CN111337776A - Test wire harness of power transformer - Google Patents
Test wire harness of power transformer Download PDFInfo
- Publication number
- CN111337776A CN111337776A CN202010202375.1A CN202010202375A CN111337776A CN 111337776 A CN111337776 A CN 111337776A CN 202010202375 A CN202010202375 A CN 202010202375A CN 111337776 A CN111337776 A CN 111337776A
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- wire harness
- clamping
- pipe
- rubber
- fixed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
Abstract
The invention belongs to the technical field of electric power, in particular to a test wire harness of a power transformer; comprises a wire harness body; one end of the wire harness body is movably and flexibly connected with a connecting chuck, and the other end of the wire harness body is connected with a plug-in connector; the wire harness body is spirally wound in a spiral groove formed in the fixed wire harness pipe; the fixed wire harness tube is made of insulating light fiber materials; the fixed wire harness pipe is sleeved and clamped with a clamping wire harness pipe, and a wire harness body is wound on the clamping wire harness pipe; the connecting chuck is inserted at one end of the fixed wire harness tube and is positioned at the clamping part for clamping the wire harness tube; the plug is clamped and installed at the other end of the fixed wire harness through the cavity rubber ring; the phenomenon that an operator is inconvenient to carry due to the fact that the wire harness collecting device is too large is effectively prevented; meanwhile, the cavity rubber ring can protect the plug connector, and the phenomenon that the plug connector is exposed outside for a long time to cause abrasion is prevented, so that the accuracy and the safety of a test are influenced.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a test wire harness of a power transformer.
Background
A power transformer is a stationary power device, which is used to change an ac voltage of a certain value into one or more different voltages having the same frequency. The electric substation is a heart of a power substation, and the power substation needs to complete voltage grade conversion and electric energy transmission through the heart. Before a power transformer is put into operation, various electrical tests are required to determine whether the power transformer has quality problems in installation or manufacture so as to determine whether the power transformer can be put into operation normally. The contents of the electrical test comprise a transformation ratio test, a direct current resistance test, an on-load tap-changer test and a short-circuit impedance test.
Because power transformer's mounted position and mounting height's difference lead to all needing experimental personnel to utilize the high altitude construction car to deliver to transformer bushing to the test wire to draw forth the end at every turn experimental, the experimental tester of transformer is less simultaneously, and then when carrying the longer test pencil of length, need use large-scale pencil take-up, and then inconvenient carry the pencil, can not carry safety protection to the connection chuck on the pencil simultaneously, when test pencil frequently carries, lead to connecting the chuck and produce the phenomenon of damage or wearing and tearing, and then influence the safety inspection of test pencil.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a test harness of a power transformer, which is mainly used for solving the problems that when the existing test harness with longer length is carried, a large-scale harness take-up device is needed, the harness is inconvenient to carry, meanwhile, a connecting chuck on the harness cannot be safely protected, and when the test harness is frequently carried, the connecting chuck is damaged or abraded, so that the safety detection of the test harness is influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a test wire harness of a power transformer, which comprises a wire harness body; one end of the wire harness body is movably and flexibly connected with a connecting chuck, and the other end of the wire harness body is connected with a plug-in connector; one part of the wire harness body is spirally wound in a spiral groove formed in the fixed wire harness pipe, and the middle position of the wire harness body is fixed on the fixed wire harness pipe; the fixed wire harness tube is made of insulating light fiber materials; the outside of the fixed wire harness pipe is sleeved and clamped with a clamping wire harness pipe, a spiral groove is formed in the clamping wire harness pipe, and the other wire harness body is spirally wound on the clamping wire harness pipe; the connecting chuck is inserted at one end of the fixed wire harness tube and is positioned at the clamping part for clamping the wire harness tube; the plug is clamped and installed at the other end of the fixed wire harness through a cavity rubber ring;
