CN217181864U

CN217181864U - Irradiation cross-linked polyethylene insulation motor winding leading flexible cable

Info

Publication number: CN217181864U
Application number: CN202123276442.3U
Authority: CN
Inventors: 谢枕毅; 谢国华; 陆和平
Original assignee: Jiangyin Heat Resistant Wire and Cable Factory Co Ltd
Current assignee: Jiangyin Heat Resistant Wire and Cable Factory Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-08-12
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses an irradiation cross-linked polyethylene insulation motor winding leading flexible cable, which comprises a cable; one end of the cable is provided with a motor wiring end, a penetrating copper pipe is arranged on the motor wiring end, an annular groove is formed in the outer surface of the copper pipe, an installing head is arranged at the other end of the cable, a detachable power connection terminal is installed at the end of the installing head, and a plug-in connector is arranged at the end of the detachable power connection terminal; the utility model discloses set up the motor wiring end respectively at the both ends of cable and can dismantle the electrical terminal that connects, the copper pipe that has the annular groove that sets up on the motor wiring end can make things convenient for motor winding's lead wire directly to pass the motor wiring end and twine and connect to guarantee cable and motor winding lead wire connection's fastness, can dismantle electrical terminal copper pipe bayonet joint and connect electrical terminal convenient cable and power end to be connected, and whole cable is convenient and fast more at the installation, and the security is higher.

Description

Irradiation cross-linked polyethylene insulation motor winding leading flexible cable

Technical Field

The utility model relates to a motor cable technical field specifically is an irradiation crosslinked polyethylene insulated machine winding draws and connects flexible cable.

Background

The motor winding is a winding arranged on the stator, namely a copper wire wound on the stator, the winding is a general name of a phase or a whole electromagnetic circuit formed by a plurality of coils or coil groups, the motor can be divided into a centralized type and a distributed type according to different winding shapes and embedding wiring modes of the coils, and in order to ensure the normal work of the motor, the copper wire of the motor winding needs to be powered by an external power supply by adopting a lead-in flexible cable.

The existing motor winding leading flexible cable has the defects that:

1. the existing motor winding lead flexible cable is generally a simple cable, is inconvenient to be connected with a lead of a motor winding and a power supply when in use, particularly adopts a welding mode when being connected with the lead of the winding, is easy to fall off due to pulling when being used for a long time, and has poor safety.

2. The insulation material that current motor winding draws and connects flexible cable all is traditional insulation protection structure, and because the motor need work for a long time so the conductor of cable can appear great condition of generating heat, the sinle silk that ordinary draws and connect the cable exists not enoughly in the aspect of fire-retardant thermal-insulated protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an irradiation crosslinked polyethylene insulated machine winding draws and connects flexible cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a radiation cross-linked polyethylene insulation motor winding leading flexible cable comprises a cable; one end of the cable is provided with a motor wiring end, a penetrating copper pipe is arranged on the motor wiring end, an annular groove is formed in the outer surface of the copper pipe, an installing head is arranged at the other end of the cable, a detachable power connection terminal is installed at the end of the installing head, and a plug-in connector is arranged at the end of the detachable power connection terminal;

the cable is including the conductor of stranding into the sinle silk, and the surface parcel of conductor has polyethylene around the covering, polyethylene has fire-retardant protective layer around the surface parcel of covering, and the surface of fire-retardant protective layer is equipped with the cross-linked polyethylene layer, the cross-linked polyethylene layer adopts irradiation cross-linking extrusion molding.

Preferably, the outer surface of the crosslinked polyethylene layer is woven with a fiber woven layer, and the outer surface of the fiber woven layer is wrapped with a rubber sleeve.

Preferably, motor wiring end and the conductor fixed connection at cable center, and the surface cover of motor wiring end is equipped with the connecting sleeve who is connected with the outer parcel layer of cable, and the end of connecting sleeve is equipped with the connector of parcel at motor wiring end surface.

Preferably, the outer ring of the mounting head is provided with a fixing ring, and the detachable electric terminals are fixedly connected with the mounting head through mounting feet matched with the fixing ring at two sides.

