A rotary knob with arbitrary angle keys

Abstract

The utility model relates to the technical field of key knob, concretely is a kind of knob of arbitrary angle key, including plastic shell and PCB board, the bottom of plastic shell is connected with PCB board by multiple groups of fixed screws, the inside of plastic shell is equipped with shell bore, the inside of shell bore is equipped with metal knob, the bottom of metal knob is connected with knob support, the surface of PCB board is connected with encoder, the inside of encoder is equipped with touch key. The metal knob of the utility model is connected by screw thread mode with knob support, is firm, reliable, can be tightened or loosened metal knob, it is convenient and fast to assemble or nondestructive disassembly metal knob, improve assembly efficiency;Through the matching linkage of bracket boss and the groove at encoder, key trigger can be realized on any point on the surface, especially on the edge of metal knob, leverage principle is used, and touch key can be triggered labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of button and knob technology, specifically a knob with buttons at any angle. Background Technology

[0002] With the increasing integration of consumer electronics, knobs often integrate buttons and lights. People's demands for knobs have evolved from simply having buttons and lights to now requiring knobs that are easy to use and convenient to operate.

[0003] A knob typically consists of an encoder and a knob assembly. Encoders are mechanically categorized into two types: shaft-mounted and sleeve-mounted. Shaft-mounted encoders rely on the knob assembly's center fitting into a shaft core for rotation and pressing. Overly tight assembly makes disassembly difficult, while overly loose assembly provides a poor user experience and is prone to detachment. Sleeve-mounted encoders require a snap-fit ​​knob bracket for connection, which is easily damaged during disassembly, leading to high maintenance costs. Both of these methods require pressing the center of the knob or applying significant force to the edge to activate the button. Therefore, we propose a knob with an arbitrary angle button to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a knob with an arbitrary angle button to solve the problems mentioned in the background art, such as the shaft type being too tight and difficult to disassemble, or too loose and providing a poor user experience, and being easy to fall off; the bushing type being prone to damage during disassembly, resulting in high maintenance costs; and the two types of button activation requiring pressing the center of the knob or pressing the edge of the knob with considerable force.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a knob with an arbitrary angle button, comprising a plastic shell and a PCB board. The bottom of the plastic shell is connected to the PCB board by multiple sets of fixing screws. An opening is provided inside the plastic shell, and a metal knob is provided inside the opening. A knob bracket is connected to the bottom of the metal knob. An encoder is connected to the surface of the PCB board, and a tactile button is provided inside the encoder. The outer side of the knob bracket is connected to the knob plane, the bottom of the knob bracket is connected to four sets of bracket protrusions, the surface of the encoder is provided with four sets of grooves, the bracket protrusions are embedded in the four sets of grooves, and the center of the touch button is connected to the center of the bracket.

[0006] Preferably, a metal threaded rod is fixedly connected to the bottom of the metal knob, and a bracket screw hole is opened at the center of the knob bracket. The metal knob is connected to the bracket screw hole at the knob bracket through the metal threaded rod.

[0007] Preferably, a light guide fixing ring is connected to the surface of the PCB board, and multiple sets of LED lights are arranged in a ring on the inner side of the light guide fixing ring. A light guide annular groove is connected to the surface of the light guide fixing ring, and a light shielding element is connected inside the light guide annular groove.

[0008] Preferably, the bottom of the light guide fixing ring is connected to three sets of buckles, the light guide fixing ring is fastened to the PCB board by the buckles, the inner wall of the light guide fixing ring is fixedly connected to the left light guide ring and the right light guide ring, and the outer edge of the knob bracket is fixedly connected to the left bracket lip and the right bracket lip.

[0009] Preferably, knob foam is attached to the bottom knob plane of the knob bracket, and the knob foam is located between the knob bracket and the encoder.

[0010] Preferably, the PCB board has a base plate fixing hole inside, and the knob bracket has a bracket fixing hole corresponding to the base plate fixing hole inside. A steel needle is inserted through the base plate fixing hole and the bracket fixing hole at the knob bracket inside the PCB board.

