CN110702249B - Armored thermocouple junction box and sealing method thereof - Google Patents

Armored thermocouple junction box and sealing method thereof Download PDF

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Publication number
CN110702249B
CN110702249B CN201911131196.7A CN201911131196A CN110702249B CN 110702249 B CN110702249 B CN 110702249B CN 201911131196 A CN201911131196 A CN 201911131196A CN 110702249 B CN110702249 B CN 110702249B
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China
Prior art keywords
sealing
socket
connecting cylinder
junction box
cable
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CN201911131196.7A
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CN110702249A (en
Inventor
杨学青
韩国平
陈建定
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Anhui Qingrun Precision Technology Co ltd
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Anhui Qingrun Precision Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G01K7/023—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples provided with specially adapted connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means

Abstract

The invention discloses an armored thermocouple junction box, which comprises a junction box body, a socket and an armored cable, wherein the upper end and the lower end of the middle part of a partition plate are respectively provided with an upper connecting cylinder and a lower connecting cylinder, a sealing plate is connected in the lower connecting cylinder through a spring, the bottom of the sealing plate is connected with an inner sealing cylinder, a cable connector at the upper end of the armored cable passes through a threaded hole at the bottom of the junction box body and then is simultaneously screwed on the outer side of the inner sealing cylinder and the inner side of the lower connecting cylinder, a socket connector at the lower end of the socket is screwed in the upper connecting cylinder, a wire core at the upper end of the middle part of the armored cable is connected to a wire core at the lower end of the middle part of the socket through a transfer coupling wire, the outer side of the socket is also sleeved with a T-shaped threaded sleeve cylinder, and, and the upper end and the bottom of the junction box body are well sealed, so that water is effectively prevented from entering the junction box.

