Knob type adjusting assembly

Abstract

The utility model discloses a knob type adjusting assembly which comprises a rotating disc, a containing cavity is formed in the rotating disc, and two magnets are arranged in a groove of the containing cavity. The fixed seat is arranged in the accommodating cavity, and the PCB is arranged in the fixed seat; the base part is arranged at the bottom of the rotating disc and penetrates out of the hollow part of the rotating disc to be connected with the fixed seat, and the rotating disc is axially limited and can rotate in the radial direction; the plurality of Hall elements and the control chip are arranged on the PCB, and the Hall elements are positioned above the magnet; and the liquid crystal display screen is arranged above the PCB. According to the utility model, the two magnets and the plurality of Hall elements are used for replacing the function of an encoder, when the turntable drives the two magnets to rotate to a set position, one magnet corresponds to the Hall elements up and down, the other magnet is in a vacant position, and at the moment, the control chip calculates the relative coordinates of the magnets and the corresponding Hall elements to obtain the rotation angle and the rotation direction of the turntable; and then a corresponding control signal is output, so that the assembly work in a limited space is realized, the cost is low, and the use requirements are met.

Description

Technical Field

[0001] The utility model relates to an adjusting component, in particular to a knob-type adjusting component. Background Art

[0002] On some common household appliances, such as drum washing machines, there are often knob-type adjusting components. By manually turning the knob, the user can select the operation function of the appliance or adjust the time setting such as the reservation time.

[0003] Most of the existing control methods of knob-type adjusting components use encoders for control. However, currently, as products become more and more miniaturized, some knobs are made smaller and smaller, resulting in a narrower space for installing components. In this way, the traditional encoder cannot be placed in the corresponding installation space, so the production and assembly of the product cannot be carried out, which does not meet the production requirements of enterprises. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a knob-type adjusting component to overcome the deficiencies of the prior art. The component is convenient to operate, has a low cost, and can realize the control and adjustment of the appliance by the button in a narrow space.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a knob-type adjusting component, comprising:

[0006] A turntable, which has a receiving cavity inside. At least two grooves are opened in the receiving cavity, and the turntable is hollow.

[0007] Two magnets are arranged in any two of the grooves.

[0008] A fixed seat is arranged in the receiving cavity, and a PCB board is arranged inside the fixed seat.

[0009] A base part is arranged at the bottom of the turntable and passes through the hollow part of the turntable to be connected with the fixed seat. Among them, the turntable is axially limited between the fixed seat and the base part, and the turntable can rotate radially.

[0010] At least two Hall elements are arranged on the PCB board, and the Hall elements are located above the magnets.

[0011] A control chip is arranged on the PCB board. When the turntable drives the two magnets to rotate to a set position, one magnet corresponds to one Hall element vertically, and the other magnet is in a vacant position. The control chip is used to calculate the relative coordinates of the magnet and the corresponding Hall element.

[0012] A liquid crystal display screen is arranged above the PCB board.

[0013] Further, the number of the Hall elements is seven, and the seven Hall elements are evenly spaced and distributed on the upper surface of the PCB board.

[0014] Further, the circumferential direction of the turntable is frosted.

[0015] Further, the base portion includes a bottom plate; a convex ring adapted to the hollow of the turntable is provided at the upper end of the bottom plate; the convex ring is connected to the PCB board; a plurality of damping bumps are provided in the circumferential direction of the convex ring; a connecting column is provided at the lower end of the bottom plate.

[0016] Further, a damping mechanism is further provided between the bottom plate and the turntable; the damping mechanism includes a damping seat, damping balls, damping springs and fixing screws; two receiving openings are formed in the bottom plate, and a damping seat in a hollow shape is provided at the bottom of the receiving opening; the damping balls are arranged in the receiving openings, and the bottom of the damping balls is connected to the damping springs, and the fixing screws are arranged in the damping seats and connected to the other ends of the damping springs to telescopically arrange the damping balls in the damping seats up and down; a plurality of damping grooves are formed on one side of the turntable opposite to the damping balls.

