CN107359573B - Pipe nut connecting fitting - Google Patents
Pipe nut connecting fitting Download PDFInfo
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- CN107359573B CN107359573B CN201710697254.7A CN201710697254A CN107359573B CN 107359573 B CN107359573 B CN 107359573B CN 201710697254 A CN201710697254 A CN 201710697254A CN 107359573 B CN107359573 B CN 107359573B
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- pipe
- support frame
- smoothing reactor
- female
- semi
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
Abstract
The invention discloses a pipe bus connecting fitting, relates to the technical field of electric power fittings, and is used for reducing the safety risk of the pipe bus connecting fitting when a bus and a smoothing reactor are connected and improving the connection stability of the pipe bus connecting fitting. The pipe bus connecting fitting comprises a shielding ring and a current-carrying conductor which are sequentially sleeved on the outer wall of the pipe bus, and a supporting part arranged at the pipe orifice of the pipe bus; the supporting part is fixedly connected with the wiring board of the smoothing reactor through the combined supporting frame, and the current-carrying conductor is electrically connected with the wiring board of the smoothing reactor through a connecting wire. The pipe bus connecting fitting is used for connecting a pipe bus and a smoothing reactor.
Description
Technical Field
The invention relates to the technical field of electric power fittings, in particular to a pipe bus connecting fitting.
Background
A converter station is one of important components of a direct current transmission project, and in a direct current field of the converter station, a large number of pipe bus connection fittings for connecting a pipe bus and a smoothing reactor exist.
Currently, as shown in fig. 1, a female connection fitting for connecting a female and a smoothing reactor includes a female support 11 for supporting and fixing a female 10, and a female T-connection fitting 12 connected to a pipe orifice of the female 10, the female T-connection fitting 12 being further connected to a terminal block 14 of the smoothing reactor through a plurality of connection wires 13, respectively; wherein, the female support 11 is provided with a shielding ring 15, and the plurality of connecting wires 13 are isolated by wire spacing bars 16.
However, since the connecting wire 13 is generally a flexible wire, when the connection length of the connecting wire 13 is too long, the connecting wire 13 is easy to swing and deform under the action of wind swing, and the distance to the ground cannot be ensured, so that potential safety hazards are left for the use of the female connection fitting.
Moreover, along with the increase of the outer diameter size of the connecting wire 13 and the increase of the number of the connecting wires 13, the dead weight, the ice coating weight and the wind force born in the horizontal direction of the connecting wire 13 are greatly increased, so that the bus-bar T-joint fitting 12 and the wiring board 14 positioned at the two ends of the connecting wire 13 are required to bear large tensile force, and the bus-bar T-joint fitting 12 is easily disconnected with the pipe orifice of the bus-bar 10, or the connecting wire 13 is disconnected with the wiring board 14, and the connection between the bus-bar 10 and the smoothing reactor is invalid, thereby affecting the safe operation of the direct-current transmission engineering.
Disclosure of Invention
The invention aims to provide a pipe bus connecting fitting, which is used for reducing the safety risk of the pipe bus connecting fitting when a bus and a smoothing reactor are connected and improving the connection stability of the pipe bus connecting fitting.
In order to achieve the above object, the present invention provides the following technical solutions:
a pipe bus connecting fitting comprises a shielding ring, a current-carrying conductor and a supporting part, wherein the shielding ring and the current-carrying conductor are sequentially sleeved on the outer wall of a pipe bus; the supporting part is fixedly connected with the wiring board of the smoothing reactor through the combined supporting frame, and the current-carrying conductor is electrically connected with the wiring board of the smoothing reactor through a connecting wire.
