Cam transmission kinematic pair and automobile interior decoration part

Abstract

The present invention relates to a cam-driven kinematic pair, wherein the cam comprises a cone rotatable around a central axis and a track groove on the cone, wherein the track groove cooperates with a moving part to drive the moving part to move along a directional axis, wherein the central axis intersects with the directional axis and is not perpendicular to the directional axis. According to the automotive interior component including the above-mentioned cam-driven kinematic pair of the present invention, when the cover plate moves between a closed position and an open position, the bracket remains connected to the linkage mechanism and remains in a high position; when the bracket moves between a low position and a high position, the cover plate remains connected to the linkage mechanism and remains in an open position. According to the cam-driven kinematic pair of the present invention, the track groove drives the moving part to move along a directional axis intersecting with the central axis of the cam and not perpendicular to the directional axis. According to the automotive interior component of the present invention, the linkage mechanism drives the cover plate and the bracket separately while maintaining the connection.

Description

Technical Field

[0001] The invention relates to an automobile, and more particularly to a cam transmission kinematic pair and an automobile interior decoration component. Background Art

[0002] With the development of technology and demand, the wireless charging function of mobile phones is increasingly appearing in automotive interior products. Most of the existing solutions are to place the mobile phone in an open bracket / storage box or an armrest box with a large storage space, and add a wireless charging module in these areas to realize the wireless charging function of the mobile phone, while also taking into account the function of storing the mobile phone in the car. However, with the continuous improvement of customer experience and feelings, the continuous improvement of the demand for effective use of space in the car, and the continuous improvement of the demand for freedom of design, the existing solutions can no longer meet all the needs. Summary of the invention

[0003] In order to solve the problems of low space utilization in the above-mentioned prior art, the present invention provides a cam transmission kinematic pair and an automobile interior decoration part.

[0004] The cam transmission kinematic pair according to the present invention comprises a cam and a moving part, wherein the cam comprises a cone rotatable around a central axis and a track groove located on the cone, wherein the track groove cooperates with the moving part to drive the moving part to move along a directional axis, wherein the central axis intersects with the directional axis and is not perpendicular to the directional axis.

[0005] Preferably, the moving member has a shaft pin matched with the track groove, and the moving member remains stationary or moves with the rotation of the cam in response to the position of the shaft pin in the track groove.

[0006] Preferably, the trajectory groove comprises an arc segment and an extension segment, the arc segment is located at the same cone height of the cone, and the extension segment extends from the arc segment and changes in the cone height.

[0007] Preferably, the center of the arc segment is located on the central axis, and when the axle pin moves in the arc segment, the moving part remains stationary.

[0008] Preferably, when the shaft pin moves in the extension section, the moving part moves along with the rotation of the cam.

[0009] According to the present invention, the automobile interior decoration part including the above-mentioned cam-driven kinematic pair includes: a base providing an opening; a cover plate providing the kinematic part, which is movable along the directional axis between a closed position covering the opening and an open position completely exposing the opening relative to the base; a bracket, which is movable between a low position and a high position relative to the base; a linkage mechanism, which includes the cam connected to the cover plate to drive the cover plate to move between the closed position and the open position by rotating the cam around the central axis, and the linkage mechanism is connected to the bracket to drive the bracket to move between the low position and the high position; when the cover plate moves between the closed position and the open position, the bracket remains connected to the linkage mechanism and remains in the high position; when the bracket moves between the low position and the high position, the cover plate remains connected to the linkage mechanism and remains in the open position.

[0010] Preferably, the bracket comprises a groove, the linkage mechanism comprises a pin shaft, and the bracket maintains a high position or moves between the low position and the high position in response to the position of the pin shaft in the groove.

[0011] Preferably, the groove has a straight line segment and an arc segment connected to each other, and the center of the arc segment coincides with the axis center of the pin shaft; when the pin shaft moves in the straight line segment, the bracket moves between the low position and the high position; when the pin shaft moves in the arc segment, the bracket remains in the high position.

[0012] Preferably, the base includes a rectangular opening and an arc-shaped opening that are interconnected and through which the pin shaft passes; when the bracket moves between the low position and the high position, the rectangular opening covers the passing path of the straight line segment; when the bracket is located at the high position, the arc-shaped opening is aligned with the arc segment.

[0013] Preferably, the linkage mechanism further comprises a gear set connecting the pin shaft and the cam so as to simultaneously drive the rotation of the pin shaft and the cam through the rotation of the gear set.

