A volume adjustment knob and an installation method

Abstract

The present invention discloses a volume adjustment knob and an installation method. The volume adjustment knob includes a lower cover, an outer knob assembly, a bearing, an optical sensor, and a cover plate group. The outer knob assembly includes a bearing pressing plate, an optical scale baffle, and a knob. The bearing pressing plate, the optical scale baffle, and the knob are all annular. The optical scale baffle is provided with a plurality of sensing protrusions arranged at intervals. The bearing has an inner ring and an outer ring rotatably connected to the inner ring. The cover plate group is fixedly connected to the lower cover and encloses a first slot arranged horizontally with the lower cover. The inner ring of the bearing is fixed in the first slot. The bearing pressing plate, the optical scale baffle, and the knob are all sleeved outside the cover plate group at intervals and are all arranged at intervals with the lower cover. The bearing pressing plate and the optical scale baffle are both installed on the knob. The bearing pressing plate, the optical scale baffle, and the knob enclose a second slot arranged opposite to the first slot. The outer ring of the bearing is installed in the second slot. The optical sensor is installed on the cover plate group and the optical sensor is correspondingly arranged with one of the sensing protrusions.

Description

Technical Field

[0001] The present invention relates to the technical field of Bluetooth smart speakers, and particularly to a volume adjustment knob and an installation method thereof. Background Art

[0002] Most of the existing speakers in the market adopt rotary volume adjustment, that is, a plastic or metal knob cap is sleeved on the knob of the potentiometer to realize rotation for adjusting the volume.

[0003] However, the larger the diameter of the knob of the potentiometer, the more obvious the shaking of the knob cap during rotation, and the worse the rotational damping feel. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a volume adjustment knob and an installation method thereof, which can effectively solve the problem that most of the existing speakers adopt rotary volume adjustment, and the knob cap will shake significantly during rotation, and the rotational damping feel is very poor.

[0005] The present invention is realized by adopting the following technical solutions:

[0006] The present invention provides a volume adjustment knob, which includes a lower cover, an outer knob assembly, a bearing, an optical sensor, and a cover plate group. The outer knob assembly includes a bearing pressing plate, an optical scale baffle, and a knob. The bearing pressing plate, the optical scale baffle, and the knob are all annular. The optical scale baffle is provided with a plurality of spaced-apart sensing protrusions along its circumference. The bearing has an inner ring and an outer ring rotatably connected to the inner ring. The cover plate group is fixedly connected to the lower cover and encloses a horizontally arranged first card slot with the lower cover. The inner ring of the bearing is fixed in the first card slot. The bearing pressing plate, the optical scale baffle, and the knob are all sleeved outside the cover plate group at intervals and are all spaced from the lower cover. The bearing pressing plate and the optical scale baffle are both installed on the knob, and the bearing pressing plate, the optical scale baffle, and the knob enclose a second card slot opposite to the first card slot. The outer ring of the bearing is installed in the second card slot. The optical sensor is installed on the cover plate group and the optical sensor is correspondingly arranged with one of the sensing protrusions of the optical scale baffle.

[0007] Further, one side of the lower cover facing the cover plate group has a receiving cavity, a convex platform and an annular convex plate protruding from the receiving cavity. The annular convex plate and the convex platform are coaxially arranged, and the outer diameter of the annular convex plate is greater than the outer diameter of the convex platform. The cover plate group is fixedly connected to the convex platform. The annular convex plate, the convex platform, and the cover plate group enclose the first card slot. The bearing pressing plate is located in the receiving cavity.

[0008] Further, the cover plate group includes an upper cover and a partition plate disposed between the upper cover and the lower cover. The outer diameter of the partition plate is smaller than that of the upper cover. Both the upper cover and the partition plate are fixed to the convex platform. The optical sensor is installed on one side of the upper cover facing the lower cover. The annular convex plate, the convex platform, and the partition plate enclose the first card slot.

[0009] Further, the partition plate is horizontally recessed with a notch, and the optical sensor is located within the notch.

[0010] Further, the cover plate group further includes an outer cover, and the outer cover is buckled on one side of the upper cover away from the partition plate.

[0011] Further, the knob includes an annular side plate and a first annular baffle protruding from the inner side wall of the annular side plate. The bearing pressing plate is installed on the annular side plate. The optical scale baffle is installed on one side of the first annular baffle facing the bearing pressing plate, and the optical scale baffle, the annular side plate, and the bearing pressing plate enclose the second card slot.

