CN112420355B - Wiring terminal for power transformer - Google Patents

Wiring terminal for power transformer Download PDF

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Publication number
CN112420355B
CN112420355B CN202011254059.5A CN202011254059A CN112420355B CN 112420355 B CN112420355 B CN 112420355B CN 202011254059 A CN202011254059 A CN 202011254059A CN 112420355 B CN112420355 B CN 112420355B
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China
Prior art keywords
cylinder
copper wire
fixing
fixed
terminal
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CN202011254059.5A
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CN112420355A (en
Inventor
谢锡坚
何胤
刘钢
郭志和
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Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by Guangdong Power Grid Co Ltd, Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202011254059.5A priority Critical patent/CN112420355B/en
Publication of CN112420355A publication Critical patent/CN112420355A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

The invention discloses a connecting terminal for a power transformer, which comprises a base, an installation part and a fixing part, wherein the installation part is fixed on the side surface of the base, the fixing part is fixed on the other side surface of the base, the installation part is used for fixedly connecting an outgoing line terminal at the low-voltage end of the transformer, the fixing part is used for fixedly connecting a copper wire at the output end of a load, the fixing part comprises a fixing cylinder, a spiral pore passage is arranged in the fixing cylinder, an inlet is arranged on the side surface of the fixing cylinder, the inlet is connected with one end of the pore passage, a pressing part is arranged in the pore passage, the copper wire penetrates into the pore passage from the inlet, the pressing part presses the copper wire after the copper wire butts against the tail end of the pore passage so as to connect and fix the copper wire with the fixing part, the dismounting step is simple and convenient, the copper, the phenomenon that a certain part is burnt due to overhigh temperature can not occur.

Description

Wiring terminal for power transformer
Technical Field
The invention relates to the technical field of power transformers, in particular to a wiring terminal for a power transformer.
Background
With the continuous healthy and high-speed development of Chinese economy, the power demand continuously and rapidly increases, and a transformer as an important device for power supply and distribution plays an indispensable role in a power grid, and the stable and safe operation of the transformer is directly related to the national economy and the life balance of people. The wiring terminal is used as an important component of the transformer, particularly a low-voltage end wiring terminal, and due to low voltage and large current, when the contact is poor or the contact area is too small, and the load is increased, the heat productivity of the wiring terminal is easily overhigh, so that the aging of the wiring terminal and a copper plate is easily caused, the sealing of a voltage section outgoing line terminal of the transformer is also easily damaged, and the service life of the transformer is shortened.
The connection terminal of the present transformer has some problems, such as:
(1) in the prior art, a copper wire of a load output end is usually wound on an outlet terminal of a low-voltage end of a transformer, and then the copper wire is fixed on the outlet terminal through a knob of a nut, so that the copper wire needs to be detached from the outlet terminal under the conditions of subsequent maintenance, wire end replacement, disconnection and the like, and the copper wire needs to be wound and fixed again if reconnection is needed, so that the operation is complex and inconvenient;
(2) when the copper wire is directly wound on the outgoing line terminal in the prior art, the circuit is communicated in the winding process, gloves are needed to be worn if live-line operation is needed, but the copper wire needs to be wound, the operation is affected by wearing the gloves, the power-off connection is needed, the operation efficiency is affected, and certain danger still exists when insulating gloves are not worn;
(3) when the copper wire is wound in the prior art, the tail end of the copper wire cannot be tightly attached to a wire outlet terminal, so that a part of the copper wire stretches out during subsequent compression, potential safety hazards can be caused if the copper wire is lapped on other wire ends, and the neatness during wiring is also influenced;
(4) and in the prior art, the copper wire needs to be compressed tightly through a nut and the like after being wound, and in the compressing process, the connection between the copper wire and the end is uneven, the electrifying current of each contact point is inconsistent, the heat productivity is inconsistent, and the potential safety hazard is caused.
