Device for moving motor vehicle seat backwards and forwards
By integrating the motor and electronic processing units in the bridge of the seat translation device of the motor vehicle and optimizing the layout of the electronic processing units, the problem of the motor type that the prior art cannot adapt to the operation of the electronic processing unit is solved, and the device size maintenance is achieved and the effectiveness of motor control.
Patent Information
- Application Number
- CN202420991574.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-05-25
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing motor vehicle seat translation device cannot adapt to the type of motor that requires the operation of the electronic processing unit, and it is difficult to maintain the original size of the device when integrating the electronic processing unit.
The motor and electronic processing unit are integrated in the bridge and the layout and design of the electronic processing unit are optimized to make its length compliant, with a width less than or equal to the motor width, and aligned with the motor to maintain the basic dimensions of the device.
The integration of the electronic processing unit with the motor as close as possible is achieved, maintaining the device in a dimension similar to the prior art, while providing the ability to control and interact with the motor.
Smart Images
Figure CN222512160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device, which is used for making a motor vehicle seat move backward and forward in translation, and vice versa. Background Art
[0002] It is known to produce a device for moving a motor vehicle seat backward and forward in translation, and vice versa, comprising two slides. Each slide comprises a fixed part integral with the vehicle floor and a movable part integral with the seat. The slides are linear. They are substantially parallel to each other and parallel to the translational movement. They are arranged substantially horizontally. The device also comprises a linear bridge connected to the two slides substantially perpendicularly to the two slides. The device also comprises a motor, and the latter is integrated into the bridge in such a way that the axis of the motor is parallel to the axis of the bridge. The motor is a motor of the type having a rotating shaft, which has two outlets / power outputs on either side of the motor along its axis. The device also comprises two transmission shafts, which are themselves also integrated into the bridge and extend from one end of the motor shaft to one of the slides in the slides respectively. A reducer is arranged on each of the slides in the slides, usually a worm gear reducer, which is driven to rotate by the motor and drives the movable part of the slide integral with the seat to translate.
[0003] Such devices are known to motorize the alternating rearward and forward movement of a motor vehicle seat along the X axis. They are used for motors of the type that do not require an electronic processing unit.
[0004] The present invention proposes to reuse such a device and to adapt it to a type of motor that requires an electronic processing unit to operate. It is then necessary to integrate the electronic processing unit into the device, preferably without excessively modifying the dimensions of said device. Utility Model Content
[0005] The utility model proposes to provide a device for moving a motor vehicle seat backward and forward and vice versa, the device comprising: two straight slides, which are basically parallel to each other, parallel to the translation and basically horizontal movement; a straight bridge member, which connects the two slides and is basically perpendicular to the two slides; a motor, which is integrated into the bridge member, and the axis of the motor is parallel to the axis of the bridge member; and two transmission shafts, which extend from one end of the motor shaft to one of the slides, respectively, wherein the device also includes an electronic processing unit that interacts with the motor, and the electronic processing unit is integrated into the bridge member.
[0006] Specific features or embodiments that may be used alone or in combination are:
[0007] - the motor is arranged on the bridge and the electronic processing unit is arranged below the bridge,
[0008] - the electric motor is arranged below the bridge and the electronic processing unit is arranged on the bridge,
[0009] - the electronic processing unit is length-compliant so as to remain within the dimensions of the bridge,
[0010] - the width of the electronic processing unit is less than or equal to the width of the motor,
[0011] -The transmission shaft is a flexible shaft,
[0012] - the electronic processing unit is arranged in front of the bridge,
[0013] - the electronic processing unit is arranged at the rear of the bridge,
[0014] the electronic processing unit comprises a printed circuit and components mounted on the printed circuit, and at least the largest component is mounted on a face of the printed circuit board facing the interior of the bridge,
[0015] the electronic processing unit comprises a first connector for connecting and attaching the electronic processing unit to the motor, and power components of the electronic processing unit are arranged on the portion of the printed circuit farthest from the motor,
[0016] the electronic processing unit comprises a second connector for connecting the electronic processing unit to the outside, the electronic processing unit being centered relative to the axis of the motor, the width of the electronic processing unit being at most equal to the width of the motor, and the second connector being centered relative to the axis of the motor,
[0017] -The motor comprises a first device, such as a fin, for preventing rotation relative to the bridge around the axis of the motor, and the bridge comprises a second anti-rotation device in addition to the first anti-rotation device, such as a slit, which is respectively capable of accommodating at least one of the fins, the first anti-rotation device making it repeat during the rotation of the motor around the intermediate X-axis of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be better understood by reading the following description which is given by way of example only and by referring to the accompanying drawings, in which:
[0019] [ Figure 1 ] shows in perspective a seat mounted on a mobile device,
[0020] [ Figure 2 ] shows a mobile device in a perspective view.
