Flip driving device

Abstract

The utility model discloses a flip cover driving device, which relates to the technical field of opening and closing piece driving devices and comprises a shell, a rotating position sensor, a motor, a clutch, a planetary speed reducing mechanism and at least two stages of gear speed reducing mechanisms, and the motor, the clutch, the planetary speed reducing mechanism and the at least two stages of gear speed reducing mechanisms are sequentially mounted in the shell and used for transmitting power. The rotational position sensor is disposed between the clutch and the planetary reduction mechanism. The number of signals received by the rotating position sensor is increased by optimizing the arrangement of the rotating position sensor, so that the monitoring precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of opening and closing member driving devices, in particular to a flip cover driving device. Background Art

[0002] In order to improve the vehicle's comfort, electromechanical tilting drives are used in more and more motor vehicles, and the flap drive is used to electrically adjust the flap between an open position and a closed position.

[0003] The shell of the existing flip cover drive device is connected to the flip cover through a bracket and connected to the body of the motor vehicle through a hinge shaft; the flip cover device is built with a motor, a clutch and a two-stage gear reducer, and the power output by the motor is finally transmitted after gear reduction, thereby transmitting the movement to the flip cover; that is, during the electric opening and closing process, the drive device and the flip cover are flipped relative to the hinge shaft to realize the electric opening and closing of the flip cover. In this process, in order to monitor the position of the flip cover, a rotation position sensor is set in the flip cover, but it is found in practice that there is a problem of low monitoring accuracy. Utility Model Content

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a flip cover driving device, which increases the number of signals received by the rotation position sensor by optimizing the arrangement of the rotation position sensor, thereby improving the monitoring accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flip cover driving device comprises: a housing, a rotation position sensor, and a motor, a clutch, a planetary reduction mechanism and at least two-stage gear reduction mechanisms which are sequentially installed in the housing and used to transmit power. The rotation position sensor is installed in the housing and is arranged between the clutch and the planetary reduction mechanism.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The rotary position sensor is adjusted to the front end of the reduction mechanism, where the shaft rotates faster. Therefore, after adjusting the position, the magnetic ring of the rotary position sensor can increase the rotation angle several times at the same switching angle, thereby increasing the number of monitored signals and improving the monitoring accuracy.

[0009] In some other embodiments, the housing is split into multiple shell sections along its axial direction, and two adjacent shell sections are detachably sealed and connected to each other.

[0010] In some other embodiments, one of the shells has an inner wall provided with a first slide groove extending axially thereof and a clamping hole provided thereon, and also includes a connecting piece fixedly connected to the rotational position sensor, the connecting piece has a clamping head provided thereon, and the clamping head can slide along the first slide groove until it is clamped with the clamping hole.

[0011] In some other embodiments, a second slide groove is provided on the inner wall of the shell having the clamping hole, and the cross-section of the second slide groove gradually decreases along the axial direction of the third shell. The connecting member also includes a flat plate fixedly connected to the clamping head, and the side edge of the flat plate can slide along the second slide groove.

[0012] In some other embodiments, the housing includes a first shell, a second shell, a third shell, a fourth shell and a fifth shell connected in sequence, the motor is installed in the second shell, the clutch is installed in the third shell, and the planetary reduction mechanism and the two-stage gear reduction mechanism are installed in the fourth shell and the fifth shell.

[0013] In some other embodiments, a plug-in interface is provided on a side of the first shell facing away from the second shell, and further includes a plug-in component, which can be inserted into the plug-in interface.

[0014] In some other embodiments, the third shell and the fourth shell are provided with vertical first mounting holes, and the second shell and the fourth shell are provided with longitudinal second mounting holes.

[0015] In some other embodiments, the flip cover includes a rear cover, a trunk lid, a hood, and a door of a motor vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the connection between the device and the flip cover;

[0017] Figure 2 Schematic diagram of the external structure of the device;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure behind the hidden shell;

[0019] Figure 4 for Figure 2 A cross-sectional view of

[0020] Figure 5 This is a schematic diagram of the shell split structure;

[0021] Figure 6 is a schematic structural diagram of the third shell;

[0022] Figure 7 is a schematic diagram of the assembly of the connecting member and the third housing;

[0023] Figure 8 for Figure 7 A three-dimensional schematic diagram of the middle chuck and the chuck hole;

[0024] Fig. 9 for Figure 2 Schematic diagram of the back structure.

