CN103855849B - A kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels - Google Patents
A kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels Download PDFInfo
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- CN103855849B CN103855849B CN201410115759.4A CN201410115759A CN103855849B CN 103855849 B CN103855849 B CN 103855849B CN 201410115759 A CN201410115759 A CN 201410115759A CN 103855849 B CN103855849 B CN 103855849B
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- outlet line
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Abstract
The present invention discloses a kind of the traction electric machine terminal box and the manufacture method thereof that are applicable to voltage levels, terminal box cover plate, three-phase outlet line, three-phase electricity cable and the joint sealant comprising box body and cover on box body, described three-phase outlet line is all connected in box body and in box body from box external entering into three-phase electricity cable, and it is inner that described joint sealant is potted in box body. Described box body is provided with the three-phase outlet line wire hole passed for three-phase outlet line, pass for three-phase electricity cable three-phase electricity cable wire hole and screw part for what screw three-phase electricity cable. The manufacture method of this terminal box, comprises the steps: casting box body; Connect three-phase outlet line and three-phase electricity cable; Insulation wrapping; Sealant pouring and sealing; The terminal box of the present invention, is convenient to sealing, batch production, and cost is low, and terminal box sealing is reliable and insulation is reliable, can meet traction electric machine and operate in voltage levels and the less requirement of bulk.
Description
Technical field
The present invention relates to motor device technical field, especially a kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels.
Background technology
In traction electric machine designs, due to operation condition requirement, motor often operates in higher voltage range, simultaneously owing to traction electric machine is generally by the bottom of bogie suspension at vehicle, and limited space at the bottom of car, therefore traction electric machine size is all less, namely the bulk restriction of traction electric machine is more, and therefore traction electric machine terminal box is also usually had living space the restriction of size.
When traction electric machine voltage range is higher, the creepage distance at exposed position that its three-phase outlet line carries out with three-phase electricity cable being connected is also bigger, if the restriction of terminal box bulk is more, its terminal box internal space often can not meet the requirement of creepage distance, therefore, need to rationally carry out junction box structure design so that it is the requirement of voltage levels can be met, the reliable requirement of insulation can be met again.
Through retrieval, application number be 201210102257.9 application for a patent for invention disclose a kind of photovoltaic module adopting joint sealant formula terminal box, comprise lamination part of solar cell, seal gum and terminal box, described terminal box is bonded in the back side of lamination part of solar cell by seal gum, and in terminal box, embedding has joint sealant. Application number be 200810128684.8 invention relate to electrical terminal block and manufacture method thereof, concrete provide a kind of cheap electrical terminal block and manufacture method thereof reducing manufacturing processed and the number of components. Electrical terminal block has the bus-bar being arranged on another parts being different from plate and the circuit element being arranged on plate. It is connected to the lead-in wire of the power supply on power supply be arranged in a part of bus-bar. And, the semiconductor relay being connected electrically between power supply lead-in wire and the junctor lead-in wire being connected with the wire from load is arranged on bus-bar. The plate support section being used for supporting described plate is arranged on housing with the bus-bar support section being used for supporting bus-bar. Bus-bar support section is located on another region being different from plate support section. Application number be 201110074383.3 invention have about a kind of terminal box and manufacture method thereof. Described terminal box comprises the terminal component accepting power supply; It is arranged on the diode of this terminal component; With the scatterer being in close contact by die casting and this diode. The size that described terminal box is possible to prevent fault and inefficacy and realizes terminal box reduces. Application number be 201220239474.8 practical novel relate to a kind of urban rail transit vehicles connection box for motor, comprise housing and end cap, described housing formula removable with end cap is fixedly connected with, described housing is provided with cable and wears hand-hole and be used for wearing the through hole of motor three-phase line bank, and its: the in-built junction block that is connected to of described housing, and junction block is provided with 3 terminal studs arranged apart, each terminal stud is installed with the conducting strip for being electrically connected with motor three-phase line bank respectively, and the bottom of each terminal stud is all fixedly connected with junction block insulation by non-rotatable nut; Also being provided with the insulcrete being used for fixing motor three-phase line bank in described housing, described insulcrete is arranged in parallel with junction block by being fixedly connected with housing. Application number be 201010505274.8 invention provide a kind of Integral injection molded junction box and manufacture method thereof, described Integral injection molded junction box comprises: lid, box body, diode, conducting strip and cable, welding diode is on conducting strip, and the mode with conducting strip plastic cement injection moulding is bundled together; Cable is connected to the connection terminal place of conducting strip, and with the conducting strip being bundled together and diode again with the mode of plastic cement injection moulding and box body by integral forming, and be formed in box body. It is inner that diode and conducting strip are wrapped in box body by the Integral injection molded junction box of the present invention, and diode and conducting strip and plastics are in close contact, and can dispel the heat by plastics, improve heat dispersion. In addition, cable is also wrapped in box body, do not need connecting cable separately when system is installed, it is to increase working efficiency, saves material usage. Above prior art, all can not solve in electric moter voltage higher grade, when simultaneously bulk is less, connection box for motor insulate insecure problem.
