CN112820464A - Waterproof end of motor cable - Google Patents

Waterproof end of motor cable Download PDF

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Publication number
CN112820464A
CN112820464A CN202110027089.0A CN202110027089A CN112820464A CN 112820464 A CN112820464 A CN 112820464A CN 202110027089 A CN202110027089 A CN 202110027089A CN 112820464 A CN112820464 A CN 112820464A
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CN
China
Prior art keywords
sealing
layer
periphery
insulating layer
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110027089.0A
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Chinese (zh)
Inventor
夏雨宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou Tengbiao Electronics Co ltd
Original Assignee
Taizhou Tengbiao Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taizhou Tengbiao Electronics Co ltd filed Critical Taizhou Tengbiao Electronics Co ltd
Priority to CN202110027089.0A priority Critical patent/CN112820464A/en
Publication of CN112820464A publication Critical patent/CN112820464A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Motor Or Generator Frames (AREA)

Abstract

The application relates to a waterproof end of motor cable, it includes cable, sealing member and sealed. The cable comprises one or more strands of conducting wires, an insulating layer coated on the outer side of each strand of conducting wire and a protective layer coated on the outer side of the one or more strands of insulating layers, wherein one end of the insulating layer extends out of the protective layer; one or more through holes are formed in the sealing element, the number of the through holes is consistent with the number of the strands of the insulating layer, each strand of the insulating layer penetrates into one through hole, and the insulating layer extends out from one end of the sealing element, which is far away from the protective layer; one end of the sealing sleeve is sleeved on the periphery of the protective layer, and the other end of the sealing sleeve is sleeved on the periphery of the sealing piece. If the protective layer breaks, a small amount of water permeates into the cable and downwards leaks to the sealing element along the gap between the insulating layers, at the moment, the sealing element and the insulating layer, the sealing element and the sealing sleeve are sealed, the sealing sleeve is sealed, the water is prevented from leaking, and the water is prevented from permeating into the junction box.

