CN218038738U

CN218038738U - Combined type casting explosion-proof electromagnetic coil

Info

Publication number: CN218038738U
Application number: CN202222091159.1U
Authority: CN
Inventors: 吴培生
Original assignee: Ningbo Access Solenoid Valve Co ltd
Current assignee: Ningbo Access Solenoid Valve Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-13
Anticipated expiration: 2032-08-10

Abstract

The utility model relates to a combined type pouring flame-proof type electromagnetic coil, which comprises a pouring type electromagnetic coil and a flame-proof component, wherein the pouring type electromagnetic coil comprises a housing and a cable, a through hole is arranged on one side wall of the housing, and a leading-out connecting sleeve for leading out the cable is arranged through the through hole; the explosion-proof component comprises an explosion-proof connector and an explosion-proof cover, the explosion-proof cover is fixed on the explosion-proof connector, the explosion-proof connector is sleeved on the leading-out connecting sleeve, the leading-out connecting sleeve is connected with a pressing cap, and the explosion-proof connector is fixed on one side of the housing through the pressing cap; the explosion-proof cover is provided with an interface for connecting an explosion-proof joint; the utility model has the advantages that: the explosion-proof assembly and the pouring type electromagnetic coil are combined into a whole by arranging the leading-out connecting sleeve and the pressing cap, and the explosion-proof assembly has the advantages of compact structure, convenience in installation and good safety performance.

Description

Combined type casting explosion-proof electromagnetic coil

Technical Field

The utility model belongs to the technical field of solenoid, especially, relate to a modular encapsulation flame-proof type solenoid.

Background

The electromagnetic coil is built by utilizing the magnetic field existing around the conducting wire, the electromagnetic coil is wound into a spiral reinforced magnetic field, namely, the highest magnetic field intensity is realized by using the minimum space, and the space is saved by replacing the common conducting wire with the conducting wire coated with a layer of insulating paint. However, when the electromagnetic coil is applied to the field of electromagnetic valves, due to special requirements of certain application occasions, such as mines, petrochemical industry, combustible dust environments and the like, the electromagnetic coil with an explosion-proof function is required. However, according to different explosion-proof protection types, the electromagnetic coil can be divided into a pouring type explosion-proof electromagnetic coil, an explosion-proof type explosion-proof electromagnetic coil and the like, in some occasions, the electromagnetic coil needs to adopt two explosion-proof types of pouring sealing and explosion-proof simultaneously, so that the existing pouring type electromagnetic coil and the explosion-proof type electromagnetic coil are difficult to combine together in the using process and basically can be combined and applied by special connecting pieces, and the electromagnetic coil has the defects of incompact structure, troublesome installation and poor safety performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a compact structure, simple to operate, the combination formula of security performance is good waters and seals flame-proof type solenoid.

The utility model aims at completing the technical proposal that the combined type casting flame-proof electromagnetic coil comprises a casting electromagnetic coil and a flame-proof component, wherein the casting electromagnetic coil comprises a housing and a cable, a side wall of the housing is provided with a through hole, and a leading-out connecting sleeve for leading out the cable is arranged through the through hole; the explosion-proof component comprises an explosion-proof connector and an explosion-proof cover, the explosion-proof cover is fixed on the explosion-proof connector, the explosion-proof connector is sleeved on the leading-out connecting sleeve, a pressing cap is connected on the leading-out connecting sleeve, and the explosion-proof connector is fixed on one side of the housing through the pressing cap; and the explosion-proof cover is provided with an interface for connecting an explosion-proof joint.

The utility model has the advantages that: compared with the prior art, the explosion-proof assembly and the cast type electromagnetic coil are combined into a whole by arranging the leading-out connecting sleeve and the pressing cap, and the explosion-proof assembly has the advantages of compact structure, convenience in installation and good safety performance.

Preferably, one end of the leading-out connecting sleeve is an opening end, a circle of limiting block is arranged at the opening end, and the limiting block abuts against the inner side wall of the housing; the other end of the leading-out connecting sleeve, which is far away from the opening end, is provided with a through hole for the cable to penetrate through; the limiting block is arranged on the leading-out connecting sleeve, so that the installation is convenient, and meanwhile, the limiting installation between the leading-out connecting sleeve and the housing can be realized.

