Explosion-proof coil component

Abstract

The utility model discloses an explosion-proof coil component, which relates to the technical field of electromagnetic coils, and comprises an explosion-proof shell, one end of the explosion-proof shell is provided with an explosion-proof top cover, the inner side of the explosion-proof shell is provided with a coil magnetic conductive iron shell, the coil magnetic conductive iron shell is internally provided with a coil framework, and the coil framework is provided with an electromagnetic coil. The coil framework is sleeved with the coil, an anti-explosion lead connector is installed on one side of the anti-explosion shell, a wiring terminal assembly is installed on the inner side of the anti-explosion lead connector, the coil is subjected to paint dipping treatment through high-temperature-resistant flame-retardant insulating paint, the insulating paint permeates into gaps of the coil, and the electrical insulation performance, the moisture-proof performance and the mechanical strength of the coil are enhanced; the coil, the electronic component and the magnetic conductive material are assembled in the metal shell in a split mode, the whole explosion-proof coil component is convenient to install and disassemble, the explosion-proof performance of the explosion-proof coil component is improved, the effect of reducing energy consumption is achieved, and the stability of the explosion-proof coil component in the using process is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic coil, concretely is a kind of explosion-proof coil component. BACKGROUND

[0002] Explosion-proof coil is a kind of component used in explosion-proof electrical equipment, it is mainly composed of coil and coil framework, and magnetic conducting parts and explosion-proof shell etc., when coil is energized, coil and magnetic conducting parts generate magnetic field, attract and match magnetic conducting moving parts and magnetic conducting fixed parts, when power is disconnected, magnetic field disappears, magnetic conducting moving parts are automatically reset under the action of its gravity or spring element, explosion-proof coil generally adopts explosion-proof design, its combination surface is designed according to explosion-proof standard to achieve explosion-proof purpose, explosion-proof coil is usually used in dangerous environment, with the function of preventing explosion and fire, they are common in oil, chemical industry, mining industry etc., the design of explosion-proof coil is to prevent the spark or heat caused by internal equipment failure from causing the explosion of external combustible gas or dust.

[0003] Prior art CN216479200U discloses a kind of explosion-proof electromagnetic valve coil, technical scheme discloses "the utility model discloses a kind of explosion-proof electromagnetic valve coil, it is related to electromagnetic valve coil technical field, including first magnetic conductor, winding and second magnetic conductor, the first magnetic conductor and the second magnetic conductor are the barrel-shaped structure of same diameter, the first magnetic conductor and the second magnetic conductor are coaxially arranged, the barrel mouth of the first magnetic conductor and the second magnetic conductor is connected oppositely and is closed structure, the winding is located inside the first magnetic conductor and the second magnetic conductor and is adapted to internal shape.There is following beneficial effect: the first magnetic conductor and the second magnetic conductor of the utility model form closed structure, coil winding is protected in it, for more comprehensive coil protection, it is more firm as a whole, and it has explosion-proof function, prevents the influence of high temperature or even explosion of coil on external components;Further, the first magnetic conductor and the second magnetic conductor of barrel-shaped structure are better for the gathering effect of coil magnetic field, can improve the working efficiency of coil."