Summary of the invention
Technical problem to be solved by this invention is, it is provided that a kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels, and it can solve when electric moter voltage is less up to 4500V, simultaneously bulk, and connection box for motor insulate insecure problem.
The technical scheme of the present invention is: described in be applicable to the traction electric machine terminal box of voltage levels, the terminal box cover plate comprising box body and cover on box body, it is characterized in that, also comprise three-phase outlet line, three-phase electricity cable and joint sealant, described three-phase outlet line is all connected in box body and in box body from box external entering into three-phase electricity cable, and it is inner that described joint sealant is enclosed in box body.
Described box body is provided with the three-phase outlet line wire hole passed for three-phase outlet line, pass for three-phase electricity cable three-phase electricity cable wire hole and screw part for what screw three-phase electricity cable; Described three-phase outlet line wire hole matches with the trim ring of motor.
Three-phase outlet line is weld with the mode of connection of three-phase electricity cable, and its junction adopts insulation system, processes with insulation.
The described traction electric machine terminal box being applicable to voltage levels adopts sealed structure, and described box body one-step casting is shaping.
Described box body also comprises the footing being positioned at bottom box body, and described footing is circular shape and matches with electric machine iron core, support, trim ring and end cap.
The present invention also provides a kind of traction electric machine being applicable to voltage levels, described in be applicable to voltage levels traction electric machine be provided with the traction electric machine terminal box being applicable to voltage levels according to any one of claim 1 to 5.
The manufacture method being applicable to the traction electric machine terminal box of voltage levels, comprises the steps:
A, casting box body: by forging type, terminal box once shaped, described box body comprises the footing bottom box body, the three-phase outlet line wire hole of box body side surface and three-phase electricity cable wire hole; During casting, make that the footing bottom box body matches with electric machine iron core and support circular arc face, the three-phase outlet line wire hole of box body side surface matches with the trim ring of motor;
B, connection three-phase outlet line and three-phase electricity cable: three-phase outlet line and three-phase electricity cable enter in box body by three-phase outlet line wire hole and three-phase electricity cable wire hole respectively, adopt welding process to be fixedly connected with three-phase outlet line and three-phase electricity cable in box body inside;
First gap and the corner angle of three-phase outlet line and the junction of three-phase electricity cable are filled smooth with silicon rubber clay, are made insulation wrapping not produce clearance by C, insulation wrapping: when the junction of three-phase outlet line and three-phase electricity cable carries out insulation wrapping; Secondly even brushing one layer of silicon paint on the joint of three-phase outlet line and three-phase electricity cable, at two ends wrapping place brush silica gel; Again wrap up with the sticky band of silicon rubber glass; Finally wrap up with TGP adhesive tape;
D, sealant pouring and sealing:
A) space of three-phase outlet line wire hole is first tight with poly-virtue felt plug, then is undertaken by stator dipping sealing, solidifying;
B) box body inside adopts organic silicon potting adhesive to carry out the reinforcement that seals and insulate, first silane coupling agent is adopted to brush inboard wall of cartridge surface, brushing carries out embedding in 60��90 minutes after completing, joint sealant A, B component mix according to mass ratio 2:1, and carry out Fruit storage in mixing process, control embedding speed, eliminate bubble, glue rifle is stretched into box body inner bottom part, adopts method of overflowing to fill with glue, make the gap leaving 5mm between the colloid of embedding and terminal box cover plate; After filling glue completes, the baker that box body is placed in 80 DEG C cures 2 hours;
E, manufacture terminal box cover plate, rubber pad and screw part and be assembled on box body, completing the manufacture being applicable to the traction electric machine terminal box of voltage levels.