Description

Armored thermocouple junction box and sealing method thereof
Technical Field
The invention belongs to the technical field of junction boxes, particularly relates to an armored thermocouple junction box, and further relates to a sealing method of the armored thermocouple junction box.
Background
The armored thermocouple is connected in the junction box, all parts of the armored thermocouple are required to be connected with the junction box, the existing junction box and all parts are complex in combined connection, operation is not easy, and the junction of the upper end and the bottom of the junction box cannot be effectively sealed after connection and installation, so that sealing performance is poor, water is easy to enter, and damage is caused.
Disclosure of Invention
The invention aims to provide an armored thermocouple junction box and a sealing method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an armored thermocouple junction box comprises a junction box body, a socket and an armored cable, wherein an upper sealing cavity and a lower sealing cavity are formed in the junction box body through a partition plate, an upper connecting cylinder and a lower connecting cylinder are respectively arranged at the upper end and the lower end of the middle part of the partition plate, a sealing plate is connected in the lower connecting cylinder through a spring, an inner sealing cylinder is connected to the bottom of the sealing plate, a cable connector at the upper end of the armored cable penetrates through a threaded hole at the bottom of the junction box body and is simultaneously screwed on the outer side of the inner sealing cylinder and the inner side of the lower connecting cylinder, a socket connector at the lower end of the socket is screwed in the upper connecting cylinder, a cable core at the upper end of the middle part of the armored cable is connected to a cable core at the lower end of the middle part of the socket through a transfer coupling wire, a T-, the lower end of the T-shaped threaded sleeve-connection barrel props against the upper end of the sealing bulge at the bottom of the socket.
Preferably, the cable connector and the lower sealing cavity outside the lower connecting cylinder are filled with an alumina cement layer.
Preferably, the bottom of the cable connector is provided with an annular sealing ring for sealing the threaded hole, and the armored cable, the cable connector and the annular sealing ring are integrally formed.
Preferably, the adapter coupling wire is welded with the wire core at the upper end of the middle part of the armored cable and the wire core at the lower end of the middle part of the socket.
Preferably, the adapter coupling wire sequentially penetrates through the inner sealing cylinder, the sealing plate, the spring, the threading hole in the middle of the partition plate and the socket connector.
Preferably, the upper sealing cavities on the outer sides of the socket connector and the upper connecting cylinder are filled with enamel frit layers.
The invention also provides a sealing method of the armored thermocouple junction box, which specifically comprises the following steps:
s1, after a cable connector at the upper end of the armored cable passes through a threaded hole at the bottom of the junction box body, the cable connector is simultaneously screwed to the outer side of the inner sealing barrel and the inner side of the lower connecting barrel;
s2, screwing a socket connector at the lower end of the socket into the upper connecting cylinder, and screwing a T-shaped threaded sleeve connected to the outer side of the socket into an upper sealing cavity of the junction box body, so that the lower end of the T-shaped threaded sleeve abuts against the upper end of a sealing bulge at the bottom of the socket;
s3, sequentially penetrating through the inner sealing cylinder, the sealing plate, the spring, the threading hole in the middle of the partition plate and the socket connector by the adapter wire welded with the wire core at the upper end of the middle part of the armored cable, and finally welding the adapter wire to the wire core at the lower end of the middle part of the socket;
and S4, finally, filling an alumina cement layer in the lower sealing cavities on the outer sides of the cable connector and the lower connecting cylinder, and filling an enamel powder layer in the upper sealing cavities on the outer sides of the socket connector and the upper connecting cylinder.
Compared with the prior art, the invention has the beneficial effects that: the armored thermocouple junction box and the sealing method thereof provided by the invention have the advantages that the combination and installation among the components are simple and easy to operate, the sealing performance on the upper end and the bottom of the junction box body is good, and the water inflow in the interior is effectively prevented.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a schematic cross-sectional view of the junction box body of the present invention.
In the figure: the junction box comprises a junction box body 1, a 2T-shaped threaded sleeve joint barrel, a 3 socket, a 4 sealing bulge, a 5 enamel powder layer, a 6 transfer coupling wire, a 7 partition plate, an 8 alumina cement layer, a 9 armored cable, a 10 annular sealing ring, a 11 cable connector, a 12 inner sealing barrel, a 13 spring, a 14 lower connecting barrel, a 15 upper sealing cavity, a 16 upper connecting barrel, a 17 sealing plate, a 18 sealing plate, a 19 lower sealing cavity, a 20 threaded hole and a 21 socket connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides an armored thermocouple junction box as shown in figures 1-3, which comprises a junction box body 1, a socket 3 and an armored cable 9, wherein an upper sealing cavity 15 and a lower sealing cavity 19 are formed in the junction box body 1 through a partition plate 7, an upper connecting cylinder 16 and a lower connecting cylinder 14 are respectively arranged at the upper end and the lower end of the middle part of the partition plate 7, a sealing plate 18 is connected in the lower connecting cylinder 14 through a spring 13, an inner sealing cylinder 12 is connected at the bottom of the sealing plate 18, a cable connector 11 at the upper end of the armored cable 9 passes through a threaded hole 20 at the bottom of the junction box body 1 and is simultaneously screwed on the outer side of the inner sealing cylinder 12 and the inner side of the lower connecting cylinder 14, a socket connector 21 at the lower end of the socket 3 is screwed in the upper connecting cylinder 16, a wire core at the upper end of the armored cable 9 is connected to a wire core at the lower end of the middle part of the, the T-shaped threaded sleeve barrel 2 is in threaded connection with the upper sealing cavity 15 of the junction box body 1, and the lower end of the T-shaped threaded sleeve barrel 2 abuts against the upper end of the sealing bulge 4 at the bottom of the socket 3.
Specifically, the lower sealed cavity 19 outside the cable connector 11 and the lower connecting cylinder 14 is filled with the alumina cement layer 8.
Specifically, 11 bottoms of cable connector are equipped with the ring packing 10 that is used for sealed screw hole 20, armoured cable 9, cable connector 11 and ring packing 10 set up for integrated into one piece.
Specifically, the adapter coupling wire 6 is welded with the wire core at the upper end of the middle part of the armored cable 9 and the wire core at the lower end of the middle part of the socket 3.
Specifically, the adapter coupling wire 6 sequentially penetrates through the inner sealing cylinder 12, the sealing plate 18, the spring 13, the threading hole 17 in the middle of the partition plate 7 and the socket connector 21.
Specifically, the upper sealed cavity 15 outside the socket connector 21 and the upper connecting cylinder 16 is filled with an enamel frit layer 5.
The invention also provides a sealing method of the armored thermocouple junction box, which specifically comprises the following steps:
s1, after the cable connector 11 at the upper end of the armored cable 9 passes through the threaded hole 20 at the bottom of the junction box body 1, the cable connector is simultaneously screwed on the outer side of the inner sealing barrel 12 and the inner side of the lower connecting barrel 14;
s2, screwing the socket connector 21 at the lower end of the socket 3 into the upper connecting cylinder 16, and screwing the T-shaped threaded socket cylinder 2 which is also sleeved outside the socket 3 into the upper sealing cavity 15 of the junction box body 1, so that the lower end of the T-shaped threaded socket cylinder 2 is propped against the upper end of the sealing bulge 4 at the bottom of the socket 3;
s3, an adapter wire 6 welded with a wire core at the upper end of the middle part of the armored cable 9 penetrates through the inner sealing cylinder 12, the sealing plate 18, the spring 13, the threading hole 17 in the middle part of the clapboard 7 and the socket connector 21 in sequence, and is finally welded with the wire core at the lower end of the middle part of the socket 3;
and S4, finally, filling the alumina cement layer 8 in the lower sealed cavity 19 on the outer sides of the cable connector 11 and the lower connecting cylinder 14, and filling the enamel powder layer 5 in the upper sealed cavity 15 on the outer sides of the socket connector 21 and the upper connecting cylinder 16.
In summary, compared with the prior art, according to the invention, through the arrangement that the cable connector 11 at the upper end of the armored cable 9 penetrates through the threaded hole 20 at the bottom of the junction box body 1 and is simultaneously screwed on the outer side of the inner sealing cylinder 12 and the inner side of the lower sealing cylinder 14, the wire core at the upper end of the middle part of the armored cable 9 can be completely sealed in the lower connecting cylinder 14, the cable connector 11 and the inner sealing cylinder 12, and the aluminum oxide cement layer 8 is filled in the lower sealing cavity 19 at the outer sides of the cable connector 11 and the lower connecting cylinder 14, the sealing effect on the bottom of the junction box body 1 is further improved;
through in last connecting cylinder 16 with socket connector 21 spiro union of socket 3 lower extreme, the T type screw socket 2 spiro union that still cup joints in the socket 3 outside again is in the last sealed chamber 15 of terminal box body 1, make the lower extreme of T type screw socket 2 support the upper end in the sealed protruding 4 of socket 3 bottom, make the sinle silk of socket 3 middle part lower extreme can seal completely inside last connecting cylinder 16 and socket connector 21, it is filled with enamel powder bed of material 5 to go up sealed chamber 15 intussuseption in the socket connector 21 and the last connecting cylinder 16 outside again, further improve the sealed effect to terminal box body 1 upper end.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (1)