[0021] [ Figure 3 ] is shown in exploded perspective Figure 2 The device,
[0022] [ Figure 4 ] shows the bridge in perspective,
[0023] [ Figure 5 ] shows an exploded top view Figure 4 The bridge piece,
[0024] [ Figure 6 ] is shown in cross-section Figure 4 The bridge piece.
[0025] [ Figure 7 ] shows a bridge according to another embodiment in a top view,
[0026] [ Figure 8 ] shows an exploded top view Figure 7 The bridge piece,
[0027] [ Fig. 9 ] shows the motor and electronic processing unit in top view,
[0028] [ Fig.10 ] shows the motor and electronic processing unit assembly in perspective view,
[0029] [ Fig.11 ] shows a top view Fig.10 The component is integrated into the left-hand bridge.
[0030] [ Fig.12 ] shows a top view Fig.10 The component is integrated into the right-hand bridge.
[0031] [ Fig.13 ] The previous view shows Fig.10 Components,
[0032] [ Fig.14 ]The anti-rotation device is shown in a cross-sectional view. DETAILED DESCRIPTION
[0033] refer to Figure 1 The present invention relates to a device 1 for moving a motor vehicle seat S in translation backwards and forwards, and vice versa.
[0034] like Figure 2 and Figure 3As shown more specifically, such a device 1 comprises two rectilinear slides 2. The two slides 2 are substantially parallel to each other and to the translational movements they define and allow. In the configuration mounted on the vehicle, these slides 2 are substantially horizontal. Each slide 2 comprises two rectilinear portions that can slide relative to each other in the direction of the slide 2 (in the sagittal, longitudinal direction in the on-board configuration, or along the X axis in the position conventionally used for motor vehicles), as shown in FIG. Figure 1 One straight portion is fixed relative to the floor of the vehicle to which it is attached, while the other straight portion is fixed relative to the seat S to which it is attached. In addition, the sliding movement of one portion relative to the other allows the seat S to move in translation backward and forward.
[0035] The device 1 also includes a linear bridge 3, which extends from one slide 2 to the other slide and is arranged substantially perpendicular to the two slides 2. The device 1 also includes a motor 4. The latter is integrated into the bridge 3 in such a way that the axis of the motor 4 is aligned with the extension axis of the bridge 3. The device 1 also includes two transmission shafts 5. Each transmission shaft 5 extends from one end of the shaft of the motor 4 to one of the slides 2, the shaft rotating integrally with the shaft of the motor. Therefore, the rotational movement of the motor 4 is transmitted to the slide 2 via the transmission shaft 5. At the level of the slide 2, there is a worm-type reducer, not shown, the worm wheel is integral with the transmission shaft 5, and the worm is integral with the slide part 2 fixed to the seat S. The reducer converts the rotational movement from the motor 4 into a translational movement of the part of the slide 2 attached to the seat S, and therefore into a translational movement of the seat S relative to the vehicle.
[0036] Such devices are known and precede the present invention. Recently, it is expected to replace the motor 4 with a brushless DC motor 4 or BLDC motor. However, such a motor 4, which provides multiple advantages, requires an electronic processing unit 6, which did not exist before. The electronic processing unit 6 enables the motor to interact with the outside by providing control and power to the motor 4. In addition, the motor 4 includes at least one sensor. The electronic processing unit 6 also interacts with the at least one sensor by supplying power to the at least one sensor and by processing the measurement signal in order to modify the electrical control of the motor 4.