Compared with the prior art, the tubular bus connecting fitting provided by the invention has the following beneficial effects:
in the pipe bus connecting fitting provided by the invention, the supporting part is arranged at the pipe orifice of the pipe bus and is fixedly connected with the wiring board of the smoothing reactor through the combined supporting frame, so that the pipe bus is fixedly connected with the wiring board of the smoothing reactor; the current-carrying conductor is sleeved on the outer wall of the pipe nut, and the current-carrying conductor is electrically connected with the wiring board of the smoothing reactor through a connecting wire, so that the pipe nut is electrically connected with the wiring board of the smoothing reactor. The tubular bus connecting fitting provided by the invention adopts two parallel connections, one of which is a fixed connection formed by the supporting part and the combined supporting frame, and the other is a conductive connection formed by the current-carrying conductor and the connecting wire, so that the supporting part and the combined supporting frame in the fixed connection are used for bearing the connecting tension between the tubular bus and the wiring board of the smoothing reactor, the connecting wire in the conductive connection does not need to bear larger connecting tension, the situation that the conductive connection between the tubular bus and the wiring board of the smoothing reactor fails can be prevented, and stable and effective current transmission can be carried out between the tubular bus and the wiring board of the smoothing reactor, thereby ensuring the safe operation of direct-current transmission engineering. And because the connection pulling force between the pipe bus and the wiring board of the smoothing reactor is dispersedly born by the supporting part and the combined supporting frame in the fixed connection, the mechanical strength and the anti-seismic performance of the pipe bus connecting fitting are enhanced, and the connection stability of the pipe bus connecting fitting is improved.
In addition, because pass through supporting part and combination support frame fixed connection between the wiring board of tub of female and smoothing reactor for tub of female mouth of pipe to smoothing reactor's wiring board is fixed, and the current-carrying conductor is also fixed to tub of female mouth of pipe's distance, the wiring length of connecting wire can be according to the current-carrying conductor to tub of mouth of pipe distance and tub of female mouth of pipe is accurate to smoothing reactor's wiring board's distance confirm like this, avoid appearing the situation of connecting wire overlength, and under the auxiliary support of supporting part and combination support frame, can ensure that connecting wire can not swing the deformation because of wind pendulum effect, thereby ensure that connecting wire's ground distance keeps stable, be favorable to reducing tub of female link fitting and be at the safety risk when connecting tub of female smoothing reactor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic structural diagram of a pipe bus connection fitting in the prior art;
fig. 2 is a schematic structural diagram of a female connection fitting according to an embodiment of the present invention;
fig. 3 is a connection schematic diagram of a female connection fitting according to an embodiment of the present invention;
fig. 4 is a second connection schematic diagram of the female connection fitting provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a combined support frame according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a shielding ring according to an embodiment of the present invention.
Reference numerals:
10-pipe nut, 11-pipe nut support,
12-tube bus T-joint fitting, 13-connecting lead,
14-terminal blocks, 15-shield rings,
16-conductor spacer, 20-smoothing reactor,
30-current carrying conductors, 40-supports,
41-a tube nut supporting seat, 42-a tube nut pressing cover,
50-combined supporting frame, 51-first supporting frame,
52-a second supporting frame, 53-a pin shaft,
54-a limit bolt, 55-a shock-absorbing gasket,
150-fixing sleeve, 151-supporting rib,
152-shield ring body.
Detailed Description
In order to facilitate understanding, the pipe bus connection fitting provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 2-4, the pipe bus connection fitting provided by the embodiment of the invention includes a shielding ring 15 and a current-carrying conductor 30 which are sequentially sleeved on the outer wall of a pipe bus 10, and a supporting portion 40 arranged at the pipe orifice of the pipe bus 10; the supporting portion 40 is fixedly connected to the terminal block 14 of the smoothing reactor 20 through the combined supporting frame 50, and the current-carrying conductor 30 is electrically connected to the terminal block 14 of the smoothing reactor 20 through the connecting wire 13.
In the female connection fitting provided in the above embodiment, the wiring board 14 of the smoothing reactor 20 may be integrally provided with the case of the smoothing reactor 20, or may be in a split structure, that is, the wiring board 14 is independently provided, and the wiring board 14 is installed in the smoothing reactor 20 by a fastener. When the wiring board 14 of the smoothing reactor 20 is independently provided, the wiring board 14 may employ a sheet metal member provided with a plurality of mounting holes; at this time, the female connection fitting provided in the present embodiment may be preassembled in an assembly factory, that is, the combined support frame 50 is fixedly installed on the wiring board 14 and the support portion 40, respectively, and the connection wires 13 are fixedly installed on the wiring board 14 and the current carrying conductor 30, respectively; then, in the direct current field of the converter station, the shielding ring 15 and the current-carrying conductor 30 are sequentially sleeved on the outer wall of the pipe bus 10, the supporting part 40 is installed at the pipe orifice of the pipe bus 10, and the wiring board 14 is fixedly installed in the smoothing reactor 20, so that the connection of the pipe bus connecting fitting to the pipe bus 10 and the smoothing reactor 20 can be completed. Therefore, the tubular bus connecting fitting provided by the embodiment is compact in structure, small in occupied space, capable of being preassembled in an assembly plant, and then directly installed and used on a construction site, so that construction staff can conveniently perform on-site construction operation, and the efficiency of the construction operation can be effectively improved.