[0011] Preferably, the light guide fixing ring has three sets of holes on its outer side, the positions of which match the fixing screws, and the fixing screws pass through the PCB board, the light guide fixing ring and the plastic shell in sequence.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The metal knob and knob bracket of this utility model are connected by threads, which is stable and reliable. The metal knob can be tightened or loosened, which facilitates quick assembly or non-destructive disassembly of the metal knob and improves assembly efficiency. 2. This utility model uses the matching linkage between the bracket boss and the groove at the encoder. Rotating the metal knob can drive the encoder to rotate. The button trigger can be achieved at any point on the surface. Especially on the edge of the metal knob, the metal knob can drive the center of the bracket and the light touch button trigger function. Utilizing the lever principle, the light touch button can be triggered with less effort. Attached image description: To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is a structural breakdown diagram of the present invention; Figure 3This is a bottom schematic diagram of the knob bracket structure of this utility model; Figure 4 This is a bottom view of the structure of this utility model; Figure 5 This utility model Figure 2 A schematic diagram of the encoder structure; Figure 6 This utility model Figure 1 A schematic cross-sectional view of the plastic outer shell.

[0014] In the diagram: 1. Plastic outer shell; 101. Opening in the outer shell; 2. Metal knob; 201. Metal threaded rod; 3. Knob bracket; 301. Knob flat surface; 302. Bracket boss; 303. Left bracket lip; 304. Right bracket lip; 305. Bracket center; 306. Bracket screw hole; 307. Bracket fixing hole; 4. Knob foam; 5. Light shield; 6. Light guide fixing ring; 601. Light guide ring groove; 602. Buckle; 603. Left light guide ring; 604. Right light guide ring; 7. LED light; 8. Encoder; 801. Groove; 9. PCB board; 901. Base plate fixing hole; 10. Fixing screw; 11. Touch button. Detailed implementation method: The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This utility model provides an embodiment of a knob with an arbitrary angle button, including a plastic shell 1 and a PCB board 9. The bottom of the plastic shell 1 is connected to the PCB board 9 by multiple sets of fixing screws 10. The plastic shell 1 has a shell opening 101 inside, and a metal knob 2 is provided inside the shell opening 101. A knob bracket 3 is connected to the bottom of the metal knob 2. An encoder 8 is connected to the surface of the PCB board 9. The encoder 8 is model EC180102X2X-VH1-000. A tactile button 11 is provided inside the encoder 8. The metal knob 2 can rotate smoothly clockwise and counterclockwise. The bottom tactile button 11 can be triggered by pressing any point on the front of the metal knob 2. In particular, pressing the edge of the metal knob 2 satisfies the lever principle and can trigger the bottom tactile button 11 with less effort. The outer side of the knob bracket 3 is connected to the knob plane 301, and the bottom of the knob bracket 3 is connected to four sets of bracket protrusions 302. The surface of the encoder 8 is provided with four sets of grooves 801, and the bracket protrusions 302 are embedded in the four sets of grooves 801. The center of the light touch button 11 is connected to the bracket center 305. The knob bracket 3 is connected to the encoder 8 to achieve linkage. Rotating the metal knob 2 can drive the encoder 8 to rotate. This device solves the problems of shaft-type assembly being too tight and difficult to disassemble, or too loose and unpleasant to use, and easy to fall off; shaft sleeve-type buckles are easily damaged during disassembly, resulting in high maintenance costs; and both types of button triggering require pressing the center of the knob or pressing the edge of the knob with considerable force to trigger.

[0016] Furthermore, a metal threaded rod 201 is fixedly connected to the bottom of the metal knob 2, and a bracket screw hole 306 is opened at the center of the knob bracket 3. The metal knob 2 is threadedly connected to the bracket screw hole 306 at the knob bracket 3 through the metal threaded rod 201. Figure 6 As shown, this structure is used to screw the bottom metal threaded rod 201 into the bracket screw hole 306 by rotating the metal knob 2. After being screwed to the bottom, the metal knob 2 and the knob bracket 3 are connected as one piece by the thread, which is convenient for assembly and disassembly.

