CN115580284A - Knob switch with adjustable torsional resistance value - Google Patents
Knob switch with adjustable torsional resistance value Download PDFInfo
- Publication number
- CN115580284A CN115580284A CN202211175805.0A CN202211175805A CN115580284A CN 115580284 A CN115580284 A CN 115580284A CN 202211175805 A CN202211175805 A CN 202211175805A CN 115580284 A CN115580284 A CN 115580284A
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- Prior art keywords
- photoelectric sensor
- knob body
- magnetic ring
- light
- light area
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94057—Rotary switches
- H03K2217/94063—Rotary switches with optical detection
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94057—Rotary switches
- H03K2217/94068—Rotary switches with magnetic detection
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- Mechanical Control Devices (AREA)
Abstract
The invention relates to a knob switch with an adjustable torsional resistance value, which comprises a shell seat and a knob body, wherein the knob body is rotatably arranged on the shell seat, the knob body and the shell seat are matched to form an internal accommodating space, a PCB (printed circuit board) is fixedly arranged in the accommodating space, a grating frame is rotatably arranged, a photoelectric sensor is arranged on the PCB, a light blocking part is arranged on the grating frame, the light blocking part approaches to or leaves the photoelectric sensor when the knob body is rotated, an inductor is fixedly arranged in the accommodating space, and a magnetic ring is rotatably arranged; and the working current supplied to the induction coil is adjustable. The change of the rotation resistance causes the change of the rotation hand feeling.
Description
Technical Field
The invention relates to the technical field of switch operation, in particular to a knob switch with adjustable torsional resistance value.
Background
The knob is a manual element which is controlled to rotate by hands. The knob edge is inscribed with a common knob, disc or dial of one or a series of reference numbers that can be rotated or pushed in and out to activate and manipulate or control something.
CN110635796a discloses a knob, which includes a rotating member and a fixed member, wherein the rotating member is rotatably mounted on the fixed member, the fixed member is provided with a first photo sensor, a second photo sensor and a magnet, the rotating member is provided with a plurality of first light blocking portions distributed at equal intervals along the circumferential direction, the first light blocking portions successively approach one of the first photo sensor and the second photo sensor and the other of the first photo sensor and the second photo sensor when the rotating member is rotated, the first light blocking portions cut off a first optical signal of the first photo sensor when approaching the first photo sensor, the first light blocking portions switch on a first optical signal of the first photo sensor when leaving the first photo sensor, the first light blocking portions switch off a second optical signal of the second photo sensor when approaching the second photo sensor, the first light blocking portions switch on a second optical signal of the second photo sensor when leaving the second photo sensor, the edge portions switch off the second photo sensor and the magnet when the first light blocking portions approach the second photo sensor, the edge portions are further close to the magnet, so that a tooth-shaped magnet attracts a user to generate an interesting force, and the magnet is further close to the magnet to the edge portion to the magnet, the magnet to attract the magnet to generate an interesting tooth-shaped attraction force, the tooth-shaped magnet, the magnet, and the magnet to generate an interesting tooth-shaped attraction force when the magnet is generated by the magnet; when the user releases his hand, the rotor will rotate slightly, causing the cam with the toothed edge closest to the magnet to rotate to the side of the magnet. The above-mentioned knob has the following drawbacks: the rotation resistance generated by the attraction of the magnet in the rotation process is fixed and unadjustable, and the rotation resistance cannot be adjusted according to the requirement, so that the rotation hand feeling is changed.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides the knob switch with the adjustable torsional resistance value, and the change of the rotational resistance causes the change of the rotational hand feeling.
