Circuit board with waterproof structure for data information acquisition
By designing a rectangular protective frame and a ring-shaped copper coil protection circuit on the circuit board, and using the conductivity of water to trigger the field-effect transistor to cut off the power supply, the problems of difficult waterproofing of the circuit board and resin residue are solved, achieving effective waterproof protection and easy removal.
Patent Information
- Application Number
- CN202423230073.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing circuit board waterproofing treatments mostly use resin sealing, which makes disassembly difficult and resin residue hard to remove, and cannot effectively prevent moisture-induced circuit breakers.
A waterproof circuit board was designed, comprising a rectangular protective frame, inner and outer cavities, and a ring-shaped copper coil. The power supply is cut off by a field-effect transistor, and the protection circuit is triggered by the conductivity of water, thus achieving double protection.
It achieves power cut-off before moisture contact, preventing circuit board open circuits and providing double protection. It also features a compact and seamless design, is easy to disassemble, and leaves minimal resin residue.
Smart Images
Figure CN223714384U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of circuit board, especially relates to a circuit board with waterproof structure for data information collection. BACKGROUND
[0002] Circuit board, also known as printed circuit board (PCB), is an indispensable component in electronic equipment, mainly used for supporting electronic components and providing electrical connection. Circuit board can be made by electronic printing, so it is called "printed" circuit board. It is the support of electronic components, which ensures the electrical connection between components.
[0003] Circuit board is widely used today, but it also has some disadvantages, especially afraid of water. Once the unprotected circuit board is wet, it will cause a short circuit and burn immediately. Most of the waterproof treatment of circuit boards today is sealed by resin, but this method will make it very difficult to remove the circuit board later, and the resin residue on it is very difficult to remove, and once the water leaks, it cannot prevent the circuit board from breaking. SUMMARY
[0004] The utility model provides a kind of circuit board with waterproof structure for data information collection, to solve the problem that most of the waterproof treatment of circuit board today is sealed by resin, but this method will make it very difficult to remove the circuit board later, and the resin residue on it is very difficult to remove.
[0005] The utility model is realized as follows: a kind of circuit board with waterproof structure for data information collection, including the rectangular protective frame formed by two mutually symmetrical rectangular half frame bodies, the inside of two half frame bodies is sequentially fixedly connected with rectangular inner frame and intermediate frame from inside to outside, two inner frames and two intermediate frames divide the inner cavity of protective frame and sequentially form outer cavity, intermediate cavity and inner cavity from outside to inside;
[0006] The inside of the inner cavity is provided with circuit board main body and field effect tube, the top end and the bottom end of the intermediate cavity are fixedly connected with annular copper coil, two annular copper coils do not contact each other and are electrically connected with field effect tube and circuit board main body by wire to form protection circuit.
[0007] Preferably, the front end of the protective frame is communicated with a rectangular plug-in frame, the inside of the plug-in frame is fixedly connected with a plug-in head, and the plug-in head is electrically connected with the field effect tube by wire.
[0008] Preferably, the inside of the outer cavity is filled with resin.
[0009] Preferably, the top end and the bottom end of the inside of the inner cavity are fixedly connected with a plurality of supporting pads.
[0010] Preferably, the outer surface of the two half frame bodies is provided with a flow guide groove.
[0011] Preferably, the half frame body, the inner frame, the intermediate frame and the plurality of support pads are integrally molded. Advantages
[0012] Compared with the prior art, the utility model has the advantages that: a kind of data information acquisition with waterproof structure's circuit board of the utility model, by being provided with field effect tube, the device when using, the outer cavity in the inside of protective frame is filled with resin, by its first heavy protection to the most inside circuit board, when its lose effect, if water enters the inside of the device, it will enter the intermediate cavity before entering the inner cavity, when water enters the intermediate cavity, since water conducts electricity, it will cause two mutually non-contact annular copper coils to be in contact state, then trigger field effect tube to cut off the power supply of entire circuit, before water and circuit board contact, it stops to supply power to circuit board, to prevent circuit board open circuit, and it plays the role of two heavy protections to circuit board. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is cross section structure schematic diagram of the utility model;
[0014] Fig. 2 It is cross section structure schematic diagram of the utility model;
[0015] Fig. 3 It is overall external view structure schematic diagram of the utility model.
[0016] In the drawing: 1-half frame body, 2-intermediate frame, 3-inner frame, 4-outer cavity, 5-intermediate cavity, 6-inner cavity, 7-circuit board main body, 8-support pad, 9-field effect tube, 10-annular copper coil, 11-resin, 12-plug-in frame, 13-plug, 14-flow guide groove. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with drawings and examples.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.
