CN110492258B - Connecting bolts, cable connectors and high-voltage switchgear - Google Patents
Connecting bolts, cable connectors and high-voltage switchgear Download PDFInfo
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- CN110492258B CN110492258B CN201910744703.8A CN201910744703A CN110492258B CN 110492258 B CN110492258 B CN 110492258B CN 201910744703 A CN201910744703 A CN 201910744703A CN 110492258 B CN110492258 B CN 110492258B
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- external thread
- connecting bolt
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- steel
- split
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000010949 copper Substances 0.000 claims abstract description 94
- 229910052802 copper Inorganic materials 0.000 claims abstract description 94
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 125000003003 spiro group Chemical group 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/56—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The application relates to a connecting bolt, a cable connector and a high-voltage switch cabinet. The connecting bolt comprises a copper split body and a steel split body, wherein the copper split body is provided with a first external thread and a second external thread on the peripheral wall, the cross section of the copper split body is fan-shaped, the steel split body is spliced with the copper split body, the peripheral wall of the steel split body is provided with a third external thread and a fourth external thread, the third external thread is used for being connected with the first external thread when the steel split body is spliced with the copper split body, the first external thread and the third external thread form the first connecting thread together, the connecting bolt is composed of two structures of steel and copper, the structure form of a single material of the traditional connecting bolt is changed, the strength of the connecting bolt is considered, the overcurrent capacity of the connecting bolt is improved, the heating of the connecting bolt is reduced, and the problem that the connecting bolt heats seriously in the using process is solved.
Description
Technical Field
The application relates to the technical field of cable connection, in particular to a connecting bolt, a cable connector and a high-voltage switch cabinet.
Background
The cable connector of the traditional closed high-voltage switch cabinet comprises a straight-through type conductive rod, one end of the conductive rod extends into the cabinet body to be in conductive connection, and the other end of the conductive rod is provided with a common connecting bolt. One end of the connecting bolt is connected with the end part of the conductive rod, and the other end of the connecting bolt penetrates through the mounting hole of the binding post, so that the conductive rod is in conductive connection with the binding post, and the conductive rod is connected with an external cable through the binding post.
However, the connecting bolt of the traditional cable connector is made of stainless steel, the overcurrent capacity is poor, the connecting bolt is serious in heating in the use process, heat can be transferred to the insulating layer of the cable connector due to good heat conduction performance of metal, the insulating layer is aged, and the service life of the cable connector is reduced. If the connecting bolt made of pure copper is adopted, the overcurrent capacity can be greatly increased, the problem of heating of the bolt can be solved, but the strength of the connecting bolt is poor, and the cable connector is easy to loosen and deform.
Disclosure of Invention
Based on the above, it is necessary to provide a connecting bolt, a cable connector and a high-voltage switch cabinet aiming at the problems of low service life of the cable connector and easy loosening and deformation.
A connecting bolt, the connecting bolt being formed with first and second connecting threads on an outer wall thereof, the connecting bolt comprising:
the copper split body is provided with a first external thread and a second external thread on the peripheral wall, and the cross section of the copper split body is fan-shaped;
The steel split body is spliced with the copper split body, a third external thread and a fourth external thread are arranged on the peripheral wall of the steel split body, the third external thread is used for being spliced with the first external thread when the steel split body is spliced with the copper split body, so that the first external thread and the third external thread jointly form the first connecting thread, the fourth external thread is used for being spliced with the second external thread when the steel split body is spliced with the copper split body, so that the second external thread and the fourth external thread jointly form the second connecting thread, and the cross section of the steel split body is in a fan shape.
In one embodiment, the copper split is provided with a protrusion, the steel split is provided with a groove, and the protrusion is inserted into the groove to enable the copper split to be inserted into the steel split.
In one embodiment, the protrusion extends along the axial direction of the copper split, and the groove is formed along the axial direction of the steel split, so that the steel split can be quickly inserted into the copper split, and the inserted connecting bolts are not easy to separate from each other in the screwing assembly process.
In one embodiment, the cross section of the bulge is bent, so that the steel split body is reliably inserted into the copper split body, and when the connecting bolt rotates, the rotating plane of the connecting bolt is parallel to the cross section of the bulge, and the copper split body and the steel split body cannot be separated from each other due to the bent cross section of the bulge, so that the steel split body and the copper split body always keep synchronous rotation.
In one embodiment, the copper split and the steel split are both in a strip-shaped structure, so that the copper split and the steel split form a strip-shaped stud structure after being spliced.
In one embodiment, the first external thread and the second external thread are respectively disposed at two ends of the copper split, and the third external thread and the fourth external thread are respectively disposed at two ends of the steel split, so that a first connecting thread and a second connecting thread are respectively formed at two ends of the connecting stud after assembly.
In one embodiment, the copper split is provided with a first abutting table, the first abutting table is located between the first external thread and the second external thread, the steel split is provided with a second abutting table, the second abutting table is located between the third external thread and the fourth external thread, and the second abutting table corresponds to the first abutting table, so that the spliced and assembled connecting bolt is provided with a boss structure for abutting against the connecting terminal, the contact area of the connecting bolt and the connecting terminal is increased, and the overcurrent capacity of the connecting bolt is improved.
A cable connector comprising a connecting bolt as described in any one of the above embodiments.
In one embodiment, the cable connector further comprises a conductive rod, a binding post and a locking piece, wherein the conductive rod is provided with a first threaded hole, the first connecting thread is located in the first threaded hole and is in threaded connection with the conductive rod, the binding post is provided with a through hole, the connecting bolt penetrates through the through hole, the locking piece is provided with a second threaded hole, the second connecting thread is located in the second threaded hole and is in threaded connection with the locking piece, the connecting bolt penetrates through the binding post, and the connecting bolt is in threaded connection with the conductive rod and the locking piece respectively, so that the binding post is electrically connected to the conductive rod through the connecting bolt.
