CN210576533U - Insulation structure at connection position of motor lead and cable - Google Patents

Insulation structure at connection position of motor lead and cable Download PDF

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Publication number
CN210576533U
CN210576533U CN201921499202.XU CN201921499202U CN210576533U CN 210576533 U CN210576533 U CN 210576533U CN 201921499202 U CN201921499202 U CN 201921499202U CN 210576533 U CN210576533 U CN 210576533U
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China
Prior art keywords
binding post
metal binding
motor lead
sheath box
cable
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CN201921499202.XU
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Chinese (zh)
Inventor
车千里
陈浩
刘宝安
骆川
孙立明
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Hebei Chenghe Longsheng Power Engineering Co Ltd
Beijing Chenghelongsheng Engineering Technology Co ltd
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Hebei Chenghe Longsheng Power Engineering Co Ltd
Beijing Chenghelongsheng Engineering Technology Co ltd
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Abstract

The utility model discloses an insulation system of motor lead wire and cable conductor junction, which comprises an insulator, set up to holding the chamber along the axial in the insulator, the insulator holds the upper end in chamber and is equipped with the metal binding post who casts an organic whole, the metal binding post part stretches out the up end of insulator, metal binding post's upper end is connected with the cable conductor, metal binding post's lower extreme is connected with the motor lead wire, metal binding post with cable conductor junction is equipped with sheath box, it has the cover to fill between the space of metal binding post and sheath box metal binding post's insulating glue. The utility model provides an insulation system of motor lead wire and cable conductor junction can prevent steam and heat accumulation in the sheath box effectively, has improved the waterproof performance of motor lead wire and cable conductor junction greatly, and heat dispersion, phase ground, alternate insulating properties reduce the fault incidence.

