US-12621943-B2 - Rotary digital display device

US12621943B2US 12621943 B2US12621943 B2US 12621943B2US-12621943-B2

Abstract

Disclosed is a rotary digital display device, including a main body support, a battery, a flexible circuit board, a light guide rod, membranes, and a projection dome cover. The main body support includes a cylindrical surface, and a first end portion and a second end portion. The battery is arranged in the main body support. The flexible circuit board is affixed around the cylindrical surface and provided with lamp positions. The light guide rod is provided with avoidance holes. The membranes are affixed to the light guide rod. The projection dome cover is configured for projecting and displaying preset content or textures on the membranes. The present disclosure achieves display of the preset content or textures. Further, the main body support is rotatably connected to the terminal in a fitted manner, and the projection dome cover drives the main body support to rotate by 360°.

Inventors

Tiaoping Tang
Tao Cheng
Jugen Yang

Assignees

Shenzhen Qishunda Xingye Technology Co., Ltd.

Dates

Publication Date: 20260505
Application Date: 20240927
Priority Date: 20240905

Claims (10)

1 . A rotary digital display device, which can be installed on a terminal, comprising: a main body support, wherein the main body support is hollow and cylindrical, comprising a cylindrical surface, and a first end portion and a second end portion respectively located at both ends of the cylindrical surface; either of the first end portion and the second end portion is rotatably connected with a preset component of the terminal respectively in a fitted manner; a battery, wherein the battery is arranged in the main body support; a flexible circuit board, wherein the flexible circuit board is affixed around the cylindrical surface and is electrically connected to the battery; lamp positions configured for displaying preset content or textures are arranged at preset positions of the flexible circuit board; a light guide rod, wherein the light guide rod is internally hollow, such that the flexible circuit board can be press-fitted on the cylindrical surface; the light guide rod is further provided with avoidance holes corresponding to the lamp positions; membranes, wherein the membranes are affixed to a side of the light guide rod away from the flexible circuit board, and configured for displaying the preset content or textures formed when light emitted from the lamp positions penetrates through the avoidance holes; and a projection dome cover, wherein the projection dome cover is fixed on the main body support and the membranes are spaced apart from each other in a surrounding manner to project and display the preset content or textures on the membranes.
2 . The rotary digital display device according to claim 1 , wherein the light guide rod comprises a first arc-shaped piece and a second arc-shaped piece that are both semi-circular; edges of both sides of the first arc-shaped piece extend outward perpendicularly to form a first connecting piece, and edges both sides of the second arc-shaped piece extend outward perpendicularly to form a second connecting piece; and the first connecting piece is provided with a plurality of snapping columns, and the second connecting piece is provided with snapping holes in one-to-one correspondence with the snapping columns, wherein the snapping columns are configured for snap-in connection with the corresponding snapping holes to collectively form a cylindrical cavity by enclosing the first arc-shaped piece and the second arc-shaped piece, so as to coat and press-fit the flexible circuit board.
3 . The rotary digital display device according to claim 2 , wherein a plurality of isolation pieces are radially arranged on a surface of a side of the light guide rod away from the flexible circuit board, and the isolation pieces are configured for dividing the surface of the light guide rod into a plurality of areas; a plurality of the membranes are arranged and are in affixed connection with a plurality of areas in one-to-one correspondence respectively; and part of the isolation pieces can be reused with the first connecting piece and the second connecting piece.
4 . The rotary digital display device according to claim 2 , wherein the cylindrical surface is provided with a first positioning pin and a second positioning pin arranged in a radial direction; and the flexible circuit board is internally provided with a limiting hole that is in fit with the first positioning pin, semi-circular positioning grooves are formed along edges of both sides of the flexible circuit board in an unfolded state, and the positioning grooves are arranged in pairs around a circumferential side of the second positioning pin.
5 . The rotary digital display device according to claim 4 , wherein the first arc-shaped piece is provided with a first positioning hole that is in fitted connection with the second positioning pin, and the second arc-shaped piece is provided with a second positioning hole that is in fitted connection with the first positioning pin.
6 . The rotary digital display device according to claim 1 , wherein the first end portion is provided with a limiting bracket, and the limiting bracket is configured for limiting an action of the battery extending from the first end portion.
7 . The rotary digital display device according to claim 1 , wherein a circle of first limiting grooves are formed along edges of the first end portion, and a circle of second limiting grooves are formed along edges of the second end portion; and the first limiting grooves and the second limiting grooves are configured for fitted connection with the preset components of the terminal respectively to achieve damped limiting over a rotation angle of the main body support.
8 . The rotary digital display device according to claim 1 , wherein one side of the flexible circuit board close to the first end portion is provided with an annular first electrode conductive contact sheet and an annular data port conductive contact sheet in a circumferential direction; the first electrode conductive contact sheet and the data port conductive contact sheet are spaced apart from each other and electrically connected to one electrode of the battery; one side of the flexible circuit board close to the second end portion is provided with an annular second electrode conductive contact sheet and an annular positive/negative rotation detection conductive contact sheet in a circumferential direction; and the second electrode conductive contact sheet and the positive/negative rotation detection conductive contact sheet are spaced apart from each other and electrically connected to the other electrode of the battery.
9 . The rotary digital display device according to claim 8 , wherein a first terminal is formed at a preset position of the flexible circuit board close to the first end portion in a way of extending axially, the first end portion is provided with a first accommodating groove for the first terminal to extend into, and the first terminal is electrically connected to a positive electrode or a negative electrode of the battery; and a second terminal is formed at a preset position of the flexible circuit board close to the second end portion in a way of extending axially, the second end portion is provided with a second accommodating groove for the second terminal to extend into, and the second terminal is electrically connected to the negative electrode or the positive electrode of the battery.
10 . The rotary digital display device according to claim 8 , wherein the projection dome cover comprises a first half dome cover and a second half dome cover that are snap-fitted; a semi-circular first avoidance groove is formed in a portion of the first half dome cover close to either end of the main body support, and a semi-circular second avoidance groove is formed in a portion of the second half dome cover close to either end of the main body support, wherein either of the first avoidance grooves and the corresponding second avoidance groove are collectively fitted around the cylindrical surface of the main body support, such that the first electrode conductive contact sheet, the data port conductive contact sheet, the second electrode conductive contact sheet, and the positive/negative rotation detection conductive contact sheet are all located outside the projection dome cover.

