A terminal resistant to electrolytic corrosion

Abstract

The utility model relates to terminal technology field especially relates to a terminal of electrolytic corrosion resistance, terminal of electrolytic corrosion resistance, including terminal, the bottom of terminal is provided with through slot, still including titanium nitride layer and sealing ring etc, the outer surface of terminal is equipped with titanium nitride layer, the inside surface of terminal starts to have a plurality of flow guide groove, the port of terminal both sides all fixedly connected with a sealing ring. Through flow guide groove, utilize gravity or surface tension to guide the dew flow to specific through slot area, thereby avoid the terminal inside to gather too much dew, and if not to its in time processing, can reduce terminal insulation performance, possibly cause the electric leakage or short circuit, especially more dangerous under high pressure environment, contact resistance also can increase, because the corrosion product can hinder the current to pass through, lead to heat, even cause fire and other problems.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and in particular to a terminal block resistant to electrolytic corrosion. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections, and are classified as connectors in industry. With increasing industrial automation and more stringent and precise industrial control requirements, the use of terminal blocks is gradually rising.

[0003] Existing terminal blocks have poor corrosion resistance and are easily affected by environmental factors during use, leading to corrosion by strong acids or alkalis, which can damage the terminals, expose the wires, and create significant safety hazards. In addition, due to the formation of an oxide corrosion layer, the terminal blocks may experience increased contact resistance over long-term use, resulting in a decline in electrical connection performance. Utility Model Content

[0004] To overcome the shortcomings of existing terminals, which have poor corrosion resistance and are easily affected by environmental factors during use, leading to corrosion by strong acids or alkalis and subsequent damage, this invention provides a terminal resistant to electrolytic corrosion.

[0005] The technical implementation scheme of this utility model is as follows: a terminal resistant to electrolytic corrosion, comprising a terminal; a through groove is opened at the bottom of the terminal; it also includes a titanium nitride layer, a sealing ring, a collection box and a piston; a titanium nitride layer is provided on the outer surface of the terminal; multiple guide grooves are provided on the inner surface of the terminal; a sealing ring is fixedly connected to the ports on both sides of the terminal; a collection box is fixedly connected to the bottom of the outer ring surface of the terminal, and the slot opened on the collection box is connected to the through groove; a piston is inserted into the collection box.

[0006] Optionally, the inner wall of the flow channel is coated with PTFE (polytetrafluoroethylene) or a nano-coating.

[0007] Optionally, the sealing ring is provided with an anti-aging layer.

[0008] Optionally, it also includes a support base, elastic sheet, pull rope, and clamp; the support base is fixedly connected to the bottom of the terminal; an elastic sheet is fixedly connected to the top of each side of the terminal; a pull rope is fixedly connected to each elastic sheet and the pull rope passes through the terminal; and a clamp is fixedly connected to each elastic sheet.

[0009] Optionally, it also includes a silver-graphene composite layer; both the support base and the clip surface are provided with a layer of silver-graphene composite layer, and the silver-graphene composite layer is oriented.

[0010] Optionally, it also includes a nickel-phosphorus alloy layer; the silver-graphene composite layer is provided with a nickel-phosphorus alloy layer.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] Because the sealing ring has an anti-aging layer, the excellent chemical resistance of the fluorosilicone coating in the anti-aging layer—resistance to water, acid, alkali, salt water, and damp heat—prevents the sealing ring from aging after prolonged use. This prevents moisture from entering the terminal through the aged sealing ring, which could then cause corrosion of the terminal and the wires.

[0013] By designing a titanium nitride layer, the high hardness, wear resistance, and corrosion resistance of the titanium nitride layer are utilized to improve the wear resistance and chemical corrosion resistance of the terminals, thereby making the terminals resistant to acid, alkali, and salt spray corrosion, and especially exhibiting excellent stability in high temperature and high humidity environments.

[0014] Meanwhile, the design of the nickel-phosphorus alloy layer enhances the wear resistance of the support base and clips, reduces mechanical damage to the wires during installation or plugging and unplugging, and also plays a role in corrosion protection. Because the amorphous structure of the nickel-phosphorus alloy layer is dense, it blocks the support base and clips (such as copper) from contact with the external electrolyte, inhibiting their corrosion.

[0015] In this way, the design of the silver-graphene composite layer utilizes the superior conductivity of silver compared to other metals to ensure low contact resistance and improve conductivity. Furthermore, the two-dimensional structure of graphene forms a physical barrier to prevent the penetration of corrosive media, thereby enhancing corrosion resistance. At the same time, the oriented arrangement of the silver-graphene composite layer forms a continuous conductive network, which significantly improves the longitudinal conductivity and further enhances the lateral resistance to penetration.

