COB paster clamp

Abstract

The utility model provides a COB paster clamp, which comprises a pressing plate and a plurality of pressing claw assemblies, each pressing claw assembly comprises an elastic sheet, a pressing block and a first fastener, the pressing plate is provided with a structure groove penetrating through the pressing plate, one end of the elastic sheet is detachably and fixedly connected with the pressing plate, the other end of the elastic sheet extends towards the direction of the structure groove, and the pressing block is fixedly connected with the structure groove. The pressing blocks are detachably and fixedly arranged at the other ends of the elastic pieces through the first fasteners, the pressing blocks are located in the structural grooves, and the elastic pieces are sequentially arranged around the edges of the structural grooves. According to the utility model, the COB chip mounting accuracy of the 400G optical module can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of COB chip mounting, and particularly relates to a COB chip mounting fixture. Background Art

[0002] The COB (chip on board) process technology is a process technology that directly mounts chips on a PCBA using glue and then performs coupling and encapsulation. In recent years, in the field of optical communication data products, the COB packaging solution has gradually become the mainstream solution. Compared with the traditional coaxial process technology, the COB process technology directly bonds the optical chip onto the PCBA, eliminating the TO packaging process in the coaxial packaging process. Therefore, it has the advantages of a more compact packaging structure, a simpler operation process, and higher efficiency.

[0003] Currently, during the COB chip mounting process of 400G optical modules, due to the lack of a supporting chip mounting fixture, there will be problems such as large differences in chip mounting dimensions and low accuracy.

[0004] Therefore, there is an urgent need to develop a COB chip mounting fixture to improve the accuracy of COB chip mounting for 400G optical modules. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a COB chip mounting fixture to solve the problem of poor accuracy of the existing COB chip mounting fixture.

[0006] To solve the above technical problems, the utility model provides a COB chip mounting fixture, which includes a pressing plate and a plurality of pressing claw components. The pressing claw component includes a spring piece, a pressing block, and a first fastener. The pressing plate is provided with a structure groove penetrating through the pressing plate. One end of the spring piece is detachably and fixedly connected to the pressing plate, and the other end of the spring piece extends towards the direction of the structure groove. The pressing block is detachably and fixedly arranged at the other end of the spring piece through the first fastener, and the pressing block is located in the structure groove. The plurality of spring pieces are sequentially arranged around the edge of the structure groove.

[0007] Optionally, the pressing block includes a pressing block body and an anti-static coating, and the anti-static coating is coated on the pressing block body.

[0008] Optionally, the pressing block is L-shaped, including a first plate body and a second plate body. The first plate body is perpendicularly arranged at the edge of the second plate body. The first plate body is connected to the other end of the spring piece through the first fastener, and the second plate body is perpendicular to the spring piece.

[0009] Optionally, the second plate body has a pressing surface, and the distance between the pressing surface and the first plate body is greater than the length of the part of the first fastener protruding from the first plate body.

[0010] Optionally, the structural groove is rectangular, and a plurality of the pressing claw assemblies are symmetrically installed on both sides of the structural groove.

[0011] Optionally, the first fastener includes a screw and a nut. A first through hole is formed in the elastic sheet, and a second through hole is formed in the pressing block. The screw passes through the first through hole and the second through hole and is threadedly connected to the nut.

[0012] Optionally, the nut is an elastic sheet nut.

[0013] Optionally, the number of the first through holes and the second through holes is two, the number of the screws is two, the number of the elastic sheet nuts is one, and the number of the threaded holes on the elastic sheet nut is two.

[0014] Optionally, a plurality of limiting grooves are formed in the pressing plate. One end of the elastic sheet is located in the limiting groove, and one end of the elastic sheet is matched with the limiting groove.

[0015] Optionally, the wall surface of the limiting groove close to the structural groove is communicated with the structural groove.

