Relay board group adapted to marine atmospheric environment

Abstract

The utility model discloses a relay board group adapted to a marine atmospheric environment, which comprises a PCB (printed circuit board), a pair of quadruple connectors is mounted on the upper wall surface of the PCB, and eight pairs of fully-sealed relays are mounted at one end, close to the pair of quadruple connectors, of the upper wall surface of the PCB. Four pairs of eight-connection connectors are installed on the upper wall face of the PCB and located at the ends, close to the two side wall faces, of the upper wall face of the PCB respectively, electrical elements are integrated on a relay board set which is independently designed, a fully-sealed relay is welded to the board, two sets of normally-open contacts and two sets of normally-closed contacts are arranged, and the requirements of most working conditions are met. The input end, corresponding to each relay, of the relay board is provided with an LED indicating lamp used for indicating the working state, and each LED is connected with a chip resistor in series for overvoltage protection, so that the LEDs are prevented from being burnt out. And the output end of each relay on the relay board is reversely welded with a diode, so that the relays can be protected from being burnt by the induction current of the inductive load.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically a relay board assembly adapted to the marine atmospheric environment. Background Technology

[0002] Modern ships require electrical systems to achieve automation and remote operation control. Relays are essential for these functions. Currently, most relays are plastic-cased. They are installed by attaching a mounting base and then clipping them onto a standard DIN rail.

[0003] However, ships operate under marine atmospheric conditions for extended periods, where the working environment is humid and contains salt spray, mold, and other contaminants, making it impossible to guarantee the lifespan of ordinary relays. Furthermore, ships experience harsh conditions such as turbulence, impacts, and vibrations during navigation. Rail-mounted relays are prone to detachment. To address these issues, a relay board assembly adapted to the marine atmospheric environment was designed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a relay board assembly adapted to the marine atmospheric environment, solving the problem that existing ordinary relays cannot guarantee their service life. Furthermore, ships experience harsh conditions such as turbulence, impacts, and vibrations during navigation. This also addresses the technical problem of rail-mounted relays being prone to detachment.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a relay board assembly adapted to the marine atmospheric environment, comprising a PCB board, wherein a pair of four-connector plugs are installed on the upper wall of the PCB board, eight pairs of fully sealed relays are installed on the upper wall of the PCB board near the pair of four-connector plugs, four pairs of eight-connector plugs are installed on the upper wall of the PCB board and the four pairs of eight-connector plugs are respectively located on the upper wall of the PCB board near the two side walls, and a number of diodes, a number of LEDs and a number of surface mount resistors are respectively installed on the upper wall of the PCB board near the position between the fully sealed relays and the eight-connector plugs.

[0006] Preferably, several of the LEDs and surface mount resistors are sequentially and alternately mounted on the wall surface of the PCB board.

[0007] Preferably, the PCB board has a double-layer circuit printing.

[0008] Preferably, the four-connector plug-in is the input interface of the drive circuit, one side of the eight-connector plug-in is the drive signal input interface of the DC diode and the four-connector plug-in, and the other side of the eight-connector plug-in is the load output interface.

[0009] Preferably, the eight connectors have textual indications at corresponding positions to prevent mis-insertion. Beneficial effects

[0010] This invention provides a relay board assembly adapted to marine atmospheric environments. The assembly integrates electrical components onto a self-designed relay board. Fully sealed relays are soldered onto the board, with two sets of normally open and two sets of normally closed contacts to meet the needs of most operating conditions. Each relay's input terminal has an LED indicator to show its operating status. Each LED is connected in series with a surface-mount resistor for overvoltage protection to prevent LED burnout. The output terminals of each relay on the board are reverse-soldered diodes to protect the relays from burnout by induced current from inductive loads. Attached Figure Description

[0011] Figure 1 This is an isometric structural schematic diagram of a relay board assembly adapted to the marine atmospheric environment described in this utility model.

[0012] Figure 2 This is a top view structural diagram of a relay board assembly adapted to the marine atmospheric environment according to the present invention.