Description

CROSS REFERENCE TO RELATED APPLICATIONS The present application is a Continuation Application of PCT Application No. PCT/CN2024/120313 filed on Sep. 23, 2024, which claims the benefit of Chinese Patent Application No. 202411243830.7 filed on Sep. 5, 2024. All the above are hereby incorporated by reference in their entirety. TECHNICAL FIELD The present disclosure relates to the technical field of digital tubes, and in particular to a rotary digital display device. BACKGROUND At present, with the development of science and technology, an increasing number of various terminal products such as electronic cigarette products, electronic toys and the like, are provided with display devices like digital tubes to enhance their functionality. However, most digital tubes in the prior art are conventional static display screens, which have limitations in interaction with users, display less content, and bring little fun to users. In view of this, it is necessary to provide a rotary digital display device to overcome the above defects. SUMMARY An objective of the present disclosure is to provide a rotary digital display device, so as to overcome the defects of digital tubes in the prior art including less content display, limitations in interaction with users, and little fun. The device enhances fun, novelty and interactivity of electronic products and fills a current market gap. In order to achieve the above objective, the present invention provides a rotary digital display device, which can be installed on a terminal, including: a main body support, where the main body support is hollow and cylindrical, including a cylindrical surface, and a first end portion and a second end portion respectively located at both ends of the cylindrical surface; either of the first end portion and the second end portion is rotatably connected with a preset component of the terminal respectively in a fitted manner;a battery, where the battery is arranged in the main body support;a flexible circuit board, where the flexible circuit board is affixed around the cylindrical surface and is electrically connected to the battery; lamp positions configured for displaying preset content or textures are arranged at preset positions of the flexible circuit board;a light guide rod, where the light guide rod is internally hollow, such that the flexible circuit board can be press-fitted on the cylindrical surface; the light guide rod is further provided with avoidance holes corresponding to the lamp positions;membranes, where the membranes are affixed to a side of the light guide rod away from the flexible circuit board, and configured for displaying the preset content or textures formed when light emitted from the lamp positions penetrates through the avoidance holes; anda projection dome cover, where the projection dome cover is fixed on the main body support and the membranes are spaced apart from each other in a surrounding manner to project and display the preset content or textures on the membranes. In a preferred embodiment, the light guide rod includes a first arc-shaped piece and a second arc-shaped piece that are both semi-circular; edges of both sides of the first arc-shaped piece extend outward perpendicularly to form a first connecting piece, and edges both sides of the second arc-shaped piece extend outward perpendicularly to form a second connecting piece; and the first connecting piece is provided with a plurality of snapping columns, and the second connecting piece is provided with snapping holes in one-to-one correspondence with the snapping columns, where the snapping columns are configured for snap-in connection with the corresponding snapping holes to collectively form a cylindrical cavity by enclosing the first arc-shaped piece and the second arc-shaped piece, so as to coat and press-fit the flexible circuit board. In a preferred embodiment, a plurality of isolation pieces are radially arranged on a surface of a side of the light guide rod away from the flexible circuit board, and the isolation pieces are configured for dividing the surface of the light guide rod into a plurality of areas; a plurality of the membranes are arranged and are in affixed connection with a plurality of areas in one-to-one correspondence respectively; and part of the isolation pieces can be reused with the first connecting piece and the second connecting piece. In a preferred embodiment, the cylindrical surface is provided with a first positioning pin and a second positioning pin arranged in a radial direction; and the flexible circuit board is internally provided with a limiting hole that is in fit with the first positioning pin, semi-circular positioning grooves are formed along edges of both sides of the flexible circuit board in an unfolded state, and the positioning grooves are arranged in pairs around a circumferential side of the second positioning pin. In a preferred embodiment, the first arc-shaped piece is provided with a first positioning ho