POSITION DETECTION DEVICE FOR A CABLE AND ELECTRONIC HAND TRANSMISSION WITH THIS DEVICE

Abstract

The present disclosure relates to a position detection device for a cable that can prevent damage to or interruption of a cable due to fluctuations of a guide tube when a shift lever is actuated, and to an electronic transmission that incorporates this device.The position detection device for a cable may comprise: a sleeve with a hollow section through which the cable passes; a guide tube extending from the sleeve and connected to the hollow section, having a through-hole formed therein through which the cable passes; a rod coupled to the cable and moving with it, positioned inside the guide tube and having a transmission unit that transmits a movement position of the cable; a scanning module installed in the guide tube that detects a position of the transmission unit in order to detect the movement of the cable; and a wire, one end of which is connected to the scanning module and which extends around the sleeve by winding.

Description

TECHNICAL AREA

[0001] The present disclosure relates to a position detection device for a cable that can prevent damage to or interruption of a cable due to fluctuations of a guide tube when a shift lever is operated, without the need to use an expensive wire or a flexible printed circuit board, and to an electronic shift transmission that incorporates this device. BACKGROUND

[0002] In a manual transmission, a selector cable and a shift cable are tensioned according to the operation of a shift lever installed in a vehicle compartment, and a selector lever and a shift lever installed on one side of the transmission are each operated independently of each other in such a way that the power can be transmitted according to a gear shift through the appropriate gear from a multitude of gears provided in the transmission.

[0003] With a manual transmission, the driver must operate a clutch pedal to control the clutch engagement during gear changes. When driving with frequent gear changes, the driver may experience fatigue as the clutch pedal is used more frequently. To address this issue, an automatic transmission can be installed in a vehicle; however, this does not eliminate the characteristics and effects of a manual transmission.

[0004] Accordingly, a component for controlling a clutch can be attached to a shift lever with a model of a manual transmission. A sensor can be attached to the shift lever, and the applicant of the present disclosure, for example, proposes a position detection device for a shift cable of an electronic manual transmission in Korean patent publication No. 2020-0131364.

[0005] However, in the position detection device described above, the guide tube oscillates when shifting up and down and when selecting left and right as the shift lever is operated. This means that a wire connecting a sensing module on the guide tube to a control unit of the vehicle or transmission is frequently twisted or bent to such an extent that there is a high risk of damage or breakage. This necessitates the use of an expensive, high-quality wire or a flexible circuit board with excellent durability. OVERVIEW

[0006] One aspect of the present disclosure is the provision of a position detection device for a cable that can prevent damage to or interruption of a cable due to fluctuations of a guide tube when a shift lever is operated, without the need to use an expensive wire or a flexible printed circuit board, as well as an electronic shifting transmission that incorporates this device.

[0007] According to one aspect of the present disclosure, a device for determining the position of a cable may comprise: a sleeve with a hollow section through which the cable can be passed; a guide tube extending from the sleeve and connected to the hollow section, having a through-hole formed therein through which the cable is passed; a rod coupled to the cable and moving with the cable, arranged inside the guide tube and comprising a transmission unit that transmits a movement position of the cable; a scanning module installed in the guide tube that detects a position of the transmission unit in order to detect the movement of the cable; and a wire, one end of which is connected to the scanning module and which is lengthened by winding around the sleeve.

[0008] The wire can be wrapped around the outside of the sleeve with at least one turn.

[0009] The wire includes a first connector at one end and a second connector at the other end; the scanning module can include a circuit board and a sensor mounted on the circuit board; and the first connector can be connected to the circuit board.

[0010] The sleeve comprises a main sleeve and a cover sleeve, wherein the main sleeve and the cover sleeve may each have a plurality of locking sections for connecting to each other.

[0011] The main sleeve may include a handle for gripping and a reinforcing rib positioned between the handle and the main sleeve.

[0012] The second connector can be attached to the reinforcing rib, and the main sleeve can include a first wire support section formed on the reinforcing rib to support the wire.

[0013] The main sleeve may have a second wire support section formed on an outer circumferential surface to support the wire.

[0014] The cover sleeve may have a third wire support section formed on an outer circumferential surface opposite the reinforcing rib to support the wire.

[0015] The cover sleeve may have a bending rib formed on an outer circumferential surface to guide an elongation direction of the wire when the wire is lengthened by winding it around the sleeve.

[0016] One end of the bending rib can be bent upwards and downwards in the direction of the scanning module.

[0017] The sleeve may include at least one fastening clamp which is attached in a direction perpendicular to an axial direction of the sleeve.

[0018] The sleeve can include a first retaining clip and a second retaining clip, wherein the first retaining clip can be inserted from the main sleeve and attached to the cover sleeve or secured by snap-lock, and the first retaining clip can be located on an opposite side of the locking section.

[0019] The second mounting bracket can be inserted from one side of the main sleeve and cover sleeve and coupled together with the main sleeve and cover sleeve, and the sleeve can be installed at an installation destination via the second mounting bracket.

[0020] The position detection device may further comprise a first protective cover connected to the guide tube to protect the scanning module, and a second protective cover connected to the cover sleeve to protect part of the wire.

[0021] The position detection device may further include an anti-sag fastening element that secures the wire and the first protective cover to prevent the wire from engaging in the sleeve due to sagging (loosening).

[0022] The wire can be arranged so that it is movable without being partially restrained by the sleeve, in order to accommodate a change in distance between the sleeve and the circuit board when the cable moves.

