A circuit board assembly

By introducing flexible hook positioning, connector sealing connection, and sealing components into the circuit board assembly, the problems of inconvenient plug insertion and removal and insufficient sealing are solved, achieving convenient operation and efficient waterproof effect.

CN224319589UActive Publication Date: 2026-06-02MEIZHOU YAOCHAO ELECTRONICS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MEIZHOU YAOCHAO ELECTRONICS CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The external plugs on the existing circuit boards are inconvenient to plug and unplug and have poor sealing, making them prone to short circuits and damage, especially in humid environments.

Method used

A circuit board assembly was designed, which uses an elastic hook to position the external plug, combines the connector base with the circuit board for a sealed connection, uses waterproof adhesive and locking bolts for fixation, and achieves triple sealing through the sealing assembly.

Benefits of technology

It enables convenient plugging and unplugging of external plugs and stable connection, improves the waterproof effect of the circuit board, enhances the sealing performance, and avoids the risk of short circuit in humid environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224319589U_ABST
    Figure CN224319589U_ABST
Patent Text Reader

Abstract

This utility model provides a circuit board assembly, belonging to the field of circuit board technology, including a circuit board body, a connector, and an external plug. The connector is fixedly installed on the left side of the upper surface of the circuit board body, and the external plug is inserted into the connector. Elastic hooks are fixedly installed on both sides of the connector. When the external plug is fully inserted into the connector, the elastic hooks hook onto the external plug to position it. This utility model, by providing elastic hooks, ensures the stability of the external plug after it is inserted into the connector. When it is necessary to remove the external plug, simply move the two elastic hooks away from the external plug to prevent them from hooking onto the external plug, thus enabling easy insertion and removal of the external plug and increasing its practicality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a circuit board assembly. Background Technology

[0002] Circuit board assemblies typically refer to the components of a printed circuit board (PCB), including the insulating substrate, conductive lines, and surface-mount components. These components together constitute the basic structure and function of a circuit board.

[0003] Circuit boards typically have external connectors for connecting other circuit components. For example, a computer motherboard is connected to the power supply via wires, usually using a plug-in connection. Circuit boards are also manufactured with waterproofing processes, such as applying a conformal coating to the surface, which improves their waterproof rating and reduces the risk of short circuits caused by water or humid air. However, the connections between circuit boards and other electrical devices are generally plug-in connections. Plug-in connections typically have a lower waterproof rating and can cause short circuits when exposed to humid air or water, leading to damage to both the circuit board and the external circuitry.

[0004] For example, in the prior art, the patent with authorization announcement number CN222720743U discloses a waterproof circuit board assembly. This device is equipped with a mounting block, and the mounting block has pins inside. When the mounting block is connected to an external plug, waterproof adhesive can be applied to the inside of the mounting block. The waterproof adhesive can not only improve the firmness between the mounting block and the external plug, but also improve the sealing between the mounting block and the external plug, thereby improving the waterproof effect between the mounting block and the external plug.

[0005] The external connector of this device is connected to the mounting point by applying waterproof adhesive inside the mounting block. The mounting block is fixed to the base with screws, which means that when the external connector needs to be plugged in or unplugged, the screws need to be loosened to remove the external connector and the mounting block from the base together, which is inconvenient. Especially when the circuit board is installed in the chassis, the screws need to be loosened with a screwdriver, and the chassis restricts the screwdriver's movement, affecting the plugging and unplugging of the circuit board's external connector and impacting its practicality. Therefore, a circuit board assembly is designed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a circuit board assembly.

[0007] The technical problem to be solved by this utility model is to provide a circuit board assembly that solves the problems of inconvenient plugging and unplugging and poor sealing of external plugs on circuit boards in the prior art.

[0008] This utility model provides a circuit board assembly, including a circuit board body, a connector, and an external plug. The connector is fixedly installed on the left side of the upper surface of the circuit board body, and the external plug is inserted into the connector. Elastic hooks are fixedly installed on both the left and right sides of the connector. When the external plug is fully inserted into the connector, the elastic hooks hook onto the external plug to position it. The contact point between the connector and the circuit board body is sealed with adhesive. The connector and the external plug are provided with sealing components to seal the external plug after it is inserted into the connector.