[0012] Further, an annular groove is recessed on one side of the annular side plate close to the bottom wall of the accommodating cavity. The bearing pressing plate includes an annular fixing plate installed in the annular groove and a second annular baffle protruding from the inner side wall of the annular fixing plate. The optical scale baffle, the annular side plate, and the second annular baffle enclose the second card slot.

[0013] Further, the optical sensor has a through - recessed cavity, and the sensing protrusion partially extends into the cavity.

[0014] The present invention also provides an installation method for the volume - adjusting knob described above. The method includes the following steps:

[0015] Assemble the outer knob assembly and the bearing: Place the optical scale baffle from the bottom of the knob inside the knob and abut it against the first annular baffle. Then place the bearing inside the knob so that the optical scale baffle is clamped between the outer ring of the bearing and the first annular baffle. Finally, fix the bearing pressing plate at the bottom of the knob so that the outer ring of the bearing is fixed between the optical scale baffle and the bearing pressing plate;

[0016] Assemble the partition plate and the lower cover: Sleeve the bearing with the outer knob assembly on the convex platform. Fix the partition plate on the convex platform so that the inner ring of the bearing is fixed between the partition plate and the annular convex plate;

[0017] Assemble the upper cover and the optical sensor: Install the optical sensor at the bottom of the upper cover and set it corresponding to the sensing protrusion, and then fix the upper cover on the convex platform.

[0018] Further, the method further includes:

[0019] Assemble the outer cover: Snap the outer cover onto the side of the upper cover away from the partition board.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the present invention, a bearing is used to rotatably connect the outer knob assembly and the cover plate group to achieve knob-type volume adjustment. The outer diameter of the volume adjustment knob can be set as required, effectively solving the problem of shaking. The hand feeling and the number of uses of consumers can be improved qualitatively, providing a new design method for the volume adjustment knobs of future high-end speaker products. Description of the Drawings

[0022] Figure 1 is a schematic structural view of the volume adjustment knob provided by an embodiment of the present invention;

[0023] Figure 2 is a top view of the volume adjustment knob provided by an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view along the Figure 2 A-A line in

[0025] Figure 4 is Figure 3 a partially enlarged schematic view at B in

[0026] Figure 5 is an exploded Figure 1 ;

[0027] Figure 6 is an exploded Figure 2 ;

[0028] Figure 7 is an exploded Figure 3 ;

[0029] Figure 8 is a schematic structural view of the knob provided by an embodiment of the present invention;

[0030] Figure 9 is a schematic structural view of the optical scale baffle provided by an embodiment of the present invention.

[0031] In the figure: 10, lower cover; 11, accommodation cavity; 12, boss; 13, annular convex plate; 20, outer knob assembly; 21, bearing pressing plate; 211, annular fixing plate; 212, second annular baffle; 22, optical scale baffle; 221, induction protrusion; 222, annular accommodation groove; 23, knob; 231, annular side plate; 2311, annular groove; 232, first annular baffle; 24, second card slot; 30, bearing; 31, inner ring; 32, outer ring; 33, ball connection part; 40, optical sensor; 41, vertical sensing part; 42, horizontal sensing part; 43, concave cavity; 50, cover plate group; 51, upper cover; 52, partition plate; 521, notch; 53, outer cover; 60, first card slot. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0035] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] Please refer to Figures 1 to 4, an embodiment of the present invention provides a volume adjustment knob, which includes a lower cover 10, an outer knob assembly 20, a bearing 30, an optical sensor 40, and a cover plate group 50. The cover plate group 50 is fixed on the lower cover 10 and remains stationary. The outer knob assembly 20 is rotatably sleeved outside the cover plate group 50 through the bearing 30. The cover plate group 50, the lower cover 10, and the outer knob assembly 20 are coaxially arranged. The optical sensor 40 is installed on the cover plate group 50 and is correspondingly arranged with the outer knob assembly 20.

