CN211556174U - Fastening-free terminal for power transformation - Google Patents
Fastening-free terminal for power transformation Download PDFInfo
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- CN211556174U CN211556174U CN202020252779.7U CN202020252779U CN211556174U CN 211556174 U CN211556174 U CN 211556174U CN 202020252779 U CN202020252779 U CN 202020252779U CN 211556174 U CN211556174 U CN 211556174U
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Abstract
The utility model discloses a transformer fastening-free terminal, including the terminal fixed area who locates the bottom, locate the wiring fixed area above the terminal fixed area, the wiring fixed area includes crimping lever, crimping spring and inlet wire groove, two crimping springs symmetry locate above the inlet wire groove, shell fragment side incision is "mouth" type, crimping lever locates above the crimping spring, the conductor connection piece passes the shell fragment incision and is fixed in the draw-in groove that the terminal block body forms together with the crimping spring, the wiring fixed area links to each other with the wiring fixed area through the conductor connection piece; the middle part of the wiring fixing area is provided with a terminal short-connection area which is arranged above the conductor connecting sheet and separates the crimping levers at the two ends from the crimping spring, and the middle part of the conductor connecting sheet is provided with a connecting sheet fastening hole. The utility model discloses simple structure, control simple and efficient, short consuming time of disconnect line, suitability are strong, are convenient for extensively popularize and apply.
Description
Technical Field
The utility model relates to an electric power system equipment field, concretely relates to fastening terminal is exempted from to transformer.
Background
The secondary system of the transformer substation is auxiliary equipment for monitoring, measuring, controlling, protecting and adjusting primary equipment. The secondary system includes secondary equipment and its associated secondary circuit, which are parts of the power system that are not essential. The secondary loop is a channel for receiving and transmitting the electrical information by the secondary equipment, and the secondary equipment executes the functions of sampling, calculating, outputting and the like after receiving the electrical information, thereby realizing the contact monitoring and control with the primary system. Statistics shows that part of secondary system faults are caused by loose wiring of a secondary circuit, and particularly poor contact conditions are difficult to diagnose. The secondary circuit can be divided into an alternating current and direct current power supply circuit, a direct current control circuit, a direct current signal circuit and a voltage and current circuit. Due to the fact that the number of the wiring is large, the loop is complex, and wiring faults occur frequently. The wiring fault of the secondary circuit of the transformer substation easily causes the incorrect remote signaling and the incorrect protection of the system, and even damages primary equipment and the personal safety of crisis, thus causing great harm.
The secondary circuit wiring trouble of transformer substation takes place in terminal junction mostly, and common trouble mainly has: the situation that the secondary wire and the terminal cannot be reliably connected and contact is poor is caused by the loosening of screws of the traditional wiring terminal; when secondary equipment maintenance work is carried out, because screws of the traditional wiring terminal are exposed, the risk of mistaken collision in three errors of relay protection exists, and incorrect action or mistaken signal sending of the relay protection is caused; conventional terminals also present a risk of "mis-wiring". When the transformer substation pre-test scheduled inspection work is carried out, a large amount of time and human resources are consumed in the traditional wiring terminal screw fastening, terminal disassembling and wiring work. The overall defects are represented by insufficient safety, reliability, convenience and rapidness.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, control simple and efficient, tear the wiring weak point consuming time, the suitability is strong exempt from to fasten the terminal to replace current binding post that adopts the screw fastening mode.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the transformer fastening-free terminal comprises a terminal fixing area (1) arranged at the bottom end, and a wiring fixing area (2) arranged above the terminal fixing area (1), wherein the wiring fixing area (2) comprises a crimping lever (5), crimping springs (6) and a wire inlet groove (7), the two crimping springs (6) are symmetrically arranged above the wire inlet groove (7), the side notches of elastic pieces are in a mouth shape, the crimping lever (5) is arranged above the crimping springs (6), a conductor connecting piece (8) penetrates through the notches of the elastic pieces and is fixed in a clamping groove formed by a terminal board body together with the crimping springs (6), and the wiring fixing area (2) is connected with the wiring fixing area (2) through the conductor connecting piece; the middle part of the wiring fixing area (2) is provided with a terminal short-connection area (4), the terminal short-connection area (4) is arranged above the conductor connecting sheet (8), the two ends of the crimping lever (5) and the crimping spring (6) are separated, and the middle part of the conductor connecting sheet (8) is provided with a connecting sheet fastening hole (10).
