Intelligent relay base

Abstract

An intelligent relay base comprises an upper shell, and an integrated circuit board card assembly is arranged in the upper shell. A cover plate is arranged on the lower side of the integrated circuit board card assembly; a guide rail buckle is arranged on the outer side of the cover plate; 16 snap springs and bolts are combined together to penetrate through the upper shell from the upper part and then are connected with the integrated circuit board card assembly; an alignment connector is arranged on the integrated circuit board card assembly; the integrated circuit board card assembly performs external input and output through a plug-in connector, monitors the voltage of a relay coil and the state of each contact in real time through a 110v power supply provided externally, and transmits signal data to the main control unit through a CAN bus; and two adjacent or non-adjacent intelligent bases carry out input transmission from the output of the previous intelligent base to the next intelligent base through the cable of the plug-in connector, so that the structure is easy to assemble, the reliability is high, the size is small, and the insulation performance is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of power system protection in a rail transit environment, and in particular relates to an intelligent relay base. Background Art

[0002] Relays are of irreplaceable importance in the rail vehicle industry. As a key component in the control circuit, relays are responsible for switching and protecting current to ensure safe and stable operation of trains. At the same time, relays can improve the level of automation of vehicles and reduce the complexity and errors of manual operations. In an emergency, relays can quickly cut off the power supply to prevent the accident from expanding and protect the lives of passengers. Relays play a vital role in the rail vehicle industry and provide a strong guarantee for the safe and efficient operation of trains.

[0003] In the prior art, the relay base has the disadvantages of relatively short service life and reliability, insufficient safety, and inability to monitor the relay status in real time. The utility model solves the problem of inability to monitor in real time. Summary of the invention

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide an intelligent relay base. The utility model is simple and quick to assemble, has a low failure rate, and can directly monitor the relay voltage, electric shock action status and relay action times through the internally installed integrated circuit module. The relay electric shock status monitoring adopts isolated input and will not affect the original vehicle circuit. The integrated circuit module is installed in the relay base housing, and has the characteristics of easy assembly structure, high reliability, small size and good insulation performance.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an intelligent relay base, including an upper shell, an integrated circuit board assembly is arranged inside the upper shell; a cover plate is arranged on the lower side of the integrated circuit board assembly; a guide rail buckle is arranged on the outer side of the cover plate; 16 retaining springs and bolts are combined to pass through the upper shell from above and are connected to the integrated circuit board assembly; a plug-in connector is arranged on the integrated circuit board assembly.

[0006] The upper shell is integrally formed of thermoplastic material.

[0007] The plug-in connector is a 6-pole micro connector.

[0008] The guide rail buckle, cover plate, integrated circuit board assembly and upper shell are fixedly connected together by self-tapping screws.

[0009] The beneficial effects of the utility model are:

[0010] The utility model aims at the technical problem of limited installation space of existing relays, and has the characteristics of more compact structure, convenient installation and maintenance, and light weight. The specific advantages are as follows:

[0011] 1) Compact structure: A set of integrated circuit board components (4) is placed in a small space, with an outer envelope size of 84 (length) x 46 (width) x 42 (height), and has data monitoring and collection functions, and can transmit data in real time.

[0012] 2) Cost saving: Both the external power supply and signal connectors use high-density small plug-in connectors, which saves the cost of the connectors themselves; the main structure consists of only two parts: the upper shell and the cover plate, which completes the functions of fixing the board, heat dissipation and ventilation, simple disassembly, and high firmness, saving manufacturing costs.

[0013] 3) Convenient and reliable wiring: Since the same bolt combination as the traditional relay is used, and the number and position identification are the same, the number of connections can be guaranteed to be consistent with the number and position of connections of the existing traditional relay, and the height of the terminal is level with the upper surface, making the actual operation easier.

[0014] 4) Easy replacement: The utility model also adopts the guide rail installation method, and is designed with assembled guide rail clips that are tightly fixed to the upper shell and cover plate by self-tapping screws, so as to ensure the vibration strength while replacing the original relay base that needs to be replaced in situ without changing any external environment.