[0009] Preferably, the outer surface of the circuit board body is provided with multiple insertion holes, and internal bolt holes are provided on both the left and right sides of the insertion holes. Multiple insertion sleeves are provided through the bottom surface of the connector, and locking bolts are threaded to both the left and right ends of the connector.

[0010] Preferably, the plug sleeve matches the plug hole, and the locking bolt matches the bolt hole, and when the plug sleeve is inserted into the plug hole, the locking bolt is directly opposite the bolt hole.

[0011] Preferably, the plug sleeve is made of copper material with good conductivity, and the plug sleeve is electrically connected to the plug hole, which is electrically connected to the electronic components on the circuit board body.

[0012] Preferably, the sealing assembly includes a connecting groove formed on the upper surface of the connecting seat, and a rectangular slot formed on the top side of the connecting groove. The external plug includes a sealing top plate, a plug block, a plug post, and a frame-shaped sealing ring. The bottom of the sealing top plate is fixedly provided with a plug block, the bottom of the plug block is fixedly provided with a plug post, and a frame-shaped sealing ring is sleeved on the outer surface of the plug block.

[0013] Preferably, the plug block matches the connecting groove, and when the plug block is fully inserted into the connecting groove, the plug post is inserted into the plug sleeve.

[0014] Preferably, the diameter of the plug is equal to the diameter of the central through hole of the plug sleeve, and the plug is made of copper. The plug is electrically connected to the data line on the external plug.

[0015] Preferably, the frame-shaped sealing ring matches the rectangular slot, and when the plug block is fully inserted into the connecting slot, the frame-shaped sealing ring is embedded in the rectangular slot.

[0016] Preferably, the side length of the sealing top plate is the same as the side length of the upper surface of the connecting seat, and when the plug block is fully inserted into the connecting groove, the bottom surface of the sealing top plate is in close contact with the upper surface of the connecting seat.

[0017] Preferably, when the sealing top plate is attached to the upper surface of the connecting seat, the elastic hook is hooked onto the upper surface of the sealing top plate.

[0018] Compared with the prior art, this utility model has at least the following beneficial effects:

[0019] 1. This utility model features elastic hooks. After the external plug is inserted into the connector, the elastic hooks hook onto the external plug, ensuring the stability of the external plug after insertion. When it is necessary to remove the external plug, simply move the two elastic hooks away from the external plug to prevent them from hooking onto the external plug, thus enabling the external plug to be inserted or removed, increasing its practicality.

[0020] 2. This utility model features a connector. When connecting the connector to the circuit board body, waterproof adhesive is applied to the bottom of the connector, and then the plug sleeve on the connector is inserted into the plug hole to achieve an electrical connection between the connector and the plug hole. The connector is then fixedly installed on the circuit board body by tightening the screw thread in the bolt hole, ensuring the stability of the connection between the connector and the circuit board body. The waterproof adhesive also ensures the sealing between the connector and the circuit board body, improving the waterproof effect.

[0021] 3. This utility model features a connector and an external plug. When the external plug is inserted into the connector, the plug block on the external plug inserts into the connecting groove, ensuring the sealing of the connection between the external plug and the connector. Furthermore, the frame-shaped sealing ring on the external plug is embedded in the rectangular slot, further ensuring the sealing of the connection between the external plug and the connector. The sealing top plate 301 is tightly attached to the upper surface of the connector, further ensuring the sealing of the connection between the external plug and the connector. This triple sealing provides excellent waterproofing. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the circuit board body of this utility model.

[0025] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A.

[0026] Figure 4 This is a three-dimensional structural diagram of the connector of this utility model.

[0027] Figure 5 This is a bottom view of the three-dimensional structure of the connector of this utility model.

[0028] Figure 6 This is a three-dimensional structural diagram of the external plug of this utility model.

[0029] Figure 7 This is a three-dimensional structural diagram of the external plug of this utility model, viewed from below.

