CN114220620A - Magnetic holding potentiometer and application thereof - Google Patents
Magnetic holding potentiometer and application thereof Download PDFInfo
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- CN114220620A CN114220620A CN202111469630.XA CN202111469630A CN114220620A CN 114220620 A CN114220620 A CN 114220620A CN 202111469630 A CN202111469630 A CN 202111469630A CN 114220620 A CN114220620 A CN 114220620A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000006073 displacement reaction Methods 0.000 claims abstract description 37
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- 230000001960 triggered effect Effects 0.000 claims description 8
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- 238000003825 pressing Methods 0.000 description 12
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- 239000011810 insulating material Substances 0.000 description 4
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
- H01C10/34—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
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Abstract
The invention provides a magnetic-holding potentiometer and application thereof, wherein the magnetic-holding potentiometer comprises an annular upper cover, a conducting ring, a positioning ring and a magnetic resistance ring which are concentrically arranged in sequence, a hollow structure is formed in the center of the magnetic-holding potentiometer, and the positioning ring is arranged in a sliding manner in the radial direction of the positioning ring; the inner annular wall of the conducting ring is provided with a first extending part towards the center direction; the positioning ring comprises an annular displacement cover, a positioning iron ring and a conductive contact arm ring; the magnetic resistance ring comprises a magnetic resistance ring body, an annular magnetic part and an annular resistor; the first extension part is in contact with the surface of the annular displacement cover facing the annular upper cover, the surface of the annular displacement cover facing the magnetic resistance ring is in contact with the annular magnetic part, and the conductive contact arm ring and the annular resistor are in a concentric separation state in an initial state; under the external force touch state of the positioning ring, the conductive contact arm ring is in contact with the annular resistor and keeps in a contact state under the action of the positioning iron ring and the annular magnetic part; the invention can keep the constant output of the resistance value of the last positioning without rotating the main shaft.
Description
Technical Field
The invention relates to the technical field of potentiometers, in particular to a magnetic latching potentiometer and application thereof.
Background
The traditional potentiometer generally changes the output resistance value of the potentiometer by driving a resistance brush to do circular motion or linear motion through a central shaft structure so as to feed back the motion track change of a measuring body, but for the multi-directional motion on the same plane to be measured, a plurality of traditional potentiometers are usually needed to participate, and the measurement can be completed only by matching the traditional potentiometers; in addition, in order to achieve a predetermined resistance value, the conventional potentiometer usually needs to rotate the central shaft, and cannot maintain the predetermined resistance value, and the operation still needs to be repeated when the potentiometer is used next time.
Therefore, a new type of magnetic holding potentiometer is needed, which can keep the resistance value of the last positioning constant output and is simple to operate.
Disclosure of Invention
In order to solve the above problems, the present invention provides a magnetic latching potentiometer and its application, which can keep the resistance value of the last positioning constant output and is simple in operation.
In order to achieve the aim, the invention provides a magnetic holding potentiometer, which comprises an annular upper cover, a conducting ring, a positioning ring and a magnetic resistance ring which are concentrically arranged in sequence, wherein a hollow structure is formed in the center of the positioning ring, and the positioning ring can be arranged in a sliding manner in the radial direction of the positioning ring;
the inner ring wall of the conducting ring is provided with a first extending part towards the center direction;
the positioning ring comprises an annular displacement cover, a positioning iron ring arranged on an inner ring of the annular displacement cover and extending towards the direction of the magnetic resistance ring, and a conductive contact arm ring arranged on an outer ring of the annular displacement cover and protruding towards the direction of the magnetic resistance ring;
the magnetic resistance ring comprises a magnetic resistance ring body, an annular magnetic part and an annular resistor, wherein the annular magnetic part is arranged on the inner ring of the magnetic resistance ring body and extends and protrudes towards the positioning ring direction;
the first extension part is in contact with the surface, facing the annular upper cover, of the annular displacement cover, the surface, facing the magnetic resistance ring, of the annular displacement cover is in contact with the annular magnetic part, and in an initial state, the conductive contact arm ring and the annular resistor are in a concentric separation state; when the positioning ring is triggered by external force, the conductive contact arm ring is in contact with the annular resistor and keeps in contact with the annular magnetic part under the action of the positioning iron ring.
