Curved surface nixie tube

Abstract

The utility model relates to the field of nixie tubes, in particular to a curved-surface nixie tube which is characterized in that the curved-surface nixie tube comprises a lower shell and an upper shell with the top surface being a curved surface, the upper shell covers the lower shell, a PCB is installed in the lower shell, lamp beads and bonding pads used for being connected with the lamp beads are arranged on the PCB, compensation blocks are arranged on part of the bonding pads, and the compensation blocks are connected with the lower shell. The lamp beads are installed on the bonding pads or the compensation blocks, the compensation blocks are used for supporting the lamp beads, and the upper shell is provided with light outlet channels corresponding to the lamp beads. The LED lamp has the beneficial effects that the LED lamp has the advantages of being uniform in light emitting brightness and low in production cost.

Description

Technical Field

[0001] The present application relates to the technical field of digital tubes, and in particular to a curved digital tube. Background Art

[0002] A digital tube, also known as a glow tube, is an electronic device that can display numbers and other information. The glass tube includes an anode made of a metal wire mesh and multiple cathodes. The shapes of most cathodes of the digital tube are numbers. The tube is filled with a low-pressure gas, usually mostly neon plus some mercury and / or argon. When a certain cathode is charged, the digital tube will emit colored light, depending on the gas in the tube, generally orange or green. Some digital tubes can be applied to electrical appliances as a display screen for showing the working state of the electrical appliances. However, the surfaces of some electrical appliances are curved or circular, and the digital tube also needs to be correspondingly set as curved, that is, a curved digital tube.

[0003] Most current curved digital tubes directly adopt a housing with a curved front surface, while the PCB board is flat. The light emitted by the lamp beads on the PCB board is emitted from the front surface of the housing, resulting in the distance between the lamp beads and the middle position of the housing being farther than that of the two side positions. This makes the light limit emitted from the middle position weaker, resulting in uneven brightness of the curved digital tube. To solve the above problems, some workers will use a flexible PCB board to make the distance from the lamp beads at different positions to the housing surface the same. However, due to the high manufacturing cost of the flexible PCB board and the different sizes of the curved digital tubes required for different batches of electrical appliances, using a flexible PCB board will result in a high cost of the curved digital tube. Summary of the Utility Model

[0004] The purpose of the present application is to provide a curved digital tube, which has the advantages of uniform light emission brightness and low production cost.

[0005] To achieve the above purpose, the technical solution adopted by the present utility model is: a curved digital tube, including a lower housing and an upper housing with a curved top surface. The upper housing covers the upper part of the lower housing. A PCB board is installed in the lower housing. The PCB board is provided with lamp beads and pads for connecting the lamp beads. Some of the pads are provided with compensation blocks. The lamp beads are installed on the pads or the compensation blocks. The compensation blocks are used to support the lamp beads. The upper housing is provided with light-emitting channels corresponding to the lamp beads.

[0006] By adopting the above technical solution, when assembling, the assembler places a compensation block at the pad corresponding to the middle position of the upper housing, and the lamp bead is then installed on the compensation block, while the lamp beads at the two side positions are directly installed on the pads, making the lamp beads at the middle position closer to the upper housing. Therefore, the lamp beads at different positions are supported by different numbers of compensation blocks, so that the light emission brightness of the curved digital tube is more uniform, and the overall structure is simple and the production cost is low.

[0007] Preferably, two first connection parts are fixedly arranged at the bottom of the compensation block. The first connection parts are specifically arranged in a strip shape. The two first connection parts are parallel to each other. The first connection parts are used to contact the pads. A second connection part is fixedly arranged at the top of the compensation block. The second connection part is specifically arranged in a square shape. The second connection part is located between the two first connection parts.

[0008] By adopting the above scheme, the first connection parts can support the compensation block, which is more convenient to determine the height of the compensation block after being soldered to the pad with tin. At the same time, the second connection part is used to support the lamp bead, and it is also convenient to determine the height of the lamp bead after being soldered to the compensation block with tin. And because the second connection part is located between the two first connection parts, the welding is more stable when two compensation blocks are stacked.

[0009] Preferably, the width of the second connection part is equal to the distance between the two first connection parts.

[0010] By adopting the above technical scheme, when two compensation blocks need to be stacked, the second connection part can be inserted between the first connection parts, and both sides of the second connection part are abutted against the first connection parts, further making the two compensation blocks more stable after being stacked and making the welding more convenient.

[0011] Preferably, a copper plating layer is arranged on the surface of the compensation block, or the compensation block, the first connection part and the second connection part are integrally formed by using copper material.

[0012] By adopting the above scheme, by arranging a copper plating layer or making the compensation block of copper material, the compensation block can conduct electricity while having a lower cost.

[0013] In summary, the beneficial technical effects of the present application are as follows:

[0014] Lamp beads at different positions are supported by different numbers of compensation blocks, so that the distances between lamp beads at different positions and the upper shell are similar, thereby making the light emission brightness of the curved surface digital tube more uniform, and the overall structure is simple and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an internal schematic diagram of the curved surface digital tube in the present application.

[0016] Figure 2 is a structural schematic diagram of the lamp bead and the compensation block in the present application.

[0017] Figure 3 is a side schematic diagram of the compensation block in this embodiment.

[0018] Figure 4 is a side schematic diagram of two compensation blocks stacked in this embodiment.

