Jig plate

Abstract

The utility model relates to the technical field of PCB (printed circuit board) protection processing tools, in particular to a jig plate which is used for covering a PCB to perform protective paint spraying, the PCB is provided with a spraying area, a transition area and a coating forbidding area, the transition area is positioned between the spraying area and the coating forbidding area, and the jig plate comprises a mounting groove, an opening unit, a shielding unit and a protruding unit. The mounting groove is formed in one surface of the jig plate and is used for being combined with a PCB (Printed Circuit Board); the opening unit is arranged in the mounting groove and used for exposing the spraying area. The shielding unit is arranged in the mounting groove and used for shielding the coating forbidding area and the transition area. The protruding unit is arranged on the shielding unit and provided with a resisting part used for being attached to and abutting against the transition area of the PCB so as to shield the coating forbidding area, and the distance between the attaching position of the protruding unit and the PCB and the spraying area is not smaller than 1.5 mm. When the PCB is sprayed, the shielding unit and the protruding unit can effectively shield the sprayed glue extending from the spraying area to the transition area, and the capillary action is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board protection treatment tools, and particularly relates to a jig board. Background Art

[0002] Three-proof coating means coating a protective layer on the surface of a PCB board, which is the most commonly used post-welding surface coating method at present. The spraying method is the most commonly used coating method in the industry. In the spraying method coating, the air flow of compressed air flows through the nozzle hole of the spray gun to form a negative pressure. The negative pressure sucks the three-proof glue from the straw and sprays it out through the nozzle to form a glue mist. The glue mist is sprayed onto the PCB board and forms a protection after curing.

[0003] When performing three-proof coating on a PCB board currently, due to manual operation, the prohibited coating areas around the spraying area on the jig board often have no transition area or the distance between the transition area and the prohibited coating area is too small, resulting in the prohibited coating area being contaminated or infiltrated by the glue sprayed out during the spraying of the PCB board due to capillary action, causing product defects. Summary of the Invention

[0004] The purpose of the utility model is to provide a jig board.

[0005] To solve the above technical problems, the utility model provides a jig board for covering a PCB board to perform protective paint spraying. The PCB board has at least one spraying area, at least one transition area and at least one prohibited coating area. The transition area is located between the spraying area and the prohibited coating area. The jig board includes an installation groove, at least one opening unit, at least one shielding unit and at least one protruding unit. The installation groove is arranged on one side of the jig board for combining with the PCB board. The opening unit is arranged in the installation groove for exposing the spraying area. The shielding unit is arranged in the installation groove for shielding the prohibited coating area and the transition area. The protruding unit is arranged on the shielding unit and has a resisting part for fitting and abutting against the transition area of the PCB board to shield the prohibited coating area. The distance between the position where the protruding unit fits with the PCB board and the spraying area is not less than 1.5 mm.

[0006] Particularly, the protruding unit is recessed in the shielding unit.

[0007] Particularly, at least one electronic component is arranged on the PCB board, and an avoidance part is also correspondingly arranged in the protruding unit for accommodating the electronic component.

[0008] Particularly, the jig board has a plurality of resisting parts and a plurality of fixing pins. The resisting parts are located outside the diagonal corners of the installation groove, and the fixing pins are located inside the diagonal corners of the installation groove where the resisting parts are not arranged.

[0009] In particular, a plurality of handle holes are also provided on the jig plate.

[0010] In particular, the jig plate is made of aluminum alloy.

[0011] Compared with the prior art, for the jig plate of the present utility model, the PCB board is installed on the installation groove of the jig plate, and the spraying area of the PCB board is sprayed from the other side of the jig plate through the opening unit, and the masking unit is used to mask the prohibited coating area and the transition area, and the resisting part of the protrusion unit fits against the transition area of the PCB board, so as to effectively prevent the sprayed glue from contaminating the prohibited coating area of the PCB board, and further avoid the capillary action of the glue, resulting in product defects. Description of the Drawings

[0012] Other features and effects of the present utility model will be clearly presented in the embodiments with reference to the drawings, wherein:

[0013] Figure 1 is a schematic structural diagram of the jig plate of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the jig plate of the present utility model from another angle;

[0015] Figure 3 is Figure 1 a partial enlarged schematic diagram of the jig plate described in ; and

[0016] Figure 4 is to illustrate Figure 2 a partial cross-sectional schematic diagram of spraying the PCB board through the jig plate described in. Detailed Embodiments

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Before the present utility model is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