Disclosure of Invention
The invention aims to provide a connecting terminal for a power transformer, which aims to solve the problems that in the prior art, a copper wire at a load output end is usually wound on an outgoing line terminal at a low-voltage end of the transformer, the copper wire needs to be detached from the outgoing line terminal under the conditions of maintenance, line end replacement, disconnection and the like, and the copper wire needs to be wound and fixed again if the copper wire needs to be reconnected, so that the operation is complicated and inconvenient; under the condition that the copper wire is directly wound on the outlet terminal, a circuit is communicated in the winding process, gloves are needed to be worn if live-line operation is needed, but the copper wire needs to be wound, the operation is affected by wearing the gloves, power-off connection is needed, the operation efficiency is affected, and certain danger still exists when insulating gloves are not worn; when the copper wire is wound, the tail end of the copper wire cannot be tightly attached to a wire outlet terminal, so that a part of the copper wire stretches out during subsequent compression, potential safety hazards can be caused if the copper wire is lapped on other wire ends, and the neatness during wiring is also influenced; the copper conductor needs to be compressed tightly through a nut and the like after being wound, and in the compressing process, the connection between the copper conductor and the end is uneven, the electrifying current of each contact point is inconsistent, the heating amount is inconsistent, and the potential safety hazard is caused.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a wiring terminal for a power transformer comprises a base, an installation part and a fixing part, wherein the installation part is fixed on one side surface of the base, the fixing part is fixed on the other side surface of the base, the installation part is used for fixedly connecting a low-voltage end outgoing terminal of the transformer, and the fixing part is used for fixedly connecting a copper wire of a load output end;
the mounting part comprises a mounting barrel which is used for being sleeved on the outgoing line terminal, a through vertical notch is arranged on the side wall of the mounting barrel, a clamping part is arranged on the vertical notch, and the vertical notches are close to each other through the clamping part, so that the mounting barrel is fixed on the outgoing line terminal;
the fixing part comprises a fixing barrel, a spiral hole is formed in the fixing barrel, an inlet is formed in the side face of the fixing barrel and connected with one end of the hole, a compressing part is arranged in the hole, a copper wire penetrates into the hole from the inlet, and after the copper wire abuts against the tail end of the hole, the compressing part presses the copper wire so that the copper wire is fixedly connected with the fixing part.
As a preferable mode of the present invention, the fixed cylinder includes an outer cylinder, an upper cylinder and a lower cylinder are provided in the outer cylinder, the upper cylinder and the lower cylinder are both of a spiral sheet structure, the lower cylinder is integrally formed with the outer cylinder, and a closed space enclosed by the upper cylinder, the lower cylinder, and an inner wall of the outer cylinder is the duct.
As a preferable scheme of the present invention, a gland nut and a gland slide are arranged on the periphery of the outer cylinder, the gland nut is in threaded connection with the upper portion of the outer cylinder, the gland slide is sleeved on the lower portion of the outer cylinder, a vertical chute is arranged on the inner wall of the gland slide, a limiting vertical bar corresponding to the vertical chute is arranged on the outer wall of the outer cylinder, the limiting vertical bar is located in the vertical chute, the gland nut is connected with the gland slide through a bearing, and the gland nut is connected with the upper cylinder.
In a preferred embodiment of the present invention, the upper tube portion has a thickness greater than that of the lower tube portion, the outer tube has a side wall provided with a plurality of vertical notch grooves, the pressing slide tube is connected to the upper tube portion through the notch grooves, and the vertical length of the notch grooves is smaller than the thickness of the upper tube portion.
As a preferable scheme of the present invention, the cross-section of the duct is rhombic, wherein the upper surface of the upper cylinder portion is v-shaped, the lower surface of the lower cylinder portion is v-shaped, a plurality of upper butt-joint grooves are arranged at intervals on the upper cylinder portion, an upper butt-joint wall is arranged between adjacent upper butt-joint grooves, a plurality of lower butt-joint grooves are arranged at intervals on the lower cylinder portion, a lower butt-joint wall is arranged between adjacent lower butt-joint grooves, the upper butt-joint grooves correspond to the lower butt-joint wall in size and are positioned above the lower butt-joint wall, the upper butt-joint wall corresponds to the lower butt-joint groove in size and the upper butt-joint wall is positioned above the lower butt-joint groove.
As a preferable aspect of the present invention, when the upper cylinder portion moves down, the lower butting wall is inserted into the corresponding upper butting groove, and the upper butting wall is inserted into the corresponding lower butting groove, so as to compress the space of the porthole and move the copper wire to the center of the porthole until the copper wire is clamped and fixed on the axis of the porthole.
As a preferable scheme of the present invention, an upper filling block is disposed in the upper butt-joint groove, a lower surface of the upper filling block is consistent with a lower surface of the upper cylinder portion, an upper support spring is disposed between a top of the upper butt-joint groove and the upper filling block, and a lower end surface of the upper filling block is flush with a lower end surface of the upper butt-joint wall under the action of gravity and a tensile force of the upper support spring;
the lower butt joint groove is internally provided with a lower filling block, the upper surface of the lower filling block is consistent with the upper surface of the lower barrel part, a lower supporting spring is arranged between the bottom of the lower butt joint groove and the lower filling block, and under the supporting action of gravity and the lower supporting spring, the upper end surface of the lower filling block is flush with the upper end surface of the lower butt joint wall.
