CN101588107A - Power supply connection box of high-voltage motor - Google Patents
Power supply connection box of high-voltage motor Download PDFInfo
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- CN101588107A CN101588107A CNA2008100163817A CN200810016381A CN101588107A CN 101588107 A CN101588107 A CN 101588107A CN A2008100163817 A CNA2008100163817 A CN A2008100163817A CN 200810016381 A CN200810016381 A CN 200810016381A CN 101588107 A CN101588107 A CN 101588107A
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Abstract
The invention discloses a power supply connecting box of a high-voltage motor, which comprises involutedly connected connection box covers, a box base, a stator lead cable, a power supply cable and a fixedly connecting assembly, wherein the power supply cable is fixed with the box base through the fixedly connecting assembly and extends into the box base through a lead inlet on the wall of the box base. The power supply connection box is characterized in that the bottom of the connection box base is provided with an insulation lead board, the lead board is provided with a plurality of lead outlets, the stator lead cable extends into the box base through the lead outlets, the lead board is assembled with a fixed lead clamp, the top of a clamp body is provided with a clamp block, the fixed lead clamp body and the clamp block are provided with clamp grooves, the stator lead cable is clamped and fixed into the clamp grooves, and after the power supply cable and a connection lug which is connected to the end part of the stator lead cable are connected by adopting a connecting piece, the exposed electrified bodies are covered by an insulating piece. The least electric clearance and the creepage distance of the electrified bodies are ensured because positions among connection cables are fixed and the electrified bodies are insulated; and the invention has the advantages of reasonable design, simple structure and low product cost.
Description
Technical field
The present invention relates to a kind of housing supplement of motor, the power supply connection box of the high-tension motor of especially a kind of electric clearance that guarantees exposed electrified body and creepage distance.
Background technology
The electric pressure of high-voltage motor is very high, be generally 6000 volts and 10000 volts, so the insulation mode of motor power termination is very important.The connection cable of motor is divided into two parts, and a part is the stator outlet cable of motor, and another part provides the service cable of power supply for the motor operation.Standard GB 14711-2006 " middle-size and small-size electric rotating machine safety requirements " regulation; Rated voltage is 6000 volts a motor, and the minimum electric clearance of different live parts is 50mm in the terminal box, and minimum creep distance is 80mm; Rated voltage is 10000 volts a motor, and the minimum electric clearance of different live parts is 90mm in the terminal box, and minimum creep distance is 160mm.In order to satisfy the regulation of national standard, present domestic most high-voltage motor manufacturer adopts the mode of the binding post link cable of insulation in terminal box, guarantee the minimum electric clearance and the minimum creep distance of connection cable.As in the Chinese utility model patent specification of the CN2691149Y of on April 6th, 2005 bulletin, disclose a kind of like this " New-type electric machine high-voltage connection box " of structure, it is made up of lid, seat housing, binding post, connection cable, fixedly connected assembly.The binding post material is pottery or DMC, and motor stator outlet cable, power supply service cable end in the connection cable are welded Wiring nose respectively, and Wiring nose is sleeved on the wiring pile of binding post, fixes with the nut crimping.This two parts connection cable is when cooperating crimping with nut with wiring pile, and connection cable is easy to generate crooked, and the minimum electric clearance of two sections exposed electrified bodies and minimum creep distance are difficult to guarantee that electrified body produces discharge, causes the motor short circuit to burn.This mode of connection needs to dispose the binding post of insulation, the product cost height simultaneously.
Summary of the invention
Easily produce when overcoming the affixed connection cable of available technology adopting binding post crooked, can't guarantee minimum electric clearance and the minimum creep distance and the high deficiency of product cost of exposed electrified body, the invention provides a kind of power supply connection box of high-tension motor, this power supply connection box is not only reasonable in design, simple in structure, cost is low, and insulation is reliable, can guarantee the minimum electric clearance and the minimum creep distance of live electric cable.