[0018] Please refer to Figures 1-4。As a preferred embodiment of the present utility model, a jig plate 100 is disclosed, which is used to cover the PCB board 200 for spraying protective paint. The PCB board 200 has at least one spraying area A, at least one transition area B, and at least one prohibited coating area C. The transition area B is located between the spraying area A and the prohibited coating area C. The jig plate 100 according to an embodiment of the present utility model includes a mounting groove 110, at least one opening unit 120, at least one shielding unit 130, and at least one protruding unit 140. The mounting groove 110 is provided on one side of the jig plate 100 for bonding with the PCB board 200. The opening unit 120 is disposed in the mounting groove 110 for exposing the spraying area A. The shielding unit 130 is disposed in the mounting groove 110 for shielding the prohibited coating area C and the transition area B. The protruding unit 140 is disposed on the shielding unit 130 and has a resisting portion 141 for fitting and abutting against the transition area B of the PCB board 200 to shield the prohibited coating area C. The distance between the position where the protruding unit 140 is in contact with the PCB board 200 and the spraying area A is not less than 1.5 mm. Specifically, when the PCB board 200 is mounted on the jig plate 100 and the PCB board 200 is to be sprayed, the spraying area A is sprayed through the opening unit 120, the shielding unit 130 shields the prohibited coating area C and the transition area B, and the protruding unit 140 shields the glue D sprayed from the spraying area A extending to the transition area B. Through the above operations, when the jig plate 100 is covered on the PCB board 200 and then the PCB board 200 is sprayed, it can effectively prevent the sprayed glue D from contaminating the prohibited coating area C of the PCB board 200, thereby avoiding the capillary action of the glue D and causing product defects, but not limited thereto.

[0019] Among them, in order to describe in detail the cooperation mode between the jig plate 100 of the present utility model and the PCB board 200, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . It should be noted that Figure 1 is a schematic structural diagram of the jig plate 100 at an angle according to an embodiment of the present utility model. Figure 2 is a schematic structural diagram of the jig plate 100 at another angle according to an embodiment of the present utility model. Figure 3 is to Figure 1 a partial enlarged schematic diagram of the jig plate 100 in Figure 4 is to illustrate Figure 2 a partial cross-sectional schematic diagram of spraying the PCB board 200 through the jig plate 100 in Figure 1 . Briefly, the jig plate 100 has two sides. One side of the jig plate 100 is used for bonding with the PCB board 200, and reference can be made to Figure 2。In an embodiment of the present utility model, the jig plate 100 is provided with a plurality of blocking members 101 and a plurality of fixing pins 102. The blocking members 101 are located outside the diagonal corners of the mounting groove 110, and the fixing pins 102 are located inside the diagonal corners of the mounting groove 110 where no blocking member 101 is provided. Specifically, when the PCB board 200 is to be installed in the mounting groove 110 of the jig plate 100, in order to make the installation of the PCB board 200 and the jig plate 100 more firm and prevent the PCB board 200 from falling off or becoming loose from the mounting groove 110 when spraying the PCB board 200 through the other side of the jig plate 100, which may lead to spraying mistakes or incorrect spraying, resulting in defective products and wasting a lot of manpower and material resources. Therefore, it is necessary to rely on the setting method of the blocking members 101 and the fixing pins 102 to facilitate the firm installation of the PCB board 200 on the mounting groove 110 without falling off or the like, but not limited thereto. Of course, the shape of the blocking member 101 is not particularly limited. For example, it can be L-shaped, arc-shaped, etc., as long as it can prevent the PCB board 200 from falling off the mounting groove 110 when turning over the jig plate 100 or spraying the PCB board 200 from the other side of the jig plate 100, but not limited thereto. By the way, the shape of the fixing pin 102 is also not particularly limited. For example, it can be circular, square, etc., as long as it can fix the PCB board 200 on the mounting groove 110, but not limited thereto. In addition, in some other embodiments of the present utility model, according to different jig plates 100 or different PCB boards 200, the setting positions of the blocking members 101 or the fixing pins 102 can also be appropriately changed according to the actual situation or usage requirements to meet different production needs, which will not be specifically described here.