The technical scheme of the invention is as follows: a knob switch with adjustable torsional resistance value comprises a shell seat and a knob body, wherein the knob body is rotatably arranged on the shell seat and is matched with the shell seat to form an internal accommodating space,
a PCB board is fixedly arranged in the accommodating space, a grating frame is rotatably arranged on the PCB board, a photoelectric sensor is arranged on the grating frame, a light blocking part is arranged on the grating frame, the grating frame and the knob body rotate synchronously, the light blocking part approaches or leaves the photoelectric sensor when the knob body rotates, the light blocking part cuts off the optical signal of the photoelectric sensor when approaching the photoelectric sensor, and the light blocking part switches on the optical signal of the photoelectric sensor when leaving the photoelectric sensor,
an inductor and a magnetic ring are fixedly arranged in the accommodating space in a rotating way, wherein the inductor is provided with a metal bar and a coil wound on the metal bar, the coil is electrically connected with the PCB, the metal bar is transversely arranged at the inner side of the magnetic ring, the magnetic ring and the knob body rotate synchronously,
the knob body is provided with a capacitance touch structure, when the knob body receives a human body touch grabbing signal and the capacitance changes, the switch outputs corresponding current to the coil, and therefore the magnetic field force value of the magnetic ring is changed; and the working current supplied to the coil is adjustable in magnitude.
Preferably, the magnetic ring has a polygonal inner hole, the metal rod is arranged in the inner hole, and the end part of the metal rod is opposite to the polygonal hole wall of the inner hole.
Preferably, the metal rod passes through the center of the magnetic ring along the radial direction of the magnetic ring, and two ends of the metal rod respectively correspond to the inner ring of the magnetic ring.
Preferably, the photosensor is an optocoupler.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the magnetic attraction type magnetic ring, the magnetic ring is matched with the inductor in a magnetic attraction manner, when a knob is grabbed by a hand, the knob body is touched, the capacitance is changed, and at the moment, the switch outputs corresponding current to the induction coil, so that the magnetic field force value of the magnetic ring is changed, the rotation resistance generated by attraction of the magnetic ring is changed, and when the operation torsional force is larger than the magnetic attraction resistance, the knob is driven to rotate. Compared with the traditional mechanical spring type knob, the knob is controlled by the change of the magnetic field to control the motion hand feeling, so that no actual friction exists, and no friction noise exists.
2. The size of the working current supplied to the induction coil can be changed through adjustment, so that the rotation operation is realized, and the larger the current is, the stronger the generated magnetic force is. The knob is ingenious in structural design, the torque value is controlled through the current, the control method is simple and easy to implement, the rotary hand feeling is excellent, and the interactive experience is stronger.
3. The suction force at the plane of the inner hole wall is different from that at the angle of the inner groove, the plane of the inner hole wall is close to the end part of the metal rod relative to the angle of the inner groove, and the suction force is strong, so that a user rotates the knob body, the plane of the inner hole wall of the magnetic ring is about to leave the end part of the metal rod and is attracted by the inductor to generate rotary resistance, and the next plane of the inner hole wall of the magnetic ring is close to the end part of the metal rod and is attracted by the inductor to generate rotary assistance, so that a very interesting experience is generated, the rotary hand feeling is excellent, and the interactive experience is stronger; after the user loosens his hand, the knob body slightly rotates, so that the plane of the inner hole wall of the magnetic ring corresponds to the end of the metal rod.
4. The magnetic ring is annularly arranged, the metal rod is transversely arranged on the inner side of the magnetic ring and is arranged over the center, so that the magnetic attraction is uniform, and the operation is convenient.
5. After multi-functional integration, reduce design cost, promote vehicle space utilization and also promoted vehicle interior trim succinct nature.