Preferably, the outer side wall of the leading-out connecting sleeve is divided into a first outer side wall provided with external threads, a second outer side wall used for being sleeved with the first sealing ring and a third outer side wall used for being sleeved with the flameproof connecting body, and the first outer side wall, the second outer side wall and the third outer side wall are sequentially gradually enlarged along the axis of the leading-out connecting sleeve and distributed in a step shape; the leading-out connecting sleeve with the stepped outer side wall is arranged, so that the installation between the explosion-proof connecting body and the leading-out connecting sleeve is more convenient, and the installation of the first sealing ring and the pressing cap is also convenient.

Preferably, the explosion-proof connector is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are distributed in a step shape; the first mounting hole is sleeved on the third outer side wall, and the pressing cap is positioned in the second mounting hole; the installation between the explosion-proof connector and the leading-out connecting sleeve is convenient, and the installation of the pressing cap is also convenient.

Preferably, the pressing cap is of an annular structure, the inner side wall of the pressing cap is provided with internal threads, the pressing cap is fixed with the first outer side wall in a threaded connection mode, one end of the pressing cap is provided with a circle of limiting grooves which are distributed opposite to the second outer side wall, the first sealing ring is placed between the limiting grooves and the second outer side wall, and the first sealing ring is tightly pressed and sealed through screwing of the pressing cap and the leading-out connecting sleeve; therefore, the screw connection between the pressing cap and the leading-out connecting sleeve is convenient in a threaded connection mode, and meanwhile, the sealing effect is better by arranging the limiting groove.

Preferably, the end face of the other end of the pressing cap is provided with at least two counter bores which are convenient for the pressing cap to be screwed; the pressing cap is convenient to screw, install and disassemble.

Preferably, the limiting block and the end wall of the opening end are integrally bent and formed; the processing is more convenient and the strength of the leading-out connecting sleeve is better.

Preferably, the explosion-proof assembly further comprises a binding post, and the binding post is fixed on the explosion-proof connecting body and is positioned in the explosion-proof cover; therefore, the wiring section is arranged in the explosion-proof assembly, and the explosion-proof use requirement can be met.

Preferably, one end of the explosion-proof cover is provided with a circle of bulges, one end of the explosion-proof connector matched with the bulges is provided with a circle of grooves, and the outer side wall of each bulge is provided with a circle of placing grooves for placing the second sealing ring; when the explosion-proof cover and the explosion-proof connecting body are installed, the protrusion is embedded in the groove; the assembly between the explosion-proof cover and the explosion-proof connecting body is convenient, and the sealing effect is achieved.

Preferably, the cast electromagnetic coil further comprises a coil assembly, the coil assembly is mounted in the housing, and the housing is covered by a cover plate; the coil assembly comprises a framework, a magnetizer and an electric protection device, the electric protection device is connected with the cable and is fixedly connected with the magnetizer, the magnetizer is positioned outside the framework, an enameled wire is wound on the framework, and the coil assembly, the housing and the leading-out connecting sleeve are integrally molded by adopting unsaturated resin or epoxy resin; the unsaturated resin is integrally injected or the epoxy resin is injected and molded, so that the explosion-proof function is realized, and the advantages of impact resistance, static resistance, moisture resistance, flame retardance and the like are realized.

Drawings

Fig. 1 is the utility model discloses a combined type seals flame-proof type solenoid owner and sees section structure schematic diagram.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

The reference numbers in the figures are respectively: 1. an encapsulated electromagnetic coil; 2. an explosion-proof assembly; 3. leading out a connecting sleeve; 4. pressing the cap; 5. a first seal ring; 6. a second seal ring; 11. a housing; 12. a cable; 13. a coil assembly; 14. a cover plate; 21. an explosion-proof connector; 22. an explosion-proof cover; 23. a binding post; 31. an open end; 32. a limiting block; 33. inserting holes; 34. a first outer side wall; 35. a second outer sidewall; 36. a third exterior side wall; 41. a limiting groove; 42. a counter bore; 11-1, a through hole; 13-1, a framework; 13-2, a magnetizer; 13-3, an electrical protection device; 13-4, enamelled wires; 21-1, a first mounting hole; 21-2, a second mounting hole; 21-3, a groove; 22-1, an interface; 22-2, bulges; 22-3, placing grooves.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: as shown in attached figures 1 and 2, the utility model comprises a pouring type electromagnetic coil 1 and an explosion-proof component 2, wherein the pouring type electromagnetic coil 1 comprises a housing 11 and a cable 12, a through hole 11-1 is arranged on one side wall of the housing 11, and a leading-out connecting sleeve 3 for leading out the cable 12 is arranged through the through hole 11-1; the explosion-proof component 2 comprises an explosion-proof connecting body 21 and an explosion-proof cover 22, the explosion-proof cover 22 is fixed on the explosion-proof connecting body 21 through a bolt component, the explosion-proof connecting body 21 is sleeved on the leading-out connecting sleeve 3, the leading-out connecting sleeve 3 is connected with a pressure cap 4, and the explosion-proof connecting body 21 is fixed on one side of the housing 11 through the pressure cap 4; the explosion-proof cover 22 is provided with an interface 22-1 for connecting an explosion-proof joint.