[0037] Please further refer to Figure 5 , Figure 7 and Figure 9 , specifically, the outer knob assembly 20 includes a bearing pressing plate 21, an optical scale baffle 22, and a knob 23. The bearing pressing plate 21, the optical scale baffle 22, and the knob 23 are all annular. The optical scale baffle 22 is provided with a plurality of spaced induction protrusions 221 along its circumferential direction, and each induction protrusion 221 encloses an annular shape. The bearing 30 has an inner ring 31 and an outer ring 32 rotatably connected to the inner ring 31. There is a ball connection portion 33 that is recessed inward along the height direction between the inner ring 31 and the outer ring 32. The cover plate group 50 is fixedly connected to the lower cover 10 and encloses a horizontally arranged first card slot 60 with the lower cover 10. The inner ring 31 of the bearing 30 is fixed in the first card slot 60.

[0038] The bearing pressing plate 21, the optical scale baffle 22, and the knob 23 are all spaced and sleeved outside the cover plate group 50. The bearing pressing plate 21, the optical scale baffle 22, and the knob 23 are all spaced from the lower cover 10. The optical scale baffle 22 and the bearing pressing plate 21 are both fixedly installed on the knob 23, and the bearing pressing plate 21, the optical scale baffle 22, and the knob 23 enclose a second card slot 24 that is oppositely arranged with the first card slot 60. Both the first card slot 60 and the second card slot 24 are annular. The outer ring 32 of the bearing 30 is installed in the second card slot 24, so that the outer knob assembly 20 is rotatably connected to the lower cover 10 and the cover plate group 50 through the bearing 30, avoiding shaking when the outer knob assembly 20 rotates.

[0039] The optical sensor 40 is installed on the cover plate group 50, and the optical sensor 40 is correspondingly arranged with one of the induction protrusions 221 of the optical scale baffle 22. When the outer knob assembly 20 is rotated, each induction protrusion 221 on the optical scale baffle 22 will also rotate accordingly. The optical sensor 40 transmits the sensed signal to the controller through Bluetooth to achieve the adjustment of the sound volume.

[0040] One side of the lower cover 10 facing the cover plate group 50 is provided with a receiving cavity 11, a boss 12 and an annular convex plate 13. The boss 12 and the annular convex plate 13 both protrude into the receiving cavity 11. The annular convex plate 13 is coaxially arranged with the boss 12, the annular convex plate 13 is closely arranged against the boss 12, and the outer diameter of the annular convex plate 13 is larger than the outer diameter of the boss 12. The cover plate group 50 is fixedly connected to the boss 12. The annular convex plate 13, the boss 12 and the cover plate group 50 enclose the above-mentioned first card slot 60. The bearing pressing plate 21 is located in the receiving cavity 11 and is spaced from the inner wall of the receiving cavity 11.

[0041] Please further refer to Figure 6 , in this embodiment, the cover plate group 50 includes an upper cover 51 and a partition plate 52 arranged between the upper cover 51 and the lower cover 10. The outer diameter of the partition plate 52 is smaller than the outer diameter of the upper cover 51. Both the upper cover 51 and the partition plate 52 are fixed to the boss 12 by screws. Of course, the upper cover 51 can also be fixed to the partition plate 52. The optical sensor 40 is installed on one side of the upper cover 51 facing the lower cover 10, that is, the optical sensor 40 is installed at the bottom of the upper cover 51. The annular convex plate 13, the boss 12 and the partition plate 52 enclose the above-mentioned first card slot 60.

[0042] As a preferred embodiment, the partition plate 52 is transversely recessed with a notch 521, and the optical sensor 40 is located in the notch 521, which can reduce the lateral dimension of the volume adjustment knob and make the internal structure of the volume adjustment knob more compact. The optical sensor 40 can be in contact with the partition plate 52 or spaced from the partition plate 52.

[0043] The cover plate group 50 further includes an outer cover 53, and the outer cover 53 is buckled on the side of the upper cover 51 away from the partition plate 52 to cover the machined part of the upper cover 51 and make the appearance of the volume adjustment knob better.

[0044] Please further refer to Figure 8 , the knob 23 includes an annular side plate 231 and a first annular baffle 232 protruding from the inner side wall of the annular side plate 231. The knob 23 is formed by turning. The bearing pressing plate 21 is installed on the annular side plate 231. The optical scale baffle 22 is installed on the side of the first annular baffle 232 facing the bearing pressing plate 21. The optical scale baffle 22 is formed by a plastic injection mold. The optical scale baffle 22 rotates depending on each induction protrusion 221 so that the optical sensor 40 obtains an induction. The upper cover 51 and the outer cover 53 are both located on the side of the first annular baffle 232 away from the bearing pressing plate 21. The top of the outer cover 53 is lower than the top of the annular side plate 231. The optical scale baffle 22, the annular side plate 231 and the bearing pressing plate 21 enclose the above-mentioned second card slot 24.

