Digital display device and charging bin

Abstract

The utility model discloses a digital display device and a charging cabin, comprising a plurality of LEDs arranged and distributed on a PCB; the support is detachably arranged on the PCB, and a plurality of light holes aligned with the LEDs one by one are formed in the support from bottom to top in a penetrating mode; the light scattering sheet is arranged on the upper end face of the support in a covering mode and can refract light emitted by the LED upwards; and the lens is arranged above the astigmatism sheet and is used for focusing and displaying the light refracted by the astigmatism sheet. According to the utility model, the bracket can be arranged on the PCB, so that the air exhaust process is omitted, the disassembly and assembly are convenient, and convenience is brought to operators. Moreover, even if the PCB breaks down, the support can be detached and matched with other PCBs, and similarly, if the light scattering sheet is damaged, the light scattering sheet can be replaced, so that resource waste is avoided, maintenance is facilitated, and production management is facilitated.

Description

Technical Field:

[0001] The utility model relates to the technical field of LED digital display, in particular to a digital display device and a charging bin. Background Art:

[0002] A digital tube is an electronic display device, usually used to display digital characters. It consists of multiple small digital display units, and the display units can display numbers from 0 to 9, or other identification symbols.

[0003] Due to its characteristics of low energy consumption and simple structure, digital tubes are widely used in various fields, such as automatic meter reading commonly seen in daily life like electricity meters, water meters, gas meters, as well as traffic signal lights and medical devices. In addition, in industrial automation, digital tubes are used to display device status, sensor data, etc.

[0004] However, most of the current digital tubes on the market generally need to be inserted into the PCB board through the pins of the digital tube and then welded, or fixed by potting. For example, the Chinese utility model patent application with the patent publication number CN221058538U discloses an anti-static LED digital tube, which includes: a housing, a PCB board is installed on the upper part of two groups of the support plates, and a negative pressure cavity is arranged inside the PCB board. An epoxy resin glue layer is arranged between the inner bottom surface of the housing and the lower part of the PCB board, and a plurality of installation windows are opened on the end surface of the annular resin glue layer. A wooden column penetrates through each of the plurality of installation windows. Four conductive columns and a plurality of pins are welded to the lower part of the PCB board, and a plurality of LED chips are welded to the upper part of the PCB board. One end of the four conductive columns and the plurality of pins penetrates through the inner bottom surface of the housing, and a display panel is installed through the upper part of the housing. It adopts a negative pressure cavity, and through the set negative pressure cavity, the LED chips can be automatically adsorbed on the circuit board.

[0005] However, this existing anti-static LED digital tube has the following deficiencies:

[0006] 1. In this technical solution, the gas inside the negative pressure cavity is pumped out by an external air pump to form a negative pressure cavity, so as to adsorb this group of LED chips on the upper surface of the PCB board, and then solder work is carried out on it. Such a method adds a process of pumping air by an external air pump, the operation is relatively cumbersome, has a certain operation difficulty, and brings inconvenience to the operators.

[0007] 2. After the LED chips in this technical solution are welded to the upper surface of the PCB board, the LED chips together with the display panel are not detachable. When one of the display panel and the PCB board fails, since they are welded together, it is not convenient to repair the fault. Often, the other one will also be difficult to use normally, and the display panel should be set to be detachable and replaceable.

[0008] In view of this, the present inventor proposes the following technical solutions. Content of the utility model:

[0009] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a digital display device and a charging bin.

[0010] To solve the above technical problems, the present utility model adopts the following technical solutions: A digital display device and a charging bin, comprising: a PCB board, on which a plurality of LEDs are arranged and distributed; a bracket, which is detachably arranged on the PCB board, and the bracket is provided with a plurality of light-transmitting holes penetrating from bottom to top and aligned with the LEDs one by one; a diffuser, which is covered on the upper end face of the bracket; and a lens, which is arranged above the diffuser.

[0011] Furthermore, in the above technical solution, a first fastening hole and a second fastening hole are formed on the PCB board, and a first fastening portion and a second fastening portion are respectively arranged on both sides of the bracket and extend downward for snap connection with the first fastening hole and the second fastening hole.