As a further improvement of the above scheme, the magnetoresistive ring further includes a limit ring, the limit ring is disposed on an outer ring of the magnetoresistive ring body and extends and protrudes toward the annular upper cover, and the limit ring is configured to engage with the annular upper cover and limit a maximum displacement position of the conductive contact arm ring.
As a further improvement of the above scheme, the annular resistor is disposed on the magnetoresistive ring body, is located between the annular magnetic member and the limit ring, and protrudes out of the magnetoresistive ring body toward the positioning ring.
As a further improvement of the above scheme, a surface of the annular magnetic member, which is in contact with the annular displacement cover, is an arc-shaped surface.
As a further improvement of the above solution, a contact stator is disposed on the first extension portion toward the positioning ring, a first terminal is disposed on an outer ring of the conductive ring toward the outside, and a conductive wire is disposed between the contact stator and the first terminal; correspondingly, a second terminal is arranged on the magnetic resistance ring body of the magnetic resistance ring, and the second terminal is electrically connected with the annular resistor.
As a further improvement of the above scheme, a second extension portion is further disposed on the inner annular wall of the conductive ring in the center direction, and a support protrusion is disposed on the second extension portion, and is used for supporting and limiting the positioning ring to be stably located between the conductive ring and the magnetoresistive ring; and the material of the second extension part is an insulating material.
As a further improvement of the above solution, the contact stator is cylindrical or conical.
As a further improvement of the scheme, the annular upper cover is made of an insulating material.
As a further improvement of the above scheme, the inner diameter of the positioning iron ring is smaller than that of the annular displacement cover and is fixedly connected with the annular displacement cover; and the outer diameter of the positioning iron ring is smaller than the inner diameter of the annular magnetic part.
As a further improvement of the above solution, the outer diameter of the positioning ring is smaller than the inner diameter of the conductive ring.
As a further improvement of the above scheme, the annular resistor is annular, and the resistance value of the annular resistor linearly changes with the rotation angle of the annular resistor.
The invention also provides a direction positioning rocker, which comprises the magnetic latching potentiometer and a rocker, wherein the rocker is sleeved in the hollow structure of the magnetic latching potentiometer, and the rocker acts to trigger the positioning ring of the magnetic latching potentiometer to move radially until the conductive contact arm ring is in contact with the annular resistor, so that the magnetic latching potentiometer is in a conducting state, and the positioning iron ring is kept in a contact state under the action of the annular magnetic part.
The invention also provides a dimmer switch, which comprises a dimmer switch body, a top cover arranged at the top of the dimmer switch body and an operation panel arranged above the top cover, wherein a control circuit board and an action rod are arranged in the dimmer switch body, the control circuit board is provided with the magnetic latching potentiometer, the first end of the action rod is arranged in a hollow structure of the magnetic latching potentiometer, the second end of the action rod is in contact with the operation panel, and when the action rod is triggered by the operation panel, the action rod triggers the positioning ring of the magnetic latching potentiometer to move radially until the conductive contact arm ring is in contact with the annular resistor, so that the magnetic latching potentiometer is in a conducting state, and the positioning iron ring is kept in a contact state under the action of the annular magnetic piece.
As a further improvement of the scheme, the second end of the action rod is connected with the top cover through a spherical structure.
As a further improvement of the above scheme, the operation panel is provided with a central shaft, a reset member is sleeved on the central shaft, and the central shaft is in contact with the second end of the action rod.
As a further improvement of the above solution, the reset member includes, but is not limited to, a spring.