[0030] [Figure Labels]

[0031] 1. Circuit board body; 101. Plug hole; 102. Bolt hole; 2. Connector; 201. Connecting groove; 202. Plug sleeve; 203. Locking bolt; 204. Rectangular slot; 3. External plug; 301. Sealing top plate; 302. Plug block; 303. Plug post; 304. Frame-shaped sealing ring; 4. Flexible hook. Detailed Implementation

[0032] Example:

[0033] like Figures 1-6 As shown, an embodiment of this utility model provides a circuit board assembly, including a circuit board body 1, a connector 2, and an external plug 3. The connector 2 is fixedly installed on the left side of the upper surface of the circuit board body 1, and the external plug 3 is inserted into the connector 2. Elastic hooks 4 are fixedly installed on both the left and right sides of the connector 2. When the external plug 3 is fully inserted into the connector 2, the elastic hooks 4 hook onto the external plug 3 to position the external plug 3. The contact point between the connector 2 and the circuit board body 1 is sealed with adhesive. The connector 2 and the external plug 3 are provided with sealing components to seal the external plug 3 after it is inserted into the connector 2.

[0034] By providing elastic hooks 4, after the external plug 3 is inserted into the connector 2, the elastic hooks 4 hook onto the external plug 3, ensuring the stability of the external plug 3 after insertion. When it is necessary to remove the external plug, simply move the two elastic hooks 4 away from the side of the external plug 3 so that the elastic hooks 4 will not hook onto the external plug 3, thus enabling the external plug 3 to be plugged and unplugged, increasing its practicality.

[0035] In this embodiment, the outer surface of the circuit board body 1 is provided with multiple insertion holes 101, and the left and right sides of the insertion holes 101 are provided with internal bolt holes 102. The bottom surface of the connector 2 is provided with multiple insertion sleeves 202, and the left and right ends of the connector 2 are threaded with locking bolts 203.

[0036] In this embodiment, the plug sleeve 202 matches the plug hole 101, and the locking bolt 203 matches the bolt hole 102. When the plug sleeve 202 is inserted into the plug hole 101, the locking bolt 203 is directly opposite the bolt hole 102.

[0037] In this embodiment, the plug sleeve 202 is made of copper material with good conductivity, and the plug sleeve 202 is electrically connected to the plug hole 101, which is electrically connected to the electronic components on the circuit board body 1.

[0038] By providing a connector 2, when connecting the connector 2 to the circuit board body 1, waterproof adhesive is applied to the bottom of the connector 2, and then the plug sleeve 202 on the connector 2 is inserted into the plug hole 101 to achieve an electrical connection between the connector 2 and the plug hole 101. The connector 2 is then fixedly installed on the circuit board body 1 by threading the locking bolt 203 into the bolt hole 102, ensuring the stability of the connection between the connector 2 and the circuit board body 1. The waterproof adhesive also ensures the sealing between the connector 2 and the circuit board body 1, improving the waterproof effect.

[0039] In this embodiment, the sealing assembly includes a connecting groove 201 formed on the upper surface of the connecting seat 2, and a rectangular slot 204 formed on the top side of the connecting groove 201. The external plug 3 includes a sealing top plate 301, a plug block 302, a plug post 303, and a frame-shaped sealing ring 304. The bottom of the sealing top plate 301 is fixedly provided with the plug block 302, the bottom of the plug block 302 is fixedly provided with the plug post 303, and the frame-shaped sealing ring 304 is sleeved on the outer surface of the plug block 302.

[0040] In this embodiment, the plug block 302 matches the connecting groove 201, and when the plug block 302 is fully inserted into the connecting groove 201, the plug post 303 is inserted into the plug sleeve 202.

[0041] In this embodiment, the diameter of the plug post 303 is equal to the diameter of the central through hole of the plug sleeve 202, and the plug post 303 is made of copper material. The plug post 303 is electrically connected to the data line on the external plug 3.

[0042] In this embodiment, the frame-shaped sealing ring 304 matches the rectangular slot 204, and when the plug block 302 is fully inserted into the connecting slot 201, the frame-shaped sealing ring 304 is embedded in the rectangular slot 204.

[0043] In this embodiment, the side length of the sealing top plate 301 is the same as the side length of the upper surface of the connecting seat 2, and when the plug block 302 is fully inserted into the connecting groove 201, the bottom surface of the sealing top plate 301 is in close contact with the upper surface of the connecting seat 2.