In the manufacture method of the above-mentioned traction electric machine terminal box being applicable to voltage levels, described traction electric machine terminal box and electric machine stand are angle of rotation time fixing, this angle of rotation can ensure that three-phase electricity cable outlet conveniently and between axle suspension bearing box has certain space, can expand again terminal box size to greatest extent, improve electric clearance.
Adopt above-mentioned insulation wrapping treatment process can fill smooth by the gap of junction and corner angle, make not produce between insulation layer clearance, can be combined closely with joint sealant again simultaneously, make terminal box inside one-tenth one overall, ensure serviceability; Adopt above-mentioned encapsulating method, can ensure that terminal box embedding is complete, bubble can not be produced again, make joint sealant insulation reliable, convenient operation simultaneously.
The present invention relates to a kind of traction electric machine terminal box being applicable to voltage levels, especially the terminal box of structure is cast, it is convenient to sealing, batch production, it is possible to solve the traction electric machine terminal box difficult design of voltage levels, it is easy to occur running insecure technical problem. Dependable performance of the present invention, cost is low, and terminal box sealing is reliable and insulation is reliable, can meet traction electric machine and operate in voltage levels and the less requirement of bulk. Owing to voltage range is higher, terminal box inside uses joint sealant to carry out overall sight embedding, and this joint sealant can make up bulk and retrain the electric insulation brought apart from inadequate defect, can meet again the requirement that long-time running keeps stable insulation in hot conditions; For the encapsulating method of this joint sealant, it is desired to can evenly be filled by box body, and ensure that in embedding process, bubble-free produces, and ensures insulating reliability.
It is subject to the restriction of outlet method, terminal box need to coordinate with the multiple parts of electric machine iron core, support, trim ring and end cap, and terminal box need to be designed to irregular shape, therefore adopts casting junction box structure, the irregular place once shaped of this terminal box, avoids the problem being not easy sealing; For avoiding that motor operation course loosens between three-phase outlet line and three-phase electricity cable, prevent three-phase outlet line and three-phase electricity cable loose contact, the even connecting portion local problem such as scaling loss in motor operation course, the inner three-phase outlet line of terminal box and three-phase electricity cable employing welding connecting mode; After three-phase outlet line has welded with three-phase electricity cable, carry out insulation processing, the inner full joint sealant of last embedding of terminal box, these joint sealant insulating property are good, the puncturing of air between three-phase outlet line and three-phase electricity cable when motor can be avoided to run, simultaneously this joint sealant resistance toheat stablize, it is possible to meet motor long time hot operation requirement.
Accompanying drawing explanation
The structural representation of the traction electric machine terminal box that Fig. 1 provides for the embodiment of the present invention.
In figure: 1. box body, 2. three-phase outlet line, 3. terminal box cover plate, 4. joint sealant, 5. three-phase electricity cable, 6. screw part.
Embodiment
As shown in Figure 1, the described traction electric machine terminal box being applicable to voltage levels, terminal box cover plate 3, three-phase outlet line 2, three-phase electricity cable 5 and the joint sealant 4 comprising box body 1 and cover on box body, described three-phase outlet line is all connected in box body and in box body from box external entering into three-phase electricity cable, and it is inner that described joint sealant is potted in box body. Box body be provided be positioned at footing bottom box body, the three-phase outlet line wire hole that passes for three-phase outlet line, the three-phase electricity cable wire hole passed for three-phase electricity cable and screw part 6 for what screw three-phase electricity cable.
The inner on line of connection box for motor adopts welded construction, carries out insulation processing after having welded, then carries out the overall embedding of terminal box, seals the reliable and reliable problem of insulation to solve terminal box.