A high-voltage switch cabinet comprises a cabinet body and the cable connector.
According to the connecting bolt, the cable connector and the high-voltage switch cabinet, the first external thread and the second external thread are arranged on the peripheral wall of the copper split body, the third external thread and the fourth external thread are arranged on the peripheral wall of the steel split body, the steel split body is spliced with the copper split body, the third external thread is connected with the first external thread, the fourth external thread is connected with the second external thread, the first connecting thread and the second connecting thread are formed on the outer wall of the connecting bolt, the connecting bolt comprises the steel split body and the copper split body, the cross sections of the steel split body and the copper split body are all fan-shaped, the connecting bolt is composed of two structures of steel and copper, namely the structure of combining steel and copper is adopted, the structure of a single material of the traditional connecting bolt is changed, so that the strength of the connecting bolt is improved, the overcurrent capacity of the connecting bolt is improved, the heating problem of the connecting bolt in the using process is solved, the service life of the cable connector is prolonged, and the problem that the connecting bolt is easy to loosen due to the fact that the copper and the cable connector is made of pure copper is easy to deform is solved.
Drawings
FIG. 1 is a schematic diagram of a high voltage switchgear and cable connection according to an embodiment;
FIG. 2 is a partial schematic view of the high voltage switchgear of FIG. 1;
FIG. 3 is a schematic diagram of a cable connector and cable connection of the high voltage switchgear of FIG. 2;
FIG. 4 is an exploded view of the cable connector of FIG. 3;
FIG. 5 is a schematic view of a conductive rod of the cable connector of FIG. 4;
FIG. 6 is a schematic view of the conductive rod of FIG. 5 from another perspective;
FIG. 7 is a schematic view of a connecting bolt of the cable connector shown in FIG. 4;
FIG. 8 is an exploded view of the connecting bolt of FIG. 7;
FIG. 9 is a schematic view of a terminal of the cable connector shown in FIG. 4;
fig. 10 is a cross-sectional view of the terminal shown in fig. 9;
FIG. 11 is a schematic view of a locking element of the cable connector of FIG. 4;
fig. 12 is a schematic view of a nut of the cable connector of fig. 4.
Detailed Description
In order to facilitate an understanding of the present application, the connecting bolt, the cable connector and the high voltage switchgear will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the connecting bolt, the cable connector and the high-voltage switch cabinet are shown in the accompanying drawings. The connecting bolts, cable connectors, and high voltage switchgear may be implemented in many different forms and are not limited to the embodiments described herein. Rather, the purpose of these embodiments is to provide a more thorough and complete disclosure of the connection bolt, the cable connection head, and the high voltage switchgear.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the connection bolts, cable connectors, and high voltage switchgear is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The connecting bolt comprises a copper split body and a steel split body, wherein a first external thread and a second external thread are arranged on the peripheral wall of the copper split body, the cross section of the copper split body is in a fan shape, a third external thread and a fourth external thread are arranged on the peripheral wall of the steel split body in an inserting mode, the third external thread is used for being connected with the first external thread when the steel split body is inserted into the copper split body, so that the first external thread and the third external thread form the first connecting thread together, the fourth external thread is used for being connected with the second external thread when the steel split body is inserted into the copper split body, so that the second external thread and the fourth external thread form the second connecting thread together, and the cross section of the steel split body is in a fan shape.
As shown in fig. 1, a high voltage switchgear 10 of an embodiment includes a cabinet body 100 and a cable connector 200. Referring also to fig. 2, in one embodiment, the cable connector is electrically connected to the cabinet and the cable 20, respectively, such that the cable is electrically connected to the cabinet through the cable connector.
As shown in fig. 3 and 4, in one embodiment, the cable connector includes a connecting bolt 210. In one embodiment, the cable connector further includes a conductive rod 220 electrically connected to the cabinet. As shown in fig. 5 and 6, in one embodiment, the conductive rod is provided with a first threaded hole 221 to be screwed with a connection bolt. In one embodiment, the conductive rod is inserted into the cabinet and electrically connected with the cabinet, so that the conductive rod is electrically connected with the cabinet.
In one embodiment, the connecting bolt has first and second connecting threads formed on an outer wall thereof. As shown in fig. 7 and 8, the connecting bolt includes a copper body 213 and a copper body 215. The steel split is spliced with the copper split. In one embodiment, the copper split body is provided with a first external thread 213a and a second external thread 213b on the peripheral wall. The cross section of the copper split body is in a fan shape. The steel split peripheral wall is provided with a third external thread 215a and a fourth external thread 215b. The third external thread is used for being jointed with the first external thread when the steel split body and the copper split body are spliced, so that the first external thread and the third external thread jointly form the first connecting thread. In one embodiment, the fourth external thread is configured to engage with the second external thread when the steel split is plugged with the copper split such that the second external thread and the fourth external thread together comprise the second connection thread. The cross section of the steel split body is in a fan shape. In this embodiment, the cross section of the copper split is a cross section perpendicular to the axial direction of the copper split, and the cross section of the steel split is a cross section perpendicular to the axial direction of the steel split.
The first external thread and the second external thread are arranged on the peripheral wall of the copper split, the third external thread and the fourth external thread are arranged on the peripheral wall of the steel split, the steel split is spliced with the copper split, the third external thread is jointed with the first external thread, and the fourth external thread is jointed with the second external thread, so that the first connecting thread and the second connecting thread are formed on the outer wall of the connecting bolt. The connecting bolt comprises two parts of steel split bodies and copper split bodies, and the cross sections of the steel split bodies and the copper split bodies are fan-shaped, so that the connecting bolt is composed of two structures made of steel and copper, namely, the structure of combining steel and copper is adopted, the structural form of a single material of the traditional connecting bolt is changed, the strength of the connecting bolt is improved, the overcurrent capacity of the connecting bolt is improved, the heating of the connecting bolt is reduced, the problem that the connecting bolt heats seriously in the using process is solved, the service life of a cable connector is prolonged, and the problem that the cable connector is easy to loosen and deform due to the fact that the connecting bolt is made of pure copper is also avoided.