[0044] With a connector 2 and an external plug 3, when the external plug 3 is inserted into the connector 2, the plug block 302 on the external plug 3 is inserted into the connecting groove 201, ensuring the sealing of the connection between the external plug 3 and the connector 2. The frame-shaped sealing ring 304 on the external plug 3 is embedded in the rectangular slot 204, further ensuring the sealing of the connection between the external plug 3 and the connector 2. The sealing top plate 301 is tightly attached to the upper surface of the connector 2, further ensuring the sealing of the connection between the external plug 3 and the connector 2. This triple sealing provides excellent waterproofing.

[0045] In this embodiment, when the sealing top plate 301 is attached to the upper surface of the connecting seat 2, the elastic hook 4 hooks onto the upper surface of the sealing top plate 301 to ensure the stability of the external plug 3 when it is inserted into the connecting seat 2.

[0046] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A circuit board assembly, characterized in that: The circuit board includes a circuit board body (1), a connector (2), and an external plug (3). The connector (2) is fixedly installed on the left side of the upper surface of the circuit board body (1). The external plug (3) is inserted into the connector (2). Elastic hooks (4) are fixedly installed on both the left and right sides of the connector (2). When the external plug (3) is fully inserted into the connector (2), the elastic hooks (4) hook onto the external plug (3) to position the external plug (3). The contact point between the connector (2) and the circuit board body (1) is sealed with adhesive. The connector (2) and the external plug (3) are provided with sealing components to seal the external plug (3) after it is inserted into the connector (2).

2. The circuit board assembly according to claim 1, characterized in that: The outer surface of the circuit board body (1) is provided with multiple plug holes (101), and the left and right sides of the plug holes (101) are provided with internal bolt holes (102). The bottom surface of the connector (2) is provided with multiple plug sleeves (202), and the left and right ends of the connector (2) are threaded with locking bolts (203).

3. The circuit board assembly according to claim 2, characterized in that: The plug sleeve (202) matches the plug hole (101), and the locking bolt (203) matches the bolt hole (102). When the plug sleeve (202) is inserted into the plug hole (101), the locking bolt (203) is facing the bolt hole (102).

4. The circuit board assembly according to claim 3, characterized in that: The plug sleeve (202) is made of copper material with good conductivity, and the plug sleeve (202) is electrically connected to the plug hole (101), and the plug hole (101) is electrically connected to the electronic components on the circuit board body (1).

5. The circuit board assembly according to claim 4, characterized in that: The sealing assembly includes a connecting groove (201) on the upper surface of the connecting seat (2), and a rectangular slot (204) is formed on the top side of the connecting groove (201). The external plug (3) includes a sealing top plate (301), a plug block (302), a plug post (303), and a frame-shaped sealing ring (304). The bottom of the sealing top plate (301) is fixedly provided with a plug block (302), the bottom of the plug block (302) is fixedly provided with a plug post (303), and a frame-shaped sealing ring (304) is sleeved on the outer surface of the plug block (302).

6. The circuit board assembly according to claim 5, characterized in that: The plug block (302) matches the connecting groove (201), and when the plug block (302) is fully inserted into the connecting groove (201), the plug post (303) is inserted into the plug sleeve (202).

7. The circuit board assembly according to claim 6, characterized in that: The diameter of the plug (303) is equal to the diameter of the central through hole of the plug sleeve (202), and the plug (303) is made of copper. The plug (303) is electrically connected to the data line on the external plug (3).

8. The circuit board assembly according to claim 7, characterized in that: The frame-shaped sealing ring (304) matches the rectangular slot (204), and when the plug block (302) is fully inserted into the connecting groove (201), the frame-shaped sealing ring (304) is embedded in the rectangular slot (204).

9. The circuit board assembly according to claim 8, characterized in that: The side length of the sealing top plate (301) is the same as the side length of the upper surface of the connecting seat (2), and when the plug block (302) is fully inserted into the connecting groove (201), the bottom surface of the sealing top plate (301) is in close contact with the upper surface of the connecting seat (2).

10. The circuit board assembly according to claim 9, characterized in that: When the sealing top plate (301) is attached to the upper surface of the connecting seat (2), the elastic hook (4) is hooked onto the upper surface of the sealing top plate (301).

Citation Information

Patent Citations

  • A waterproof circuit board assembly

    CN222720743U