[0014] Preferably, the gear set includes a first driven gear, a first transmission gear, a second driven gear, a driving gear and a second transmission gear, wherein the pin shaft is connected to the first driven gear to respond to the rotation of the first driven gear, the cam is connected to the second driven gear to respond to the rotation of the second driven gear, the first transmission gear connects the second driven gear and the driving gear, the second transmission gear connects the first driven gear and the driving gear, and the central axis of the cam coincides with the axis of the second driven gear.

[0015] According to the cam transmission kinematic pair of the present invention, the track groove drives the moving part to move along a directional axis that intersects with the central axis of the cam and is not perpendicular. According to the automotive interior parts of the present invention, the linkage mechanism drives the cover plate and the bracket separately while maintaining the connection. Specifically, the automotive interior parts of the present invention are car-mounted mobile phone charging boxes, in which the mobile phone is stored on a liftable bracket and can be covered by a cover body, so that the space inside the car is effectively utilized, the shape is beautiful and the degree of freedom is high. In addition, the automotive interior parts of the present invention are designed as a single-motor drive solution for cost control considerations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A is an overall schematic diagram of a car including a car-mounted mobile phone charging box according to a preferred embodiment of the present invention;

[0017] Figure 1B yes Figure 1A A schematic perspective view of the interior of a vehicle;

[0018] Figure 2 is an overall schematic diagram of a secondary instrument panel including a vehicle-mounted mobile phone charging box according to a preferred embodiment of the present invention;

[0019] Figure 3A-3G yes Figure 2 A partial enlarged view showing the first usage mode of the car mobile phone charging box;

[0020] Figure 4A-4H yes Figure 2 A partial enlarged view showing the second usage mode of the car mobile phone charging box;

[0021] Figure 5 yes Figure 2 The overall structural diagram of the car mobile phone charging box;

[0022] Figure 6 yes Figure 5 Exploded schematic diagram of parts;

[0023] Figure 7 yes Figure 6 Exploded view of the lower base;

[0024] Figure 8 yes Figure 6 A schematic diagram of the structure of the bracket;

[0025] Fig. 9 yes Figure 6 A top view of a cam;

[0026] Fig.10 yes Figure 6 A schematic diagram of the structure of the linkage mechanism;

[0027] Figures 11A-11C Shows Figure 6 The three critical states of the linkage mechanism;

[0028] Figures 12A-12H is corresponding to Figure 3A-3G A schematic diagram of a linkage mechanism of a vehicle-mounted mobile phone charging box;

[0029] Figure 13A-13B Is used to replace Figure 12E-12F The corresponding Figure 4E-4F Schematic diagram of the linkage mechanism of the car-mounted mobile phone charging box. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0031] According to a preferred embodiment of the present invention, the vehicle-mounted mobile phone charging box can be applied to Figure 1A In the vehicle V shown in the figure, the interior of the vehicle V includes the following Figure 1B As shown in the dashboard IP, sub-instrument panel FC and door panel DP, the vehicle-mounted mobile phone charging box can be arranged at the dashboard IP, sub-instrument panel FC and / or door panel DP and other locations.

[0032] This embodiment takes the arrangement of the vehicle-mounted mobile phone charging box on the auxiliary instrument panel FC as an example. Figure 2 As shown, the vehicle-mounted mobile phone charging box is arranged at the front end of the auxiliary instrument panel FC, and the front end has a charging port for the mobile phone MP (see Figure 3C-Figure 3E and Figure 4C-4F ) through an opening OP, so that the user can insert the mobile phone MP into the opening OP and place it in the car mobile phone charging box.

[0033] The vehicle-mounted mobile phone charging box of this embodiment has two usage modes. Figure 3A and Figure 4A As shown, the vehicle-mounted mobile phone charging box is in a closed state, and the cover plate 30 is in a closed position covering the opening OP. The user opens the vehicle-mounted mobile phone charging box through a physical switch or touch control, that is, drives the cover plate 30 to move to the open position and at least partially hide it in the auxiliary instrument panel FC, thereby exposing the opening OP. Figure 3B and Figure 4B The user inserts the mobile phone MP through the opening OP and places it on the bracket 40 below the opening OP, as shown in FIG. Figure 3C and Figure 4C After sensing the mobile phone MP, the vehicle-mounted mobile phone charging box sends a signal to drive the bracket 40 supporting the mobile phone MP to move the mobile phone MP from a high position to a low position and then start charging. Figure 3D and Figure 4D When the phone is fully charged or the user wants to pick up the phone, the first usage mode is as follows. Figure 3EAs shown, the user can directly take out the mobile phone, and after the car mobile phone charging box senses that the mobile phone is taken away, it sends a signal to drive the bracket 40 to move upward to a high position again, such as Figure 3F The user closes the car mobile phone charging box through a physical switch or touch control, that is, the cover plate 30 is driven to move to the closed position, as shown. Figure 3G The second use mode is that the user can use a physical switch or touch control to drive the bracket 40 to move upward to a high position, such as Figure 4E As shown, at this time, the user takes out the mobile phone, and the vehicle-mounted mobile phone charging box senses that the mobile phone is taken away, and sends a signal to drive the cover plate 30 to move to the closed position again, such as Figure 4F-4H shown.

