Non-contact knob

Abstract

The utility model relates to the technical field of electronic components, and specifically discloses a non-contact knob, which comprises a rotating assembly, a magnet arranged on the rotating axis of the rotating assembly, a fixed base, a base shell rotatably connected with the rotating assembly, and a sealing glue circuit board arranged in the base shell, wherein the sealing glue circuit board is arranged directly below the magnet and is provided with a multi-dimensional Hall sensor for converting linear motion and rotary motion of the magnet into an electric signal. The non-contact knob can effectively solve the problems of poor waterproof performance, easy wear and tear, and poor signal transmission stability of conventional knobs.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic components technical field especially relates to a non -contact knob. BACKGROUND

[0002] In the existing electronic equipment, the knob as a kind of common user interface component, is widely used to adjust volume, select channel, set temperature etc. Function. The traditional knob usually adopts the mechanical contact type signal transmission mode of code disc and carbon brush. Code disc is engraved with several concentric circle tracks, each track represents a different signal state, and carbon brush is in contact with code disc, with the rotation of knob, carbon brush slides on code disc, thereby changing the on-off state of circuit, realizes signal transmission.

[0003] However, this traditional signal transmission mode has the following several main problems:

[0004] ① Poor waterproof performance: since code disc and carbon brush need direct contact to transmit signal, this contact type structure makes it difficult for knob to realize complete sealing. In humid or liquid environment, moisture can easily invade the interior of knob, leading to corrosion or short circuit of code disc and carbon brush, seriously affecting the service life and reliability of knob.

[0005] ② High maintenance requirement: code disc and carbon brush will wear out during long-term use, which needs to be replaced regularly, increasing maintenance cost and complexity.

[0006] ③ Insufficient signal stability: due to the existence of mechanical contact, code disc and carbon brush are easily affected by external factors such as dust and oil stains, leading to unstable signal transmission and misoperation.

[0007] Therefore, the utility model is committed to developing a non-contact knob, aiming at solving the problems of poor waterproof performance, easy wear and poor signal transmission stability of traditional knob.

[0008] The above information disclosed in the background section is only included to enhance the understanding of the background of the present disclosure, and therefore can contain information that does not form prior art known to those of ordinary skill in the art at present. UTILITY MODEL CONTENT

[0009] One purpose of the utility model is to provide a non-contact knob, which can effectively solve the problems of poor waterproof performance, easy wear and poor signal transmission stability of traditional knob.

[0010] To achieve the above purpose, the utility model provides a non-contact knob, comprising:

[0011] A rotating assembly is provided with a magnet on the rotation axis of the rotating assembly.

[0012] The fixed base comprises a base shell connected with the rotating assembly and an encapsulated circuit board in the base shell; wherein the encapsulated circuit board is located directly below the magnet and is provided with a multi-dimensional Hall sensor for converting linear and rotational motion of the magnet into an electrical signal.

[0013] Optionally, the rotating assembly comprises:

[0014] The decorative ring is provided with a plurality of inner protrusions on the inner wall thereof;

[0015] The knob surface cover is located in the decorative ring and is provided with a surface cover clamping groove corresponding to each inner protrusion for clamping the corresponding inner protrusion.

[0016] Optionally, the base shell is externally provided with a hollow rotating shaft coaxial with the rotating axis, and the top of the hollow rotating shaft is provided with an outwardly protruding rotating shaft protrusion;

[0017] The non-contact knob further comprises:

[0018] The knob support is provided with a support sliding groove for sliding of the rotating shaft protrusion along the rotating axis of the rotating assembly;

[0019] The elastic rubber cap is located between the knob support and the base shell and is used to drive upward movement of the knob support relative to the base shell so that the rotating shaft protrusion abuts against the bottom of the support sliding groove.

[0020] Optionally, the decorative ring further comprises an outer ring member surrounding the knob surface cover and provided with the inner protrusions, an inner ring sleeve rotatably sleeved outside the knob support, and an intermediate connecting plate connecting the outer ring member and the inner ring sleeve.