[0017] Furthermore, a light guide fixing ring 6 is connected to the surface of the PCB board 9. Multiple sets of LEDs 7 are arranged in a ring around the inner side of the light guide fixing ring 6. A light guide annular groove 601 is connected to the surface of the light guide fixing ring 6, and a light-shielding member 5 is connected inside the light guide annular groove 601. For example... Figure 1 and Figure 2 As shown, this structure is used to assemble the light-shielding member 5 into the light guide annular groove 601 of the light guide fixing ring 6 through multiple sets of LED lights 7. The light is only exposed in the light guide annular groove 601, which makes it easy to find the switch position at night.

[0018] Furthermore, the bottom of the light guide fixing ring 6 is connected to three sets of clips 602. The light guide fixing ring 6 is fastened to the PCB board 9 by the clips 602. The inner wall of the light guide fixing ring 6 is fixedly connected to the left light guide ring 603 and the right light guide ring 604. The outer edge of the knob bracket 3 is fixedly connected to the left bracket lip 303 and the right bracket lip 304. Figure 6 As shown, this structure is used to connect the light guide fixing ring 6 to the PCB board 9 via the buckle 602, which facilitates disassembly and assembly. At the same time, when fixing the light guide fixing ring 6, the left light guide ring 603 and the right light guide ring 604 press down on the left bracket lip 303 and the right bracket lip 304, thereby restricting the knob bracket 3 from moving upward.

[0019] Furthermore, knob foam 4 is attached to the bottom knob plane 301 of the knob bracket 3, and the knob foam 4 is located between the knob bracket 3 and the encoder 8. For example... Figure 6 As shown, this structure is used to tilt the knob support 3 and squeeze the knob foam 4 when the metal knob 2 is pressed, thus providing a buffering and rebounding effect.

[0020] Furthermore, the PCB board 9 has a base plate fixing hole 901 inside, and the knob bracket 3 has a bracket fixing hole 307 corresponding to the base plate fixing hole 901 inside. A steel needle is inserted through the base plate fixing hole 901 and the bracket fixing hole 307 at the knob bracket 3 inside the PCB board 9. Figure 6 As shown, this structure is used to restrict the rotation of the knob bracket 3 by passing a steel needle through the base plate fixing hole 901 and the bracket fixing hole 307 at the knob bracket 3, so as to facilitate tightening or loosening of the metal knob 2.

[0021] Furthermore, the outer side of the light guide fixing ring 6 has three sets of holes, the positions of which match the fixing screws 10. The fixing screws 10 pass through the PCB board 9, the light guide fixing ring 6, and the plastic shell 1 in sequence, and are simultaneously fixed together with the light guide fixing ring 6 between them. Figure 2 and Figure 6 As shown, this structure is used to fix the PCB board 9, the light guide ring 6 and the plastic shell 1 together by fixing screws 10, thereby improving the robustness of the device.

