Rotary knob

Abstract

The utility model provides a knob. The utility model relates to a battery charger, which comprises a base, a protective shell fixed on the base, a battery accommodated and fixed in the protective shell, a plastic contact plate fixed on one side of the protective shell far away from the base, a metal contact ring fixed on one side of the plastic contact plate far away from the protective shell, and a magnet block fixed on the plastic contact plate, the device comprises a base, a protective shell fixed to the base, a shell fixed to the outer side of the protective shell in a covering mode, a light guide cover fixed to the side, away from the base, of the shell, a circuit board fixed to the side, close to the base, of the light guide cover, and a Hall sensor fixed to the side, away from the light guide cover, of the circuit board. The surface patch is fixed on one side, far away from the shell, of the light guide cover; and the light guide panel covers the outer side of the light guide cover and is fixed on the shell. According to the knob, electric connection between the circuit board and the battery does not need an electric wire, so that the problem that the battery cannot supply power to the circuit board under the condition that the knob is used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of control buttons, and particularly relates to a knob. Background Art

[0002] A knob is a button that realizes control by manual rotation, and is mainly applied to control scenarios that require multi-stage adjustment, such as the firepower regulation of a gas stove and the wind power regulation of a range hood.

[0003] The knob has two installation methods: detachable and directly fixed. The detachable installation method designs the knob as a separate component, which mainly includes a rotating structure, a circuit board, a rechargeable battery, etc.

[0004] In the related art, in the knob with a detachable installation method, both the circuit board and the rechargeable battery are connected by wires. In this design, the wires will fatigue during the rotation of the knob. In the case of long-term use, the wires are prone to skin breakage or fracture, and ultimately the rechargeable battery cannot supply power to the circuit board. Content of the Utility Model

[0005] Aiming at the above deficiencies of the prior art, the utility model proposes a new knob to solve the problem that in the related art, the circuit board and the rechargeable battery of the knob are connected by wires, and in the case of long-term use, it is easy to cause the rechargeable battery to be unable to supply power to the circuit board.

[0006] The utility model provides a knob, which includes a base, a protective shell fixed to the base, a battery housed and fixed in the protective shell, a plastic contact plate fixed to the side of the protective shell away from the base, a metal contact ring fixed to the side of the plastic contact plate away from the protective shell, a magnet block fixed to the side of the plastic contact plate away from the metal contact ring, a housing fixedly covering the outside of the protective shell, a light guide cover fixed to the side of the housing away from the base, a circuit board fixed to the side of the light guide cover close to the base, a Hall sensor fixed to the side of the circuit board away from the light guide cover, a face sticker fixed to the side of the light guide cover away from the housing, and a light guide panel covering the outside of the light guide cover and fixed to the housing. The metal contact ring is electrically connected to the battery through a metal connector passing through the plastic contact plate and the protective shell in sequence, and the circuit board is electrically connected to the metal contact ring through a metal probe passing through the housing.

[0007] Preferably, the base includes a nut, a fastener sleeved and fixed on the outside of the nut, and a spring sleeved on the outside of the nut and fixed to the fastener. One end of the spring abuts against the side of the protective shell close to the base; the protective shell is fixed inside the nut.

[0008] Preferably, the protective case includes a first insertion part that is inserted and fixed inside the nut and is annular, a first extension part that extends outward from one end of the first insertion part away from the nut, a first bending part that bends and extends from the periphery of the first extension part toward the base, and a cover plate that covers the end of the first bending part and is fixedly connected to the outside of the first insertion part; the battery is annular and fixed to the outside of the first insertion part, the plastic contact plate is fixed to the first extension part, and the outer shell is inserted and fixed inside the first insertion part.

[0009] Preferably, a plurality of fixing grooves that are recessed inward and spaced apart from each other are provided inside the nut, and a plurality of fixing parts corresponding to the fixing grooves are provided on the outside of the first insertion part.

[0010] Preferably, a first installation groove is formed by being recessed inward on one side of the first extension part away from the base, and the plastic contact plate is fixed in the first installation groove.

[0011] Preferably, the outer shell includes a second insertion part that is inserted and fixed inside the first insertion part, a second extension part that extends outward from one end of the second insertion part away from the second insertion part, and a second bending part that bends and extends from the periphery of the second extension part toward the base; the light guide cover is fixed to the second extension part, and the light guide panel is fixed to the periphery of the second extension part.

[0012] Preferably, a second installation groove is formed by being recessed inward on one side of the second extension part away from the base, and the light guide cover is fixed in the second installation groove.

[0013] Preferably, an annular groove is formed by being recessed inward on one side of the plastic contact plate away from the protective case, and the metal contact ring is fixed in the annular groove.

[0014] Compared with the related technology, in the present utility model, the circuit board of the knob is first electrically connected to the metal contact ring through a metal probe, and then the metal contact ring is electrically connected to the battery through a metal connecting piece, so that the electrical connection between the circuit board and the battery does not require the use of wires, that is, the problem that the battery cannot supply power to the circuit board when the knob is used for a long time is avoided. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0016] Figure 1 A three-dimensional structural schematic diagram of a knob provided by an embodiment of the present utility model;

[0017] Figure 2 An exploded schematic diagram of the overall structure of a knob provided by an embodiment of the present utility model;

[0018] Figure 3 An exploded schematic diagram of a partial structure of a knob provided by an embodiment of the present utility model.