[0021] Optionally, further comprising:

[0022] The rotating feel member is fixedly arranged on the knob support, and the bottom of the rotating feel member is provided with a plurality of feel protrusions facing the intermediate connecting plate.

[0023] Optionally, further comprising:

[0024] The feel spring plate is fixedly arranged on the intermediate connecting plate and is located between the intermediate connecting plate and the feel protrusions.

[0025] Optionally, the base shell is provided with a partition plate completely separating the elastic rubber cap and the encapsulated circuit board to limit entry of external water vapor into the base shell through the position where the partition plate is located.

[0026] Optionally, the bottom surface of the knob cover is provided with a cover protruding column extending into the hollow rotating shaft, and the magnet is fixed to the bottom of the cover protruding column.

[0027] The multi-dimensional Hall sensor and the magnet are separated by the separation plate.

[0028] Optionally, the encapsulated circuit board is provided with a plurality of indicator lamps for indicating the rotation and / or pressing state of the rotating assembly.

[0029] Optionally, the base shell is provided with a transparent cover sheet corresponding to the position of each indicator lamp.

[0030] The non-contact knob has the advantages that the magnet is arranged on the rotating assembly, the multi-dimensional Hall sensor is arranged on the fixed base, the multi-dimensional Hall sensor can complete signal transmission without contacting the magnet, so as to generate an electric signal adapted to the linear motion and rotary motion of the magnet.

[0031] Compared with the traditional contact knob, the rotating assembly and the fixed base do not need to be in physical contact, the encapsulated circuit board with high waterproof level can be used to improve the waterproof performance, mechanical wear and poor contact problems are avoided, and the problems of poor waterproof performance, easy wear and poor signal transmission stability of the traditional knob can be effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0033] Fig. 1 The structure schematic diagram of the non-contact knob provided for the embodiment;

[0034] Fig. 2 The partial cross-sectional schematic diagram of the non-contact knob provided for the embodiment;

[0035] Fig. 3 The explosion schematic diagram of the non-contact knob provided for the embodiment.

[0036] In the drawings:

[0037] 1, rotating assembly; 101, magnet; 102, decorative ring; 1021, inner protrusion; 1022, outer ring part; 1023, inner ring sleeve; 1024, middle connecting plate; 103, knob cover; 1031, cover clamping groove;

[0038] 2, fixed base; 201, base shell; 2011, hollow rotating shaft; 2012, rotating shaft boss; 2013, partition plate; 202, encapsulated circuit board; 2021, multi-dimensional Hall sensor; 2022, indicator light;

[0039] 3, knob support; 301, support sliding groove;

[0040] 4, elastic cap;

[0041] 5, rotating feeler;

[0042] 6, feeler elastic sheet. DETAILED DESCRIPTION

[0043] In the present application, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0044] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0045] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a kind of "or" logical relationship.

[0046] In the present application, such as "first" and "second", the terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0047] In the absence of more restrictions, in the utility model, the "including", "containing", "having" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the elements described, so that the process, method or product including a series of elements can not only include those defined elements, but also include other elements not explicitly listed, or also include the elements inherent in such process, method or product.

[0048] As the same understanding in the "examination guidelines", in the utility model, "greater than", "less than", "exceed" and other expressions are understood as not including the number; "above", "below", "within" and other expressions are understood as including the number. In addition, in the description of the embodiments of the utility model, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0049] In the description of the embodiments of the utility model, the spatial-related expressions used, such as "center", "vertical", "horizontal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or position relationship is based on the orientation or position relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of the utility model or for the reader to understand, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, therefore it cannot be understood as a limitation on the embodiments of the utility model.