[0004] Although prior art has disclosed a kind of explosion-proof electromagnetic valve coil, but still there are some deficiencies, specifically, in actual production operation process, the explosion-proof coil lacks corresponding convenient dismounting structure, and the dismounting process is tedious in the process of use, not only increases the labor intensity of worker, but also is easy to cause damage to explosion-proof coil in the process of dismounting, further influence its explosion-proof effect and service life, therefore urgently need to provide a kind of new explosion-proof coil component to solve the problem of explosion-proof coil dismounting, improve production efficiency and service life. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of explosion-proof coil component to solve the problem in prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: an explosion -proof coil part, the explosion -proof coil part includes explosion -proof casing, one end of explosion -proof casing is equipped with explosion -proof top cover, the inboard of explosion -proof casing is equipped with coil guide magnet shell, the inside of coil guide magnet shell is equipped with coil framework, the sleeve joint of coil is equipped on the coil framework, the one side of explosion -proof casing is equipped with explosion -proof lead connector, the inboard of explosion -proof lead connector is equipped with terminal block assembly, the one side of explosion -proof lead connector is equipped with end cover. Explosion -proof casing and explosion -proof top cover are used to close and protect the internal structure, the function of coil guide magnet shell is to ensure the sealing of internal environment, prevents the invasion of harmful substances from outside, has high strength and protection performance, can bear certain internal and external pressure, prevents spark and heat from spreading to the external environment, coil guide magnet shell and magnetic plate are used to enhance the magnetic field intensity of coil, improve the utilization efficiency of magnetic field, can effectively improve electromagnetic induction effect, coil can generate magnetic field after being electrified, terminal block assembly is used to connect power supply and coil, ensures stable electrical contact, the function of end cover is to close and protect terminal block assembly, ensures the safety and stability of the whole part.

[0007] The explosion -proof casing is cylindrical structure, the coil guide magnet shell is located on the inner wall of explosion -proof casing and is away from the one side of explosion -proof top cover, two magnetic plates are arranged on the inner wall of coil guide magnet shell, and the coil framework is located between the two magnetic plates.

[0008] The terminal block assembly is screw terminal, the terminal block assembly includes a wire insertion seat, the wire insertion seat is arranged on the inner wall of explosion -proof lead connector, two screws are arranged on the wire insertion seat, a gasket is arranged on one side of the two screws, a conductive part is arranged on the other side of the wire insertion seat, a wire is arranged on one side of the conductive part, the wire is connected with the power supply outside, and a cover plate is arranged on one side of the explosion -proof lead connector. The wire insertion seat is responsible for supporting and connecting the whole terminal block assembly, the gasket is used to increase the contact area and reduce the pressure, so that the wire is not damaged due to excessive compression, the conductive part connects the wire with the electrical equipment, ensures the smooth passage of current, and the conductive part also emits certain heat during normal operation, so that overheating does not cause failure.

[0009] The lower side of the explosion-proof shell is provided with a groove, and the groove is provided with an O-shaped rubber sealing ring one; the explosion-proof shell and the explosion-proof top cover are provided with an O-shaped rubber sealing ring two; the connection part of the explosion-proof lead connector and the explosion-proof shell and the connection part of the explosion-proof lead connector and the end cover are provided with an O-shaped rubber sealing ring three; the O-shaped rubber sealing ring one and the O-shaped rubber sealing ring two seal the explosion-proof shell and prevent external gas and liquid from entering the explosion-proof shell; and the O-shaped rubber sealing ring three seals the connection part between the explosion-proof lead connector and the explosion-proof shell and the end cover, so as to ensure the safety and reliability of the explosion-proof coil part; the coil and all electronic components and the magnetic conductive material are assembled in the metal shell in a split type.

[0010] The explosion-proof shell is made of stainless steel or aluminum alloy material, the coil framework is made of PPS or PA insulating material, the coil is wound by insulating copper wire, the magnetic conductive plate and the coil magnetic conductive iron shell are made of soft iron or low-carbon steel, the wire seat is made of insulating material, and the conductive part is made of copper. The stainless steel and the aluminum alloy material have good corrosion resistance and strength, can effectively resist the erosion of the external environment, ensure the stability and durability of the part, the soft iron material and the low-carbon steel have high magnetic conductivity, so that the coil can generate greater magnetic flux when working, the power of the explosion-proof coil can be improved, and the energy consumption of the device is reduced, the coil is wound by insulating copper wire and is subjected to dip paint treatment by using high-temperature resistant and flame-retardant insulating paint, the insulating paint penetrates into the gap of the coil, and the electrical insulation performance, moisture resistance and mechanical strength of the coil are enhanced; the copper wire has good electrical conductivity and heat conduction performance, can effectively transfer current and heat, and ensures the stability and safety of the coil when working; the material of the wire seat has good insulating performance and heat resistance, can effectively prevent current leakage and overheating, and the conductive part has good electrical conductivity and corrosion resistance, can effectively transfer current.