[0019] Wherein, 1. Base; 11. Nut; 111. Fixed groove; 12. Fastener; 13. Spring; 2. Protective shell; 21. First insertion part; 211. Fixed part; 22. First extension part; 222. First installation groove; 23. First bending part; 24. Cover plate; 3. Battery; 4. Plastic contact plate; 41. Ring-shaped groove; 42. Magnet block; 5. Metal contact ring; 51. Metal connecting piece; 6. Outer shell; 61. Second insertion part; 62. Second extension part; 622. Second installation groove; 63. Second bending part; 7. Light guide cover; 8. Circuit board; 81. Probe; 82. Hall sensor; 9. Face sticker; 10. Light guide panel. Detailed implementation manners

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] It should be noted that the expressions such as "upper", "lower", "left", and "right" mentioned in the embodiments of the present utility model are described with reference to the placement state in the attached drawings and should not be construed as restrictive embodiments of the present utility model. In addition, it should also be understood that in the text, when referring to an element "above" or "below" another element, it is possible that the element directly forms another element "above" or "below", or it is possible that the element forms another element "above" or "below" through an intermediate element.

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] An embodiment of the present utility model provides a knob, as shown in Figures 1 to 3 which includes a base 1, a protective shell 2 fixed to the base 1, a battery 3 housed and fixed in the protective shell 2, a plastic contact plate 4 fixed to one side of the protective shell 2 away from the base 1, a metal contact ring 5 fixed to one side of the plastic contact plate 4 away from the protective shell 2, a magnet block 42 fixed to one side of the plastic contact plate 4 away from the metal contact ring 5, a housing 6 fixedly covered on the outside of the protective shell 2, a light guide cover 7 fixed to one side of the housing 6 away from the base 1, a circuit board 8 fixed to one side of the light guide cover 7 close to the base 1, a Hall sensor 82 fixed to one side of the circuit board 8 away from the light guide cover 7, a face sticker 9 fixed to one side of the light guide cover 7 away from the housing 6, and a light guide panel 10 covered on the outside of the light guide cover 7 and fixed to the housing 6. The metal contact ring 5 is electrically connected to the battery 3 through a metal connector 51 sequentially passing through the plastic contact plate 4 and the protective shell 2. The circuit board 8 is in electrical contact with the metal contact ring 5 through a metal probe 81 passing through the housing 6. The face sticker 9 is electrically connected to the circuit board 8.

[0025] Among them, the base 1 includes a nut 11, a fastener 12 sleeved and fixed on the outside of the nut 11, and a spring 13 sleeved on the outside of the nut 11 and fixed to the fastener 12. One end of the spring 13 abuts against one side of the protective shell 2 close to the base 1; the protective shell 2 is fixed inside the nut 11. The nut 11 is used to be installed on the device to be controlled to achieve the effect of rotational control; the spring 13 is used to realize the pressing down or rebounding of the knob. When the knob is pressed down, the device to be controlled can be started.

[0026] The protective case 2 includes a first insertion part 21 that is inserted and fixed inside the nut 11 and is annular, a first extension part 22 formed by extending outward from one end of the first insertion part 21 away from the nut 11, a first bending part 23 formed by bending and extending the peripheral edge of the first extension part 22 toward the base 1, and a cover plate 24 that covers the end of the first bending part 23 and is fixedly connected to the outside of the first insertion part 21; the battery 3 is annular and fixed to the outside of the first insertion part 21, the plastic contact plate 4 is fixed to the first extension part 22, and the outer shell 6 is inserted and fixed inside the first insertion part 21. Such a design can better protect the battery 3 and prevent the battery 3 from being contaminated by water or dust.

[0027] The inner side of the nut 11 is provided with a plurality of fixing grooves 111 that are recessed inward and spaced apart from each other, and the outer side of the first insertion part 21 is provided with a plurality of fixing parts 211 corresponding to the fixing grooves 111. Such a design can fix the protective case 2 to the base 1 more stably.

[0028] One side of the first extension part 22 away from the base 1 is provided with a first installation groove 222 formed by being recessed inward, and the plastic contact plate 4 is fixed in the first installation groove 222. Such a design can save the installation space of the knob.

[0029] One side of the plastic contact plate 4 away from the protective case 2 is provided with an annular groove 41 formed by being recessed inward, and the metal contact ring 5 is fixed in the annular groove 41. Such a design can fix the metal contact ring 5 to the plastic contact plate 4 more stably.

[0030] The outer shell 6 includes a second insertion part 61 that is inserted and fixed inside the first insertion part 21, a second extension part 62 formed by extending outward from one end of the second insertion part 61 away from the second insertion part 61, and a second bending part 63 formed by bending and extending the peripheral edge of the second extension part 62 toward the base 1; the light guide cover 7 is fixed to the second extension part 62, and the light guide panel 10 is fixed to the peripheral edge of the second extension part 62. In this way, the outer shell 6 can be better fixed to the protective case 2 and can also protect the entire knob.