As shown in fig. 7 and 8, in order to insert the copper body with the steel body, in one embodiment, the copper body is provided with a protrusion 213c. The steel split is provided with a groove 215c, and the bulge is inserted into the groove to enable the copper split to be spliced with the steel split. In this embodiment, the protrusion is disposed on a surface of the copper body adjacent to the steel body, and the groove is formed on a surface of the steel body adjacent to the copper body. It will be appreciated that in other embodiments, the location of the protrusion is not limited to being located on the side of the copper body adjacent to the steel body, and correspondingly, the location of the recess is not limited to being located on the side of the steel body adjacent to the copper body.
In one embodiment, the protrusions comprise a first protrusion and a second protrusion, and the first protrusion and the second protrusion are symmetrically arranged on one surface of the copper split body adjacent to the steel split body. The groove comprises a first groove and a second groove, the first protrusion is inserted into the first groove, and the second protrusion is inserted into the second groove, so that the copper split body and the steel split body are more reliably inserted.
As shown in fig. 8, in order to enable the steel component to be quickly plugged into the copper component, and the plugged connection bolts are not easy to separate from each other in the process of screwing and assembling, in one embodiment, the protrusions 213c extend along the axial direction of the copper component, and the grooves are formed along the axial direction of the steel component, so that the steel component can be quickly plugged into the copper component, and the plugged connection bolts are not easy to separate from each other in the process of screwing and assembling.
In one embodiment, as shown in fig. 8, the cross section of the protrusion 213c is bent, so that the steel split body is reliably inserted into the copper split body. When the connecting bolt rotates, the rotating plane of the connecting bolt is parallel to the cross section of the bulge, and the copper split and the steel split cannot be separated from each other because the cross section of the bulge is in a bent shape, so that the steel split and the copper split always keep synchronous rotation. In this embodiment, the cross section of the protrusion is L-shaped, and correspondingly, the cross section of the groove is L-shaped. When the copper split and the steel split are required to be assembled or disassembled, the copper split and the steel split are mutually spliced or separated along the axial direction of the copper split and the axial direction of the steel split. When the connecting bolt is in threaded connection rotation, the protrusions and the grooves are not separated from each other, so that the copper split body and the steel split body are reliably spliced. In this embodiment, the cross section of the protrusion is a cross section perpendicular to the extending direction of the protrusion. The cross-sectional direction of the cross-section of the groove and the cross-sectional direction of the cross-section of the protrusion are mutually parallel. In this embodiment, the cross sections of the first protrusion and the second protrusion are both in a bending shape, and the bending directions of the first protrusion and the second protrusion are opposite, so that the problem that the copper split and the steel split are separated from each other in the rotation process of the connecting bolt is completely avoided, and the copper split and the steel split are better spliced.
It will be appreciated that the copper split is not limited to being provided with protrusions. The steel split is not limited to being provided with grooves, namely the positions of the protrusions and the grooves can be interchanged. In other embodiments, the copper split is provided with a groove, the steel split is provided with a protrusion, and the protrusion is inserted into the groove to enable the copper split to be inserted into the steel split.
As shown in fig. 4, in one embodiment, the cable connector further includes a connection terminal 230 and a locking member 240. In one embodiment, the first connection thread is located within the first threaded bore and is threadedly connected to the conductive rod. As shown in fig. 9 and 10, the terminal is provided with a through hole 231, and the connecting bolt is inserted into the through hole, so that the connecting bolt is inserted into the terminal. As shown in fig. 11, the locking member is provided with a second threaded hole 241, and the second connecting thread is located in the second threaded hole and is in threaded connection with the locking member. The connecting bolt is respectively in threaded connection with the conductive rod and the anti-loose piece, so that the wiring terminal is electrically connected to the conductive rod through the connecting bolt.
Referring also to fig. 7, the connecting bolt includes a first threaded portion 210a and a second threaded portion 210c. The first connecting screw thread is formed at the first screw joint portion, and the second connecting screw thread is formed at the second screw joint portion. In this embodiment, the first screw connection portion is located in the first threaded hole and is in threaded connection with the conductive rod. The second screw connection part is arranged in the through hole in a penetrating way. The second threaded connection part is positioned in the second threaded hole and is in threaded connection with the anti-loosening element, so that the connecting bolt is in threaded connection with the conductive rod and the anti-loosening element respectively, and meanwhile, the conductive rod is electrically connected to the cable sequentially through the connecting bolt and the wiring terminal. In this embodiment, the first threaded portion and the second threaded portion are two end portions of the connecting bolt, respectively. The locking piece is abutted to one side, away from the connecting bolt, of the connecting terminal. The wiring terminal is used for being electrically connected with the cable. The connecting bolt penetrates through the wiring terminal, and the connecting bolt is in threaded connection with the conductive rod and the locking piece respectively, so that the wiring terminal is electrically connected to the conductive rod through the connecting bolt.
Because the both ends of butt portion are connected with first spiro union portion and second spiro union portion respectively, first spiro union portion is located first screw hole and with conductive rod threaded connection, the through-hole is worn to locate by the second spiro union portion, and second spiro union portion is located second screw hole and with locking piece threaded connection, and binding post is connected with the cable electricity, make connecting bolt respectively with conductive rod and locking piece threaded connection, make conductive rod pass through connecting bolt and binding post electricity in proper order simultaneously and be connected to the cable. The cable is electrically connected to the cabinet body because the conductive rod is electrically connected with the cabinet body.