[0025] In the above drawings:

[0026] 1. Shell; 101. First shell; 102. Second shell; 103. Third shell; 1031. First slide groove; 1032. Second slide groove; 104. Fourth shell; 105. Fifth shell;

[0027] 2. Rotation position sensor; 3. Motor; 4. Electromagnetic clutch; 5. Mechanical clutch; 6. Planetary reduction mechanism; 7. Flip cover; 8. Hinge shaft; 9. Gear reduction mechanism;

[0028] 10. Connecting piece; 1001. Clamp; 1002. Flat plate;

[0029] 11. Cover plate; 12. Connector; 13. First mounting hole; 14. Second mounting hole. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; the structures described in the various embodiments can be freely combined without any conflict in structure or principle.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] The utility model proposes a flip cover driving device, such as Figures 1 to 3 As shown, it includes: a housing 1, a rotation position sensor 2, a motor 3, a clutch, a planetary reduction mechanism 6 and at least two-stage gear reduction mechanisms 9, wherein the motor 3, the clutch, the planetary reduction mechanism 6 and the gear reduction mechanism 9 are all assembled in the housing 1 in sequence, and the motor 3, the clutch, the planetary reduction mechanism 6 and the gear reduction mechanism 9 are sequentially connected in transmission, so that the power of the motor 3 is transmitted to the hinge shaft 8 connected to the vehicle body through the clutch, the planetary reduction mechanism 6 and the gear reduction mechanism 9; the housing 1 is connected to the flip cover 7 through the mounting point, and the housing 1 seals and protects the components installed therein; it should be understood that the structures of the motor 3, the clutch, the planetary reduction mechanism 6 and the gear reduction mechanism 9 themselves are prior art and will not be described in detail here; the rotation position sensor 2 is also installed in the housing, and the rotation position sensor 2 is configured between the clutch and the planetary reduction mechanism 6.

[0034] By adopting the above scheme, since the rotational position sensor 2 is adjusted to the front end of the reduction mechanism (planetary reduction mechanism 6 and gear reduction mechanism 9) (i.e., the input end of power), the rotating shaft here rotates faster. Therefore, after adjusting the position, the magnetic ring of the rotational position sensor 2 can increase the rotation angle multiple times at the same switching angle, thereby increasing the number of monitored signals and improving the monitoring accuracy.

[0035] Furthermore, the clutch comprises an electromagnetic clutch 4 and a mechanical clutch 5 , the electromagnetic clutch 4 and the mechanical clutch 5 are transmission-connected, and the electromagnetic clutch 4 is located at the input end of the mechanical clutch 5 .

[0036] The clutch can connect and cut off the power transmission, realizing the electric opening and closing of the 7-mechanism flip cover while retaining the manual opening and closing function to better meet customer needs.

[0037] Furthermore, the planetary reduction mechanism 6 is configured so that power is transmitted sequentially through the sun gear, the planetary gears and the planetary carrier; the planetary reduction mechanism 6 is used to reduce speed and increase torque, thereby gradually increasing the output torque of the motor 3. The planetary reduction mechanism 6 and the two-stage gear reduction mechanism 9 together form a three-stage reduction system. In practice, a heavier flip cover 7 can be opened and closed to meet the electric needs of different customers.

[0038] Furthermore, the rotation position sensor 2 is a Hall sensor.

[0039] Furthermore, in this embodiment, the gear reduction mechanism 9 has two-stage reduction.

[0040] In some other embodiments, the flip cover 7 includes the rear cover, trunk lid, cabin cover and door of the motor vehicle; when in use, the housing 1 of the driving device can be installed on the corresponding rear cover, trunk lid, cabin cover and door through the mounting point, and the driving device can correspondingly drive the rear cover, trunk lid, cabin cover and door to open and close as needed.

