Protective device for spraying conformal coating on circuit board

Abstract

The utility model discloses a protective device for spraying three-proofing paint on a circuit board, which comprises a lower protective plate, a clamping groove is arranged on the upper surface of the lower protective plate, a notch is arranged on the upper surface of the lower protective plate, a supporting strip and two groups of supporting blocks are respectively arranged in the clamping groove, an upper protective plate is arranged on the upper surface of the lower protective plate, and the upper protective plate is arranged on the lower surface of the lower protective plate. A paint spraying groove is formed in the upper surface of the upper protection plate, fixing columns are arranged on the upper surface of the lower protection plate, fixing holes are formed in the upper surface of the upper protection plate, a circuit board body is arranged on the upper surfaces of the supporting strips, and dismounting grooves are symmetrically formed in the upper surface of the lower protection plate. According to the utility model, the circuit board body is placed in the clamping groove, then the upper protection plate covers the upper surface of the lower protection plate, and the lower protection plate and the upper protection plate are opposite to each other to form a pressing plate, so that the phenomenon that the circuit board body tilts can be avoided, and the circuit board body is prevented from being damaged; the clamping groove can be subjected to profiling design according to the requirement of a protected position on the circuit board body.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board spraying technology, and in particular relates to a protective device for spraying conformal coating on circuit boards. Background Technology

[0002] Applying conformal coating to circuit boards is an effective protective measure that significantly improves their reliability and lifespan. Conformal coating protects circuit boards from environmental factors such as moisture, dust, mold, chemical corrosion, vibration, high dust levels, salt spray, and high temperatures. It forms a transparent protective film with properties such as insulation, moisture resistance, leakage prevention, shock resistance, dust resistance, corrosion resistance, aging resistance, and corona resistance. It prevents leakage, allowing for higher power and closer PCB spacing, meeting the needs of component miniaturization.

[0003] Existing spraying methods involve covering the non-spraying areas of the circuit board with a baffle before spraying. Since the baffle is on the circuit board, if it shifts during spraying and the spraying position is incorrect, the spraying needs to be redone, wasting time and efficiency. Therefore, a protective device for spraying conformal coating on circuit boards is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a protective device for applying conformal coating to circuit boards, thereby solving existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a protective device for spraying conformal coating on circuit boards, comprising a lower protective plate, a slot and an opening on the upper surface of the lower protective plate, a support strip and two sets of support blocks respectively disposed in the slot, an upper protective plate disposed on the upper surface of the lower protective plate, a spraying groove on the upper surface of the upper protective plate, a fixing post disposed on the upper surface of the lower protective plate, a fixing hole disposed on the upper surface of the upper protective plate, a circuit board body disposed on the upper surface of the support strip, symmetrical disassembly grooves disposed on the upper surface of the lower protective plate, the openings of the grooves communicating with the slots, and multiple sets of mounting grooves disposed on the lower protective plate, each mounting groove containing a magnetic block.

[0007] Furthermore, the position of the fixing post is adapted to the position of the fixing hole, the shape and size of the fixing post are adapted to the fixing hole, and the circuit board body is disposed inside the slot, the shape and size of the slot are adapted to the circuit board body.

[0008] Furthermore, the bottom surface of the upper protective plate is provided with multiple sets of magnetic sheets, the position and number of which are adapted to the position and number of magnetic blocks. The upper protective plate and the lower protective plate are snapped together, the magnetic blocks and magnetic sheets are magnetically connected, the position of the paint spraying groove is adapted to the position of the circuit board body that needs to be sprayed, and the shape and size of the paint spraying groove are adapted to the part of the circuit board body that needs to be sprayed. Both the paint spraying groove and the slot are provided with four sets.

[0009] This utility model has the following beneficial effects:

[0010] This invention places the circuit board body in a slot, and then covers the upper protective plate on the upper surface of the lower protective plate. The lower and upper protective plates form a pressure plate, which can prevent the circuit board body from lifting and avoid damage to the circuit board body. The slot can be designed to conform to the requirements of the protected position on the circuit board body. At the same time, because the shape and size of the upper protective plate and the paint spraying slot are adapted to the parts of the circuit board body that need to be sprayed, the parts or areas of the circuit board body that should not be sprayed do not come into contact with the conformal coating, while not affecting the parts or areas that need to be covered by the conformal coating. In addition, the magnetic connection between the magnetic block and the magnetic sheet can make the upper and lower protective plates fit tightly together.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of a protective device for spraying conformal coating onto circuit boards.

[0014] Figure 2 This is a schematic diagram of the overall structure of the lower protective plate of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the upper protective plate in this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the circuit board body in this utility model.

