An oxidation-resistant device for printed circuit board production

By designing an anti-oxidation device that includes a fan shroud, a fan, and a moisture-absorbing component, the problem of circuit board oxidation in humid environments was solved, achieving stable storage of circuit boards and improved anti-oxidation performance.

CN224439335UActive Publication Date: 2026-06-30JIANGXI BANGHEMEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI BANGHEMEI TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the prior art, circuit boards are prone to oxidation in humid environments, which damages the anti-oxidation layer and affects performance. Furthermore, existing storage devices are difficult to keep dry effectively.

Method used

An anti-oxidation device was designed, comprising a shroud, a fan, a moisture-absorbing component, and a clamp-shaped clamp. It maintains dryness through ventilation and moisture absorption, and facilitates stable storage of circuit boards through the clamp-shaped clamp and pull-out plate structure.

Benefits of technology

It effectively prevents circuit boards from oxidizing in humid environments, enhances the antioxidant effect, and ensures the stability of the circuit board and the integrity of the antioxidant layer.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an anti-oxidation device for printed circuit board production, including an anti-oxidation box. A fan shroud is connected to the top surface of the anti-oxidation box, and a fan is installed inside the fan shroud. Beneficial effects: By connecting the top of the anti-oxidation box to the fan shroud, air inside the shroud is drawn into the anti-oxidation box by the fan blades. When outside air enters the shroud through ventilation holes, moisture is absorbed by a moisture-absorbing component. This accelerated ventilation and moisture absorption maintains the dryness of the anti-oxidation box, preventing oxidation damage to the anti-oxidation layer in a humid environment, thereby improving the anti-oxidation effect of the circuit board. Furthermore, a connecting shell with a slot is provided on the side of the anti-oxidation box, and a connector with a snap-fit ​​element is provided on the pull-out plate. This allows the arc-shaped portion of the snap-fit ​​element to form a flexible snap-fit ​​structure with the slot after it extends into the connecting shell, facilitating flexible locking and pulling of the pull-out plate.
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Description

Technical Field

[0001] This utility model relates to the field of protection technology for printed circuit board production, and more specifically, to an anti-oxidation device for printed circuit board production. Background Technology

[0002] A printed circuit board (PCB), also known as a circuit board, is a crucial electronic component. It often serves as the support for electronic components and the carrier for their electrical connections. PCBs are manufactured using electronic printing technology and are used in various electronic products. Their dimensions vary depending on the product size. After production, to prevent oxidation of the solder joints and subsequent malfunction, PCBs require anti-oxidation protection. Anti-oxidation processes prevent performance degradation or failure during use. Common anti-oxidation processes include OSP (Organic Solder Protector), Electroless Nickel-Gold Immersion (ENIG), silver immersion, and tin immersion.

[0003] In the prior art, circuit boards that have undergone anti-oxidation treatment need to be stored in a dry, low-temperature environment to prevent the anti-oxidation solder layer from being oxidized in a humid environment. Generally, finished circuit boards are placed in an anti-oxidation box to isolate the circuit boards from the influence of the external environment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-oxidation device for printed circuit board production, which has the advantages of easy storage and anti-oxidation of circuit boards, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned advantages of easy storage and anti-oxidation preservation of printed circuit boards, the specific technical solution adopted by this utility model is as follows: An anti-oxidation device for printed circuit board production includes an anti-oxidation box. The top surface of the anti-oxidation box is connected to a fan hood, and a fan is installed inside the fan hood. Several ventilation holes are opened around the side of the fan hood. A moisture-absorbing component is adhered to the inner wall of the fan hood. The moisture-absorbing component is composed of honeycomb sponge and desiccant filled inside it. A pull-out plate is pulled out at the opening on one side of the anti-oxidation box. A set of clamp-shaped clamps is arranged in pairs on the inner side of the pull-out plate. Connecting posts are fixed at the four corners of the top surface of the anti-oxidation box, and connecting cylinders are fixed at the four corners of the bottom surface of the anti-oxidation box corresponding to the connecting posts.

