CN219226043U - High-temperature-resistant explosion-proof control coil - Google Patents

Abstract

The utility model discloses a high-temperature-resistant explosion-proof control coil, which relates to the technical field of electromagnetic valve spare and accessory parts and comprises a rear shell and a front cover sleeved at the front part of the rear shell, wherein a cable is fixedly penetrated at the top of the rear shell, a framework is sleeved at the inner side of the rear shell, an elastic sheet is inserted at the outer part of the framework, base plates are inserted at the front part and the rear part of the elastic sheet, and the base plates are arranged in a gap between the framework and the front cover and the rear shell. According to the utility model, the air gap is reserved between the coil winding and the framework through the elastic sheet, so that the bonding area between the coil winding and the framework is reduced, the heat radiating area of the inner side of the coil is increased, heat can circulate and disperse in the inner side of the equipment shell through a gaseous medium in the air gap, and the heat accumulation problem of the inner side of the coil is reduced. Through the setting of shell fragment for when the coil is disassembled, can pop out from the casing inboard fast, and with the skeleton separation, the replacement maintenance of spare part and the categorised recovery of disassembling of different material structures of being convenient for.

Description

High-temperature-resistant explosion-proof control coil

Technical Field

The utility model relates to the technical field of electromagnetic valve spare and accessory parts, in particular to a high-temperature-resistant explosion-proof control coil.

Background

The coil fuse is mainly caused by low heat accumulation and dissipation efficiency generated when the coil is electrified.

The bonding surface between the coil winding and the shell tooling of the existing electromagnetic valve is large, the movable iron core is penetrated and arranged at the inner side of the coil by the tubular limiting piece, and the outer circumferential surface of the tubular limiting piece is wound by the coil winding, so that the area of the heat dissipation surface of the inner ring of the coil winding is smaller than that of the outer circumferential surface of the inner ring of the coil winding, the heat accumulation at the inner side of the coil is serious, and the temperature difference between the inner side and the outer side of the coil can be obviously observed for the electromagnetic valve with higher power and normal continuous power.

In order to balance heat dissipation efficiency of the inner side and the outer side of the coil and improve high-temperature-resistant and explosion-proof performances of the coil, a new coil tooling structure is urgently needed.

Disclosure of Invention

Based on the above, the utility model aims to provide a high-temperature-resistant explosion-proof control coil so as to solve the technical problems of the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high temperature resistant explosion-proof control coil, includes backshell and cover establishes at the anterior protecgulum of backshell, the top of backshell runs through and is fixed with the cable, the inboard cover of backshell is equipped with the skeleton, peg graft in the outside of skeleton has the shell fragment, the backing plate has all been peg graft in the front and back portion of shell fragment, the backing plate sets up in the clearance between skeleton and protecgulum and backshell.

The shell fragment includes the slice body, the slice body is whole to be M type structure, both ends all are provided with counterpoint portion around the slice body, the front portion and the rear portion of slice body all are provided with grafting portion, grafting portion inserts the front and back portion at the skeleton, the middle part of slice body is provided with sharp portion, the surface of sharp portion is provided with the wire casing.

The opposite surfaces of the backing plate on the front side and the rear side are provided with alignment grooves, and the alignment parts are inserted into the inner sides of the alignment grooves.

Through adopting above-mentioned technical scheme, when shell fragment and skeleton assembly are inboard at the backshell, the inflection point of shell fragment grafting portion is contradicted the circumference curved surface of backshell inboard for grafting portion elastic deformation, grafting portion shrink and insert the slot, accumulate and maintain the expansion trend of skew skeleton axial lead.

The front cover is riveted and fixed to the rear shell, so that the front backing plate and the rear backing plate move in opposite directions, the front opening and the rear opening of the plug part are reduced, and the plug part accumulates and maintains the expansion trend of front-rear separation.

Because the folding deformation of the inserting part at this time makes the straight line part tightly prop against the circumference curved surface at the outer side of the middle part of the framework, and the elastic sheet is firmly fixed on the surface of the framework.

The coil is wound on the inner side of the wire sleeve groove and separated by the elastic sheet, an air gap is reserved between the inner surface of the coil and the framework, and when the coil is electrified, the heat of the coil can circulate and dissipate through the air gap, so that the coil is prevented from being burnt at high temperature due to heat accumulation.

When the coil is damaged, maintained or disassembled and recovered, the front cover is disassembled, the plug-in part releases elastic potential energy, the plug-in part expands backwards in advance, the framework and the coil are synchronously pushed to the front opening of the rear shell, when the plug-in part is separated from the inner side of the rear shell, the plug-in part deviates from the axis line of the framework to expand, the plug-in part is unlocked from the inner side of the slot, and at the moment, the coil can be separated from the framework, so that the rapid disassembly operation is realized.