[0017] The components represented by each number in the attached diagram are listed below: 1. Lower protective plate; 2. Upper protective plate; 101. Slot; 102. Support bar; 103. Fixing post; 105. Groove; 107. Magnetic block; 11. Disassembly groove; 201. Spray painting groove; 202. Fixing hole; 3. Circuit board body. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Please see Figure 1 - Figure 4 As shown, this utility model is a protective device for spraying conformal coating on circuit boards, including a lower protective plate 1, a slot 101 and a groove 105 on the upper surface of the lower protective plate 1, a support strip 102 and two sets of support blocks respectively arranged in the slot 101, an upper protective plate 2 is arranged on the upper surface of the lower protective plate 1, and a paint spraying groove 201 is arranged on the upper surface of the upper protective plate 2.

[0022] Furthermore, a fixing post 103 is provided on the upper surface of the lower protective plate 1, a fixing hole 202 is provided on the upper surface of the upper protective plate 2, a circuit board body 3 is provided on the upper surface of the support bar 102, and a disassembly groove 11 is symmetrically provided on the upper surface of the lower protective plate 1. The groove opening 105 communicates with the card slot 101. Multiple sets of installation grooves are provided on the lower protective plate 1, and a magnetic block 107 is provided in the installation groove.

[0023] Furthermore, the position of the fixing post 103 is adapted to the position of the fixing hole 202, the shape and size of the fixing post 103 are adapted to the fixing hole 202, and the circuit board body 3 is disposed inside the slot 101, the shape and size of the slot 101 are adapted to the circuit board body 3.

[0024] Furthermore, the bottom surface of the upper protective plate 2 is provided with multiple sets of magnetic sheets. The position and number of magnetic sheets are adapted to the position and number of magnetic blocks 107. The upper protective plate 2 and the lower protective plate 1 are snapped together. The magnetic blocks 107 are magnetically connected to the magnetic sheets. The position of the paint spraying groove 201 is adapted to the position of the circuit board body 3 that needs to be sprayed. The shape and size of the paint spraying groove 201 are adapted to the part of the circuit board body 3 that needs to be sprayed. Both the paint spraying groove 201 and the slot 101 are provided with four sets.

[0025] It should be noted that this utility model places the circuit board body 3 in the slot 101, and then covers the upper protective plate 2 on the upper surface of the lower protective plate 1. The lower protective plate 1 and the upper protective plate 2 form a pressure plate, which can prevent the circuit board body 3 from lifting and avoid damage to the circuit board body 3. The slot 101 can be designed to conform to the requirements of the protected position on the circuit board body 3. At the same time, since the shape and size of the upper protective plate 2 and the paint spraying tank 201 are adapted to the parts of the circuit board body 3 that need to be sprayed, the parts or areas of the circuit board body 3 that should not be sprayed do not come into contact with the conformal coating, while not affecting the parts or areas that need to be covered by the conformal coating. In addition, since the magnetic block 107 is magnetically connected to the magnetic sheet, the upper protective plate 2 and the lower protective plate 1 can be tightly attached.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protection device for spraying a three-proofing paint on a circuit board, comprising a lower protection plate (1), characterized in that: The upper surface of the lower guard plate (1) is provided with a clamping groove (101), the upper surface of the lower guard plate (1) is provided with a notch (105), the clamping groove (101) is respectively provided with a supporting strip (102) and two groups of supporting blocks, the upper surface of the lower guard plate (1) is provided with an upper guard plate (2), and the upper surface of the upper guard plate (2) is provided with a paint spraying groove (201).

2. A protective device for spraying a three-proofing paint on a circuit board according to claim 1, wherein The upper surface of the lower guard plate (1) is provided with a fixed column (103), the upper surface of the upper guard plate (2) is provided with a fixed hole (202), and the upper surface of the supporting strip (102) is provided with a circuit board body (3).

3. A protective device for spraying a three-proofing paint on a circuit board according to claim 1, wherein The upper surface of the lower guard plate (1) is provided with a symmetrically arranged dismounting groove (11), the notch (105) is communicated with the clamping groove (101), the lower guard plate (1) is provided with a plurality of groups of mounting grooves, and the mounting grooves are provided with magnetic blocks (107).

4. A protective device for spraying a three-proofing paint on a circuit board according to claim 2, wherein The fixed column (103) is located in the fixed hole (202), the shape and size of the fixed column (103) are adapted to the fixed hole (202), the circuit board body (3) is arranged in the clamping groove (101), and the shape and size of the clamping groove (101) are adapted to the circuit board body (3).

5. A protective device for spraying a three-proofing paint on a circuit board according to claim 3, wherein The bottom surface of the upper guard plate (2) is provided with a plurality of groups of magnetic sheets, the positions and quantities of the magnetic sheets are adapted to the positions and quantities of the magnetic blocks (107), the upper guard plate (2) is clamped and matched with the lower guard plate (1), and the magnetic blocks (107) are magnetically connected with the magnetic sheets.

6. A protective device for spraying a three-proofing paint on a circuit board according to claim 2, wherein The positions of the paint spraying grooves (201) are adapted to the positions required to be sprayed of the circuit board body (3), the shape and size of the paint spraying grooves (201) are adapted to the positions required to be sprayed of the circuit board body (3), and the paint spraying grooves (201) and the clamping grooves (101) are all provided with four groups.

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