A waterproof circuit board

Abstract

This utility model relates to the field of circuit board technology and discloses a waterproof circuit board, including a circuit board body and a terminal block mounted on its surface, and further including: a fixing frame fixed below the surface of the terminal block, the surface of the terminal block being provided with a protective frame that can compensate for the movement and shaking of the terminal block by means of a material; a connecting groove opened on the surface of the protective frame, and a sealing strip that further improves the sealing performance by means of a material fixedly connected to the inner wall of the protective frame; this utility model, with the cooperation of the fixing frame, can increase the stability of the terminal block, and with the cooperation of the support frame and the baffle plate, can effectively fix the protective frame, so that the protective frame and the sealing strip can cooperate to effectively compensate for the deformation and shaking of the terminal block, thereby reducing the gap between the terminal block and the protective frame, thereby improving the waterproof effect of the circuit board, and solving the problems of poor waterproof effect and poor applicability of existing circuit boards.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a waterproof circuit board. Background Technology

[0002] Circuit boards are the substrates of electronic devices, used for mechanical support and electrical connection of electronic components. Their core function is to connect components (such as resistors, capacitors, chips, etc.) into a complete circuit system according to circuit design requirements through pre-designed conductive lines (copper foil layers) and insulating substrates. Water or humid environments can cause unexpected current paths (leakage or short circuits) to form between the conductive lines on the circuit board, which may damage components or burn out the circuit. Therefore, some circuit boards are coated with adhesive to improve their waterproof effect.

[0003] However, some circuit boards have connectors, which need to be plugged in and out for a long time after being coated with adhesive. During the plugging and unplugging process, the connectors are prone to deformation or shaking. After the adhesive hardens, the deformation and rebound effect is poor, which leads to the gradual increase of the gap between the connector and the adhesive. This allows water to easily come into contact with the circuit board through the gap, thereby reducing the waterproof effect of the circuit board. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof circuit board to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof circuit board, comprising a circuit board body and a terminal block mounted on its surface, and further comprising:

[0006] A mounting bracket fixed below the surface of the terminal block, wherein the surface of the terminal block is provided with a protective frame that can compensate for the movement and shaking of the terminal block by means of a material.

[0007] A connecting groove is formed on the surface of the protective frame. A sealing strip with improved sealing performance is fixedly connected to the inner wall of the protective frame. A support frame is fixedly connected to the surface of the protective frame. A baffle plate is fixedly connected to the surface of the support frame.

[0008] Preferably, the number of fixing brackets is several and they are made of insulating material, and the bottom of the fixing brackets is connected to the surface of the circuit board body.

[0009] Preferably, the protective frame is designed as a flexible, waterproof rubber structure and is connected to the surface of the terminal block via adhesive.

[0010] Preferably, the number of sealing strips is two, both are made of silicone, and their surfaces are connected to the surface of the terminal block by adhesive.

[0011] Preferably, the surface of the support frame is fixed to the circuit board body, and the support frame is made of insulating material.

[0012] Preferably, the number of the baffles is several, and they are evenly distributed on the surface of the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the cooperation of the fixing frame, can increase the stability of the terminal block, and through the cooperation of the support frame and the baffle plate, can effectively fix the protective frame. This allows the protective frame and the sealing strip to effectively compensate for the deformation and shaking of the terminal block, thereby reducing the gap between the terminal block and the protective frame, thus improving the waterproof effect of the circuit board and effectively improving its applicability. It solves the problems of poor waterproof effect and poor applicability of existing circuit boards. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a partial three-dimensional cross-sectional structural diagram from another perspective of the present invention.