[0016] By using the flow channel, gravity or surface tension is used to guide the condensation to a specific channel area, thereby preventing excessive condensation from accumulating inside the terminal. If this condensation is not treated in time, it will reduce the insulation performance of the terminal, which may cause leakage or short circuit, especially dangerous in high-voltage environments. Contact resistance will also increase because corrosion products will hinder the flow of current, leading to overheating and even fire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first type of electrolytic corrosion resistant terminal disclosed in this utility model;

[0018] Figure 2 This is a first partial cross-sectional view of the electrolytic corrosion resistant terminal of this utility model;

[0019] Figure 3 This is a second partial cross-sectional view of the electrolytic corrosion resistant terminal of this utility model;

[0020] Figure 4This is an enlarged view of point A of the terminal resistant to electrolytic corrosion disclosed in this utility model.

[0021] The components in the attached diagram are labeled as follows: 1-terminal, 1a-through groove, 2-titanium nitride layer, 3-sealing ring, 4-flow guide groove, 5-collection box, 6-piston, 7-support base, 8-elastic sheet, 9-pull rope, 10-clamping piece, 11-silver-graphene composite layer, 12-nickel-phosphorus alloy layer, 01-wire. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] A terminal 1 resistant to electrolytic corrosion, such as Figure 1-4 As shown, it includes a terminal 1; a through groove 1a is provided at the bottom of the terminal 1;

[0025] It also includes a titanium nitride layer 2, a sealing ring 3, a collection box 5, and a piston 6; the outer surface of the terminal 1 is provided with a titanium nitride layer 2; the inner surface of the terminal 1 has multiple guide grooves 4; a sealing ring 3 is fixedly connected to each of the ports on both sides of the terminal 1; a collection box 5 is fixedly connected to the bottom of the outer ring surface of the terminal 1, and the slot on the collection box 5 is connected to the through groove 1a; a piston 6 is inserted into the collection box 5.

[0026] The inner wall of the guide channel 4 is sprayed with PTFE (polytetrafluoroethylene) or a nano-coating to reduce surface tension and make water droplets slide more easily.

[0027] The sealing ring 3 is provided with an anti-aging layer, in which the fluorosilicone coating can prevent the sealing ring 3 from aging easily after long-term use.

[0028] It also includes a support base 7, an elastic piece 8, a pull rope 9, and a clip 10; the support base 7 is fixedly connected to the bottom of the terminal 1; an elastic piece 8 is fixedly connected to the top of each side of the terminal 1; a pull rope 9 is fixedly connected to each elastic piece 8, and the pull rope 9 passes through the terminal 1; a clip 10 is fixedly connected to each elastic piece 8.

[0029] It also includes a silver-graphene composite layer 11; both the support base 7 and the clip 10 have a layer of silver-graphene composite layer 11 on their surfaces, and the silver-graphene composite layer 11 is oriented.

[0030] It also includes a nickel-phosphorus alloy layer 12; the silver-graphene composite layer 11 is provided with a nickel-phosphorus alloy layer 12.

[0031] When using this anti-electrolytic corrosion terminal 1, the user first pulls the pull cord 9, which causes one end of the elastic plate 8 to deform elastically and deflect upward. The clip 10 and the corresponding silver graphene composite layer 11 and nickel-phosphorus alloy layer 12 move upward synchronously with the elastic plate 8. Then, the user strips the wire 01 to the appropriate length and inserts it until the exposed wire 01 is completely inserted into the terminal 1. At this time, the end of the wire 01 will be supported on the support base 7 and will contact the nickel-phosphorus alloy layer 12 on the support base 7. At the same time, the sealing ring 3 will seal the gap between the wire 01 and the terminal 1 port, thereby preventing dust and moisture from entering the terminal 1 during subsequent work, making the inside of the terminal 1 and the wiring part of the wire 01 damp, which will lead to rust and corrosion inside the terminal 1 and the wiring part, thus affecting the electrical performance of the connection.

[0032] At the same time, because the sealing ring 3 is provided with an anti-aging layer, the excellent chemical resistance properties of the fluorosilicone coating in the anti-aging layer, such as water resistance, acid resistance, alkali resistance, salt water resistance, and damp heat resistance, can prevent the sealing ring 3 from aging after long-term use. This would prevent moisture from entering the terminal 1 through the aged sealing ring 3, which would cause corrosion inside the terminal 1 and the wire 01.