According to the pipe bus connecting fitting provided by the embodiment of the invention, the supporting part 40 is arranged at the pipe orifice of the pipe bus 10, and the supporting part 40 is fixedly connected with the wiring board 14 of the smoothing reactor 20 through the combined supporting frame 50, so that the pipe bus 10 is fixedly connected with the wiring board 14 of the smoothing reactor 20; and the current-carrying conductor 30 is sleeved on the outer wall of the pipe nut 10, and the current-carrying conductor 30 is electrically connected with the wiring board 14 of the smoothing reactor 20 through the connecting wire 13, so that the pipe nut 10 is electrically connected with the wiring board 14 of the smoothing reactor 20. Because the pipe bus connecting fitting adopts two parallel connections, one of which is a fixed connection formed by the supporting part 40 and the combined supporting frame 50, and the other is a conductive connection formed by the current-carrying conductor 30 and the connecting wire 13, the pipe bus connecting fitting has the functions of supporting and carrying current, and thus, the supporting part 40 and the combined supporting frame 50 in the fixed connection are utilized to bear the connecting tension between the pipe bus 10 and the wiring board 14 of the smoothing reactor 20, the connecting wire 13 in the conductive connection does not need to bear larger connecting tension, the situation that the conductive connection between the pipe bus 10 and the wiring board 14 of the smoothing reactor 20 fails can be prevented, and stable and effective current transmission can be carried out between the pipe bus 10 and the wiring board 14 of the smoothing reactor 20, thereby ensuring the safe operation of the direct current transmission engineering.
Moreover, because the connection tension between the pipe nut 10 and the wiring board 14 of the smoothing reactor 20 is mainly borne by the supporting part 40 and the combined supporting frame 50 in the fixed connection in a dispersed way, the mechanical strength and the anti-seismic performance of the pipe nut connection fitting are enhanced, and the connection stability of the pipe nut connection fitting is improved.
In addition, since the pipe nut 10 is fixedly connected with the wiring board 14 of the smoothing reactor 20 through the supporting part 40 and the combined supporting frame 50, the distance from the pipe orifice of the pipe nut 10 to the wiring board 14 of the smoothing reactor 20 is fixed, and the distance from the current carrying conductor 30 to the pipe orifice of the pipe nut 10 is also fixed, so that the wiring length of the connecting wire 13 can be accurately determined according to the distance from the current carrying conductor 30 to the pipe orifice of the pipe nut 10 and the distance from the pipe orifice of the pipe nut 10 to the wiring board 14 of the smoothing reactor 20, the overlong situation of the connecting wire 13 is avoided, and under the auxiliary support of the supporting part 40 and the combined supporting frame 50, the connecting wire 13 can be ensured not to swing and deform due to the wind swing effect, the ground distance of the connecting wire 13 is ensured to be kept stable, and the safety risk of the pipe nut connecting fitting in the process of connecting the pipe nut 10 and the smoothing reactor 20 is facilitated to be reduced.
It should be noted that the supporting portion 40 is used for supporting and fixing the tubular nut 10 and the combined supporting frame 50, and the structure thereof can be implemented in various manners. In this embodiment, please continue to refer to fig. 2, the supporting portion 40 adopts a split structure formed by buckling the female supporting seat 41 and the female gland 42, which is convenient for installing and fixing the supporting portion 40 at the pipe orifice of the female pipe 10.
