Strong and weak electricity isolation plug-in device

Abstract

The application discloses a strong and weak electricity isolation plug device, which comprises a base body and a plug module, the base body is internally provided with an integrated circuit board, an embedding groove and a wiring terminal, the side wall of the embedding groove is provided with an electrical connection sheet, the bottom wall of the embedding groove is provided with a foot needle hole, the foot needle hole penetrates to the end face of the integrated circuit board; the wiring terminal is located outside the embedding groove, the side part of the base body is provided with a wiring port, the wiring port corresponds to the wiring terminal; the wiring terminal is electrically connected with the electrical connection sheet; the bottom end of the plug module is provided with a foot needle, the side part of the plug module is provided with a conductive sheet, the plug module is used for embedding in the embedding groove, so that the foot needle is embedded in the foot needle hole, and the conductive sheet is electrically connected with the electrical connection sheet. The strong and weak electricity isolation plug device can make the strong electricity with load and the weak electricity of the control circuit run through different lines and be mutually independent and isolated.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more particularly to a strong and weak current isolation plug-in device. Background Technology

[0002] Currently, existing pluggable modules are designed for rated currents below 5A, and the pluggable pins are located at the bottom of the module connector. These pins are small copper plates, which not only limit the current flow but also make them prone to breakage. Furthermore, pluggable modules often combine high-voltage and low-voltage circuitry (high-voltage refers to both current and voltage; high current is AC / DC above 10A, and high voltage is AC / DC above 110V. Low-voltage refers to both current and voltage; low current is the rated current for normal operation on the PCB, and low voltage is AC / DC within the range of 1-250V). This structure can easily cause interference from high-current circuitry with the control current.

[0003] First, the base of the plug-in module has both terminals for the main contacts that carry high current and terminals for the control circuit coil that carry low current. These two types of terminals are very close together, and the wiring distance between the terminals is also very close. This structure poses a potential risk of current interference. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a strong and weak current isolation plug-in device, in which the strong current carrying the load and the weak current of the control circuit can each run on different lines and be independently isolated from each other.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A strong / weak current isolation plug-in device includes a base body and a plug-in module. The base body contains an integrated circuit board, an embedding slot, and a terminal block. The side wall of the embedding slot has an electrical connection piece, and the bottom wall of the embedding slot has pin holes that extend to the end face of the integrated circuit board. The terminal block is located outside the embedding slot, and the side of the base body has a wiring port corresponding to the terminal block. The terminal block is electrically connected to the electrical connection piece. The bottom end of the plug-in module has pins, and the side of the plug-in module has conductive pieces. The plug-in module is used to be embedded in the embedding slot so that the pins are inserted into the pin holes, and the conductive pieces are electrically connected to the electrical connection pieces.

[0007] Preferably, the side wall of the embedding slot is provided with a first connecting part, and the plug-in module is provided with a second connecting part, and the first connecting part and the second connecting part are connected by plugging.

[0008] Preferably, the side wall of the embedding groove is provided with a positioning guide groove, and the side of the plug-in module is provided with a positioning slider, which is used to be inserted into the positioning guide groove; the electrical connecting piece is installed in the positioning guide groove; the positioning guide groove is formed as a first connecting part, and the positioning slider is formed as a second connecting part.

[0009] Preferably, the positioning slider gradually tilts inward from top to bottom.

[0010] Preferably, the sidewall of the embedding groove is provided with a protrusion, the side of the plug-in module is provided with a groove, and the electrical connecting piece is provided on the protrusion; the protrusion is used to be inserted into the groove; the protrusion is formed as a first connecting part, and the groove is formed as a second connecting part.

[0011] Preferably, the plug-in module has anti-slip ridges on its side.

[0012] Preferably, the terminal extends along the height direction of the base body, and the top of the terminal extends out from the top surface of the base body.

[0013] Preferably, the top of the base body is provided with a terminal hole, and the top of the wiring terminal passes through the terminal hole; a cover plate is provided inside the terminal hole.

[0014] Preferably, the cover plate is screwed into the terminal hole.

[0015] Preferably, at least one conductive sheet and one pin are provided.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: throughout the entire process, high voltage is introduced through the terminal block, while low voltage is led out through the pins. That is, high voltage and low voltage always work independently and do not interfere with each other. This improves the safety and stability of the plug-in module and the base body, and avoids the occurrence of plug-in module burnout due to interference between high voltage and low voltage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the base body of the present invention;

[0019] Figure 3 This is a schematic diagram of the plug-in module of the present invention;

[0020] Figure 4 This is a schematic diagram of another structure of the plug-in module of the present invention.