As a preferable mode of the present invention, the clamping member includes clamping walls provided at both ends of the vertical notch, through holes are provided in the clamping walls, and a bolt is connected between adjacent through holes.
Compared with the prior art, the invention has the following beneficial effects:
(1) in the invention, the copper wire of the load output end is firstly connected with the fixed part, and then the installation part is connected with the outgoing line terminal of the low-voltage end of the transformer, when the line end is maintained or replaced subsequently, the copper wire and the fixed part are always in a connection relation without disassembly, only the installation part needs to be disassembled from the outgoing line terminal, and only the installation part and the outgoing line terminal need to be connected when the installation part is reconnected, and the operation can be simplified because the installation part does not need to wind the copper wire when the installation part is connected;
(2) in the invention, the copper wire is connected with the fixed part firstly, the circuit is not switched on in the process, the electric shock danger is less, the operation can be carried out without wearing gloves, and when the connection of the copper wire is finished and the connection between the installation part and the outgoing line terminal is carried out, the operation can be easily finished when the gloves are worn as only the installation part is sleeved on the outgoing line terminal and then the bolt is twisted, so the operation steps can be simplified, and the danger in direct connection is avoided;
(3) in the invention, the copper wire is accommodated in the pore channel, so the copper wire cannot extend out and can not be lapped on other wire ends, and the copper wire has good windproof and rainproof performance and eliminates potential safety hazards;
(4) in the invention, the copper wires are laid along the spiral pore canals, and the stacking phenomenon does not exist, so after the copper wires are compacted by the compacting component, the electrifying current of each contact point is kept consistent, and the phenomenon that a certain part is burnt due to overhigh temperature does not exist, thereby having higher stability and safety.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a connection terminal for a power transformer according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a mounting portion according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a fixing portion according to an embodiment of the present invention;
FIG. 4 is a schematic view of a notch groove according to an embodiment of the present invention;
fig. 5 is a lower sectional view of a fixing cylinder in the embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1. a base; 2. an installation part; 3. a fixed part;
2-1, mounting a cylinder; 2-2, vertical gap; 2-3, a clamping component;
2-3-1, clamping walls; 2-3-2, a through hole; 2-3-3, bolt;
3-1, fixing the cylinder; 3-2, pore channels; 3-3, an inlet port; 3-4, a pressing component;
3-1-1, an outer cylinder; 3-1-2, an upper barrel part; 3-1-3, a lower barrel part; 3-1-4, an upper butt-joint groove; 3-1-5, an upper butting wall; 3-1-6, a lower butt-joint groove; 3-1-7, lower butt wall; 3-1-8, filling blocks are arranged; 3-1-9, an upper supporting spring; 3-1-10, lower filling blocks; 3-1-11, a lower supporting spring;
3-4-1, a compression nut; 3-4-2, pressing the sliding cylinder; 3-4-3, vertical chute; 3-4-4, limiting vertical bars; 3-4-5 and a notch groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 to 5, the invention provides a connecting terminal for a power transformer, which comprises a base 1, an installation part 2 and a fixing part 3, wherein the installation part 2 is fixed on one side surface of the base 1, the fixing part 3 is fixed on the other side surface of the base 1, the installation part 2 is used for fixedly connecting a low-voltage end outgoing terminal of the transformer, the fixing part 3 is used for fixedly connecting a copper wire of a load output end, the installation part 2 comprises an installation cylinder 2-1 which is sleeved on the outgoing terminal, a through vertical notch 2-2 is arranged on the side wall of the installation cylinder 2-1, a clamping part 2-3 is arranged on the vertical notch 2-2, the clamping part 2-3 comprises a clamping wall 2-3-1 which is provided with two ends of the vertical notch 2-2, a through hole 2-3-2 is arranged on the clamping wall 2-3-1, bolts 2-3-3 are connected between the adjacent through holes 2-3-2, and the vertical notches 2-2 are close to each other through the clamping parts 2-3, so that the mounting cylinder 2-1 is fixed on the outlet terminal.