[0016] A COB chip mounting fixture provided by the present utility model has the following beneficial effects:

[0017] Since the pressing plate is provided with a structural groove penetrating through the pressing plate, one end of the elastic sheet is detachably and fixedly connected to the pressing plate, the other end of the elastic sheet extends towards the direction of the structural groove, a plurality of the elastic sheets are sequentially arranged around the edge of the structural groove, and the pressing block is detachably and fixedly arranged at the other end of the elastic sheet through the first fastener, and the pressing block is located in the structural groove. Therefore, after the COB chip mounting fixture is fixed on the chip mounter, the device can be pressed by the pressing block. Since the pressing block and the pressing plate are connected by the elastic sheet, the force acting on the device can be ensured to be relatively uniform, so that the flatness of the device installation can be ensured, thereby improving the accuracy of COB chip mounting; since the elastic sheet and the pressing block are separately arranged, when the pressing block is worn, it is not necessary to replace the entire pressing claw assembly, and only the pressing block needs to be replaced, so that the cost can be saved. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a COB chip mounting fixture from one perspective in an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a partial enlarged schematic diagram of the COB chip mounting fixture in

[0020] Figure 3 is a schematic structural diagram of the COB chip mounting fixture from another perspective in an embodiment of the present utility model;

[0021] Figure 4 Yes Figure 3 It is a partially enlarged schematic diagram of the COB chip mounting fixture in

[0022] Explanation of the reference numerals in the drawings:

[0023] 100 - pressure plate; 110 - structure groove; 120 - limit groove; 130 - adjustment groove; 140 - mounting hole;

[0024] 200 - pressure jaw assembly;

[0025] 210 - elastic piece; 220 - pressure block; 221 - first plate body; 222 - second plate body; 231 - nut. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0030] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Figure 1 FIG. Figure 1 is a schematic structural view of a perspective of a COB chip mounting fixture in an embodiment of the present utility model, Figure 2 is Figure 1 a partially enlarged schematic view of the COB chip mounting fixture in Figure 3 FIG. Figure 3 is a schematic structural view of another perspective of the COB chip mounting fixture in an embodiment of the present utility model, Figure 4 is Figure 3 a partially enlarged schematic view of the COB chip mounting fixture in. The present embodiment provides a COB chip mounting fixture, including a pressing plate 100 and a plurality of pressing claw assemblies 200. The pressing claw assembly 200 includes a spring piece 210, a pressing block 220, and a first fastener. The pressing plate 100 is provided with a structural groove 110 penetrating through the pressing plate 100. One end of the spring piece 210 is detachably and fixedly connected to the pressing plate 100, and the other end of the spring piece 210 extends towards the direction of the structural groove 110. The pressing block 220 is detachably and fixedly arranged at the other end of the spring piece 210 through the first fastener, and the pressing block 220 is located in the structural groove 110. The plurality of spring pieces 210 are sequentially arranged around the edge of the structural groove 110.

[0033] Since the pressing plate 100 is provided with a structural groove 110 penetrating through the pressing plate 100, one end of the elastic piece 210 is detachably and fixedly connected to the pressing plate 100, the other end of the elastic piece 210 extends towards the direction of the structural groove 110, a plurality of the elastic pieces 210 are sequentially arranged around the edge of the structural groove 110, and the pressing block 220 is detachably and fixedly arranged at the other end of the elastic piece 210 through the first fastener, and the pressing block 220 is located within the structural groove 110. Therefore, after the COB chip mounting fixture is fixed on the chip mounter, the device can be pressed tightly by the pressing block 220. Since the pressing block 220 and the pressing plate 100 are connected by the elastic piece 210, the force acting on the device can be ensured to be relatively uniform, so that the flatness of the device installation can be ensured, thereby improving the accuracy of COB chip mounting; since the elastic piece 210 and the pressing block 220 are separately arranged, when the pressing block 220 is worn, it is not necessary to replace the entire clamping jaw assembly 200, and only the pressing block 220 needs to be replaced, so that the cost can be saved.

[0034] Preferably, the pressing block 220 includes a pressing block 220 body and an anti-static coating, and the anti-static coating is coated on the pressing block 220 body. In this way, when the pressing block 220 contacts the device, the flatness of chip mounting can be ensured while preventing static electricity generated by friction.

[0035] In this embodiment, the pressing block 220 is in an L shape and includes a first plate body 221 and a second plate body 222. The first plate body 221 is arranged perpendicular to the edge of the second plate body 222. The first plate body 221 is connected to the other end of the elastic piece 210 through the first fastener, and the second plate body 222 is perpendicular to the elastic piece 210.

[0036] Preferably, the second plate body 222 has a pressing surface, and the distance between the pressing surface and the first plate body 221 is greater than the length of the part of the first fastener protruding from the first plate body 221. In this way, interference of the first fastener with the pressing block 220 pressing the device can be avoided.