Preferably, the mounting leg is internally provided with a fixing bolt penetrating through the fixing ring, and the inner side of the fixing ring is provided with a fixing nut sleeved at the end of the fixing bolt.

Preferably, the conductor penetrates through the mounting head and extends to the interior of the detachable electric terminal, a conductive sleeve sleeved on the outer surface of the conductor is arranged in the detachable electric terminal, and the conductor is sleeved in a cone frustum type jack of the conductive sleeve.

Preferably, the output end of the conductive sleeve is provided with a conductive sheet, and the conductive sheet is electrically connected with the plug connector through a conductive rod.

Preferably, the positive inside of bayonet joint is equipped with the jack, and the inside of jack is equipped with the mounting bar with conducting rod electric connection, and the front equidistant of mounting bar is equipped with connects the electric plug.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses set up the motor wiring end respectively at the both ends of cable and can dismantle the electrical terminal that connects, the copper pipe that has the annular groove that sets up on the motor wiring end can make things convenient for motor winding's lead wire directly to pass the motor wiring end and twine and be connected to guarantee cable and motor winding pin connection's fastness, can dismantle electrical terminal copper pipe bayonet joint and connect the electrical plug to make things convenient for the cable to be connected with the power end, and whole cable is convenient and fast more at the installation, and the security is higher.

2. The utility model discloses a crosslinked polyethylene layer that irradiation process prepared is as the cable protection layer, and polyethylene makes to generate the cross-linking between its macromolecule at high energy ray (like gamma ray, alpha ray, electron ray etc.), can improve performance such as its heat-resisting, adopts crosslinked polyethylene to make insulating cable, and its long-term operating temperature can improve 90 ℃, and the instantaneous short circuit temperature that can bear can reach 170 and give other 250 ℃, and then has guaranteed the long-term high temperature resistant effect of cable, and then the security of the long-time during operation cable of assurance motor.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the outer surface of the present invention;

fig. 3 is a schematic cross-sectional structure of the present invention;

fig. 4 is a schematic diagram of the internal structure of the terminal of fig. 2 according to the present invention.

In the figure: 1. a cable; 2. a connecting sleeve; 201. a connector; 3. a motor terminal; 301. a copper pipe; 302. an annular groove; 4. a rubber sleeve; 5. a fiber braid layer; 6. a crosslinked polyethylene layer; 7. a flame retardant protective layer; 8. a conductor; 9. a mounting head; 901. a fixing ring; 902. fixing a nut; 10. the detachable electric connection terminal; 1001. mounting a foot; 1002. fixing the bolt; 1003. a conductive sleeve; 1004. a truncated cone shaped jack; 1005. a conductive sheet; 1006. a conductive rod; 11. a plug-in connector; 1101. a jack; 1102. connecting a power plug; 1103. mounting a bar; 12. polyethylene is around covering.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a radiation cross-linked polyethylene insulation motor winding leading flexible cable comprises a cable 1; one end of the cable 1 is provided with a motor wiring terminal 3, a through copper pipe 301 is arranged on the motor wiring terminal 3, an annular groove 302 is formed in the outer surface of the copper pipe 301, an installing head 9 is arranged at the other end of the cable 1, a detachable power connection terminal 10 is installed at the end of the installing head 9, and a plug-in connector 11 is arranged at the end of the detachable power connection terminal 10;

the cable 1 comprises a conductor 8 twisted into a wire core, the outer surface of the conductor 8 is wrapped with a polyethylene wrapping layer 12, the outer surface of the polyethylene wrapping layer 12 is wrapped with a flame-retardant protective layer 7, the outer surface of the flame-retardant protective layer 7 is provided with a crosslinked polyethylene layer 6, and the crosslinked polyethylene layer 6 is formed by irradiation crosslinking and extrusion molding;

