阅读说明：本技术 一种低温绝缘高温超导电缆高压终端 (Low-temperature insulation high-temperature superconducting cable high-voltage terminal ) 是由 不公告发明人 于 2021-05-28 设计创作，主要内容包括：本发明公开了一种低温绝缘高温超导电缆高压终端,包括绝缘管线,所述绝缘管线的顶部固接有安装套,所述安装套的外侧设有防护机构。该低温绝缘高温超导电缆高压终端,可通过外罩在端子接线后对其起到防护作用,且可避免他人误碰,通过橡胶锥盘和切口的设置,可对外罩的顶部进行封堵,避免水流进入外罩内,进一步提升对端子的保护效果,可避免热缩管与绝缘管线的外壁连接处渗水,便于对热缩管和单孔伞群之间进行拆装,提升使用便捷性,可通过顶杆的设置,以及锥套与绝缘管线的螺纹连接,使得锥套上下旋动可带动顶杆同时向心或离心滑动,进而可对缆线接头起到限位固定作用,进而提升连接稳定性。(The invention discloses a low-temperature insulation high-temperature superconducting cable high-voltage terminal which comprises an insulation pipeline, wherein the top of the insulation pipeline is fixedly connected with an installation sleeve, and the outer side of the installation sleeve is provided with a protection mechanism. This low temperature insulation high temperature superconducting cable high voltage terminal, the accessible dustcoat plays the guard action to it after the terminal wiring, and can avoid other people mistake to bump, through rubber conical disc and notched setting, can carry out the shutoff to the top of dustcoat, avoid in the rivers get into the dustcoat, further promote the protection effect to the terminal, can avoid pyrocondensation pipe and insulated pipeline's outer wall junction infiltration, be convenient for carry out the dismouting between pyrocondensation pipe and the haplopore parachute kit, promote the use convenience, the setting of accessible ejector pin, and the threaded connection of taper sleeve and insulated pipeline, make the upper and lower rotating of taper sleeve can drive the ejector pin simultaneously and entad or the centrifugal slip, and then can play spacing fixed action to the cable joint, and then promote connection stability.)

1. A low temperature insulation high temperature superconducting cable high voltage terminal, includes insulated pipeline (1), its characterized in that: the top of the insulated pipeline (1) is fixedly connected with an installation sleeve (4), and the outer side of the installation sleeve (4) is provided with a protection mechanism (6);

the protection mechanism (6) comprises a lantern ring (601), an outer cover (602), an insert rod (603), a baffle (604), a first spring (605), a shift lever (606) and a clamping groove (607);

the outer wall in installation cover (4) is cup jointed in lantern ring (601), the outer wall top rigid coupling of lantern ring (601) has dustcoat (602), the both sides sliding connection of lantern ring (601) has inserted bar (603), the outer end rigid coupling of inserted bar (603) has baffle (604), the outer wall of inserted bar (603) has cup jointed first spring (605), the both ends of first spring (605) respectively with baffle (604) and lantern ring (601) fixed connection, the inner of inserted bar (603) is through draw-in groove (607) and the outer wall joint of installation cover (4), the inner below of corner (604) supports tightly has driving lever (606), the both ends of the both ends rotation of the both ends of the lantern ring (601) of driving lever (606) are connected.

2. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: the mounting sleeve (4) is provided with a terminal (5), and the terminal (5) is fixedly connected with the inner wall of the mounting sleeve (4).

3. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: and a wiring socket (2) is arranged at the bottom of the insulated pipeline (1).

4. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: the cable connector (3) is arranged inside the wiring socket (2), and the outer wall of the cable connector (3) is connected with the inner wall of the wiring socket (2) in an inserting mode.

5. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: a plugging mechanism (9) is arranged in the outer cover (602);

the plugging mechanism (9) comprises a rubber conical disc (901) and a notch (902);

the outer wall of the rubber conical disc (901) is fixedly connected to the upper portion of the inner portion of the outer cover (602), the inner wall of the rubber conical disc (901) is in clearance fit with the terminal (5), and a notch (902) is machined in one side of the inner wall of the rubber conical disc (901).

6. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: an insulation mechanism (7) is arranged on the outer side of the insulation pipeline (1);

the insulation mechanism (7) comprises a limiting groove (701), a heat shrink tube (702), a groove (703), a single-hole umbrella group (704), a reverse cone ring (705), an insertion block (706) and an insertion groove (707);

the limiting groove (701) is processed on the outer wall of the insulating pipeline (1), a heat shrinkable tube (702) is arranged inside the limiting groove (701), the inner wall of the heat shrinkable tube (702) is abutted against the limiting groove (701), a groove (703) is arranged on the outer side of the heat shrinkable tube (702), the groove (703) is processed on the outer wall of the heat shrinkable tube (702), a single-hole umbrella group (704) is arranged inside the groove (703), the inner wall of the single-hole umbrella group (704) is abutted against the groove (703), a reverse conical ring (705) is arranged inside the single-hole umbrella group (704), the top of the reverse conical ring (705) is fixedly connected with the bottom of the single-hole umbrella group (704), a plurality of inserting blocks (706) are fixedly connected with the inner wall of the single-hole umbrella group (704), and the outer wall of the inserting blocks (706) is clamped with the inner wall of the groove (703) through inserting grooves (707).

7. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 1, wherein: a limiting mechanism (8) is arranged between the insulated pipeline (1) and the cable joint (3);

the limiting mechanism (8) comprises a top rod (801), a convex block (802), a second spring (803) and a taper sleeve (804);

ejector pin (801) and the outer wall below sliding connection of insulating line (1) and extend to the inside of wiring socket (2), the outer wall outside rigid coupling of ejector pin (801) has lug (802), second spring (803) are installed to the outer wall of ejector pin (801), the both ends of second spring (803) respectively with the inner and insulating line (1) fixed connection of lug (802), the outer end of ejector pin (801) is supported tightly and is had taper sleeve (804), the inner wall top of taper sleeve (804) and the outer wall threaded connection of insulating line (1).

8. A cryogenic insulation high temperature superconducting cable high voltage terminal according to claim 7, wherein: a plurality of the ejector rods (801) are distributed in an annular and equidistant mode, and the inner ends of the ejector rods (801) are frosted surfaces.

Technical Field

The invention relates to the technical field of low-temperature insulation high-temperature superconducting cable high-voltage terminals, in particular to a low-temperature insulation high-temperature superconducting cable high-voltage terminal.

Background

The cable terminal integrates water resistance, stress control, shielding and insulation, has good electrical performance and mechanical performance, can be used for a long time under various severe environmental conditions, has the advantages of light weight, convenience in installation and the like, and is widely applied to various fields such as electric power, petrochemical industry, metallurgy, railway ports and buildings.

When a low-temperature insulation high-temperature superconducting cable high-voltage terminal in the prior art is used, the high-voltage terminal cannot play a protection role after the terminal is connected, other people are easily touched by mistake, the protection effect on the terminal is poor, the outer wall connection part of a heat shrinkable tube and an insulating pipeline is easy to seep water, moisture or dust easily enters the inside of a single-hole umbrella group, the pollution on the surface is caused to form a conductive medium to influence the insulation strength, the heat shrinkable tube and the single-hole umbrella group cannot be disassembled and assembled, the use convenience is poor, meanwhile, a limiting fixing effect cannot be played on a cable joint, and the connection stability is further influenced.

Disclosure of Invention

The invention aims to provide a low-temperature insulation high-temperature superconducting cable high-voltage terminal, which aims to solve the problem that the low-temperature insulation high-temperature superconducting cable high-voltage terminal in the prior art cannot play a protection role after the terminal is connected when in use, and is easy to cause the mistaken touch of others.