One end of the leading-out connecting sleeve 3 is an opening end 31, a circle of limiting blocks 32 are arranged at the opening end 31, and the limiting blocks 32 are abutted against the inner side wall of the housing 11; the other end of the leading-out connecting sleeve 3 far away from the opening end 31 is provided with a through-inserting hole 33 for inserting the cable 12; the stopper 32 and the end wall of the opening end 31 are integrally formed by bending.

The outer side wall of the leading-out connecting sleeve 3 is divided into a first outer side wall 34 provided with external threads, a second outer side wall 35 used for being sleeved with the first sealing ring 5 and a third outer side wall 36 used for being sleeved with the explosion-proof connecting body 21, and the first outer side wall 34, the second outer side wall 35 and the third outer side wall 36 are sequentially gradually enlarged along the axis of the leading-out connecting sleeve 3 and distributed in a step shape. The explosion-proof connector 21 is provided with a first mounting hole 21-1 and a second mounting hole 21-2, and the first mounting hole 21-1 and the second mounting hole 21-2 are distributed in a step shape; the first mounting hole 21-1 is sleeved on the third outer side wall 36, and the pressing cap 4 is positioned in the second mounting hole 21-2. The pressure cap 4 is the annular column structure, and the inside wall of pressure cap 4 is equipped with the internal thread, and it is fixed through the threaded connection mode between pressure cap 4 and the first lateral wall 34, and the one end of pressure cap 4 is equipped with the spacing groove 41 that the round is relative distribution with second lateral wall 35, and first sealing washer 5 is placed between spacing groove 41 and second lateral wall 35 to through pressure cap 4 and drawing screwing of adapter sleeve 3 and compress tightly first sealing washer 5 and realize sealing. The end face of the other end of the press cap 4 is provided with at least two counter bores 42 for facilitating the screwing of the press cap 4.

The flameproof component 2 further comprises a binding post 23, and the binding post 23 is fixed on the flameproof connecting body 21 and is positioned in the flameproof cover 22.

One end of the explosion-proof cover 22 is provided with a circle of bulges 22-2, one end of the explosion-proof connector 21 matched with the bulges 22-2 is provided with a circle of grooves 21-3, and the outer side wall of the bulges 22-2 is provided with a circle of placing grooves 22-3 for placing the second sealing ring 6; when the explosion-proof cover 22 and the explosion-proof connecting body 21 are installed, the protrusion 22-2 is embedded in the groove 21-3.

The cast type electromagnetic coil 1 further comprises a coil component 13, wherein the coil component 13 is installed in the housing 11, and the cover plate 14 is covered on the housing 22; the coil component 13 comprises a framework 13-1, a magnetizer 13-2 and an electric protection device 13-3, wherein the electric protection device 13-3 is connected with the cable 12, the electric protection device 13-3 is fixedly connected with the magnetizer 13-2, the magnetizer 13-2 is positioned outside the framework 13-1, an enameled wire 13-4 is wound on the framework 13-1, and the coil component 13, the housing 11 and the leading-out connecting sleeve 3 are integrally molded by injection molding through unsaturated resin. The housing 11 and the cover plate 14 are made of iron plates or stainless steel, the housing 11 is formed by a cold rolling and stretching process, and the cover plate 14 is provided with exhaust holes in a punch forming mode.

The utility model discloses not be limited to above-mentioned embodiment, no matter make any change on its shape or material constitution, all adopt the utility model provides a structural design all is the utility model discloses a warp, all should consider to be in within the protection scope of the utility model.