[0041] In some other embodiments, such as Figure 2 and Figure 5 As shown, the housing 1 is split into multiple housing sections along its axial direction (equivalent to the axial direction of the motor 3), and the two adjacent housings are detachably sealed and connected; illustratively, grooves are provided on the opposite end faces of the two adjacent housings, and a sealing gasket is embedded in the groove, and corresponding through holes are provided on the two adjacent housings, and the two adjacent housings are fixedly connected together by fasteners such as bolts, and the sealing gasket plays a sealing role.

[0042] Since the housing 1 is split into multiple shells along its axial direction and two adjacent shells are axially assembled and sealed, the requirements for the length and flatness of a single sealing surface are greatly reduced, thereby improving the overall waterproof performance of the product and optimizing the product processing and assembly structure.

[0043] Furthermore, if Figure 5 As shown, the housing 1 is specifically divided into a first housing 101, a second housing 102, a third housing 103, a fourth housing 104 and a fifth housing 105, the above housings are arranged in sequence from left to right, the end faces of two adjacent housings are sealed by a sealing gasket, and the two adjacent housings are fastened and connected by fasteners; more specifically, as Figure 4 As shown, the motor 3 is installed in the second housing 102, the clutch (electromagnetic clutch 4 and mechanical clutch 5) is installed in the third housing 103, and the planetary reduction mechanism 6 and the two-stage gear reduction mechanism 9 are installed in the fourth housing 104 and the fifth housing 105; in this way, each housing is easy to manufacture and the connection and sealing between adjacent housings are convenient and reliable.

[0044] In some other embodiments, in order to facilitate the installation of the rotation position sensor 2, such as Figure 3As shown, a connecting member 10 is also provided, the connecting member 10 is fixedly connected to the rotation position sensor 2, and a clamp 1001 is provided on the connecting member 10; a first slide groove 1031 extending along its axial direction is provided on the inner wall of the third housing 103, illustratively, as Figure 5 As shown, the first slide groove 1031 is "L" shaped, and two are arranged oppositely; the connecting member 10 can slide into the third shell 103 along the first slide groove 1031; in order to limit the connecting member 10, a clamping hole is also provided on the shell; Figure 7 As shown, during assembly, the connector 10 slides along the first slide groove 1031 with the clamping head 1001 until the clamping head 1001 is elastically deformed and inserted into the clamping hole, thereby completing the clamping connection between the connector 10 and the third housing 103, which is convenient for installation.

[0045] Furthermore, combined with Figure 8 As shown, a cover plate 11 is installed at one end of the third shell 103 away from the second shell 102, and a circular hole for the gear shaft to pass through is provided in the middle of the cover plate 11, and two above-mentioned clamping holes are provided below the cover plate 11. After assembly is completed, the clamping head 1001 is clamped into the clamping hole to complete the clamping connection between the connecting piece 10 and the third shell 103, which is convenient for assembly and disassembly.

[0046] More specifically, a positioning pin is provided at one end of the third shell 103, and a positioning hole is provided at a corresponding position of the cover plate 11. The positioning hole is sleeved outside the positioning pin to position the cover plate 11, thereby ensuring the accurate position of the clamping hole and enabling the clamping head 1001 to be quickly inserted.

[0047] In some other embodiments, such as Figure 3 As shown, the connector 10 also includes a flat plate 1002 fixedly connected to the clamp 1001; Figure 6 A second slide groove 1032 is also provided on the inner wall of the third shell 103. The second slide groove 1032 is located below the first slide groove 1031. In order to allow the flat plate 1002 to be inserted from one end of the second slide groove 1032, one end of the second slide groove 1032 close to the second shell 102 is open. In addition, the other end of the second slide groove 1032 is closed to limit the axial sliding of the connecting member 10 along the third shell 103; this end of the second slide groove 1032 and the clip jointly limit the axial movement of the rotation position sensor 2 along the shell 1.