Referring again to fig. 7, in one embodiment, the connecting bolt further includes an abutment portion 210b, both ends of which are connected with the first and second screw portions, respectively. In this embodiment, the abutment portion is located between the first and second threaded portions. In one embodiment, the abutment is provided with a first abutment surface and a second abutment surface connected. As shown in fig. 10, the connection terminal is further provided with a positioning cavity 233 communicated with the through hole, and the first abutting surface is located in the through hole and abuts against the connection terminal. The second abutting surface is positioned in the positioning cavity and abuts against the wiring terminal.
In one embodiment, an included angle exists between the first abutting surface and the second abutting surface, namely the first abutting surface and the second abutting surface are not coplanar, so that the contact area between the wiring terminal and the conductive rod is larger, and meanwhile, the wiring terminal is not easy to incline during installation, the problem that the poor contact easily exists due to the fact that the conductive contact surface between the wiring terminal of the traditional cable connector and the conductive rod is only a circular ring is solved, and therefore the service life of the cable connector is prolonged. In this embodiment, the cross sections of the through hole and the positioning cavity are both circular. As shown in fig. 7, the cross sections of the first abutting surface 211 and the second abutting surface 212 are respectively circular, and the diameter of the first abutting surface is smaller than that of the second abutting surface, so that the inclination of the wiring terminal during installation can be prevented better.
The first abutting surface is positioned in the through hole and is abutted with the wiring terminal, the positioning cavity communicated with the through hole is formed in the wiring terminal, the second abutting surface is positioned in the positioning cavity and is abutted with the wiring terminal, so that the connecting bolt is abutted with the wiring terminal through the first abutting surface and the second abutting surface, and an included angle exists between the first abutting surface and the second abutting surface, namely the first abutting surface and the second abutting surface are not coplanar, the contact area of the connecting bolt and the wiring terminal is larger, the problem of poor contact between the wiring terminal and the conductive rod is solved, and the service life of the cable connector is prolonged.
In order to improve the overcurrent capability of the cable connector, in one embodiment, the second abutting surface is a conical inclined surface. The positioning cavity is of a cavity structure matched with the conical inclined surface, namely, the inner wall of the positioning cavity is provided with a conical fit surface matched with the second abutting surface, so that the second abutting surface is in close contact with the inner wall of the positioning cavity, the hidden danger that the cable connector is inclined relatively between the connecting terminal and the connecting bolt in the installation process is effectively avoided, the contact area of the connecting terminal and the connecting bolt is increased, and the overcurrent capacity of the cable connector is improved. In this embodiment, the second contact surface is of a frustum-shaped contour structure, so that the second contact surface and the positioning cavity better contact in a centered manner.
In order to improve the overcurrent capability of the cable connector, in one embodiment, the conical inclined surface is arranged at the end part of the abutting part adjacent to the second threaded part. When connecting bolt wears to locate in the trepanning, first butt face and second butt face can the while butt in binding post's inner wall, have improved cable connector's overflow ability. In one embodiment, the diameter of the cross section of the conical inclined surface gradually decreases in the direction away from the conductive rod, so that the condition that the wiring terminal is mounted on the connecting bolt and swings can be prevented better.
In order to accurately align and abut the second abutting surface with the inner wall of the positioning cavity, and simultaneously, the abutting area of the second abutting surface and the inner wall of the positioning cavity is larger, in one embodiment, the angle of the conical inclined surface is 45-85 degrees, so that the second abutting surface is accurately aligned and abutted with the inner wall of the positioning cavity, and simultaneously, the abutting area of the second abutting surface and the inner wall of the positioning cavity is larger. In this embodiment, the angle of the tapered inclined plane is 60 °, so that the contact area between the second contact surface and the inner wall of the positioning cavity is larger and the installation performance of preventing tilting is better.
As shown in fig. 12, to improve the overcurrent capability of the connecting bolt, in one embodiment, the cable connector further includes a nut 250, which is sleeved on the second threaded portion and is in threaded connection with the second threaded portion. Referring to fig. 10, the binding post is further provided with a receiving cavity 234 communicated with the through hole, and the nut is located in the receiving cavity and abuts against the binding post, so that the binding post is in close contact with the nut, and the binding post can be electrically connected with the connecting bolt through the nut, so that the overcurrent capacity of the connecting bolt is improved. In this embodiment, the accommodation chamber is formed at an end face of the terminal adjacent to the locking piece. The screw cap is axially provided with a threaded hole 252 in threaded connection with the second threaded portion, so that the screw cap is sleeved on the second threaded portion and is in threaded connection with the second threaded portion, and the screw cap has good strength. In other embodiments, the threaded bore may not be limited to being open in the axial direction of the nut.
In one embodiment, as shown in fig. 12, the outer wall of the nut is provided with a spherical convex surface 253. Referring to fig. 10, the inner wall of the accommodating cavity is formed with a spherical concave 234a adapted to the spherical convex, so that the contact area between the nut and the inner wall of the accommodating cavity is larger, the contact between the connecting terminal and the nut is tighter, the contact area between the connecting terminal and the connecting bolt is increased, and the overcurrent capacity of the cable connector is enhanced. In this embodiment, the spherical convex surface is disposed at one end of the nut, so that the spherical convex surface better abuts against the inner wall of the accommodating cavity. In one embodiment, the outer wall of the nut is provided with a tightening part, so that the nut is screwed to the second screw part by screwing the tightening part by means of a tool. In this embodiment, the tightening part is of an outer hexagonal prism structure so as to be screwed by a wrench. In other embodiments, the tightening portion may also be a hexagon socket or a splined hole. In this embodiment, the spherical concave surface is a concave arc-shaped inner cavity structure. The spherical convex surface is of a convex arc-shaped fitting surface structure, so that the spherical convex surface is in close contact with the spherical concave surface.