[0019] In the diagram: 1. Circuit board body; 2. Terminal block; 3. Fixing frame; 4. Protective frame; 5. Connecting groove; 6. Sealing strip; 7. Support frame; 8. Blocking plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] Please see Figure 1-4As shown, a waterproof circuit board includes a circuit board body 1. The circuit board body 1 can connect components into a complete circuit system according to circuit design requirements. A terminal block 2 is mounted on the surface of the circuit board body 1. The terminal block 2 is used in conjunction with the circuit board body 1 and is used to contact an external power supply head to transmit power. A fixing bracket 3 is fixedly connected to the lower surface of the terminal block 2. There are several fixing brackets 3, which are made of insulating material. The bottom of the fixing bracket 3 is connected to the surface of the circuit board body 1. Under this action, the terminal block 2 can be supported by the fixing bracket 3, thereby making its connection with the circuit board body 1 more stable and reducing the weight of the terminal block. 2. Due to the potential for positional displacement after prolonged stress, the surface of the terminal block 2 is equipped with a protective frame 4. The protective frame 4 is made of flexible, waterproof rubber and is connected to the surface of the terminal block 2 by adhesive. The surface of the protective frame 4 has a connecting groove 5, and the inner wall of the connecting groove 5 is connected to the surface of the fixing frame 3 by adhesive. Under this action, the protective frame 4 can be connected to the terminal block 2 through the cooperation of the connecting groove 5. This ensures that even if the terminal block 2 undergoes slight deformation and positional displacement during long-term insertion and removal, the protective frame 4 can still maintain a close fit with the terminal block 2 due to its own characteristics. This reduces the possibility of positional displacement of the terminal block 2 after applying adhesive, which could affect the waterproof effect.

[0022] Two sealing strips 6 are fixedly connected to the inner wall of the protective frame 4. These sealing strips are made of silicone and their surfaces are bonded to the surface of the terminal block 2 with adhesive. The material and number of sealing strips 6 allow for effective deformation, reducing the gap between the protective frame 4 and the terminal block 2. This reduces the likelihood of water entering the circuit board body 1 through the gap. A support frame 7 is fixedly connected to the surface of the protective frame 4, providing stability. The surface of the support frame 7 is fixed to the circuit board body 1. The insulating material of the support frame 7 allows for water penetration. Under the influence of quality and position, it is stably connected to the surface of the circuit board body 1, preventing it from moving randomly. A number of baffle plates 8 are fixedly connected to the surface of the support frame 7 and are evenly distributed on the surface of the support frame 7. Under this action, after the circuit board is coated with glue, the support frame 7 can fully connect with the glue, thereby fixing the protective frame 4. In addition, with the cooperation of the baffle plates 8, the position of the support frame 7 can be blocked by the glue after the glue is applied, so that the support frame 7 will not easily shift its position, effectively improving the accuracy of the position of the support frame 7 and preventing its position from being unstable and easily moving with the terminal block 2.

[0023] It is worth noting that the technical features such as the circuit board body 1 and the terminal block 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0024] Working principle: First, the surface of the circuit board is coated with adhesive to waterproof it. When the circuit board uses the connector 2, the connector 2 may experience slight displacement or vibration. The protective frame 4 can effectively deform to compensate for the displacement and vibration, thereby reducing the formation of gaps. Furthermore, the sealing strip 6 can further enhance the waterproof effect. With the cooperation of the support frame 7 and the baffle plate 8, the surface of the protective frame 4 is relatively stable, preventing it from easily moving as a whole, thus effectively improving the waterproof effect of the circuit board.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A waterproof circuit board comprising a circuit board body (1) and a terminal block (2) mounted on a surface thereof, characterized in that, Also includes: A fixing frame (3) is fixed below the surface of the terminal block (2), and the surface of the terminal block (2) is provided with a protective frame (4) that can compensate for the movement and shaking of the terminal block (2) by means of the material; A connecting groove (5) is opened on the surface of the protective frame (4). A sealing strip (6) with improved sealing performance is fixedly connected to the inner wall of the protective frame (4). A support frame (7) is fixedly connected to the surface of the protective frame (4). A baffle plate (8) is fixedly connected to the surface of the support frame (7).

2. A waterproof circuit board according to claim 1, wherein: The number of fixing brackets (3) is several and they are made of insulating material. The bottom of the fixing brackets (3) is connected to the surface of the circuit board body (1).

3. A waterproof circuit board according to claim 1, wherein: The protective frame (4) is designed with flexible, waterproof rubber and is connected to the surface of the connector (2) by adhesive.

4. The waterproof circuit board of claim 1, wherein: The number of sealing strips (6) is two, and they are made of silicone. Their surfaces are connected to the surface of the terminal block (2) by adhesive.

5. The waterproof circuit board of claim 1, wherein: The surface of the support frame (7) is fixed to the circuit board body (1), and the support frame (7) is made of insulating material.

6. The waterproof circuit board of claim 1, wherein: The number of the baffles (8) is several, and they are evenly distributed on the surface of the support frame (7).

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