A corrosion-resistant, sealed circuit board packaging structure

Abstract

This utility model relates to the field of circuit board packaging technology, and more particularly to a corrosion-resistant, sealed circuit board packaging structure. The technical solution includes an inner packaging shell and a circuit board installed within the inner packaging shell. The circuit board has interfaces protruding from both ends of the inner packaging shell. It also includes a first packaging shell fixedly fitted onto the inner packaging shell. This utility model utilizes the cooperation of the first packaging shell, second packaging shell, packaging shell, sealing mechanism, mounting groove, telescopic groove, and tightening mechanism to install the connector in the mounting groove to form a sealed area. This effectively prevents the intrusion of dust and liquid impurities, reduces the incidence of short circuits and open circuits, reduces equipment downtime, ensures stable operation of electronic equipment in complex environments, and maintains normal system operation. Simultaneously, the sealing protection slows down the aging of the circuit board and interface components, preventing performance degradation due to corrosion and impurity accumulation, and effectively extending the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of circuit board packaging technology, and in particular to a corrosion-resistant and sealed circuit board packaging structure. Background Technology

[0002] A circuit board, also known as a printed circuit board, is an indispensable and crucial component in electronic devices, primarily used for electrical connections and mechanical support between electronic components. The outer casing of a circuit board's package is a vital part of protecting the internal circuitry and electronic components. In current technology, due to the diverse types of circuit board interfaces, the interface portion often protrudes from the casing surface to ensure smooth connection with external devices. This structural feature makes it difficult for the interface to fit tightly against the casing, easily creating gaps that allow dust and liquid impurities to easily penetrate, affecting the normal operation of the circuit board. Furthermore, the interface remains directly exposed after connection to the connector, and since interfaces and connectors typically contain metal components, these metals are highly susceptible to chemical reactions and oxidation corrosion in harsh environments such as humidity, salt spray, and acid / alkali conditions, thus affecting interface performance and the lifespan of the circuit board. Utility Model Content

[0003] The purpose of this invention is to address the problems in the prior art where the protruding outer shell of the circuit board interface easily leaves gaps that allow impurities to enter, and the exposed metal parts after the interface and connector are connected are easily corroded in harsh environments, affecting performance and lifespan. This invention proposes a corrosion-resistant, sealed circuit board packaging structure.

[0004] The technical solution of this utility model is as follows: A corrosion-resistant and sealed circuit board packaging structure includes an inner packaging shell and a circuit board installed inside the inner packaging shell. The circuit board has interfaces protruding from both ends of the inner packaging shell. The structure also includes: a first packaging shell fixedly sleeved on the inner packaging shell, with a second packaging shell movably connected to the first packaging shell; mounting grooves at both ends of the first packaging shell, each groove having a first through hole and a second through hole that communicate with each other; telescopic grooves at both ends of the second packaging shell corresponding to the second through holes; a sealing mechanism slidably disposed in the telescopic grooves and the second through holes; and a tightening mechanism installed at both ends of the second packaging shell to open and close the sealing mechanism.

[0005] Optionally, the sealing mechanism includes a first rubber plate and a second rubber plate that are slidably connected in the second perforation and the telescopic groove. An arc-shaped groove is provided at one end of the first rubber plate and the second rubber plate that are close to each other. A pair of mutually locking sealing sleeves are fixedly connected to the outer wall of the one end of the first rubber plate and the second rubber plate that are close to each other. A sealing gasket is provided inside the sealing sleeve.

[0006] Optionally, the tightening mechanism includes a spiral rod that is spirally connected to both ends of the second packaging shell. One end of the spiral rod is rotatably connected to the end of the first rubber plate away from the second rubber plate, and a knob is fixedly connected to the end of the spiral rod away from the first rubber plate.

[0007] Optionally, the outer wall of the knob is provided with a plurality of grooves arranged in a circumferential array.

[0008] Optionally, the inner packaging shell has multiple screw holes near the opening end of the second packaging shell, and the second packaging shell has multiple mounting screws that are spirally connected to the screw holes.

[0009] Optionally, a pair of sealing gaskets are provided between the first and second encapsulation shells.

[0010] Optionally, a pair of the sealing gaskets are arranged symmetrically around the first perforation.

[0011] Optionally, the sealing sleeve is made of nitrile rubber, and the sealing gasket is made of EPDM rubber.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This invention utilizes the cooperation of a first encapsulation shell, a second encapsulation shell, a sub-shell, a sealing mechanism, a mounting groove, a telescopic groove, and a tightening mechanism to install the connector into the mounting groove, forming a sealed area. This effectively prevents the intrusion of dust and liquid impurities, reduces the incidence of short circuits and open circuits, minimizes equipment downtime, ensures stable operation of electronic equipment in complex environments, and maintains normal system operation. Simultaneously, the sealed protection slows down the aging of circuit boards and interface components, preventing performance degradation due to corrosion and impurity accumulation, and effectively extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 A schematic diagram of a corrosion-resistant sealed circuit board packaging structure according to this utility model is provided;

[0015] Figure 2 for Figure 1 A schematic diagram of the split structure;

[0016] Figure 3 for Figure 2 A schematic diagram of the split structure;

[0017] Figure 4 for Figure 1 A schematic diagram of the split cross-sectional structure of the first and second packaging shells;

[0018] Figure 5 for Figure 3A schematic diagram of the cross-sectional structure of the first and second rubber clamps.