Illustratively, the female support 41 includes a base plate disposed parallel to the cross-section of the nozzle of the female 40, and a semi-annular sidewall disposed on a surface of the base plate facing the nozzle of the female 10; and the pipe female gland 42 adopts a semi-annular gland; wherein, the liquid crystal display device comprises a liquid crystal display device,
the base plate adopts a circular plate structure, the outer diameter of the base plate is slightly larger than that of the pipe orifice of the pipe nut 10, and the base plate can seal the pipe orifice of the pipe nut 10;
the inner wall of the semi-annular side wall and the inner wall of the semi-annular gland are respectively attached to the outer wall of the pipe orifice of the pipe nut 10, and the semi-annular gland and the semi-annular side wall are buckled and installed on the pipe orifice of the pipe nut 10 through bolt fasteners; and the combined supporting frame 50 is arranged on the surface of the base plate facing away from the pipe orifice of the pipe nut 10.
The female link fitting of pipe that this embodiment provided, with the inner wall of semi-ring side wall and the laminating of semi-ring gland's inner wall with the female 10 orificial outer wall of pipe respectively, increased the area of contact of supporting part 40 and the female 10 orificial of pipe, after using the bolt fastener to install semi-ring gland and semi-ring side wall butt joint at the female 10 orificial of pipe, can increase the static friction between supporting part 40 and the female 10 orificial of pipe, ensure that supporting part 40 and the female 10 orificial firm connection of pipe to reinforcing the female link fitting of pipe's mechanical strength.
In order to improve the stress state of the support portion 10 and the combined support frame 50 in the female connection fitting, please refer to fig. 2 and 5, in the above embodiment, the combined support frame 50 includes a first support frame 51 and a second support frame 52, wherein the first support frame 51 is fixedly connected with the surface of the female support seat 41 facing away from the pipe orifice of the female 10, the second support frame 52 is fixedly connected with the terminal board 14 of the smoothing reactor, and the first support frame 51 is hinged with the second support frame 52. The combined support frame 50 is formed by hinging a first support frame 51 and a second support frame 52, the first support frame 51 is fixedly connected with the pipe bus 10, the second support frame 52 is fixedly connected with the wiring board 14 of the smoothing reactor 20, that is to say, the pipe bus 10 can swing relative to the wiring board 14 of the smoothing reactor 20, and the installation error between the pipe bus 10 and the smoothing reactor 20 is moderately adjusted, so that the bending moment effect born by the combined support frame 50 due to the installation error is reduced, the stress state of the support part 10 and the combined support frame 50 in the pipe bus connecting fitting is improved, the safety factor of the pipe bus connecting fitting is improved, and the service life of the pipe bus connecting fitting is prolonged.
It should be added that, the range of adjustment for the installation error between the pipe bus 10 and the smoothing reactor 20 is limited by utilizing the hinge connection of the first support frame 51 and the second support frame 52, and in order to increase the adjustment range of the installation error between the pipe bus 10 and the smoothing reactor 20, the second support frame 52 can slide relative to the first support frame 51 on the basis of the above embodiment, so that the installation error in the vertical direction between the pipe bus 10 and the smoothing reactor 20 can be adjusted by utilizing the rotation of the second support frame 52 relative to the first support frame 51, and the installation error in the horizontal direction between the pipe bus 10 and the smoothing reactor 20 can be adjusted by utilizing the sliding of the second support frame 52 relative to the first support frame 51, thereby increasing the adjustment range of the installation error between the pipe bus 10 and the smoothing reactor 20, further improving the safety factor of the pipe bus connection fitting, and prolonging the service life of the pipe bus connection fitting.
On the basis that the second support frame 52 is hinged with the first support frame 51, the second support frame 52 can slide relative to the first support frame 51, and various implementation manners are possible. This example shows a specific implementation as shown in fig. 5. With continued reference to fig. 5, on the basis of the above embodiment, the first support frame 51 is provided with a pin shaft mounting hole, a pin shaft 53 is disposed in the pin shaft mounting hole, the pin shaft 53 passes through the second support frame 52, the second support frame 52 can slide along the axial direction of the pin shaft 53, and a limiting latch 54 for limiting the limiting sliding travel of the second support frame 52 is inserted on the pin shaft 53.