As a further improvement of the above scheme, the operating panel is further provided with a pressing block, the upper cover is correspondingly provided with a slot hole for the pressing block to pass through, the pressing block is used for being operationally triggered by a self-locking touch switch arranged in the dimming switch body, one end of the self-locking touch switch is connected with a live wire, and the other end of the self-locking touch switch is connected with the control circuit board.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention provides a magnetic holding potentiometer, which comprises an annular upper cover, a conducting ring, a positioning ring and a magnetic resistance ring which are concentrically arranged in sequence, wherein a hollow structure is formed in the center of the positioning ring, and the positioning ring can be arranged in a sliding manner in the radial direction of the positioning ring; a first extension part is arranged on the inner annular wall of the conducting ring towards the center direction; the positioning ring comprises an annular displacement cover, a positioning iron ring arranged on an inner ring of the annular displacement cover and extending towards the direction of the magnetic resistance ring, and a conductive contact arm ring arranged on an outer ring of the annular displacement cover and extending and protruding towards the direction of the magnetic resistance ring; the magnetic resistance ring comprises a magnetic resistance ring body, an annular magnetic part and an annular resistor, wherein the annular magnetic part is arranged on an inner ring of the magnetic resistance ring body and extends and protrudes towards the positioning ring direction; the first extension part is in contact with the surface, facing the annular upper cover, of the annular displacement cover, the surface, facing the magnetic resistance ring, of the annular displacement cover is in contact with the annular magnetic part, and in an initial state, the conductive contact arm ring and the annular resistor are in a concentric separation state; when the positioning ring is triggered by external force, the conductive contact arm ring is in contact with the annular resistor and keeps in contact with the annular magnetic part under the action of the positioning iron ring and the annular magnetic part; according to the arrangement, only the positioning iron ring needs to be touched, the positioning iron ring slides along the radial direction of the positioning iron ring under the action of external force until the conductive contact arm ring contacts the annular resistor to connect the conductive magnetic latching potentiometer, and meanwhile, in the sliding process of the positioning iron ring, the annular magnetic part arranged on the counting magnetic resistor ring attracts the positioning iron ring to enable the positioning iron ring to keep the current conducting position, so that the situation that the traditional potentiometer needs to rotate a main shaft until a target resistor position is found is avoided, and the positioning ring can quickly move to the corresponding target resistor position in the target annular resistor when the magnetic latching potentiometer is adopted and stirred by the external force; meanwhile, due to the arrangement of the positioning iron ring and the annular magnetic piece, the position of the target resistor can be kept, the traditional potentiometer repeated rotation is omitted for searching the position of the target resistor, and the method is quicker.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic perspective view of a magnetic latching potentiometer disclosed in the present invention;
FIG. 2 is an exploded view of a magnetic holding potentiometer according to the present invention
FIG. 3 is a schematic perspective view of a conductive ring according to the present disclosure;
FIG. 4 is a perspective view of the disclosed retaining ring;
FIG. 5 is a schematic perspective view of a magnetoresistive ring according to the present disclosure;
FIG. 6 is a schematic plan cross-sectional view of a magnetic holding potentiometer according to the present disclosure;
FIG. 7 is a schematic cross-sectional perspective view of a magnetically held potentiometer according to the present disclosure;
FIG. 8 is a schematic perspective view of a magnetic latching potentiometer according to the present invention applied to a direction positioning rocker;
FIG. 9 is a cross-sectional plan view of the magnetic latching potentiometer of the present disclosure in use with a dimmer switch;
fig. 10 is a perspective view of a part of the dimmer switch disclosed in the present invention;
FIG. 11 is a schematic perspective view of a disclosed header;
FIG. 12 is a three-dimensional internal structure diagram of a dimmer switch using a magnetic latching potentiometer according to the present disclosure
Reference numerals:
0. a magnetic holding potentiometer; 1. an annular upper cover; 2. conducting rings; 21. a first extension portion; 22. contacting the stator; 23. a conductive wire; 24. a first terminal; 25. a second extension portion; 3. a positioning ring; 31. an annular displacement cover; 32. positioning an iron ring; 33. a conductive contact arm ring; 4. a magnetoresistive ring; 41. a magnetoresistive ring body; 42. an annular magnetic member; 43. a ring resistor; 44. a limiting ring; 45. a second terminal;
5. a rocker; 6. a dimmer switch body; 61. a top cover; 611. a slot; 62. an operation panel; 621. a central shaft; 622. a reset member; 623. a pressing block; 63. a control circuit board; 624. an annular column; 64. an action lever; 65. a spherical structure; 651. rotating the sphere; 66. self-locking tact switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that all the directional indicators such as the first, second, upper, lower, left, right, front and rear … … in the embodiment 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 drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention will be further described with reference to the following figures:
example 1:
referring to fig. 1-7, the present invention provides a magnetic latching potentiometer, which comprises an annular upper cover 1, a conductive ring 2, a positioning ring 3 and a magnetic resistance ring 4, which are concentrically arranged in sequence, and a hollow cavity which is through up and down is formed in the center of the annular upper cover, the hollow cavity is used for an external power member to mount and touch, and under the action of the external power member, the positioning ring 3 can slide along the radial direction;
the inner wall of the conductive ring 2 is provided with a first extending part 21 towards the center direction;
the positioning ring 3 comprises an annular displacement cover 31, a positioning iron ring 32 arranged on the inner ring of the annular displacement cover 31 and extending towards the magnetic resistance ring 4, and a conductive contact arm ring 33 arranged on the outer ring of the annular displacement cover 31 and extending and protruding towards the magnetic resistance ring 4;
the magnetic resistance ring 4 comprises a magnetic resistance ring body 41, an annular magnetic part 42 which is arranged on the inner ring of the magnetic resistance ring body 41 and extends and protrudes towards the direction of the positioning ring 3, and an annular resistor 43 which is arranged on the magnetic resistance ring body 41;
the first extension part 21 contacts with the surface of the annular displacement cover 31 facing the annular upper cover 1, the surface of the annular displacement cover 31 facing the magnetic resistance ring 4 contacts with the annular magnetic part 42, and in an initial state, the conductive contact arm ring 33 and the annular resistor 43 are in a concentric separation state; when the positioning ring 3 is under the touch state of an external force, the conductive contact arm ring 33 is in contact with the annular resistor 43, and the contact state is maintained under the action of the positioning iron ring 32 and the annular magnetic member 42;
according to the arrangement, only the positioning iron ring 32 needs to be touched, the positioning iron ring 32 slides along the radial direction under the action of external force until the conductive contact arm ring 33 is in contact with the annular resistor 43 to conduct the magnetic latching potentiometer 0, meanwhile, in the sliding process of the positioning iron ring 32, the annular magnetic part 42 arranged on the magnetic resistance ring 4 attracts the positioning iron ring 32 to enable the positioning iron ring to keep the current conducting position, the situation that a main shaft of a traditional potentiometer needs to be rotated until a target resistor position is found is avoided, and when the magnetic latching potentiometer 0 is adopted, the positioning ring 3 can rapidly move to the corresponding target resistor position in the target annular resistor 43 under the stirring of the external force; meanwhile, due to the arrangement of the positioning iron ring 32 and the annular magnetic part 42, the target resistance position can be maintained, the traditional repeated rotation of the potentiometer for searching the target resistance position is omitted, and the method is quicker.
As a preferred embodiment, the magnetic resistance ring 4 further includes a limiting ring 44, the limiting ring 44 is disposed on the outer ring of the magnetic resistance ring body 41 and extends and protrudes toward the annular upper cover 1, the limiting ring 44 is configured to be fastened with the annular upper cover 1 and limit the maximum displacement position of the conductive contact arm ring 22, specifically, in this embodiment, the annular upper cover 1 includes an annular upper cover 1 body and an outer protruding ring disposed on the outer ring of the annular upper cover 1 body, the conductive ring 2 and the limiting ring 44 are stacked and sleeved in the outer protruding ring, so that the annular upper cover 1 and the magnetic resistance ring body 41 form a casing of the magnetic holding potentiometer 0, the conductive ring 2 and the positioning ring are disposed in the casing, and the annular upper cover 1 is made of an insulating material.
In a preferred embodiment, the annular resistor 43 is disposed on the magnetoresistive ring body 41, and is located between the annular magnetic member 42 and the position-limiting ring 44, and protrudes the magnetoresistive ring body 41 toward the position-limiting ring 3, and correspondingly, a groove is formed between the annular resistor 43 and the annular magnetic member 42, in an initial state, the position-limiting ring 3 is disposed concentrically with the conductive ring 2, and the conductive contact arm ring 33 is located in the groove and is not in contact with the annular resistor 43, and at this time, the magnetic holding potentiometer 0 is in an off state;
when the positioning ring 3 moves from the groove to the annular resistor 43 area along the radial direction under the action of external power, the positioning ring contacts with the conductive contact arm ring 33 to conduct the magnetic holding potentiometer 0; in this embodiment, the annular resistor 43 is sequentially provided with resistance wires with different resistance values along its circumferential plane, so that the resistance value of the annular resistor 43 changes regularly along its radial direction, and when the conductive contact arm ring 33 slides to a target position under external power, there is a corresponding resistance value.