[0020] Next, in an embodiment of the present utility model, please refer to Figure 1 , the mounting groove 110 is provided on one side of the jig plate 100 and is used to be combined with the PCB board 200. The mounting groove 110 includes an opening unit 120, a shielding unit 130, and a protrusion unit 140. The PCB board 200 includes a spraying area A, a transition area B, and a non-spraying area C. Among them, the opening unit 120 is used to expose the spraying area A. The opening unit 120 is provided in a hollow manner. That is to say, whether it is from the side of the jig plate 100 with the mounting groove 110 or the other side of the jig plate 100 without the mounting groove 110, the hollow opening unit 120 can be seen. Please refer to Figure 4, when the PCB board 200 is installed on the installation groove 110, the spraying area A of the PCB board 200 can be placed corresponding to the spraying area A of the installation groove 110, which is convenient for the other side of the jig board 100 to spray the spraying area A of the PCB board 200 through the opening unit 120. The shielding unit 130 is used to shield the prohibited coating area C and the transition area B, preventing the prohibited coating area C from being contaminated when spraying the spraying area A of the PCB board 200, and effectively preventing the contamination of the prohibited coating area C when spraying the PCB board 200 through the transition area B. By the way, the shape or installation position of the installation groove 110 and the shielding unit 130 cannot be seen from the other side of the jig board 100. Of course, the other side of the jig board 100 is only for the convenience of spraying the PCB board 200. The protrusion unit 140 is arranged on the shielding unit 130, and the protrusion unit 140 has a resisting portion 141 for fitting and abutting against the transition area B of the PCB board 200. When spraying the spraying area A of the PCB board 200, it can effectively resist the glue D extending from the spraying area A to the transition area B due to capillary action, preventing the glue D from contaminating the prohibited coating area C. It should be noted that the distance between the position where the protrusion unit 140 contacts the PCB board 200 and the spraying area A is not less than 1.5 mm. By means of the above setting method of the distance, the distance of the glue D extending from the spraying area A to the transition area B due to capillary action is greatly reduced, and further, the protrusion unit 140 effectively resists the contamination of the glue D generated when spraying the PCB board 200 into the prohibited coating area C, but this is not limited thereto.

[0021] Next, in an embodiment of the present invention, the protrusion unit 140 is recessed in the shielding unit 130. Taking Figure 2 and Figure 4 as examples for illustration, from the other side of the jig board 100 (the side of the jig board 100 without the installation groove 110), the protrusion unit 140 is located below the shielding unit 130. More specifically, the outer edge of the contact between the opening unit 120 and the shielding unit 130 is recessed inward along the outer edge of the shielding unit 130 to form the protrusion unit 140. Taking Figure 1 and Figure 3 as examples for illustration, from one side of the jig board 100 (the side of the jig board 100 with the installation groove 110), the outer edge of the contact between the protrusion unit 140 and the opening unit 120 extends 1.5 mm along the outer edge of the protrusion unit 140. Since Figure 1 and Figure 2It is to view one side of the jig board 100 and the other side of the jig board 100 from two different perspectives respectively. Therefore, it is not very different which figure is taken as an example for specific description, but it is not limited thereto. Of course, the number of the protrusion units 140 is not particularly limited and only depends on the actual situation. In addition, the number of the protrusion units 140 located under the same shielding unit 130 is not particularly limited, but it is not limited thereto.

[0022] Next, in an embodiment of the present invention, at least one electronic component 201 is provided on the PCB board 200, and an avoidance portion 131 is also correspondingly provided in the protrusion unit 140 for the electronic component 201 to accommodate. Briefly speaking, the protrusion unit 140 is hollow inside and provided with the avoidance portion 131 for the electronic component 201 to accommodate, so as to facilitate shielding the electronic component 201 located in the prohibited coating area C on the PCB board 200. Of course, the shape of the avoidance portion 131 is not particularly limited. For example, it can be circular, square, etc., as long as the avoidance portion 131 is provided in the protrusion unit 140 corresponding to the electronic component 201, but it is not limited thereto. In addition, in some other embodiments of the present invention, according to different jig boards 100 or different PCB boards 200, the setting position or the setting number of the avoidance portion 131 can be appropriately changed according to the actual situation or the use requirement, so as to meet different production requirements, and no special description is made here.

[0023] Next, in an embodiment of the present invention, a plurality of handle holes 103 are further installed on the jig board 100, and reference can be made to Figure 1 and Figure 2 . For the convenience of taking the PCB board 200 from the installation groove 110 into consideration, handle holes 103 can be provided on the jig board 100, and the handle holes 103 are in contact with the installation groove 110, so that the user can easily place the PCB board 200 on the installation groove 110 or take it out through the handle holes 103, but it is not limited thereto. Of course, the shape of the handle holes 103 is not particularly limited. For example, it can be circular, square, etc., as long as the user can easily take the PCB board 200 through the handle holes 103, but it is not limited thereto. In addition, in some other embodiments of the present invention, according to different jig boards 100 or different PCB boards 200, the setting position of the handle holes 103 can also be appropriately changed according to the actual situation or the use requirement, so as to meet different production requirements, and no special description is made here.