In the prior art, the copper wire of the load output end is usually wound on the outgoing line terminal of the low-voltage end of the transformer, then the copper wire is fixed on the outgoing line terminal through the knob of the screw cap, under the conditions of subsequent maintenance, line end replacement, disconnection and the like, the copper wire needs to be detached from the outgoing line terminal, if the copper wire needs to be reconnected, the copper wire needs to be wound and fixed again, so that the operation is complicated and inconvenient, the copper wire of the load output end is firstly connected with the fixing part 3 through the arrangement, then the installation part 2 is connected with the outgoing line terminal of the low-voltage end of the transformer, the copper wire and the fixing part 3 always keep a connection relationship during the subsequent maintenance or line end replacement, the detachment is not needed, the installation part 2 only needs to be detached from the outgoing line terminal, the installation part 2 only needs to be connected with the outgoing line terminal during reconnection, and the installation part 2 does not need to wind the copper wire during connection, the operation can be simplified.
Meanwhile, when the copper wire is directly wound on the outgoing line terminal in the prior art, the circuit is communicated in the winding process, and if the hot-line operation is required, the glove is worn, however, since the copper wires need to be wound, the operation is affected by wearing gloves, so that the power-off connection is needed, the operation efficiency is affected, and certain danger still exists when the insulating gloves are not worn, in the present embodiment, the copper wire is connected to the fixing portion 3 first, the circuit is not turned on in this process, the danger of electric shock is small, the operation can be performed without wearing gloves, when the connection between the mounting portion 2 and the outlet terminal is completed, since the installation part 2 is only required to be sleeved on the outgoing line terminal and then the bolt is twisted, the operation can be easily finished when the glove is worn, therefore, the present embodiment can simplify the operation procedure and avoid the danger in the direct connection by the above arrangement.
Specifically, the fixing part 3 comprises a fixing cylinder 3-1, a spiral pore canal 3-2 is arranged in the fixing cylinder 3-1, an inlet 3-3 is arranged on the side face of the fixing cylinder 3-1, the inlet 3-3 is connected with one end of the pore canal 3-2, a compressing component 3-4 is arranged in the pore canal 3-2, a copper wire penetrates into the pore canal 3-2 from the inlet 3-3 and extends forwards along the spiral pore canal 3-2 along with the propulsion of the copper wire, and after the copper wire is abutted against the tail end of the pore canal 3-2, the compressing component 3-4 operates to compress the copper wire so as to enable the copper wire to be connected and fixed with the fixing part 3.
In the prior art, when the copper conductor is wound, the tail end of the copper conductor cannot be tightly attached to a wire outlet terminal, so that a part of the copper conductor stretches out when the copper conductor is subsequently compressed, potential safety hazards can be caused if the copper conductor is lapped on other wire ends, and the neatness of the copper conductor during wiring is also influenced. In the embodiment, the copper wire is accommodated in the pore 3-2, so that the copper wire cannot extend out and can not be lapped on other wire ends, the wind-proof and rain-proof performance is good, and potential safety hazards are eliminated.
Meanwhile, in the prior art, the copper wire needs to be tightly pressed through a nut and the like after being wound, in the process of tight pressing, the connection between the copper wire and the end is uneven, the electrifying current of each contact point is inconsistent, the heating amount is inconsistent, and potential safety hazards exist.
Specifically, the fixed cylinder 3-1 comprises an outer cylinder 3-1-1, an upper cylinder 3-1-2 and a lower cylinder 3-1-3 are arranged in the outer cylinder 3-1-1, the upper cylinder 3-1-2 and the lower cylinder 3-1-3 are both in a spiral sheet structure, the lower cylinder 3-1-3 and the outer cylinder 3-1-1 are integrally formed, a closed space defined by the inner walls of the upper cylinder 3-1-2, the lower cylinder 3-1-3 and the outer cylinder 3-1-1 is a duct 3-2, a compression nut 3-4-1 and a compression sliding cylinder 3-4-2 are arranged on the periphery of the outer cylinder 3-1-1, the compression nut 3-4-1 is connected to the upper part of the outer cylinder 3-1-1 through threads, the compressing sliding barrel 3-4-2 is sleeved at the lower part of the outer barrel 3-1-1, the inner wall of the compressing sliding barrel 3-4-2 is provided with a vertical chute 3-4-3, the outer wall of the outer barrel 3-1-1 is provided with a limiting vertical bar 3-4-4 corresponding to the vertical chute 3-4-3, the limiting vertical bar 3-4-4 is positioned in the vertical chute 3-4-3, the compressing screw cap 3-4-1 is connected with the compressing sliding barrel 3-4-2 through a bearing, meanwhile, the compressing screw cap 3-4-1 is connected with the upper barrel part 3-1-2, the thickness of the upper barrel part 3-1-2 is larger than that of the lower barrel part 3-1-3, the side wall of the outer barrel 3-1-1 is provided with a plurality of vertical notch grooves 3-4-5, the compressing slide cylinder 3-4-2 is connected with the upper cylinder part 3-1-2 through a gap groove 3-4-5.