In one embodiment, the area and the thickness of the through hole position are increased, the conical inner cavity is arranged at the inlet of the through hole of the wiring terminal, the conical fit surface matched with the conical inner cavity is arranged on the conductive bolt, and when the conductive bolt is connected, the conical fit surface of the conductive bolt is in close contact with the conical inner cavity on the through hole of the wiring terminal, so that the hidden danger that the wiring terminal inclines relative to the conductive bolt in the installation process can be effectively avoided, the contact area of the wiring terminal and the conductive bolt can be increased, and the overcurrent capacity is enhanced. In addition, the exit of binding post through-hole sets up concave arc inner chamber, adds the protruding arc nut of a cooperation concave arc inner chamber on the electric screw bolt, and in the through-hole of binding post was arranged in to protruding arc nut, and protruding arc fit face and the concave arc inner chamber in close contact of binding post mounting hole exit of protruding arc nut, further increased binding post and electric screw bolt's area of contact, improved the overcurrent capacity of cable connector.
As shown in fig. 11, in one embodiment, the end of the locking element adjacent to the terminal is provided with a first one-way non-return bevel gear 242. Referring to fig. 9, the end of the connection terminal adjacent to the locking piece is provided with a second unidirectional non-return helical gear ring 235. The first one-way non-return inclined gear ring is abutted with the second one-way non-return inclined gear ring.
When the locking piece rotates relative to the second threaded connection part towards the direction approaching the wiring terminal, the first one-way non-return inclined gear ring and the second one-way non-return inclined gear ring slide relatively. When the anti-loose piece rotates relative to the second threaded connection part in a direction away from the wiring terminal, the first unidirectional anti-back inclined gear ring and the second unidirectional anti-back inclined gear ring are mutually clamped, so that the anti-loose piece can only rotate in a direction close to the wiring terminal, even if the anti-loose piece can only rotate in a direction locking the wiring terminal, the anti-loose piece is effectively prevented from being loosened, and the wiring terminal is reliably connected to the connecting bolt. In the embodiment, the contact surfaces of the locking piece and the wiring terminal are respectively provided with the matched unidirectional non-return oblique gear rings, so that the unidirectional rotation stopping effect is realized. Specifically, when the anti-loosening member is rotated forward in the screwing direction, the one-way anti-loosening ring gear does not restrict rotation of the anti-loosening member. When the anti-loose piece reversely rotates in the unscrewing direction, the unidirectional non-return helical gear ring limits the rotation of the anti-loose piece, so that the anti-loose piece can be prevented from loosening when being used for a long time or vibrated.
In one embodiment, the first one-way non-return bevel gear ring is disposed around the second threaded bore. The second one-way non-return inclined gear ring is arranged around the through hole, so that the first one-way non-return inclined gear ring and the second one-way non-return inclined gear ring are better in abutting contact.
As shown in fig. 11, in one embodiment, the first one-way non-return bevel gear ring is convexly provided with a plurality of bevel teeth 242a, which are spaced apart along the circumferential direction of the second screw hole. Each helical tooth is provided with a first inclined plane. In one embodiment, the second one-way non-return helical gear defines a plurality of helical grooves 235a. In this embodiment, the inner wall of each inclined tooth slot is provided with a second inclined plane, and the inclination angle of the second inclined plane is 3-8 degrees. The second inclined plane of each inclined tooth is in fit and contact with the corresponding first inclined plane, so that the first unidirectional non-return inclined gear ring is in contact with the second unidirectional non-return inclined gear ring.
As shown in fig. 4, in one embodiment, the cable connector further includes a plug 260, and the plug is provided with a third threaded hole 262. The second threaded portion is at least partially located in the third threaded hole and is in threaded connection with the plug. The plug is abutted with the anti-loose piece, so that the plug limits the anti-loose piece on the second threaded portion, and the anti-loose piece is prevented from being loosened. In this embodiment, the plug is an insulating plug, so that the plug has insulation. In one embodiment, the plug is abutted against the end of the locking piece, which is far away from the connecting terminal, so that the plug is better abutted against the locking piece. In the embodiment, the plug is an insulating plug, so that the plug has insulativity, and the plug is abutted against one side of the locking piece, which is far away from the wiring terminal, so that the situation that the locking piece is directly touched in the use process to cause electric shock is avoided.
As shown in fig. 2, in one embodiment, the cable connector further includes a protective sleeve 270, which is respectively wrapped on the outer walls of the connection terminal and the conductive rod, so that the connection terminal and the conductive rod are located in the protective sleeve, and the risk of electric shock caused by direct contact of a user with the connection terminal and the conductive rod in the use process is avoided. In this embodiment, part of the protective sleeve is also coated at the connection position of the connecting terminal and the cable and on the cable, so that the use safety of the cable connector is improved.
In one embodiment, the cable connector further comprises a plug and a protective sleeve. The plug is an insulating plug. The plug is provided with a third threaded hole. The second threaded portion is at least partially located in the third threaded hole and is in threaded connection with the plug. The plug is abutted with the anti-loose piece, so that the plug limits the anti-loose piece on the second threaded portion, and the anti-loose piece is prevented from being loosened. The lag wraps the outer walls of binding post, conductor bar and end cap respectively, makes binding post and conductor bar be located the lag, avoids the user to directly touch binding post and conductor bar in the use and has the risk of electric shock. The protective sleeve and the plug are arranged on the cable connector together, so that the wiring terminal, the conductive rod and the connecting bolt are prevented from being directly exposed, and the use safety of the cable connector is improved.
In one embodiment, the first external thread and the second external thread are respectively disposed at two ends of the copper split body. In one embodiment, the third external thread and the fourth external thread are respectively disposed at two ends of the steel split body, so that a first connecting thread and a second connecting thread are respectively formed at two ends of the assembled connecting stud.
In one embodiment, the copper split and the steel split are both in strip-shaped structures, so that the connecting bolt forms a strip-shaped stud structure after the copper split and the steel split are spliced. In the present embodiment, the first connecting screw thread and the second connecting screw thread are formed at both axial end portions of the connecting bolt, respectively.