Claims

1. The utility model provides a modular encapsulation flame proof type solenoid, includes encapsulation type solenoid (1) and flame proof subassembly (2), its characterized in that: the cast electromagnetic coil (1) comprises a housing (11) and a cable (12), wherein a through hole (11-1) is formed in one side wall of the housing (11), and a lead-out connecting sleeve (3) for leading out the cable (12) is installed through the through hole (11-1); the explosion-proof assembly (2) comprises an explosion-proof connecting body (21) and an explosion-proof cover (22), the explosion-proof cover (22) is fixed on the explosion-proof connecting body (21), the explosion-proof connecting body (21) is sleeved on the leading-out connecting sleeve (3), the leading-out connecting sleeve (3) is connected with a pressing cap (4), and the explosion-proof connecting body (21) is fixed on one side of the housing (11) through the pressing cap (4); and the explosion-proof cover (22) is provided with an interface (22-1) for connecting an explosion-proof joint.

2. The combined type pouring flame-proof electromagnetic coil according to claim 1, characterized in that: one end of the leading-out connecting sleeve (3) is an opening end (31), a circle of limiting block (32) is arranged at the opening end (31), and the limiting block (32) is abutted against the inner side wall of the housing (11); and the other end of the leading-out connecting sleeve (3) far away from the opening end (31) is provided with a through-inserting hole (33) for the cable (12) to penetrate through.

3. The combined type pouring flame-proof electromagnetic coil according to claim 1 or 2, characterized in that: the outer wall of the leading-out connecting sleeve (3) is divided into a first outer wall (34) with an external thread, a second outer wall (35) used for being sleeved with a first sealing ring (5) and a third outer wall (36) used for being sleeved with an explosion-proof connecting body (21), and the first outer wall (34), the second outer wall (35) and the third outer wall (36) sequentially follow the axis of the leading-out connecting sleeve (3) is gradually enlarged and is distributed in a step shape.

4. The combined type pouring and explosion-proof electromagnetic coil as claimed in claim 3, wherein: the explosion-proof connector (21) is provided with a first mounting hole (21-1) and a second mounting hole (21-2), and the first mounting hole (21-1) and the second mounting hole (21-2) are distributed in a step shape; the first mounting hole (21-1) is sleeved on the third outer side wall (36), and the pressing cap (4) is located in the second mounting hole (21-2).

5. The combined type pouring flame-proof electromagnetic coil according to claim 4, characterized in that: the pressure cap (4) is the annular column structure, the inside wall of pressure cap (4) is equipped with the internal thread, pressure cap (4) with it is fixed through the threaded connection mode between first lateral wall (34), just the one end of pressure cap (4) be equipped with the round with second lateral wall (35) are relative distribution's spacing groove (41), first sealing washer (5) are placed spacing groove (41) with between second lateral wall (35), and pass through press cap (4) with draw forth screwing of adapter sleeve (3) and compress tightly first sealing washer (5) and realize sealedly.

6. The combined type pouring flame-proof electromagnetic coil according to claim 5, characterized in that: the end face of the other end of the pressing cap (4) is provided with at least two counter bores (42) which are convenient for the pressing cap (4) to be screwed.

7. The combined type pouring and explosion-proof electromagnetic coil as claimed in claim 2, wherein: the limiting block (32) and the end wall of the opening end (31) are integrally bent and formed.

8. The combined type pouring flame-proof electromagnetic coil according to claim 1, characterized in that: the flameproof component (2) further comprises a binding post (23), and the binding post (23) is fixed on the flameproof connecting body (21) and located in the flameproof cover (22).

9. The combined type pouring flame-proof electromagnetic coil according to claim 1, characterized in that: one end of the explosion-proof cover (22) is provided with a circle of bulges (22-2), one end of the explosion-proof connecting body (21) matched with the bulges (22-2) is provided with a circle of grooves (21-3), and the outer side wall of the bulges (22-2) is provided with a circle of placing grooves (22-3) for placing the second sealing ring (6); when the explosion-proof cover (22) and the explosion-proof connecting body (21) are installed, the protrusion (22-2) is embedded in the groove (21-3).

10. The combined type pouring flame-proof electromagnetic coil according to claim 1, characterized in that: the cast electromagnetic coil (1) further comprises a coil component (13), the coil component (13) is installed in the housing (11), and a cover plate (14) is covered on the housing (11); coil pack (13) are including skeleton (13-1), magnetizer (13-2) and electric protection device (13-3), electric protection device (13-3) with cable (12) are connected, just electric protection device (13-3) with magnetizer (13-2) looks fixed connection, magnetizer (13-2) are located outside skeleton (13-1), around having enameled wire (13-4) on skeleton (13-1), coil pack (13) with housing (11) and draw and adopt unsaturated resin an organic whole to mould plastics or epoxy resin infusion molding between adapter sleeve (3).