Novel relay control circuit PCB

Abstract

The utility model relates to the technical field of circuit boards, in particular to a novel relay control circuit PCB which comprises the components of a circuit board which comprises a mounting layer, a copper wire layer and a solder mask layer which are laminated in sequence; a plurality of relay bases are arranged, the plurality of relay bases are fixed on the circuit board, and the plurality of relay bases are electrically connected with one another through the copper wire layer; and the relay body is arranged on the relay base in a pluggable manner. The method has the effects of reducing the working capability requirements of wiring personnel, reducing wiring errors and improving the wiring efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of circuit boards, in particular to a novel relay control circuit PCB. BACKGROUND

[0002] In a conventional electrical automation control system, when wiring work is performed, a worker usually connects an electric wire to a wiring point of a relay. Since various components are relatively large in number in the electrical automation control system, the wiring process is complicated, and the wiring workload is large. The wiring work has a high requirement for the experience and ability of relevant personnel, and the wiring efficiency is low and errors are prone to occur. CONTENT OF THE INVENTION

[0003] The application aims to provide a novel relay control circuit PCB which can reduce the work ability requirement of a wiring personnel, reduce wiring errors and increase wiring efficiency.

[0004] The novel relay control circuit PCB provided by the application adopts the following technical scheme:

[0005] The novel relay control circuit PCB comprises:

[0006] A circuit board comprising a mounting layer, a copper wire layer and a solder mask layer which are sequentially laminated;

[0007] A plurality of relay bases are arranged, the plurality of relay bases are fixed on the circuit board, and the plurality of relay bases are electrically connected to each other through the copper wire layer.

[0008] A relay body is pluggably arranged on the relay base.

[0009] Optionally, a wiring terminal is further arranged, the wiring terminal is fixedly connected to the circuit board and electrically connected to the relay body.

[0010] Optionally, the wiring terminal is a three-layer PCB wiring terminal.

[0011] Optionally, the solder mask layer is provided with a tinning groove, a solder layer is arranged in the tinning groove, and the solder layer is laminated with and electrically connected to the copper wire layer.

[0012] Optionally, the solder layer has a width of 1mm to 2mm.

[0013] Optionally, the copper wire layer has a width of 2mm to 3mm.

[0014] The application realizes the connection between the relay base and the relay base by solidifying the connecting wire on the circuit board, completes and solidifies the control logic on the circuit board, reduces the wiring workload, and the wiring personnel only needs to connect the external load when wiring, which greatly reduces the workload, and since the wiring terminal is arranged, the external load is connected with the wiring terminal one by one when the external load is connected, which further reduces the requirement for the wiring personnel's ability and reduces the possibility of wrong wiring or missed wiring during the wiring process. Moreover, the wiring terminal adopts a three-layer PCB wiring terminal, and each three-layer PCB wiring terminal has three layers, that is, three positions, of which two positions are used for controlling the wiring, and the remaining one position is used for connecting the shielding layer of the control cable. In this way, all external connections (such as buttons, indicator lights, loads, etc.) are provided with a shielding layer grounding point, perfect shielding and grounding design, and the electromagnetic compatibility of the entire system is improved.

[0015] Secondly, the application forms a tinning groove on the solder resist layer, and a solder layer is arranged in the tinning groove, which is attached to the copper wire layer, thereby increasing the current carrying capacity of the overall wiring to reduce the risk of the copper wire layer being burned through by the current. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a novel relay control circuit PCB board according to an embodiment of the application.

[0017] In the figure, 1 is a circuit board; 11 is a tinning groove; 2 is a relay base; 3 is a wiring terminal; and 4 is a solder layer. DETAILED DESCRIPTION

[0018] The following will be described in detail with reference to the accompanying drawings. Figure 1 The application will be further described in detail.

[0019] A novel relay control circuit PCB board, referring to Figure 1 , comprises a circuit board 1, a relay base 2 and a relay body, the circuit board 1 comprises a mounting layer, a copper wire layer and a solder resist layer which are sequentially attached, the mounting layer can be made of insulating glass material, the solder resist layer is made of epoxy resin, and the horizontal width of the copper wire layer is between 2mm and 3mm, and the copper wire layer is 2.54mm in the application. The relay base 2 is fixed on the circuit board 1, that is, the relay base 2 is fixed on the solder resist layer. There are two connecting contacts on the relay base 2, which are welded on the copper wire layer, thereby realizing the electrical connection between the relay base 2 and the copper wire layer.