As a preferred embodiment, the surface of the annular magnetic member 42 contacting the annular displacement cover 31 is an arc surface, and the arc surface is arranged to make the positioning ring 3 linearly contact the annular magnetic member 42, so as to reduce the friction force of the positioning ring 3 when moving along the radial direction thereof, and enable the positioning ring to rapidly move to the target resistance, thereby improving the sensitivity of the potentiometer.
In a preferred embodiment, the first extension 21 is provided with a contact stator 22 towards the positioning ring 3, the outer ring of the conductive ring 2 is provided with a first terminal 24 towards the outside, and a conductive wire 23 is arranged between the contact stator 22 and the first terminal 24; correspondingly, the second terminal 45 is disposed on the magnetoresistive ring body 41 of the magnetoresistive ring 4, and the second terminal 45 is electrically connected to the annular resistor 43, so that the first terminal 24, the wire, the contact stator 22, the positioning ring 3, the conductive contact arm ring 33, the annular resistor 43, and the second resistor sequentially contact and form a conduction channel of the magnetic latching potentiometer 0.
In a preferred embodiment, the contact stator 22 is cylindrical or conical, and in this embodiment, the contact stator 22 is cylindrical, which is convenient for manufacturing.
In a preferred embodiment, the inner annular wall of the conductive ring 2 is further provided with a second extension portion 25 facing the center direction, the second extension portion 25 is provided with a supporting protrusion for supporting and limiting the positioning ring 3 to be stably located between the conductive ring and the reluctance ring 4, and the material of the second extension portion 25 is an insulating material; in this embodiment, the conductive ring 2 is provided with two second extending portions, and the two second extending portions 25 and the first extending portion 21 are disposed on the inner annular wall of the conductive ring 2 in an evenly distributed state, so that in the initial state, under the support of the first extending portion 21 and the second extending portion 25, they are stably disposed concentrically; when the positioning ring 3 moves along the radial direction under the action of external power, the first extension part 21 is always in contact with the positioning ring 3, and at least one second extension part 25 is in contact with the positioning ring 3 (at the initial stage of movement, both the two second extension parts 25 are in contact with the positioning ring), so that the positioning ring 3 can be stably supported and limited in the moving process, and the contact with the conductive ring cannot be influenced by tilting in a certain state;
in some embodiments, the number of the second extension portions 25 is greater than two, and also the second extension portions 25 and the first extension portions 21 are both disposed on the inner annular wall of the conductive ring 2; or more than two of said second extensions are arranged on the inner annular wall of said conductive ring 2 in a suitable manner according to the actual need, also to support and define said positioning ring 3 smoothly between the conductive ring and the reluctance ring 4.
As a preferred embodiment, the inner diameter of the positioning iron ring 32 is smaller than the inner diameter of the annular displacement cover 31, and is fixedly connected to the annular displacement cover 31, so that when external power touches the positioning ring 3, the positioning iron ring 32 is touched first, and the positioning iron ring 32 is fixedly connected to the annular displacement cover 31, which will drive the real positioning ring 3 to move along the radial direction thereof, and during the movement, the positioning iron ring 32 gradually approaches the annular magnetic member 42 until the conductive contact arm ring 33 touches the target annular resistor 43; the outer diameter of the positioning iron ring 32 is smaller than the inner diameter of the annular magnetic member 42, and the distance from the outer side wall of the positioning iron ring 32 to the inner wall of the annular magnetic member 42 is equal to the distance from the conductive contact arm ring 33 to the annular resistor 43.
In a preferred embodiment, the outer diameter of the positioning ring 3 is smaller than the inner diameter of the conductive ring 2, and has a certain clearance to provide enough space for the positioning ring 3 to move in its radial direction.