when the wire harness fixing device works, when the wire harness body needs to be collected, the connecting clamp is firstly detached from the wire harness body, meanwhile, the connecting clamp is inserted into the fixed wire harness pipe, and the connecting clamp is fixed through the baffle; spirally winding a part of the disassembled wire harness body in a spiral groove of the fixed wire harness pipe, and overlapping the end part of the disassembled wire harness body on the side surface of the end part of the fixed wire harness pipe; the clamping wire harness is sleeved in the wound fixed wire harness pipe, the rest un-wound wire harness body positioned at the end part of the fixed wire harness pipe is spirally wound in the spiral groove of the clamping wire harness pipe, the winding initial position is wound from the clamping end part of the fixed wire harness pipe and the clamping wire harness pipe, a plug connector on the wire harness body is conveniently inserted into a cavity rubber ring arranged at the other end of the fixed wire harness pipe, and the wire harness body is overlapped, wound and collected, so that the collecting speed of the wire harness body is improved, meanwhile, the space range occupied by the collected wire harness body can be reduced through the matching of the arranged fixed wire harness pipe and the clamping wire harness pipe, and further, an experimenter can directly prevent the collected experimental wire harness from being pinched in a test box, and the phenomenon that the existing wire harness collecting device is overlarge when the experimental harness is collected is effectively prevented, thereby causing the phenomenon that the operators are inconvenient to carry; meanwhile, the cavity rubber ring can protect the plug connector, and the phenomenon that the plug connector is exposed outside for a long time to cause abrasion is prevented, so that the accuracy of an experiment is influenced.
Preferably, the end part of the wire harness body is provided with an insulating rubber internal thread sleeve, and a soft metal conductive column is arranged in the insulating rubber internal thread sleeve; the soft metal conductive column is connected with an electric wire inside the wire harness body; the end part of the handle of the connecting chuck is provided with a rubber soft threaded sleeve, and the rubber soft threaded sleeve is internally provided with an inserting hole; the inserting hole is matched with the soft metal conductive column in an inserting manner; when the connecting clamp is in work, when the connecting clamp and the wiring harness body need to be connected, the soft metal conductive column arranged on the wiring harness body is inserted into the inserting hole, then the insulating rubber internal thread sleeve is rotated to be in threaded connection with the movable rubber soft thread sleeve, and further the connecting clamp and the wiring harness body are in threaded soft connection, so that the connecting stability of the wiring harness body and the connecting clamp is improved, meanwhile, the wiring harness body can conveniently replace connecting clamps of different shapes, the service life of the wiring harness body is prolonged, and meanwhile, the damaged connecting clamp can be conveniently replaced; connect chuck and pencil body simultaneously and carry out screw thread flexible coupling, conveniently separately install the pencil body at fixed pencil intraductally, prevent that the tip of pencil body from frequently inserting fixed pencil intraductally, lead to the insulating layer of the junction of pencil body and connection chuck to take place damaged phenomenon and then influence the safety experiment of pencil body.
Preferably, the upper clamping block and the lower clamping block of the connecting chuck are directly provided with an elastic metal layer, and the inner wall of the elastic metal layer is provided with a wrapping convex ball; when the device to be tested needs to be clamped by the clamping block connected with the chuck in the working process, an operator can stretch the elastic metal layer when opening the clamping block, the stretched elastic metal layer and the wrapped convex ball can be wrapped and clamped on the detection column to be tested, the connection stability of the connection chuck on the detection column is improved, and the phenomenon that the connection chuck is separated from the detection column when a non-operator pulls or collides the wiring harness body is prevented.
Preferably, the outer circular surface of the clamping wire harness pipe is provided with a guide groove, and the end part of the clamping wire harness pipe is provided with a clamping groove; the clamping groove is positioned at the clamping connection part of the clamping wire harness pipe and the fixed wire harness pipe; during operation, when the pencil body twines on block pencil pipe, earlier in the pencil body card goes into the guide way, block to the block inslot along the guide way, and then on block pencil pipe with pencil body spiral winding, the stability of the line of receiving of block pencil pipe to the pencil body has not only been improved, prevent simultaneously when the pencil body from the mouth of pipe department winding of block pencil pipe, the bayonet joint that leads to the pencil body can not the block insert in the cavity rubber intra-annular, and then influence the winding stability of pencil body and block pencil pipe, influence simultaneously the pleasing to the eye of the line of receiving of pencil body.