In order to achieve the purpose, the invention provides the following technical scheme: a high-voltage terminal of a low-temperature insulation high-temperature superconducting cable comprises an insulation pipeline, wherein the top of the insulation pipeline is fixedly connected with an installation sleeve, and the outer side of the installation sleeve is provided with a protection mechanism;

the protection mechanism comprises a lantern ring, an outer cover, an inserted link, a baffle, a first spring, a deflector rod and a clamping groove;

the lantern ring cup joints in the outer wall of installation cover, the outer wall top rigid coupling of the lantern ring has the dustcoat, the both sides sliding connection of the lantern ring has the inserted bar, the outer end rigid coupling of inserted bar has the baffle, the outer wall of inserted bar has cup jointed first spring, the both ends of first spring respectively with baffle and lantern ring fixed connection, the inner of inserted bar passes through the draw-in groove and the outer wall looks joint of installation cover, the inner below of baffle supports tightly has the driving lever, the corner of driving lever rotates with the both ends of the lantern ring to be connected. The design can play the guard action to it after the terminal wiring like this, and can avoid other people to bump by mistake.

Preferably, the mounting sleeve is provided with a terminal, and the terminal is fixedly connected with the inner wall of the mounting sleeve.

Preferably, the bottom of the insulated pipeline is provided with a wiring socket.

Preferably, a cable connector is arranged inside the wiring socket, and the outer wall of the cable connector is inserted into the inner wall of the wiring socket.

Preferably, a blocking mechanism is arranged inside the outer cover;

the plugging mechanism comprises a rubber conical disc and a notch;

the outer wall rigid coupling of rubber conical disk is in the inside top of dustcoat, the inner wall and the terminal clearance fit of rubber conical disk, the processing of inner wall one side of rubber conical disk has the incision. The design can carry out the shutoff to the top of dustcoat like this, avoids in the rivers get into the dustcoat, further promotes the protection effect to the terminal.

Preferably, an insulation mechanism is arranged on the outer side of the insulation pipeline;

the insulation mechanism comprises a limiting groove, a heat shrink tube, a groove, a single-hole umbrella group, a reverse taper ring, an insertion block and an insertion groove;

the utility model discloses a spacing groove, including insulating pipeline, limiting groove, recess, single-hole umbrella crowd, slot and recess, the limiting groove is processed in insulating pipeline's outer wall, the inside of limiting groove is equipped with the pyrocondensation pipe, the inner wall and the limiting groove of pyrocondensation pipe offset tightly, the outside of pyrocondensation pipe is equipped with the recess, the recess is processed in the outer wall of pyrocondensation pipe, the inside of recess is equipped with single-hole umbrella crowd, the inner wall and the recess of single-hole umbrella crowd offset tightly, the inside of single-hole umbrella crowd is equipped with reverse cone ring, the top of reverse cone ring and the bottom fixed connection of single-hole umbrella crowd, the inner wall rigid coupling of single-hole umbrella crowd has a plurality of inserted blocks, the outer wall of inserted block passes through the inner wall joint of slot and recess. The design can be convenient for carry out the dismouting between pyrocondensation pipe and the haplopore cluster of umbrella like this, and the pyrocondensation pipe can be embedded in the spacing inslot, avoids the junction infiltration.

Preferably, a limiting mechanism is arranged between the insulated pipeline and the cable joint;

the limiting mechanism comprises an ejector rod, a convex block, a second spring and a taper sleeve;

the utility model discloses a wire connection socket, including ejector pin and insulating pipeline, the ejector pin is connected with insulating pipeline's outer wall below sliding and extends to the inside of wiring socket, the outer wall outside rigid coupling of ejector pin has the lug, the second spring is installed to the outer wall of ejector pin, the both ends of second spring respectively with the inner and the insulating pipeline fixed connection of lug, the outer end of ejector pin supports tightly has the taper sleeve, the inner wall top of taper sleeve and insulating pipeline's outer wall threaded connection. The design can play spacing fixed action to the cable joint like this, and then promotes connection stability.

Preferably, a plurality of ejector pins are distributed in an annular equidistant mode, and the inner ends of the ejector pins are frosted surfaces.