[0012] Furthermore, in the above technical solution, a first hook portion for preventing the first fastening portion from disengaging from the first fastening hole is formed in a protruding manner on the first fastening portion; a second hook portion for preventing the second fastening portion from disengaging from the second fastening hole is formed in a protruding manner on the second fastening portion.

[0013] Furthermore, in the above technical solution, at least two positioning holes for positioning and connecting the bracket are further formed on the PCB board. Correspondingly, at least two positioning posts are formed in a protruding manner downward on the bracket and aligned with the positioning holes and inserted into the positioning holes.

[0014] Furthermore, in the above technical solution, a sinking groove for accommodating the diffuser is formed on the upper end face of the bracket.

[0015] Furthermore, in the above technical solution, the diffuser has at least one display unit.

[0016] The charging bin includes the digital display device in the above solution, and further includes a lower cover body, an upper cover body connected to the lower cover body in a swingable opening and closing manner, and a placement layer installed on the lower cover body and covering above the PCB board. A window is formed in the placement layer above the diffuser, and the lens is installed in the window.

[0017] Furthermore, in the above technical solution, a receiving groove for accommodating the lens is formed in the window; a plurality of first clamping portions are formed on the side wall of the lower cover body. Correspondingly, a second clamping portion for matching and clamping with the first clamping portion is formed in a protruding manner downward on the placement layer.

[0018] Furthermore, in the above technical solution, a first magnetic sheet is provided at the opening of the upper cover body. Correspondingly, a second magnet is provided inside the lower cover body for attracting the first magnetic sheet to stably cover the upper cover body on the lower cover body.

[0019] Furthermore, in the above technical solution, at least two charging connectors distributed vertically upward are provided on the PCB board, and a placement groove for placing the earphones is formed on the placement layer. At least two through holes for the charging connectors to pass through and expose outward are opened in the placement groove.

[0020] Furthermore, in the above technical solution, an installation position is also formed inside the lower cover body, and a power supply for supplying power to the charging connectors is provided on the installation position.

[0021] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art: In the present utility model, the LED emits light to the diffuser through the light-transmitting holes on the bracket, and the diffuser further refracts the light onto the lens to display information. The bracket can be quickly installed on the PCB board, eliminating the process of air extraction, being convenient for disassembly and assembly, and bringing convenience to the operator. Moreover, even if the PCB board fails, the bracket can be disassembled and matched with other PCB boards. Similarly, if the diffuser is damaged, it can also be replaced. This not only avoids waste of resources but also facilitates maintenance and is beneficial to production management. BRIEF DESCRIPTION OF THE DRAWINGS:

[0022] Figure 1 is an exploded state schematic diagram of the digital display device in the present utility model;

[0023] Figure 2 is a schematic structural diagram of the digital display device in the present utility model;

[0024] Figure 3 is a schematic structural diagram of the present utility model;

[0025] Figure 4 is an exploded state schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS:

[0026] The present utility model will be further described below with reference to specific embodiments and the accompanying drawings.

[0027] See Figure 1 and Figure 2As shown, a digital display device and a charging compartment are provided, which include: a PCB board 4, on which a plurality of LEDs 10 are arranged and distributed; a bracket 6, which is detachably arranged on the PCB board 4, and the bracket 6 is penetrated from bottom to top and has a plurality of light-transmitting holes 61 aligned one by one with the LEDs 10; a diffuser 7, which is covered on the upper end surface of the bracket 6; and a lens 8, which is arranged above the diffuser 7. The lens 8 can also prevent foreign matter from entering the interior of the device, so as to avoid damage to the diffuser 7 caused by foreign matter, or blockage and incomplete information display.