The technical solution adopted for the present invention to solve the technical problems is: a kind of power supply connection box of high-tension motor, comprise connector cover, junction box seat, motor stator outlet cable, the power supply service cable, fixedly connected assembly, described connector cover connects by securing member at involutory position with junction box seat, described motor stator outlet cable, power supply service cable end is connected with Wiring nose respectively, wherein the power supply service cable carries out fixed-site between fixedly connected assembly and junction box seat, and the entrance hole on the cassette holder wall stretches in the cassette holder, characteristics are in described junction box seat bottom the outlet board of one insulation to be installed, respective motor stator outlet cable and have some wire holes on this outlet board according to certain spacing, described motor stator outlet cable correspondence passes this wire hole and stretches in the junction box seat, be positioned at assembling one fixing clamper on the outlet board of junction box seat, the clamp top of this fixing clamper is provided with a fixture block that is mated, on static line clamp and fixture block according to the corresponding respectively clip slot that has of a determining deviation, described motor stator outlet cable clamping in the fixedly clip slot that static line clamp and fixture block are formed, described power supply service cable, adopt connector to connect the back between the Wiring nose of motor stator outlet cable end and coat exposed electrified body with high-pressure insulator.
Be set with sealing ring on the described stator outlet cable that passes wire hole, the sealing circle is inlaid in the wire hole between stator outlet cable and the outlet board, and motor internal is played the water proof and dust proof effect.
Described clamping in the fixedly clip slot of static line clamp and fixture block combination motor stator outlet cable and static line clamp, fixture block between be equipped with insulating washer.
Adopt cold-press process to connect between the Wiring nose that described motor stator outlet cable, power supply service cable end connect and the cable end.
The described assembly of fixedlying connected that power supply service cable and junction box seat are carried out fixed-site is by a fixing end cover, one cable is upper shield fixedly, some cable jacket retention upper shields are formed, the fixing fixing upper shield of end cover and cable, divide involutory structure in adopting between the cable jacket retention upper shield, and at fixing end cover, cable is upper shield fixedly, the cable jacket retention cover covers respectively, and correspondence offers holddown groove, described cable is upper shield fixedly, fixedly the end, put the cable jacket retention upper shield to being assemblied in successively outward by the junction box seat lateral wall by fixture, cable fixedly upper shield is fixedly connected by connector fitting flange and junction box seat lateral wall through its periphery setting with the involutory back that connects of fixing end cover, described power supply service cable is set with retaining washer and protecting pipe outward, described retaining washer is installed in fixedly upper shield and fixedly in the holddown groove of end cover of cable, cable fixedly upper shield and the fixing end overlap involutory connect after this retaining washer with power supply service cable fixed-site, described protecting pipe is installed in the cable jacket retention upper shield and fixedly in the holddown groove of end cover, and cable jacket retention upper shield and the fixing end are overlapped after involutory the connection this protecting pipe fixed-site.
Described involutory connect cable that back and junction box seat lateral wall be fixedly connected fixedly upper shield and fixedly the end overlap, be provided with sealing gasket between its fitting flange end face and the junction box seat lateral wall.
Describedly be assemblied in the cable jacket retention upper shield that the fixing end puts by fixture, it puts at the fixing end and is product word shape and arranges.
The invention has the beneficial effects as follows that reasonable in design, simple in structure, parts are few, product cost is low, and live electric cable all insulate, and does not have exposed electrified body, guarantees that the motor live electric cable does not produce electric discharge phenomena, has guaranteed the safe operation of motor.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structure master's cut-away view of power supply connection box of the present invention.
Fig. 2 is the vertical view that removes connector cover among Fig. 1.
Fig. 3 is along the cutaway view of A-A line among Fig. 2.
1. connector covers among the figure, 2. junction box seat, 3. motor stator outlet cable, 4. attachment bolt, 5. fixture block, 6. insulating washer, 7. Wiring nose, 8. attachment bolt, 9. Wiring nose, 10. high pressure insulating tape, 11. power supply service cables, 12. holddown grooves, 13. cable is upper shield fixedly, 14. holddown grooves, 15. cable jacket retention upper shields, 1501. the cable jacket retention upper shield, 1502. cable jacket retention upper shields, 1503. cable jacket retention upper shields, 16. protecting pipe, 17. fixing end covers, 18. holddown grooves, 19. retaining washer, 20. fixedly connected assemblies, 21. fitting flanges, 22. sealing gasket, 23. entrance hole, 24. clip slots, 25. clip slots, 26. fixing clamper, 27. outlet board, 28. wire holes, 29. sealing rings.