[0045] Specifically, an annular groove 2311 is recessed on one side of the annular side plate 231 close to the bottom wall of the accommodation cavity 11. The bearing pressing plate 21 includes an annular fixing plate 211 and a second annular baffle 212 protruding from the inner side wall of the annular fixing plate 211. The second annular baffle 212 is arranged close to the bottom of the annular fixing plate 211. The annular fixing plate 211 is installed in the annular groove 2311 through a plurality of screws. The optical scale baffle 22, the annular side plate 231, and the second annular baffle 212 enclose the second card slot 24 described above.

[0046] As a preferred embodiment, the optical sensor 40 has a through concave cavity 43. The optical sensor 40 includes two vertically spaced sensing parts 41 and a transverse sensing part 42 with two ends respectively connected to the two vertically sensing parts 41. The two vertically sensing parts 41 and a transverse sensing part 42 enclose the concave cavity 43. The sensing protrusion 221 partially extends into the concave cavity 43 to reduce the vertical dimension of the volume adjustment knob and make the internal structure of the volume adjustment knob more compact.

[0047] As a preferred embodiment, an annular accommodation groove 222 is further recessed on the optical scale baffle 22. The annular accommodation groove 222 is arranged close to the sensing protrusion 221. A part of the vertically sensing part 41 on the side close to the annular side plate 231 is inserted into the annular accommodation groove 222, which can further reduce the vertical dimension of the volume adjustment knob and make the internal structure of the volume adjustment knob more compact.

[0048] Damping grease can be placed inside the bearing 30 of this embodiment to obtain the corresponding feel. The damping feel can be adjusted. Since the size of the bearing 30 can be customized according to actual requirements, the volume adjustment knob has better high and low temperature resistance and longer service life, and can better meet the market's requirements for appearance and high quality.

[0049] The embodiment of the present invention also provides an installation method for a volume adjustment knob as described above. The method includes the following steps:

[0050] S101. Assemble the outer knob assembly 20 and the bearing 30: Place the optical scale baffle 22 from the bottom of the knob 23 inside the knob 23 and abut it against the first annular baffle 232. Then place the bearing 30 inside the knob 23 so that the optical scale baffle 22 is clamped between the outer ring 32 of the bearing 30 and the first annular baffle 232. Finally, fix the bearing pressing plate 21 at the bottom of the knob 23. The bearing pressing plate 21 presses against the outer ring 32 of the bearing 30 to fix the outer ring 32 of the bearing 30 between the optical scale baffle 22 and the bearing pressing plate 21;

[0051] S102. Assemble the partition 52 and the lower cover 10: Set the bearing 30 with the outer knob assembly 20 sleeved outside the boss 12, and then fix the partition 52 on the boss 12. At this time, the inner ring 31 of the bearing 30 is fixed between the partition 52 and the annular convex plate 13.

[0052] S103. Assemble the upper cover 51 and the optical sensor 40: Install the optical sensor 40 at the bottom of the upper cover 51 and set it corresponding to the sensing protrusion 221, and then fix the upper cover 51 on the boss 12.

[0053] As a preferred embodiment, the method further includes:

[0054] S104. Assemble the outer cover 53: Snap the outer cover 53 on the side of the upper cover 51 away from the partition 52 to make the appearance of the volume adjustment knob look better.

[0055] In summary, in the present invention, the outer knob assembly 20 and the cover plate group 50 are rotationally connected by a bearing 30 to realize the knob 23 type volume adjustment. The outer diameter of the volume adjustment knob can be set according to needs, effectively solving the shaking problem. The hand feeling and the number of uses of consumers can both achieve a qualitative leap, providing a new design method for the volume adjustment knobs of future high-end speaker products, and can meet the appearance effects of different products, which is more beautiful than using a knob 23 cap on a potentiometer and has a better hand feeling, and is well recognized by the market and customers.