Furthermore, two ends of the terminal short-connection area (4) are provided with connecting piece fixing clamping grooves (9), and the connecting piece fixing clamping grooves (9) separate the crimping lever (5) and the crimping spring (6) of the wiring fixing area (2).
Further, the terminal appearance matches with the interior guide rail strip shape of transformer substation's protection screen cabinet, enables terminal and guide rail strip complete coincidence.
Furthermore, the pressure welding lever (5) comprises a fulcrum (11), the fulcrum (11) divides the pressure welding lever (5) into a power arm (12) and a resistance arm (13), and the power arm (12) is arranged on the outer side.
The terminal fixing area is arranged at the lower part of the wiring terminal and is connected with the terminal body, the shape of the terminal fixing area is designed according to the shape of a guide rail strip in a protection screen cabinet of a transformer substation, and the terminal can be completely matched with the guide rail strip; the wiring fixing area is arranged on two sides of the wiring terminal and consists of a wire inlet groove, a wiring crimping lever and a wiring crimping spring, so that the work of detaching and wiring the secondary wire on the terminal is completed, and meanwhile, the secondary wire is fixed in the wiring terminal; the terminal conductive area is arranged between the terminal fixing area and the two terminal short-connection areas and is connected with the two terminal wiring areas through the conductor connecting sheet; the terminal short circuit area comprises a connecting piece fixing clamping groove and a connecting piece fastening hole, the connecting piece fixing clamping groove and the connecting piece fastening hole are arranged between the two wiring fastening areas, and the connecting piece fastening hole is arranged on the terminal conductor connecting piece. The conductor connecting sheet and the crimping spring of the novel fastening-free terminal for power transformation are made of conductive materials, and the rest of components are made of insulating materials.
The terminal adopts the terminal crimping lever and the terminal crimping spring to apply pressure on the secondary wire so as to achieve the purpose of fastening the wiring, and the screw fastening mode is replaced.
The terminal short circuit area can realize that the terminal is connected with the adjacent terminal in parallel through the voltage terminal short connection piece.
The utility model discloses a terminal non-conducting part adopts the insulating material system of tolerating not less than 1000V voltage. The mode that traditional terminal was fastened with the screw has been replaced, has effectively reduced the exposed area of conductor. The method is suitable for secondary wires of different types and different wire diameters.
Compared with the prior art, the utility model has the advantages of as follows:
1. the safety of the power grid is guaranteed: the utility model discloses replaced screw-up's mode, effectively reduced the area that binding post conductor part exposes in the air, reduced because the mistake bumps and the not hard up electric wire netting risk that causes of secondary wiring, effectively ensured the safety of the person, equipment and electric wire netting.
2. The operation is convenient and quick: the utility model discloses when secondary binding post department tears open the line during operation, need not to carry out the screw fastening, convenient and fast has saved plenty of time and manpower resources.
3. The use flexibility is strong: the utility model discloses accessible voltage terminal short even piece realizes this terminal and adjacent terminal parallel connection, and can adjust the quantity of parallelly connected terminal as required.
4. The application range is wide: the utility model discloses a general structural design, it is applicable in all conventional transformer substations.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a sectional perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a right side view in cross-section of the present invention;
fig. 4 is a cross-sectional top view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.