[0008] Furthermore, the clamp-shaped clamp has a dovetail strip on the side facing the inner wall of the pull-out plate, and the inner wall of the pull-out plate has a dovetail groove corresponding to the dovetail strip. The clamp-shaped clamp has a clamping groove at the end away from the dovetail strip, and the clamping groove of the clamp-shaped clamp is clamped to the edge of the circuit board.

[0009] Furthermore, a ventilation mesh is fixed to the connection between the antioxidant box and the fan hood by screws, and multiple moisture-absorbing components are arranged around the fan on the inner wall of the fan hood.

[0010] Furthermore, a connector is fixed to each of the left and right sides of the pull-out plate, and each connector is provided with a rectangular frame-shaped snap-fit ​​component, and the snap-fit ​​component of the connector is provided with an arc portion. The side of the anti-oxidation box is welded with a connecting shell corresponding to the connector, and a trapezoidal block is provided inside the connecting shell, and a slot is provided on the trapezoidal block of the connecting shell corresponding to the arc portion.

[0011] Furthermore, two guide rails are welded to the inner bottom surface of the antioxidant box, and two guide blocks that are slidably connected to the guide rails are provided on the bottom surface of the pull-out plate.

[0012] Furthermore, the connecting cylinder is provided with a circular groove, the inner diameter of which matches the diameter of the connecting column, and the depth of which matches the length of the connecting column.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides an antioxidant device for printed circuit board production, which has the following beneficial effects:

[0015] (1) In this utility model, a fan shroud is connected to the top of the anti-oxidation box. By starting the fan inside the fan shroud, the air inside the fan shroud is introduced into the anti-oxidation box by the action of the fan blades. When the outside air enters the fan shroud through the ventilation hole, the moisture is absorbed by the moisture absorption component. This accelerates ventilation and moisture absorption to maintain the dryness of the anti-oxidation box and avoids oxidation damage to the anti-oxidation layer in a humid environment, thereby improving the anti-oxidation effect of the circuit board. On this basis, a connecting shell with a slot is set on the side of the anti-oxidation box, and a connector with a snap-fit ​​is set on the pull plate. After the snap-fit ​​is inserted into the connecting shell, the arc part of the snap-fit ​​can form a flexible snap-fit ​​structure with the slot, which makes it easy to lock and pull the pull plate flexibly.

[0016] (2) This utility model uses an anti-oxidation box equipped with a pull-out plate to form a circuit board storage device. By clamping two clamp-shaped clamps with the left and right edges of the circuit board respectively, the circuit board and the two clamp-shaped clamps are inserted into the pull-out plate, so that the dovetail strips of the two clamp-shaped clamps are inserted into the dovetail grooves corresponding to the inner wall of the pull-out plate. Combined with the dovetail grooves set in pairs in the pull-out plate, it is easy to stack and store multiple circuit boards. At the same time, by setting connecting posts and connecting cylinders on the top and bottom surfaces of the anti-oxidation box respectively, several anti-oxidation boxes can be stacked in the vertical direction, thereby increasing the stability of the circuit board placement. With this structure, the surface of the circuit board is protected from friction damage, which would damage the anti-oxidation layer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0018] Figure 1 This is a schematic diagram of the structure of an anti-oxidation device for printed circuit board production according to an embodiment of the present utility model;