[0023] The sleeve can include a stop groove formed on at least one side of an opening adjacent to the guide tube; the guide tube can include a radially projecting stop projection; the stop projection can be positioned within the stop groove; and when an external force is applied, the stop projection can be prevented by a groove wall of the stop groove from rotating at an angle greater than a predetermined range.

[0024] According to one aspect of the present disclosure, an electronic transmission may comprise: a shift lever housing with a shift lever; a cable, one end of which is connected to the shift lever and is moved by actuation of the shift lever; and the position detection device, which is installed in the shift lever housing and configured as described above to detect the movement of the cable.

[0025] The position detection device may include a wire that connects a scanning module to a control unit and transmits a detection signal from the scanning module to the control unit, and the wire may be extended by at least one turn by winding it around the sleeve of the position detection device. BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0026] The above and other aspects, features and advantages of the present disclosure will be more clearly understood from the following detailed description in conjunction with the accompanying drawings, in which: Fig. 1 a perspective view of a position detection device for a cable according to the present disclosure, seen from one side; Fig. Figure 2 is a perspective view of a position detection device for a cable according to the present disclosure, seen from the other side; Fig. Figure 3 is a cross-sectional view of Fig. 2; Fig. Figure 4 is a perspective exploded view of Fig. 2; Fig. 5 and Fig. 6 are drawing figures showing the coupling of a sleeve; Fig. 7 and Fig. Figure 8 are drawings showing how to attach a protective cover; Fig. Figure 9 is a drawing figure showing an anti-rotation stop; and Fig. Figure 10 is a drawing showing an electronic transmission with a cable position detection device according to the present disclosure. DETAILED DESCRIPTION

[0027] The present disclosure is described in detail below with reference to exemplary drawing figures. When identifying components in the individual drawing figures, it should be noted that the same components are identified with the same numbers, even if they are shown in different drawing figures.

[0028] In this description (specification), terms such as "first," "second," "third," and similar may be used to describe different components. However, these terms do not restrict the order, size, position, importance, or similar aspects of the components and are used only to distinguish one component from another.

[0029] In this specification, the terms “top”, “bottom”, “front”, “back”, “left / right” and the like are defined in relation to directions based on a vehicle body or installation destination.

[0030] Fig. Figure 1 is a perspective view of a position detection device for a cable according to the present disclosure, when viewed from one side, and Fig. Figure 2 is a perspective view of a position detection device for a cable according to the present disclosure, when viewed from the other side. Furthermore, Fig. 3 a cross-sectional view of Fig. 2, and Fig. Figure 4 is a perspective exploded view of Fig. 2.

[0031] A device for determining the position of a cable 1 according to the present disclosure can comprise a sleeve 10, a guide tube 20, a rod 30, a scanning module 40 and a wire 60.

[0032] The sleeve 10 can be fixed at the installation location and designed such that the cable 2 can be passed through it. For example, the sleeve can be attached to a shift lever housing 3 (see Fig. 10) can be attached, and the cable can be attached using a shift lever 4 (see Fig. 10) are connected to form a shift cable that transmits the actuating force for shifting the vehicle. A more detailed description of the sleeve configuration will be given later.

[0033] The guide tube 20 can be installed so that it extends in a straight line from the sleeve 10 and can be provided with a through-hole 21 formed in it in the extended longitudinal direction (i.e., a longitudinal direction of the cable). The through-hole can be connected to a hollow section 13 of the sleeve, so that the cable 2 can be guided through the guide tube and the sleeve.

[0034] Since the cable 2 is inserted into the straight guide tube 20 as described above, the cable can move linearly in the guide tube in such a way that the scanning can be carried out according to the movement of the cable.

[0035] The rod 30 can be rigidly connected to the cable 2 and moved together with the cable, being partially positioned in the through-hole 21 of the guide tube 20. The rod can be longer than the guide tube. Furthermore, the rod can be equipped with a transmission unit 31 that transmits a movement position of the cable. The transmission unit can be arranged on the rod so that it is movable within the through-hole of the guide tube.

[0036] The rod 30 can slide in the through-hole 21 of the guide tube 20, and if the rod rotates in the through-hole, the accuracy of the scanning can deteriorate. To prevent this, the shape of an inner circumferential surface of the through-hole of the guide tube and the shape of an outer circumferential surface of the rod can optionally be designed as non-circular shapes such that linear movement of the rod is permitted and its rotation is restricted.

[0037] For example, the shape of the inner circumferential surface of the through-hole 21 and the shape of the outer circumferential surface of the rod 30 can be designed such that they have different cross-sectional shapes such as a non-circular polygon, an ellipse or combinations thereof and are coordinated in such a way that the rod cannot rotate in the through-hole of the guide tube 20 and only linear movement is possible.

[0038] The rod 30 can, for example, be made of a plastic material. For instance, a steel insert guide can be connected to the cable 2 by a drop forging process, and then a plastic rod can be attached to the insert guide by injection molding.

[0039] Furthermore, the rod 30 can be configured to extend in a straight line, and the guide tube 20 can also be configured to extend in a straight line, so that the transmission unit 31 can be moved along a predetermined straight path. Accordingly, even if the cable 2 moves up and down or left and right, the transmission unit can be positioned within a detection range of the scanning module 40 in such a way that the detection accuracy can be maintained.