Embodiment
In Fig. 1, a kind of power supply connection box of high-tension motor comprises connector cover 1, junction box seat 2, motor stator outlet cable 3, power supply service cable 11 and fixedly connected assembly 20.Connector cover 1 connects by joint bolt is involutory at involutory position with junction box seat 2.Power supply service cable 11 carries out fixed-site between fixedly connected assembly 20 and junction box seat 2, and the entrance hole on the cassette holder sidewall 23 stretches in the cassette holder.
As shown in Figure 1 and Figure 2, cooperate the outlet board 27 that an insulation is installed in the bottom of junction box seat 2 through its attachment bolt of four jiaos, nut, this outlet board 27 adopts epoxy resin bonded fiber 3240 materials to make.On outlet board 27, bore the wire hole 28 of φ 30 according to the quantity of motor stator outlet cable, high-voltage electric machine stator outlet cable is generally three, therefore the wire hole 28 on outlet board 27 is three, pitch-row is 110mm, motor stator outlet cable 3 passes from these three wire holes 28, stretches in the junction box seat 2.
On motor stator outlet cable 3, be set with the sealing ring 29 that elastomeric material is made; sealing circle 29 is inlaid in the wire hole 28 between stator outlet cable 3 and the outlet board 27; motor internal is played the waterproof and dustproof effect, also protect motor stator outlet cable 3 simultaneously.
As shown in Figure 1, on the outlet board 27 that is positioned at junction box seat 2, assemble a fixing clamper 26, a fixture block that is mated 5 is set at the clamp top of fixing clamper 26 by set bolt.In Fig. 1, Fig. 2, fixture block 5 is realized involutory connect with it with fixing clamper 26 by attachment bolt 4.
Among Fig. 1, corresponding respectively three clip slots 24,25 that have on the clamp of fixing clamper 26 and fixture block 5, slot pitch is 110mm.The cross section of clip slot 24,25 is semicircular in shape (not providing among the figure) respectively, and motor stator outlet cable 3 clampings have been realized the fixed-site of 3 on motor stator outlet cable in the fixedly clip slot that static line clamp 26 and fixture block 5 are formed.
In order to guarantee the insulation between electrified body better, in Fig. 1, Fig. 2, be equipped with insulating washer 6 between motor stator outlet cable 3 and fixing clamper 23, the fixture block 5.
Fixedly connected assembly 20 is as Fig. 1, Fig. 2, shown in Figure 3, its by one fixedly end cover 17, one cable fixedly upper shield 13, cable jacket retention upper shield 15 form, cable jacket retention upper shield 15 is three, promptly the cable jacket retention upper shield 1501,1502,1503.
Among Fig. 3, fixedly end cover 17 and cable divide involutory structure in fixedly adopting between upper shield 13, the cable jacket retention upper shield 1501,1502,1503.
As shown in Figure 1, fixing end cover 17, cable fixedly on upper shield 13, the cable jacket retention upper shield 15 respectively correspondence offer holddown groove 18, holddown groove 12, holddown groove 14.The cross section of holddown groove 12, holddown groove 14, holddown groove 18 is semicircular in shape (not providing among the figure) also.
In Fig. 1, Fig. 2, Fig. 3, cable fixedly upper shield 13, cable jacket retention upper shield 1501,1502,1503 fixedly the end, overlapped on 17 to being assemblied in successively outward by junction box seat 2 lateral walls by the countersunk head attachment bolt.In order to reduce the volume of product, make structure compact more, as shown in Figure 2, cable jacket retention upper shield 1501,1503,1502 is on fixing end cover 17 and be the arrangement of product word shape.