[0034] like Figure 5-Figure 6 As shown, the vehicle-mounted mobile phone charging box includes a base 10, a linkage mechanism 20, a cover 30, a bracket 40 and a motor 50, wherein the cover 30 moves between an open position and a closed position relative to the base 10, and the bracket 40 moves between a high position and a low position relative to the base 10, and the linkage mechanism 20 is connected to the motor 50 to be driven by the motor 50 so that the cover 30 moves between an open position and a closed position and the bracket 40 moves between a high position and a low position.

[0035] like Figure 6 As shown, the base 10 includes an upper base 11 and a lower base 12 that are detachably connected, and the linkage mechanism 20 includes a pin 21, a gear set and a cam 23. The pin 21 is connected to the bracket 40, the cam 23 is connected to the cover plate 30, and the gear set connects the pin 21 and the cam 23.

[0036] The cover plate 30 is connected to the cover plate 30 by three first round tubes 13 extending along the moving direction of the cover plate 30 (see Fig.10 ) is connected to the upper base 11 so that the cover plate 30 moves between an open position and a closed position relative to the upper base 11 along the first circular tube 13. The upper base 11 provides the above-mentioned opening OP, and when the cover plate 30 is in the closed position, the opening OP is covered, and when the cover plate 30 is in the open position, the opening OP is exposed. Figure 6 As shown, the cover plate 30 has a cover plate shaft pin 31, and the cam 23 includes a cone 231 and a track groove 232 located on the cone 231, and the track groove 232 cooperates with the cover plate shaft pin 31 (see Fig.10 ), so that the rotation of the cam 23 drives the position of the cover plate shaft pin 31 in the track groove 232 to change, and then drives the position of the cover plate 30 to change. Fig. 9 As shown, the track groove 232 includes an arc segment 2321 located at the same cone height of the cone 231 (from the starting point Z0 to the transition point Z1), and an extension segment 2322 extending from one end of the arc segment 2321 in the direction of decreasing cone height (from the transition point Z1 to the end point Z2). Fig.10When the cover plate shaft pin 31 is located in the arc segment 2321, as the cam 23 rotates, the cover plate 30 remains stationary because the center of the arc segment 2321 coincides with the axis of the cam 23; when the cover plate shaft pin 31 is located in the extension segment 2322, as the cam 23 rotates, the cover plate 30 also moves accordingly.

[0037] The linkage mechanism 20, the bracket 40 and the motor 50 are respectively connected to the lower base 12. Specifically, Figure 7 As shown, the lower base 12 includes an upper shell 121 and a lower shell 122, the linkage mechanism 20 and the motor 50 are arranged between the upper shell 121 and the lower shell 122, and the bracket 40 is connected to the bracket 40 by two second round tubes 14 extending along the moving direction of the bracket 40 (see Figure 5 ) is connected to the lower part of the lower shell 122 so that the bracket 40 moves between the high position and the low position along the second circular tube 14 relative to the lower shell 122. Figure 8 As shown, the bracket 40 includes a groove 41, and the pin 21 passes through the lower shell 122 and matches the groove 41 on the bracket 40, so that the movement of the pin 21 along the groove 41 drives the movement of the bracket 40. Specifically, the groove 41 has a straight line segment 411 and an arc segment 412 connected to each other. When the pin 21 moves in the straight line segment 411, the bracket 40 also moves accordingly; when the pin 21 moves in the arc segment 412, the bracket 40 remains stationary because the center of the arc segment 412 coincides with the axis of the pin 21. Back Figure 7 The lower shell 122 includes a rectangular opening 1221 and an arc-shaped opening 1222 that are interconnected and through which the pin shaft 21 passes. When the bracket 40 moves between the low position and the high position, the rectangular opening 1221 covers the path through which the straight line segment 411 passes; when the bracket 40 is in the high position, the arc-shaped opening 1222 is aligned with the arc segment 412.