Description

Waterproof end of motor cable
Technical Field
The application relates to the field of motor cable ends, in particular to a waterproof end of a motor cable.
Background
The submersible pump is an important device for pumping water from deep wells, and when the submersible pump is used, the whole unit is submerged to work.
The submersible electric pump unit mainly comprises a water pump, a water delivery pipe, a submersible motor and a cable. When the submersible electric water pump works, the water pump and the submersible motor are completely immersed in water; the lower end of the water pipe is immersed in water and communicated with a water pump, and the upper end of the water pipe extends out of the water surface; the lower extreme of cable is immersed in the aquatic to connect the dive motor, and the upper end of cable stretches out the surface of water and connects power supply unit, and then for the dive motor power supply.
Usually, be equipped with the wiring hole that the power cable passed on submersible motor's the terminal box, and the periphery interference of cable has cup jointed the rubber circle, and the rubber circle interference inlays and establishes to the wiring downthehole, and then realizes between cable periphery and the rubber circle and the wiring hole between interior week sealed, avoids water infiltration submersible motor in.
Meanwhile, the cable comprises a plurality of strands of wires, an insulating layer coated on the outer side of each strand of wire and a protective layer coated on the outer side of each strand of insulating layer, and the rubber ring is sleeved on the periphery of the protective layer in an interference manner.
In addition, in order to facilitate wiring in the wiring box, one end of the multiple insulating layers extends out of the protective layer, so that the multiple insulating layers are separated from each other; one end of the wire extends out of the insulating layer to complete the wiring.
In view of the above-mentioned related art, the inventor believes that if the protective layer is broken, water enters into the protective layer and then permeates into the junction box of the submersible motor from the gap between the multiple insulating layers, resulting in the submersible motor being damaged by the water.
Disclosure of Invention
In order to improve the leakproofness of motor cable end, avoid the terminal box to intake, this application provides a waterproof end of motor cable.
A waterproof end of a motor cable comprises a cable, a sealing element and a sealing sleeve, wherein the cable comprises one or more strands of conducting wires, an insulating layer coated on the outer side of each strand of conducting wire, and a protective layer coated on the outer side of one or more strands of insulating layers, one end of the insulating layer extends out of the protective layer;
one or more through holes are formed in the sealing element, the number of the through holes is consistent with the number of the strands of the insulating layer, each strand of the insulating layer penetrates into one through hole, and the insulating layer extends out from one end of the sealing element, which is far away from the protective layer;
one end of the sealing sleeve is sleeved on the periphery of the protective layer, and the other end of the sealing sleeve is sleeved on the periphery of the sealing element;
the outer periphery of the insulating layer and the inner periphery of the through hole are sealed, the inner periphery of the sealing sleeve and the outer periphery of the protective layer are sealed, and the inner periphery of the sealing sleeve and the outer periphery of the sealing element are sealed.
Through adopting above-mentioned technical scheme, if the protective layer breaks, then in a small amount of water infiltration cable to along the downward seepage in clearance between the insulating layer to sealing member department, at this moment, sealing between sealing member and the insulating layer, sealing between the inner periphery of seal cover and the periphery of protective layer and sealing between the inner periphery of seal cover and the periphery of sealing member, three sealing block water's seepage, and then avoid water infiltration in the terminal box.
Optionally, still include the lag, the periphery in the seal cover is cup jointed to the lag, it is sealed between lag and the seal cover, just the lag is used for inlaying and establishes to the wiring hole of terminal box downthehole.
Through adopting above-mentioned technical scheme, the lag is used for providing the protection for the seal cover, reduces the impaired probability of seal cover, and simultaneously, the protective sheath provides sealed between seal cover and wiring hole, blocks the seepage of water.
Optionally, an epoxy resin layer is arranged between the protective sleeve and the sealing sleeve.
Through adopting above-mentioned technical scheme, the inseparable cladding seal cover of epoxy layer, simultaneously, the epoxy layer provides the support for the lag for the wiring hole of the inseparable cooperation terminal box of periphery of lag, and then provides sealedly between seal cover and wiring hole.
Optionally, the axial length of the protective sleeve is greater than that of the sealing sleeve, and both axial ends of the sealing sleeve are located in the protective sleeve;
the epoxy resin layer is coated on the peripheries of the protective layer, the sealing sleeve and the insulating layer.
By adopting the technical scheme, the sealing sleeve and the sealing element are coated by using the epoxy resin, and the epoxy resin is coated on the periphery of the insulating layer and the protective layer, so that the sealing performance is further improved.
