A double adhesive quick solidification sensor shell and an image sensor using the same

Abstract

The utility model discloses a kind of double glue quick solidification sensor shell and image sensor applying it, glass is adhered with glue on the top of shell, the top of shell has first glue platform and second glue platform, first glue platform around the top of shell four quarters, second glue platform is strip and on the short side of first glue platform inside, silicone glue is applied on first glue platform, ultraviolet light curing adhesive is applied on second glue platform, the adhesion of glass and shell is realized by the joint application of silicone glue and ultraviolet light curing adhesive.The utility model breaks through from product structure itself, simultaneously applies a small amount of ultraviolet light curing adhesive that can be quickly solidified and cheap silicone glue, first, the quick solidification of glass and shell is realized using two second glue platform ultraviolet light curing adhesive, ensure that subsequent can prevent glass from deviating without the aid of jig, wait for the silicone glue around slowly solidifies to reach the effect of dustproof sealing, the design of this structure realizes cost reduction and efficiency increase.

Description

Technical Field

[0001] This utility model relates to the field of sensor equipment technology, and more specifically to a double-adhesive fast-curing sensor housing and an image sensor using the same. Background Technology

[0002] Existing image sensors (i.e., contact image sensor scanners, or CIS for short) often employ a housing structure where glass floats on a plastic housing, such as... Figure 1 As shown in the diagram, the markings indicate: plastic housing 101, light source 102, cylindrical lens 103, circuit board 104, sensor 105, top glass 106, and dispensing platform 107. Because this type of structure lacks a limiting mechanism on the plastic housing, the glass may move after assembly onto the housing. Therefore, an auxiliary fixture is needed to first limit the movement of the housing and glass before fixing them in place. To prevent dust from entering the product and affecting its functionality, adhesive is typically used to seal the glass on the housing. There are generally two types of existing adhesives.

[0003] The first type is UV adhesive (also known as photosensitive adhesive or ultraviolet curing adhesive). Its advantage is that the adhesive can be cured quickly after being irradiated by a UV lamp, which shortens the operation time and improves work efficiency. Its disadvantage is that UV adhesive is expensive.

[0004] The second type is silicone glue. Its advantage is that the glue is inexpensive, about 1 / 20th the price of UV glue. Its disadvantage is that the glue takes more than two hours to fully cure, which not only increases the number of fixtures required for peeling and assembly, but also increases the product operation time cycle and reduces work efficiency.

[0005] UV adhesives are favored by businesses for their rapid curing properties, but their high cost adds an extra burden. Silicone adhesives, while inexpensive, have a slower curing time, increasing processing time. Cost reduction and efficiency improvement have always been challenges for businesses, so combining the advantages of both types of adhesives is the key to improvement. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a dual-adhesive fast-setting sensor housing and an image sensor using it. By seeking breakthroughs in the product structure itself, it achieves rapid fixation of glass onto the housing while reducing costs.

[0007] According to one aspect of this utility model, a dual-adhesive rapid-curing sensor housing is provided. The top of the housing is used for mounting glass. The housing has a cuboid structure and a first adhesive platform and a second adhesive platform on the top. The first adhesive platform surrounds the top of the housing, and the second adhesive platform is elongated. The first adhesive platform is used to apply silicone adhesive, and the second adhesive platform is used to apply UV-curable adhesive. The glass and the housing are bonded together through the silicone adhesive and UV-curable adhesive. The adhesive is applied using a glue-applying machine. The elongated shape of the second adhesive platform facilitates glue application. After the adhesive is applied, the glass is covered, and a UV lamp is used to irradiate the second adhesive platform, causing the UV-curable adhesive on the platform to cure rapidly. Once the UV-curable adhesive has cured, there is no need for fixtures to prevent the glass from shifting. The silicone adhesive on the first adhesive platform slowly cures, achieving a dustproof effect. This structure ensures both dustproof sealing and rapid fixation, significantly reducing costs.

[0008] In some embodiments, the second adhesive platform is located inside the first adhesive platform, and an overflow groove is provided between the second adhesive platform and the first adhesive platform. Thus, the second adhesive platform being inside does not affect the first adhesive platform forming a surrounding structure on the outside, ensuring that the dustproof and sealing effect remains unchanged, and the overflow groove prevents the two adhesives from interfering with each other.

[0009] In some embodiments, two second adhesive platforms are provided, and the two second adhesive platforms are respectively located on two short sides of the housing. Thus, the housing has a cuboid structure, and placing the second adhesive platforms on its two short sides provides a better positioning function compared to placing them on its two long sides.

[0010] In some embodiments, the overflow groove has a length of 14 mm, a width of 0.5 mm, and a depth of 0.5 mm.

[0011] According to another aspect of this invention, an image sensor is provided that utilizes the aforementioned dual-adhesive quick-setting sensor housing. Thus, this improved housing structure, while ensuring dustproof sealing on all sides, achieves rapid fixation of the glass to the housing in a low-cost manner, greatly improving work efficiency.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The sensor housing with dual-adhesive rapid curing provided by this utility model can be applied to image sensors of various specifications. Since it is impossible to find a low-cost and fast-curing adhesive, this application makes a breakthrough from the product structure itself, using a small amount of fast-curing UV-curing adhesive and inexpensive silicone adhesive simultaneously. First, the UV-curing adhesive on the two second adhesive platforms is used to achieve rapid curing of the glass and the housing, ensuring that the glass can be prevented from shifting without the aid of fixtures. After the silicone adhesive around the perimeter slowly cures, a dustproof and sealing effect is achieved. This structural design reduces costs and increases the fixing efficiency of the glass and the housing. Compared with using silicone adhesive alone, it also reduces the number of auxiliary fixing fixtures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an image sensor in the prior art; Figure 2 This is a schematic diagram of the image sensor without glass mounting of this utility model, which uses the double-adhesive fast-curing sensor housing proposed in this application; Figure 3 yes Figure 2 Top view after adhesive application; Figure 4 This is a schematic diagram of the image sensor structure, with the glass already installed. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments.

