PCB steel mesh compatible with bonding pad structure

Abstract

The utility model discloses a PCB steel mesh compatible with a bonding pad structure, which comprises a base, two sides of the base are provided with screw holes, two sides of the interior of the base are fixedly provided with sliding rails, the outer sides of the sliding rails are sleeved with sliding blocks, one side of each sliding block is fixedly provided with a connecting plate, the inner side of the base is provided with a circuit board, and the inner side of the base is provided with a bonding pad. A steel mesh body is mounted above the base; according to the PCB steel mesh compatible with the bonding pad structure, the steel mesh body and the protective layers are used in cooperation, the protective layers are arranged on the upper side and the lower side of the steel mesh body in the using process of the device, the protective layers are made of polyurethane, and the polyurethane has excellent abrasion resistance, moisture resistance and chemical resistance; the protective layer can effectively prevent the PCB steel plate from being physically and chemically damaged in a severe environment, the protective layer can provide strong protection for the PCB steel plate no matter in a high-humidity environment, a high-salt-mist environment or a severe-chemical-corrosion environment, and the service life of the steel mesh body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field related to PCB circuit board welding, in particular to a PCB steel mesh compatible with a pad structure. Background Art

[0002] PCB circuit board welding is a process of connecting electronic components to PCB. PCB circuit board welding is a complex and delicate process that requires operators to have professional skills and knowledge. Through reasonable welding process and precautions, the welding quality and the reliability of the circuit board can be ensured. In the PCB circuit board manufacturing process, the steel mesh is placed on the PCB circuit board to guide and position the solder paste to ensure that the components can be properly adhered to the PCB circuit board surface. The PCB steel mesh, also known as the PCB printed steel mesh, is an important tool in the PCB circuit board manufacturing process. It is usually woven from metal wire or alloy wire to form a mesh structure that matches the printed pattern of the PCB circuit board.

[0003] In the existing PCB steel mesh, the PCB steel mesh is not protected and is easily corroded by external factors such as moisture, extreme temperature, salt spray, and chemicals, which affects the normal operation and performance of the PCB steel mesh. Therefore, it is necessary to propose a PCB steel mesh compatible with the pad structure. Utility Model Content

[0004] The purpose of the utility model is to provide a PCB steel mesh compatible with a pad structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB steel mesh compatible with a pad structure, comprising a base, screw holes are opened on both sides of the base, slide rails are fixed on both sides of the interior of the base, a slider is sleeved on the outer side of the slide rail, a connecting plate is fixed on one side of the slider, a circuit board is placed on the inner side of the base, a steel mesh body is installed above the base, protective layers are provided on the upper and lower sides of the steel mesh body, first bolts are passed through both sides of the steel mesh body, a protection frame is installed on the outer side of the steel mesh body, a slide groove is opened on the inner side of the protection frame, a fixing plate is installed on one side of the protection frame, and second bolts are passed through both sides of the fixing plate.

[0006] Preferably, the connecting plate forms a sliding structure through a slider and a slide rail, and the slide rail is arranged in an "I"-shaped structure.

[0007] Preferably, one side of the connecting plate is movably connected to a screw rod, and one side of the screw rod is equipped with a handle.

[0008] Preferably, the protective layer is symmetrically arranged with respect to the central axis of the steel mesh body, and the protective layer is made of polyurethane material.

[0009] Preferably, the steel mesh body is threadedly connected to the base via a first bolt, and the first bolt is used in conjunction with the screw hole.

[0010] Preferably, the steel mesh body forms a sliding structure with the protection frame through a slide groove, and the outer shape of the steel mesh body is consistent with the inner shape of the slide groove.

[0011] Preferably, the fixing plate is threadedly connected to the protection frame via a second bolt, and the second bolt is symmetrically arranged with respect to the central axis of the fixing plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A PCB steel mesh compatible with a pad structure, through the coordinated use of a steel mesh body and a protective layer, during the use of the device, the protective layer is arranged on the upper and lower sides of the steel mesh body, and the material of the protective layer is polyurethane, which has excellent wear resistance, moisture resistance and chemical resistance. The protective layer can effectively prevent the PCB steel plate from being physically and chemically damaged in harsh environments. Whether in high humidity, high salt fog or severe chemical corrosion environments, the protective layer can provide strong protection for the PCB steel plate and extend the service life of the steel mesh body;

[0014] 2. The PCB steel mesh compatible with the pad structure is provided with a base, a circuit board, a steel mesh body and a first bolt. During the use of the device, the circuit board is fixed inside the base, and the steel mesh body is fixed to the base by the first bolt, so that the circuit board and the steel mesh body are fixed, and the position between the circuit board and the steel mesh body will not move during the welding process, thereby improving the welding quality;

[0015] 3. A PCB steel mesh compatible with a pad structure, through the arrangement of a steel mesh body, a protective frame, a fixing plate and a second bolt. During the use of the device, the protective frame and the fixing plate are installed on the outside of the steel mesh body by the second bolt. The protective frame can effectively protect the stability and safety of the PCB steel mesh during the manufacturing and use process. The protective frame can prevent the PCB steel mesh from deformation or damage during operation, thereby ensuring the accuracy of the PCB steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the circuit board structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0019] Figure 4This is a schematic diagram of the structure of the steel mesh body of the utility model;

[0020] Figure 5 This is a schematic diagram of the protection frame structure of the utility model.