Compared with the prior art, the invention has the beneficial effects that: compared with the prior art, the low-temperature insulation high-temperature superconducting cable high-voltage terminal has the following advantages:

through the matching among the insulated pipeline, the wiring socket, the cable joint, the mounting sleeve, the terminal and the protection mechanism, when the device is used, the sleeve ring can slide in one direction on the outer wall of the mounting sleeve through the one-way clamping of the inserted rod and the clamping groove, and the inward force is given to the inserted rod by the first spring, and the sleeve ring can slide back and forth and reset by stirring the deflector rod, so that the protective effect is achieved on the terminal after wiring through the outer cover, and the mistaken collision of other people can be avoided;

through the matching among the insulated pipeline, the wiring socket, the cable joint, the mounting sleeve, the terminal and the plugging mechanism, when the device is used, the top of the outer cover can be plugged through the arrangement of the rubber conical disc and the notch, so that water flow is prevented from entering the outer cover, and the protection effect on the terminal is further improved;

through the matching between the insulating pipeline, the wiring socket, the cable joint, the mounting sleeve and the terminal and the insulating mechanism, when the device is used, the device can be connected with the heat shrinkable tube through the embedded connection of the limiting groove and the heat shrinkable tube, the water seepage at the joint of the heat shrinkable tube and the outer wall of the insulating pipeline can be avoided, and through the arrangement of the single-hole umbrella group and the reverse cone ring, the device can further prevent moisture or dust from entering the interior, further avoid the dirt on the surface from forming a conductive medium, ensure the insulating strength of the surface of an insulating material, and be connected with the slot through the clamping connection of the insertion block and the slot, so that the heat shrinkable tube and the single-hole umbrella group can be conveniently disassembled and assembled, and the use convenience is improved;

through the cooperation between insulating pipeline, wiring socket, cable joint, installation cover, terminal and the stop gear for the device is when using, the setting of accessible ejector pin to and the threaded connection of taper sleeve and insulating pipeline, make the taper sleeve up-and-down rotating can drive the ejector pin simultaneously and centripetally or the centrifugal slip, and then can connect to the cable and play spacing fixed action, and then promote connection stability.

Drawings

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

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the structure of the terminal, the notch and the housing of FIG. 2;

FIG. 4 is a schematic view of the housing, ring and first spring of FIG. 2;

FIG. 5 is a schematic view of the configuration of the single hole cluster, heat shrink tube and reverse cone ring of FIG. 2;

fig. 6 is a schematic structural view of the taper sleeve, the ejector rod and the second spring in fig. 2.

In the figure: 1. insulating pipeline, 2, wiring socket, 3, cable joint, 4, mounting sleeve, 5, terminal, 6, protection mechanism, 601, lantern ring, 602, dustcoat, 603, inserted bar, 604, baffle, 605, first spring, 606, driving lever, 607, draw-in groove, 7, insulating mechanism, 701, spacing groove, 702, pyrocondensation pipe, 703, recess, 704, single-hole umbrella group, 705, reverse taper ring, 706, inserted block, 707, slot, 8, spacing mechanism, 801, ejector pin, 802, lug, 803, second spring, 804, taper sleeve, 9, plugging mechanism, 901, rubber cone disc, 902, incision.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a low temperature insulation high temperature superconducting cable high voltage terminal, includes insulating pipeline 1, and insulating pipeline 1's top rigid coupling has installation cover 4, and installation cover 4 is provided with terminal 5, and terminal 5 is provided with wiring socket 2 with the inner wall fixed connection of installation cover 4, and insulating pipeline 1's bottom is provided with wiring socket 2, and wiring socket 2's inside is provided with cable joint 3, and cable joint 3's outer wall is pegged graft mutually with wiring socket 2's inner wall, and the outside of installation cover 4 is equipped with protection machanism 6.