[0037] It is desirable to integrate the electronic processing unit 6 as closely as possible to the electric motor 4 , while substantially maintaining the dimensions of the device 1 according to the prior art without the electronic processing unit 6 .
[0038] Furthermore, according to one characteristic, an electronic processing unit 6 interacting with the electric motor 4 is integrated into the bridge 3 .
[0039] This advantageously enables delivery of a complete device 1 having substantially the same dimensions, so as to allow integration and / or upgrade replacement similar to the prior art.
[0040] Conventionally, the motor 4 is arranged above the bridge 3. Figures 4 to 6 According to another feature, the electronic processing unit 6 is arranged below the bridge 3. Furthermore, according to this embodiment, the electronic processing unit 6 is arranged on the opposite side of the motor 4. Such an arrangement below the bridge 3 or between the bridge 3 and the floor of the vehicle on which the device 1 is mounted allows the bridge 3 to provide the electronic processing unit 6 with mechanical protection against vibrations.
[0041] Alternatively, the motor 4 may be arranged below the bridge 3 , and the electronic processing unit 6 may be arranged above the bridge 3 .
[0042] According to another feature, the electronic processing unit 6 is also protected by a cover 14 .
[0043] According to another feature, Figures 2 to 14 , the electronic processing unit 6 is advantageously length-compliant so as to remain within the dimensions of the bridge 3. Thus, the electronic processing unit 6 can be housed in the volume of the bridge 3, thereby maintaining the pre-existing dimensions of the bridge 3 and of the device 1, as defined in the absence of the electronic processing unit 6. This implies that the length of the electronic processing unit 6 extends so as to allow it to follow the main extension of the bridge 3 along the Y direction.
[0044] According to another feature, the width of the electronic processing unit 6 is less than or equal to the width of the motor 4. This allows the electronic processing unit to be housed in a bridge 3 whose width is able to accommodate the width of the motor 4 and therefore the width of the electronic processing unit 6, the latter being aligned with the motor 4.
[0045] According to another advantageous feature, the transmission shaft 5 is preferably a flexible shaft. Such a feature makes it possible, on the one hand, to limit the noise of the device in operation and, on the other hand, to facilitate the connection of said transmission shaft 5, including in the presence of possible misalignments. Said flexible shaft 5 is preferably arranged in a non-rotating sheath 5' so as to protect the surrounding parts from possible interferences during rotation.
[0046] According to another characteristic, more specifically in Figures 7 and 8 , Figures 10 to 14, the electronic processing unit 6 is arranged in front of the bridge 3. Front is understood in this context to mean the device 1 installed in the vehicle, relative to the vehicle. Such a frontal arrangement is advantageous because it mechanically protects the processing unit 6. The bridge 3 serves in this context as a shield between the electronic processing unit 6 and possible shocks. These possible shocks are mainly caused by the rear of the seat S, typically by the feet of a passenger located behind the seat S, or by objects stored in the luggage compartment and jolted during sudden braking.
[0047] According to another alternative feature, the electronic processing unit 6 is arranged behind the bridge 3 .
[0048] According to a preferred embodiment, Figure 5 , Figure 8 , Fig. 9 In FIG. 5 , it is shown that the electronic processing unit 6 is constructed around a printed circuit 7. Components 8, 9 are mounted on this printed circuit 7, which is preferably rigid and flat.
[0049] According to another feature, applicable whatever the arrangement of the electronic processing unit 6 , including below or in front of the bridge 3 , all components 8 , 9 and at least the largest components 8 , 9 are mounted on the face of the printed circuit 7 facing the inside of the bridge 3 .
[0050] The printed circuit 7 thus forms an additional shielding in order to mechanically protect all or at least the largest components from mechanical stresses.
[0051] It has been seen that the electronic processing unit 6 must interact electrically with the motor 4. In addition, according to another feature, the electronic processing unit 6 comprises a first connector 12b. This first connector 12b is complementary to the first connector 12a so as to be able to selectively connect and disconnect. The first connector 12a is integral with the motor 4 and is radially flush with the motor. The first connectors 12a, 12b make it possible to connect and interlock the electronic processing unit 6 with the motor 4. This is in Figure 5 , Figure 8 and Fig. 9 .