[0019] Reference numerals: 1. First encapsulation shell; 2. Second encapsulation shell; 21. Mounting groove; 22. First through hole; 23. Slide groove; 24. Second through hole; 201. Mounting screw; 202. Screw hole; 203. Telescopic groove; 3. Inner packaging shell; 4. First rubber clamp; 5. Second rubber clamp; 451. Sealing sleeve; 452. Sealing gasket; 453. Spiral rod; 454. Knob; 455. Groove; 6. Sealing gasket; 7. Circuit board. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0026] Example

[0027] like Figures 1 to 5 As shown, the present invention proposes a corrosion-resistant sealed circuit board packaging structure, including an inner packaging shell 3 and a circuit board 7 installed inside the inner packaging shell 3. The circuit board 7 has interfaces protruding from both ends of the inner packaging shell 3. A first packaging shell 1 is fixedly sleeved on the inner packaging shell 3. A second packaging shell 2 is movably connected to the first packaging shell 1. A pair of sealing gaskets 6 are provided between the first packaging shell 1 and the second packaging shell 2. The first packaging shell 1 has mounting grooves 21 at both ends. The mounting grooves 21 are all provided with interconnected first through holes 22 and second through holes 24. The pair of sealing gaskets 6 are symmetrically arranged with the first through hole 22 as the center. The second packaging shell 2 has telescopic grooves 203 at both ends corresponding to the second through holes 24. The first rubber plate 4 is sealed to the telescopic groove 203.

[0028] Among them, such as Figure 2 , Figure 3 and Figure 5 As shown, a sealing mechanism is provided in the telescopic groove 203 and the second through hole 24. The sealing mechanism includes a first rubber clamping plate 4 and a second rubber clamping plate 5 slidably connected in the second through hole 24 and the telescopic groove 203. The first rubber clamping plate 4 and the second rubber clamping plate 5 are sealed to both the first through hole 22 and the second through hole 24. An arc-shaped groove is opened at the near end of the first rubber clamping plate 4 and the second rubber clamping plate 5. The arc-shaped groove is used to fit the outer wall of the connecting wire. A pair of mutually interlocking sealing sleeves 451 are fixedly connected to the outer wall of the near end of the first rubber clamping plate 4 and the second rubber clamping plate 5. A sealing gasket 452 is provided inside the sealing sleeve 451. The sealing gasket 452 is made of EPDM rubber.

[0029] In addition, such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the second encapsulation shell 2 is equipped with a tightening mechanism at both ends to open and close the sealing mechanism. The tightening mechanism includes a spiral rod 453 that is spirally connected to both ends of the second encapsulation shell 2. One end of the spiral rod 453 is rotatably connected to the end of the first rubber plate 4 away from the second rubber plate 5. A knob 454 is fixedly connected to the end of the spiral rod 453 away from the first rubber plate 4. The outer wall of the knob 454 is provided with a plurality of grooves 455 arranged in a circumferential array. The grooves 455 are used to increase the friction when the hand contacts the knob 454 to prevent the knob 454 from sliding when manually rotating.

[0030] It is worth noting that, such as Figures 1 to 4 As shown, the inner packaging shell 3 has multiple screw holes 202 at the opening end near the second packaging shell 2. The second packaging shell 2 has multiple mounting screws 201 that are spirally connected to the screw holes 202. The mounting screws 201 are a common type of fastener that, by cooperating with nuts or being screwed into holes with internal threads, serve to fix and connect components.

[0031] Furthermore, such as Figure 5 As shown, the sealing sleeve 451 is made of nitrile rubber, which has excellent oil resistance and good resistance to various oils and organic solvents, exhibiting good anti-corrosion performance in sealing applications in the petrochemical industry. The sealing gasket 452 is made of ethylene propylene diene monomer (EPDM) rubber, which has excellent weather resistance, ozone resistance, and chemical corrosion resistance, maintaining good performance under different environmental conditions and resisting the erosion of various chemicals. It also has excellent elasticity, undergoing significant elastic deformation under compression to adapt to the shape and surface contour of the wire, thus adhering tightly to the wire surface. When the external force is removed, it can recover some or all of its deformation, maintaining its adherence to the wire. Furthermore, EPDM rubber itself has a certain degree of viscosity; under compression, its molecular chains approach the molecules on the wire surface, generating intermolecular forces, such as van der Waals forces, thereby enhancing adhesion to the wire and allowing for a better fit. In addition, the self-adhesive properties of rubber enable it to form a good bond when in contact with itself or other materials, which helps to ensure a tight fit with the wire during extrusion.