The protection mechanism 6 comprises a lantern ring 601, an outer cover 602, an insert rod 603, a baffle 604, a first spring 605, a shift lever 606 and a clamping groove 607, the lantern ring 601 is sleeved on the outer wall of the mounting sleeve 4, the outer cover 602 is fixedly connected above the outer wall of the lantern ring 601, the insert rod 603 is connected with two sides of the lantern ring 601 in a sliding manner, the baffle 604 is fixedly connected with the outer end of the insert rod 603, the first spring 605 is sleeved on the outer wall of the insert rod 603, the first spring 605 provides inward force to the insert rod 603, two ends of the first spring 605 are respectively fixedly connected with the baffle 604 and the lantern ring 601, the inner end of the insert rod 603 is clamped with the outer wall of the mounting sleeve 4 through the clamping groove 607, the clamping groove 607 is longitudinally and equidistantly distributed and forms a one-way clamping structure with the insert rod 603, so that the circular ring 601 can slide upwards and can be locked when sliding downwards, the lower part of the inner end of the baffle 604 is tightly pressed with the shift lever 606, the two ends of the lantern ring 601 of the shift lever 606 are rotatably connected, and the design can play a protection role after the terminal is connected, and can avoid other people from mistakenly touching;

through the insulating pipeline, the wiring socket, the cable connects, the installation cover, the cooperation between terminal and the protection machanism for the device is when using, the one-way joint of accessible inserted bar and draw-in groove, and first spring gives the inward power of inserted bar, make the lantern ring can be at the outer wall one-way slip of installation cover, and can make the cover loop to slide to reset through stirring the driving lever, and then play the guard action to it after the terminal wiring through the dustcoat, and can avoid other people mistake to bump.

The plugging mechanism 9 is arranged in the outer cover 602, the plugging mechanism 9 comprises a rubber conical disc 901 and a notch 902, the outer wall of the rubber conical disc 901 is fixedly connected to the upper part of the inner part of the outer cover 602, the inner wall of the rubber conical disc 901 is in clearance fit with the terminal 5, and the notch 902 is processed on one side of the inner wall of the rubber conical disc 901, so that the top of the outer cover 602 can be plugged, water flow is prevented from entering the outer cover 602, and the protection effect on the terminal 5 is further improved;

through the cooperation between insulating pipeline, wiring socket, cable joint, installation cover, terminal and the shutoff mechanism for the device can carry out the shutoff to the top of dustcoat through rubber conical disc and notched setting when using, avoids in the rivers get into the dustcoat, further promotes the protection effect to the terminal.

The insulating mechanism 7 is arranged on the outer side of the insulating pipeline 1, the insulating mechanism 7 comprises a limiting groove 701, a heat shrinkable tube 702, a groove 703, a single-hole umbrella group 704, a reverse conical ring 705, an inserting block 706 and an inserting groove 707, the limiting groove 701 is processed on the outer wall of the insulating pipeline 1, the heat shrinkable tube 702 is arranged in the limiting groove 701, the inner wall of the heat shrinkable tube 702 is abutted against the limiting groove 701, the heat shrinkable tube 702 is embedded in the limiting groove 701, the groove 703 is arranged on the outer side of the heat shrinkable tube 702, the groove 703 is processed on the outer wall of the heat shrinkable tube 702, the single-hole umbrella group 704 is arranged in the groove 703, the single-hole umbrella group 704 and the groove 703 are longitudinally and equidistantly distributed, the inner wall of the single-hole umbrella group 704 is abutted against the groove 703, the reverse conical ring 705 is arranged in the single-hole umbrella group 704, the reverse conical ring 705 can further protect the single-hole umbrella group 704 to prevent water or dust from entering the interior, and the top of the reverse conical ring 705 is fixedly connected with the bottom of the single-hole umbrella group 704, the inner wall of the single-hole umbrella group 704 is fixedly connected with a plurality of inserting blocks 706, the outer walls of the inserting blocks 706 are clamped with the inner wall of the groove 703 through inserting grooves 707, the inserting blocks 706 and the inserting grooves 707 are made of rubber and are matched in shape, the heat-shrinkable tube 702 and the single-hole umbrella group 704 can be conveniently disassembled and assembled due to the design, the heat-shrinkable tube 702 can be embedded in the limiting groove 701, and water seepage at the connecting position is avoided;