The invention further provides that: the knob body can also perform pushing and pulling actions and drive the grating frame to synchronously slide, the lower side of the photoelectric sensor is provided with a first light area, and the upper side of the photoelectric sensor is provided with a second light area and a third light area which are parallel;
the light blocking part realizes up-and-down motion when the knob body is pushed and pulled out, when the knob body is pulled up, the light blocking part is upward corresponding to the photoelectric sensor, the optical signal of a first light area at the lower side of the photoelectric sensor is switched on, and the optical signals of a second light area and a third light area at the upper side of the photoelectric sensor are switched off, when the knob body is pressed down, the light blocking part is downward corresponding to the photoelectric sensor, and the optical signals of the first light area at the lower side of the photoelectric sensor, the second light area and the third light area at the upper side of the photoelectric sensor are switched off;
when the knob is in a pull-up position, the light blocking part approaches or leaves the photoelectric sensor when the knob body is rotated, the light blocking part cuts off the light signals of the second light area and the third light area when approaching the photoelectric sensor, and the light blocking part switches on the light signals of the second light area and the third light area when leaving the photoelectric sensor;
when the knob is in a pressing position, the light blocking part approaches or leaves the photoelectric sensor when the knob body is rotated, the light blocking part cuts off optical signals of the first light area, the second light area and the third light area when approaching the photoelectric sensor, and the light blocking part switches on the optical signals of the first light area, the second light area and the third light area when leaving the photoelectric sensor.
By adopting the above further arrangement, the invention realizes the signal output during pushing and pulling and the signal output during rotation through the matching of the light blocking part and the photoelectric sensor,
when the knob body is pulled upwards, the optical signal of the first light area at the lower side of the photoelectric sensor is switched on, the optical signals of the second light area and the third light area at the upper side of the photoelectric sensor are switched off to be 1-on and two-off, and when the knob body is pressed downwards, the optical signal of the first light area at the lower side of the photoelectric sensor and the optical signals of the second light area and the third light area at the upper side of the photoelectric sensor are switched off to be 3-off;
when the knob rotates at the pull-up position, the optical signals of the second light area and the third light area are cut off, or the optical signals of the second light area and the third light area are switched on, and the switching-on or the switching-off is 2;
when the knob is pressed down, the optical signals of the first light area, the second light area and the third light area are cut off, or the optical signals of the first light area, the second light area and the third light area are switched on, and then electrical signals are respectively generated through the change of the optical signals, and the switching on or the switching off is 3.
Judging whether the push-pull operation or the rotation operation is carried out according to the on-off number of the signals; and then the rotating direction of the knob body is judged according to the time sequence generated by the signals of the second light area and the third light area.
The invention further provides that: the track body is fixedly arranged in the accommodating space, an upper annular guide groove and a lower annular guide groove are formed in the circumferential direction of the track body, a plurality of guide pillars are arranged on the grating frame and are distributed at intervals in the circumferential direction, a groove is formed in the grating frame, a spring connected with the guide pillars is arranged in the groove, the guide pillars are abutted to the guide grooves under the action of the spring, and the knob body drives the grating frame to synchronously move up and down, so that the guide pillars are switched between the upper annular guide groove and the lower annular guide groove, and a gear is achieved.
By adopting the above further arrangement, when the knob body moves up and down, the magnetic ring is not moved, the guide pillar is switched between the upper annular guide groove and the lower annular guide groove, and the guide pillar is contacted with the groove wall, so that the hand feeling is realized.
The invention further provides that: the rotary knob body is connected with the grating frame in a buckling or screw mode, a rotary support is arranged on the inner side of the rotary knob body, the rotary support and the rotary knob body rotate circumferentially and synchronously, the rotary support is axially fixed, an inner shell is further arranged on the inner side of the rotary support, the inner shell is arranged on the track body, the track body is located on the inner side of the grating frame and is fixedly connected with the PCB, the magnetic ring is arranged on the rotary support and corresponds to the outer side of the inner shell, the inductor is located in the inner shell, and the end portion of the metal rod penetrates out of the inner shell and corresponds to the arrangement of the magnetic ring.
Preferably, the rotating support is axially fixed through the inner shell and the track body, the rotating support is limited downwards through the track body, the inner ring of the rotating support is provided with a bearing table for supporting the bottom surface of the magnetic ring, the magnetic ring is arranged on the bearing table and rotates synchronously with the rotating support, and the outer ring of the inner shell is provided with a boss which can be abutted against the upper surface of the magnetic ring to limit the rotating support upwards.