[0021] In the figure: 1. base; 2. screw hole; 3. slide rail; 4. slider; 5. connecting plate; 6. screw rod; 7. handle; 8. circuit board; 9. steel mesh body; 10. protective layer; 11. first bolt; 12. protection frame; 13. slide groove; 14. fixing plate; 15. second bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a PCB steel mesh compatible with a pad structure, including a base 1, screw holes 2 are opened on both sides of the base 1, slide rails 3 are fixed on both sides of the inside of the base 1, a slider 4 is sleeved on the outside of the slide rail 3, a connecting plate 5 is fixed on one side of the slider 4, the connecting plate 5 forms a sliding structure with the slide rail 3 through the slider 4, the slide rail 3 is an "I"-shaped structure, driving the connecting plate 5 to slide, a screw rod 6 is movably connected to one side of the connecting plate 5, and a handle 7 is installed on one side of the screw rod 6. A circuit board 8 is placed on the inner side of the base 1;

[0024] See also Figure 1 , Figure 4 and Figure 5A steel mesh body 9 is installed above the base 1. The steel mesh body 9 is threadedly connected to the base 1 through a first bolt 11. The first bolt 11 is used in conjunction with the screw hole 2 to fix the steel mesh body 9 to the base 1. The steel mesh body 9 forms a sliding structure with the protection frame 12 through a slide groove 13. The external shape of the steel mesh body 9 is consistent with the internal shape of the slide groove 13, so that the steel mesh body 9 can be placed in the protection frame 12. Protective layers 10 are provided on both the upper and lower sides of the steel mesh body 9. The protective layers 10 are symmetrically arranged with respect to the central axis of the steel mesh body 9. The protective layers 10 are Polyurethane material is used, and polyurethane has excellent wear resistance, moisture resistance and chemical resistance. First bolts 11 are passed through both sides of the steel mesh body 9, a protective frame 12 is installed on the outer side of the steel mesh body 9, a slide groove 13 is opened on the inner side of the protective frame 12, and a fixing plate 14 is installed on one side of the protective frame 12. The fixing plate 14 is threadedly connected to the protective frame 12 through a second bolt 15. The second bolt 15 is symmetrically arranged with the central axis of the fixing plate 14, so that the protective frame 12 and the fixing plate 14 protect the steel mesh body 9, and the second bolts 15 are passed through both sides of the fixing plate 14.

[0025] Working principle: When using the PCB steel mesh with compatible pad structure, first install the protection frame 12 and the fixing plate 14 to the outside of the steel mesh body 9 through the second bolt 15 to protect the steel mesh body 9 and prevent the steel mesh body 9 from deformation or damage during operation. The steel mesh body 9 can be compatible with the pad and weld more accurately. Then, by setting a protective layer 10 on the upper and lower sides of the steel mesh body 9, the protective layer 10 can effectively protect the steel mesh body 9 from physical and chemical damage in harsh environments. Finally, the circuit board 8 is fixed to the inside of the base 1, and the steel mesh body 9 is fixed to the base 1 by the first bolt 11, so that the circuit board 8 is fixed to the steel mesh body 9. During the welding process, it can be ensured that the solder paste is printed in the correct position. In this way, the use process of the PCB steel mesh with compatible pad structure is completed.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB steel mesh compatible with a pad structure, comprising a base (1), characterized in that: Screw holes (2) are provided on both sides of the base (1), slide rails (3) are fixed on both sides of the inside of the base (1), a slider (4) is sleeved on the outside of the slide rail (3), a connecting plate (5) is fixed on one side of the slider (4), a circuit board (8) is placed on the inside of the base (1), a steel mesh body (9) is installed above the base (1), a protective layer (10) is provided on the upper and lower sides of the steel mesh body (9), first bolts (11) are passed through both sides of the steel mesh body (9), a protective frame (12) is installed on the outside of the steel mesh body (9), a slide groove (13) is provided on the inside of the protective frame (12), a fixing plate (14) is installed on one side of the protective frame (12), and second bolts (15) are passed through both sides of the fixing plate (14).

2. A PCB steel mesh compatible with a pad structure according to claim 1, characterized in that: The connecting plate (5) forms a sliding structure with the slide rail (3) through the slider (4), and the slide rail (3) is arranged in an "I"-shaped structure.

3. The PCB steel mesh compatible with the pad structure according to claim 1, characterized in that: One side of the connecting plate (5) is movably connected to a screw rod (6), and one side of the screw rod (6) is provided with a handle (7).

4. The PCB steel mesh compatible with the pad structure according to claim 1, characterized in that: The protective layer (10) is symmetrically arranged with respect to the central axis of the steel mesh body (9), and the protective layer (10) is made of polyurethane material.

5. The PCB steel mesh compatible with the pad structure according to claim 1, characterized in that: The steel mesh body (9) is threadedly connected to the base (1) via a first bolt (11), and the first bolt (11) is used in conjunction with the screw hole (2).

6. The PCB steel mesh compatible with the pad structure according to claim 1, characterized in that: The steel mesh body (9) forms a sliding structure with the protection frame (12) through the sliding groove (13), and the external shape of the steel mesh body (9) is consistent with the internal shape of the sliding groove (13).

7. The PCB steel mesh compatible with the pad structure according to claim 1, characterized in that: The fixing plate (14) is threadedly connected to the protection frame (12) via second bolts (15), and the second bolts (15) are symmetrically arranged with respect to the central axis of the fixing plate (14).

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