[0050] Unless otherwise explicitly specified or limited, in the description of the embodiments of the utility model, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be understood broadly. For example, the "connection" can be fixed connection, or detachable connection, or integrated setting; it can be mechanical connection, or electrical connection, or communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art to which the utility model belongs, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0051] The utility model provides a kind of non-contact knob, it is applicable to the electronic equipment control interface needing high waterproof, wear resistance, stable signal transmission and multifunctional operation, such as smart home control system, car interior trim adjustment, high-grade audio equipment etc., it can effectively solve the problem of poor waterproof performance of traditional knob, easy to wear, and poor signal transmission stability.

[0052] Referring to Figs. 1-3 In the embodiment, the non-contact knob includes a rotating assembly 1 and a fixed base 2.

[0053] The rotating assembly 1 is provided with a magnet 101 on the rotation axis. The fixed base 2 includes a base shell 201 rotationally connected with the rotating assembly 1, and a sealed glue circuit board 202 located in the base shell 201; wherein the sealed glue circuit board 202 is located directly below the magnet 101 and is provided with a multi-dimensional Hall sensor 2021 for converting linear motion and rotational motion of the magnet 101 into electrical signals.

[0054] The sealed glue circuit board 202 is coated with waterproof glue on the surface of the circuit board to prevent external moisture from contacting the components and pads on the sealed glue circuit board 202, thereby achieving higher level of waterproofing.

[0055] The non-contact knob provided in the embodiment sets a magnet 101 on the rotating assembly 1 and a multi-dimensional Hall sensor 2021 on the fixed base 2. The multi-dimensional Hall sensor 2021 can complete signal transmission without contacting the magnet 101, so as to generate electrical signals compatible with linear motion and rotational motion of the magnet 101.

[0056] Compared with traditional contact knobs, the rotating assembly 1 and the fixed base 2 do not need to be physically contacted. Not only can the sealed glue circuit board 202 with higher waterproof level be used to improve waterproof performance, but also mechanical wear and poor contact problems are avoided, so as to effectively solve the problems of poor waterproof performance, easy wear and poor signal transmission stability of traditional knobs.

[0057] Optionally, the rotating assembly 1 includes a decorative ring 102 and a knob face cover 103. The inner wall of the decorative ring 102 is provided with a plurality of inner bosses 1021; the knob face cover 103 is located in the decorative ring 102, and the knob face cover 103 is provided with a face cover clamping groove 1031 corresponding to each inner boss 1021 for clamping the corresponding inner boss 1021.

[0058] The base shell 201 is provided with a hollow rotating shaft 2011 coaxial with the rotating axis, and the top of the hollow rotating shaft 2011 is provided with a rotating shaft boss 2012 protruding outward.

[0059] The non-contact knob further comprises a knob support 3 and an elastic cap 4. The knob support 3 is provided with a support sliding groove 301 for sliding of the rotating shaft boss 2012 along the rotating axis of the rotating assembly 1; the elastic cap 4 is located between the knob support 3 and the base shell 201, and is used to drive the knob support 3 to move upward relative to the base shell 201, so that the rotating shaft boss 2012 abuts against the bottom of the support sliding groove 301.

[0060] The base shell 201 is provided with a partition plate 2013 completely separating the elastic cap 4 and the encapsulated circuit board 202, so as to limit the external water vapor from entering the base shell 201 through the position where the partition plate 2013 is located. The bottom surface of the knob face cover 103 is provided with a cover protruding column extending into the hollow rotating shaft 2011, and the magnet 101 is fixedly arranged at the bottom of the cover protruding column. The multi-dimensional Hall sensor 2021 and the magnet 101 are separated by the partition plate 2013.

[0061] The decorative ring 102 further comprises an outer ring member 1022 surrounding the knob face cover 103 and provided with the inner ring bosses 1021, an inner ring sleeve 1023 rotatably sleeving the outside of the knob support 3, and an intermediate connecting plate 1024 connecting the outer ring member 1022 and the inner ring sleeve 1023.