[0011] The explosion-proof top cover is provided with an internal hexagonal head screw one at four corners, the internal hexagonal head screw one connects the explosion-proof shell and the explosion-proof top cover, the explosion-proof lead connector is provided with an internal hexagonal head screw two at four corners, the internal hexagonal head screw two connects the explosion-proof shell and the explosion-proof lead connector, and the explosion-proof lead connector is provided with an internal hexagonal head screw three on one side, and the internal hexagonal head screw three connects the explosion-proof lead connector and the end cover.

[0012] Compared with the prior art, the explosion-proof coil has the advantages that:

[0013] 1、The explosion-proof coil is assembled in a split type, is convenient to install and disassemble, the explosion-proof shell isolates the parts in the device from the external environment, prevents internal sparks or heat from being transmitted to the external environment, can withstand the pressure from the internal and external environment, can effectively reduce the risk of explosion even in the case of failure or short circuit, and higher safety is provided for the use environment.

[0014] 2、The coil and the conductive part in the utility model adopt high-conductivity material to reduce resistance, thereby reducing power consumption, and the coil framework is made of soft magnetic material with high magnetic permeability, which can generate a strong magnetic field under a lower current, improve the efficiency of electromagnetic induction, realize the effect of low energy consumption, has large power, and meets the needs in different use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the utility model;

[0016] Figure 2 is a front view of the utility model;

[0017] Figure 3 is a sectional view of the utility model;

[0018] Figure 4 is a coil part half-sectional view of the utility model;

[0019] Figure 5 is a wiring terminal assembly perspective view of the utility model;

[0020] Figure 6 is a wiring terminal assembly explosion view of the utility model.

[0021] In the drawing: 1, explosion-proof shell; 2, explosion-proof top cover; 3, explosion-proof lead joint; 4, wiring terminal assembly; 5, end cover; 6, coil framework; 7, coil; 8, magnetic conducting plate; 9, coil magnetic conducting iron shell; 10, O-shaped rubber sealing ring one; 11, O-shaped rubber sealing ring two; 12, O-shaped rubber sealing ring three; 13, cover plate; 14, inner hexagonal head screw one; 15, wire seat; 16, screw; 17, gasket; 18, conductive part; 19, wire; 20, inner hexagonal head screw two; 21, inner hexagonal head screw three. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-6The utility model provides technical scheme: a kind of explosion-proof coil component, explosion-proof coil component includes explosion-proof shell 1, explosion-proof shell 1 one end is equipped with explosion-proof top cover 2, coil magnetism guide shell 9 is installed in the inside of explosion-proof shell 1, coil magnetism guide shell 9 is equipped with coil framework 6 inside, coil framework 6 is sleeved with coil 7, explosion-proof shell 1 one side is equipped with explosion-proof lead connector 3, explosion-proof lead connector 3 inside is equipped with terminal block assembly 4, explosion-proof lead connector 3 one side is equipped with end cover 5.Explosion-proof shell 1 and explosion-proof top cover 2 are used to close and protect internal structure, the effect of coil magnetism guide shell 9 is to ensure the sealing of internal environment, prevent harmful substances from outside to invade, with high strength and protective performance, can withstand certain internal and external pressure, prevent spark and heat diffusion to external environment, coil magnetism guide shell 9 and magnetism guide plate 8 are used to enhance the magnetic field intensity of coil 7, improve the utilization efficiency of magnetic field, can effectively improve electromagnetic induction effect, coil 7 can generate magnetic field after energization, terminal block assembly 4 is used to connect power supply and coil 7, ensure stable electrical contact, the effect of end cover 5 is to close and protect terminal block assembly 4, ensure the safety and stability of entire component.