Preferably, the end part of the fixed wire harness pipe is provided with a rubber U-shaped mounting block, a clamping opening of the rubber U-shaped mounting block is arranged obliquely inwards, and a wire harness body is clamped and mounted in a clamping groove of the rubber U-shaped mounting block; the inner wall of the end part of the clamping binding pipe is provided with a U-shaped clamping block, and the U-shaped clamping block is extruded and sleeved on the outer wall of the rubber U-shaped mounting block; after the wire harness body positioned at the connecting chuck is spirally wound on the fixed wire harness pipe, an operator can clamp the end part of the wire harness body into the clamping groove of the rubber U-shaped mounting block and clamp the insulating rubber inner thread sleeve into the other rubber U-shaped mounting block, when the wire harness pipe is required to be clamped on the end part of the wire harness fixed pipe, the U-shaped clamping block is aligned with the rubber U-shaped mounting block, the clamping wire harness pipe is slowly sleeved in the fixed wire harness pipe, the U-shaped clamping block can be clamped on the outer wall of the rubber U-shaped mounting block, the U-shaped clamping block can be tightly pressed and clamped on the outer wall of the rubber U-shaped mounting block along with the continuous movement of the clamping wire harness pipe, so that the clamping wire harness pipe is stably connected with the fixed wire harness pipe, and the wire harness body can be stably clamped and connected, and the wire harness body can be stably wound on the fixed wire harness pipe, the phenomenon that the elastic restoring force of the wire harness body causes the wire harness body to be separated from the fixed wire harness pipe is prevented.
Preferably, an expansion cavity is formed in the rubber U-shaped mounting block and is communicated with the cavity rubber ring through an air guide pipe; a corrugated convex layer is arranged on the inner wall of the rubber U-shaped mounting block; when the wire harness clamping device works, when the plug connector is extruded and inserted into the cavity rubber ring, gas inside the cavity rubber ring enters the expansion cavity through the gas guide pipe, the rubber U-shaped mounting block can expand along with the continuous entering of the gas in the expansion cavity, the expansion of the rubber U-shaped block not only increases the clamping and fixing effect on a wire harness body, but also increases the clamping and fixing effect on the U-shaped clamping block due to the expansion extrusion force of the rubber U-shaped mounting block, so that the stable clamping connection between the fixed wire harness pipe and the clamping wire harness pipe is increased, and the phenomenon that the clamping wire harness pipe is separated from the fixed wire harness pipe due to external vibration is effectively prevented, and the safe storage of the wire harness body is further influenced; the size of the cavity rubber ring is set according to the maximum expansion width of the expansion cavity.
The invention has the following beneficial effects:
1. according to the invention, through the matching of the fixed harness pipe and the clamping harness pipe, the occupied space range of the collected harness body can be reduced, so that an experimenter can directly prevent the collected experimental harness from being pinched in a test box, and the phenomenon that an operator is inconvenient to carry due to the fact that the harness collecting device is too large when the existing harness collecting device collects the experimental harness is effectively prevented; meanwhile, the cavity rubber ring can protect the plug connector, and the phenomenon that the plug connector is exposed outside for a long time to cause abrasion is prevented, so that the accuracy and the safety of an experiment are influenced.
2. The connection clamp head and the wiring harness body are in threaded soft connection, so that the connection stability of the wiring harness body and the connection clamp head is improved, and meanwhile, the wiring harness body can conveniently replace the connection clamp heads with different shapes; the service life of the wire harness body is prolonged, and meanwhile, the damaged connecting chuck is convenient to replace; connect chuck and pencil body simultaneously and carry out the screw thread flexible coupling, conveniently separately install the pencil body at fixed pencil intraductally, prevent that the tip of pencil body from frequently inserting fixed pencil intraductally, lead to the insulating layer of the junction of pencil body and connection chuck to take place damaged phenomenon and then influence the safety test of pencil body.