[0052] After this interlocking, the electronic processing unit 6 is arranged close to the motor 4. This may be disadvantageous because Fig. 9 As shown, the electric machine 4 generates heat primarily in the hot zone ZC.
[0053] Furthermore, according to another characteristic, the design of the electronic processing unit 6 is performed with geographical separation constraints of the power components 8 and of the logic components 9. During the wiring of the printed circuit 7 of the electronic processing unit 6, the power components 8, which are more sensitive to heat, are arranged in at least one zone Z-, which is farthest from the motor 4, while the logic components 9 can be arranged more closely in at least one zone Z+, which is close to the motor 4 and close to its thermal zone ZC. Such an arrangement facilitates the cooling of the power components 8 and in particular protects the capacitors from the heat of the motor 4.
[0054] According to the prior art, the motor 4 and the two transmission shafts 5 are respectively mounted in a first configuration for a left-hand seat and in a second configuration for a right-hand seat, the second configuration being symmetrical to the first configuration with respect to the sagittal plane. It is desirable to retain these configurations, which comprise the device 1 comprising the electronic processing unit 6 according to the invention.
[0055] To this end, according to one embodiment, the assembly comprising the motor 4 and the electronic processing unit 6 is advantageously implemented so as to have similar dimensions after a rotation of 180° about the X axis. In addition, according to another characteristic, the electronic processing unit 6 has substantially symmetrical dimensions relative to a horizontal plane or XY plane.
[0056] To this end, the electronic processing unit 6 is centered relative to the axis of the electric motor 4 ; its width is at most equal to the width of the electric motor 4 .
[0057] Furthermore, the electronic processing unit 6 advantageously comprises a second connector 13 in order to be able to connect to the outside. The outside is understood in this context to be another processing unit arranged in the vehicle, such as a seat processing unit responsible for all settings of the seat S. Such a second connector, which enables the electronic processing unit 6 to be connected to the outside, is itself also centered relative to the axis of the electric motor 4, such as Fig.10 and Fig.13 As shown. Therefore, the assembly including the motor 4 and the electronic processing unit 6 is symmetrical with respect to the horizontal XY plane passing through the axis of the motor 4. Therefore, the assembly can be based on Fig.11 The left-hand configuration shown in FIG. 1 is integrated into the bridge 3, or after being rotated 180° around the middle X axis of the bridge 3, and can also be based on Fig.12 The right-hand configuration shown in FIG. 1 is integrated into the bridge 3 .
[0058] In order to be able to correctly transmit the rotational movement to the transmission shaft 5, the motor 4 advantageously includes an anti-rotation device between the body of the motor 4 and the bridge 3 that houses it. This anti-rotation device must be functional, both when the motor 4 is mounted in a left-hand configuration and in a right-hand configuration. In addition, according to another feature, the motor 4 includes a first anti-rotation device 10 around the axis of the motor relative to the bridge 3, and the bridge 3 includes a second anti-rotation device 11 complementary to the first anti-rotation device 10, these anti-rotation devices 10, 11 are repeated during a 180° rotation of the motor 4 around the median X-axis of the bridge 3. As Fig.14 As shown, the first anti-rotation device 10 may be at least one radial fin 10, and the second anti-rotation device 11 may be as many slits 11 as the fins 10, each slit 11 being able to accommodate the at least one fin 10. Fig.14 As shown, the fins 10 / slots 11 may be vertical or parallel to the printed circuit 7 .
[0059] The present invention has been described and illustrated in detail in the drawings and the foregoing description. This must be considered as illustrative and given by way of example, rather than limiting the present invention to this description alone. Many alternative embodiments may be employed.