1. A sealing method of an armored thermocouple junction box is characterized by comprising the following steps:
armoured thermocouple terminal box, it includes terminal box body (1), socket (3) and armoured cable (9), its characterized in that: an upper sealing cavity (15) and a lower sealing cavity (19) are formed in the junction box body (1) through a partition plate (7), an upper connecting cylinder (16) and a lower connecting cylinder (14) are respectively arranged at the upper end and the lower end of the middle part of the partition plate (7), a sealing plate (18) is connected in the lower connecting cylinder (14) through a spring (13), an inner sealing cylinder (12) is connected at the bottom of the sealing plate (18), a cable connector (11) at the upper end of the armored cable (9) penetrates through a threaded hole (20) at the bottom of the junction box body (1) and is simultaneously screwed in the outer side of the inner sealing cylinder (12) and the inner side of the lower connecting cylinder (14), a socket connector (21) at the lower end of the socket (3) is screwed in the upper connecting cylinder (16), and a cable core at the upper end of the middle part of the armored cable (9) is connected to a cable core at the lower, the outer side of the socket (3) is further sleeved with a T-shaped threaded sleeve joint barrel (2), the T-shaped threaded sleeve joint barrel (2) is in threaded connection with an upper sealing cavity (15) of the junction box body (1), and the lower end of the T-shaped threaded sleeve joint barrel (2) abuts against the upper end of a sealing bulge (4) at the bottom of the socket (3);
an alumina cement layer (8) is filled in a lower sealing cavity (19) on the outer sides of the cable connector (11) and the lower connecting cylinder (14); the bottom of the cable connector (11) is provided with an annular sealing ring (10) for sealing a threaded hole (20), and the armored cable (9), the cable connector (11) and the annular sealing ring (10) are integrally formed; the adapter coupling wire (6) is welded with a wire core at the upper end of the middle part of the armored cable (9) and a wire core at the lower end of the middle part of the socket (3); the adapter coupling wire (6) sequentially penetrates through the inner sealing barrel (12), the sealing plate (18), the spring (13), the threading hole (17) in the middle of the partition plate (7) and the socket connector (21); an enamel powder layer (5) is filled in the upper sealing cavity (15) at the outer sides of the socket connector (21) and the upper connecting cylinder (16);
the sealing method of the armored thermocouple junction box specifically comprises the following steps:
s1, after a cable connector (11) at the upper end of an armored cable (9) passes through a threaded hole (20) at the bottom of the junction box body (1), the cable connector is simultaneously screwed on the outer side of the inner sealing cylinder (12) and the inner side of the lower connecting cylinder (14);
s2, screwing the socket connector (21) at the lower end of the socket (3) into the upper connecting cylinder (16), and screwing the T-shaped threaded sleeve joint cylinder (2) which is also sleeved outside the socket (3) into the upper sealing cavity (15) of the junction box body (1) so that the lower end of the T-shaped threaded sleeve joint cylinder (2) is propped against the upper end of the sealing bulge (4) at the bottom of the socket (3);
s3, an adapter wire (6) welded with a wire core at the upper end of the middle part of the armored cable (9) penetrates through the inner sealing cylinder (12), the sealing plate (18), the spring (13), the threading hole (17) at the middle part of the partition plate (7) and the socket connector (21) in sequence and is finally welded with the wire core at the lower end of the middle part of the socket (3);
and S4, finally, filling an alumina cement layer (8) in a lower sealing cavity (19) on the outer sides of the cable connector (11) and the lower connecting cylinder (14), and filling an enamel powder layer (5) in an upper sealing cavity (15) on the outer sides of the socket connector (21) and the upper connecting cylinder (16).
CN201911131196.7A 2019-11-19 2019-11-19 Armored thermocouple junction box and sealing method thereof Active CN110702249B (en)