[0021] In the diagram: 10. Base body; 11. Wiring port; 12. Embedded groove; 121. Positioning guide groove; 13. Pin hole; 14. Terminal hole; 20. Plug-in module; 21. Conductive sheet; 22. Pin; 23. Positioning slider; 24. Anti-slip ridge; 30. Cover plate; 40. Wiring terminal. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings and specific embodiments:

[0023] like Figure 1 , Figure 2 as well as Figure 3 The strong and weak current isolation plug-in device shown includes a base body 10 and a plug-in module 20. The base body 10 is provided with an integrated circuit board, an embedded groove 12 and a terminal block 40. An electrical connection piece is provided on the side wall of the embedded groove 12, and a pin hole 13 is provided on the bottom wall of the embedded groove 12. The pin hole 13 extends to the end face of the integrated circuit board.

[0024] In addition, the wiring terminal 40 is located outside the embedded groove 12, and a wiring port 11 is provided on the side of the base body 10. The wiring port 11 corresponds to the wiring terminal 40, and the wiring terminal 40 is electrically connected to the electrical connecting piece.

[0025] The bottom of the plug-in module 20 is provided with a pin 22, and the side of the plug-in module 20 is provided with a conductive sheet 21. The plug-in module 20 can be embedded in the embedding groove 12 so that the pin 22 is inserted into the pin hole 13, and the conductive sheet 21 is electrically connected to the electrical connection piece.

[0026] Based on the above structure, when using the strong and weak current isolation plug-in device of the present invention, the plug-in module 20 is provided with conductive plates 21 and pins 22 on its side and bottom, respectively. After the plug-in module 20 is inserted into the embedding groove 12, the conductive plates 21 on the side of the plug-in module 20 can be connected to the electrical connecting plates on the side of the embedding groove 12, and the pins 22 at the bottom of the plug-in module 20 can be inserted into the pin holes 13 to connect with the integrated circuit board. That is, the terminal 40 is connected to the power input line, and the strong current flows from the input terminal 40 of the base to the electrical connecting plates of the base body 10. The integrated circuit board and the conductive plates of the plug-in module can be energized and operate. After the integrated circuit board is energized, it can be used for its own circuitry, and can also provide power to the internal coils of the plug-in module through the pins.

[0027] In this way, throughout the entire process, high-voltage electricity is introduced through terminal 40, while low-voltage electricity is led out through pin 22. That is, high-voltage and low-voltage electricity always work independently and do not interfere with each other. This improves the safety and stability of the plug-in module 20 and the base body 10, and avoids situations such as the plug-in module 20 burning out due to interference between high-voltage and low-voltage electricity.

[0028] It should be noted that the plug-in module in this embodiment can be a relay module, optical sensor module, or controller module, etc., as used in the prior art.

[0029] Preferably, a first connecting part is provided on the side wall of the embedding groove 12, and a second connecting part is provided on the plug-in module 20. The first connecting part and the second connecting part are connected by plugging. In this way, when the plug-in module 20 is assembled with the base body 10, the plug-in module 20 can be inserted into the embedding groove 12 of the base body 10. During this process, the first connecting part and the second connecting part can be inserted and cooperated to guide the stable assembly of the plug-in module 20 and the base body 10.

[0030] Furthermore, in this embodiment, a positioning guide groove 121 may be provided on the side wall of the embedding groove 12, and a positioning slider 23 may be provided on the side of the plug-in module 20. The positioning slider 23 may be inserted into the positioning guide groove 121; the electrical connecting piece is installed in the positioning guide groove 121. Based on this structure, the positioning guide groove 121 forms a first connecting part, and the positioning slider 23 forms a second connecting part.

[0031] Thus, when the plug-in module 20 is inserted into the embedding slot 12, the positioning slider 23 can slide and engage with the positioning guide slot 121, guiding the accurate insertion of the plug-in module 20. On the other hand, the positioning slider 23 can fill the space of the positioning guide slot 121, making the plug-in module 20 more firmly connected to the base body 10. It can also guide the direction during the insertion process, making the insertion process faster and more stable.

[0032] It should be noted that the aforementioned electrical connecting piece can be implemented using a corrugated elastic copper sheet, as is available in the prior art.

[0033] More specifically, see Figure 4 The aforementioned positioning slider 24 can gradually tilt inward from top to bottom, so that the bottom end of the positioning slider can form a slope, which can guide the insertion of the wooden block while also preventing dust.