[0017] Further, the number of the grooves is fourteen.

[0018] Further, the size of the liquid crystal display screen is 1.8 inches.

[0019] Further, the height difference between the magnet and the Hall element is 0 - 2 mm.

[0020] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0021] For the rotary knob adjustment assembly of the present utility model, by setting two magnets and a plurality of Hall elements to replace the control function of an encoder, when the turntable drives the two magnets to rotate to a set position, one magnet corresponds to one Hall element up and down, and the other magnet is in a vacant position. The control chip calculates the relative coordinates of the magnet and the corresponding Hall element to obtain the rotation angle and the change in the rotation direction of the turntable, and then outputs corresponding control signals, so as to complete the installation of the control system in a limited space, with low cost, meeting the processing requirements of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technical solutions of the present utility model will be further described below with reference to the drawings:

[0023] Figure 1 It is the front view of an embodiment of the present utility model;

[0024] Figure 2Exploded perspective view of a three-dimensional structure according to an embodiment of the present utility model;

[0025] Figure 3 Partial view of the base portion in an embodiment of the present utility model;

[0026] Figure 4 Exploded view showing the connection of the turntable, base portion and damping mechanism in an embodiment of the present utility model;

[0027] Figure 5 is Figure 1 cross-sectional view of;

[0028] Wherein: 1, turntable; 2, magnet; 3, PCB board; 4, base portion; 5, Hall; 6, control chip; 7, liquid crystal display screen; 8, fixing seat; 9, damping mechanism; 10, accommodation cavity; 11, groove; 40, bottom plate; 41, convex ring; 42, accommodation port; 43, connecting column; 90, damping seat; 91, damping ball; 92, damping spring; 93, fixing screw. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0030] The present utility model provides a knob-type adjustment assembly to solve the problem in the prior art that due to the narrow installation space, it is impossible to place a traditional encoder, and thus it is impossible to meet the production and processing of enterprises.

[0031] For ease of understanding, the specific process in the embodiments of the present application will be described below. Please refer to Figures 1 to 2 , a knob-type adjustment assembly in an embodiment of the present application includes a turntable 1, a magnet 2, a PCB board 3, a base portion 4, a Hall 5, a control chip 6, a liquid crystal display screen 7 and a fixing seat 8; the turntable 1 has an accommodation cavity 10 therein, at least two grooves 11 are formed in the accommodation cavity 10, and the turntable 1 is hollow; the two magnets 2 are arranged in any two of the grooves 11; the fixing seat 8 is arranged in the accommodation cavity 10, and a PCB board 3 is arranged in the fixing seat 8.

[0032] The base portion 4 is provided at the bottom of the turntable 1 and passes through the hollow of the turntable 1 and is connected to the fixed seat 8. At this time, the turntable 1 is axially limited between the fixed seat 8 and the base portion 4, and the turntable 1 can rotate radially; at least two Hall elements 5 are provided on the PCB board 3, and the Hall elements 5 are located above the magnet 2, and the liquid crystal display screen 7 is provided above the PCB board.

[0033] For the knob-type adjustment assembly of the present utility model, when the turntable 1 drives the two magnets 2 to rotate to a set position, one magnet 2 corresponds to one Hall element 5 vertically, and the other magnet 2 is in a vacant position. Then the control chip 6 can calculate the relative coordinates of the magnet 2 and the corresponding Hall element 5, and further obtain the rotation angle and the change in the rotation direction of the turntable 1, and output corresponding control signals. Thus, it is possible to complete the installation of the control system in a limited space without using an encoder, with low cost, meeting the usage requirements of enterprises.

[0034] Further, the height difference between the magnet 2 and the Hall element 5 is 0 - 2 mm, and in this embodiment, it is 1 mm.

[0035] Further, the number of the Hall elements 5 is seven, and the seven Hall elements 5 are evenly spaced on the upper surface of the PCB board 3. Setting multiple Hall elements 5 can respectively correspond to various functions to meet the diversified adjustment functions of the product.