[0013] In the diagram: 1. Eight-connector plug-in; 2. Diode; 3. Fully sealed relay; 4. Four-connector plug-in; 5. PCB board; 6. LED light; 7. Surface mount resistor. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-2 This utility model provides a technical solution: a relay board assembly adapted to the marine atmospheric environment, including a PCB board 5, a pair of four-connector plugs 4 installed on the upper wall of the PCB board 5, eight pairs of fully sealed relays 3 installed on the upper wall of the PCB board 5 near the pair of four-connector plugs 4, four pairs of eight-connector plugs 1 installed on the upper wall of the PCB board 5, and the four pairs of eight-connector plugs 1 are respectively located on the upper wall of the PCB board 5 near the two side walls, and a number of diodes 2, a number of LEDs 6, and a number of surface mount resistors 7 are respectively installed on the upper wall of the PCB board 5 near the position between the fully sealed relays 3 and the eight-connector plugs 1.

[0016] The relay board assembly consists of main components including a PCB board 5, a fully sealed relay 3, diodes 2, four-way connectors 4, eight-way connectors 1, LEDs 6, and surface-mount resistors 7. The PCB board 5 features double-layer circuit printing. The four-way connector 4 serves as the input interface for the drive circuit. One side of the eight-way connector 1 is the DC 24V drive signal input interface, and the other side is the load output interface. Textual indicators are provided at the corresponding locations on the eight-way connector 1 to prevent incorrect insertion. When a drive signal is input, the coil of the corresponding fully sealed relay 3 is energized, and its normally open contacts close, controlling the on / off state of the load circuit.

[0017] In this embodiment, several LEDs 6 and surface mount resistors 7 are sequentially and alternately mounted on the upper wall of the PCB board 5.

[0018] In this embodiment, the PCB board 5 is further configured to have a double-layer circuit printing.

[0019] In this embodiment, the four-connector plug 4 is the input interface of the drive circuit, one side of the eight-connector plug 1 is the input interface of the drive signal of the DC diode 2 and the four-connector plug 4, and the other side of the eight-connector plug 1 is the load output interface.

[0020] In this embodiment, the corresponding positions of the eight-connector plug-in 1 are marked with text to prevent mis-plugging.

[0021] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0022] Example: The relay board assembly consists of a PCB board 5, a fully sealed relay 3, a diode 2, a four-way connector 4, an eight-way connector 1, an LED 6, and surface mount resistors 7. The PCB board 5 features double-layer circuit printing. The four-way connector 4 serves as the input interface for the drive circuit. One side of the eight-way connector 1 is the DC 24V drive signal input interface, and the other side is the load output interface. Textual indicators are provided at the corresponding locations on the eight-way connector 1 to prevent incorrect insertion. When a drive signal is input, the coil of the corresponding fully sealed relay 3 is energized, and its normally open contacts close, controlling the on / off state of the load circuit.

[0023] After the relay board passes the functional test, it is coated with conformal coating to further enhance the product's adaptability to the marine atmospheric environment.

[0024] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A relay board assembly adapted to marine atmospheric environment, comprising a PCB board (5), characterized in that, A pair of four-connector plugs (4) are installed on the upper wall of the PCB board (5). Eight pairs of fully sealed relays (3) are installed on the upper wall of the PCB board (5) near the pair of four-connector plugs (4). Four pairs of eight-connector plugs (1) are installed on the upper wall of the PCB board (5), and the four pairs of eight-connector plugs (1) are respectively located on the upper wall of the PCB board (5) near the two side walls. Several diodes (2), several LEDs (6), and several surface mount resistors (7) are respectively installed on the upper wall of the PCB board (5) near the position between the fully sealed relays (3) and the eight-connector plugs (1).

2. A relay board assembly adapted to a marine atmospheric environment according to claim 1, characterized in that... Several LED lights (6) and chip resistors (7) are sequentially and alternately mounted on the upper wall of the PCB board (5).

3. A relay board assembly adapted to a marine atmospheric environment according to claim 1, characterized in that... The PCB board (5) is a double-layer circuit printed circuit.

4. A relay board assembly adapted to a marine atmospheric environment according to claim 1, characterized in that... The four-connector plug (4) is the input interface of the drive circuit. One side of the eight-connector plug (1) is the input interface of the drive signal of the DC diode (2) and the four-connector plug (4). The other side of the eight-connector plug (1) is the output interface of the load.

5. A relay board assembly adapted to a marine atmospheric environment according to claim 1, characterized in that... The eight connectors (1) have textual instructions at the corresponding positions to prevent mis-insertion.

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