[0048] More specifically, the cross-section of the second slide groove 1032 gradually becomes smaller along the axial direction of the third shell 103, that is, the cross-sectional area of ​​the second slide groove 1032 at one end close to the second shell 102 is larger than the cross-sectional area of ​​the other end, so that the second slide groove 1032 forms a trumpet shape, which is convenient for the side of the flat plate 1002 to be inserted into the second slide groove 1032; during assembly, the side of the flat plate 1002 slides along the second slide groove 1032, and the second slide groove 1032 guides the flat plate 1002 until the clamping head 1001 is clamped into the clamping hole of the cover plate 11, ensuring that the installation position of the rotation position sensor 2 is correct.

[0049] In some other embodiments, such as Figure 4 As shown, a plug interface is integrated on a side of the first housing 101 facing away from the second housing 102 , and a plug connector 12 is inserted into the plug interface; thus, the wiring harness arrangement of the rotational position sensor 2 is optimized.

[0050] In some other embodiments, such as Figure 1 and Fig. 9 As shown, a vertical first mounting hole 13 is provided on the third shell 103 and the fourth shell 104, and a longitudinal second mounting hole 14 is provided on the second shell 102 and the fourth shell 104; the first mounting hole 13 is connected to the bottom of the flip cover 7, and the second mounting hole 14 is connected to the vertical wall of the flip cover 7; by increasing the number of mounting holes and optimizing the arrangement position and connection direction of the mounting holes, the stability of the device after assembly is improved.

[0051] Further, the flip cover 7 (for intuitive display, Figure 1 Only a part of the flap 7 is shown. The flap 7 is surrounded by the skin on all sides to form an inner cavity. The device is arranged as a whole in the flap 7, which is more beautiful and protects the device.

Claims

1. A flip cover driving device, characterized in that: include: A housing (1), a rotational position sensor (2), and a motor (3) which is sequentially installed in the housing (1) and is used to transmit power, a clutch, a planetary reduction mechanism (6), and at least a two-stage gear reduction mechanism (9), wherein the rotational position sensor (2) is installed in the housing (1), and the rotational position sensor (2) is arranged between the clutch and the planetary reduction mechanism (6).

2. A flip cover driving device according to claim 1, characterized in that: The outer shell (1) is split into multiple shell sections along its axial direction, and two adjacent shell sections are detachably sealed and connected to each other.

3. A flip cover driving device according to claim 2, characterized in that: A first slide groove (1031) extending along the axial direction is provided on the inner wall of one of the shells, and a clamping hole is also provided on the shell, and also includes a connecting member (10) fixedly connected to the rotation position sensor (2), and a clamping head (1001) is provided on the connecting member (10), and the clamping head (1001) can slide along the first slide groove (1031) until it is clamped with the clamping hole.

4. A flip cover driving device according to claim 3, characterized in that: A second slide groove (1032) is provided on the inner wall of the shell having the clamping hole, and the cross-section of the second slide groove (1032) gradually becomes smaller along the axial direction of the shell (1). The connecting member (10) also includes a flat plate (1002) fixedly connected to the clamping head (1001), and the side edge of the flat plate (1002) can slide along the second slide groove (1032).

5. A flip cover driving device according to any one of claims 1 to 4, characterized in that: The housing (1) comprises a first housing (101), a second housing (102), a third housing (103), a fourth housing (104) and a fifth housing (105) which are connected in sequence; the motor (3) is installed in the second housing (102); the clutch is installed in the third housing (103); the planetary reduction mechanism (6) and the two-stage gear reduction mechanism (9) are installed in the fourth housing (104) and the fifth housing (105).

6. A flip cover driving device according to claim 5, characterized in that: A plug-in interface is provided on a side of the first shell (101) facing away from the second shell (102), and further comprises a plug-in connector (12), wherein the plug-in connector (12) can be inserted into the plug-in interface.

7. The flip cover driving device according to claim 5, characterized in that: The third shell (103) and the fourth shell (104) are provided with vertical first mounting holes (13), and the second shell (102) and the fourth shell (104) are provided with longitudinal second mounting holes (14).

8. A flip cover driving device according to claim 1, 2, 3, 4, 6 or 7, characterized in that: The flip cover (7) comprises a rear cover, a trunk cover, a cabin cover and a door of a motor vehicle.

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