[0040] The transmission unit 31 can, for example, contain a magnet; that is, a rod 30 can be provided for attaching the magnet to the cable 2. The transmission unit can be formed integrally with the rod by injection molding, but the present disclosure is not limited to this, and the transmission unit can be prepared separately and attached to the rod.

[0041] If the transmission unit 31 is prepared separately, a mounting groove 32 can be formed in the rod 30, into which the transmission unit is inserted and mounted. When the transmission unit is inserted into the mounting groove, it can be positioned so that it does not protrude beyond the outer circumferential surface of the rod.

[0042] As described above, when the transmission unit 31 is inserted into the mounting groove 32 in the rod 30, it cannot collide with the through hole 21 of the guide tube 20 when the rod moves, and damage caused by contact between the transmission unit and the guide tube can be prevented in such a way that the scanning performance can be maintained.

[0043] The scanning module 40 can be installed in a mounting groove 22 of the guide tube 20 and can detect the position of the transmission unit 31, which moves together with the cable 2, in order to detect the movement of the cable. For the installation of the scanning module, a sensor mounting section 23 with a mounting groove can be provided on one side of the guide tube, in which the scanning module can be attached.

[0044] When the scanning module 40 is mounted in the mounting groove 22 of the sensor mounting section 23, the position of the scanning module can be fixed, and the scanning module 40 and the transmission unit 31 can be arranged so that they correspond to each other. That is, in the through-hole 21 of the guide tube 20, the rotation of the rod 30 can be restricted and only linear movement is permitted, and the scanning module and the transmission unit can correspond to each other in their opposing positions such that the scanning module can accurately detect the position of the transmission unit according to the movement of the rod.

[0045] Optionally, the mounting groove 22 can be designed to align with the through-hole 21. This allows the scanning module 40, which is installed on the outer circumferential surface of the guide tube 20, and the transmission unit 31 of the rod 30, which is located inside the through-hole, to be clearly identified from each other, and prevents the magnetic force of the transmission unit 31, which contains a magnet, from decreasing.

[0046] This makes it possible to ensure a state in which the transmission unit 31 provided on the rod 30 and the scanning module 40 provided in the guide tube 20 are aligned with each other more reliably, so that the accuracy of the scanning can be improved.

[0047] The positions of the scanning module 40 and the transmission unit 31 are not limited to the example shown. They can be mounted in different positions as long as they correspond to each other and the acquisition performance is maintained.

[0048] The scanning module 40 can comprise a printed circuit board 41 and a sensor 42 mounted on the printed circuit board. Essentially, the printed circuit board can be mounted in the mounting groove 22 of the sensor mounting section 23, and a sensor can be arranged on the printed circuit board with an orientation towards the through-hole 21 of the guide tube 20.

[0049] The scanning module 40 can detect the change in position of the cable 2 based on a detection signal from the sensor 42 mounted on the circuit board 41. Furthermore, the circuit board can be equipped with a communication module to communicate, for example, with an upper control system of the vehicle and / or a control unit (90; see Fig. 10) to communicate with the gearbox via wires. For this purpose, the communication module of the circuit board can be connected to a line 60.

[0050] A Hall sensor, for example, can be used as sensor 42, but is not limited to this. If a Hall sensor is used, it can detect the change in the position of the cable by the transmission unit 31, i.e., a change in the magnetic flux of a magnet caused by the movement of the cable 2 and the rod 30.

[0051] Since the scanning module 40 is designed to extend in a longitudinal direction of the guide tube 20, or the transmission unit 31 is designed to extend in a longitudinal direction of the rod 30, a movement path of the rod, which is moved together with the cable 2, can be accommodated within a detection range of the scanning module.

[0052] If the cable 2 moves linearly in the guide tube 20 of the sleeve 10, the rod 30 moves in a straight line along the guide tube, and the scanning module 40 detects the change in position of the transmission unit 31 attached to the rod, so that the change in the position of the cable and its path of movement can be precisely determined and, accordingly, the execution of commands according to a specific actuation of the shift lever 4 can be precisely controlled.

[0053] Furthermore, the sleeve 10 can include a guide housing 50 that extends in a straight line on the opposite side of the guide tube 20. This allows the cable 2 to move in a straight line through the guide tube and the guide housing in the sleeve.

[0054] The guide housing 50 can comprise an outer tube 51 and an inner tube 52, wherein the outer tube and the inner tube are approximately tubular and a portion of the inner tube can be inserted into and fixed within the outer tube.

[0055] The outer tube 51 can have a stepped section 53 that projects radially from the center of the outer circumferential surface and extends circumferentially. Furthermore, the inside of the outer tube can have a first insertion section 54 into which a portion of the guide tube 20 is inserted on one side, and a second insertion section 55 into which a portion of the inner tube 52 is inserted on the other side.

[0056] The first insertion section 54 of the outer tube 51 forming the guide housing 50 can be designed in the form of a concave groove with an approximately spherical inner surface, and an end of the guide tube 20 inserted into the first insertion section can be designed to be approximately spherical such that the first insertion section of the outer tube and the end of the guide tube can form a rotary mechanism.

[0057] Accordingly, the guide tube 20 can be pivoted on one side of the guide housing 50 and the sleeve 10, thereby enabling an upward and downward movement or a left and right movement of the cable 2 and the rod 30.

[0058] The second insertion section 55 can be cylindrical, and a portion of the inner tube 52 can be inserted and secured. The second insertion section can be connected to the first insertion section 54 in such a way that the cable 2 can be guided through the guide housing 50.