Optionally, the wire-wrapping structure further comprises an extension wire and a sealing layer; one end of the extension line is coupled with a wire; the sealing layer covers the coupling part of the extension line and the lead, one end of the sealing layer covers the periphery of the insulating layer, and the other end of the sealing layer covers the periphery of the extension line;
the inner periphery of the sealing layer is sealed with the outer periphery of the insulating layer, and the inner periphery of the sealing layer is sealed with the outer periphery of the extension line.
Through adopting above-mentioned technical scheme, the protective layer is damaged the back for the insulating layer exposes, and then probably leads to the insulating layer damaged, and at this moment, in the water infiltration insulating layer, and along the downward seepage in gap between wire and the insulating layer, when the water seepage was when the coupling department of extension line and wire, sealed between the periphery of the internal periphery of sealing layer and extension line, in order to block the continuation seepage of water, and then avoid the water infiltration in the terminal box.
Optionally, the extension line comprises a connecting column and a connecting line;
one end of the connecting column is provided with a jack which is sleeved on the end part of the lead, and the jack is a blind hole;
the connecting wire is coupled to one end of the connecting column far away from the conducting wire.
Through adopting above-mentioned technical scheme, if the insulating layer is damaged, water seepage to the junction of wire and connecting post, the jack is the blind hole, then blocks the seepage of water in the terminal, simultaneously, seals between the periphery of the inner periphery of sealing layer and extension line, blocks the seepage of water in the terminal periphery, and then avoids water infiltration in the terminal box.
Optionally, the sealing layer covers the periphery of the connecting column, and the other end of the sealing layer covers the periphery of the connecting line.
Through adopting above-mentioned technical scheme, realize sealed between the inner periphery of sealing layer and the periphery of spliced pole to utilize the sealing layer to provide insulating between two adjacent spliced poles.
Optionally, the extension line further comprises a separation layer, and the separation layer is wrapped on the periphery of the connecting line.
Through adopting above-mentioned technical scheme, utilize the separate layer to separate adjacent two strands of connecting wire, avoid two strands of connecting wire short circuits.
Optionally, the protective layer is further included, and the protective layer covers the periphery of the sealing layer.
By adopting the technical scheme, the protective layer is used for providing protection for the sealing layer, and the probability of damage of the sealing layer is reduced.
Optionally, the sealing sleeve is a heat shrink tube.
By adopting the technical scheme, the sealing sleeve is convenient to install, and after the sealing sleeve is shrunk, the sealing between the inner periphery of the sealing sleeve and the outer periphery of the protective layer and the sealing between the inner periphery of the sealing sleeve and the outer periphery of the sealing element are realized.
In summary, the present application includes at least one of the following beneficial technical effects:
1. if the protective layer is broken, a small amount of water permeates into the cable and downwards leaks to the sealing element along the gap between the insulating layers, at the moment, the sealing element and the insulating layer, the sealing element and the sealing sleeve are sealed, the sealing sleeve is sealed, the water is prevented from leaking, and the water is prevented from permeating into the junction box;
2. after the protective layer is damaged, make the insulating layer expose, and then probably lead to the insulating layer damaged, at this moment, in the water infiltration insulating layer to along the downward seepage in gap between wire and the insulating layer, when the water seepage was located to the coupling of extension line and wire, sealed between the periphery of the internal periphery of sealing layer and extension line, in order to stop the continuation seepage of water, and then avoid water infiltration in the terminal box.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural view of a cable.
Fig. 3 is a schematic view of the connection of the boot, washer and swivel nut.
Fig. 4 is a schematic view of the connection of the cable, seal and gland.
Figure 5 is a schematic cross-sectional view of the boot and epoxy layer.
FIG. 6 is a schematic cross-sectional view of the barrier, sealant and connecting column
Fig. 7 is an enlarged view at a in fig. 6.
Description of reference numerals: 10. a cable; 101. a wire; 102. an insulating layer; 103. a protective layer; 11. a protective sleeve; 111. a rubber sleeve; 112. a butting ring; 113. a baffle ring; 12. a gasket; 13. a threaded sleeve; 14. a seal member; 141. a through hole; 15. sealing sleeves; 16. an epoxy resin layer; 17. an extension line; 171. connecting columns; 172. a connecting wire; 173. a separation layer; 174. a jack; 18. a sealing layer; 19. and (4) a protective layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The junction box of the submersible motor is provided with a wiring hole for a cable to pass through, the wiring hole comprises a large hole and a small hole which are coaxially arranged and communicated, the large hole is communicated with the outer wall of the junction box, and the small hole is communicated with the inner wall of the junction box.
The inner diameter of the large hole is larger than that of the small hole, and a step surface is formed at the joint of the large hole and the small hole; meanwhile, threads are arranged on the inner periphery of the large hole.