[0015] The relay intelligent base product of this utility model is designed for rail transit vehicles and is an online monitoring device for real-time monitoring of relay status. It can monitor and store the action status of the relay in real time, monitor the voltage value of the coil, and provide a reliable basis for later vehicle status and fault analysis. The various communication functions can be interconnected with other systems, and the system status, fault and other information can be uploaded to the vehicle human-computer interaction interface through various vehicle buses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0018] In the figure: 1- retaining spring; 2- bolt assembly; 3- upper shell; 4- integrated circuit board assembly; 5- cover plate; 6- guide rail buckle; 7- self-tapping screw; 8- plug-in connector.

[0019] Figure 3 This is a series network topology diagram of the utility model. DETAILED DESCRIPTION

[0020] The structural principle and working principle of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0021] See also Figure 1-3 A smart relay base includes an upper shell 3, an integrated circuit board assembly 4 is arranged inside the upper shell 3; a cover plate 5 is arranged at the lower side of the integrated circuit board assembly 4; a guide rail buckle 6 is arranged at the outer side of the cover plate 5; 16 retaining springs 1 and a bolt assembly 2 pass through the upper shell 3 from above and are connected to the integrated circuit board assembly 4; a plug-in connector 8 is arranged on the integrated circuit board assembly 4.

[0022] The upper shell 3 is integrally formed of thermoplastic material.

[0023] The plug-in connector is a 6-pole micro connector.

[0024] The guide rail buckle 6 , cover plate 5 , integrated circuit board assembly 4 and upper shell 3 are fixedly connected together by self-tapping screws 7 .

[0025] The integrated circuit board assembly 4 has a data monitoring function, wherein the integrated circuit board assembly 4 is stably connected by soldering through 16 retaining springs 1 and a bolt assembly 2; the integrated circuit board assembly 4 is externally connected in series and inputs and outputs power signals through a high-density small plug-in connector 8.

[0026] The working principle of the utility model is:

[0027] The upper shell 3 of the smart base is fixed together with the guide rail buckle 6 by self-tapping screws 7, so that it has a guide rail installation mode.

[0028] The integrated circuit board assembly 4 of the smart base performs external input and output through the plug connector 8, wherein the integrated circuit board assembly 4 monitors the voltage of the relay coil and the state of each contact in real time through the external 110v power supply, and transmits the signal data to the main control unit through the CAN bus. The relay contact state monitoring adopts isolated input, which will not affect the original vehicle circuit. The isolation chip converts the state of each contact into a CMOS-compatible logic signal and connects it to the single-chip microcomputer through the SPI interface. The system coil voltage sampling adopts an isolated ADC sampling chip, which is completely isolated from the vehicle loop point to avoid affecting the original vehicle loop. The single-chip microcomputer sends the collected coil voltage and contact state (high level, low level) signals to the main control unit in the form of CAN data.

[0029] In actual application, the wiring trough and U-shaped rail in the power distribution cabinet are installed horizontally. After the smart base with rail installation is installed on the rail, the terminal assembly is separated at the upper and lower positions closest to the wiring trough. The key point is that when N smart bases need to be installed on the rail together, the plug connectors 8 located on the upper and lower sides of the smart base can be effectively connected. Two adjacent or non-adjacent smart bases transmit the output of the previous smart base to the input of the next smart base through the cable of the plug connector 8.

Claims

1. An intelligent relay base, comprising an upper shell (3), characterized in that: An integrated circuit board assembly (4) is arranged inside the upper shell (3); a cover plate (5) is arranged at the lower side of the integrated circuit board assembly (4); a guide rail buckle (6) is arranged at the outer side of the cover plate (5); 16 retaining springs (1) and a bolt assembly (2) pass through the upper shell (3) from above and are connected to the integrated circuit board assembly (4); and a plug-in connector (8) is arranged on the integrated circuit board assembly (4).

2. The intelligent relay base according to claim 1, characterized in that: The upper shell (3) is integrally formed of thermoplastic material.

3. The intelligent relay base according to claim 1, characterized in that: The plug-in connector is a 6-pole micro connector.

4. The intelligent relay base according to claim 1, characterized in that: The guide rail buckle (6), cover plate (5), integrated circuit board assembly (4) and upper shell (3) are fixedly connected together by self-tapping screws (7).

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