specifically, the copper pipe 301 on the motor wiring end 3 can facilitate the through connection of the motor winding lead, and fixedly connect the motor winding lead with the motor wiring end 3 in a mode of winding the copper pipe onto the annular groove 302, the mounting head 9 is convenient for mounting and dismounting the electric connection terminal 10, the plug-in connector 11 at the end of the detachable electric connection terminal 10 can conveniently detach the electric connection terminal 10 to be directly connected with a power supply, the whole mounting process is convenient and rapid, the connection part of the motor and a cable is firm, and the falling-off condition can not occur, the conductor 8 can transmit electric energy, the polyethylene wrapping layer 12 and the flame-retardant protective layer 7 can play the protection effects of insulation and flame retardance, the high-temperature resistance effect of the cable 1 can be ensured by adopting the irradiation crosslinking extrusion molding crosslinked polyethylene layer 6, (the polyethylene can generate crosslinking among macromolecules (such as gamma rays, alpha rays, electronic rays and the like), the heat resistance and other performances of the cable can be improved, the long-term working temperature of the cable adopting the crosslinked polyethylene as the insulation can be increased to 90 ℃, and the endurable instantaneous short-circuit temperature can reach 170-250 ℃, so that the stable working of the cable can be ensured for a long time.

Further, a fiber braided layer 5 is braided on the outer surface of the crosslinked polyethylene layer 6, and the rubber sleeve 4 is wrapped on the outer surface of the fiber braided layer 5;

specifically, the tensile resistance of whole cable can be guaranteed to fibre weaving layer 5, and rubber sleeve 4 can protect fibre weaving layer 5, and can increase insulating effect.

Further, the motor wiring end 3 is fixedly connected with a conductor 8 in the center of the cable 1, a connecting sleeve 2 connected with an outer wrapping layer of the cable 1 is sleeved on the outer surface of the motor wiring end 3, and a connector 201 wrapped on the outer surface of the motor wiring end 3 is arranged at the end of the connecting sleeve 2;

specifically, connecting sleeve 2 can protect the motor wiring end 3 and the conductor 8 junction, and connector 201 can make things convenient for the stability that motor wiring end 3 connects.

Further, a fixing ring 901 is arranged on the outer ring of the mounting head 9, and the detachable electric terminals 10 are fixedly connected with the mounting head 9 through mounting pins 1001 with two sides matched with the fixing ring 901;

specifically, the fixing ring 901 can be conveniently and fixedly connected with the mounting pin 1001, so that the electric terminal 10 can be conveniently and detachably mounted.

Further, a fixing bolt 1002 penetrating through the fixing ring 901 is installed inside the installation leg 1001, and a fixing nut 902 sleeved on the end of the fixing bolt 1002 is arranged on the inner side of the fixing ring 901;

specifically, the fixing bolt 1002 may penetrate through the mounting leg 1001 and the fixing ring 901 to be fixedly connected with the fixing nut 902, so as to ensure the fixed connection between the mounting leg 1001 and the fixing ring 901.

Further, the conductor 8 penetrates through the mounting head 9 and extends into the detachable electric terminal 10, a conductive sleeve 1003 sleeved on the outer surface of the conductor 8 is arranged inside the detachable electric terminal 10, and the conductor 8 is sleeved inside a truncated cone type jack 1004 of the conductive sleeve 1003;

specifically, when the detachable electric terminal 10 is mounted on the mounting head 9, the conductor 8 is inserted into the conductive sleeve 1003, so as to realize the transmission of electric energy, and the cone frustum type jack 1004 can ensure the stability and firmness of the conductor 8 when being inserted into the detachable electric terminal 10.

Further, a conducting strip 1005 is disposed at the output end of the conducting sleeve 1003, and the conducting strip 1005 is electrically connected to the plug 11 through the conducting rod 1006;

specifically, the conductive sheet 1005 can ensure that the conductive sleeve 1003 transmits electric energy to the conductive rod 1006, so as to be electrically connected to the connector 11.

Further, a jack 1101 is arranged inside the front face of the plug 11, a mounting strip 1103 electrically connected with the conductive rod 1006 is arranged inside the jack 1101, and power connection plugs 1102 are arranged on the front face of the mounting strip 1103 at equal intervals;

specifically, the jack 1101 can facilitate the setting of the mounting bar 1103, so as to facilitate the setting of the power plug 1102, the power plug 1102 arranged in the jack 1101 can ensure the safety during operation, and the power supply can be conveniently connected.