[0062] The non-contact knob further comprises a rotating feeler 5 and a feeler elastic sheet 6. The rotating feeler 5 is fixedly arranged on the knob support 3, and the bottom of the rotating feeler 5 is provided with a plurality of feeler bosses facing the intermediate connecting plate 1024. The feeler elastic sheet 6 is fixedly arranged on the intermediate connecting plate 1024 and located between the intermediate connecting plate 1024 and the feeler bosses.

[0063] The encapsulated circuit board 202 is provided with a plurality of indicator lamps 2022 for indicating the rotating and / or pressing state of the rotating assembly 1, and the base shell 201 is provided with a transparent cover sheet corresponding to the position of each indicator lamp 2022.

[0064] The non-contact knob provided by the embodiment has the following working process:

[0065] (I) rotating operation

[0066] S101: A user rotates the decorative ring 102, and the decorative ring 102 drives the knob face cover 103 to rotate through cooperation of the inner ring bosses 1021 and the clamping grooves of the knob face cover 103.

[0067] S102: On one hand, when the knob face cover 103 rotates, the magnet 101 fixedly arranged at the bottom of the knob face cover 103 also rotates; the multi-dimensional Hall sensor 2021 detects the rotating movement of the magnet 101 and converts it into an electric signal.

[0068] S103: On the other hand, when the decorative ring 102 is rotated, the tactile spring 6 fixed on the decorative ring 102 rotates with the decorative ring 102, and the tactile spring 6 continuously knocks against each tactile boss during rotation, thereby producing a clicking sound and a clunky rotating feel.

[0069] (II) Pressing operation

[0070] S201: The user applies pressure to the knob cover 103, and the knob cover 103 drives the decorative ring 102 to move downward, thereby pressing the knob support 3 downward;

[0071] S202: The knob support 3 overcomes the elastic force of the elastic cap 4 and slides downward under the guidance of the shaft boss 2012 and the support sliding groove 301;

[0072] S203: The magnet 101 at the bottom of the knob cover 103 approaches the multi-dimensional Hall sensor 2021 as the knob support 3 slides downward;

[0073] S204: The multi-dimensional Hall sensor 2021 detects the linear motion of the magnet 101 and converts it into an electrical signal;

[0074] S205: After the knob cover 103 is released, the elastic action of the elastic cap 4 drives the knob support 3, the decorative ring 102, and the knob cover 103 to slide upward and reset.

[0075] (III) Signal output

[0076] After processing the rotation and pressing electrical signals, the encapsulated circuit board 202 displays the current state of the knob (such as the rotation angle and pressing action) through the indicator light 2022. The transparent cover is located on the base shell 201 corresponding to the position of the indicator light 2022, allowing the user to see the state of the indicator light 2022.

[0077] In summary, the non-contact knob provided in the embodiment has the following advantages:

[0078] ① High waterproof performance: Since the encapsulated circuit board 202 is used, i.e., waterproof glue is applied to the surface of the circuit board, it can effectively prevent external moisture from contacting the components and pads on the circuit board, thereby achieving a higher level of waterproof performance; This solves the problem of poor waterproof performance of traditional knobs due to the difficulty in sealing the code disc and carbon brush;

[0079] ② Reduce mechanical wear: The non-contact design means that the rotating assembly 1 and the fixed base 2 do not need to be in physical contact, thus avoiding the wear and tear problem caused by mechanical contact in traditional knobs, and improving the service life of the knob;

[0080] ③ Signal transmission stability: the multi-dimensional Hall sensor 2021 can non-contact detect the linear motion and rotational motion of the magnet 101 and convert it into an electrical signal. This signal transmission method is not affected by external factors such as dust and oil stains, providing more stable signal output;

[0081] ④ Multi-functional operation: this knob not only can realize rotation operation, but also can realize pressing operation, increasing the flexibility of user operation, suitable for more application scenarios;

[0082] ⑤ Good user experience: through the cooperation of the hand feeling spring 6 and the hand feeling boss, the user can obtain clear feedback sound and hand feeling when rotating the knob, improving the user experience;

[0083] ⑥ Clear state indication: through the combination of the indicator light 2022 and the transparent cover sheet, the user can clearly see the current state of the knob, such as the rotation angle, pressing action, etc., increasing the intuitiveness of operation.