[0028] In the present invention, LED 10 emits light to diffuser 7 through light-transmitting hole 61 on bracket 6, and diffuser 7 further refracts the light on lens 8 to display information, and bracket 6 can be quickly installed on PCB board 4, eliminating the process of exhausting air, and is easy to disassemble and assemble, which brings convenience to operators. Moreover, even if the PCB board fails, bracket 6 can be disassembled and matched with other PCB boards 4. Similarly, if diffuser 7 is damaged, it can also be replaced, which not only avoids waste of resources, but also facilitates maintenance and is conducive to production management.

[0029] Since the present invention aims to realize the detachable and replaceable bracket 6, specifically, the PCB board 4 is provided with a first buckle hole 401 and a second buckle hole 402, and the bracket 6 is provided with a first buckle portion 601 and a second buckle portion 602 extending downward and used for buckle connection with the first buckle hole 401 and the second buckle hole 402 on both sides. Furthermore, the first buckle portion 601 is protrudingly formed with a first hook portion 610 for preventing the bracket from slipping out of the first buckle hole 401; the second buckle portion 602 is protrudingly formed with a second hook portion 620 for preventing the bracket from slipping out of the second buckle hole 402. When installing, the bracket 6 can be fixed by manually pressing the first hook 610 and the second hook 620 to be respectively inserted into the first buckle 601 and the second buckle 602; when removing, the first buckle 601 and the second buckle 602 can be simultaneously pressed manually to separate the first hook 610 and the second hook 620 from the first buckle 601 and the second buckle 602. Alternatively, the bracket 6 can be fixedly connected to the PCB by screwing.

[0030] The PCB board 4 is also provided with at least two positioning holes 403 for positioning and connecting the bracket 6 . Correspondingly, the bracket 6 is formed with at least two positioning posts 603 protruding downwards and aligned with the positioning holes 403 and inserted into the positioning holes 403 .

[0031] The upper end surface of the bracket 6 is provided with a sinking groove 604 for accommodating the diffuser 7. In this embodiment, preferably, the depth of the sinking groove 604 is consistent with the thickness of the diffuser 7.

[0032] The astigmatic lens 7 has at least one display unit 701. See Figure 1 As shown, in this embodiment, preferably, there are four display units 701. Among them, one display unit 701 is composed of two shallow grooves and can display the number 1. Two display units 701 are composed of seven shallow grooves and can display numbers from 1 to 9. There is also one display unit 701 for displaying a charging logo and a percentage logo. This is because the maximum value of the power display is usually 100. Setting the first display unit 701 with two shallow grooves (displaying the number 1) can save space. Of course, three or more display units 701 with seven shallow grooves can also be set according to actual needs to achieve the display of larger numbers or other information.

[0033] See Figure 3 and Figure 4 As shown, the charging bin includes the digital display device in the above solution, and also includes a lower cover body 1 capable of accommodating the digital display device, an upper cover body 2 connected to the lower cover body 1 in a swingable opening and closing manner, and a placement layer 3 installed on the lower cover body 1 and covering above the PCB board 4.

[0034] A plurality of first clamping portions 11 are formed on the side wall of the lower cover body 1. Correspondingly, the placement layer 3 is formed with second clamping portions 12 protruding downward for mating and clamping with the first clamping portions 11.

[0035] The upper cover body 2 is provided with a first magnetic sheet 21 at the opening. Correspondingly, a second magnet 22 is arranged inside the lower cover body 1 for attracting the first magnetic sheet 21 to stably cover the upper cover body 2 on the lower cover body 1.

[0036] The placement layer 3 is provided with a window 31 above the astigmatic lens 7. A receiving groove 32 for receiving the lens 8 is formed in the window 31. At least two charging connectors 41 are vertically distributed upward on the PCB board 4. The placement layer 3 is also formed with a placement groove 33 for placing the earphone. At least two through holes 34 for the charging connectors 41 to pass through and expose outward are formed in the placement groove 33. Among them, the charging connectors 41 pass through the through holes 34 and extend into the placement groove 33.

[0037] An installation position 13 is also formed inside the lower cover body 1. A power supply 5 for supplying power to the charging connectors 41 is arranged on the installation position 13. Among them, the power supply 5 is a rechargeable battery.