The working principle is as follows: during the use, carry out fixed connection with cable 1 through motor wiring end 3 and motor winding lead wire, then carry out lug connection through bayonet joint 11 that can dismantle the 10 ends of electrical connection terminal and power, whole installation convenient and fast, and the motor is firm with cable junction, the condition that drops can not appear, conductor 8 can transmit the electric energy, polyethylene can play insulating and fire-retardant protecting effect around covering 12 and fire-retardant protective layer 7, adopt irradiation crosslinking extrusion molding crosslinked polyethylene layer 6 can guarantee cable 1's high temperature resistant effect, guarantee its stable work that can be long-time.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A radiation cross-linked polyethylene insulation motor winding leading flexible cable comprises a cable (1); the method is characterized in that: a motor wiring end (3) is arranged at one end of the cable (1), a through copper pipe (301) is arranged on the motor wiring end (3), an annular groove (302) is formed in the outer surface of the copper pipe (301), an installing head (9) is arranged at the other end of the cable (1), a detachable electric connection terminal (10) is installed at the end of the installing head (9), and a plug-in connector (11) is arranged at the end of the detachable electric connection terminal (10);

cable (1) is including twisting conductor (8) into the sinle silk, and the surface parcel of conductor (8) has polyethylene around covering (12), the surface parcel of polyethylene around covering (12) has fire-retardant protective layer (7), and the surface of fire-retardant protective layer (7) is equipped with crosslinked polyethylene layer (6), crosslinked polyethylene layer (6) adopt irradiation crosslinking extrusion molding.

2. The irradiation crosslinked polyethylene insulated motor winding lead-in flexible cable according to claim 1, characterized in that: the outer surface of the cross-linked polyethylene layer (6) is woven with a fiber woven layer (5), and the outer surface of the fiber woven layer (5) is wrapped with a rubber sleeve (4).

3. The irradiation crosslinked polyethylene insulated motor winding connection flexible cable according to claim 1, characterized in that: motor wiring end (3) and conductor (8) fixed connection at cable (1) center, and the surface cover of motor wiring end (3) is equipped with connecting sleeve (2) of being connected with the outer parcel layer of cable (1), and the end of connecting sleeve (2) is equipped with connector (201) of parcel at motor wiring end (3) surface.

4. The irradiation crosslinked polyethylene insulated motor winding lead-in flexible cable according to claim 1, characterized in that: the outer ring of the mounting head (9) is provided with a fixing ring (901), and the detachable electric terminals (10) are fixedly connected with the mounting head (9) through mounting feet (1001) with two side edges matched with the fixing ring (901).

5. The irradiation crosslinked polyethylene insulated motor winding lead-in flexible cable according to claim 4, characterized in that: the mounting foot (1001) is internally provided with a fixing bolt (1002) penetrating through the fixing ring (901), and the inner side of the fixing ring (901) is provided with a fixing nut (902) sleeved at the end of the fixing bolt (1002).

6. The irradiation crosslinked polyethylene insulated motor winding lead-in flexible cable according to claim 1, characterized in that: the conductor (8) runs through the mounting head (9) and extends to the inside of dismantling electric terminal (10), the inside of dismantling electric terminal (10) is equipped with electrically conductive sleeve (1003) of suit at conductor (8) surface, and conductor (8) suit is inside the circular truncated cone type jack (1004) of electrically conductive sleeve (1003).

7. The irradiation crosslinked polyethylene insulated motor winding lead-in flexible cable according to claim 6, characterized in that: the output end of the conductive sleeve (1003) is provided with a conductive sheet (1005), and the conductive sheet (1005) is electrically connected with the plug connector (11) through the conductive rod (1006).

8. The irradiation crosslinked polyethylene insulated motor winding connection flexible cable according to claim 1 or 7, characterized in that: the plug connector is characterized in that a jack (1101) is arranged inside the front face of the plug connector (11), a mounting bar (1103) electrically connected with the conducting rod (1006) is arranged inside the jack (1101), and electric plugs (1102) are arranged on the front face of the mounting bar (1103) at equal intervals.