The present invention is reliable, safety. by casting integratedization mode, traction motor is formed described box body, footing bottom this terminal box matches with electric machine iron core and support, footing is circular shape, the three-phase outlet line wire hole of side matches with trim ring and the end cap of motor, terminal box and motor are an angle of rotation time fixing, this angle of rotation can ensure that three-phase electricity cable outlet is convenient, and there is certain space between axle suspension bearing box, terminal box size can be expanded again to greatest extent, simultaneously owing to being subject to bulk restriction, terminal box top is scabbled, to meet the bulk requirement of traction electric machine on bogie.
After terminal box and electric machine stand have been fixed, three-phase outlet line enters terminal box by three-phase outlet line wire hole, first three-phase outlet line is welded with three-phase electricity cable, the two is firmly fixed together, again the two surface is carried out insulation processing, this insulating treatment method is: first fill smooth with silicon rubber clay by the gap of junction and corner angle, makes insulation wrapping not produce clearance; Secondly on three-phase outlet line and three-phase cable adapter metal, one layer of silicon paint is evenly brushed, at two ends wrapping place brush silica gel; Again wrap up with the sticky band of silicon rubber glass; Finally wrap up with TGP adhesive tape.
After terminal box built-in electrical insulation has processed, terminal box need to be sealed: the space at three-phase outlet line wire hole place adopts poly-virtue felt plug tight, is sealed by stator dipping; Terminal box inside adopts organic silicon potting adhesive to seal, first silane coupling agent is adopted to brush terminal box inner wall surface, after brushing completes, 60��90 minutes periods carried out embedding, joint sealant A, B component mix according to mass ratio 2:1, and in mixing process, carry out Fruit storage, control embedding speed, eliminate bubble, glue rifle stretches into bottom terminal box, employing method of overflowing fills with glue, fills with after glue completes, and the baker that terminal box is placed in 80 DEG C cures 2 hours, embedding colloid and terminal box cover plate leave suitable gap and are about 5mm, as manage-style head expansion space.
After the invention process, in motor operation course, can not make it that problems such as defective insulation, electric discharge puncture occur, it also avoid terminal box make moist, stained, this joint sealant radiating effect is better than air simultaneously, be beneficial to the work of terminal box, it is to increase terminal box serviceability.
The present invention is that the restriction of a kind of bulk is strict, voltage range is higher, needs the terminal box of safe wiring, is applied to field of motor manufacturing. This terminal box reduces greatly than the connection box for motor size of equal voltage range, simultaneously inside has been done after embedding processes, it is to increase insulation strength, higher than the insulating reliability of general terminal box, can ensure traction electric machine safe and reliable operation. When voltage range is higher and terminal box bulk has in limited time, this joint sealant can make up electrically apart from inadequate defect, makes terminal box can meet electric insulation reliability, simultaneously due to terminal box heating when motor runs, this operation long-term at such a temperature, this joint sealant stable insulation.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., be all included within protection scope of the present invention.
Claims (2)
1. the manufacture method being applicable to the traction electric machine terminal box of voltage levels, comprises the steps:
A, casting box body: by forging type, terminal box once shaped, described box body comprises the footing bottom box body, the three-phase outlet line wire hole of box body side surface and three-phase electricity cable wire hole; During casting, make that the footing bottom box body matches with electric machine iron core and support circular arc face, the three-phase outlet line wire hole of box body side surface matches with the trim ring of motor;
B, connection three-phase outlet line and three-phase electricity cable: three-phase outlet line and three-phase electricity cable enter in box body by three-phase outlet line wire hole and three-phase electricity cable wire hole respectively, adopt welding process to be fixedly connected with three-phase outlet line and three-phase electricity cable in box body inside;
First gap and the corner angle of three-phase outlet line and the junction of three-phase electricity cable are filled smooth with silicon rubber clay, are made insulation wrapping not produce clearance by C, insulation wrapping: when the junction of three-phase outlet line and three-phase electricity cable carries out insulation wrapping; Secondly even brushing one layer of silicon paint on the joint of three-phase outlet line and three-phase electricity cable, at two ends wrapping place brush silica gel; Again wrap up with the sticky band of silicon rubber glass; Finally wrap up with TGP adhesive tape;
D, sealant pouring and sealing:
A) space of three-phase outlet line wire hole is first tight with poly-virtue felt plug, then is undertaken by stator dipping sealing, solidifying;
B) box body inside adopts organic silicon potting adhesive to carry out the reinforcement that seals and insulate, first silane coupling agent is adopted to brush inboard wall of cartridge surface, brushing carries out embedding in 60��90 minutes after completing, joint sealant A, B component mix according to mass ratio 2:1, and carry out Fruit storage in mixing process, control embedding speed, eliminate bubble, glue rifle is stretched into box body inner bottom part, adopts method of overflowing to fill with glue, make the gap leaving 5mm between the colloid of embedding and terminal box cover plate; After filling glue completes, the baker that box body is placed in 80 DEG C cures 2 hours;
E, manufacture terminal box cover plate, rubber pad and screw part and be assembled on box body, completing the manufacture being applicable to the traction electric machine terminal box of voltage levels.