[0038] like Figure 6 , Fig.10 and Figures 11A-11C As shown, the gear set includes a first driven gear 22, a first transmission gear 24, a second driven gear 25, a driving gear 26 and a second transmission gear 27, wherein the pin shaft 21 moving along the groove 41 is connected to the first driven gear 22 to respond to the rotation of the first driven gear 22, the cam 23 is connected to the second driven gear 25 to respond to the rotation of the second driven gear 25, the driving gear 26 is connected to the motor 50, the first transmission gear 24 connects the second driven gear 25 and the driving gear 26, the second transmission gear 27 connects the first driven gear 22 and the driving gear 26, and the axis center of the cam 23, the axis center of the second driven gear 25 and the center of the arc segment 2321 coincide with each other.

[0039] Back to Figure 6The vehicle-mounted mobile phone charging box also includes an infrared / distance sensor 71, a stop sensor 72 and a position sensor 73 respectively connected to the motor 50 for communication, wherein the infrared / distance sensor 71 is connected to the bracket 40 to sense the mobile phone MP placed in the bracket 40 (see Figure 3C-Figure 3E and Figure 4C-4F ), two stop sensors 72 are connected to the lower base 12 to sense the high position and low position of the bracket 40 respectively, and two position sensors 73 are connected to the lower base 12 to sense the closed position and open position of the cover 30 respectively. In addition, the vehicle-mounted mobile phone charging box also includes a charging module 60, which is located below the lower shell 122 of the lower base 12 to detect the mobile phone MP placed therein (see Figure 3D and Figure 4D ) for charging.

[0040] The following describes the working principle of the car mobile phone charging box. Fig. 12A As shown, the cover plate 30 is in a closed position covering the opening OP. At this time, the cover plate shaft pin 31 on the cover plate 30 is located on the extension section 2322 of the track groove 232, the bracket 40 is located at a high position, and the pin shaft 21 is located on the arc segment 412 of the groove 41. The user turns on the car mobile phone charging box through a physical switch or touch control, so that the motor 50 drives the driving gear 26 to drive the first transmission gear 24, the second driven gear 25 and the cam 23 to rotate in sequence on the one hand, and drives the second transmission gear 27, the first driven gear 22 and the pin shaft 21 to rotate in sequence on the other hand. As the pin shaft 21 rotates, the position of the pin shaft 21 in the arc segment 412 changes. Since the center of the arc segment 412 coincides with the axis center of the pin shaft 21, the change in the position of the pin shaft 21 in the arc segment 412 will not cause the bracket 40 to move. As the cam 23 rotates, the position of the cover plate shaft pin 31 on the extension section 2322 changes. Since the extension section 2322 extends at different heights of the cone 231, the change in the position of the cover plate shaft pin 31 on the extension section 2322 causes the cover plate 30 to move. Fig. 12B As shown, when the cover plate shaft pin 31 is located at the critical point between the extension section 2322 and the arc section 2321 (corresponding to Fig. 9 When the position sensor 73 senses that the cover plate 30 is in the open position and sends a signal to close the motor 50, the pin 21 moves to the boundary of the arc segment 412 and the straight segment 411. At the same time, the cover plate 30 moves to the open position to expose the opening OP. At this time, the position sensor 73 senses that the cover plate 30 is in the open position and sends a signal to close the motor 50.

[0041] like Figure 12C-Figure 12DAs shown, when the user places the mobile phone MP in the bracket 40 under the opening OP, the infrared / distance sensor 71 senses the mobile phone MP and sends a signal to start the motor 50 to drive the gear set, the cam 23 and the pin 21 to continue to rotate, and the cover plate shaft pin 31 enters the arc segment 2321 from the critical point between the extension segment 2322 and the arc segment 2321 and changes its position in the arc segment 2321. Since the center of the arc segment 2321 coincides with the axis of the cam 23, the change in the position of the cover plate shaft pin 31 in the arc segment 2321 will not cause the movement of the cover plate 30. At the same time, the pin 21 moves from the critical point between the arc segment 412 and the straight segment 411 to the straight segment 411 and changes its position in the straight segment 411, driving the bracket 40 to move from the high position to the low position. When the bracket 40 moves to the low position, the stop sensor 72 senses that the bracket 40 is in the low position and sends a signal to turn off the motor 50. When the support 40 moves downward, the mobile phone MP senses the charging module 60 (see Figure 6 ) starts charging.