Preferably, the lower end of the inner shell is provided with a vertical limiting groove, the inner periphery of the upper end of the track body is provided with a convex column, the convex column is vertically clamped in the limiting groove to realize the positioning of the inner shell and the track body, the end part of the metal rod of the inductor is arranged in the limiting groove in a penetrating mode, and the magnetic ring corresponds to the limiting groove of the inner shell for the end part of the metal rod to penetrate through.
The installation structure of the knob switch is simple, synchronous rotation and up-and-down sliding are realized by buckling or screw connection of the knob body and the grating frame, the rotary support, the magnetic ring and the knob body rotate synchronously, the rotary handle is realized by matching the rotating magnetic ring and the inductor, and the end part of the metal rod penetrates out of the inner shell so as to correspond to the matching action of the magnetic ring and the inner shell; 2. the arrangement of the boss on the inner shell and the track body is convenient for limiting the rotating bracket in the axial direction; 3. the rotating bracket is convenient for installing the magnetic ring, the limiting groove is arranged, so that the inductor is convenient to install, and the limiting groove can be matched and positioned with the convex column on the track body.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is an internal block diagram of an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a block diagram of one side of a housing base in an embodiment of the invention;
FIG. 5 is a block diagram of a photosensor in an embodiment of the present invention;
FIG. 6 is a block diagram of a track body according to an embodiment of the present invention;
FIG. 7 is a block diagram of an inner shell in an embodiment of the present invention;
FIG. 8 is a view of the structure of one side of the knob body in accordance with the preferred embodiment of the present invention;
FIG. 9 is a block diagram of a rotating gantry in accordance with an embodiment of the present invention;
FIG. 10 is a diagram of the inductor and magnetic ring in accordance with an embodiment of the present invention.
In the figure: the light-shielding device comprises a shell base 1, a knob body 2, a PCB 3, a grating frame 4, a photoelectric sensor 5, a light blocking part 41, an inductor 6, a magnetic ring 7, a metal rod 61, a coil 62, an inner hole 71, a plane 711, an inner groove angle 712, a first light area 51, a second light area 52, a third light area 53, a track body 8, an upper annular guide groove 81, a lower annular guide groove 82, a guide pillar 9, a groove 42, a spring 10, a rotating support 11, an inner shell 12, a bearing platform 111, a boss 121, a limiting groove 122 and a convex pillar 83.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, the knob switch with adjustable torsional resistance of the present invention comprises a housing base 1 and a knob body 2, wherein the knob body 2 is rotatably mounted on the housing base 1, the knob body 2 cooperates with the housing base 1 to form an inner accommodating space,
a PCB (printed circuit board) 3 is fixedly arranged in the accommodating space, a grating frame 4 is rotationally arranged, a photoelectric sensor 5 is arranged on the PCB 3, a plurality of light blocking parts 41 which are distributed at equal intervals along the circumferential direction are arranged on the grating frame 4, the grating frame 4 and the knob body 2 rotate synchronously, the light blocking parts 41 approach or leave the photoelectric sensor 5 when the knob body 2 is rotated, the light blocking parts 41 cut off the optical signal of the photoelectric sensor 5 when approaching the photoelectric sensor 5, the light blocking parts 41 switch on the optical signal of the photoelectric sensor 5 when leaving the photoelectric sensor 5,
the photoelectric sensor 5 is an optical coupler;
an inductor 6 and a magnetic ring 7 are fixedly arranged in the accommodating space in a rotating way, wherein the inductor 6 is provided with a metal bar 61 and a coil 62 wound on the metal bar, the coil 62 is electrically connected with the PCB 3, the metal bar 61 is transversely arranged at the inner side of the magnetic ring 7, the magnetic ring 7 and the knob body 2 rotate synchronously,
the knob body 2 is provided with a capacitance touch structure, when the knob body 2 receives a human body touch grabbing signal and the capacitance changes, the switch outputs corresponding current to the induction coil 62, and therefore the magnetic field force value of the magnetic ring 7 is changed; and the magnitude of the operating current supplied to the induction coil 62 is adjustable; the metal rod 61 is arranged along the radial direction of the magnetic ring 7 and passes through the center of the magnetic ring 7, and two ends of the metal rod 61 respectively correspond to the inner ring of the magnetic ring 7;