[0059] One end of the inner tube 52 can be inserted into and secured in the second insertion section 55 of the outer tube 51. As described above, the inner tube can be designed to extend in a straight line on the other side of the outer tube, further increasing the extension length of the guide housing 50.

[0060] Based on the sleeve 10, the guide tube 20 and the guide housing 50 can each extend in a straight line in opposite directions such that a linear movement of the cable 2 can be guided more stably. That is, since a length extending in a straight line can be secured by the guide housing together with the guide tube, the linear movement of the cable can be carried out more precisely.

[0061] The wire 60 can be connected between the scanning module 40 and the control unit 90 and can transmit at least one detection signal from the scanning module to the control unit. In particular, a first connector 61 can be provided at one end of the wire and can be physically and electrically connected to a printed circuit board 41 that forms the scanning module. A second connector 62 can be provided at the other end of the wire and, for example, be electrically connected to a control unit of the transmission, the control unit being installed in or used in conjunction with an upper control system of the vehicle.

[0062] In addition to transmitting the detection signal, the wire 60 can also supply power to a sensor 42. For this purpose, the wire can be configured as a bundle of signal and power lines covered with an insulating material, but the wire configuration is not necessarily limited to this.

[0063] In a conventional position detection device, the wire connected between the scanning module 40 on the rod and the vehicle body can be twisted or bent with any up and down or left and right movement of the cable 2 and the rod 30, so that there is a high risk of the wire being damaged or cut.

[0064] The position detection device 1 of a cable according to the present disclosure can be characterized in that the wire 60 is supported by the sleeve 10 and extended by wrapping around the sleeve to prevent damage or separation, even if the wire 60 is deformed or bent due to the movement of the cable 2 and the rod 30.

[0065] Fig. 5 and Fig. Figure 6 are drawings illustrating the coupling of a sleeve.

[0066] As shown in the drawing figures, the sleeve 10 can comprise a main sleeve 11 and a cover sleeve 12. Since the sleeve is designed to be separated into a main sleeve and a cover sleeve, the advantage can be achieved that the sleeve can be easily manufactured using a single mold.

[0067] The main sleeve 11 can have a space for a hollow section 13, and the cover sleeve 12 can also have a space for a hollow section 13 such that, in the coupled state, the hollow section can be formed between the main sleeve and the cover sleeve to receive a section of the guide tube 20 and the guide housing 50.

[0068] A movement-prevention ridge 14, projecting from the inner circumferential surface, can be provided in the space of the main sleeve 11 and in the space of the cover sleeve 12. In the coupled state, the guide housing 50, housed in the sleeve 10, can be supported by the movement-prevention ridge 14 and sit in the hollow section 13, thus preventing it from moving axially (i.e., along the length of the cable) within the hollow section.

[0069] Furthermore, a radially concave clip fastening groove 15 can be provided on the outer circumferential surface of the main sleeve 11 and the cover sleeve 12. A second fastening clip 80, to be described later, can be inserted into the clip fastening groove to ensure the connection between the main sleeve and the cover sleeve and to prevent separation.

[0070] Furthermore, a stop groove 16, stepped in the axial direction and cut in the circumferential direction, can be provided in the sleeve 10 on at least one side of an opening adjacent to the guide tube 20. The stop groove, together with the stop projection 26 of the guide tube described below, can form an anti-rotation device.

[0071] To prevent the main sleeve 11 and the cover sleeve 12 from being arbitrarily separated from each other or moved or rotated relative to each other after assembly and connection with the cable 2, a plurality of elastically deformable locking sections 17 can be formed on an edge of the main sleeve and the cover sleeve.

[0072] For example, a plurality of locking projections can be configured as locking sections 17 in the main sleeve 11, and a plurality of locking holes can be configured as locking sections 17 in the cover sleeve 12. The plurality of locking projections and the plurality of locking holes can be provided to correspond to each other by one-to-one coupling in the main sleeve and the cover sleeve, respectively, such that the locking projections can be fitted into the corresponding locking holes or secured by snap-locking.

[0073] The arrangement, number and shape of the locking sections 17 are not limited to the example shown, and the arrangement, number and shape of the locking sections can be changed in an area in which the main sleeve 11 and the cover sleeve 12 can be firmly connected to each other.

[0074] The locking projection of the main sleeve 11 and the locking hole of the cover sleeve 12 can together form the locking section 17 of the sleeve 10, and the locking section serves as a means to prevent the main sleeve and the cover sleeve from being arbitrarily separated, while the main sleeve and the cover sleeve can be easily separated if necessary.

[0075] This means that the locking section 17, which consists of a locking projection and a locking hole, can maintain a state in which the main sleeve 11 and the cover sleeve 12 are coupled, and when an external force is applied, the main sleeve and the cover sleeve can be deformed such that the coupling between the main sleeve and the cover sleeve can be released. For this purpose, the sleeve 10 with a locking section can be made of a flexible and insulating material, such as plastic.

[0076] As described above, the sleeve 10 comprises a main sleeve 11 and a cover sleeve 12, and the main sleeve and the cover sleeve are designed such that they can be easily, quickly and securely connected to each other by means of the locking section 17, making assembly work very easy, light and safe.

[0077] For a more stable and reliable connection, the sleeve 10 can also include at least one fastening clip. For example, the sleeve can include a first fastening clip 70 and a second fastening clip 80, which are attached in a direction perpendicular to the axial direction (i.e., to the longitudinal direction of the cable).