[0019] Figure 2 This is a top view of an anti-oxidation device for printed circuit board production according to an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of an anti-oxidation device for printed circuit board production according to an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of an anti-oxidation device for printed circuit board production according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Antioxidant box; 2. Pull-out panel; 3. Fan cover; 4. Connecting cylinder; 5. Connecting column; 6. Connecting shell; 7. Connector; 8. Ventilation hole; 9. Fan; 10. Moisture absorption component; 11. Guide rail; 12. Guide block; 13. Snap-fit ​​component; 14. Dovetail groove; 15. Clamping clamp; 16. Dovetail strip; 17. Slot; 18. Arc section. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, an antioxidant device for printed circuit board production is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, an anti-oxidation device for printed circuit board production according to an embodiment of the present invention includes an anti-oxidation box 1. A fan 3 is connected to the top surface of the anti-oxidation box 1, and a fan 9 is installed inside the fan 3. Several ventilation holes 8 are opened around the side of the fan 3. A moisture-absorbing component 10 is adhered to the inner wall of the fan 3, and the moisture-absorbing component 10 is composed of honeycomb sponge and a desiccant filled inside it. A pull-out plate 2 is pulled out from the opening on one side of the anti-oxidation box 1, and a set of clamp-shaped clamps 15 are arranged in pairs on the inner side of the pull-out plate 2. The top surface of the anti-oxidation box 1... Each of the four corners is fixed with a connecting post 5, and each of the four corners of the bottom surface of the anti-oxidation box 1 is fixed with a connecting cylinder 4 corresponding to the connecting post 5. The fan 9 is controlled by manually starting and stopping the switch. The wiring diagram of the power component and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring arrangement will not be explained in detail. In order to ensure the storage effect of the circuit board, the anti-oxidation box 1 can be stored in a low temperature environment to prevent the anti-oxidation layer on the circuit board from being damaged.

[0027] In one embodiment, the clamp-shaped clamp 15 has a dovetail strip 16 on the side facing the inner wall of the pull-out plate 2, and the inner wall of the pull-out plate 2 has a dovetail groove 14 corresponding to the dovetail strip 16. The clamp-shaped clamp 15 has a clamping groove at the end away from the dovetail strip 16, and the clamping groove of the clamp-shaped clamp 15 clamps the edge of the circuit board. With this structure, it is easy to load and unload the clamp-shaped clamp 15, which satisfies the clamping of the circuit board and installs it in the pull-out plate 2.

[0028] In one embodiment, a ventilation mesh is fixed to the connection between the antioxidant box 1 and the fan shroud 3 by screws. Multiple moisture-absorbing components 10 are arranged around the fan 9 on the inner wall of the fan shroud 3. The ventilation mesh fixed by screws is removable, making it easy to replace or maintain the fan 9 and the moisture-absorbing components 10.

[0029] In one embodiment, a connector 7 is fixed on each of the left and right sides of the pull-out plate 2, and each connector 7 is provided with a rectangular frame-shaped snap-fit ​​13. The snap-fit ​​13 of the connector 7 is provided with an arc portion 18. A connecting shell 6 is welded to the side of the anti-oxidation box corresponding to the connector 7. A trapezoidal block is provided inside the connecting shell 6, and a slot 17 is provided on the trapezoidal block of the connecting shell 6 corresponding to the arc portion 18.

[0030] In one embodiment, two guide rails 11 are welded to the inner bottom surface of the antioxidant box 1, and two guide blocks 12 that are slidably connected to the guide rails 11 are provided on the bottom surface of the pull-out plate 2. With this structure, it is easy to pull out and move the pull-out plate 2. The guide rails 11 are U-shaped and the guide blocks 12 are rectangular.

[0031] In one embodiment, a circular groove is provided inside the connecting cylinder 4, and the inner diameter of the circular groove matches the diameter of the connecting post 5, and the depth of the circular groove matches the length of the connecting post 5. This structure forms a splicing structure of several anti-oxidation boxes 1, so that several anti-oxidation boxes 1 can be stacked in the vertical direction, thereby increasing the stability of the circuit board placement.