[0034] Of course, in other cases, a protrusion may be provided on the side wall of the embedding groove 12, and a groove may be provided on the side of the plug-in module 20, with an electrical connecting piece provided on the protrusion; the protrusion is used to be inserted into the groove; the protrusion is formed as the first connecting part, and the groove is formed as the second connecting part.

[0035] Preferably, the plug-in module 20 is provided with anti-slip ridges 24 on the side, which can be gripped by the hand to increase friction and facilitate plugging and unplugging.

[0036] Furthermore, the aforementioned terminal 40 extends along the height direction of the base body 10, and the top of the terminal 40 is led out from the top surface of the base body 10. The terminal 40 extending in the height direction can have a larger wiring surface, which facilitates the connection of the terminal 40 at different positions.

[0037] Of course, a terminal hole 14 can also be provided at the top of the base body 10, and the top of each terminal 40 can be inserted into the terminal hole 14. This facilitates the installation and removal of the terminal 40, and wiring can also be done in the terminal hole 14. After wiring, a cover plate 30 can be provided in the terminal hole 14. The cover plate 30 can be used to cover the exposed metal part of the terminal 40, effectively preventing foreign objects from entering the gap of the terminal 40, thereby reducing safety hazards.

[0038] Furthermore, the cover plate 30 can be screwed into the terminal hole 14 for easy assembly and disassembly. It should be noted that, in other cases, the cover plate 30 can also be made into other forms such as a flip cover or a sliding cover.

[0039] Preferably, in this embodiment, at least one conductive sheet and at least one pin can be provided. That is, depending on the actual situation, there can be one, two or more conductive sheets and pins, depending on the actual needs.

[0040] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A strong / weak current isolation plug-in device, characterized in that, The device includes a base body and a plug-in module. The base body contains an integrated circuit board, an embedding slot, and terminals. The side wall of the embedding slot has an electrical connection piece, and the bottom wall of the embedding slot has pin holes extending to the end face of the integrated circuit board. The terminals are located outside the embedding slot, and the side of the base body has a wiring port corresponding to the terminals. The terminals are electrically connected to the electrical connection piece. The bottom of the plug-in module has pins, and the side of the plug-in module has conductive pieces. The plug-in module is fitted into the embedding slot so that the pins are inserted into the pin holes, and the conductive pieces are electrically connected to the electrical connection piece. A power supply line is connected to the terminals, and high-voltage electricity flows from the terminals to the electrical connection piece of the base body. The integrated circuit board and the conductive pieces of the plug-in module are energized. After being energized, the integrated circuit board supplies power to its own circuitry and provides power to the plug-in module via the pins. High-voltage electricity is introduced through the terminals, and low-voltage electricity is led out via the pins.

2. The strong and weak current isolation plug-in device as described in claim 1, characterized in that, The side wall of the embedding slot is provided with a first connecting part, and the plug-in module is provided with a second connecting part. The first connecting part and the second connecting part are connected by plugging.

3. The strong and weak current isolation plug-in device as described in claim 2, characterized in that, The side wall of the embedding groove is provided with a positioning guide groove, and the side of the plug-in module is provided with a positioning slider. The positioning slider is used to be inserted into the positioning guide groove; the electrical connecting piece is installed in the positioning guide groove; the positioning guide groove is formed as a first connecting part, and the positioning slider is formed as a second connecting part.

4. The strong and weak current isolation plug-in device as described in claim 3, characterized in that, The positioning slider gradually tilts inward from top to bottom.

5. The strong and weak current isolation plug-in device as described in claim 2, characterized in that, The sidewall of the embedding groove is provided with a protrusion, the side of the plug-in module is provided with a groove, and the electrical connection piece is provided on the protrusion; the protrusion is used to be inserted into the groove; the protrusion is formed as a first connection part, and the groove is formed as a second connection part.

6. The strong and weak current isolation plug-in device as described in claim 1, characterized in that, The plug-in module has anti-slip ridges on its side.

7. The strong and weak current isolation plug-in device as described in any one of claims 1-6, characterized in that, The terminal block extends along the height of the base body, and the top of the terminal block is led out from the top surface of the base body.

8. The strong and weak current isolation plug-in device as described in claim 7, characterized in that, The top of the base body is provided with a terminal hole, and the top of the wiring terminal is inserted into the terminal hole.

9. The strong and weak current isolation plug-in device as described in claim 8, characterized in that, A cover plate is provided inside the terminal hole, and the cover plate is screwed into the terminal hole.

10. The strong and weak current isolation plug-in device as described in any one of claims 1-6, characterized in that, At least one conductive sheet and one pin are provided.

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