[0019] Description of reference numerals:

[0020] 1. Lower shell; 2. Upper shell; 3. PCB board; 4. Lamp beads; 5. Solder pads; 6. Compensation block; 7. First connecting part; 8. Second connecting part. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0022] The present application discloses a curved digital tube, such as Figure 1 and Figure 2 As shown, it includes a lower shell 1 and an upper shell 2 with a curved top surface, the upper shell 2 covers the top of the lower shell 1, a PCB board 3 is installed in the lower shell 1, lamp beads 4 and solder pads 5 for connecting the lamp beads 4 are arranged on the PCB board 3, compensation blocks 6 are arranged on some of the solder pads 5, the lamp beads 4 are installed on the solder pads 5 or the compensation blocks 6, the compensation blocks 6 are used to support the lamp beads 4, and the upper shell 2 is provided with a light output channel corresponding to the lamp beads 4. When assembling, the assembler places the compensation block 6 at the solder pad 5 corresponding to the middle position of the upper shell 2, and the lamp beads 4 are then installed on the compensation block 6, while the lamp beads 4 at the two side positions are directly installed on the solder pad 5, so that the lamp beads 4 at the middle position are closer to the upper shell 2, so the lamp beads 4 at different positions are supported by different numbers of compensation blocks 6, so that the light output brightness of the curved digital tube is more uniform, and the overall structure is simple and the production cost is low.

[0023] Specifically, Figure 3 and Figure 4As shown in the figure, two first connecting parts 7 are fixedly arranged at the bottom of the compensation block 6. The first connecting parts 7 are specifically arranged in a strip shape. The two first connecting parts 7 are parallel to each other. The length of the first connecting part 7 is less than the width of the compensation block 6. The first connecting part 7 is used to contact the pad 5. A second connecting part 8 is fixedly arranged at the top of the compensation block 6. The second connecting part 8 is specifically arranged in a square shape. The second connecting part 8 is located between the two first connecting parts 7. The width of the second connecting part 8 is equal to the distance between the two first connecting parts 7. The first connecting part 7 can support the compensation block 6. During welding, the compensation block 6 can be first placed on the pad 5, and then molten tin is added from the side between the compensation block 6 and the pad 5, so as to weld the compensation block 6 and the pad 5. It is more convenient to determine the height of the compensation block 6 after the compensation block 6 and the pad 5 are welded together by tin. At the same time, the second connecting part 8 is used to support the lamp bead 4, and it is also convenient to determine the height of the lamp bead 4 after the compensation block 6 and the lamp bead 4 are welded together by tin. And because the second connecting part 8 is located between the two first connecting parts 7, the welding is more stable when two compensation blocks 6 are superimposed. Also, because the width of the second connecting part 8 is equal to the distance between the two first connecting parts 7, when two compensation blocks 6 are superimposed, the second connecting part 8 can be inserted between the first connecting parts 7, and both sides of the second connecting part 8 are abutted against the first connecting parts 7, further making the two compensation blocks 6 more stable after being superimposed and making the welding more convenient.

[0024] In this embodiment, a copper plating layer is provided on the surface of the compensation block 6, or the compensation block 6, the first connecting part 7 and the second connecting part 8 are integrally formed by using copper material or other conductive materials. By providing a copper plating layer or making the compensation block 6 of copper material, the compensation block 6 can conduct electricity while having a lower cost.

[0025] The implementation principle of this embodiment is as follows:

[0026] By using different numbers of compensation blocks 6 to support the lamp beads 4 at different positions, the distances between the lamp beads 4 at different positions and the upper shell 2 are made close. For example, after placing two compensation blocks 6 on the pad 5 at the middle position and then welding the lamp bead 4, after placing one compensation block 6 on the pads 5 on both sides of the middle position and then welding the lamp bead 4, and directly welding the lamp beads 4 on the pads 5 at the outermost sides, so as to make the light emission brightness of the curved surface digital tube more uniform.

[0027] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0028] In this article, specific examples are used to elaborate on the principle and implementation mode of the present utility model. The description of the above examples is only used to help understand the method and its core idea of the present utility model; the above is only the preferred implementation mode of the present utility model. It should be noted that due to the limited nature of written expression and objectively there are infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements, retouches or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. A curved digital tube, characterized in that: It includes a lower shell (1) and an upper shell (2) with a curved top surface. The upper shell (2) covers the upper part of the lower shell (1). A PCB board (3) is installed in the lower shell (1). A lamp bead (4) and pads (5) for connecting the lamp bead (4) are arranged on the PCB board (3). Compensation blocks (6) are arranged on some of the pads (5). The lamp bead (4) is installed on the pad (5) or the compensation block (6). The compensation block (6) is used to support the lamp bead (4). The upper shell (2) is provided with a light-emitting channel corresponding to the lamp bead (4).

2. The surface digital tube according to claim 1, wherein: Two first connecting parts (7) are fixedly arranged at the bottom of the compensation block (6). The first connecting part (7) is specifically arranged in a long strip shape. The two first connecting parts (7) are parallel to each other. The first connecting part (7) is used to contact the pad (5). A second connecting part (8) is fixedly arranged at the top of the compensation block (6). The second connecting part (8) is specifically arranged in a square shape. The second connecting part (8) is located between the two first connecting parts (7).

3. The surface digital tube according to claim 2, wherein: The width of the second connecting part (8) is equal to the distance between the two first connecting parts (7).

4. A curved digital tube according to claim 2, characterized in that: A copper plating layer is arranged on the surface of the compensation block (6), or the compensation block (6), the first connecting part (7) and the second connecting part (8) are integrally formed by copper material.

Images