When the copper wire is not connected, the pore canal 3-2 is in an open state, after the copper wire enters the pore canal 3-2 and the copper wire completely enters or the tail end of the copper wire is abutted against the tail end of the pore canal 3-2, the pressing part 3-4 operates, the pressing sliding barrel 3-4-2 is driven to move downwards by twisting the pressing nut 3-4-1, the upper barrel part 3-1-2 is further driven to move downwards to be close to the lower barrel part 3-1-3, the pore canal 3-2 is compressed until the copper wire is clamped, and therefore the fixing barrel part 3-1 is tightly contacted with the copper wire, and the connection between the copper wire and the fixing part 3 is realized.
In the embodiment, the vertical length of the notch groove 3-4-5 is smaller than the thickness of the upper barrel part 3-1-2, and the upper barrel part 3-1-2 can block the notch groove 3-4-5, so that the copper conductor is prevented from extending out of the outer barrel 3-1-1 from the notch groove 3-4-5.
Further, in order to better clamp the copper conductor and realize that the fixed cylinder 3-1 is in closer contact with the copper conductor, the section of the pore canal 3-2 is in a diamond shape, wherein the upper surface of the upper cylinder 3-1-2 is in a V shape, the lower surface of the lower cylinder 3-1-3 is in an inverted V shape, a plurality of upper butt joint grooves 3-1-4 are arranged on the upper cylinder 3-1-2 at intervals, an upper butt joint wall 3-1-5 is arranged between adjacent upper butt joint grooves 3-1-4, a plurality of lower butt joint grooves 3-1-6 are arranged on the lower cylinder 3-1-3 at intervals, a lower butt joint wall 3-1-7 is arranged between adjacent lower butt joint grooves 3-1-6, the sizes of the upper butt joint groove 3-1-4 and the lower butt joint wall 3-1-7 are corresponding, and the upper butt joint groove 3-1-4 is positioned on the upper butt joint wall 3-1-7 The upper butt joint wall 3-1-5 and the lower butt joint groove 3-1-6 are corresponding in size, and the upper butt joint wall 3-1-5 is located above the lower butt joint groove 3-1-6.
When the pore canal 3-2 is closed, the upper barrel part 3-1-2 moves downwards, the lower butt joint wall 3-1-7 is inserted into the corresponding upper butt joint groove 3-1-4, the upper butt joint wall 3-1-5 is inserted into the corresponding lower butt joint groove 3-1-6, the space of the pore canal 3-2 is compressed, and as the cross section of the pore canal 3-2 is in a diamond shape, the copper conducting wire is driven to move to the center of the pore canal 3-2 when the pore canal 3-2 is closed until the copper conducting wire is clamped and fixed on the axis of the pore canal 3-2, so that the copper conducting wire is clamped tightly.