[0038] In summary, in the present utility model, the LED 10 emits light to the diffuser 7 through the light-transmitting hole 61 on the bracket 6, and the diffuser 7 further refracts the light onto the lens 8 to display information. The bracket 6 can be quickly installed on the PCB board 4 through the first fastening portion 601 and the second fastening portion 602, eliminating the process of air extraction, being convenient for disassembly and installation, and bringing convenience to the operator. Moreover, even if the PCB board fails, the bracket 6 can still be disassembled and matched with other PCB boards 4. Similarly, if the diffuser 7 is damaged, it can also be replaced. This not only avoids waste of resources but also facilitates maintenance and is beneficial to production management.

[0039] Certainly, the above are only specific embodiments of the present utility model and do not limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model should be included within the scope of the patent application of the present utility model.

Claims

1. A digital display device, characterized in that: include: A PCB board (4), with a plurality of LEDs (10) arranged and distributed on the PCB board (4); A bracket (6) is detachably arranged on the PCB board (4), and the bracket (6) is provided with a plurality of light-transmitting holes (61) which are aligned one by one with the LEDs (10) from bottom to top; A diffuser (7) which covers the upper end surface of the bracket (6); A lens (8) is arranged above the diopter sheet (7).

2. A digital display device according to claim 1, characterized in that: The PCB board (4) is provided with a first buckle hole (401) and a second buckle hole (402), and the bracket (6) is provided with a first buckle portion (601) and a second buckle portion (602) extending downwards and used for buckling connection with the first buckle hole (401) and the second buckle hole (402) on both sides.

3. A digital display device according to claim 2, characterized in that: A first hook (610) is protrudingly formed on the first buckling portion (601) for preventing it from slipping out of the first buckling hole (401); and a second hook (620) is protrudingly formed on the second buckling portion (602) for preventing it from slipping out of the second buckling hole (402).

4. A digital display device according to claim 1, characterized in that: The PCB board (4) is also provided with at least two positioning holes (403) for positioning and connecting the bracket (6), and correspondingly, the bracket (6) is formed with at least two positioning posts (603) protruding downwards and aligned with the positioning holes (403) and inserted into the positioning holes (403).

5. A digital display device according to claim 1, characterized in that: The upper end surface of the bracket (6) is provided with a sinking groove (604) for accommodating a diffuser sheet (7); the diffuser sheet (7) is provided with at least one display unit (701).

6. Charging compartment, characterized in that: It comprises a digital display device as claimed in any one of claims 1 to 5, and further comprises a lower cover body (1) capable of accommodating the digital display device, an upper cover body (2) connected to the lower cover body (1) in a swingable manner, and a placement layer (3) mounted on the lower cover body (1) and covering the top of a PCB board (4), wherein the placement layer (3) is provided with a window (31) above the diffuser (7), and the lens (8) is mounted in the window (31).

7. The charging bin according to claim 6, characterized in that: The window (31) is formed with a receiving groove (32) for receiving the lens (8); the side wall of the lower cover (1) is formed with a plurality of first clamping portions (11), and correspondingly, the placement layer (3) is formed with a second clamping portion (12) protruding downwards for matching and clamping with the first clamping portion (11).

8. The charging bin according to claim 6, characterized in that: The upper cover body (2) is provided with a first magnetic sheet (21) at the opening, and correspondingly, a second magnet (22) is provided in the lower cover body (1) for attracting the first magnetic sheet (21) so that the upper cover body (2) can be stably covered on the lower cover body (1).

9. The charging bin according to claim 6, characterized in that: The PCB board (4) is provided with at least two charging connectors (41) distributed vertically upwards, and the placement layer (3) is also formed with a placement groove (33) for placing earphones, and the placement groove (33) is provided with at least two through holes (34) for the charging connectors (41) to pass through and be exposed to the outside.

10. The charging bin according to any one of claims 7 to 9, characterized in that: A mounting position (13) is also formed in the lower cover body (1), and a power source (5) for supplying power to the charging connector (41) is arranged on the mounting position (13).

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