In a preferred embodiment, the annular resistor has a ring shape, and the resistance value of the annular resistor linearly changes with the rotation angle of the annular resistor
Example 2:
referring to fig. 8, the present invention further provides a direction positioning rocker 5, including the above-mentioned magnetic latching potentiometer 0 and the rocker 5, the rocker 5 is sleeved in the hollow structure of the magnetic latching potentiometer 0, and the action of the rocker 5 triggers the positioning ring 3 of the magnetic latching potentiometer 0 to move radially until the conductive contact arm ring 33 contacts with the annular resistor 43, so that the magnetic latching potentiometer 0 is in a conducting state, and the contact state is maintained under the action of the positioning iron ring 32 and the annular magnetic member 42.
When the magnetic holding potentiometer 0 is in the initial state, the positioning ring 3, the conductive ring 2 and the magnetic resistance ring 4 are in a concentric state, at this time, the positioning iron ring 32 is not in contact with the annular magnetic member 42, the conductive contact arm ring 33 is not in contact with the annular resistance 43, and the external output state of the magnetic holding potentiometer 0 is an open circuit;
when the rocker 5 applies an external force to the positioning iron ring 32 of the positioning ring 3, the positioning ring 3 is caused to deflect along the radial direction thereof, the conductive contact arm ring 33 is in contact with the annular resistor 43, meanwhile, the positioning iron ring 32 is attracted with the annular magnetic part 42, and the magnetic holding potentiometer 0 outputs a certain resistance value to the outside;
after the external force of the rocker 5 is removed, the positioning iron ring 32 is attracted to the annular magnetic member 42 at present, so that the contact state of the conductive contact arm ring 33 and the annular resistor 43 is maintained, and the potentiometer outputs a stable resistance value to the outside.
Example 3:
referring to fig. 9 to 12, the present invention also provides a dimmer switch comprising a dimmer switch body 6, a top cover 61 disposed on the top of the dimmer switch body 6, and an operation panel 62 disposed above the top cover 61, the dimmer switch body 6 is internally provided with a control circuit board 63 and an action rod 64, the control circuit board 63 is provided with the magnetic holding potentiometer 0, a first end of the action rod 64 is arranged in the hollow structure of the magnetic holding potentiometer 0, a second end of the action rod 64 is connected with the operation panel 62, when the operation panel 62 touches the action rod 64, the action rod 64 touches the positioning ring 3 of the magnetic holding potentiometer 0 to move radially until the conductive contact arm ring 33 contacts with the annular resistor 43, so that the magnetic holding potentiometer 0 is in a conducting state and keeps in a contact state under the action of the positioning iron ring 32 and the annular magnetic member 42;
the operating panel 62 is further provided with a pressing block 623, correspondingly, the top cover 61 is provided with a slot 611 through which the pressing block 623 passes, the pressing block 623 is used for being operationally triggered by a self-locking tact switch 66 arranged in the dimmer switch body 6, one end of the self-locking tact switch 66 is connected with a live wire, and the other end of the self-locking tact switch is connected with the control circuit board 63.
When the operation panel 62 is pressed downward against the edge portion, the actuating rod 64 is displaced, and the actuating rod 64 triggers the positioning ring 3 of the magnetic holding potentiometer 0 to move radially until the conductive contact arm ring 33 contacts with the annular resistor 43, i.e. the magnetic holding potentiometer 0 is triggered to operate.
Meanwhile, when the pressing block 623 moves downwards, the pressing block passes through the slot 611 and triggers the self-locking tact switch 66 to act, so that the starting state of the switch is switched, and the purpose of switching on and off of the load is achieved.
In a preferred embodiment, the second end of the actuating rod 64 is connected to the upper cover through a spherical structure 65, the spherical structure 65 includes a rotary sphere 651 and a socket provided on the top cover 61 for the rotary sphere 651 to rotate, and the rotary sphere 651 is connected to the second end of the actuating rod 64.
As a preferred embodiment, the back surface of the operation panel 62 is provided with a ring-shaped column 624, the height of the ring-shaped column 624 is smaller than the minimum distance between the operation panel 62 and the top cover 61, and when the operation panel 62 contacts with two top corners of the top cover 61, the ring-shaped column 624 contacts with the surface of the top cover 61 to limit the height of the ring-shaped column 624.