[0060] Reference numerals list
[0061] 1: Device,
[0062] 2: Slideway,
[0063] 3: Bridge piece,
[0064] 4: Motor,
[0065] 5: Axis,
[0066] 6: Electronic processing unit,
[0067] 7: Printed circuit,
[0068] 8: Power components,
[0069] 9: Logical components,
[0070] 10: First anti-rotation device (motor),
[0071] 11: Second anti-rotation device (bridge),
[0072] 12: First connector (motor / electronic processing unit),
[0073] 13: Second connector (electronic processing unit / external,
[0074] 14: Covering parts,
[0075] S: Seat,
[0076] ZC: Thermal power plant area,
[0077] Z+: The heat-higher area of the electronic processing unit,
[0078] Z-: The lower heat zone of the electronic processing unit.
Claims
1. A device (1) for moving a motor vehicle seat (S) backwards and forwards, for moving a motor vehicle seat (S) in translation backwards and forwards and vice versa, comprising: Two linear slides (2), which are substantially parallel to each other, parallel to the translational and substantially horizontal movement; a linear bridge (3), which connects the two slides (2) and is substantially perpendicular to the two slides (2); a motor (4), which is integrated into the bridge (3), the axis of the motor (4) being parallel to the axis of the bridge (3); and two transmission shafts (5), which extend from one end of the motor (4) shaft to one of the slides (2), respectively, characterized in that the device (1) also includes an electronic processing unit (6) that interacts with the motor (4), and the electronic processing unit (6) is integrated into the bridge (3).
2. The device (1) for moving a motor vehicle seat (S) backward and forward according to claim 1, wherein the motor (4) is arranged on the bridge (3) and the electronic processing unit (6) is arranged below the bridge (3).
3. The device (1) for moving a motor vehicle seat (S) backward and forward according to claim 1, wherein the motor (4) is arranged below the bridge (3) and the electronic processing unit (6) is arranged on the bridge (3).
4. Device (1) for moving a motor vehicle seat (S) backwards and forwards according to any one of claims 1 to 3, wherein the electronic processing unit (6) is length-compliant so as to remain within the dimensions of the bridge (3).
5. The device (1) for moving a motor vehicle seat (S) backwards and forwards according to any one of claims 1 to 3, wherein the width of the electronic processing unit (6) is less than or equal to the width of the motor (4).
6. Device (1) for moving a motor vehicle seat (S) backwards and forwards according to any one of claims 1 to 3, wherein the transmission shaft (5) is a flexible shaft.
7. Device (1) for moving a motor vehicle seat (S) backwards and forwards according to claim 1, wherein the electronic processing unit (6) is arranged in front of the bridge (3).
8. Device (1) for moving a motor vehicle seat (S) backwards and forwards according to claim 1, wherein the electronic processing unit (6) is arranged behind the bridge (3).
9. A device (1) for moving a motor vehicle seat (S) backward and forward according to claim 7 or 8, wherein the electronic processing unit (6) comprises a printed circuit (7) and components (8, 9) mounted on the printed circuit (7), and wherein at least the largest components (8, 9) are mounted on the surface of the printed circuit (7) facing inwardly towards the bridge (3).
10. A device (1) for moving a motor vehicle seat (S) backward and forward according to claim 7 or 8, wherein the electronic processing unit (6) includes a first connector (12), which enables the electronic processing unit (6) to be connected and interlocked with the motor (4), and wherein the power components (8) of the electronic processing unit (6) are arranged on the part of the printed circuit (7) farthest from the motor (4).
11. A device (1) for moving a motor vehicle seat (S) backward and forward according to claim 7 or 8, wherein the electronic processing unit (6) includes a second connector (13), which enables the electronic processing unit (6) to be connected to the outside, and wherein the electronic processing unit (6) is centered relative to the axis of the motor (4), the width of the electronic processing unit is at most equal to the width of the motor (4), and the second connector (13) is centered relative to the axis of the motor (4).
12. A device (1) for moving a motor vehicle seat (S) backward and forward according to claim 7 or 8, wherein the motor (4) includes a first anti-rotation device (10) around the axis of the motor relative to the bridge (3), and the bridge (3) includes a second anti-rotation device (11) complementary to the first anti-rotation device (10), the first anti-rotation device (10) causing the first anti-rotation device to repeat during the rotation of the motor (4) around the intermediate X-axis line of the bridge (3).