As shown in fig. 1 and 2, the power transformation fastening-free terminal of this embodiment includes a terminal fixing area 1 disposed at a bottom end, and a wiring fixing area 2 disposed above the terminal fixing area 1, where the wiring fixing area 2 includes a crimping lever 5, crimping springs 6 and a wire inlet slot 7, the two crimping springs 6 are symmetrically disposed above the wire inlet slot 7, a lateral notch of an elastic sheet is in a "mouth" shape, the crimping lever 5 is disposed above the crimping springs 6, a conductor connecting sheet 8 penetrates through the notch of the elastic sheet and is fixed in a clamping slot formed by a terminal block body together with the crimping springs 6, and the wiring fixing area 2 is connected with the wiring fixing area 2 through the conductor connecting sheet; the middle part of the wiring fixing area 2 is provided with a terminal short-connection area 4, the terminal short-connection area 4 is arranged above the conductor connecting sheet 8 to separate the two-end crimping lever 5 and the crimping spring 6, and the middle part of the conductor connecting sheet 8 is provided with a connecting sheet fastening hole 10, as shown in fig. 4. The two ends of the terminal short-connection area 4 are provided with a connecting piece fixing clamping groove 9, and the connecting piece fixing clamping groove 9 separates the crimping lever 5 and the crimping spring 6 of the wiring fixing area 2. The terminal appearance matches with the interior guide rail strip shape of transformer substation's protection screen cabinet, enables terminal and guide rail strip complete coincidence. The crimping lever 5 comprises a fulcrum 11, the fulcrum 11 divides the crimping lever 5 into a power arm 12 and a resistance arm 13, the power arm 12 being arranged on the outside, as shown in fig. 3.
The crimping lever 5 of the embodiment passes through cylindrical components on two sides of the lever and a round hole corresponding to the terminal plate body to form a lever fulcrum 11, and the geometric relation between the power arm 12 and the resistance arm 13 is determined by utilizing the principle of the labor-saving lever, so that the purpose of saving labor is achieved, and the practicability of use is improved.
In order to ensure safety, except for the crimping spring 6 and the conductor connecting sheet 8, the rest of the components are made of insulating materials which can bear the voltage of not less than 1000V.
In this embodiment, the crimping lever 5, the crimping spring 6 and the conductor connection 8 are all detachable structures, and the rest of the components are terminal fixed connections. The compression joint lever 5 penetrates through the terminal plate body through cylindrical components on two sides of the lever and a corresponding round hole to form a lever fulcrum 11, and is connected with the terminal plate body through a clamping groove. The crimping spring 6 and the conductor connecting sheet 8 are optimized in structure, so that the conductor connecting sheet 8 integrally presents a concave groove and is matched with the crimping spring 6 in structure, and the clamping groove formed by the terminal plate body structure fixes the crimping spring between the connecting sheet fixing clamping groove and the conductor connecting sheet. The wiring fixing area takes the terminal short connection area as an axis, and the left structure and the right structure are symmetrical. The terminal fixing area 1 is arranged at the lower part of the wiring terminal and forms a unified whole with the terminal.
The utility model discloses select for use the insulating material that can tolerate at least 1000V voltage, convenient operation, safe and reliable. The utility model discloses need to install in the transformer substation on the guide rail strip, crimping lever 5 passes the round hole that the terminal plate body corresponds with it through lever both sides cylindrical member 11 and forms the lever fulcrum, crimping lever 5 initial condition is close horizontal position, use power arm 12 to use the fulcrum to rotate 90 as an anticlockwise, lever resistance arm 13 uses the fulcrum to rotate anticlockwise downwards as the axle simultaneously, and produce decurrent pressure to crimping spring 6's shell fragment, make crimping spring 6 take place deformation, shell fragment first half downstream, shell fragment the latter half and conductor connection piece are fixed by the terminal plate body draw-in groove this moment, do not produce the displacement, shell fragment side incision is "day" type, the shell fragment produces ascending elasticity simultaneously. The secondary wire is inserted from the terminal wire inlet groove 7, and the wire core enters the lower opening structure in the elastic sheet cut opening structure along the wire inlet groove structure. At this moment, with 5 power arms 12 of crimping lever as the axle clockwise rotation 90 to initial condition, lever resistance arm 13 uses the fulcrum to upwards rotate clockwise as the axle simultaneously, no longer to crimping spring 6 production pressure, and crimping spring 6 first half is owing to resume to the state before the