Referring to fig. 1, the embodiment of the present application discloses a waterproof end of a motor cable, which includes a cable 10, a protective sleeve 11, a gasket 12, and a thread insert 13.
Referring to fig. 2, the cable 10 includes a conductive line 101, an insulating layer 102, and a protective layer 103.
The conducting wire 101 is provided with one or more strands, the insulating layer 102 is wrapped on the periphery of the conducting wire 101, the periphery of each strand of conducting wire 101 is wrapped with one insulating layer 102, and the protective layer 103 is wrapped on the peripheries of all the insulating layers 102. In this embodiment, taking four wires 101 as an example, four corresponding wires are disposed on the insulating layer 102.
Referring to fig. 1 and 3, the protective cover 11 includes a rubber cover 111 and an abutment ring 112.
The rubber sleeve 111 is sleeved and attached to the periphery of the protective layer 103 to form sealing between the rubber sleeve 111 and the protective layer 103; the abutting ring 112 is coaxially provided on the outer periphery of the rubber sleeve 111. The gasket 12 and the threaded sleeve 13 are sequentially sleeved on the periphery of the rubber sleeve 111, the end face of the gasket 12 abuts against the abutting ring 112, and the threaded sleeve 13 abuts against the end face of the gasket 12 away from the abutting ring 112; the screw sleeve 13 is provided with screw threads on the periphery.
During the use, rubber sleeve 111 pegs graft to the wiring hole of terminal box in, and the butt ring 112 deviates from the one end of swivel nut 13 inside towards the terminal box, simultaneously, swivel nut 13 passes through screw thread fixed connection in the macropore to make butt ring 112 support tight step face, in order to form sealedly between butt ring 112 and step face.
Referring to fig. 4 and 5, one end of the insulating layer 102 extends out of the protective layer 103, and the waterproof end head of the motor cable further comprises a sealing member 14 and a sealing sleeve 15.
The sealing member 14 is disc-shaped, and the sealing member 14 is provided with through holes 141, the number of the through holes 141 is the same as the number of the strands of the conductive wires 101, that is, in the embodiment, four through holes 141 are provided, four insulating layers 102 are respectively inserted into the four through holes 141, and one end of the sealing member 14 is attached to the end of the protective layer 103. Meanwhile, the outer circumference of the insulating layer 102 and the inner circumference of the through hole 141 are closely attached to each other, so that sealing is achieved.
The sealing sleeve 15 is sleeved to the outer periphery of the sealing member 14, and the axial length of the sealing sleeve 15 is greater than that of the sealing member 14, so that one end of the sealing sleeve 15 is sleeved to the outer periphery of the protective layer 103, and the other end of the sealing sleeve 15 is sleeved to the outer periphery of the insulating layer 102. Meanwhile, the inner circumference of the sealing sleeve 15 is closely attached to the outer circumference of the protective layer 103, and the inner circumference of the sealing sleeve 15 is closely attached to the outer circumference of the sealing member 14, thereby achieving sealing at two places.
In this embodiment, the sealing sleeve 15 is made of a heat shrinkable tube, and after the sealing sleeve 15 is sleeved on the outer periphery of the sealing member 14, the sealing sleeve 15 is heated to shrink so as to be closely attached to the outer peripheries of the protective layer 103 and the sealing member 14.
Referring to fig. 5, the inner circumference of the rubber sleeve 111 is further provided with a stopper ring 113, and one end of the stopper ring 113 abuts to the end of the sealing sleeve 15 to complete the axial positioning of the rubber sleeve 111. An epoxy resin layer 16 is also arranged between the protective sleeve 11 and the sealing sleeve 15, and the sealing sleeve 15 is tightly coated by the epoxy resin layer 16, so that the sealing effect is further improved; meanwhile, the epoxy layer 16 provides support for the rubber sleeve 111, so that the outer periphery of the rubber sleeve 111 closely fits the inner periphery of the small hole to improve the sealing effect with the inner periphery of the wiring hole.
Referring to fig. 6 and 7, an extension line 17 is further coupled to the conductive line 101, and the extension line 17 includes a connection post 171, a connection line 172, and a separation layer 173.
The connecting column 171 is cylindrical, the two ends of the connecting column 171 are coaxially provided with the insertion holes 174, the insertion holes 174 are blind holes, one end of the lead 101 extends out of the insulating layer 102 and is inserted into the insertion holes 174, and the coupling between the lead 101 and the connecting column 171 is completed; one end of the connecting wire 172 is inserted into another insertion hole 174 to complete the coupling between the connecting wire 172 and the connecting post 171, so that the current among the wire 101, the connecting post 171 and the connecting wire 172 is conducted; the separation layer 173 covers the connecting lines 172 to separate two adjacent connecting lines 172.
Referring to fig. 6 and 7, the waterproof end of the motor cable further comprises a sealing layer 18 and a protective layer 19.