3. According to the invention, through the matching of the rubber U-shaped mounting block and the rubber U-shaped mounting block, the U-shaped clamping block can be tightly clamped on the outer wall of the rubber U-shaped mounting block in a pressing manner, so that the clamping wire harness pipe is stably connected with the fixed wire harness pipe, and meanwhile, the wire harness body can be stably clamped and stably connected, so that the wire harness body can be stably wound on the fixed wire harness pipe, and the phenomenon that the wire harness body is separated from the fixed wire harness pipe due to the elastic restoring force of the wire harness body is prevented.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is an assembly of the present invention, a fixed harness tube and a snap-fit harness tube;
FIG. 3 is a front cross-sectional view of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;
fig. 5 is an assembly view of the wire harness body and the connection clip of the present invention;
in the figure: the wire harness comprises a wire harness body 1, a connecting chuck 2, a plug 3, a fixed wire harness tube 4, a clamping wire harness tube 5, a guide groove 51, a clamping groove 52, a cavity rubber ring 6, an insulating rubber internal thread sleeve 7, a soft metal conductive column 8, a rubber soft thread sleeve 9, a plug hole 91, an elastic metal layer 10, a rubber U-shaped mounting block 11, an expansion cavity 111, a U-shaped clamping block 12 and an air guide tube 13.
Detailed Description
A test harness of a power transformer according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the test harness for a power transformer according to the present invention includes a harness body 1; one end of the wire harness body 1 is movably and flexibly connected with a connecting chuck 2, and the other end of the wire harness body 1 is connected with a plug-in connector 3; one part of the wire harness body 1 is spirally wound in a spiral groove formed in the fixed wire harness tube 4, and the middle position of the wire harness body 1 is fixed on the fixed wire harness tube 4; the fixed wire harness tube 4 is made of insulating light fiber materials; a clamping wire harness pipe 5 is sleeved and clamped outside the fixed wire harness pipe 4, a spiral groove is formed in the clamping wire harness pipe 5, and the other wire harness body 1 is spirally wound on the clamping wire harness pipe 5; the connecting chuck 2 is inserted at one end of the fixed wire harness tube 4, and the connecting chuck 2 is positioned at the clamping part of the clamping wire harness tube 5; the plug connector 3 is clamped and installed at the other end of the fixed wire harness through a cavity rubber ring 6;
when the wire harness fixing device works, when the wire harness body 1 needs to be collected, the connecting chuck 2 is firstly detached from the wire harness body 1, meanwhile, the connecting chuck 2 is inserted into the fixed wire harness pipe 4, and the connecting chuck 2 is fixed through the baffle; spirally winding a part of the disassembled wire harness body 1 in a spiral groove of the fixed wire harness pipe 4, and overlapping the end part of the disassembled wire harness body 1 on the side surface of the end part of the fixed wire harness pipe 4; the clamping harness tube 5 is sleeved in the wound fixed harness tube 4, the remaining un-wound harness body 1 positioned at the end part of the fixed harness tube 4 is spirally wound in the spiral groove of the clamping harness tube 5, the winding initial position is wound from the clamping end parts of the fixed harness tube 4 and the clamping harness tube 5, the plug-in connector 3 on the harness body 1 is conveniently inserted into the cavity rubber ring 6 arranged at the other end of the fixed harness tube 4, and then the harness body 1 is overlapped, wound and collected, the collecting speed of the harness body 1 is improved, meanwhile, the space range occupied by the collected harness body 1 can be reduced through the matching of the arranged fixed harness tube 4 and the clamping harness tube 5, and then the experimenter can directly prevent the collected experimental harness from being pinched in a test box, and the existing harness collecting device is effectively prevented from being pinched in the experiment, the phenomenon that an operator is inconvenient to carry due to the fact that the wire harness collecting device is too large; meanwhile, the cavity rubber ring 6 can protect the plug connector 3, and the phenomenon that the plug connector 3 is exposed outside for a long time to cause abrasion is prevented, so that the accuracy of an experiment is influenced.