As a preferred embodiment, the operation panel 62 is further provided with a center shaft 621, and the center shaft 621 is located at the center of the annular column 624 and is used for touching the rotary sphere 651 to drive the actuating rod 64 to move, the center shaft 621 is sleeved with a reset piece 622, the center shaft 621 contacts with the second end of the actuating rod 64, in this embodiment, the reset piece 622 is a spring, the spring is sleeved on the center shaft 621 and is located in the inner cavity of the annular column 624, and the inner diameter of the spring can cover the spherical structure 65.
In a preferred embodiment, the control circuit board 63 is a thyristor voltage regulator circuit.
It should be noted that, in a specific application, the maximum moving distance of the actuating rod 64 should be equal to the effective triggering distance of the magnetic holding potentiometer 0. When the control operation panel 62 is displaced, the pressing block 623 moves downward and contacts and presses the self-locking tact switch 66 through the slot 611, and after the annular column 624 contacts the top cover 61, the pressing block 623 stops displacing downward. At this time, the entire downward displacement distance of the pressing block 623 is equal to the switching distance of the self-locking tact switch 66.
The foregoing is a detailed description of the invention, and specific examples are used herein to explain the principles and implementations of the invention, the above description being merely intended to facilitate an understanding of the principles and core concepts of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A magnetic holding potentiometer is characterized by comprising an annular upper cover, a conducting ring, a positioning ring and a magnetic resistance ring which are concentrically arranged in sequence, wherein a hollow structure is formed in the center of the positioning ring, and the positioning ring can be arranged in a sliding manner in the radial direction of the positioning ring;
the inner ring wall of the conducting ring is provided with a first extending part towards the center direction;
the positioning ring comprises an annular displacement cover, a positioning iron ring arranged on an inner ring of the annular displacement cover and extending towards the direction of the magnetic resistance ring, and a conductive contact arm ring arranged on an outer ring of the annular displacement cover and protruding towards the direction of the magnetic resistance ring;
the magnetic resistance ring comprises a magnetic resistance ring body, an annular magnetic part and an annular resistor, wherein the annular magnetic part is arranged on the inner ring of the magnetic resistance ring body and extends and protrudes towards the positioning ring direction;
the first extension part is in contact with the surface, facing the annular upper cover, of the annular displacement cover, the surface, facing the magnetic resistance ring, of the annular displacement cover is in contact with the annular magnetic part, and in an initial state, the conductive contact arm ring and the annular resistor are in a concentric disconnection state; when the positioning ring is triggered by external force, the conductive contact arm ring is in contact with the annular resistor and is kept in a contact and communication state under the attraction action of the positioning iron ring and the annular magnetic part.
2. A magnetic holding potentiometer according to claim 1, wherein the magnetic resistance ring further comprises a limiting ring disposed on the outer ring of the magnetic resistance ring body and protruding toward the annular upper cover, the limiting ring is configured to engage with the annular upper cover and limit the maximum displacement position of the conductive contact arm ring.
3. A magnetically held potentiometer according to claim 2, wherein the annular resistor is disposed on the magnetic resistance ring body between the annular magnetic member and the retaining ring and protrudes from the magnetic resistance ring body towards the retaining ring.
4. A magnetically held potentiometer according to any of claims 1-3, wherein the first extension is provided with a contact stator towards the positioning ring and the outer ring of the conductive ring is provided with a first terminal towards the outside, and wherein an electrically conductive wire is provided between the contact stator and the first terminal; correspondingly, a second terminal is arranged on the magnetic resistance ring body of the magnetic resistance ring, and the second terminal is electrically connected with the annular resistor.
5. A magnetic holding potentiometer according to any of claims 1-3, wherein the positioning iron ring has an inner diameter smaller than the inner diameter of the annular displacement cover and is fixedly connected to the annular displacement cover; the outer diameter of the positioning iron ring is smaller than the inner diameter of the annular magnetic part; the outer diameter of the positioning ring is smaller than the inner diameter of the conducting ring.