Description

Insulation structure at connection position of motor lead and cable
Technical Field
The utility model belongs to electric power system protector field, concretely relates to insulation system of motor lead wire and cable conductor junction department.
Background
The high-voltage motor is used as an important mechanical power source in the production industries of thermal power, refining, metallurgy and the like, the installation quantity is large, the operation environment is complex, and the reliable operation of the motor is crucial to the continuous operation capability of a production line. In the prior art, in order to effectively achieve the purpose of phase isolation at the connection position of a motor lead and a cable, a feed-through insulator is arranged at the connection position of the motor lead and the cable, the motor lead is connected with a conductive rod at the center of the feed-through insulator, a binding post and a matched hardware fitting are arranged at the top of the feed-through insulator, and an external cable is electrically connected with the motor lead through the binding post. However, in the operation process, the matching hardware at the top of the feedthrough insulator and the connection part between the hardware and the binding post and the external cable line can cause interphase short circuit and cause immeasurable loss due to the corrosion of severe environment and the lap joint of foreign matters or other conductive substances in the long-term operation, and the problem of interphase short circuit caused by pollutants is mainly solved by adopting a sheath box at the top of the feedthrough insulator in the prior art.
In the actual use process, because the internal temperature is different and the external environment temperature changes when the motor is started or stopped, the air pressure difference exists between the inside and the outside of the motor, the respiration effect is easy to generate, and external water vapor enters the sheath box and the cavity of the motor along with air to generate condensation, so that the motor insulation accident is caused. At present, a plurality of motors are internally provided with heating devices, so that great help is brought to the relief of the respiratory effect and the condensation problem, but along with the lengthening of the operation time, the influence on the sheath box after the water vapor accumulation is increased sharply. The problem of explosion of the sheath box caused by phase ground short circuit fault caused by condensation and contamination of the sheath box has occurred in the industry.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses a main aim at provides an insulation system of motor lead wire and cable conductor junction department aims at solving current insulation system cladding nature poor, leads to insulating properties to descend and unstable problem.
The utility model aims at realizing through the following technical scheme:
the utility model provides an insulation system of motor lead wire and cable junction department, includes the insulator, set up to holding the chamber along the axial in the insulator, the insulator holds the upper end in chamber and is equipped with casts integrative metallic interconnect post, the metallic interconnect post part stretches out the up end of insulator, metallic interconnect post's upper end is connected with the cable conductor, metallic interconnect post's lower extreme is connected with the motor lead wire, metallic interconnect post with cable conductor wiring department is equipped with the sheath box, it has the cover to fill between the space of metallic interconnect post and sheath box metallic interconnect post's insulating glue.
Preferably, wherein the sheath box includes that transverse section is cylindric and one end open-ended sheath box body, this internal ability suit that is provided with of sheath box is in the cavity of metal binding post, be provided with the cable conductor on the lateral wall of sheath box body and export, the junction that sheath box body and cable conductor were exported is provided with an opening, in the opening part outwards is provided with corresponding lockrand.
Preferably, the lock stitching edges are arranged as sawtooth stripes, and the sawtooth stripes of the two lock stitching edges can be buckled with each other.
Preferably, the lock edge further comprises a rubber rivet, and a plurality of lock holes matched with the rubber rivet are uniformly formed in the lock edge.
Preferably, one of the locking edges is provided with a protrusion with a T-shaped cross section, and the other locking edge is provided with a groove with a U-shaped cross section, wherein the groove is matched with the protrusion.
Preferably, the insulating glue is made of soft plastic materials which can be kneaded into any shape.
Preferably, the sheath box body and the locking edge are both made of insulating plastic materials.
Preferably, the sheath box body and the lockstitching are both made of silicone material.
Preferably, the sheath box body and the lockdown edge are both made of a silicone fluoride material.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model provides an insulation system of motor lead wire and cable conductor junction, including the insulator, set up to holding the chamber along the axial in the insulator, the upper end that the chamber was held to the insulator is equipped with the metal binding post who casts integrative, the metal binding post part stretches out the up end of insulator, the upper end of metal binding post is connected with the cable conductor, the lower extreme of metal binding post is connected with the motor lead wire, metal binding post with cable conductor wiring department is equipped with the sheath box, it has the insulating cement that covers the metal binding post to fill between the space of metal binding post and sheath box; during the specific use, at first, lift anchor clamps (gold utensil) on cable conductor, the cable conductor off, install the sheath box to metal binding post's root (with the up end laminating of insulator) along metal binding post, then fill insulating cement in the gap department of this sheath box and metal binding post, be full of the insulating cement with the complete of this metal binding post and cover, at last with the anchor clamps playback installation on cable conductor and the cable conductor, can. The insulation structure can effectively prevent water vapor and heat from accumulating in the sheath box, greatly improves the waterproof performance of the connection part of the motor lead and the cable, has heat dispersion performance and interphase insulation performance, and reduces the fault occurrence rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a cross-sectional view of the overall structure of the insulation structure provided by the present invention;