the magnetic ring 7 is provided with a polygonal inner hole 71, the metal rod 7 is arranged in the inner hole 71, the end part of the metal rod is opposite to the polygonal hole wall of the inner hole 71, and the polygonal hole wall of the inner hole 71 is provided with a plurality of planes 711 and an inner groove angle 712 positioned between every two adjacent planes 711;
specifically, the knob body 2 can also perform pushing and pulling actions and drive the grating frame 4 to slide synchronously, the lower side of the photoelectric sensor 5 is provided with a first light area 51, and the upper side of the photoelectric sensor is provided with a second light area 52 and a third light area 53 which are parallel;
the light blocking portion 41 performs a vertical movement when the knob body 2 is pushed in and pulled out, when the knob body 2 is pulled up, the light blocking portion 41 faces upward corresponding to the photosensor 5, an optical signal of a first optical area 51 on the lower side of the photosensor 5 is turned on, and optical signals of a second optical area 52 and a third optical area 53 on the upper side are turned off, when the knob body 2 is pushed down, the light blocking portion 41 faces downward corresponding to the photosensor 5, and the first optical area 51 on the lower side of the photosensor 5 and optical signals of the second optical area 52 and the third optical area 53 on the upper side are turned off;
when the knob is in the pull-up position, the light blocking portion 41 approaches or leaves the photosensor 5 when the knob body 2 is rotated, the light blocking portion 41 cuts off the light signals of the second and third light regions 52 and 53 when approaching the photosensor 5, and the light blocking portion 41 turns on the light signals of the second and third light regions 52 and 53 when leaving the photosensor 5;
when the knob is in the pressing position, the light blocking portion 41 approaches or leaves the photosensor 5 when the knob body 2 is rotated, the light blocking portion 41 cuts off the optical signals of the first light region 51, the second light region 52 and the third light region 53 when approaching the photosensor 5, and the light blocking portion 41 turns on the optical signals of the first light region 51, the second light region 52 and the third light region 53 when leaving the photosensor 5;
a track body 8 is fixedly arranged in the accommodating space, an upper annular guide groove 81 and a lower annular guide groove 82 are formed in the circumferential direction of the track body 8, a plurality of guide posts 9 or steel balls which are distributed at intervals in the circumferential direction are arranged on the grating frame 4, a groove 42 is formed in the grating frame 4, a spring 10 for connecting the guide posts or the steel balls is arranged in the groove 42, the guide posts 9 are abutted to the guide grooves under the action of the spring 10, and the knob body 2 drives the grating frame 4 to synchronously move up and down so that the guide posts 9 are switched between the upper annular guide groove 81 and the lower annular guide groove 82 to realize gear shifting;
the knob body 2 is connected with the grating frame 4 in a buckling or screw mode, a rotating support 11 is arranged on the inner side of the knob body 2, the rotating support 11 and the knob body 2 rotate synchronously in the circumferential direction, the rotating support 11 is fixed in the axial direction, an inner shell 12 is further arranged on the inner side of the rotating support 11, the inner shell 12 is arranged on a track body 8, the track body 8 is located on the inner side of the grating frame 4 and is fixedly connected with the PCB 3, the magnetic ring 7 is arranged on the rotating support 11 and corresponds to the outer side of the inner shell 12, the inductor 6 is located in the inner shell 12, and the end portion of the metal rod 61 penetrates through the inner shell 12 and is arranged corresponding to the magnetic ring 7;
preferably, the rotating bracket 11 is axially fixed through the inner shell 12 and the track body 8, the rotating bracket 11 is limited downward through the track body 8, the inner ring of the rotating bracket 11 is provided with a bearing platform 111 for supporting the bottom surface of the magnetic ring 7, the magnetic ring 7 is arranged on the bearing platform 111 and rotates synchronously with the rotating bracket 11, and the outer ring of the inner shell 12 is provided with a boss 121 which can be abutted against the upper surface of the magnetic ring 7 to limit the rotating bracket 11 upward;
preferably, the lower end of the inner casing 12 is provided with a vertical limiting groove 122, the inner circumference of the upper end of the rail body 8 is provided with a convex column 83, the convex column 83 is vertically clamped in the limiting groove 122 to realize the positioning of the inner casing 12 and the rail body 8, the end of the metal rod 61 of the inductor 6 is inserted into the limiting groove 122, and the magnetic ring 7 corresponds to the limiting groove 122 of the inner casing 12 through which the end of the metal rod 61 passes.