6. A magnetic holding potentiometer according to any of claims 1-3, wherein the ring resistor has a circular ring shape, and the resistance value of the ring resistor changes linearly with the rotation angle of the ring resistor.
7. A direction positioning rocker, which is characterized by comprising the magnetic holding potentiometer and a rocker according to any one of claims 1 to 6, wherein the rocker is sleeved in a hollow structure of the magnetic holding potentiometer, and the rocker acts to trigger a positioning ring of the magnetic holding potentiometer to move radially until an electric contact arm ring is in contact with an annular resistor so as to enable the magnetic holding potentiometer to be in a conducting state, and the positioning ring and the annular magnetic piece are kept in a contact state.
8. A light-adjusting switch is characterized by comprising a light-adjusting switch body, a top cover arranged at the top of the light-adjusting switch body and an operation panel arranged above the top cover, wherein a control circuit board and an action rod are arranged in the light-adjusting switch body, a magnetic-holding potentiometer according to any one of claims 1-6 is arranged on the control circuit board, the first end of the action rod is arranged in a hollow structure of the magnetic-holding potentiometer, the second end of the action rod is in contact with the operation panel, and when the action rod is triggered by the operation panel, the action rod triggers a positioning ring of the magnetic-holding potentiometer to move radially until a conductive contact arm ring is in contact with an annular resistor, so that the magnetic-holding potentiometer is in a conducting state, and the positioning iron ring is kept in contact with the annular magnetic part.
9. A dimmer switch as claimed in claim 8, wherein the operation panel is provided with a central shaft, the central shaft is sleeved with a reset member, and the central shaft contacts with the second end of the actuating rod.
10. A dimmer switch as claimed in claim 8 or 9, wherein the operating panel is further provided with a push block, the push block is operable to trigger with a self-locking tact switch disposed in the dimmer switch body, one end of the self-locking tact switch is connected to the live wire, and the other end of the self-locking tact switch is connected to the control circuit board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111469630.XA CN114220620B (en) | 2021-12-03 | 2021-12-03 | Magnetic latching potentiometer and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111469630.XA CN114220620B (en) | 2021-12-03 | 2021-12-03 | Magnetic latching potentiometer and application thereof |
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| CN114220620A true CN114220620A (en) | 2022-03-22 |
| CN114220620B CN114220620B (en) | 2024-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735930A (en) * | 2023-08-15 | 2023-09-12 | 江苏华鹏智能仪表科技股份有限公司 | Concentrator appurtenance |
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| JPH0574613A (en) * | 1991-09-12 | 1993-03-26 | Toyota Motor Corp | Potentiometer provided with switch |
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| WO2010105481A1 (en) * | 2009-03-20 | 2010-09-23 | 深圳市朗恒电子有限公司 | Mechanical turnplate type rotatably dimming device and dimming method thereof |
| CN107086100A (en) * | 2017-05-04 | 2017-08-22 | 湖南科技大学 | Magnetosensitive non-contact point potentiometer |
| CN108051017A (en) * | 2018-03-20 | 2018-05-18 | 东莞市锁之道科技有限公司 | A kind of rotational position sensor |
| CN216647961U (en) * | 2021-12-03 | 2022-05-31 | 何枫林 | Magnetic latching potentiometer, direction positioning rocker and dimmer switch |
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| JPH0574613A (en) * | 1991-09-12 | 1993-03-26 | Toyota Motor Corp | Potentiometer provided with switch |
| KR100731972B1 (en) * | 2006-03-28 | 2007-06-25 | 삼성전기주식회사 | Rotatable inputting apprartus |
| WO2010105481A1 (en) * | 2009-03-20 | 2010-09-23 | 深圳市朗恒电子有限公司 | Mechanical turnplate type rotatably dimming device and dimming method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116735930A (en) * | 2023-08-15 | 2023-09-12 | 江苏华鹏智能仪表科技股份有限公司 | Concentrator appurtenance |
| CN116735930B (en) * | 2023-08-15 | 2023-10-24 | 江苏华鹏智能仪表科技股份有限公司 | Concentrator appurtenance |
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|---|---|
| CN114220620B (en) | 2024-01-30 |
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