[0024] Next, in an embodiment of the present invention, the jig board 100 is made of aluminum alloy. Of course, it does not mean that the material of the jig board 100 is limited to aluminum alloy, but it means that the jig board 100 involved in this application is made of aluminum alloy. Or rather, in some other embodiments of the present invention, the required material of the jig board 100 can also be changed according to the actual situation or the use requirement, so as to meet different use requirements, and no special description is made here.

[0025] In addition, in some other embodiments of the present utility model, in addition to spraying one side of the PCB board 200 using the jig plate 100, it is also possible to spray both sides of the PCB board 200. Of course, double-sided spraying is a supplement based on single-sided spraying. Two different jig plates 100 can be selected, and the PCB board 200 is placed between the two jig plates 100. The PCB board 200 is fixed between the two jig plates 100 through the blocking member 101 and the fixing pin 102. The spraying area A is exposed through the opening unit 120, the masking unit 130 masks the non-spraying area C and the transition area B, and the blocking portion 141 of the protruding unit 140 fits against the transition area B of the PCB board 200. And it should be noted that the distance between the position where the protruding unit 140 fits with the PCB board 200 and the spraying area A is not less than 1.5 mm. Thus, when spraying both sides of the spraying area A of the PCB board 200, it is prevented that the glue D in the spraying area A contaminates the non-spraying area C due to capillary action, resulting in defective products, but not limited thereto.

[0026] Of course, in some other embodiments of the present utility model, regarding how to quickly find the required jig plate 100 for a variety of different jig plates 100, a jig nameplate covering the relevant information of this jig plate 100 can also be installed on the jig plate 100, so as to facilitate viewing the relevant information of different jig plates 100 and the PCB boards 200 adapted to the aforementioned jig plates 100, but not limited thereto.

[0027] In addition, in some other embodiments of the present utility model, depending on the actual size and usage requirements of the PCB board 200, for example, the spraying area A, the transition area B, the non-spraying area C, etc. at different positions are set to produce a suitable jig plate 100, so that the PCB board 200 is installed on the installation groove 110 of the jig plate 100, and then the spraying work can be carried out on the PCB board 200, preventing the sprayed glue D from contaminating the non-spraying area C due to capillary action, resulting in capillary action and affecting the product quality. Of course, the number of the spraying area A, the transition area B, and the non-spraying area C of the PCB board 200 is not limited, and similarly, the number of the opening unit 120, the masking unit 130, and the protruding unit 140 on the jig plate 100 is not limited, depending on the actual production requirements.

[0028] In summary, the PCB board 200 is installed on the installation groove 110 of the jig board 100. The spraying area A of the PCB board 200 is sprayed from the other side of the jig board 100 through the opening unit 120, and the masking unit 130 is used to mask the prohibited coating area C and the transition area B. The resisting portion 141 of the protruding unit 140 fits against the transition area B of the PCB board 200, thus effectively preventing the sprayed glue D from contaminating the prohibited coating area C of the PCB board 200, and further avoiding the capillary action of the glue D, resulting in defective products. Therefore, the usability of the jig board 100 is further improved. Furthermore, other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A jig plate, used to cover a PCB board for spraying protective paint, the PCB board having at least one spraying area, at least one transition area and at least one prohibited painting area, the transition area is located between the spraying area and the prohibited painting area, characterized in that: include: A mounting groove, provided on one side of the fixture plate, for combining with the PCB board; At least one opening unit is disposed in the mounting groove to expose the spraying area; At least one shielding unit is disposed in the installation groove to shield the prohibited painting area and the transition area; At least one protrusion unit is arranged on the shielding unit and has a stopper for fitting against the transition area of ​​the PCB board to shield the prohibited painting area. The distance between the position where the protrusion unit fits the PCB board and the spraying area is not less than 1.5 mm.

2. The jig plate according to claim 1, characterized in that: The protrusion unit is concavely disposed on the shielding unit.

3. The jig plate according to claim 1, characterized in that: At least one electronic component is arranged on the PCB board, and a avoiding portion is arranged in the protrusion unit corresponding to the electronic component for accommodating the electronic component.

4. The jig plate according to claim 1, characterized in that: The jig plate has a plurality of retaining members and a plurality of fixing pins, wherein the retaining members are located on the outside of the diagonally opposite corners of the installation slot, and the fixing pins are located on the inside of the diagonally opposite corners of the installation slot where the retaining members are not provided.

5. The jig plate according to claim 1, characterized in that: The fixture plate is also provided with a plurality of handle holes.

6. The jig plate according to claim 1, characterized in that: The fixture plate is made of aluminum alloy.

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