[0078] The first fastening clip 70 can be inserted from one side of the sleeve 10 to the other side of the sleeve, e.g. from the main sleeve 11, and attached or snapped onto the cover sleeve 12.

[0079] The first fastening clip 70 can have an approximately curved U-shape and a pair of leg sections 71. Each leg section can have a detent step 72, which is formed by increasing the thickness of the leg section on a side surface, as well as a detent projection 73, which is formed at one end of the leg section.

[0080] To secure the first fastening clip 70, the main sleeve 11 and the cover sleeve 12 can have a plurality of detent holes 18 which are penetrated at appropriate locations.

[0081] When the leg of the first fastening clip 70 is pushed into a detent hole 18 of the main sleeve 11 and then reaches the detent hole 18 of the cover sleeve 12, the detent step 72 of each leg must not pass through the detent hole of the main sleeve and remain in contact with the main sleeve, and the detent projection 73 of each leg must be fitted or engaged in the corresponding detent hole of the cover sleeve.

[0082] For example, in the sleeve 10 the multiple locking sections 17 can be arranged only on a bottom side of the sleeve, and the first fastening clip 70 and the multiple detent holes 18 can be arranged on a top side of the sleeve, but the present disclosure is not limited to this.

[0083] Instead of the first fastening clip 70, several locking sections 17 can be arranged on both the top and bottom of the sleeve 10. However, since in this case all locking sections must be precisely aligned for assembly, assembly can become difficult if product tolerances accumulate. To prevent this, the first fastening clip is attached together with the locking section, and even if a tolerance exists, the first fastening clip can compensate for it, allowing for easy assembly.

[0084] The second fastening clip 80 can be inserted from one side of the sleeve 10 to the other side of the same, e.g. from a top of the main sleeve 11 and the cover sleeve 12, and coupled together with the main sleeve and the cover sleeve.

[0085] The second fastening clip 80 can be approximately U-shaped and have a pair of branching sections 81. The pair of branching sections, if their opposing side faces are referred to as inner faces, can have projecting sections 82 formed on the inner faces, so that the main sleeve 11 and the cover sleeve 12 can be prevented from separating while in close contact with each other.

[0086] Optionally, the second fastening clip 80 can also have a notched section 83 formed approximately along a U-shape to allow uniform elastic deformation.

[0087] For coupling the second fastening clip 80, the main sleeve 11 and the cover sleeve 12 can have clip fastening grooves 15 formed at corresponding locations on the outer circumferential surface of the main sleeve 11 and the cover sleeve 12. These clip fastening grooves can be interconnected such that a clip fastening groove extending in the circumferential direction of the sleeve 10 can be formed near an opening adjacent to the guide tube 20.

[0088] If one of the branch sections of the second fastening clip 80 is inserted into the clip fastening groove 15 of the main sleeve 11 and the other of it into the clip fastening groove 15 of the cover sleeve 12, and then an inner surface of the second fastening clip is in contact with the clip fastening groove of the sleeve 10 from the protruding section 82 on one side to the protruding section 82 on the other side, the coupling of the second fastening clip with the main sleeve and the cover sleeve, i.e. the coupling of the second fastening clip with the sleeve, can be completed.

[0089] Optionally, a pair of branch sections 81 can further include a locating groove 84 configured to extend in an upward and downward direction on an outer surface of each branch section to fix a position of the position sensing device when the position sensing device for a cable according to the present disclosure is installed in an installation destination, e.g., a switch lever housing 3. The locating groove can be inserted and fitted into a mounting wall (not shown) provided inside the switch lever housing.

[0090] Furthermore, the pair of branch sections 81 can have a coupling projection 85 that extends from a side face in the direction of the thickness (i.e., in the longitudinal direction of the cable). The coupling projection can be inserted into a coupling hole (not shown) formed by penetrating the fitting wall of the shift lever housing 3.

[0091] Due to the coupling between the mounting groove 84 and the mounting wall, as well as the coupling projection 85 and the coupling hole, the second fastening clip 80 can ensure that the main sleeve 11 and the cover sleeve 12 are stably coupled, while preventing separation, and additionally allow the sleeve 10 to be firmly installed on an installation target and fix the position of the position detection device 1 on the installation target.

[0092] The main sleeve 11 may include a handle 9 designed to allow a worker to grasp the main sleeve or the sleeve 10. The handle may be located on the top of the main sleeve, but is not limited to this.

[0093] Furthermore, the main sleeve 11 can have a reinforcing rib 19 arranged between the handle and the main sleeve to withstand a load exerted on the handle 9 when the assembled sleeve 10 is installed at the installation site. The reinforcing rib can be in the form of an approximately upright wall extending perpendicular to an axial direction of the sleeve (i.e., a longitudinal direction of the cable) and having a predetermined thickness; however, the shape of the reinforcing rib is not limited to the examples described and illustrated above.

[0094] Optionally, a second connector 62 can be attached to the other end of the wire 60 on the reinforcing rib 19. For this purpose, a mounting hole 19a can be formed in the reinforcing rib for mounting the second connector of the wire, and a mounting projection 62a, designed to fit into a mounting hole, can be provided on a side face of the second connector of the wire.