In particular, the pin 53 may be fixedly mounted in the pin mounting hole or may be pivotally mounted in the pin mounting hole. The pin shaft 53 passes through the second supporting frame 52, and the second supporting frame 52 is provided with a transition hole, and the pin shaft 53 passes through the transition hole and is in clearance fit with the transition hole, so that the second supporting frame 52 can rotate around the pin shaft 53 and also can slide along the axial direction relative to the pin shaft 53; in order to avoid the second support frame 52 slipping off the pin 53 and ensure that the sliding of the second support frame 52 relative to the pin 53 is in a controllable range, a limiting latch 54 is inserted on the pin 53, so as to limit the limiting sliding travel of the second support frame 52. The above-mentioned limited sliding travel refers to the maximum displacement of the second supporting member 52 that can slide along the pin 53, that is, the maximum adjustable error that can be adjusted by sliding the second supporting member 52 relative to the first supporting member 51, and the horizontal installation error between the pipe nut 10 and the smoothing reactor 20.
For example, please continue to refer to fig. 5, in the above embodiment, the first supporting frame 51 includes a first fixed substrate fixedly connected to the surface of the tube mother supporting seat 41 facing away from the tube orifice of the tube mother 10, and two cantilever supports symmetrically disposed on two sides of the center line of the first fixed substrate, wherein the two cantilever supports are disposed on the surface of the first fixed substrate facing away from the tube mother supporting seat 41, and the hanging ends of the two cantilever supports are respectively provided with a pin shaft mounting hole. The second supporting frame 52 comprises a second fixed substrate fixedly connected with the wiring board 14 of the smoothing reactor, and two cantilever brackets symmetrically arranged on two sides of the center line of the second fixed substrate, wherein the two cantilever brackets are arranged on the surface of the second fixed substrate, which is opposite to the wiring board 14, and the suspension ends of the two cantilever brackets are respectively provided with a transition hole. The distance between the two cantilever brackets in the first support frame 51 is greater than the distance between the two cantilever brackets in the second support frame 52, the two cantilever brackets in the second support frame 52 are positioned between the two cantilever brackets in the first support frame 51, two pin shaft mounting holes in the first support frame 51 and two transitional Kong Tongyi axes in the second support frame 52 are arranged, and two ends of a pin shaft 53 respectively pass through corresponding transitional holes in the second support frame 52 and are mounted in corresponding pin shaft mounting holes in the first support frame 51; the plugging position of the limiting plug 54 on the pin shaft 53 is located between the two cantilever brackets in the second supporting frame 52.
In this embodiment, the first support frame 51 and the second support frame 52 both adopt symmetrical structures, and two ends of the pin 53 are respectively installed in pin installation holes of two cantilever brackets in the first support frame 51, which is beneficial to improving the connection stability of the first support frame 51 and the second support frame 52 and enhancing the mechanical strength of the combined support frame.
In addition, if the protruding lengths of the two cantilever brackets in the first support frame 51 or the protruding lengths of the two cantilever brackets in the second support frame 52 are long, a reinforcing rib or a reinforcing plate may be provided between the two cantilever brackets to further enhance the mechanical strength of the combined support frame.
In order to improve the anti-seismic performance of the female connection fitting under the wind swing effect, please continue to refer to fig. 5, in the above embodiment, a damping washer 55 is disposed between the pin 53 and the pin mounting hole. The cushion ring 55 is preferably made of polytetrafluoroethylene material with electrical insulation performance and excellent aging resistance, and the cushion ring 55 may be in a stepped ring structure, a small ring part of the cushion ring 55 is positioned in the pin shaft mounting hole, a large ring part of the cushion ring 55 is positioned between the first support frame 51 and the second support frame 52, and the pin shaft 53 is mounted in the ring hole of the cushion ring 55. Under the action of the wind pendulum, when the second support frame 52 and the pin shaft 53 perform relative motion, part of acting force transmitted to the first support frame 51 by the pin shaft 53 can be absorbed and eliminated by utilizing the damping washer 55, and part of impact force of the second support frame 52 to the first support frame 51 can be absorbed and eliminated, so that the anti-seismic performance of the pipe bus connecting fitting under the action of the wind pendulum is improved.