In this embodiment, the conductive bolt is a combination of one-quarter copper split and three-quarter steel split. In other embodiments, a combination mode of a half copper split and a half steel split, or a combination mode of a three-quarter copper split and a four-half steel split, or other proportion combination modes can be adopted according to actual needs.
In one embodiment, the copper split is provided with a first abutment located between the first external thread and the second external thread. The steel components of a whole that can function independently is equipped with the second butt platform, the second butt platform is located the third external screw thread with between the fourth external screw thread, the second butt platform with first butt platform corresponds, makes the connecting bolt after the grafting equipment be formed with the boss structure that is used for with binding post butt to increase connecting bolt and binding post's area of contact, improved connecting bolt's overflow ability. In this embodiment, the first abutment table and the second abutment table together form an abutment portion of the connecting bolt.
In one embodiment, the number of the connecting bolts of the cable connectors is two, and the conductive rods are respectively and electrically connected with the two connecting bolts, so that the conductive rods are respectively and electrically connected with the corresponding cables through the two connecting bolts, and the conductive rods can be simultaneously and electrically connected with the two cables, and each cable connector can be simultaneously and electrically connected with the two cables.
In one embodiment, as shown in fig. 5, the conductive rod is T-shaped such that the first end 220a of the conductive rod is electrically connected to the cabinet, the second end 220b is electrically connected to one of the cables, and the third end 220c is electrically connected to the other cable. The connecting line of the second end and the third end is perpendicular to the extending direction of the first end. In this embodiment, the second end and the third end have the same structure and are connected to the corresponding connecting bolts by means of threaded connection. In one embodiment, the conductive bars are electrically connected to the cabinet and the two connecting bolts, respectively.
As shown in fig. 5, in one embodiment, the conductive rod includes an insertion portion 222, a connection portion 223, a socket portion 224, and a conductive body 225. The insertion part is inserted into the cabinet body and is electrically connected with the cabinet body. The connecting part is connected with the inserting part, and the inserting part and the connecting part are coaxially arranged, so that the structure of the conductive rod is simpler and the conductive rod is easy to manufacture and process.
In one embodiment, as shown in fig. 5, the connection portion is connected to the cabinet so that the conductive rod is connected to the cabinet. The sleeve joint part is connected with the end part of the connecting part, which is far away from the inserting part. The axial direction of the sleeving part is perpendicular to the axial direction of the connecting part. A sleeve hole 224a is formed in the axial direction of the sleeve joint part. The conductive main body penetrates through the sleeve hole and is connected with the sleeve joint part, and two ends of the conductive main body are respectively and electrically connected with the two connecting bolts. In this embodiment, two ends of the conductive body are respectively screwed with corresponding connecting bolts, so that two ends of the conductive body are respectively electrically connected with the two connecting bolts. In one embodiment, the two ends of the conductive main body are respectively provided with a first threaded hole, so that the two ends of the conductive main body can be respectively in threaded connection with the corresponding connecting bolts.
In one embodiment, the area of the cross section of the conductive main body decreases from the axial end part to the middle position, and the sleeving part is sleeved at the middle position of the conductive main body. Because the sleeve joint part is sleeved at the middle position of the conductive main body, the sleeve joint part is connected at the middle position of the conductive main body, the weight of the conductive main body is gradually decreased from the axial end part to the middle position, and the bending strength of the conductive main body is improved. In this embodiment, the axial direction of the conductive body is perpendicular to the cross-sectional direction of the cross-section. The conductive body extends in an axial direction from one axial end to the other axial end. The intermediate position of the conductive body is located at an intermediate position where the conductive body extends in the axial direction. The cross-sectional shape of any cross-section of the conductive body is circular, and the cross-sectional areas of both axial ends of the conductive body are smaller than the cross-sectional area of the middle position of the conductive body.
The connecting part is connected with the inserting part and the sleeving part respectively, and the connecting part and the inserting part are coaxially arranged, so that the sleeving part is connected with the inserting part through the connecting part, and the inserting part is spliced in the cabinet body and is electrically connected with the cabinet body, so that the sleeving part is sequentially connected onto the cabinet body through the connecting part and the inserting part, and the sleeving part is electrically connected with the cabinet body. Because the sleeve hole is formed in the axial direction of the sleeving part, the conductive main body penetrates through the sleeve hole and is connected with the sleeving part, so that the conductive main body is installed along the axial direction of the sleeving part, and the axial direction of the sleeving part is mutually perpendicular to the axial direction of the connecting part, so that the conductive main body is installed at the sleeving part and occupies smaller space in the depth direction of the cable connector, and the bending moment of the cable connector after the conductive main body is connected with the connecting bolt is smaller, so that the cable connector is not easy to deform or even damage. Because the both ends of electrically conductive main part are connected with two connecting bolt electricity respectively, make electrically conductive main part can be connected with two connecting bolt electricity simultaneously to be connected to corresponding binding post through two connecting bolt, thereby make the cable connection head can be connected with two binding post simultaneously, in order to be connected to two different cables simultaneously electricity. The cable connector changes the defect that the traditional cable connector can only be connected with the conductive rod in series along the connection direction of the conductive rod and the cabinet body, and solves the problem of poor electrical connection contact of the cable.
In order to reliably connect the conductive body to the socket, in one embodiment, the outer wall of the conductive body is formed with a first mounting thread. The inner wall of the trepanning is provided with a second mounting thread matched with the first mounting thread, so that the conductive main body is in threaded connection with the sleeving part, and the conductive main body is reliably connected with the sleeving part.
It will be appreciated that in other embodiments, the conductive body is not limited to being threadably attached to the inner wall of the socket. In one embodiment, the conductive body is clamped on the inner wall of the sleeve hole, so that the conductive body and the sleeve part can be clamped and disassembled quickly. Of course, to securely connect the conductive body to the socket, in one embodiment, the conductive body is also welded to the socket, so that the conductive body and socket are securely connected together.