Specifically, the knob switch is also provided with a touch screen, and the touch screen is provided with a sensitive element. Touch operation controls are also possible.
The knob switch is simple in installation structure, synchronous rotation and up-and-down sliding are achieved through buckling or screw connection of the knob body 2 and the grating frame 4, the rotary support 11, the magnetic ring 7 and the knob body 2 rotate synchronously, rotating hand feeling is achieved through matching of the rotating magnetic ring 7 and the inductor 6, and the end portion of the metal rod 61 penetrates through the inner shell 12 so as to correspond to the matching effect of the magnetic ring 7 and the inner shell; the arrangement of the boss 121 on the inner shell 12 and the track body 8 is convenient for limiting the rotating bracket 11 in the axial direction; the rotating bracket 11 is convenient for installing the magnetic ring 7, the limiting groove 111 is arranged, so that the inductor 6 is convenient to install, and the limiting groove 111 can be matched and positioned with the convex column 82 on the track body 8.
The hand feeling principle of knob rotation:
when a user manually rotates the knob body 2, the user touches the knob body 2, the capacitance changes, and the switch outputs corresponding current to the induction coil 62, so that the magnetic field force value of the magnetic ring 7 is changed, the rotation resistance generated by attraction of the magnetic ring 7 is changed, and when the operation torsion force is larger than the magnetic attraction resistance, the knob body 2 is driven to rotate; the working current supplied to the induction coil 62 can be changed through adjustment, and the larger the current is, the stronger the generated magnetic force is, so that adjustment of different torsional resistance during rotation operation is realized;
in the rotating process, due to the fact that the plane 711 of the inner hole wall of the polygonal inner hole 71 of the magnetic ring 7 is different from the suction force at the inner groove corner 712, the plane 711 of the inner hole wall is close to the end of the metal rod 61 relative to the inner groove corner 712, the suction force is strong, a user can rotate the knob body 2, the plane 711 of the inner hole wall of the magnetic ring 7 is about to leave the end of the metal rod 61 and is attracted by the inductor 6 to generate rotation resistance, the next plane 711 of the inner hole wall of the magnetic ring 7 is close to the end of the metal rod 6 and is attracted by the inductor 6 to generate rotation assistance, a very interesting experience is generated, the rotation hand feeling is excellent, and the interaction experience is strong; when the user releases his hand, the knob body 2 is slightly rotated so that the flat 711 of the inner hole wall of the magnetic ring 7 corresponds to the end of the metal rod 61.
Handle principle of knob propulsion and pulling out:
the knob body 2 drives the grating frame 4 to synchronously move up and down, so that the guide pillar 9 is switched between the upper annular guide groove 81 and the lower annular guide groove 82 to realize the gear shifting.