The utility model is further characterized in that a plasticizing integrated wiring tube is arranged at the top of the rear shell, and the cable is sleeved on the inner side of the wiring tube and is connected with a wiring terminal arranged at the front part of the framework.

By adopting the technical scheme, the rubber plug is sleeved on the inner side of the wire connecting tube, the rubber plug is sleeved outside the cable, and the port of the wire connecting tube is sealed.

The utility model further provides that the front cover and the rear shell are riveted and fixed.

Through adopting above-mentioned technical scheme, the terminal surface in backshell front portion is provided with the rivet joint, and the riveting hole of lining up front and back is seted up at the outer edge of protecgulum, and rivet joint cover is established at riveting hole inboard fixed protecgulum and backshell.

The utility model is further arranged that the middle part of the framework is tubular, and the front part and the rear part of the framework are annular.

The annular edges of the front part and the rear part of the framework are provided with slots, and the inserting parts are inserted into the inner sides of the slots.

Through adopting above-mentioned technical scheme, the grafting portion one-to-one of slot and shell fragment, the fore-and-aft direction thickness of slot is less than the fore-and-aft direction opening width of grafting portion, and when the encapsulation was established to the back shell cover to the protecgulum, the front and back end of backing plate extrusion shell fragment took place deformation, impels the opening size reduction of grafting portion and matches with the slot gradually.

The utility model is further arranged in an annular array along the axial lead of the framework.

Through adopting above-mentioned technical scheme, the wiring connects the coil on the straight line portion of slice body, and the slice body supports fixedly the coil to separate coil inboard and skeleton surface, leave sufficient heat dissipation clearance.

The utility model further provides that the alignment part is of a wedge-shaped structure, and the alignment groove is matched with the alignment part in shape.

Through adopting above-mentioned technical scheme, when the back backing plate extrudees the shell fragment in opposite directions, through the direction of alignment groove, alignment portion can deform and draw in to the axial lead of skeleton, makes the inflection point of bending of grafting portion follow gradually and draws in, and the shell fragment of being convenient for is under the circumstances that keeps self elastic potential energy, conveniently embolias the assembly to the backshell inboard.

The utility model is further characterized in that the plug-in part is of a U-shaped structure, and the inflection point of the plug-in part presses against the circumferential curved surface on the inner side of the rear shell.

By adopting the technical scheme, when the framework is pulled out from the inner side of the rear shell, the inserting part releases self elastic potential energy, so that the inserting part is caused to deviate from the axis line of the framework to generate expansion action, and at the moment, the inserting part is separated from the slot, so that the unlocking of the elastic sheet and the framework is realized.

The utility model further provides that the wire sleeving grooves are distributed in the front-back direction at equal intervals, and the interval part between the front adjacent wire sleeving groove and the rear adjacent wire sleeving groove is of a trapezoid structure.

By adopting the technical scheme, the wire sleeving grooves are used for separating the wires of the coil, the distance between the wires of the coil is kept, the heat generation balanced distribution of the coil during electrifying is promoted, meanwhile, the winding of the guide wires is symmetrical, and the mechanical assembly is convenient.

In summary, the utility model has the following advantages:

according to the utility model, the air gap is reserved between the coil winding and the framework mainly through the elastic sheet, so that the bonding area between the coil winding and the framework is reduced, the heat dissipation area of the inner side of the coil is increased, heat can circulate and disperse in the inner side of the equipment shell through a gaseous medium in the air gap, and the heat accumulation problem of the inner side of the coil is reduced.

Through the setting of shell fragment for when the coil is disassembled, can pop out from the casing inboard fast, and with the skeleton separation, the replacement maintenance of spare part and the categorised recovery of disassembling of different material structures of being convenient for.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a longitudinal cross-sectional view of the present utility model;

FIG. 3 is a front-to-back expanded view of the present utility model;

FIG. 4 is an exploded view of the armature and spring of the present utility model;

fig. 5 is a schematic structural diagram of the spring plate of the present utility model.

In the figure: 1. a rear case; 101. a wire connection tube; 102. a connection terminal; 2. a front cover; 3. a cable; 4. a skeleton; 401. a slot; 5. a spring plate; 501. a sheet-like body; 502. an alignment part; 503. a plug-in part; 504. a straight line portion; 505. a wire sleeving groove; 6. a backing plate; 601. and (5) an alignment groove.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The utility model provides a high temperature resistant explosion-proof control coil, is shown as fig. 1 through 5, includes backshell 1 and cover and establishes at the preceding protecgulum 2 of backshell 1 front portion, and the top of backshell 1 runs through and is fixed with cable 3, and the inboard cover of backshell 1 is equipped with skeleton 4, and the outside grafting of skeleton 4 has shell fragment 5, and the back and forth part of shell fragment 5 has all been pegged graft backing plate 6, and backing plate 6 sets up in the clearance between skeleton 4 and protecgulum 2 and backshell 1.