fig. 2 is a schematic structural diagram of a sheath box in an insulation structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Example 1
As shown in fig. 1, an insulation system of motor lead wire and cable conductor junction, including insulator 1, set up along the axial in insulator 1 and set up to holding the chamber, the upper end that holds the chamber at insulator 1 is equipped with casts integrative metallic interconnect 2, metallic interconnect 2 part stretches out the up end of insulator 1, metallic interconnect 1's upper end is connected with cable conductor 3, metallic interconnect 2's lower extreme is connected with motor lead wire 4, metallic interconnect 2 is equipped with sheath box 5 with cable conductor 3 junction, it has the insulating cement 6 that covers metallic interconnect 2 to fill between metallic interconnect 2 and the space of sheath box 5.
As shown in fig. 2, a preferred technical solution of the present embodiment is that the sheath box 5 includes a sheath box body 51 having a cylindrical transverse cross section and an open end, a cavity capable of being sleeved on the metal terminal 2 is provided in the sheath box body 51, a cable outlet 52 is provided on a side wall of the sheath box body 51, an opening is provided at a connection position of the sheath box body 51 and the cable outlet 52, and a corresponding locking edge 53 is provided outward at the opening. When the cable clamp is used specifically, firstly, the cable and a cable clamp (hardware fitting) are dismounted; the hole matched with the diameter of the metal binding post 2 is formed in one end, not opened, of the sheath box 5 according to the size of the metal binding post 2 in the actual use process, then one end, provided with the hole matched with the metal binding post 2, of the sheath box 5 is installed to the root of the metal binding post 2 along the metal binding post 2, after the installation is completed, the cable 3 and the cable 3 are installed in a returning mode through a clamp 53 at the opening, after the installation is completed, the sheath box is fixed through a locking edge 53 at the opening, and finally, the gap between the sheath box 5 and the metal binding post 2 and the opening end of the sheath box 5 are filled with insulating glue 6 until the metal binding post 2 is completely covered with the insulating glue 6.
A preferred technical solution of this embodiment is that, the locking edge 53 is provided with a sawtooth stripe, and the sawtooth stripes of the two locking edges can be buckled with each other; when the insulating structure is used specifically, the sawtooth stripes on the two lock edges are buckled with each other, so that the sheath box can be installed and fixed conveniently and quickly, and the technical support is improved for further improving the convenience and practicability of the insulating structure.
A preferred technical solution of this embodiment is that it further includes a rubber rivet, and a plurality of locking holes matched with the rubber rivet are uniformly arranged on the locking edge 53; when the insulating structure is used specifically, the rubber rivet penetrates through the lock hole, the sheath box can be installed and fixed conveniently and quickly, the fastening structure has the fastening and sealing characteristics, and the technical support is improved for further improving the convenience and practicability of the insulating structure.
One preferable technical scheme of the embodiment is that one of the lock edges is provided with a bulge with a T-shaped cross section, and the other lock edge is provided with a groove with a U-shaped cross section, which is matched with the bulge; when the insulating structure is used, the bulge on one lock edge is matched with the groove on the other lock edge, so that the sheath box can be installed and fixed conveniently and quickly, and the technical support is improved for further improving the convenience and practicability of the insulating structure;
example 2
On the basis of the embodiment 1, the insulating glue 6 is made of a soft plastic material which can be kneaded into any shape, the embodiment adopts a plugging glue with excellent performance as the insulating glue of the insulating structure, the plugging glue is a high-pressure insulating plugging glue which is published in the Chinese patent with the patent number of CN104610905A, the plugging glue is made into a block shape and can be directly kneaded into any shape by hand to be plugged, and the high-pressure insulating plugging glue has strong randomness and is simple and convenient to use; the plugging glue has excellent flame retardance, electrical property and bonding strength, and simultaneously has shockproof and waterproof functions. And the hand sticking is avoided during the kneading operation in the using process, the phenomenon of flowing of the plugging glue before solidification is avoided, and the attractiveness of the seal is ensured. Choose above-mentioned shutoff to glue as the insulating cement of this embodiment for use and guaranteed this insulation system's constructability and insulating nature, provide technical support for further improving this insulation system's insulating properties and practicality.
Example 3
On the basis of the above embodiment, the sheath box body 51 and the locking edge 53 are both made of insulating plastic material. The insulating plastic material is a plastic (flexible) material formed by processing and molding synthetic resin with high molecular weight as a main component and adding proper additives such as a plasticizer, a stabilizer, a flame retardant, a lubricant, a coloring agent and the like or a rigid material formed by curing and crosslinking, has excellent insulating property, and the sheath box 5 prepared from the material can well ensure the insulating property.