[0020] The relay base 2 is provided with a plurality of relay bases 2, and the contacts of the plurality of relay bases 2 are welded on the copper wire layer. The plurality of relay bases 2 are electrically connected through the copper wire. The solidification control logic is completed on the circuit board 1, thereby reducing the wiring workload. The inherent things are standardized, that is, the wiring between the relay bases 2 is solidified on the circuit board 1. The wiring of this part is solidified on the circuit board 1, and there is no need for wiring. The wiring personnel only needs to connect the external wiring, and the workload is reduced by at least 50%.

[0021] The relay body is plug-in arranged on the relay base 2. The relay body can be provided with a plurality of relay bodies according to the requirements. Each relay base 2 can be inserted into one relay body. The relay body is installed on the relay base 2, thereby realizing the electrical connection between the plurality of relay bodies. Since the relay body and the relay base 2 are plug-in arranged, the relay body or the circuit wiring can be easily debugged, maintained and replaced.

[0022] Further, the novel relay control circuit PCB board further comprises a wiring terminal 3 which is fixedly connected to the circuit board 1 and electrically connected with the relay body. When the wiring personnel wires, the components are wired in a one-to-one manner with the wiring terminal 3, thereby reducing the requirement for the ability of the wiring personnel and avoiding the situation of wrong wiring or missing wiring. Specifically, the wiring terminal 3 and the relay body are electrically connected through the copper wire layer, that is, the connecting wire between the wiring terminal 3 and the relay body is also solidified on the circuit board 1, thereby further reducing the wiring difficulty. The identification is arranged on the wiring terminal 3, thereby facilitating the identification of the wiring personnel during wiring.

[0023] In the embodiment, the wiring terminal 3 is a three-layer PCB wiring terminal 3. The imported three-layer PCB wiring terminal 3 is used to realize high-density wiring in a small space. If the traditional single-layer wiring terminal 3 is used, the size of the circuit board 1 will be large. The three-layer terminal can reduce the size of the circuit board 1, thereby being beneficial to reducing the volume of the entire control component.

[0024] Further, the three-layer wiring terminal 3. Each three-layer PCB wiring terminal 3 has three layers, that is, three positions. Two positions are used to control the wiring, and the remaining one position is used to connect the shielding layer of the control cable. In this way, all external wirings (such as buttons, indicator lights, loads, etc.) are provided with shielding layer grounding points, thereby improving the electromagnetic compatibility performance of the entire system.

[0025] The general PCB circuit board 1 is subject to the width and thickness of the copper foil, and the current carrying capacity is not very high, and when the external load power is too large, the copper foil is easy to burn through; and the application is provided with a tinning groove 11 on the solder resist layer, and the tinning groove 11 is embedded with a solder layer 4. The solder layer 4 is closely attached to the copper wire layer and realizes electrical connection. Specifically, the solder layer 4 is electroplated on the copper wire layer through a tinning process, which effectively increases the total thickness of the copper wire layer in this area, thereby improving the current carrying capacity of the entire trace.

[0026] In the embodiment, the horizontal width of the solder layer 4 is set to be between 1mm and 2mm, and specifically, it can be 1.52mm. By setting the horizontal width of the solder layer 4 to be 1.52mm, the current carrying capacity of the copper wire layer provided with the solder layer 4 can be increased to about 10A, which can meet the construction requirements.

[0027] Further, a plurality of tinning grooves 11 can be provided on the solder resist layer, and the solder layer 4 is provided in each tinning groove 11. According to the specific requirements of the external load, the corresponding number of solder layers 4 can be opened in advance when the circuit board 1 is manufactured, so as to meet the subsequent power-on requirements.

[0028] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application. The same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A new type of relay control circuit (PCB) board characterized in that, The utility model relates to a relay structure, including: Circuit board (1) including mounting layer, copper wire layer and resist layer are overlaid in proper order; Relay base (2) are provided with a plurality of, a plurality of relay base (2) are fixed on the circuit board (1), a plurality of relay base (2) are electrically connected each other through the copper wire layer; Relay body, pluggable setting on the relay base (2).

2. A new type of relay control circuit PCB board according to claim 1, characterized in that, Still including wiring terminal (3), wiring terminal (3) fixed connection is in the circuit board (1) with relay body electrically connected.

3. A new type of relay control circuit PCB board according to claim 2, characterized in that, Wiring terminal (3) adopts three layers PCB wiring terminal (3).

4. A new type of relay control circuit PCB board according to claim 1, characterized in that, The resist layer is provided with tinning groove (11), the tinning groove (11) is provided with solder layer (4), and the solder layer (4) is attached to the copper wire layer and is electrically connected.

5. A new type of relay control circuit PCB board according to claim 4, characterized in that, The solder layer (4) width is between 1mm~2mm.

6. A new type of relay control circuit PCB board according to claim 1, characterized in that, The copper wire layer width is between 2mm~3mm.

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