[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: including by two mutually symmetrical rectangular half frame bodies 1 and is formed rectangular protective frame, two half frame bodies 1 by inside to outside sequentially fixed connection has rectangular inner frame 3 and intermediate frame 2, two inner frames 3 and two intermediate frames 2 will protective frame's inner cavity divide by outside to inside sequentially form outer cavity 4, intermediate cavity 5 and inner cavity 6;
[0019] The inner cavity 6 is internally provided with a circuit board body 7 and a field effect tube 9, the top end and the bottom end of the inner cavity 5 are fixedly connected with annular copper coils 10, the two annular copper coils 10 do not contact each other and are electrically connected with the field effect tube 9 and the circuit board body 7 through wires to form a protection circuit.
[0020] The front end of the protection frame is communicated with a rectangular plug-in frame 12, the plug-in frame 12 is fixedly connected with a plug-in head 13, and the plug-in head 13 is electrically connected with the field effect tube 9 through wires.
[0021] The inner cavity 4 of the protection frame is filled with resin 11.
[0022] In the embodiment, the outer cavity 4 in the protection frame is filled with resin 11 when the device is in use, which provides the first protection for the innermost circuit board body 7, and when water enters the inside of the device, it enters the middle cavity 5 before entering the inner cavity 6, and when the water enters the middle cavity 5, the two annular copper coils 10 in contact state are caused to be in contact state due to the conductivity of water, and then the field effect tube 9 is triggered to cut off the power supply of the entire circuit, so that the power supply to the circuit board body 7 is stopped before the water contacts the circuit board body 7, thereby preventing the circuit board body 7 from being broken, and the circuit board body 7 is protected twice.
[0023] The plug-in frame 12 and the plug-in head 13 are used to be connected with a power supply system and the like.
[0024] The two half frame bodies 1 are bonded by glue and then reinforced by screws.
[0025] Further, the top end and the bottom end of the inner cavity 6 are fixedly connected with a plurality of support pads 8.
[0026] In the embodiment, the support pads 8 fix the positions of the circuit board body 7 and the field effect tube 9, preventing them from moving randomly in the inner cavity 6.
[0027] Further, the outer surfaces of the two half frame bodies 1 are provided with flow guide grooves 14.
[0028] In the embodiment, the flow guide grooves 14 have the effect of guiding liquid, preventing the liquid from staying on the surface of the device for a long time to erode the device.
[0029] Further, the half frame body 1, the inner frame 3, the middle frame 2 and the plurality of support pads 8 are integrally molded.
[0030] In the embodiment, the half frame body 1, the inner frame 3, the middle frame 2 and the plurality of support pads 8 are integrally molded to ensure that there is no gap in the structure, thereby improving the waterproof performance of the device.
[0031] The utility model discloses a working principle and use flow: after the utility model installs, the device is filled with resin 11 in the outer cavity 4 of the protection frame inside when using, and the first heavy protection is carried out to the innermost circuit board main body 7 through it, if there is moisture to enter the inside of the device after it loses the effect, will enter the intermediate cavity 5 before entering the inner cavity 6, when water enters the intermediate cavity 5, because water conducts electricity, will lead two mutually not contact annular copper coil 10 to be in the contact state, then trigger field effect tube 9 and cut off the power supply of whole circuit, before water and circuit board main body 7 contact, stop the power supply of circuit board main body 7, prevent the circuit board main body 7 from breaking, and the circuit board main body 7 plays the role of two heavy protections.
[0032] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement and improvement etc. that are made in the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A circuit board having a waterproof structure for data information collection, characterized by: The application relates to a protective frame formed by combining two mutually symmetrical rectangular half frames (1), the inside of the two half frames (1) is sequentially fixedly connected with a rectangular inner frame (3) and a middle frame (2) from inside to outside, two inner frames (3) and two middle frames (2) divide the inner cavity of the protective frame to sequentially form an outer cavity (4), a middle cavity (5) and an inner cavity (6) from outside to inside. The inner cavity (6) is internally provided with a circuit board main body (7) and a field effect tube (9), the top end and the bottom end of the middle cavity (5) are fixedly connected with annular copper coils (10), the two annular copper coils (10) do not contact each other and are electrically connected with the field effect tube (9) and the circuit board main body (7) through wires to form a protection circuit.
2. The circuit board with a waterproof structure for data information collection according to claim 1, characterized in that: The front end of the protective frame is communicated with a rectangular plug-in frame (12), the plug-in frame (12) is internally fixedly connected with a plug-in head (13), and the plug-in head (13) is electrically connected with the field effect tube (9) through wires.
3. The circuit board with a waterproof structure for data information collection according to claim 1, characterized in that: The inner cavity (4) is internally filled with resin (11).
4. The circuit board with a waterproof structure for data information collection according to claim 1, wherein: The top end and the bottom end of the inner cavity (6) are fixedly connected with a plurality of supporting pad blocks (8).
5. The circuit board with a waterproof structure for data information collection according to claim 1, wherein: the waterproof structure is formed by a waterproof material which is coated on the surface of the circuit board. The outer surfaces of the two half frames (1) are both provided with flow guide grooves (14).
6. The circuit board with a waterproof structure for data information collection according to claim 4, wherein: The half frame (1), the inner frame (3), the middle frame (2) and the plurality of supporting pad blocks (8) are integrally die-molded.