Small PCB paster three-in-one mouse IC assembly

Abstract

The utility model discloses a small PCB (printed circuit board) patch three-in-one mouse IC (integrated circuit) component, which is provided with a small PCB, an IC bottom cover is mounted on the small PCB, a lens component is mounted in the IC bottom cover, and a shading sheet is mounted on the lens component; a lamp wick and a sensing chip are mounted at the bottom of the small PCB; the bottom of the IC bottom cover is provided with a protection structure, and the bottom of the IC bottom cover is also provided with a light transmitting part and a light filtering hole. The lens assembly (3) is provided with an arc-shaped lens part and a convex lens part, a mounting column is fixedly connected between the arc-shaped lens part and the convex lens part, and a protection pad is fixedly connected outside the arc-shaped lens part and the convex lens part; according to the utility model, the IC assembly is integrated on the small-sized PCB, the whole IC assembly can be directly installed on the mouse PCB in a surface mounting manner, a tin soldering process is not needed, the processing steps of feeding and discharging of a clamp and tin soldering are saved, the processing efficiency is greatly improved, the whole IC assembly can be directly installed on the mouse PCB in a surface mounting manner, and the cost is reduced. And a tin furnace is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of mice, in particular to a small-board PCB patch three-in-one mouse IC component. Background Art

[0002] With the development of electronic technology, electronic computers have become an indispensable tool in our life and work. Among them, the mouse, as the main input device of the electronic computer, has a great impact on our operation efficiency. In the earliest days, mechanical mice were used. The principle of mechanical mice is to use a conductive rubber roller and a negative electrode positioning shaft for positioning and moving. However, the accuracy of mechanical mice is too poor, so they have been eliminated. Nowadays, the most common is the optical mouse, whose working principle is to reflect light from a light source body to an optical sensor (sensing chip) for receiving the reflected light. Among them, the optical sensor (sensing chip), the optical lens, and the light source body are essential components of the optical mouse. Generally, these three components are integrated into one in the industry, also known as a three-in-one integrated IC or an IC component.

[0003] In traditional optical mice, the IC component is generally welded to the PCB board through a hardware component, and specific fixtures are required to assist in soldering. The loading and unloading processes are cumbersome, which greatly affects the processing efficiency. In addition, in the traditional IC component, the optical lens is directly exposed outside, and it is easily scalded by heat during the soldering process. The convex surface of the optical imaging is prone to fogging and blurring, resulting in poor IC surface passing effect or even loss of function. Moreover, during daily use, the optical lens is also easily affected by the outside world, resulting in a reduced service life. Content of the Utility Model

[0004] Purpose of the utility model: In order to overcome the deficiencies existing in the prior art, the utility model provides a small-board PCB patch three-in-one mouse IC component.

[0005] Technical solution: To achieve the above purpose, the small-board PCB patch three-in-one mouse IC component of the utility model is provided with a small PCB board, on which an IC bottom cover is installed. A lens component is installed inside the IC bottom cover, and a light-shielding sheet is installed on the lens component.

[0006] A wick and a sensing chip are installed at the bottom of the small PCB board.

[0007] A protective structure is installed at the bottom of the IC bottom cover, and a light-transmitting part and a light-filtering hole are also opened at the bottom of the IC bottom cover.

[0008] The lens component is provided with an arc lens part and a convex lens part. An installation column is fixedly connected between the arc lens part and the convex lens part. A protective pad is fixedly connected outside the arc lens part and the convex lens part, and the protective pad can be embedded into the protective structure.

[0009] Further, the light-shielding sheet includes a barrier sheet and a barrier partition. The barrier partition is fixedly connected to the side of the barrier sheet, and the barrier sheet is provided with a light-transmitting hole and a mounting hole.

[0010] Further, the barrier partition is disposed between the wick and the induction chip.

[0011] Further, the light-transmitting part and the light-filtering hole are disposed within the protective structure.

[0012] Further, the protective structure is a soft rubber pad.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by integrating the IC component on the small PCB, the entire IC component can be directly mounted on the mouse PCB board by means of surface mounting, without going through the soldering process, saving the processing steps of fixture loading and unloading and soldering, and greatly improving the processing efficiency.

[0015] 2. In the present utility model, the entire IC component can be directly mounted on the mouse PCB board by means of surface mounting, without entering the soldering furnace, avoiding the problem of damage to the lens component caused by high temperature, tin leakage, etc., improving the yield rate of production, reducing the production cost, and the setting of the mounting hole and the mounting post fixes the position of the light-shielding sheet, preventing the problem of poor light shielding caused by the movement of the light-shielding sheet.