[0036] Further, the circumferential direction of the turntable 1 is provided with knurling, which is mainly used to increase the friction force and aesthetics, and at the same time increase the anti-slip performance of the product. In this way, when manually rotating the turntable 1, it will not slip, facilitating actual use.

[0037] Further, based on Figure 2 and Figure 3 , the base portion 4 includes a bottom plate 40, the upper part of the bottom plate 40 is provided with a convex ring 41 adapted to the hollow of the turntable 1, the convex ring 41 is connected to the PCB board 3, and the lower part of the bottom plate 40 is provided with a connecting column 43, and the connecting column 43 is used to install the present adjustment assembly on the corresponding electrical appliance.

[0038] Further, a damping mechanism 9 is also provided between the bottom plate 40 and the turntable 1. Through the damping mechanism 9, a damping can be provided when the turntable 1 rotates, so as to correspondingly realize different operation functions through different dampings.

[0039] In this embodiment, the damping mechanism 9 includes a damping seat 90, damping balls 91, damping springs 92, and fixing screws 93. Two oppositely arranged receiving openings 42 are formed on the bottom plate 40, and a hollow damping seat 90 is provided at the bottom of the receiving opening 42. The damping balls 91 are installed in the receiving openings 42. At the same time, the bottom of the damping balls 91 is connected to the damping springs 92. The fixing screws 93 are threadedly connected to the damping seat 90 and are connected to the other ends of the damping springs 92 to vertically and telescopically arrange the damping balls 91 in the damping seat 90. A plurality of damping grooves 12 are formed on one side of the turntable 1 opposite to the damping balls 91.

[0040] During initial operation, the damping balls 91 are located above the receiving openings 42. When the turntable 1 rotates, the bottom of the turntable 1 directly contacts the damping balls 91, and the damping balls 91 are compressed downward in the damping seat 90 via the damping springs 92. When the turntable 1 rotates to a set position, the damping grooves 12 just correspond to the damping balls 91. Thus, due to the elastic force of the damping springs 92, the damping springs 92 drive the damping balls 91 to extend upward from the receiving openings 42 into the damping grooves 12, and the bottom plate 40 and the turntable 1 are snap-connected, thereby generating damping when the turntable 1 rotates.

[0041] Then, when the turntable 1 continues to rotate, the damping balls 91 move out of the damping grooves 12, and the bottom of the turntable 1 directly contacts the damping balls 91, so that the damping balls 91 are compressed in the damping seat 90 via the damping springs 92. Then, by repeating the cyclic operation, multiple dampings can be generated when the turntable 1 rotates, and each damping can correspond to a corresponding function.

[0042] In addition, the number of the damping grooves 12 in this embodiment is fourteen to correspond to seven function settings when the turntable 1 rotates left and right.

[0043] Furthermore, the number of the grooves 11 is fourteen, so that the two magnets 2 can be placed at any position of the grooves 11 to meet diverse adjustment requirements. The two magnets 2 are respectively used to identify the directions when the turntable 1 rotates left and right.

[0044] Furthermore, in this embodiment, the size of the liquid crystal display screen 7 is 1.8 inches. Of course, it can also be other sizes. Here, it mainly refers to a small-sized liquid crystal display screen because the corresponding installation space is small, so this adjustment component must be used to achieve the corresponding control function without using an encoder.

[0045] A specific embodiment is listed below for illustration. In this embodiment, there are 7 Hall elements, two magnets 2. The two magnets 2 respectively correspond to the left rotation and right rotation of the turntable 1. Fourteen damping grooves correspond to 7 left rotation functions and 7 right rotation functions.

[0046] The specific working steps are as follows:

[0047] When a corresponding operation function is required, manually operate the turntable 1 to rotate correspondingly on the bottom plate 40. When the turntable 1 rotates to a set position, the damping ball is exactly in the damping slot and then generates damping. At this time, the first magnet 2 corresponds to a Hall element up and down, and the other magnet 2 is in an empty position, that is, there is no Hall element corresponding to it.