[0095] For example, the cross-sectional shapes of the mounting hole 19a and the mounting projection 62a can be designed such that they have different cross-sectional shapes such as a non-circular polygon, an oval or a combination thereof and are matched to each other in such a way that the second connector 62 of the wire 60 can be held in a fitted position without rotating in the mounting hole when it is attached to the reinforcing rib 19.

[0096] Additionally, a first wire support section 63 can be formed on the reinforcing rib 19 of the main sleeve 11 such that the wire 60 can be supported around the sleeve 10 without projecting excessively beyond the reinforcing rib and the main sleeve. In particular, the first wire support section can be formed in the form of a groove that extends concavely inwards from an edge of the reinforcing rib.

[0097] Furthermore, a second wire support section 64 can be provided on an outer circumferential surface of the main sleeve 11. In particular, the second wire support section can be in the form of a hook formed on the outer circumferential surface of the main sleeve. The second wire support section can be formed integrally with the main sleeve, but is not limited to this.

[0098] The cover sleeve 12 can further comprise a third wire support section 65, which is configured to support the wire 60 around the sleeve 10. In particular, the third wire support section can be in the form of a hook formed on an outer circumferential surface of the cover sleeve. The third wire support section can be located on a side opposite the reinforcing rib 19, i.e., on a lower surface of the cover sleeve, but is not limited to this. Furthermore, the third wire support section can be formed integrally with the cover sleeve, but is not limited to this.

[0099] Furthermore, the outer circumferential surface of the cover sleeve 12 can be provided with a bending rib 66, which serves to define the direction of expansion of the wire when the wire 60 is held by the sleeve 10 and extends around the sleeve. The bending rib can project radially from the outer circumferential surface of the cover sleeve and extend in an upward and downward direction, thereby dividing the expansion path of the wire.

[0100] If an upper part of the bending rib 66 is bent towards the rear of the sleeve 10, i.e., towards the scanning module 40, the direction of extension of the wire 60, which extends from the underside of the sleeve, can be changed rearward so that the wire can extend further rearward. The rearward-extending wire can easily be connected to the circuit board 41, which forms the scanning module 40 on the guide tube 20 located at the rear of the sleeve, via the first connector 61 provided at one end of it.

[0101] As in the Fig. 1, Fig. 2 to Fig. As shown in Figure 3, the wire 60 can be supported, for example, by a first wire support section 63 of the reinforcing rib 19 on the upper side of the sleeve 10, a second wire support section 64 formed on the left side of the sleeve, and a third wire support section 65 formed on the underside of the sleeve. These wire support sections can support the wire in such a way that the wire does not project beyond the outer circumference of the sleeve, but is in close contact with the outer circumferential surface of the sleeve and can move in the longitudinal direction of the wire.

[0102] On the right side of the sleeve 10, i.e. on the side of the cover sleeve 12, the wire 60 must not be held in close contact with the outer circumferential surface of the sleeve, but may only be guided through the bending rib 66 in the direction of expansion in such a way that the first connector 62 can be connected to the circuit board 41 of the scanning module 40 on the guide tube 20.

[0103] In the position detection device 1 of a cable according to the present disclosure, the wire 60 can be so long that it can be wound around the outside of the sleeve 10 by at least one turn.

[0104] For this reason, a long wire 60 can be retained in part of the sleeve 10 to avoid interference with surrounding components, while the long wire is not retained in the remaining parts of the sleeve to facilitate the connection with the scanning module 40, i.e. the circuit board 41.

[0105] Since the wire 60 is not partially restrained by the sleeve 10, the wire 60 can sufficiently accommodate the change in distance between the sleeve 10 and the circuit board 41 when the cable 2 and the rod 30 move up and down or left and right.

[0106] If the length of the wire 60 is insufficient when pivoting the guide tube 20, the wire can be shifted longitudinally in the first to third wire support sections 63, 64 and 65 to prevent damage or breakage of the wire.

[0107] By making the length of the wire 60 longer than in the past, the position detection device 1 of a cable according to the present disclosure can therefore absorb fluctuations of the guide tube 20 caused by the movement of the wire and not by deformation or bending of the wire, thus preventing damage or breakage of the wire, which makes the use of an expensive wire or a flexible printed circuit board of high quality and excellent durability unnecessary.

[0108] Fig. 7 and Fig. Figure 8 are illustrations showing how to attach the protective cover.

[0109] The position detection device 1 of a cable 1 according to the present disclosure can further comprise a first protective cover 91 for protecting a scanning module 40, in particular a printed circuit board 41, and a second protective cover 92 for protecting a part of the line 60.

[0110] The first protective cover 91 can be connected to the guide tube 20. Since the guide tube is pivotable, the first protective cover is designed and arranged in such a way that it is not connected to or interferes with the sleeve 10.

[0111] The first protective cover 91 can be attached or snapped onto the guide tube 20, but is not limited to this and can also be connected by screwing or gluing, for example.

[0112] The first protective cover 91 can protect not only the circuit board 41 of the scanning module 40, but also the first connector 61 connected to the circuit board and one end of the cable 60. For this purpose, an inner surface of the first protective cover can be spaced away from the first connector to form a free space, and one side of the sleeve 10 of the first protective cover can be opened.

[0113] To prevent the wire 60 from interfering with the sleeve 10 due to sagging, an anti-sag fastener 93 can be provided, connecting the wire and the first protective cover 91. A molded plastic strip can be used as the anti-sag fastener, but the configuration of the anti-sag fastener is not limited to this.