The working principle of the on-off of the knob is as follows:
when the knob body 2 is pulled up, the optical signal of the first light area 51 at the lower side 5 of the photoelectric sensor is switched on, the optical signal of the second light area 52 and the third light area 53 at the upper side is switched off, and the optical signal is switched on and switched off in a 1-way or two-way mode, and when the knob body 2 is pressed down, the optical signal of the first light area 51 at the lower side of the photoelectric sensor 5 and the optical signal of the second light area 52 and the third light area 53 at the upper side are switched off and switched off in a 3-way mode;
when the knob rotates at the pull-up position, the optical signals of the second light area 52 and the third light area 53 are cut off, or the optical signals of the second light area 52 and the third light area 53 are switched on, and the optical signals are switched on or off by 2;
when the knob is pressed down, the optical signals of the first light area 51, the second light area 52 and the third light area 53 are cut off, or the optical signals of the first light area 51, the second light area 52 and the third light area 53 are switched on, and then electrical signals are respectively generated through the change of the optical signals, and the power is 3-on or 3-off.
Judging whether the push-pull operation or the rotation operation is carried out according to the on-off number of the signals; and then the rotation direction of the knob body 2 is judged according to the time sequence generated by the signals of the second light area 52 and the third light area 53.
It should be noted that all the directional indicators (such as upper, lower, front and rear … …) in the description of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Claims (8)
1. A knob switch with adjustable torsion resistance value comprises a shell seat and a knob body, wherein the knob body is rotatably arranged on the shell seat, the knob body is matched with the shell seat to form an internal accommodating space,
the light-blocking type LED lamp is characterized in that a PCB is fixedly arranged in the accommodating space, a grating frame is arranged in the accommodating space in a rotating mode, a photoelectric sensor is arranged on the PCB, a light blocking portion is arranged on the grating frame, the grating frame and a knob body rotate synchronously, the light blocking portion is close to or away from the photoelectric sensor when the knob body rotates, the light blocking portion cuts off an optical signal of the photoelectric sensor when the light blocking portion is close to the photoelectric sensor, and the light blocking portion is connected with the optical signal of the photoelectric sensor when the light blocking portion is away from the photoelectric sensor, and the LED lamp is characterized in that:
an inductor and a magnetic ring are fixedly arranged in the accommodating space in a rotating way, wherein the inductor is provided with a metal bar and a coil wound on the metal bar, the coil is electrically connected with the PCB, the metal bar is transversely arranged at the inner side of the magnetic ring, the magnetic ring and the knob body rotate synchronously,
the knob body is provided with a capacitance touch structure, when the knob body receives a human body touch grabbing signal and the capacitance changes, the switch outputs corresponding current to the coil, and therefore the magnetic field force value of the magnetic ring is changed; and the working current supplied to the coil is adjustable in magnitude.
2. A rotary switch with adjustable torsional resistance according to claim 1, wherein: the magnetic ring is provided with a polygonal inner hole, the metal rod is arranged in the inner hole, and the end part of the metal rod is opposite to the polygonal hole wall of the inner hole.
3. A rotary switch according to claim 1 or 2, wherein the torsional resistance value is adjustable by: the metal rod passes through the center of the magnetic ring along the radial direction of the magnetic ring, and two ends of the metal rod respectively correspond to the inner ring of the magnetic ring.
4. A rotary switch according to claim 1 or 2, wherein the torsional resistance value is adjustable by: the knob body can also perform pushing and pulling actions and drive the grating frame to synchronously slide, the lower side of the photoelectric sensor is provided with a first light area, and the upper side of the photoelectric sensor is provided with a second light area and a third light area which are parallel;
the light blocking part realizes up-and-down motion when the knob body is pushed and pulled out, when the knob body is pulled up, the light blocking part is upward corresponding to the photoelectric sensor, the optical signal of a first light area at the lower side of the photoelectric sensor is switched on, and the optical signals of a second light area and a third light area at the upper side of the photoelectric sensor are switched off, when the knob body is pressed down, the light blocking part is downward corresponding to the photoelectric sensor, and the optical signals of the first light area at the lower side of the photoelectric sensor, the second light area and the third light area at the upper side of the photoelectric sensor are switched off;
when the knob is in a pull-up position, the light blocking part approaches or leaves the photoelectric sensor when the knob body is rotated, the light blocking part cuts off the light signals of the second light area and the third light area when approaching the photoelectric sensor, and the light blocking part switches on the light signals of the second light area and the third light area when leaving the photoelectric sensor;
when the knob is in a pressing position, the light blocking part approaches or leaves the photoelectric sensor when the knob body is rotated, the light blocking part cuts off optical signals of the first light area, the second light area and the third light area when approaching the photoelectric sensor, and the light blocking part switches on the optical signals of the first light area, the second light area and the third light area when leaving the photoelectric sensor.