As can be appreciated, referring to fig. 3 and 4, the current-carrying conductor 30 is electrically connected to the parent metal 10, and depending on the surface contact between the current-carrying conductor 30 and the parent metal 10, in order to ensure stable and effective current transmission of the current-carrying conductor 30, in the above embodiment, the current-carrying conductor 30 is a ring-shaped metal conductor, and the metal material of the ring-shaped metal conductor may be conductive metal, such as copper or aluminum; the annular metal conductor is specifically formed by two semi-annular metal conductors in a split mode, construction personnel can conveniently operate and install the annular metal conductor, the two semi-annular metal conductors are installed on the outer wall of the pipe nut 10 in a buckling mode through bolt fasteners, the current-carrying conductor 30 can be tightly attached to the outer wall of the pipe nut 10 by means of fastening force of the bolt fasteners, and stable and effective transmission of current from the pipe nut 10 to the current-carrying conductor 30 is achieved. Each semi-annular metal conductor is electrically connected with the wiring board 14 of the smoothing reactor 20 through a corresponding connecting wire 13, and the current transmitted by the pipe nut 10 can be shunted to the wiring board 14 of the smoothing reactor 20 by utilizing the conductive connecting line formed by the current-carrying conductor 30 and the connecting line 13.
It should be noted that, for the connecting wires 13 correspondingly connected to each of the above semi-annular metal conductors, the number of the connecting wires is not particularly limited in this embodiment, and may be set by a person skilled in the art according to the voltage level of the current transmitted by the busbar 10, the magnitude of the current, and the current requirement of the smoothing reactor 20.
It should be noted that, with continued reference to fig. 2 and 6, in the above embodiment, the shielding ring 15 includes a fixing sleeve 150 sleeved on the outer wall of the pipe nut 10, and a shielding ring body 152 fixedly connected to the fixing sleeve 150 through a supporting rib 151. In this embodiment, the shielding ring 15 is sleeved on the outer wall of the pipe nut 10, so that the surface field intensity of the current-carrying body 30 and the connecting wire 13 in the conductive connection can be controlled by using the shielding ring 15, and the corona onset voltage of the conductive connecting line formed by the current-carrying body 30 and the connecting wire 13 is improved, thereby improving the corona resistance and the radio interference resistance of the conductive connecting line and reducing noise.
Illustratively, the retaining sleeve 150 is a snap-on collar secured using a bolt fastener. The shielding ring body 152 is fixed on the fixing sleeve 150 by using the supporting ribs 151, and the number and the setting positions of the supporting ribs 151 can be set by a person skilled in the art, and in this embodiment, an even number of supporting ribs 151 are arranged on the periphery of the fixing sleeve 150 in an indexing manner.
For easy installation and maintenance of the shielding ring 15, the shielding ring body 152 adopts a split ring structure, that is, a gap is formed in the ring structure of the shielding ring body 152, and enough installation and maintenance space is reserved for fastening the fixing sleeve 150 in the shielding ring 15 on the outer wall of the pipe nut 10 by utilizing the gap, so that construction work of constructors is facilitated. It can be understood that the setting position of the opening should correspond to the bolt fastening hole position in the fixing sleeve 150, and the size of the opening should be set according to the actual requirement of the fixing sleeve 150 for installation and maintenance.
It should be noted that, with continued reference to fig. 2 and 3, in the above embodiment, the connection wire 13 may be soldered to the current-carrying conductor 30, and/or the connection wire 13 may be soldered to the terminal block 14 of the smoothing reactor 20; in other words, the connecting wire 13 may be fixed by welding one end and detachably connecting the other end, or may be fixed by welding both ends. The connecting wire 13 is fixed on the current-carrying conductor 30 and/or the wiring board 14 of the smoothing reactor 20 in a welding mode, so that the connection stability of the connecting wire 13 can be enhanced, the connecting wire 13 has stable current-carrying performance, the situation that the connecting wire 13 carries current and heats is difficult to occur, and stable and effective current transmission between the busbar 10 and the wiring board 14 of the smoothing reactor 20 is ensured.