In order to make the insertion part better insert into the cabinet body and facilitate the insertion part to be centered and inserted into the cabinet body, in one embodiment, the insertion part is of a frustum structure, so that the insertion part is better inserted into the cabinet body and facilitates the insertion part to be centered and inserted into the cabinet body.
In one embodiment, the end portion of each conductive body is provided with a first threaded hole, and the first threaded hole is used for being in threaded connection with the corresponding connecting bolt, so that the end portion of each conductive body is firmly connected with the corresponding connecting bolt. In this embodiment, the first threaded hole is a first threaded hole. In one embodiment, the two ends of the conductive main body are respectively provided with a first threaded hole, so that the two ends of the conductive main body can be respectively in threaded connection with the corresponding connecting bolts.
As shown in fig. 5 and 6, in one embodiment, the conductive body includes a conductive housing 225a, a first core 225b, and a second core 225c. The conductive shell penetrates through the sleeve hole and is connected with the sleeve joint part. A first accommodating cavity 2252 and a second accommodating cavity 2253 are respectively provided at both ends of the conductive housing. The first core is positioned in the first accommodating cavity and connected with the conductive shell. The second core is positioned in the second accommodating cavity and connected with the conductive shell, so that the conductive shell is electrically connected with the first core and the second core respectively. The first core body and the second core body are used for being respectively and electrically connected with the two connecting bolts, namely, the first core body is electrically connected with one connecting bolt, the second core body is electrically connected with the other connecting bolt, the conductive shell is respectively and electrically connected with the two connecting bolts, and therefore two ends of the conductive main body are respectively and electrically connected with the two connecting bolts. In this embodiment, the first threaded hole is formed in both the first core and the second core. In this embodiment, the first screw hole has been seted up to the one end that deviates from the second core of first core, and the first screw hole has been seted up to the one end that deviates from the first core of second core, makes first core and second core respectively with corresponding connecting bolt spiro union.
In one embodiment, the first receiving cavity communicates with the second receiving cavity, resulting in a lighter weight conductive housing. In order to improve the connection strength of the conductive shell, in one embodiment, a plurality of reinforcing ribs are arranged on the inner wall of the conductive shell, so that the conductive shell has better connection strength. In this embodiment, the plurality of reinforcing ribs are distributed at intervals along the circumferential direction of the conductive housing, so that the connection strength of each position of the conductive housing is relatively uniform.
In one embodiment, the conductive housing is detachably connected to the first core and the second core, respectively. When the first core body needs to be maintained or replaced, the first core body can be detached from the conductive shell, and similarly, when the second core body needs to be maintained or replaced, the second core body can be detached from the conductive shell, so that the convenience in use of the conductive rod is improved. Because the first core body and the second core body can be independently disassembled and replaced, the problem that the cost is high due to the integral replacement of the conductive shell is avoided. In this embodiment, the conductive shell is connected to the first core and the second core in a plug-in manner. In one embodiment, the conductive housing is provided with a first slot and a second slot, the first slot is communicated with the first accommodating cavity, and the second slot is communicated with the second accommodating cavity. The first core body is positioned in the first accommodating cavity and inserted into the first slot, so that the conductive shell body is connected with the first core body in a plug-in mode. The second core body is positioned in the second accommodating cavity and inserted into the second slot, so that the conductive shell body is connected with the second core body in a plug-in mode.
It will be appreciated that in other embodiments, the conductive housing is not limited to being removably connected to the first and second cores, respectively. In one embodiment, the conductive housing is threaded with the first core and the second core, respectively, so that the first core and the second core are both reliably connected in the conductive housing.
As shown in fig. 6, in one embodiment, the high-voltage switch cabinet further includes a locking member (not shown), the connecting portion is provided with a connecting hole 223a, the cabinet body is provided with a fixing hole, and the locking member is respectively disposed in the connecting hole and the fixing hole in a penetrating manner, so that the connecting portion is fixedly connected to the cabinet body through the locking member.
In order to enable the high-voltage switch cabinet to be electrically connected to a plurality of different cables at the same time, the space of the cabinet body is fully utilized, in one embodiment, the number of the cable connectors is multiple, each cable connector is arranged on the cabinet body in a staggered manner, so that the high-voltage switch cabinet can be electrically connected to a plurality of different cables at the same time, and the space of the cabinet body is fully utilized.
Compared with the traditional cable connector, the cable connector has the following advantages:
1) The utility model discloses a cable connector's conductor stick adopts T type structure, and the cabinet body inside of high tension switchgear is connected to the one end of conductor stick, and a binding post is connected respectively at both ends in addition to realize one and advance two, a cable connector can connect two binding posts simultaneously promptly, and can not influence cable connector's structural stability, also can not increase its occupation space in the depth direction.
2) The structure of the connecting bolt and the connecting terminal is changed, the contact area is increased, and the inclination of the connecting terminal during installation is prevented. The area and the thickness of binding post through-hole one end are increased, set up the toper inner chamber at the entrance of binding post through-hole, set up the toper faying face of cooperation toper inner chamber on the connecting bolt, during the connection, the toper faying face of connecting bolt and the toper inner chamber in close contact on the binding post through-hole can effectively stop the hidden danger that binding post takes place the slope relative to connecting bolt in the installation, and can increase binding post and connecting bolt's area of contact, reinforcing overcurrent capacity. In addition, the exit of binding post through-hole sets up concave arc inner chamber, adds the protruding arc nut of a cooperation concave arc inner chamber on the connecting bolt, and in the through-hole of binding post was arranged in to protruding arc nut, and protruding arc fit face and the concave arc inner chamber in close contact of binding post through-hole exit of protruding arc nut, can further increase binding post and connecting bolt's area of contact, strengthen the overflow ability of cable connector.