[0022] Working principle: When using, such as Figure 2 and Figure 5 As shown, first, attach the tactile button 11, encoder 8, and 6 LEDs 7 sequentially to the surface of the PCB board 9. Then, attach knob foam 4 to the knob plane 301 at the bottom of the knob bracket 3. Next, the four bracket protrusions 302 at the knob bracket 3 are inserted into the four grooves 801 at the encoder 8 to achieve linkage. Rotating the knob bracket 3 will drive the encoder 8 to rotate. Then, the three clips 602 at the light guide fixing ring 6 are fastened to the PCB board 9 to fix the light guide fixing ring 6. At the same time, the left light guide ring 603 and the right light guide ring 604 at the light guide fixing ring 6 press against the left bracket lip 303 and the right bracket lip 304, respectively. Assemble the light shield 5 in the light guide ring groove 601. The light is only emitted from the light guide. Exposed in the annular groove 601, install the metal knob 2. Use a steel needle to pass through the base plate fixing hole 901 and the bracket fixing hole 307 at the knob bracket 3 to restrict the rotation of the knob bracket 3. Screw the metal threaded rod 201 into the bracket screw hole 306. After screwing it all the way in, the metal knob 2 and the knob bracket 3 are connected as one unit by the thread. After removing the steel needle, rotating the outermost metal knob 2 will drive the encoder 8 to rotate. If it is necessary to disassemble, insert the steel needle to restrict the rotation of the knob bracket 3, and unscrew the metal threaded rod 201 to achieve non-destructive disassembly. Pass the assembled metal knob 2 assembly through the outer shell opening 101, and use 3 fixing screws 10 to fix the PCB board 9, the light guide fixing ring 6 and the plastic shell 1. like Figure 1 and Figure 6 As shown, by pressing the metal knob 2, a cross-section is made at the center of the bracket center 305. Supported by a full circle of knob foam 4, the left bracket lip 303 is in contact with the left light guide ring 603, and the right bracket lip 304 is in contact with the right light guide ring 604. If force is applied downward at the far right of the metal knob 2, the right bracket lip 304 and the right light guide ring 604 will change from being in contact to being separated. The left bracket lip 303 acts as a fulcrum, and the bracket center 305 moves downward under force, triggering the light touch button 11 function. According to the lever principle, the lever arm of the applied force is longer than the lever arm from the fulcrum to the bracket center 305. Applying force with less effort can trigger the light touch button 11 function. Since countless cross-sections can be made at the center of the metal knob 2, the bottom light touch button 11 can be triggered by pressing the metal knob 2 at any angle. The effortless light touch button 11 function is even more evident at the edge of the metal knob 2. The above is the complete working principle of this utility model.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A knob with an arbitrary angle button, comprising a plastic housing (1) and a PCB board (9), characterized in that: The bottom of the plastic shell (1) is connected to the PCB board (9) by multiple sets of fixing screws (10). The plastic shell (1) has a shell opening (101) inside. A metal knob (2) is provided inside the shell opening (101). A knob bracket (3) is connected to the bottom of the metal knob (2). An encoder (8) is connected to the surface of the PCB board (9). A touch button (11) is provided inside the encoder (8). The knob bracket (3) is connected to a knob plane (301) on the outside. The knob bracket (3) is connected to four sets of bracket bosses (302) at the bottom. The encoder (8) has four sets of grooves (801) on its surface. The bracket bosses (302) are embedded in the four sets of grooves (801). The center of the touch button (11) is connected to the center of the bracket (305).

2. The knob with an arbitrary angle button according to claim 1, characterized in that: The bottom of the metal knob (2) is fixedly connected to a metal threaded rod (201), and a bracket screw hole (306) is opened at the center of the knob bracket (3). The metal knob (2) is connected to the bracket screw hole (306) at the knob bracket (3) through the metal threaded rod (201).

3. The knob with an arbitrary angle button according to claim 1, characterized in that: The surface of the PCB board (9) is connected to a light guide fixing ring (6), and multiple sets of LED lights (7) are arranged in a ring on the inner side of the light guide fixing ring (6). The surface of the light guide fixing ring (6) is connected to a light guide annular groove (601), and a light shield (5) is connected inside the light guide annular groove (601).

4. A knob with an arbitrary angle button according to claim 3, characterized in that: The bottom of the light guide fixing ring (6) is connected to three sets of buckles (602). The light guide fixing ring (6) is fastened to the PCB board (9) by the buckles (602). The inner wall of the light guide fixing ring (6) is fixedly connected to the left light guide ring (603) and the right light guide ring (604). The outer edge of the knob bracket (3) is fixedly connected to the left bracket lip (303) and the right bracket lip (304).

5. A knob with an arbitrary angle button according to claim 1, characterized in that: Knob foam (4) is attached to the bottom knob plane (301) of the knob bracket (3), and the knob foam (4) is located between the knob bracket (3) and the encoder (8).

6. A knob with an arbitrary angle button according to claim 1, characterized in that: The PCB board (9) has a base plate fixing hole (901) inside, and the knob bracket (3) has a bracket fixing hole (307) corresponding to the base plate fixing hole (901) inside. A steel needle is passed through the base plate fixing hole (901) and the bracket fixing hole (307) at the knob bracket (3) inside the PCB board (9).

7. A knob with an arbitrary angle button according to claim 3, characterized in that: The light guide fixing ring (6) has three sets of holes on its outer side. The position of the holes matches the fixing screw (10). The fixing screw (10) passes through the PCB board (9), the light guide fixing ring (6) and the plastic shell (1) in sequence.

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