Illustratively, in the present embodiment, one end of the connecting wire 13 is soldered to the current-carrying conductor 30, and the other end is soldered to the terminal plate 14 of the smoothing reactor 20. In specific implementation, the current-carrying conductor 30 and the wiring board 14 of the smoothing reactor 20 are respectively provided with a soldering hole, and two ends of the connecting wire 13 are respectively soldered in the corresponding soldering holes.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The pipe bus connecting fitting is characterized by comprising a shielding ring, a current-carrying conductor and a supporting part, wherein the shielding ring and the current-carrying conductor are sequentially sleeved on the outer wall of a pipe bus; wherein, the liquid crystal display device comprises a liquid crystal display device,
the supporting part is fixedly connected with the wiring board of the smoothing reactor through the combined supporting frame, and the current-carrying conductor is electrically connected with the wiring board of the smoothing reactor through a connecting wire;
the combined support frame comprises a first support frame and a second support frame; the first support frame is fixedly connected with the surface of the support part, which is opposite to the pipe orifice of the pipe bus, and the second support frame is fixedly connected with the wiring board of the smoothing reactor;
the first support frame is hinged with the second support frame and can slide relatively;
the shielding ring comprises a fixed sleeve sleeved on the outer wall of the pipe nut and a shielding ring body fixedly connected with the fixed sleeve through a supporting rib; wherein, the shielding ring body is the split ring structure.
2. The female connection fitting of claim 1, wherein the support portion comprises a female support seat and a female gland; the pipe nut supporting seat comprises a base plate and a semi-annular side wall, wherein the base plate is arranged in parallel with the cross section of the pipe nut pipe opening, and the semi-annular side wall is arranged on the surface of the base plate facing the pipe nut pipe opening; the tubular female gland is a semi-annular gland; wherein, the liquid crystal display device comprises a liquid crystal display device,
the inner wall of the semi-annular side wall and the inner wall of the semi-annular gland are respectively attached to the outer wall of the pipe orifice of the pipe, and the semi-annular gland and the semi-annular side wall are oppositely buckled and installed on the pipe orifice of the pipe through bolt fasteners;
the combined support frame is arranged on the surface of the base plate, which is opposite to the pipe orifice of the pipe nut.
3. The female connection fitting of claim 2, wherein the first support bracket is fixedly connected to a surface of the female support seat facing away from the female nozzle.
4. The female connection fitting of claim 3, wherein the first support frame is provided with a pin shaft mounting hole, and a pin shaft is arranged in the pin shaft mounting hole;
the pin shaft passes through the second support frame, the second support frame can slide along the axial direction of the pin shaft, and a limiting bolt for limiting the limiting sliding stroke of the second support frame is inserted on the pin shaft.
5. The female connection fitting of claim 4, wherein a shock washer is disposed between the pin and the pin mounting hole.
6. The female connection fitting of claim 1, wherein the current carrying conductor is an annular metal conductor; the annular metal conductors are formed by two semi-annular metal conductors in a split mode, and the two semi-annular metal conductors are installed on the outer wall of the pipe nut in a buckling mode through bolt fasteners;
each semi-annular metal conductor is electrically connected with the wiring board of the smoothing reactor through a corresponding connecting wire.
7. The female connection fitting of claim 1, wherein the connection wire is soldered to the current carrying conductor; and/or the connecting wire is welded with a wiring board of the smoothing reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697254.7A CN107359573B (en) | 2017-08-15 | 2017-08-15 | Pipe nut connecting fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697254.7A CN107359573B (en) | 2017-08-15 | 2017-08-15 | Pipe nut connecting fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359573A CN107359573A (en) | 2017-11-17 |
| CN107359573B true CN107359573B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710697254.7A Active CN107359573B (en) | 2017-08-15 | 2017-08-15 | Pipe nut connecting fitting |
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| CN (1) | CN107359573B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108493981B (en) * | 2018-04-18 | 2024-03-12 | 中国电力工程顾问集团西南电力设计院有限公司 | Double-joint connecting structure between converter transformer and converter valve |
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2017
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| JP2001351705A (en) * | 2000-06-08 | 2001-12-21 | Yazaki Corp | Connecting structure for flat wire harness |
| KR20100008025A (en) * | 2008-07-15 | 2010-01-25 | 엘에스전선 주식회사 | Variable bus duct connecting structure |
| CN104577920A (en) * | 2015-01-12 | 2015-04-29 | 国家电网公司 | 800 kV convertor station direct-current field polar line smoothing reactor terminal connecting ironware |
| CN106207908A (en) * | 2016-08-23 | 2016-12-07 | 国家电网公司 | Pipe mother supports two-way gold utensil and shading ring, shielding spherical crown |
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