Among Fig. 1, Fig. 2, cable fixedly upper shield 13 overlaps the 17 involutory backs that connect with the fixing end and cooperates the fitting flange 21 and junction box seat 2 lateral walls that are provided with through its periphery to be fixedly connected by attachment bolt, nut.For waterproof and dustproof, among Fig. 2, between the end face of fitting flange 21 and junction box seat 2 lateral walls, be provided with sealing gasket 22.
In Fig. 1, power supply service cable 11 outer retaining washer 19 and the protecting pipes 16 of being set with, retaining washer 19 is installed in cable fixedly in the holddown groove 12,18 of upper shield 13 and fixing end cover 17, cable fixedly upper shield 13 and the fixing end overlap 17 involutory connect after this retaining washer 19 with power supply service cable 11 fixed-site.As shown in Figure 1 and Figure 2, protecting pipe 16 is installed in the holddown groove 14,18 of cable jacket retention upper shield 15 and fixing end cover 17, overlapped for 17 involutory connections at the cable jacket retention upper shield 15 and the fixing end after, with these protecting pipe 16 fixed-site.
In Fig. 1, Fig. 2, adopt cold-press process to be connected with Wiring nose 7,9 respectively in the end of motor stator outlet cable 3, power supply service cable 11, adopt attachment bolt 8 to connect the back between Wiring nose 7 and the Wiring nose 9 and coat exposed electrified body with high pressure insulating tape 10.
Fixed-site between connection cable of the present invention, electrified body all insulate, and does not have and exposes, and guarantees the minimum electric clearance and the minimum creep distance of electrified body effectively, has avoided producing between the motor live electric cable phenomenon of discharge, has guaranteed the safe operation of motor.
Claims (7)
1, a kind of power supply connection box of high-tension motor, comprise connector cover, junction box seat, motor stator outlet cable, the power supply service cable, fixedly connected assembly, described connector cover connects by securing member at involutory position with junction box seat, described motor stator outlet cable, power supply service cable end is connected with Wiring nose respectively, wherein the power supply service cable carries out fixed-site between fixedly connected assembly and junction box seat, and the entrance hole on the cassette holder wall stretches in the cassette holder, it is characterized in that: the outlet board of one insulation is installed in described junction box seat bottom, respective motor stator outlet cable and have some wire holes on this outlet board according to certain spacing, described motor stator outlet cable correspondence passes this wire hole and stretches in the junction box seat, be positioned at assembling one fixing clamper on the outlet board of junction box seat, the clamp top of this fixing clamper is provided with a fixture block that is mated, on static line clamp and fixture block according to the corresponding respectively clip slot that has of a determining deviation, described motor stator outlet cable clamping in the fixedly clip slot that static line clamp and fixture block are formed, described power supply service cable, adopt connector to connect the back between the Wiring nose of motor stator outlet cable end and coat exposed electrified body with high-pressure insulator.
2, the power supply connection box of a kind of high-tension motor according to claim 1, it is characterized in that: the described assembly of fixedlying connected that power supply service cable and junction box seat are carried out fixed-site is by a fixing end cover, one cable is upper shield fixedly, some cable jacket retention upper shields are formed, the fixing fixing upper shield of end cover and cable, divide involutory structure in adopting between the cable jacket retention upper shield, and at fixing end cover, cable is upper shield fixedly, the cable jacket retention cover covers respectively, and correspondence offers holddown groove, described cable is upper shield fixedly, fixedly the end, put the cable jacket retention upper shield to being assemblied in successively outward by the junction box seat lateral wall by fixture, cable fixedly upper shield is fixedly connected by connector fitting flange and junction box seat lateral wall through its periphery setting with the involutory back that connects of fixing end cover, described power supply service cable is set with retaining washer and protecting pipe outward, described retaining washer is installed in fixedly upper shield and fixedly in the holddown groove of end cover of cable, cable fixedly upper shield and the fixing end overlap involutory connect after this retaining washer with power supply service cable fixed-site, described protecting pipe is installed in the cable jacket retention upper shield and fixedly in the holddown groove of end cover, and cable jacket retention upper shield and the fixing end are overlapped after involutory the connection this protecting pipe fixed-site.