[0114] The first protective cover 91 can be designed to cover at least the scanning module 40 and is connected to the guide tube 20, thereby preventing the scanning module from being exposed from the outside, thus preventing contamination and damage to the scanning module.

[0115] The second protective cover 92 can be connected to the cover sleeve 12 under the sleeve 10. Since the cover sleeve does not retain the wire 60, an inner surface of the second protective cover can be spaced away from the cover sleeve to form a free space in which the wire can move, and an upper and a lower surface thereof can be open.

[0116] The second protective cover 92 can be attached or snapped onto the cover sleeve 12, but is not limited to this and can be connected to it, for example, by screwing or gluing.

[0117] The second protective cover 92 can be designed to cover a portion of the wire 60 that is to be connected to the cover sleeve 12, while being spaced apart from it, thus preventing any part of the wire from being exposed from the outside, thereby preventing contamination and damage to the wire and ensuring the movement of the wire.

[0118] Fig. Figure 9 is a drawing illustrating an anti-rotation stop.

[0119] The position detection device 1 of a cable according to the present disclosure can further comprise an anti-rotation stop as described above. The anti-rotation stop can comprise a stop groove 16 formed on at least one side of an opening next to a guide tube 20 in a sleeve 10, and a stop projection 26 projecting radially from at least one of the left and right sides of the guide tube.

[0120] When the guide tube 20 and the guide housing 50 are installed in the sleeve 10, the stop projection 26 can be located in the stop groove 16 and rotate in a circumferential direction in the stop groove when an external force is applied; however, the stop projection can be prevented from rotating at an angle greater than a predetermined range by a groove wall forming the stop groove, thus preventing excessive rotation of the guide tube.

[0121] If, for example, a worker forcibly rotates the guide tube 20 during the assembly of the position detection device 1 of a cable on a gearbox, the anti-rotation stop can prevent the guide tube from rotating by an angle greater than a predetermined range, thereby achieving the advantage of preventing damage to or separation of the wire 60 in advance.

[0122] Fig. Figure 10 is a drawing showing an electronic transmission with a cable position detection device according to the present disclosure.

[0123] The electronic transmission according to the present disclosure can comprise a shift lever housing 3 with a shift lever 4, a cable 2, one end of which is connected to the shift lever and which is moved by actuating the shift lever, and a position detection device 1 installed in the shift lever housing for detecting the movement of the cable.

[0124] The electronic transmission can anticipate the shift lever 4's intention to engage a clutch when the lever is actuated. When the cable 2 connected to the shift lever moves, the scanning module 40 in the position detection device 1 can detect the change in cable position and control the clutch's operating state according to the shift lever's movement.

[0125] If the shift lever 4 is moved, the scanning module 40 provided in the position detection device 1 can detect the movement of the cable 2, and the scanning module can transmit the intention to switch according to the change in the position of the cable to the control unit 90 in such a way that an engaged state of the clutch can be switched according to the actuation of the shift lever.

[0126] In this case, cable 2 can be referred to as the shift cable; one end of the cable can be connected to shift lever 4 and the other end to a gearshift lever of the transmission. When the gearshift lever is actuated, the linear movement of the cable initiates a gear shift.

[0127] The position detection device 1 of the present disclosure, which refers to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 to Fig.The device described in section 9 can be permanently installed in the shift lever housing 3 and can be designed such that the cable 2 is guided through it. In particular, a guide tube 20 and a guide housing 50 can be arranged such that they extend in a straight line in a sleeve 10, which forms the position detection device, so that the cable can be guided through the guide tube 20 and the guide housing 50 by means of the sleeve.

[0128] Since the cable 2 moves in a straight line inside the guide tube 20 and the guide housing 50, the scanning can be carried out precisely according to the movement of the cable.

[0129] Furthermore, a rod 30 can be rigidly connected to the cable 2 with a transmission unit 30 for transmitting the position. The transmission unit can include a magnet.

[0130] A scanning module 40 can be installed in the guide tube 20, and the scanning module can detect the position of the transmission unit 31, which moves together with the cable 2. The scanning module can comprise a printed circuit board 41 and a sensor 42 mounted on the printed circuit board. A Hall sensor, for example, can be used as the sensor, but is not limited to this.

[0131] In the position detection device 1 of the present disclosure, when the cable 2 moves due to the actuation of the shift lever 4, the rod 30 can slide in the guide tube 20 and the guide housing 50 of the sleeve 10, and the scanning module 40 can detect the change in the position of the transmission unit 31 provided in the rod in such a way that a switching intention corresponding to the actuation of the shift lever can be detected quickly and accurately, so that the operating time of the clutch can be controlled precisely.

[0132] The position detection device 1 of the present disclosure can comprise a wire 60 connecting the scanning module 40 and the control unit 90, and the wire can be supported by the sleeve 10 and can be extended by winding it around the sleeve. The wire can be of a length sufficient to be wound at least one turn around the outside of the sleeve.

[0133] For this reason, a long wire 60 can be retained in a part of the sleeve 10 to avoid interference with surrounding components, while the long wire cannot be retained in the remaining parts of the sleeve to facilitate connection to the scanning module 40, i.e. the circuit board 41.

[0134] Since the wire 60 is not partially retained by the sleeve 10, the wire 60 can also adequately compensate for changes in distance between the sleeve 10 and the circuit board 41 when the cable 2 and the rod 30 move up and down or left and right.