5. A rotary switch with adjustable torsional resistance according to claim 4, wherein: the track body is fixedly arranged in the accommodating space, an upper annular guide groove and a lower annular guide groove are formed in the circumferential direction of the track body, a guide pillar is arranged on the grating frame, a groove is formed in the grating frame, a spring connected with the guide pillar is arranged in the groove, the guide pillar is supported in the guide groove under the action of the spring, and the knob body drives the grating frame to synchronously move up and down, so that the guide pillar is switched between the upper annular guide groove and the lower annular guide groove, and a gear is realized.
6. A rotary switch with adjustable torsional resistance according to claim 5, wherein: the rotary knob body is connected with the grating frame in a buckling or screw mode, a rotary support is arranged on the inner side of the rotary knob body, the rotary support and the rotary knob body rotate circumferentially and synchronously, the rotary support is axially fixed, an inner shell is further arranged on the inner side of the rotary support, the inner shell is arranged on the track body, the track body is located on the inner side of the grating frame and is fixedly connected with the PCB, the magnetic ring is arranged on the rotary support and corresponds to the outer side of the inner shell, the inductor is located in the inner shell, and the end portion of the metal rod penetrates out of the inner shell and corresponds to the arrangement of the magnetic ring.
7. A rotary switch according to claim 6, wherein the rotary switch is characterized in that: the rotary support is axially fixed through the matching of the inner shell and the track body, the rotary support is limited downwards through the track body, the inner ring of the rotary support is provided with a bearing table for supporting the bottom surface of the magnetic ring, the magnetic ring is arranged on the bearing table and rotates synchronously with the rotary support, and the outer ring of the inner shell is provided with a boss which can be abutted against the upper surface of the magnetic ring to limit the rotary support upwards.
8. A rotary switch according to claim 6, wherein the rotary switch is characterized in that: the lower end of the inner shell is provided with a vertical limiting groove, the inner periphery of the upper end of the track body is provided with a convex column, the convex column is vertically clamped in the limiting groove to realize the positioning of the inner shell and the track body, the end part of a metal rod of the inductor is arranged in the limiting groove in a penetrating mode, and the magnetic ring corresponds to the limiting groove of the inner shell for the end part of the metal rod to penetrate through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175805.0A CN115580284A (en) | 2022-09-26 | 2022-09-26 | Knob switch with adjustable torsional resistance value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175805.0A CN115580284A (en) | 2022-09-26 | 2022-09-26 | Knob switch with adjustable torsional resistance value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115580284A true CN115580284A (en) | 2023-01-06 |
Family
ID=84583545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211175805.0A Pending CN115580284A (en) | 2022-09-26 | 2022-09-26 | Knob switch with adjustable torsional resistance value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115580284A (en) |
-
2022
- 2022-09-26 CN CN202211175805.0A patent/CN115580284A/en active Pending
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Address after: No. 289, 291, Binhai Second Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province, 325024 Applicant after: Zhejiang Changjiang Automobile Electronics Co.,Ltd. Address before: No. 289 and 291, Binhai Second Road, Wenzhou Economic and Technological Development Zone, Wenzhou, Zhejiang 325000 Applicant before: WENZHOU CHANGJIANG AUTOMOBILE ELECTRONIC SYSTEM Co.,Ltd. |