[0084] Finally, it needs to be pointed out that although the above-mentioned embodiments have been described in the specification and drawings of the present application, it does not limit the patent protection scope of the present application. Any equivalent structure or equivalent flow replacement or modification based on the essential concept of the present application, using the content described in the specification and drawings, directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A touchless knob, characterized by, The utility model relates to a non-contact rotary knob, which comprises: a rotating assembly (1) provided with a magnet (101) on a rotating axis of the rotating assembly (1); a fixed base (2) comprising a base shell (201) rotationally connected with the rotating assembly (1) and an encapsulated circuit board (202) located in the base shell (201); wherein the encapsulated circuit board (202) is located directly below the magnet (101) and is provided with a multi-dimensional Hall sensor (2021) for converting linear motion and rotary motion of the magnet (101) into an electrical signal.

2. The touchless knob of claim 1, wherein, The rotating assembly (1) comprises: a decorative ring (102) provided with a plurality of inner protrusions (1021) on an inner wall of the decorative ring (102); a rotary knob cover (103) located in the decorative ring (102) and provided with a cover slot (1031) corresponding to each of the inner protrusions (1021) for clamping the corresponding inner protrusion (1021).

3. The touchless knob of claim 2, wherein, The base shell (201) is externally provided with a hollow rotating shaft (2011) coaxial with the rotating axis, and the top of the hollow rotating shaft (2011) is provided with a rotating shaft protrusion (2012) protruding outward; The non-contact rotary knob further comprises: a rotary knob support (3) provided with a support sliding groove (301) for sliding the rotating shaft protrusion (2012) along the rotating axis of the rotating assembly (1); a resilient cap (4) located between the rotary knob support (3) and the base shell (201) for driving the rotary knob support (3) to move upward relative to the base shell (201) so that the rotating shaft protrusion (2012) abuts against the bottom of the support sliding groove (301).

4. The touchless knob of claim 3, wherein, The decorative ring (102) further comprises an outer ring member (1022) surrounding the rotary knob cover (103) and provided with the inner protrusions (1021), an inner ring sleeve (1023) rotationally sleeved outside the rotary knob support (3), and a middle connecting plate (1024) connecting the outer ring member (1022) and the inner ring sleeve (1023).

5. The touchless knob of claim 4, wherein, Further comprising: a rotating feel member (5) fixed to the rotary knob support (3) and provided with a plurality of feel protrusions at the bottom of the rotating feel member (5) facing the middle connecting plate (1024).

6. The touchless knob of claim 5, wherein, Further comprising: a feel spring plate (6) fixed to the middle connecting plate (1024) and located between the middle connecting plate (1024) and the feel protrusions.

7. The touchless knob of claim 3, wherein, The base shell (201) is provided with a partition plate (2013) completely separating the resilient cap (4) and the encapsulated circuit board (202) to limit external moisture from entering the base shell (201) through the position where the partition plate (2013) is located.

8. The touchless knob of claim 7, wherein, The bottom surface of the rotary knob cover (103) is provided with a cover protruding column extending into the hollow rotating shaft (2011), and the magnet (101) is fixed to the bottom of the cover protruding column. The multi-dimensional Hall sensor (2021) is separated from the magnet (101) by the separation plate (2013).

9. The touchless knob of claim 8, wherein, The encapsulated circuit board (202) is provided with a plurality of indicator lamps (2022) for indicating the rotation and / or pressing state of the rotating assembly (1).

10. The touchless knob of claim 9, wherein, The base shell (201) is provided with a transparent cover corresponding to the position of each indicator lamp (2022).

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