[0135] Therefore, by configuring a longer wire length 60 than in the past, the position detection device 1 of the present disclosure can absorb fluctuations of the guide tube 20 caused by the movement of the wire and not by deformation or bending of the wire, thus preventing damage or breakage of the wire, thereby eliminating the need to use an expensive wire or a flexible printed circuit board of high quality and excellent durability.

[0136] As described above, according to one embodiment of the present disclosure, an inexpensive wire can be used instead of an expensive wire or a flexible printed circuit board of high quality and excellent durability, thereby significantly reducing the cost of the product.

[0137] Furthermore, according to one embodiment of the present disclosure, damage to or separation of a cable can be prevented in principle, thereby improving the quality of a vehicle to which it is attached and ultimately increasing the marketability of the vehicle.

[0138] The foregoing description merely illustrates the technical concept of the present disclosure, and a person skilled in the art in the field to which the present invention belongs may make various modifications and alterations without departing from the essential features of the present disclosure.

[0139] Therefore, the embodiments disclosed in this description and the drawings are not intended to limit, but rather to illustrate, the technical concept of the present disclosure, and the scope of protection of the technical idea of ​​the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure should be defined by the following claims, and all technical ideas within the equivalent scope of protection should be defined in such a way as to be included within the scope of protection of the present disclosure. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] KR 2020-0131364

[0004]

Claims

[1] Position detection device for a cable, comprising: a sleeve with a hollow part through which the cable can be passed; a guide tube extending from the sleeve and connected to the hollow part, in which a through hole is formed through which the cable runs; a rod coupled to the cable and moved together with the cable, which is arranged in the guide tube and has a transmission unit that transmits a movement position of the cable; a scanning module installed in the guide tube that detects the position of the transmission unit in order to monitor the movement of the cable; and a wire, one end of which is connected to the scanning module and which is extended by winding it around the sleeve. [2] Position detection device for a cable according to claim 1, wherein the wire is wound with at least one turn around the outside of the sleeve. [3] Position detection device for a cable according to claim 2, wherein the wire has a first connector at one end and a second connector at the other end, the scanning module comprises a circuit board and a sensor mounted on the circuit board, and the first connector is connected to the circuit board. [4] Position detection device for a cable according to claim 3, wherein the sleeve comprises a main sleeve and a cover sleeve, and the main sleeve and the cover sleeve each have a plurality of locking sections for connecting to each other. [5] Position detection device for a cable according to claim 4, wherein the main sleeve a handle for gripping, and includes a reinforcing rib that is positioned between the handle and the main sleeve. [6] Position detection device for a cable according to claim 5, wherein the second connector is attached to the reinforcing rib, and the main sleeve has a first wire support section formed on the reinforcing rib to support the wire. [7] Position detection device for a cable according to claim 5, wherein the main sleeve has a second wire support section formed on an outer circumferential surface to support the wire. [8] Position detection device for a cable according to claim 5, wherein the cover sleeve has a third wire support section formed on an outer circumferential surface opposite the reinforcing rib to support the wire. [9] Position detection device for a cable according to claim 4, wherein the cover sleeve has a bending rib formed on an outer circumferential surface to guide an expansion direction of the wire when the wire is expanded by winding around the sleeve. [10] Position detection device for a cable according to claim 9, wherein one end of the bending rib is bent upwards and downwards towards the scanning module. [11] Position detection device for a cable according to claim 4, wherein the sleeve has at least one fastening clip which is attached in a direction perpendicular to an axial direction of the sleeve. [12] Position detection device for a cable according to claim 11, wherein the sleeve has a first fastening clip and a second fastening clip, wherein The first fastening clip is inserted from the main sleeve and attached to or snapped into the cover sleeve, and the first fastening clip is located on an opposite side of the locking section. [13] Position detection device for a cable according to claim 12, wherein the second fastening clip is inserted from one side of the main sleeve and the cover sleeve and coupled together with the main sleeve and the cover sleeve, and the sleeve is installed at an installation destination via the second fastening clip. [14] Position detection device for a cable according to claim 4, further comprising: a first protective cover connected to the guide tube to protect the scanning module; and a second protective cover connected to the cover sleeve to protect a section of the wire. [15] Position detection device for a cable according to claim 14, further comprising: An anti-sag fastening element that connects the wire and the first protective cover to prevent the wire from interfering with the sleeve due to sagging. [16] Position detection device for a cable according to claim 3, wherein the wire is arranged such that it is movable without being partially restrained by the sleeve in order to accommodate a change in distance that occurs between the sleeve and the circuit board when the cable moves. [17] Position detection device for a cable according to any one of claims 1 to 16, wherein the sleeve has a stop groove formed on at least one side of an opening adjacent to the guide tube, the guide tube has a radially projecting stop projection, and the stop projection is positioned within the stop groove, and when an external force is applied, the stop projection is prevented by a groove wall of the stop groove from rotating at an angle greater than a predetermined range. [18] Electronic manual transmission, comprising: a gearshift housing with a gearshift lever; a cable, one end of which is connected to the gearshift lever and which is moved by the operation of the gearshift lever; and the position detection device which is installed in the shift lever housing and configured according to one of claims 1 to 16 to detect the movement of the cable. [19] Electronic transmission according to claim 18, wherein the position detection device comprises a line connecting a scanning module to a control unit and transmitting a detection signal from the scanning module to the control unit, and the wire is extended by at least one turn by winding around the sleeve of the position detection device.

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