The sealing layer 18 covers the periphery of the connecting column 171, and the axial length of the sealing layer 18 is greater than that of the connecting column 171, so that one end of the sealing layer 18 covers the periphery of the insulating layer 102, the other end of the sealing layer 18 covers the periphery of the dividing layer, and meanwhile, the sealing layer 18 is tightly attached to the peripheries of the insulating layer 102, the connecting column 171 and the dividing layer 173, so as to achieve sealing. The protective layer 19 is sleeved on the periphery of the sealing layer 18, and the axial length of the protective layer 19 is greater than that of the sealing layer 18 so as to provide protection for the sealing layer 18.
In this embodiment, the sealing layer 18 is made of heat shrinkable tube, and after the sealing layer 18 is sleeved on the outer periphery of the connection post 171, the sealing layer 18 is heated to shrink so as to be tightly adhered to the outer peripheries of the insulating layer 102, the connection post 171, and the separation layer 173.
The implementation principle of the waterproof end of the motor cable in the embodiment of the application is as follows: the protection sleeve 11 and the epoxy resin layer 16 realize the sealing between the inner periphery of the wiring hole and the outer periphery of the cable 10; when the protective layer 103 of the cable 10 is damaged and water is permeated, the sealing member 14 and the sealing sleeve 15 block the leakage of water; if the insulating layer 102 is damaged and water is leaked, the connecting column 171 and the sealing sleeve 15 block the water leakage; and then improve the leakproofness of motor cable end, avoid the terminal box to intake.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a waterproof end of motor cable, includes cable (10), cable (10) include one or stranded wire (101), cladding insulating layer (102) in the outside of every strand of wire (101) and cladding protective layer (103) in the outside of one or stranded insulating layer (102), and protective layer (103) are stretched out to the one end of insulating layer (102), its characterized in that: the sealing device also comprises a sealing element (14) and a sealing sleeve (15);
one or more through holes (141) are formed in the sealing element (14), the number of the through holes (141) is consistent with the number of the insulating layers (102), each insulating layer (102) penetrates into one through hole (141), and the insulating layer (102) extends out of one end, away from the protective layer (103), of the sealing element (14);
one end of the sealing sleeve (15) is sleeved to the periphery of the protective layer (103), and the other end of the sealing sleeve (15) is sleeved to the periphery of the sealing element (14);
the outer periphery of the insulating layer (102) and the inner periphery of the through hole (141) are sealed, the inner periphery of the sealing sleeve (15) and the outer periphery of the protective layer (103) are sealed, and the inner periphery of the sealing sleeve (15) and the outer periphery of the sealing element (14) are sealed.
2. The waterproof motor cable termination of claim 1, wherein: still include lag (11), lag (11) are cup jointed in the periphery of seal cover (15), it is sealed between lag (11) and seal cover (15), just lag (11) are used for inlaying and establish to the wiring hole of terminal box in.
3. The waterproof motor cable termination of claim 2, wherein: an epoxy resin layer (16) is arranged between the protective sleeve (11) and the sealing sleeve (15).
4. The waterproof motor cable termination of claim 3, wherein: the axial length of the protective sleeve (11) is greater than that of the sealing sleeve (15), and both axial ends of the sealing sleeve (15) are arranged in the protective sleeve (11);
the epoxy resin layer (16) is coated on the peripheries of the protective layer (103), the sealing sleeve (15) and the insulating layer (102).
5. The waterproof motor cable termination of claim 1, wherein: further comprises an extension line (17) and a sealing layer (18); one end of the extension line (17) is coupled with a lead (101); the sealing layer (18) covers the coupling part of the extension line (17) and the lead (101), one end of the sealing layer (18) covers the periphery of the insulating layer (102), and the other end of the sealing layer (18) covers the periphery of the extension line (17);
the inner periphery of the sealing layer (18) is sealed with the outer periphery of the insulating layer (102), and the inner periphery of the sealing layer (18) is sealed with the outer periphery of the extension line (17).
6. The waterproof motor cable termination of claim 5, wherein: the extension line (17) comprises a connecting column (171) and a connecting line (172);
one end of the connecting column (171) is provided with a jack (174), the jack (174) is sleeved to the end part of the lead (101), and the jack (174) is a blind hole;
the connecting wire (172) is coupled to one end of the connecting column (171) far away from the lead (101).
7. The waterproof motor cable termination of claim 6, wherein: the sealing layer (18) covers the periphery of the connecting column (171), and the other end of the sealing layer (18) covers the periphery of the connecting line (172).
8. The waterproof motor cable termination of claim 6, wherein: the extension line (17) further comprises a separation layer (173), and the separation layer (173) is wrapped on the periphery of the connecting line (172).
9. The waterproof motor cable termination of claim 5, wherein: the protective layer (19) is further included, and the protective layer (19) covers the periphery of the sealing layer (18).
10. The waterproof motor cable termination of claim 1, wherein: the sealing sleeve (15) adopts a heat shrinkable tube.
CN202110027089.0A 2021-01-09 2021-01-09 Waterproof end of motor cable Pending CN112820464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110027089.0A CN112820464A (en) 2021-01-09 2021-01-09 Waterproof end of motor cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110027089.0A CN112820464A (en) 2021-01-09 2021-01-09 Waterproof end of motor cable

