elimination roller (32). Both ends of the Y-direction backlash elimination roller frame (31) are fixed to the upper slide rail (1) by roller frame fixing screws (311). The Y-direction backlash elimination roller (32) is rotatably arranged in the middle of the Y-direction backlash elimination roller frame (31) through the Y-direction backlash elimination roller shaft (321).

7. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 1 or 6, characterized in that: A transmission box clearance opening (12) is formed at the center of the lower part of the front side of the upper slide rail (1) along its length direction, and a transmission box seat screw hole (13) is opened at the left and right ends corresponding to the transmission box clearance opening (12).

8. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 7, characterized in that: A central control support fixing seat (14) is formed on the upper front side and the upper rear side of the upper slide rail (1) along the length direction. The central control support fixing seat (14) protrudes from the upper surface of the upper slide rail (1).

9. The Z-axis backlash-free structure of the automotive center console slide rail according to claim 8, characterized in that: A pair of central control panel mounting holes (141) are provided at the left and right ends of the front side and the left and right ends of the rear side of the central control panel support mounting base (14) along the length direction.

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