[0032] In this embodiment, when using a corrosion-resistant sealed circuit board packaging structure, firstly... Figure 1 The first encapsulation shell 1 and the second encapsulation shell 2 are unfolded to Figure 2In the current state, the connector of the connecting wire can be inserted into the interface on the circuit board 7 through the corresponding first through hole 22, and then the connecting wire can be inserted into the arc-shaped groove on the end of the second rubber clamp 5. After the interfaces at both ends of the circuit board 7 are connected, simply move the second packaging shell 2 and align the multiple mounting screws 201 on the second packaging shell 2 with the multiple screw holes 202 in the inner packaging shell 3. At the same time, the second packaging shell 2 also drives the corresponding first rubber clamp 4 to be inserted into the corresponding sliding groove 23, and the arc-shaped groove at the end of the first rubber clamp 4 and the arc-shaped groove of the second rubber clamp 5 interlock to hold the connecting wire. At this time, the multiple mounting screws 201 on the second packaging shell 2 can be tightened, and then the knob 454 can be rotated. The knob 454 drives the screw rod 453 to rotate. Since the screw rod 453 is spirally connected to the second packaging shell 2, the end of the screw rod 453 can push the first rubber clamp 4 to move along the telescopic groove 203 toward the connecting wire, so that the arc-shaped grooves at the close ends of the first rubber clamp 4 and the second rubber clamp 5 tightly hold the connecting wire. Finally, when the first rubber clamp 4 and the second rubber clamp 5 are tightly locked together, they will also cause the corresponding sealing sleeves 451 on them to tightly clamp the connecting wire. The tight locking of each pair of sealing sleeves 451 will cause the sealing gaskets 452 inside to deform in shape to fit the connecting wire. This ensures that the sealing gaskets 452 lock the connecting wire and prevents dust and liquid from entering the mounting groove 21 from the gap between the first rubber clamp 4 and the second rubber clamp 5.

[0033] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. 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. An anticorrosion sealed circuit board package structure comprising an inner package case (3) and a circuit board (7) mounted in the inner package case (3), both ends of the circuit board (7) being provided with interfaces protruding from both ends of the inner package case (3), characterized in that, Also includes: A first packaging shell (1) is fixedly sleeved on the inner packaging shell (3), and a second packaging shell (2) is movably connected to the first packaging shell (1); Mounting grooves (21) are provided at both ends of the first encapsulation shell (1). The interior of each mounting groove (21) is provided with a first through hole (22) and a second through hole (24) that are interconnected. The two ends of the second encapsulation shell (2) are provided with telescopic grooves (203) corresponding to the second through hole (24). A sealing mechanism that is slidably disposed within the telescopic groove (203) and the second perforation (24); The tightening mechanism is installed at both ends of the second encapsulation shell (2) to open and close the sealing mechanism.

2. The corrosion-resistant sealed circuit board packaging structure according to claim 1, characterized in that, The sealing mechanism includes a first rubber plate (4) and a second rubber plate (5) that are slidably connected in the second perforation (24) and the telescopic groove (203). The first rubber plate (4) and the second rubber plate (5) are both provided with arc-shaped grooves at their close ends. A pair of mutually locking sealing sleeves (451) are fixedly connected to the outer wall of the first rubber plate (4) and the second rubber plate (5) at their close ends. The sealing sleeves (451) are both provided with sealing gaskets (452) inside.

3. The corrosion-resistant sealed circuit board packaging structure according to claim 2, characterized in that, The tightening mechanism includes a spiral rod (453) that is spirally connected to both ends of the second encapsulation shell (2). One end of the spiral rod (453) is rotatably connected to the end of the first rubber plate (4) away from the second rubber plate (5). A knob (454) is fixedly connected to the end of the spiral rod (453) away from the first rubber plate (4).

4. The corrosion-resistant sealed circuit board packaging structure according to claim 3, characterized in that, The outer wall of the knob (454) has multiple grooves (455) arranged in a circumferential array.

5. The corrosion-resistant sealed circuit board packaging structure according to claim 1, characterized in that, The inner packaging shell (3) has multiple screw holes (202) at the opening end near the second packaging shell (2), and the second packaging shell (2) has multiple mounting screws (201) that are spirally connected to the screw holes (202).

6. The corrosion-resistant sealed circuit board packaging structure according to claim 1, characterized in that, A pair of sealing gaskets (6) are provided between the first encapsulation shell (1) and the second encapsulation shell (2).

7. The corrosion-resistant sealed circuit board packaging structure according to claim 6, characterized in that, The pair of sealing gaskets (6) are arranged symmetrically around the first perforation (22).

8. The corrosion-resistant sealed circuit board packaging structure according to claim 2, characterized in that, The sealing sleeve (451) is made of nitrile rubber, and the sealing gasket (452) is made of EPDM rubber.

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