Publications (1)

Publication Number Publication Date
CN112820464A true CN112820464A (en) 2021-05-18

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ID=75869844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110027089.0A Pending CN112820464A (en) 2021-01-09 2021-01-09 Waterproof end of motor cable

Country Status (1)

Country Link
CN (1) CN112820464A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007026821A (en) * 2005-07-14 2007-02-01 Auto Network Gijutsu Kenkyusho:Kk Shield conductor
CN101232217A (en) * 2008-01-14 2008-07-30 浙江大元泵业有限公司 Leak-proof cable connection sealing device
CN202221883U (en) * 2011-08-24 2012-05-16 合肥凯泉电机电泵有限公司 Hermetically-sealed structure of cable of submerged motor pump
CN102904373A (en) * 2012-10-12 2013-01-30 友力机电有限公司 Waterproofing device of cable coupling box
CN204117637U (en) * 2014-10-16 2015-01-21 上海矿山电缆制造有限公司 A kind of submersible motor cable seal head and production mould thereof
CN208581035U (en) * 2018-08-17 2019-03-05 浙江宇视科技有限公司 Waterproof connector and waterproof cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007026821A (en) * 2005-07-14 2007-02-01 Auto Network Gijutsu Kenkyusho:Kk Shield conductor
CN101232217A (en) * 2008-01-14 2008-07-30 浙江大元泵业有限公司 Leak-proof cable connection sealing device
CN202221883U (en) * 2011-08-24 2012-05-16 合肥凯泉电机电泵有限公司 Hermetically-sealed structure of cable of submerged motor pump
CN102904373A (en) * 2012-10-12 2013-01-30 友力机电有限公司 Waterproofing device of cable coupling box
CN204117637U (en) * 2014-10-16 2015-01-21 上海矿山电缆制造有限公司 A kind of submersible motor cable seal head and production mould thereof
CN208581035U (en) * 2018-08-17 2019-03-05 浙江宇视科技有限公司 Waterproof connector and waterproof cable

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Application publication date: 20210518

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