[0024] Explosion-proof shell 1 is the structure of cylinder, coil magnetism guide shell 9 is arranged on the inner wall of explosion-proof shell 1 and is away from the side of explosion-proof top cover 2, two magnetism guide plates 8 are arranged in coil magnetism guide shell 9, two magnetism guide plates 8 are arranged on the upper and lower sides of the inner wall of coil magnetism guide shell 9, and coil framework 6 is located between the two magnetism guide plates 8.

[0025] Terminal block assembly 4 is screw terminal, and the terminal block assembly 4 includes a wire socket 15, the wire socket 15 is arranged on the inner wall of the explosion-proof lead connector 3, two screws 16 are arranged on the wire socket 15, the gasket 17 is arranged on one side of the two screws 16, the conductive part 18 is arranged on the other side of the wire socket 15, the wire 19 is arranged on one side of the conductive part 18, the wire 19 is connected with the power supply outside, and the cover plate 13 is arranged on one side of the explosion-proof lead connector 3. The wire socket 15 is responsible for supporting and connecting the entire terminal block assembly 4, the gasket 17 is used to increase the contact area and reduce the pressure, so as to prevent the wire 19 from being damaged by excessive compression, the conductive part 18 connects the wire 19 with the electrical equipment, so as to ensure the smooth passage of current, and the conductive part 18 also emits a certain amount of heat during normal operation, so as to avoid overheating and cause failure.

[0026] The lower side of the explosion-proof shell 1 is provided with a groove, and the groove is provided with an O-shaped rubber sealing ring 10. The explosion-proof shell 1 and the explosion-proof top cover 2 are provided with an O-shaped rubber sealing ring 11. The connection between the explosion-proof lead connector 3 and the explosion-proof shell 1 and the connection between the explosion-proof lead connector 3 and the end cover 5 are provided with an O-shaped rubber sealing ring 12. The O-shaped rubber sealing ring 10 and the O-shaped rubber sealing ring 11 seal the explosion-proof shell 1 to prevent external gas and liquid from entering the explosion-proof shell 1. The O-shaped rubber sealing ring 12 seals the connection between the explosion-proof lead connector 3 and the explosion-proof shell 1 and the end cover 5 to ensure the safety and reliability of the explosion-proof coil component. The coil 7 and all electronic components, as well as the magnetic conductive material, are assembled in the metal shell in a split type.

[0027] The explosion-proof shell 1 is made of stainless steel or aluminum alloy material. The coil skeleton 6 is made of PPS or PA insulating material. The coil 7 is wound by insulating copper wire. The magnetic conductive plate 8 and the coil magnetic iron shell 9 are made of soft iron or low carbon steel. The wire insertion seat 15 is made of insulating material. The conductive part 18 is made of copper. The stainless steel material has good corrosion resistance and strength, which can effectively resist the erosion of the external environment, ensuring the stability and durability of the component. The soft iron material has high magnetic permeability, so that the coil 7 can generate more magnetic flux when working, which can improve the power of the explosion-proof coil component, thereby reducing the energy consumption of the device. The coil 7 is wound by insulating copper wire and treated by dipping with high-temperature resistant and flame-retardant insulating paint. The insulating paint penetrates into the gaps of the coil 7, enhancing the electrical insulation performance, moisture resistance and mechanical strength of the coil 7. The copper wire has good electrical conductivity and thermal conductivity, which can effectively transfer current and heat, ensuring the stability and safety of the coil 7 when working. The material of the wire insertion seat 15 has good insulating performance and heat resistance, which can effectively prevent current leakage and overheating. The conductive part 18 has good electrical conductivity and corrosion resistance, which can effectively transfer current.

[0028] The explosion-proof top cover 2 is provided with an inner hexagonal head screw 14 at the four corners, which connects the explosion-proof shell 1 and the explosion-proof top cover 2. The explosion-proof lead connector 3 is provided with an inner hexagonal head screw 20 at the four corners, which connects the explosion-proof shell 1 and the explosion-proof lead connector 3. The explosion-proof lead connector 3 is provided with an inner hexagonal head screw 21, which connects the explosion-proof lead connector 3 and the end cover 5.