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CN110702249B true CN110702249B (en) 2020-12-29

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113074823B (en) * 2021-03-26 2021-11-16 深圳市智佳能自动化有限公司 Thermocouple of equipment is sealed to wafer specially used for

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926166A1 (en) * 2008-01-08 2009-07-10 Ge Energy Products France Snc Temperature measuring system for combustion turbine, has coating material in which ends of connection wires of extension cables and adjacent end parts of associated sheaths are embedded at inner side of coating material
CN103090988A (en) * 2012-12-27 2013-05-08 中航(苏州)雷达与电子技术有限公司 Sheathed thermocouple junction box and sealing method thereof
CN205483316U (en) * 2016-02-27 2016-08-17 深圳市泰士特科技股份有限公司 Large -scale hydraulic turbine high reliability stator temperature sensor
CN206330681U (en) * 2016-12-08 2017-07-14 苏州长风航空电子有限公司 A kind of armoured thermocouple signal output apparatus
CN106996836A (en) * 2017-04-20 2017-08-01 安徽春辉仪表线缆集团有限公司 A kind of thermocouple structure of heat conduction measurement
CN109341882A (en) * 2018-10-19 2019-02-15 重庆材料研究院有限公司 The exchanging structure and preparation method thereof of armoured thermocouple cold end

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926166A1 (en) * 2008-01-08 2009-07-10 Ge Energy Products France Snc Temperature measuring system for combustion turbine, has coating material in which ends of connection wires of extension cables and adjacent end parts of associated sheaths are embedded at inner side of coating material
CN103090988A (en) * 2012-12-27 2013-05-08 中航(苏州)雷达与电子技术有限公司 Sheathed thermocouple junction box and sealing method thereof
CN205483316U (en) * 2016-02-27 2016-08-17 深圳市泰士特科技股份有限公司 Large -scale hydraulic turbine high reliability stator temperature sensor
CN206330681U (en) * 2016-12-08 2017-07-14 苏州长风航空电子有限公司 A kind of armoured thermocouple signal output apparatus
CN106996836A (en) * 2017-04-20 2017-08-01 安徽春辉仪表线缆集团有限公司 A kind of thermocouple structure of heat conduction measurement
CN109341882A (en) * 2018-10-19 2019-02-15 重庆材料研究院有限公司 The exchanging structure and preparation method thereof of armoured thermocouple cold end

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