through insulating pipeline, the wiring socket, the cable joint, the installation cover, cooperation between terminal and the insulating mechanism, make the device when using, the gomphosis of accessible spacing groove and pyrocondensation pipe is connected, can avoid the outer wall junction infiltration of pyrocondensation pipe and insulating pipeline, and through the setting of haplopore parachute kit and reverse cone ring, can further avoid getting into inside in moisture or the dust, and further avoid the filthy formation conducting medium on surface, guarantee the dielectric strength on insulating material surface, the joint through inserted block and slot links to each other, be convenient for carry out the dismouting between pyrocondensation pipe and the haplopore parachute kit, promote and use the convenience.

A limiting mechanism 8 is arranged between the insulated pipeline 1 and the cable joint 3, the limiting mechanism 8 comprises ejector rods 801, bumps 802, second springs 803 and taper sleeves 804, the ejector rods 801 are slidably connected with the lower portion of the outer wall of the insulated pipeline 1 and extend into the wiring socket 2, a plurality of ejector rods 801 are distributed in an annular and equidistant mode, the inner ends of the ejector rods 801 are frosted surfaces, the force for abutting and limiting the cable joint 3 can be improved, the bumps 802 are fixedly connected to the outer side of the outer wall of the ejector rods 801, the second springs 803 are mounted on the outer wall of the ejector rods 801, two ends of the second springs 803 are respectively fixedly connected with the inner ends of the bumps 802 and the insulated pipeline 1, the second springs 803 provide an outward force for the ejector rods 801, the taper sleeves 804 abut against the outer ends of the ejector rods 801, the taper sleeves 804 can be driven by up-and-down rotation of the taper sleeves 804 to drive the ejector rods 801 to simultaneously slide centripetally or centrifugally, the upper portions of the inner walls of the taper sleeves 804 are in threaded connection with the outer wall of the insulated pipeline 1, and the cable joint 3 can be limited and fixed, thereby improving the connection stability;

through the cooperation between insulating pipeline, wiring socket, cable joint, installation cover, terminal and the stop gear for the device is when using, the setting of accessible ejector pin to and the threaded connection of taper sleeve and insulating pipeline, make the taper sleeve up-and-down rotating can drive the ejector pin simultaneously and centripetally or the centrifugal slip, and then can connect to the cable and play spacing fixed action, and then promote connection stability.

The working principle of the embodiment is as follows: through the unidirectional clamping of the inserted link 603 and the clamping groove 607 and the inward force of the inserted link 603 given by the first spring 605, the lantern ring 601 can slide in one direction on the outer wall of the mounting sleeve 4, and the poking rod 605 can be poked to return the lantern ring 601 to slide and reset, so that the terminal can be protected after wiring through the outer cover 602, and can be prevented from being touched by others by mistake, meanwhile, through the arrangement of the rubber conical disc 901 and the notch 902, the top of the outer cover 602 can be sealed, water can be prevented from entering the outer cover 602, the protection effect on the terminal 5 is further improved, meanwhile, through the embedded connection of the limiting groove 701 and the heat shrink tube 702, water can be seeped at the connection part of the outer wall of the heat shrink tube 701 and the insulated pipeline 1, and through the arrangement of the single-hole umbrella group 704 and the reverse conical ring 705, the water or dust can be further prevented from entering the inside, and the pollution on the surface can be further prevented from forming a conductive medium, and the insulation strength of the surface of the insulated material can be ensured, the joint through inserted block 706 and slot 707 links to each other, is convenient for carry out the dismouting between pyrocondensation pipe 702 and the haplopore parachute kit 704, promotes and uses the convenience, simultaneously, through the setting of ejector pin 801 to and the threaded connection of taper sleeve 804 and insulated pipeline 1, make taper sleeve 804 up-and-down rotating can drive ejector pin 801 simultaneously and entad or centrifugal slip, and then can play spacing fixed action to cable joint 3, and then promote connection stability.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.