3, the power supply connection box of a kind of high-tension motor according to claim 2, it is characterized in that: described involutory connect cable that back and junction box seat lateral wall be fixedly connected fixedly upper shield and fixedly the end overlap, be provided with sealing gasket between its fitting flange end face and the junction box seat lateral wall.
4, according to the power supply connection box of claim 2 or 3 described a kind of high-tension motors, it is characterized in that: describedly be assemblied in the cable jacket retention upper shield that the fixing end puts by fixture, it puts at the fixing end and is product word shape and arranges.
5, the power supply connection box of a kind of high-tension motor according to claim 1 and 2, it is characterized in that: be set with sealing ring on the described stator outlet cable that passes wire hole, the sealing circle is inlaid in the wire hole between stator outlet cable and the outlet board.
6, the power supply connection box of a kind of high-tension motor according to claim 1 and 2 is characterized in that: described clamping in the fixedly clip slot of static line clamp and fixture block combination motor stator outlet cable and static line clamp, fixture block between be equipped with insulating washer.
7, the power supply connection box of a kind of high-tension motor according to claim 1 and 2 is characterized in that: adopt cold-press process to connect between the Wiring nose that described motor stator outlet cable, power supply service cable end connect and the cable end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100163817A CN101588107A (en) | 2008-05-24 | 2008-05-24 | Power supply connection box of high-voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100163817A CN101588107A (en) | 2008-05-24 | 2008-05-24 | Power supply connection box of high-voltage motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101588107A true CN101588107A (en) | 2009-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100163817A Pending CN101588107A (en) | 2008-05-24 | 2008-05-24 | Power supply connection box of high-voltage motor |
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| CN (1) | CN101588107A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516116A (en) * | 2013-10-23 | 2014-01-15 | 中达电机股份有限公司 | Temperature measuring junction box device |
| CN105305706A (en) * | 2015-11-06 | 2016-02-03 | 湖南中通电气股份有限公司 | Wiring improvement method and wiring apparatus for outgoing line of alternating current frequency conversion traction motor for track traffic vehicles |
| CN107888015A (en) * | 2016-09-30 | 2018-04-06 | 中车株洲电力机车研究所有限公司 | A kind of motor wire outlet structure and method |
| CN109510374A (en) * | 2018-12-11 | 2019-03-22 | 中车株洲电机有限公司 | A kind of cable outgoing apparatus and the motor with the cable outgoing apparatus |
| CN112615466A (en) * | 2020-12-01 | 2021-04-06 | 合肥巨一动力系统有限公司 | Three-phase sealing structure of oil-cooled motor |
-
2008
- 2008-05-24 CN CNA2008100163817A patent/CN101588107A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516116A (en) * | 2013-10-23 | 2014-01-15 | 中达电机股份有限公司 | Temperature measuring junction box device |
| CN105305706A (en) * | 2015-11-06 | 2016-02-03 | 湖南中通电气股份有限公司 | Wiring improvement method and wiring apparatus for outgoing line of alternating current frequency conversion traction motor for track traffic vehicles |
| CN107888015A (en) * | 2016-09-30 | 2018-04-06 | 中车株洲电力机车研究所有限公司 | A kind of motor wire outlet structure and method |
| CN107888015B (en) * | 2016-09-30 | 2020-02-04 | 中车株洲电力机车研究所有限公司 | Motor wire outlet structure and method |
| CN109510374A (en) * | 2018-12-11 | 2019-03-22 | 中车株洲电机有限公司 | A kind of cable outgoing apparatus and the motor with the cable outgoing apparatus |
| CN112615466A (en) * | 2020-12-01 | 2021-04-06 | 合肥巨一动力系统有限公司 | Three-phase sealing structure of oil-cooled motor |
| WO2022116867A1 (en) * | 2020-12-01 | 2022-06-09 | 合肥巨一动力系统有限公司 | Three-phase sealing structure of oil-cooled motor |
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Open date: 20091125 |