3) And (5) changing the material of the connecting bolt. The connecting bolt adopts the mode that copper and stainless steel combine together, when taking into account connecting bolt intensity, has increased connecting bolt's overflow ability, reduces and generates heat.
4) The contact surfaces of the locking piece and the wiring terminal are respectively provided with a matched one-way non-return oblique gear ring. When the anti-loose piece rotates forward in the screwing direction, the unidirectional anti-backflow oblique gear ring can not limit the rotation of the anti-loose piece, and when the anti-loose piece rotates reversely in the unscrewing direction, the unidirectional anti-backflow oblique gear ring can limit the rotation of the anti-loose piece, so that the anti-loose piece can be prevented from loosening when being used for a long time or vibrated.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (10)
1. A connecting bolt, the connecting bolt is formed with first connecting screw thread and second connecting screw thread on the outer wall, its characterized in that, connecting bolt includes:
the copper split body is provided with a first external thread and a second external thread on the peripheral wall, and the cross section of the copper split body is fan-shaped;
The steel split body is spliced with the copper split body, a third external thread and a fourth external thread are arranged on the peripheral wall of the steel split body, the third external thread is used for being spliced with the first external thread when the steel split body is spliced with the copper split body, so that the first external thread and the third external thread jointly form the first connecting thread, the fourth external thread is used for being spliced with the second external thread when the steel split body is spliced with the copper split body, so that the second external thread and the fourth external thread jointly form the second connecting thread, and the cross section of the steel split body is in a fan shape;
The copper split is provided with a first abutting table, the first abutting table is located between the first external thread and the second external thread, the steel split is provided with a second abutting table, the second abutting table is located between the third external thread and the fourth external thread, the second abutting table corresponds to the first abutting table, and a boss structure for abutting against a wiring terminal is formed on a connecting bolt after splicing and assembling.
2. The connecting bolt according to claim 1, wherein the copper body is provided with a protrusion, the steel body is provided with a groove, and the protrusion is inserted into the groove.
3. The connecting bolt according to claim 2, wherein the protrusion extends in the axial direction of the copper body, and the groove is opened in the axial direction of the steel body.
4. A connecting bolt according to claim 3, wherein the cross section of the boss is curved.
5. The connecting bolt according to any one of claims 1 to 4, wherein the copper body and the steel body are each of an elongated structure.
6. The connecting bolt according to any one of claims 1 to 4, wherein the first external thread and the second external thread are provided at both ends of the copper body, respectively, and the third external thread and the fourth external thread are provided at both ends of the steel body, respectively.
7. The connecting bolt according to claim 1, wherein the first abutment and the second abutment together form an abutment portion of the connecting bolt, the abutment portion being provided with a first abutment surface and a second abutment surface connected to each other, an included angle being present between the first abutment surface and the second abutment surface.
8. A cable connector comprising a connecting bolt according to any one of claims 1 to 7.
9. The cable connector of claim 8, further comprising a conductive rod, a connecting terminal, and a locking member, wherein the conductive rod is provided with a first threaded hole, the first connecting thread is located in the first threaded hole and is in threaded connection with the conductive rod, the connecting terminal is provided with a through hole, the connecting bolt is arranged in the through hole in a penetrating manner, the locking member is provided with a second threaded hole, and the second connecting thread is located in the second threaded hole and is in threaded connection with the locking member.
10. A high voltage switchgear comprising a cabinet body and a cable connection head according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744703.8A CN110492258B (en) | 2019-08-13 | 2019-08-13 | Connecting bolts, cable connectors and high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744703.8A CN110492258B (en) | 2019-08-13 | 2019-08-13 | Connecting bolts, cable connectors and high-voltage switchgear |
Publications (2)
| Publication Number | Publication Date |
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| CN110492258A CN110492258A (en) | 2019-11-22 |
| CN110492258B true CN110492258B (en) | 2025-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910744703.8A Active CN110492258B (en) | 2019-08-13 | 2019-08-13 | Connecting bolts, cable connectors and high-voltage switchgear |
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| CN (1) | CN110492258B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228818A (en) * | 1991-06-10 | 1993-07-20 | Charles E. Laue Trust | Fastener system for male and female threaded members |
| CN207261402U (en) * | 2017-09-14 | 2018-04-20 | 杭州安泊厨具有限公司 | It is a kind of from pre-buried blind hole bolt pair |
| CN108598828A (en) * | 2018-05-18 | 2018-09-28 | 绍兴文理学院元培学院 | A kind of paired cable T connects formula installation method |
| CN210326171U (en) * | 2019-08-13 | 2020-04-14 | 广州供电局有限公司 | Connecting bolt, cable connector and high-voltage switch cabinet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6031368A (en) * | 1996-09-12 | 2000-02-29 | S&C Electric Company | Sensing apparatus for cable termination devices in power distribution systems |
| CN206582218U (en) * | 2017-03-13 | 2017-10-24 | 苏州嘉翔展示道具有限公司 | A kind of fastening bolt |
-
2019
- 2019-08-13 CN CN201910744703.8A patent/CN110492258B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228818A (en) * | 1991-06-10 | 1993-07-20 | Charles E. Laue Trust | Fastener system for male and female threaded members |
| CN207261402U (en) * | 2017-09-14 | 2018-04-20 | 杭州安泊厨具有限公司 | It is a kind of from pre-buried blind hole bolt pair |
| CN108598828A (en) * | 2018-05-18 | 2018-09-28 | 绍兴文理学院元培学院 | A kind of paired cable T connects formula installation method |
| CN210326171U (en) * | 2019-08-13 | 2020-04-14 | 广州供电局有限公司 | Connecting bolt, cable connector and high-voltage switch cabinet |
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| CN110492258A (en) | 2019-11-22 |
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