deformation, can produce ascending displacement and elasticity, but the secondary line sinle silk has the line footpath, the crimping can make the shell fragment produce the displacement all the time in the shell fragment, resume not to the state before the deformation, so the shell fragment can be because of taking place deformation and continuously produce ascending elasticity, can be fixed in on the conductor connecting piece with the help of shell fragment elasticity with the secondary line crimping by this, in order to reach the mesh in being fixed in binding post with the secondary line. According to the work needs, need carry out parallel connection with a plurality of binding post sometimes, consequently the utility model discloses set up the short joining region of terminal, can be with the short even piece of conventional voltage terminal put into binding post along even piece fixed slot 9, with the short even piece of screw in from the area even piece fastening hole 10 in. At this time, the conductor connecting sheet of the terminal is connected with the conductor connecting sheet of the adjacent terminal through the short connecting sheet, so that equipotential parallel connection between the terminals is realized, and the number of the short connecting sheets of the voltage terminal can be adjusted according to the number of the terminals which are connected in parallel as required.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a transformer exempts from to fasten terminal which characterized in that: the terminal fixing area (1) is arranged at the bottom end, the wiring fixing area (2) is arranged above the terminal fixing area (1), the wiring fixing area (2) comprises a crimping lever (5), crimping springs (6) and a wire inlet groove (7), the two crimping springs (6) are symmetrically arranged above the wire inlet groove (7), notches on the side surfaces of elastic sheets are in a 'mouth' shape, the crimping lever (5) is arranged above the crimping springs (6), a conductor connecting sheet (8) penetrates through the notches of the elastic sheets and is fixed in a clamping groove formed by a terminal block body together with the crimping springs (6), and the wiring fixing area (2) is connected with the wiring fixing area (2) through the conductor connecting sheet; the middle part of the wiring fixing area (2) is provided with a terminal short-connection area (4), the terminal short-connection area (4) is arranged above the conductor connecting sheet (8), the two ends of the crimping lever (5) and the crimping spring (6) are separated, and the middle part of the conductor connecting sheet (8) is provided with a connecting sheet fastening hole (10).
2. A transformation fastenerless terminal according to claim 1, wherein: and the two ends of the terminal short-connection area (4) are provided with connecting piece fixing clamping grooves (9), and the connecting piece fixing clamping grooves (9) separate the crimping lever (5) and the crimping spring (6) of the wiring fixing area (2).
3. A transformation fastenerless terminal according to claim 1, wherein: the terminal appearance matches with the interior guide rail strip shape of transformer substation's protection screen cabinet, enables terminal and guide rail strip complete coincidence.
4. A transformation fastenerless terminal according to claim 1, wherein: the crimping lever (5) comprises a fulcrum (11), the fulcrum (11) divides the crimping lever (5) into a power arm (12) and a resistance arm (13), and the power arm (12) is arranged on the outer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020252779.7U CN211556174U (en) | 2020-03-04 | 2020-03-04 | Fastening-free terminal for power transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020252779.7U CN211556174U (en) | 2020-03-04 | 2020-03-04 | Fastening-free terminal for power transformation |
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| Publication Number | Publication Date |
|---|---|
| CN211556174U true CN211556174U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020252779.7U Active CN211556174U (en) | 2020-03-04 | 2020-03-04 | Fastening-free terminal for power transformation |
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| Country | Link |
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| CN (1) | CN211556174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115149472A (en) * | 2022-07-31 | 2022-10-04 | 贵州电网有限责任公司 | Multifunctional junction box of electric energy meter |
| CN117317678A (en) * | 2023-11-06 | 2023-12-29 | 广东材通实业有限公司 | Connection structure of binding post |
-
2020
- 2020-03-04 CN CN202020252779.7U patent/CN211556174U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115149472A (en) * | 2022-07-31 | 2022-10-04 | 贵州电网有限责任公司 | Multifunctional junction box of electric energy meter |
| CN115149472B (en) * | 2022-07-31 | 2024-04-05 | 贵州电网有限责任公司 | Multifunctional junction box of electric energy meter |
| CN117317678A (en) * | 2023-11-06 | 2023-12-29 | 广东材通实业有限公司 | Connection structure of binding post |
| CN117317678B (en) * | 2023-11-06 | 2024-05-28 | 广东材通实业有限公司 | Connection structure of binding post |
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