[0031] One side of the second extension part 62 away from the base 1 is provided with a second installation groove 622 formed by being recessed inward, and the light guide cover 7 is fixed in the second installation groove 622. Such a design can save the installation space of the knob.

[0032] The sticker 9 is used to display the firepower size adjusted by the knob and the corresponding functions, such as high fire, medium fire, and low fire, etc. Specifically, the display effect of the sticker 9 passes through the light guide cover 7 and the light guide panel 10 in sequence and is shown outward.

[0033] The control principle of the knob in this embodiment is to sense the position of the magnet block 42 through the Hall sensor 82 to achieve accurate firepower display and function adjustment of the knob; the Hall sensors 82 in this embodiment include four and the magnet blocks 42 include two.

[0034] When adjusting the firepower, the knob in this embodiment will send a corresponding signal to the receiving module of the range hood through the transmitting module of the gas stove. After receiving the corresponding signal, the receiving module of the range hood will control the ventilation intensity of the range hood through the built-in control panel to match the ventilation intensity of the range hood with the firepower of the gas stove. This is equivalent to a transmitting module on the gas stove and a receiving module on the range hood. The transmitting module and the receiving module can be connected via a line or a wireless network.

[0035] Compared with the related art, in the present embodiment, the circuit board 8 of the knob is first electrically connected to the metal contact ring 5 through the metal probe 81, and then the metal contact ring 5 is electrically connected to the battery 3 through the metal connector 51, so that the electrical connection between the circuit board 8 and the battery 3 does not require the use of wires, thereby avoiding the problem that the battery 3 cannot power the circuit board 8 when the knob is used for a long time.

[0036] It should be noted that the various embodiments described above with reference to the accompanying drawings are only used to illustrate the present invention rather than to limit the scope of the present invention. Those skilled in the art should understand that any modification or equivalent replacement of the present invention without departing from the spirit and scope of the present invention should be included in the scope of the present invention. In addition, unless otherwise indicated by the context, words appearing in the singular include the plural form, and vice versa. In addition, unless otherwise specified, all or part of any embodiment may be used in combination with all or part of any other embodiment.

Claims

1. A knob, characterized in that: The knob includes a base, a protective shell fixed to the base, a battery housed and fixed to the protective shell, a plastic contact plate fixed to a side of the protective shell away from the base, a metal contact ring fixed to a side of the plastic contact plate away from the protective shell, a magnet block fixed to a side of the plastic contact plate away from the metal contact ring, a shell covering and fixed to the outside of the protective shell, a light guide cover fixed to a side of the shell away from the base, a circuit board fixed to a side of the light guide cover close to the base, a Hall sensor fixed to a side of the circuit board away from the light guide cover, a surface sticker fixed to a side of the light guide cover away from the shell, and a light guide panel covering the outside of the light guide cover and fixed to the shell, the metal contact ring passes through the plastic contact plate and the protective shell in sequence through a metal connector to form an electrical connection with the battery, and the circuit board passes through the shell through a metal probe to contact the metal contact ring to form an electrical connection.

2. The knob according to claim 1, characterized in that: The base includes a nut, a fastener sleeved and fixed on the outside of the nut, and a spring sleeved on the outside of the nut and fixed to the fastener, one end of the spring abuts against a side of the protective shell close to the base; the protective shell is fixed on the inner side of the nut.

3. The knob according to claim 2, characterized in that: The protective shell includes a first annular inserting portion which is inserted and fixed on the inner side of the nut, a first extending portion which is extended outward from one end of the first inserting portion away from the nut, a first bending portion which is formed by bending and extending the periphery of the first extending portion toward the base, and a cover plate which covers the end of the first bending portion and is fixedly connected to the outer side of the first inserting portion; the battery is annular and fixed to the outer side of the first inserting portion, the plastic contact plate is fixed to the first extending portion, and the outer shell is inserted and fixed to the inner side of the first inserting portion.

4. The knob according to claim 3, characterized in that: A plurality of fixing grooves which are recessed inward and spaced apart from each other are provided on the inner side of the nut, and a plurality of fixing portions corresponding to the fixing grooves are provided on the outer side of the first inserting portion.

5. The knob according to claim 4, characterized in that: A first mounting groove is formed on a side of the first extension portion away from the base and is recessed inwardly, and the plastic contact plate is fixed in the first mounting groove.

6. The knob according to claim 3, characterized in that: The shell includes a second insertion portion inserted and fixed on the inner side of the first insertion portion, a second extension portion formed by extending outward from one end of the second insertion portion away from the second insertion portion, and a second bending portion formed by bending and extending the periphery of the second extension portion toward the base; the light guide cover is fixed to the second extension portion, and the light guide panel is fixed to the periphery of the second extension portion.

7. The knob according to claim 6, characterized in that: A second mounting groove is formed on a side of the second extension portion away from the base and is recessed inwardly, and the light guide cover is fixed in the second mounting groove.

8. The knob according to claim 1, characterized in that: A side of the plastic contact plate away from the protective shell is provided with an annular groove which is recessed inwards, and the metal contact ring is fixed in the annular groove.

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