The shell fragment 5 includes slice body 501, and slice body 501 wholly is M type structure, and both ends all are provided with counterpoint portion 502 around slice body 501, and the front portion and the rear portion of slice body 501 all are provided with grafting portion 503, and grafting portion 503 inserts the front and back portion at skeleton 4, and the middle part of slice body 501 is provided with sharp portion 504, and the surface of sharp portion 504 is provided with the wire casing groove 505.

The opposite surfaces of the front and rear backing plates 6 are provided with alignment grooves 601, and the alignment parts 502 are inserted into the inner sides of the alignment grooves 601.

When the elastic sheet 5 and the framework 4 are assembled inside the rear shell 1, the inflection point of the inserting portion 503 of the elastic sheet 5 abuts against the circumferential curved surface inside the rear shell 1, so that the inserting portion 503 is elastically deformed, the inserting portion 503 is contracted and inserted into the slot 401, and the expansion trend deviating from the axis of the framework 4 is accumulated and maintained.

The front cover 2 is riveted and fixed to the rear case 1, so that the front and rear backing plates 6 move in opposite directions, squeeze and reduce the size of the front and rear opening of the plug part 503, and the plug part 503 accumulates and maintains the expansion trend of the front and rear separation.

Because of the folding deformation of the inserting portion 503 at this time, the straight portion 504 is abutted against the circumferential curved surface of the outer side of the middle portion of the framework 4, and the elastic sheet 5 is firmly fixed on the surface of the framework 4.

The coil is wound on the inner side of the wire sleeve groove 505 and separated by the elastic sheet 5, an air gap is reserved between the inner surface of the coil and the framework 4, and when the coil is electrified, the heat of the coil can circulate and dissipate through the air gap, so that the coil is prevented from being burnt out at high temperature due to heat accumulation.

When the coil is damaged, maintained or disassembled and recovered, the front cover 2 is disassembled, the plug-in part 503 releases elastic potential energy, the plug-in part 503 expands backwards, the framework 4 and the coil are synchronously pushed to the front opening of the rear shell 1, when the plug-in part 503 is separated from the inner side of the rear shell 1, the plug-in part 503 deviates from the axial lead of the framework 4 to expand, the plug-in part is unlocked from the inner side of the slot 401, and at the moment, the coil can be separated from the framework 4, so that rapid disassembly operation is realized.

The top of backshell 1 is provided with the integrative wiring pipe 101 of plasticization, and cable 3 cover is established in the inboard of wiring pipe 101 and is linked to each other with the binding post 102 that skeleton 4 front portion set up. The connection terminal 102 is welded and fixed to the wire of the coil.

The inner side of the wire connection tube 101 is sleeved with a rubber plug, the rubber plug is sleeved outside the cable 3, and the port of the wire connection tube 101 is closed.

Referring to fig. 1, the front cover 2 and the rear case 1 form a riveting surface.

The end face of the front part of the rear shell 1 is provided with a rivet joint, the outer edge of the front cover 2 is provided with a rivet hole penetrating through the front and rear surfaces, and the rivet joint is sleeved on the inner side of the rivet hole to fix the front cover 2 and the rear shell 1.

The front-back depth of the back shell 1 is smaller than the front-back length of the elastic sheet 5 when the elastic sheet is extruded by no external force.

When the front cover 2 is sleeved at the front end opening of the rear shell 1, the front cover 2 presses the elastic sheet 5 backwards, so that the plug-in part 503 is caused to deform, the U-shaped opening size of the plug-in part 503 is reduced, and elastic potential energy is accumulated.

Referring to fig. 3, the middle part of the framework 4 is tubular, and the front and rear parts of the framework 4 are annular.

The annular edges of the front and rear parts of the framework 4 are provided with slots 401, and the inserting parts 503 are inserted into the inner sides of the slots 401.

The slots 401 are in one-to-one correspondence with the plug-in parts 503 of the spring 5, the front-to-back thickness of the slots 401 is smaller than the front-to-back opening width of the plug-in parts 503, and when the front cover 2 is sleeved with the rear cover 1, the backing plate 6 extrudes the front and back ends of the spring 5 to deform, so that the opening size of the plug-in parts 503 is reduced and gradually matched with the slots 401.

Referring to fig. 3 and 4, the sheet-shaped bodies 501 are arranged in an annular array along the axis of the skeleton 4.

The coil is wound on the straight line part 504 of the sheet-shaped body 501, the sheet-shaped body 501 supports and fixes the coil, and separates the inner side of the coil from the surface of the framework 4, and a foot heat dissipation gap is reserved.

Referring to fig. 4 and fig. 5, the alignment portion 502 has a wedge structure, and the alignment groove 601 is matched with the alignment portion 502.