[0032] Working principle: By clamping two clamp-shaped clips 15 onto the left and right edges of the circuit board respectively, the circuit board and the two clamp-shaped clips 15 are inserted into the pull-out plate 2. This causes the dovetail strips 16 of the two clamp-shaped clips 15 to engage with the dovetail grooves 14 corresponding to those on the inner wall of the pull-out plate 2. Combined with the dovetail grooves 14 arranged in pairs within the pull-out plate 2, it is easy to stack and store multiple circuit boards. Then, the pull-out plate 2 with the circuit boards is inserted into the anti-oxidation box 1, so that after the snap-fit ​​13 extends into the connecting shell 6, the arc portion 18 of the snap-fit ​​13 can form a flexible snap-fit ​​structure with the snap-fit ​​groove 17, which facilitates the flexible locking of the pull-out plate 2 and makes subsequent maintenance convenient. When the circuit board is stored in a pull-out manner, the connecting posts 5 and connecting cylinders 4 are respectively set on the top and bottom surfaces of the anti-oxidation box 1, allowing several anti-oxidation boxes 1 to be stacked vertically, thereby increasing the stability of the circuit board placement. By activating the fan 9 inside the fan shroud 3, the air inside the fan shroud 3 is drawn into the anti-oxidation box 1 by the action of the fan blades. When the outside air enters the fan shroud 3 through the ventilation holes 8, the moisture is absorbed by the moisture absorption component 10. This method of accelerating ventilation and moisture absorption maintains the dryness of the anti-oxidation box 1, avoids oxidation damage to the anti-oxidation layer in a humid environment, and thus improves the anti-oxidation effect of the circuit board.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oxidation-resistant device for printed wiring board production, comprising an oxidation-resistant box (1), characterized in that, The top surface of the antioxidant box (1) is connected to a hood (3), and a fan (9) is installed inside the hood (3). Several ventilation holes (8) are opened around the side of the hood (3). A moisture-absorbing component (10) is bonded to the inner wall of the hood (3). The moisture-absorbing component (10) is composed of honeycomb sponge and desiccant filled inside it. A pull-out plate (2) is installed at the opening on one side of the antioxidant box (1). A set of clamp-shaped clamps (15) is set on each side of the pull-out plate (2). A connecting post (5) is fixed at each of the four corners of the top surface of the antioxidant box (1). A connecting cylinder (4) is fixed at each of the four corners of the bottom surface of the antioxidant box (1) corresponding to the connecting post (5).

2. The oxidation resistant device for printed wiring board production according to claim 1, wherein The clamp-shaped clamp (15) has a dovetail strip (16) on the side facing the inner wall of the pull-out plate (2). The inner wall of the pull-out plate (2) has a dovetail groove (14) corresponding to the dovetail strip (16). The clamp-shaped clamp (15) has a clamping groove at the end away from the dovetail strip (16), and the clamping groove of the clamp-shaped clamp (15) is clamped to the edge of the circuit board.

3. The anti-oxidation device for printed circuit board production according to claim 1, characterized in that, The antioxidant box (1) is connected to the fan hood (3) by screws and a ventilation mesh is fixed thereon. Multiple moisture-absorbing components (10) are arranged around the fan (9) on the inner wall of the fan hood (3).

4. The anti-oxidation device for printed circuit board production according to claim 1, characterized in that, A connector (7) is fixed on each of the left and right sides of the pull-out plate (2), and a rectangular frame-shaped snap-fit ​​(13) is provided on each connector (7). The snap-fit ​​(13) of the connector (7) is provided with an arc part (18). A connecting shell (6) is welded to the side of the antioxidant box corresponding to the connector (7), and a trapezoidal block is provided inside the connecting shell (6). A slot (17) is provided on the trapezoidal block of the connecting shell (6) corresponding to the arc part (18).

5. The anti-oxidation device for printed circuit board production according to claim 1, characterized in that, The bottom inner side of the antioxidant box (1) is welded with two guide rails (11), and the bottom side of the pull plate (2) is provided with two guide blocks (12) that are slidably connected to the guide rails (11).

6. The anti-oxidation device for printed circuit board production according to claim 1, characterized in that, The connecting cylinder (4) is provided with a circular groove, and the inner diameter of the circular groove matches the diameter of the connecting column (5), and the depth of the circular groove matches the length of the connecting column (5).