[0015] like Figures 2 to 4 As shown, this utility model discloses a double-adhesive fast-curing sensor housing according to one embodiment. This double-adhesive fast-curing sensor housing can be applied to various specifications of image sensors. The image sensor housing 1 houses a light source 3 and a cylindrical lens 4. A circuit board is mounted at the bottom, and a sensor on the circuit board transmits signals. The top of the housing 1 is used to mount glass 2. The circuit board and sensor are connected to... Figure 1 The structure is similar, but it is not shown here.

[0016] The housing 1 has a rectangular parallelepiped shape. The top of the housing 1 has a first adhesive platform 11 and a second adhesive platform 12. The first adhesive platform 11 surrounds the top surface of the housing 1, forming a four-sided structure, and is used to apply silicone adhesive. The second adhesive platform 12 is elongated and located inside the first adhesive platform 11. An overflow groove 13 is provided between the second adhesive platform 12 and the first adhesive platform 11. There are two second adhesive platforms 12, each located on one of the two short sides of the housing 1, with corresponding overflow grooves 13 also located on the short sides of the housing 1. The second adhesive platform 12 is used to apply ultraviolet (UV) curable adhesive. The glass 2 is bonded to the housing 1 using both silicone adhesive and UV curable adhesive. The overflow grooves 13 on the second adhesive platform 12 and the first adhesive platform 11 prevent the two adhesives from interfering with each other. In this embodiment, the dimensions of the overflow groove 13 are as follows: length 14 mm, width 0.5 mm, and depth 0.5 mm.

[0017] The adhesive is applied using a glue-applying machine. The second glue platform 12 is elongated for easy glue application. After the glue is applied, the glass 2 is covered, and a UV lamp is used to irradiate the second glue platform 12, causing the UV-curable adhesive on the platform to cure rapidly. Once the UV-curable adhesive has cured, there is no need for fixtures to prevent the glass 2 from shifting. The silicone adhesive on the first glue platform 11 then slowly cures, achieving a dustproof effect. In this structure, the second glue platform 12 is located on the inside, without affecting the first glue platform 11 forming a surrounding structure on the outside, ensuring that the dustproof sealing effect remains unchanged. For the rectangular shell 1, placing the second glue platform 12 on its two shorter sides provides better positioning than placing it on its two longer sides.

[0018] The specific steps for applying the above-mentioned dual-adhesive fast-curing sensor housing to the image sensor mounting glass 2 are as follows: S1: During assembly, first load the required UV adhesive and silicone adhesive onto the XY-table glue application machine.

[0019] S2: Place the CIS product on the base of the XY-table glue-stretching machine; S3: Select the corresponding signal for the glue application program (which will be pre-programmed in the machine). First, apply UV glue to the first glue platform 11, and then apply silicone glue to the second glue platform 12. S4: Remove the product from the machine and place it on the special glass assembly fixture 2; S5: Take out the corresponding glass 2, wipe it and visually inspect it. If it passes the inspection, cover it onto the product. S6: Use a UV machine to cure the UV adhesive on the product; S7: After the UV adhesive has cured, the product can be removed from the fixture and placed in the tray to cure the silicone adhesive naturally. S8: After the silicone adhesive has cured, transfer it to the next workstation.

[0020] This invention provides a dual-adhesive rapid-curing sensor housing, which breaks through the limitations of the product structure itself by simultaneously applying a small amount of rapidly curing UV-curable adhesive and inexpensive silicone adhesive. First, UV-curable adhesive on two second adhesive platforms 12 is used to rapidly cure the glass 2 and the housing 1, ensuring that the glass 2 can be prevented from shifting without the need for fixtures. Then, the silicone adhesive around the edges slowly cures, achieving a dustproof and sealing effect. This structure eliminates the need for numerous fixtures required when using silicone adhesive alone, and significantly reduces the amount of UV adhesive used, truly achieving cost reduction and efficiency improvement.

[0021] The above descriptions are merely some embodiments of this utility model. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A sensor housing with double adhesive quick-curing, wherein the top of the housing (1) is used for mounting glass (2), and the housing (1) has a cuboid structure, characterized in that, The top of the housing (1) has a first adhesive platform (11) and a second adhesive platform (12). The first adhesive platform (11) is around the top of the housing (1), and the second adhesive platform (12) is long. The first adhesive platform (11) is used to apply silicone adhesive, and the second adhesive platform (12) is used to apply UV curing adhesive. The glass (2) and the housing (1) are bonded together by silicone adhesive and UV curing adhesive.

2. The sensor housing with dual-adhesive rapid curing according to claim 1, characterized in that, The second glue platform (12) is located inside the first glue platform (11), and an overflow groove is provided between the second glue platform (12) and the first glue platform (11).

3. The sensor housing with dual-adhesive rapid curing according to claim 2, characterized in that, The second glue platform (12) has two sections, and the two sections of the second glue platform (12) are respectively located on the two short sides of the housing (1).

4. The sensor housing with dual-adhesive rapid curing according to claim 2, characterized in that, The overflow groove is 14 mm long, 0.5 mm wide, and 0.5 mm deep.

5. An image sensor employing a dual-adhesive fast-curing sensor housing as described in any one of claims 1 to 4.

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