[0048] At this time, the control chip 6 determines whether the corresponding magnet 2 is for left rotation or right rotation, and then the control chip 6 calculates the relative position of the magnet 2 and the corresponding Hall element 5 according to the signal, so as to judge the rotation angle of the turntable 1. In this way, the control chip 6 can judge the rotation angle and direction of the turntable 1 in real time, and then send out corresponding control signals.

[0049] When another adjustment function is required, continue to rotate the turntable 1 to another set position to generate damping, and then the control chip 6 can perform corresponding control. In this embodiment, there are fourteen dampings corresponding to it, among which seven dampings are the seven gears of the left rotation function, and the other seven are the gears of the right rotation function. Thus, the function adjustment of the electrical appliance is realized without using a relatively expensive rotary encoder, and the structure is simple and the cost is low, meeting the requirements of the enterprise.

[0050] The above is the case. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A knob-type adjustment assembly, characterized in that: include: A turntable (1), wherein the turntable (1) has a receiving cavity (10), wherein the receiving cavity (10) has at least two grooves (11), and the turntable (1) is hollow; A magnet (2), wherein two of the magnets (2) are arranged in any two of the grooves (11); A fixing seat (8) is arranged in the accommodating cavity (10), and a PCB board (3) is provided in the fixing seat (8); A base portion (4) is arranged at the bottom of the rotating disk (1) and is connected to the fixing seat (8) after passing through the hollow of the rotating disk (1), wherein the rotating disk (1) is axially limited between the fixing seat (8) and the base portion (4), and the rotating disk (1) can rotate radially; Hall (5), at least two Halls (5) are arranged on the PCB board (3), and the Halls (5) are located above the magnet (2); A control chip (6) is arranged on the PCB board (3), wherein when the turntable (1) drives the two magnets (2) to rotate radially to a set position, one magnet (2) corresponds to a Hall (5) up and down, while the other magnet (2) has no corresponding Hall (5), and the control chip (6) is used to calculate the relative coordinates of the magnet (2) and the corresponding Hall (5); A liquid crystal display screen (7) is arranged above the PCB board (3).

2. The knob-type adjustment assembly according to claim 1, characterized in that: The number of the Halls (5) is seven, and the seven Halls (5) are evenly spaced and distributed on the upper surface of the PCB board (3).

3. The knob-type adjustment assembly according to claim 1, characterized in that: The rotating disk (1) is also provided with knurling in the circumference thereof.

4. The knob type adjustment assembly according to claim 1, characterized in that: The base portion (4) comprises a bottom plate (40); a convex ring (41) adapted to fit the hollow of the turntable (1) is provided at the upper end of the bottom plate (40); the convex ring (41) is connected to the fixing seat (8); and a connecting column (43) is provided at the lower end of the bottom plate (40).

5. The knob-type adjustment assembly according to claim 4, characterized in that: A damping mechanism (9) is also provided between the base plate (40) and the turntable (1); the damping mechanism (9) comprises a damping seat (90), a damping ball (91), a damping spring (92) and a fixing screw (93); two accommodating openings (42) are provided on the base plate (40); a damping seat (90) in a hollow shape is provided at the bottom of the accommodating opening (42); the damping ball (91) is arranged in the accommodating opening (42), and the bottom of the damping ball (91) is connected to the damping spring (92); the fixing screw (93) is arranged in the damping seat and connected to the other end of the damping spring (92), and is arranged in the damping seat (90) for extending and retracting the damping ball (91) up and down; a plurality of damping grooves (12) are provided on the turntable (1) on a side opposite to the damping ball (91).

6. The knob type adjustment assembly according to claim 1, characterized in that: The number of the grooves (11) is fourteen.

7. The knob type adjustment assembly according to claim 1, characterized in that: The size of the liquid crystal display screen (7) is 1.8 inches.

8. The knob type adjustment assembly according to claim 1, characterized in that: The height difference between the magnet (2) and the Hall (5) is 0-2 mm.

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