When the front backing plate 6 extrudes the elastic sheet 5 in opposite directions, the alignment part 502 can deform and fold towards the axial lead of the framework 4 through the guide of the alignment groove 601, so that the bending point of the inserting part 503 is gradually followed and folded, and the elastic sheet 5 is convenient to sleeve and assemble towards the inner side of the rear shell 1 under the condition of keeping the elastic potential energy of the elastic sheet 5.

Referring to fig. 2 and 5, the insertion portion 503 is in a U-shaped structure, and the inflection point of the insertion portion 503 presses against the circumferential curved surface of the inner side of the rear housing 1.

When the framework 4 is pulled out from the inner side of the rear shell 1, the inserting part 503 releases elastic potential energy, so that the inserting part 503 deviates from the axis of the framework 4 to generate expansion action, and at the moment, the inserting part 503 is separated from the slot 401, so that the unlocking of the elastic sheet 5 and the framework 4 is realized.

Referring to fig. 4 and 5, the line sleeving grooves 505 are arranged in a front-back equidistant manner, and a space between two adjacent line sleeving grooves 505 is in a trapezoid structure.

The wire casing 505 is used for separating the wires of the coil, maintaining the distance between the wires of the coil, promoting the uniform distribution of heat generated when the coil is electrified, and simultaneously, the winding of the wire guiding wires is symmetrical, thereby being convenient for mechanical assembly.

According to the utility model, the air gap is reserved between the coil winding and the framework 4 through the elastic sheet 5 creatively, so that the bonding area between the coil winding and the framework 4 is reduced, the heat dissipation area of the inner side of the coil is increased, heat can be circulated and dispersed in the inner side of the equipment shell through a gaseous medium in the air gap, and the heat accumulation problem of the inner side of the coil is reduced.

Through the setting of shell fragment 5 for when the coil is disassembled, can pop out from the casing inboard fast, and with skeleton 4 separation, the replacement maintenance of spare part and the categorised recovery of disassembling of different material structures of being convenient for.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims (8)

1. The utility model provides a high temperature resistant explosion-proof control coil, includes backshell (1) and cover establish at preceding protecgulum (2) of backshell (1), the top of backshell (1) is run through and is fixed with cable (3), the inboard cover of backshell (1) is equipped with skeleton (4), its characterized in that: the outside of the framework (4) is inserted with an elastic sheet (5), the front part and the rear part of the elastic sheet (5) are inserted with a base plate (6), and the base plate (6) is arranged in a gap between the framework (4) and the front cover (2) and the rear shell (1);

the elastic sheet (5) comprises a sheet-shaped body (501), the sheet-shaped body (501) is of an M-shaped structure as a whole, alignment parts (502) are arranged at the front end and the rear end of the sheet-shaped body (501), plug-in parts (503) are arranged at the front part and the rear part of the sheet-shaped body (501), the plug-in parts (503) are inserted into the front part and the rear part of a framework (4), a straight line part (504) is arranged in the middle of the sheet-shaped body (501), and a wire sleeving groove (505) is formed in the surface of the straight line part (504);

the opposite surfaces of the backing plate (6) at the front side and the rear side are provided with alignment grooves (601), and the alignment parts (502) are inserted into the inner sides of the alignment grooves (601).

2. The high temperature resistant explosion proof control coil according to claim 1, wherein: the top of backshell (1) is provided with integrative wiring tube (101) of plasticization, cable (3) cover is established in the inboard of wiring tube (101) and is linked to each other with binding post (102) that skeleton (4) front portion set up.

3. The high temperature resistant explosion proof control coil according to claim 1, wherein: the front cover (2) and the rear shell (1) are riveted and fixed.

4. The high temperature resistant explosion proof control coil according to claim 1, wherein: the middle part of the framework (4) is tubular, and the front part and the rear part of the framework (4) are annular;

the annular edges of the front part and the rear part of the framework (4) are provided with slots (401), and the inserting parts (503) are inserted into the inner sides of the slots (401).

5. The high temperature resistant explosion proof control coil according to claim 1, wherein: the flaky bodies (501) are distributed in an annular array along the axial lead of the framework (4).

6. The high temperature resistant explosion proof control coil according to claim 1, wherein: the alignment part (502) is of a wedge-shaped structure, and the alignment groove (601) is matched with the alignment part (502) in shape.

7. The high temperature resistant explosion proof control coil according to claim 1, wherein: the plug-in part (503) is of a U-shaped structure, and the inflection point of the plug-in part (503) presses against the circumferential curved surface on the inner side of the rear shell (1).

8. The high temperature resistant explosion proof control coil according to claim 1, wherein: the line sleeving grooves (505) are distributed at equal intervals in the front-back direction, and the interval part between the front line sleeving groove and the back line sleeving groove (505) is of a trapezoid structure.

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