[0029] The working principle of the utility model discloses: before working, the anti-explosion coil component connects the wire 19 with the external power supply, opens the power supply, the current passes through the wire 19 and the terminal assembly 4 and enters the coil 7, the coil 7 generates the electromagnetic field through the electromagnetic induction principle, when the current exceeds certain value, the coil 7 inside will appear the magnetic field saturation, thereby limit the further increase of the current, the electromagnetic field can influence the adjacent circuit electromotive force, thereby store the electric energy and limit the current variation, the magnetic field generated in the coil 7 and the magnetic field direction generated by the electric arc are opposite, produce the interaction, thereby the diffusion of the electric arc is inhibited, effectively prevent the generation and diffusion of spark, guarantee the electrical equipment in dangerous environment not to explode.

[0030] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. An explosion-proof coil assembly, characterized by: The explosion-proof coil component includes an explosion-proof shell (1), an explosion-proof top cover (2) is installed at one end of the explosion-proof shell (1), a coil magnet guide shell (9) is installed on the inner side of the explosion-proof shell (1), a coil framework (6) is installed inside the coil magnet guide shell (9), a coil (7) is sleeved on the coil framework (6), an explosion-proof lead connector (3) is installed on one side of the explosion-proof shell (1), a wiring terminal assembly (4) is installed on the inner side of the explosion-proof lead connector (3), and an end cover (5) is installed on one side of the explosion-proof lead connector (3).

2. An explosion-proof coil assembly according to claim 1, characterized in that: The explosion-proof shell (1) is a cylindrical structure, the coil magnet guide shell (9) is arranged on the inner wall of the explosion-proof shell (1) away from the explosion-proof top cover (2), two magnet guide plates (8) are arranged in the coil magnet guide shell (9), and the coil framework (6) is located between the two magnet guide plates (8).

3. A flameproof coil assembly according to claim 2, wherein: The wiring terminal assembly (4) is a screw type wiring terminal, the wiring terminal assembly (4) includes a wire insertion seat (15), the wire insertion seat (15) is arranged on the inner wall of the explosion-proof lead connector (3), two screws (16) are arranged on the wire insertion seat (15), a gasket (17) is arranged on one side of the two screws (16), a conductive part (18) is arranged on the other side of the wire insertion seat (15), a wire (19) is arranged on one side of the conductive part (18), the wire (19) is connected with an external power supply, and a cover plate (13) is arranged on one side of the explosion-proof lead connector (3).

4. A flameproof coil assembly according to claim 3, wherein: The explosion-proof shell (1) is provided with a groove on the lower side, an O-shaped rubber sealing ring I (10) is arranged in the groove, an O-shaped rubber sealing ring II (11) is arranged between the explosion-proof shell (1) and the explosion-proof top cover (2), and O-shaped rubber sealing ring III (12) is arranged at the connecting position of the explosion-proof lead connector (3) and the explosion-proof shell (1) and the connecting position of the explosion-proof lead connector (3) and the end cover (5).

5. A flameproof coil assembly according to claim 4, wherein: The explosion-proof shell (1) is made of stainless steel or aluminum alloy material, the coil framework (6) is made of PPS or PA insulating material, the coil (7) is made of insulating copper wire, the magnet guide plates (8) and the coil magnet guide shell (9) are made of soft iron or low-carbon steel, the wire insertion seat (15) is made of insulating material, and the conductive part (18) is made of copper.

6. A flameproof coil assembly according to claim 5, wherein: The explosion-proof top cover (2) is provided with an inner hexagonal head screw I (14) at four corners, the inner hexagonal head screw I (14) connects the explosion-proof shell (1) and the explosion-proof top cover (2), the explosion-proof lead connector (3) is provided with an inner hexagonal head screw II (20) at four corners, the inner hexagonal head screw II (20) connects the explosion-proof shell (1) and the explosion-proof lead connector (3), and the explosion-proof lead connector (3) is provided with an inner hexagonal head screw III (21) on one side, and the inner hexagonal head screw III (21) connects the explosion-proof lead connector (3) and the end cover (5).

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