[0016] 3. In the present utility model, by adding a protective structure to the IC bottom cover and mounting the lens component within the IC bottom cover, the contact between the lens component and the outside is reduced, the service life of the lens component is prolonged, and the protective structure and the protection pad provide double protection to reduce the impact of the outside on the lens component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG Figure 1 is an exploded view of the present utility model;

[0018] FIG Figure 2 is a schematic structural view of the small PCB board of the present utility model;

[0019] FIG Figure 3 is a schematic structural view of the IC bottom cover of the present utility model I;

[0020] FIG Figure 4 is a schematic structural view of the IC bottom cover of the present utility model II;

[0021] FIG Figure 5 is a schematic structural view of the lens component of the present utility model I;

[0022] FIG Figure 6 is a schematic structural view of the lens component of the present utility model II;

[0023] Appendix Figure 7 is one of the schematic diagrams of the light-shielding sheet structure of the present utility model;

[0024] Appendix Figure 8 is the second schematic diagram of the light-shielding sheet structure of the present utility model;

[0025] Appendix Figure 9 is the cross-sectional view of the present utility model; Detailed implementation manners

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

[0027] Embodiment

[0028] As Figures 1 to 9 shown in the small board PCB surface-mounted triple mouse IC component, there is a small PCB board 1. A lamp core 11 and a sensing chip 12 are installed at the bottom of the small PCB board 1. An IC bottom cover 2 is installed on the small PCB board 1. A lens assembly 3 is installed in the IC bottom cover 2. A light-shielding sheet 4 is installed on the lens assembly 3. A protection structure 21 is installed at the bottom of the IC bottom cover 2. A light-transmitting part 22 and a light-filtering hole 23 are also opened at the bottom of the IC bottom cover 2. The light-transmitting part 22 and the light-filtering hole 23 are arranged in the protection structure 21, and the protection structure is a soft rubber pad;

[0029] The lens assembly 3 is provided with an arc lens part 31 and a convex lens part 32. An installation column 33 is fixedly connected between the arc lens part 31 and the convex lens part 32. A protection pad 34 is fixedly connected outside the arc lens part 31 and the convex lens part 32. The protection pad 34 can be embedded in the protection structure 21;

[0030] The light-shielding sheet 4 includes a barrier sheet 41 and a barrier plate 42. The barrier plate 42 is fixedly connected to the side of the barrier sheet 41. A light-transmitting hole 411 and an installation hole 412 are opened on the barrier sheet 41.

[0031] The light-shielding sheet 4 is installed on the installation column 33 through the installation hole 412. The barrier plate 42 is arranged between the lamp core 11 and the sensing chip 12 to separate the two, and also separates the optical path between the arc lens part 31 and the convex lens part 32. The position of the lamp core 11 corresponds to the arc lens part 31 and the light-transmitting part 22, and the position of the sensing chip 12 corresponds to the light-transmitting hole 411, the convex lens part 32 and the light-filtering hole 23;

[0032] The operating principle of this mouse IC component:

[0033] During use, the scattered light emitted by the wick 11 passes through the arc-shaped lens portion 31, penetrates the light-transmitting portion 22 to reach the tabletop, and then is reflected by the tabletop to the light-filtering hole 23 on the IC bottom cover 2 to collect the effective light onto the convex lens portion 32. Then, it forms an image through the convex lens portion 32, passes through the light-transmitting hole 411 on the barrier sheet 41, and reaches the picture transmission induction chip 12, thereby generating different image change principles. The arc-shaped light-receiving surface provided on the arc-shaped lens portion 31 can further expand the light-receiving area. The light-shielding sheet 4 separates the two lights to prevent light interference. The installation holes 412 and the installation posts 33 are provided to fix the position of the light-shielding sheet 4 and prevent the problem of poor light shielding caused by the movement of the light-shielding sheet 4.

[0034] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. Small PCB patch three-in-one mouse IC component, characterized by: A small PCB board (1) is provided, an IC bottom cover (2) is installed on the small PCB board (1), a lens assembly (3) is installed in the IC bottom cover (2), and a light shielding sheet (4) is installed on the lens assembly (3); A lamp wick (11) and a sensor chip (12) are installed at the bottom of the small PCB board (1); A protective structure (21) is installed at the bottom of the IC bottom cover (2), and a light-transmitting portion (22) and a light-filtering hole (23) are also provided at the bottom of the IC bottom cover (2); The lens assembly (3) is provided with an arc-shaped lens portion (31) and a convex lens portion (32); a mounting column (33) is fixedly connected between the arc-shaped lens portion (31) and the convex lens portion (32); and a protection pad (34) is fixedly connected outside the arc-shaped lens portion (31) and the convex lens portion (32).

2. The small board PCB patch three-in-one mouse IC component according to claim 1, characterized in that: The light shielding sheet (4) comprises a blocking sheet (41) and a blocking plate (42); the blocking plate (42) is fixedly connected to the side of the blocking sheet (41); and the blocking sheet (41) is provided with a light-transmitting hole (411) and a mounting hole (412).

3. The small board PCB patch three-in-one mouse IC component according to claim 2, characterized in that: The blocking plate (42) is arranged between the wick (11) and the sensing chip (12).

4. The small board PCB patch three-in-one mouse IC component according to claim 3, characterized in that: The light-transmitting portion (22) and the light-filtering hole (23) are arranged in the protective structure (21).

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