Example 4
On the basis of embodiment 1 and/or 2, wherein the sheath box body 51 and the lockstitching 53 are both made of silicone material; the organosilicon material has high and low temperature resistance, corrosion resistance and irradiation resistance, and simultaneously has excellent electrical insulation, water resistance and weather resistance, can be bonded with metal, plastic, rubber, glass, ceramics and the like, and is widely applied to bonding and sealing in the aspects of cosmic navigation, aircraft manufacturing, electronic industry, machining, automobile manufacturing, building and medical treatment; the sheath box 5 prepared from the organic silicon material can well ensure the insulating property, the heat dissipation property, the chemical corrosion resistance and the aging resistance, and provides technical support for further improving the comprehensive use performance of the insulating structure.
Example 5
In addition to the embodiments 1 and/or 2, the sheath box body 51 and the locking edge 53 are both made of silicone fluoride material. The organic silicon fluorine material is prepared by taking silicon fluorine rubber as a base material and adding substances such as flame retardant, electric arc resistance, reinforcement, heat conduction materials and the like for physical mixing. In the product design process, the functions of insulation, flame retardance, heat conductivity, aging resistance and the like of the material are modulated in a targeted manner. Therefore, the organic silicon fluorine material not only has good insulating property, but also has excellent flame retardant property and heat conducting property. The organic silicon fluorine material has the characteristics of good insulating property, good hydrophobic and moisture-proof performance, excellent weather resistance and the like, and the service life of the organic silicon fluorine material can exceed 20 years when the organic silicon fluorine material is used outdoors; therefore, the sheath box 5 prepared from the organic silicon fluoride material can well ensure the waterproof performance, the insulating performance, the heat dissipation performance, the chemical corrosion resistance, the aging resistance and the self-cleaning performance, and provides technical support for further improving the comprehensive use performance of the insulating structure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides an insulation system of motor lead wire and cable junction, a serial communication port, which comprises an insulator, set up to holding the chamber along the axial in the insulator, the insulator holds the upper end in chamber and is equipped with the metal binding post who casts an organic whole, the metal binding post part stretches out the up end of insulator, metal binding post's upper end is connected with the cable conductor, metal binding post's lower extreme is connected with the motor lead wire, metal binding post with cable conductor wiring department is equipped with the sheath box, it has the cover to fill between the space of metal binding post and sheath box metal binding post's insulating glue.
2. The insulation structure for the connection between the motor lead and the cable according to claim 1, wherein the sheath box comprises a sheath box body with a cylindrical transverse cross section and an open end, a cavity is disposed in the sheath box body and can be sleeved on the metal binding post, a cable outlet is disposed on a sidewall of the sheath box body, an opening is disposed at the connection between the sheath box body and the cable outlet, and a corresponding locking edge is disposed outward at the opening.
3. The insulation structure at the connection position of the motor lead and the cable according to claim 2, wherein the locking edges are arranged into sawtooth stripes, and the sawtooth stripes of the two locking edges can be buckled with each other.
4. The insulation structure at the connection part of the motor lead and the cable according to claim 2, further comprising rubber rivets, wherein a plurality of lock holes matched with the rubber rivets are uniformly arranged on the lock edge.
5. The insulation structure at the connection of the motor lead and the cable according to claim 2, wherein one of the locking edges is provided with a protrusion with a T-shaped cross section, and the other locking edge is provided with a groove with a U-shaped cross section, which is matched with the protrusion.
6. The insulation structure at the connection of the motor lead and the cable according to claim 1, wherein the insulation paste is made of a soft plastic material that can be kneaded into any shape.
7. The insulation structure at the connection of the motor lead and the cable according to claim 2, wherein the sheath box body and the locking edge are both made of an insulating plastic material.
8. The insulation structure at the junction of the motor lead and the cable according to claim 2, wherein the sheath box body and the lockstitching are both made of silicone material.
9. The insulation structure at the connection of the motor lead and the cable according to claim 2, wherein the sheath box body and the locking edge are both made of silicone fluoride material.
CN201921499202.XU 2019-09-10 2019-09-10 Insulation structure at connection position of motor lead and cable Active CN210576533U (en)

Priority Applications (1)

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CN201921499202.XU CN210576533U (en) 2019-09-10 2019-09-10 Insulation structure at connection position of motor lead and cable

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Application Number Priority Date Filing Date Title
CN201921499202.XU CN210576533U (en) 2019-09-10 2019-09-10 Insulation structure at connection position of motor lead and cable

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111987067A (en) * 2020-07-30 2020-11-24 吉林华微电子股份有限公司 Device lead assembly and semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111987067A (en) * 2020-07-30 2020-11-24 吉林华微电子股份有限公司 Device lead assembly and semiconductor device

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