[0033] Meanwhile, during the process of inserting the wire 01 into the terminal 1, since the clip 10 is far away from the end of the wire 01, the clip 10 will not rub or limit the wire 01 when it is inserted, thereby reducing the wear between the wire 01 and the nickel-phosphorus alloy layer 12.

[0034] Then, the user will release the pull cord 9, and the elastic piece 8 will change from an elastic deformation state to a normal state. During the change of the elastic piece 8, it will drive the clamping piece 10 to move down and reset. Then, the nickel-phosphorus alloy layer 12 on the clamping piece 10 will come into contact with the outer surface of the wire 01. Under the action of the elastic piece 8, the clamping piece 10 will clamp and fix the wire 01. Figure 3 As shown;

[0035] Next, during the use of terminal 1, the high hardness, wear resistance and corrosion resistance of titanium nitride layer 2 are utilized to improve the wear resistance and chemical corrosion resistance of terminal 1, thereby making terminal 1 resistant to acid, alkali and salt spray corrosion, and especially with excellent stability in high temperature and high humidity environments.

[0036] Meanwhile, the design of the nickel-phosphorus alloy layer 12 enhances the wear resistance of the support base 7 and the clip 10, reduces mechanical damage to the wire 01 during installation or plugging and unplugging, and also plays a role in corrosion protection and isolation. Because the amorphous structure of the nickel-phosphorus alloy layer 12 is dense, it blocks the support base 7 and the clip 10 (such as copper) from contact with the external electrolyte, inhibiting their corrosion.

[0037] In this regard, the design of the silver-graphene composite layer 11 utilizes the superior conductivity of silver compared to other metals to ensure low contact resistance and improve conductivity. Furthermore, the two-dimensional structure of graphene forms a physical barrier to prevent the penetration of corrosive media, thereby enhancing corrosion resistance. At the same time, the directional arrangement of the silver-graphene composite layer 11 forms a continuous conductive network, which significantly improves the longitudinal conductivity and further enhances the lateral resistance to penetration.

[0038] Then, when there are large temperature changes, condensation will form inside terminal 1. At this time, the condensation is guided to a specific channel 1a area by gravity or surface tension through the guide channel 4, thereby preventing excessive condensation from accumulating inside terminal 1. If it is not treated in time, it will reduce the insulation performance of terminal 1, which may cause leakage or short circuit, especially dangerous under high voltage environment. The contact resistance will also increase because corrosion products will hinder the current flow, causing heat generation and even fire. The guided condensation will then enter the collection box 5 through the channel 1a. After that, the user can pull the piston 6 out of the collection box 5 to drain the water in the collection box 5.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal resistant to electrolytic corrosion, characterized in that: It includes a terminal (1); a through groove (1a) is provided at the bottom of the terminal (1); it also includes a titanium nitride layer (2), a sealing ring (3), a collection box (5) and a piston (6); a titanium nitride layer (2) is provided on the outer surface of the terminal (1); multiple guide grooves (4) are provided on the inner surface of the terminal (1); a sealing ring (3) is fixedly connected to the ports on both sides of the terminal (1); a collection box (5) is fixedly connected to the bottom of the outer ring surface of the terminal (1), and the slot on the collection box (5) is connected to the through groove (1a); a piston (6) is inserted into the collection box (5).

2. A terminal resistant to electrolytic corrosion according to claim 1, characterized in that: The inner wall of the guide channel (4) is sprayed with PTFE (polytetrafluoroethylene) or nano coating.

3. A terminal resistant to electrolytic corrosion according to claim 1, characterized in that: An anti-aging layer is provided on the sealing ring (3).

4. A terminal resistant to electrolytic corrosion according to claim 1, characterized in that: It also includes a support base (7), an elastic piece (8), a pull rope (9) and a clip (10); the support base (7) is fixedly connected to the bottom of the terminal (1); an elastic piece (8) is fixedly connected to the top of each side of the terminal (1); a pull rope (9) is fixedly connected to each elastic piece (8), and the pull rope (9) passes through the terminal (1); a clip (10) is fixedly connected to each elastic piece (8).

5. A terminal resistant to electrolytic corrosion according to claim 4, characterized in that: It also includes a silver graphene composite layer (11); the support base (7) and the clip (10) are both provided with a layer of silver graphene composite layer (11), and the silver graphene composite layer (11) is oriented.

6. A terminal resistant to electrolytic corrosion according to claim 5, characterized in that: It also includes a nickel-phosphorus alloy layer (12); the silver-graphene composite layer (11) has a nickel-phosphorus alloy layer (12).

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