[0037] The structural groove 110 is rectangular, and a plurality of the clamping jaw assemblies 200 are symmetrically installed on both sides of the structural groove 110.

[0038] Preferably, the first fastener includes a screw and a nut 231. The elastic piece 210 is provided with a first through hole, the pressing block 220 is provided with a second through hole, and the screw passes through the first through hole and the second through hole and is threadedly connected to the nut 231.

[0039] Preferably, the nut 231 is a spring nut 231 for the elastic piece 210.

[0040] Preferably, the number of the first through holes and the second through holes is two, the number of the screws is two, the number of the spring washer nuts 231 is one, and the number of the threaded holes on the spring washer nuts 231 is two. In this way, the connection stability between the spring washer 210 and the pressing block 220 can be further improved.

[0041] In this embodiment, one end of the spring washer 210 is fixedly connected to the pressing plate 100 through a second fastener.

[0042] Preferably, a plurality of limiting grooves 120 are formed in the pressing plate 100. One end of the spring washer 210 is located in the limiting grooves 120 and is matched with the limiting grooves 120. In this way, the limiting and installation of the spring washer 210 can be facilitated.

[0043] The wall surface of the limiting groove 120 close to the structure groove 110 is communicated with the structure groove 110.

[0044] Preferably, a third through hole is formed in one end of the spring washer 210, a fourth through hole is formed in the bottom of the limiting groove 120, and the second fastener passes through the third through hole and the fourth through hole.

[0045] Preferably, an adjusting groove 130 and a mounting hole 140 penetrating through the pressing plate 100 are formed in the pressing plate 100, and the mounting hole 140 is located on the extension line of the length direction of the adjusting groove 130. In this way, it is convenient to mount the pressing plate 100 on the mounter.

[0046] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the field of the present invention according to the above disclosure shall fall within the protection scope of the claims.

Claims

1. A COB patch fixture, comprising a pressing plate, characterized in that: It also includes multiple pressure claw assemblies, which include a spring sheet, a pressure block and a first fastener. The pressure plate is provided with a structural groove that runs through the pressure plate. One end of the spring sheet is detachably fixedly connected to the pressure plate, and the other end of the spring sheet extends in the direction of the structural groove. The pressure block is detachably fixedly arranged on the other end of the spring sheet through the first fastener, and the pressure block is located in the structural groove. Multiple spring sheets are arranged in sequence around the edge of the structural groove.

2. The COB patch fixture according to claim 1, characterized in that: The pressing block comprises a pressing block body and an antistatic coating, wherein the antistatic coating is coated on the pressing block body.

3. The COB patch fixture according to claim 1, characterized in that: The pressing block is L-shaped and includes a first plate body and a second plate body. The first plate body is arranged perpendicular to the edge of the second plate body. The first plate body is connected to the other end of the spring sheet through a first fastener, and the second plate body is perpendicular to the spring sheet.

4. The COB patch fixture as claimed in claim 3, characterized in that: The second plate body has a pressing surface, and the distance between the pressing surface and the first plate body is greater than the length of the portion of the first fastener protruding from the first plate body.

5. The COB patch fixture according to claim 1, characterized in that: The structural groove is rectangular, and a plurality of the pressing claw assemblies are symmetrically installed on both sides of the structural groove.

6. The COB patch fixture according to claim 1, characterized in that: The first fastener includes a screw and a nut. The spring sheet is provided with a first through hole, the pressing block is provided with a second through hole, and the screw passes through the first through hole and the second through hole and is threadedly connected to the nut.

7. The COB patch fixture according to claim 6, characterized in that: The nut is a spring nut.

8. The COB patch fixture according to claim 7, characterized in that: The number of the first through holes and the second through holes is two, the number of the screws is two, the number of the spring nut is one, and the number of threaded holes on the spring nut is two.

9. The COB patch fixture according to claim 1, characterized in that: The pressing plate is provided with a plurality of limiting grooves, one end of the spring sheet is located in the limiting groove, and one end of the spring sheet is matched with the limiting groove.

10. The COB patch fixture according to claim 9, characterized in that: The wall surface of the limiting groove close to the structural groove is communicated with the structural groove.

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