[0042] When the mobile phone MP is fully charged or the user wants to pick up the mobile phone MP, Figure 12E-12G As shown, directly take out the mobile phone MP, the infrared / distance sensor 71 senses that the mobile phone MP is taken away and sends a signal to start the motor 50, or Figure 13A-13B As shown, the motor 50 is started by a physical switch or touch control to rotate in the reverse direction to drive the bracket 40 to move to the high position before taking out the mobile phone MP. After the motor 50 is started, the gear group drives the pin 21 to move to the critical point of the straight line segment 411 and the arc segment 412, and drives the cam 23 to rotate until the cover plate shaft pin 31 is located at the critical point of the extension segment 2322 and the arc segment 2321. In this process, the bracket 40 moves from the low position to the high position, and the cover plate 30 remains stationary. When the bracket 40 moves to the high position, the stop sensor 72 senses it and sends a signal to turn off the motor 50.

[0043] like Fig.12H As shown, when the mobile phone MP is taken out, the infrared / distance sensor 71 senses that the mobile phone MP has been taken away and sends a signal to start the motor 50 to drive the cam 23 and the pin 21 to continue to rotate in the opposite direction through the gear set. Then the pin 21 moves in the arc segment 412 and does not drive the bracket 40, and the bracket 40 remains in a high position. The cam 23 is driven by the gear set, so that the cover plate shaft pin 31 changes position in the extension segment 2322, and then drives the cover plate 30 to move from the open position to the closed position. When the cover plate 30 moves to the closed position, the position sensor 73 senses it and sends a signal to turn off the motor 50.

[0044] The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The above embodiment of the present invention can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the description of the present invention fall within the scope of protection of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A cam transmission kinematic pair, It is characterized in that The cam transmission motion pair includes a cam and a moving part, wherein the cam includes a cone rotatable around a central axis and a track groove located on the cone, wherein the track groove cooperates with the moving part to drive the moving part to move along a certain directional axis, and the central axis intersects with the directional axis and is not perpendicular to it.

2. The cam transmission kinematic pair according to claim 1, It is characterized in that The moving part has a shaft pin matched with the track groove, and the moving part remains stationary or moves with the rotation of the cam in response to the position of the shaft pin in the track groove.

3. The cam transmission kinematic pair according to claim 2, It is characterized in that The track groove includes an arc segment and an extension segment, the arc segment is located at the same cone height of the cone, and the extension segment extends from the arc segment and changes in the cone height.

4. The cam transmission kinematic pair according to claim 3, It is characterized in that The center of the arc segment is located on the central axis, and when the shaft pin moves in the arc segment, the moving part remains stationary.

5. The cam transmission kinematic pair according to claim 3, It is characterized in that When the shaft pin moves in the extension section, the moving part moves along with the rotation of the cam.

6. An automotive interior component comprising a cam drive kinematic pair according to any one of claims 1 to 5, It is characterized in that The automotive interior parts include: Providing an open base; providing a cover of the moving member, movable relative to the base along the orientation axis between a closed position covering the opening and an open position completely exposing the opening; a bracket, movable between a low position and a high position relative to the base; A linkage mechanism, comprising the cam connected to the cover plate to drive the cover plate to move between the closed position and the open position by rotating the cam around the central axis, and the linkage mechanism is connected to the bracket to drive the bracket to move between the low position and the high position; When the cover plate moves between the closed position and the open position, the bracket remains connected to the linkage mechanism and remains in the high position; When the bracket moves between the low position and the high position, the cover plate remains connected to the linkage mechanism and remains in the open position.

7. The automotive interior component according to claim 6, It is characterized in that The bracket includes a groove, the linkage mechanism has a pin shaft, and the bracket maintains a high position or moves between the low position and the high position in response to the position of the pin shaft in the groove.

8. The automotive interior component according to claim 7, It is characterized in that The groove has a straight line segment and an arc segment connected to each other, and the center of the arc segment coincides with the axis of the pin; when the pin moves in the straight line segment, the bracket moves between the low position and the high position; when the pin moves in the arc segment, the bracket remains in the high position.

9. The automotive interior component according to claim 8, It is characterized in that The base includes a rectangular opening and an arc-shaped opening that are interconnected and through which a pin shaft passes; when the bracket moves between the low position and the high position, the rectangular opening covers the path of the straight line segment; when the bracket is located at the high position, the arc-shaped opening is aligned with the arc segment.

10. The automotive interior component according to claim 7, It is characterized in that The linkage mechanism further includes a gear set connecting the pin shaft and the cam so as to simultaneously drive the rotation of the pin shaft and the cam through the rotation of the gear set.

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