[0056] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A volume adjustment knob, characterized in that: It includes a lower cover, an outer knob assembly, a bearing, an optical sensor, and a cover plate group. The outer knob assembly includes a bearing pressing plate, an optical scale baffle, and a knob. The bearing pressing plate, the optical scale baffle, and the knob are all annular. The optical scale baffle is provided with a plurality of spaced induction protrusions along its circumferential direction. The bearing has an inner ring and an outer ring rotatably connected to the inner ring. The cover plate group is fixedly connected to the lower cover and encloses a horizontally arranged first clamping groove with the lower cover. The inner ring of the bearing is fixed in the first clamping groove. The bearing pressing plate, the optical scale baffle, and the knob are all sleeved outside the cover plate group at intervals and are all arranged at intervals with the lower cover. The bearing pressing plate and the optical scale baffle are both installed on the knob, and the bearing pressing plate, the optical scale baffle, and the knob enclose a second clamping groove opposite to the first clamping groove. The outer ring of the bearing is installed in the second clamping groove. The optical sensor is installed on the cover plate group and the optical sensor is arranged corresponding to one of the induction protrusions of the optical scale baffle.

2. The volume adjustment knob according to claim 1, wherein: One side of the lower cover facing the cover plate group has a receiving cavity, a convex platform and an annular convex plate protruding in the receiving cavity. The annular convex plate and the convex platform are coaxially arranged, and the outer diameter of the annular convex plate is greater than the outer diameter of the convex platform. The cover plate group is fixedly connected to the convex platform. The annular convex plate, the convex platform and the cover plate group enclose the first clamping groove. The bearing pressing plate is located in the receiving cavity.

3. The volume adjustment knob according to claim 2, wherein: The cover plate group includes an upper cover and a partition plate arranged between the upper cover and the lower cover. The outer diameter of the partition plate is smaller than the outer diameter of the upper cover. The upper cover and the partition plate are both fixed on the convex platform. The optical sensor is installed on one side of the upper cover facing the lower cover. The annular convex plate, the convex platform and the partition plate enclose the first clamping groove.

4. The volume adjustment knob according to claim 3, wherein: The partition plate is horizontally concavely provided with a notch, and the optical sensor is located in the notch.

5. The volume adjustment knob according to claim 3, wherein: The cover plate group further includes an outer cover, and the outer cover is buckled on one side of the upper cover away from the partition plate.

6. The volume adjustment knob according to claim 3, characterized in that: The knob includes an annular side plate and a first annular baffle protruding from the inner side wall of the annular side plate. The bearing pressing plate is installed on the annular side plate. The optical scale baffle is installed on one side of the first annular baffle facing the bearing pressing plate, and the optical scale baffle, the annular side plate and the bearing pressing plate enclose the second clamping groove.

7. The volume adjustment knob according to claim 6, wherein: One side of the annular side plate close to the bottom wall of the receiving cavity is concavely provided with an annular groove. The bearing pressing plate includes an annular fixing plate installed in the annular groove and a second annular baffle protruding from the inner side wall of the annular fixing plate. The optical scale baffle, the annular side plate and the second annular baffle enclose the second clamping groove.

8. The volume adjustment knob according to claim 1, wherein: The optical sensor has a through concave cavity, and the induction protrusion partially extends into the concave cavity.

9. An installation method for the volume adjustment knob as described in claim 7, characterized in that: The method includes the following steps: Assemble the outer knob assembly and the bearing: Place the optical scale baffle from the bottom of the knob inside the knob and against the first annular baffle, then place the bearing inside the knob so that the optical scale baffle is clamped between the outer ring of the bearing and the first annular baffle. Finally, fix the bearing pressing plate to the bottom of the knob so that the outer ring of the bearing is fixed between the optical scale baffle and the bearing pressing plate; Assemble the partition plate and the lower cover: Sleeve the bearing with the outer knob assembly on the boss, and fix the partition plate to the boss so that the inner ring of the bearing is fixed between the partition plate and the annular convex plate; Assemble the upper cover and the optical sensor: Install the optical sensor at the bottom of the upper cover and set it corresponding to the induction projection, and then fix the upper cover to the boss.

10. The installation method of the volume adjustment knob according to claim 9, characterized in that: The method further includes: Assemble the outer cover: Snap the outer cover to the side of the upper cover away from the partition plate.

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