Through the arrangement, the upper barrel part 3-1-2 and the lower barrel part 3-1-3 are provided with grooves at intervals, if a copper wire is inserted into the grooves, the copper wire cannot move along the pore canal 3-2, so that the connection and fixation cannot be completed, in order to avoid the situation, the upper butt joint groove 3-1-4 is internally provided with the upper filling block 3-1-8, the lower surface of the upper filling block 3-1-8 is consistent with the lower surface of the upper barrel part 3-1-2, the upper supporting spring 3-1-9 is arranged between the top of the upper butt joint groove 3-1-4 and the upper filling block 3-1-8, the lower butt joint groove 3-1-6 is internally provided with the lower filling block 3-1-10, the upper surface of the lower filling block 3-1-10 is consistent with the upper surface of the lower barrel part 3-1-3, a lower supporting spring 3-1-11 is arranged between the bottom of the lower butt joint groove 3-1-6 and the lower filling block 3-1-10, when the pore canal 3-2 is opened, under the action of gravity and the tension of the upper supporting spring 3-1-9, the lower end surface of the upper filling block 3-1-8 is flush with the lower end surface of the upper butt-joint wall 3-1-5, meanwhile, under the supporting action of gravity and a lower supporting spring 3-1-11, the upper end surface of the lower filling block 3-1-10 is flush with the upper end surface of the lower butt-joint wall 3-1-7, so that the upper surface of the cylinder part 3-1-2 and the lower surface of the lower cylinder part 3-1-3 are both finished smooth surfaces, namely the inner wall of the pore channel 3-2 is smooth, and the movement of a copper wire cannot be hindered.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (3)

1. The utility model provides a binding post for power transformer which characterized in that: the transformer low-voltage terminal comprises a base (1), an installation part (2) and a fixing part (3), wherein the installation part (2) is fixed on the side surface of the base (1), the fixing part (3) is fixed on the other side surface of the base (1), the installation part (2) is used for fixedly connecting a low-voltage end outgoing line terminal of a transformer, and the fixing part (3) is used for fixedly connecting a copper wire of a load output end;
the mounting part (2) comprises a mounting cylinder (2-1) which is used for being sleeved on the outlet terminal, a through vertical notch (2-2) is formed in the side wall of the mounting cylinder (2-1), a clamping part (2-3) is arranged on the vertical notch (2-2), and the vertical notches (2-2) are close to each other through the clamping part (2-3), so that the mounting cylinder (2-1) is fixed on the outlet terminal;
the fixing part (3) comprises a fixing cylinder body (3-1), a spiral pore channel (3-2) is arranged in the fixing cylinder body (3-1), an inlet (3-3) is arranged on the side face of the fixing cylinder body (3-1), the inlet (3-3) is connected with one end of the pore channel (3-2), a pressing part (3-4) is arranged in the pore channel (3-2), a copper wire penetrates into the pore channel (3-2) through the inlet (3-3), and after the copper wire abuts against the tail end of the pore channel (3-2), the pressing part (3-4) presses the copper wire so that the copper wire is connected and fixed with the fixing part (3).
2. A terminal block for a power transformer as claimed in claim 1, wherein: the fixed cylinder (3-1) comprises an outer cylinder (3-1-1), an upper cylinder (3-1-2) and a lower cylinder (3-1-3) are arranged in the outer cylinder (3-1-1), the upper cylinder (3-1-2) and the lower cylinder (3-1-3) are both in spiral sheet structures, the lower cylinder (3-1-3) and the outer cylinder (3-1-1) are integrally formed, and a closed space defined by the upper cylinder (3-1-2), the lower cylinder (3-1-3) and the inner wall of the outer cylinder (3-1-1) is the duct (3-2).
3. A terminal block for a power transformer as claimed in claim 1, wherein: the clamping component (2-3) comprises clamping walls (2-3-1) arranged at two ends of the vertical notch (2-2), through holes (2-3-2) are formed in the clamping walls (2-3-1), and bolts (2-3-3) are connected between every two adjacent through holes (2-3-2).
CN202011254059.5A 2020-11-11 2020-11-11 Wiring terminal for power transformer Active CN112420355B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011254059.5A CN112420355B (en) 2020-11-11 2020-11-11 Wiring terminal for power transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011254059.5A CN112420355B (en) 2020-11-11 2020-11-11 Wiring terminal for power transformer

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CN112420355A CN112420355A (en) 2021-02-26
CN112420355B true CN112420355B (en) 2021-09-10

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Application Number Title Priority Date Filing Date
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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0696955A (en) * 1992-03-31 1994-04-08 Matsushita Electric Ind Co Ltd Coil and its manufacture
JPH0855728A (en) * 1994-08-10 1996-02-27 Taiyo Yuden Co Ltd Inductor parts and inductance adjusting method
CN1162941C (en) * 2001-02-14 2004-08-18 陈国雄 Crimp-connection sleeve tube for power transmission lines
CN201134516Y (en) * 2007-12-29 2008-10-15 丁高松 Wiring terminal station
CN105304290A (en) * 2015-11-04 2016-02-03 马忠华 Wiring terminal for power transformer
CN107046194A (en) * 2016-02-05 2017-08-15 刘刚 Electrical power connection device with dustproof and waterproof function
CN106057444A (en) * 2016-05-24 2016-10-26 龚柱 Design method for power transformer low voltage side outlet apparatus
CN209592399U (en) * 2019-03-04 2019-11-05 安费诺科技(深圳)有限公司 A kind of screw type j ack connector

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