2. the manufacture method of the traction electric machine terminal box being applicable to voltage levels according to claim 1, it is characterized in that, described traction electric machine terminal box and electric machine stand are angle of rotation time fixing, this angle of rotation can ensure that three-phase electricity cable outlet conveniently and between axle suspension bearing box has certain space, can expand again terminal box size to greatest extent, improve electric clearance.
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| CN201410115759.4A CN103855849B (en) | 2014-03-26 | 2014-03-26 | A kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels |
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| CN201410115759.4A CN103855849B (en) | 2014-03-26 | 2014-03-26 | A kind of traction electric machine terminal box and manufacture method thereof being applicable to voltage levels |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104467329B (en) * | 2014-12-23 | 2017-03-08 | 南车株洲电机有限公司 | A kind of multithread narrow gauge asynchronous traction motor |
| CN105226887A (en) * | 2015-10-30 | 2016-01-06 | 宁夏西北骏马电机制造股份有限公司 | Low seam mining machinery motor waterproof method |
| CN107769439A (en) * | 2016-08-17 | 2018-03-06 | 天津斯巴克斯机电有限公司 | Oil-immersed type electric roller motor lead-out wire intermediate connection box body |
| CN109450185A (en) * | 2018-12-29 | 2019-03-08 | 苏州贝得科技有限公司 | A kind of the lead-out wire insulated enclosure technique and its sealing structure of magnetic-suspension linear motor |
| CN109951027A (en) * | 2019-04-06 | 2019-06-28 | 卧龙电气驱动集团股份有限公司 | A kind of novel built-in driving direct-flow vibrating |
| CN114649709B (en) * | 2020-12-17 | 2023-06-06 | 华为技术有限公司 | Electronic equipment and vehicle |
| CN112713696A (en) * | 2020-12-29 | 2021-04-27 | 中车永济电机有限公司 | Space-saving and convenient-to-disassemble motor junction box |
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| CN201937383U (en) * | 2011-03-29 | 2011-08-17 | 南车株洲电机有限公司 | Integral sealed terminal box |
| CN202634157U (en) * | 2012-05-25 | 2012-12-26 | 江苏常牵庞巴迪牵引系统有限公司 | Motor junction box of urban railway traffic vehicle |
| CN203761190U (en) * | 2014-03-26 | 2014-08-06 | 南车株洲电机有限公司 | Conjunction box suitable for high-voltage-class traction motor and traction motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5358609B2 (en) * | 2011-03-31 | 2013-12-04 | 株式会社小松製作所 | Generator motor and work machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201937383U (en) * | 2011-03-29 | 2011-08-17 | 南车株洲电机有限公司 | Integral sealed terminal box |
| CN202634157U (en) * | 2012-05-25 | 2012-12-26 | 江苏常牵庞巴迪牵引系统有限公司 | Motor junction box of urban railway traffic vehicle |
| CN203761190U (en) * | 2014-03-26 | 2014-08-06 | 南车株洲电机有限公司 | Conjunction box suitable for high-voltage-class traction motor and traction motor |
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