As an embodiment of the present invention, an insulating rubber internal thread bushing 7 is provided at an end of the wire harness body 1, and a soft metal conductive column 8 is provided in the insulating rubber internal thread bushing 7; the soft metal conductive column 8 is connected with an electric wire inside the wire harness body 1; the end part of the handle of the connecting chuck 2 is provided with a rubber soft threaded sleeve 9, and the rubber soft threaded sleeve 9 is internally provided with a plug hole 91; the plug hole 91 is matched with the soft metal conductive column 8 in a plug way; when the connecting clamp 2 is required to be connected with the wiring harness body 1 during working, the soft metal conductive column 8 arranged on the wiring harness body 1 is inserted into the inserting hole 91, then the insulating rubber internal thread sleeve 7 is rotated to be in threaded connection with the movable rubber soft thread sleeve 9, and further the connecting clamp 2 and the wiring harness body 1 are in threaded soft connection, so that the connecting stability of the wiring harness body 1 and the connecting clamp 2 is improved, meanwhile, the wiring harness body 1 can conveniently replace the connecting clamps 2 in different shapes, the service life of the wiring harness body 1 is prolonged, and meanwhile, the damaged connecting clamp 2 can be conveniently replaced; connect chuck 2 and pencil body 1 simultaneously and carry out the screw thread flexible coupling, conveniently separately install pencil body 1 in fixed pencil pipe 4, prevent that the tip of pencil body 1 from frequently inserting fixed pencil pipe 4 in, lead to the insulating layer of the junction of pencil body 1 and connect chuck 2 to take place the phenomenon of damage and then influence the safety experiment of pencil body 1.
As an embodiment of the present invention, the upper and lower clamping blocks of the connecting clamp 2 are directly provided with an elastic metal layer 10, and a wrapping convex ball is arranged on the inner wall of the elastic metal layer 10; during operation, when the clamping block of the connection chuck 2 needs to clamp the device to be tested, an operator opens the clamping block, so that the elastic metal layer 10 is stretched, the stretched elastic metal layer 10 and the wrapped convex ball can be wrapped and clamped on the detection column to be tested, the connection stability of the connection chuck 2 to the detection column is improved, and the phenomenon that the connection chuck 2 is separated from the detection column when a non-operator pulls or collides the wiring harness body 1 is prevented.
As an embodiment of the present invention, a guide groove 51 is formed on an outer circumferential surface of the clamping harness pipe 5, and an clamping groove 52 is formed on an end portion of the clamping harness pipe 5; the clamping groove 52 is positioned at the clamping connection part of the clamping wire harness pipe 5 and the fixed wire harness pipe 4; during operation, when pencil body 1 twines on block pencil pipe 5, earlier in pencil body 1 card goes into the guide way 51, in block the card slot 52 along the guide way 51, and then on block pencil pipe 5 with pencil body 1 spiral winding, not only improved block pencil pipe 5 to the stability of receiving line of pencil body 1, prevent simultaneously that pencil body 1 from following the mouth of pipe department of block pencil pipe 5 winding, lead to in plug 3 of pencil body 1 can not the block insert cavity rubber ring 6, and then influence pencil body 1 and the winding stability of block pencil pipe 5, influence the pleasing to the eye of receiving line of pencil body 1 simultaneously.
As an embodiment of the present invention, a rubber U-shaped mounting block 11 is mounted at an end of the fixed harness tube 4, and a fastening opening of the rubber U-shaped mounting block 11 is disposed obliquely inward, and a harness body 1 is fastened and mounted in a fastening groove 52 of the rubber U-shaped mounting block 11; a U-shaped clamping block 12 is arranged on the inner wall of the end part of the clamping binding pipe 5, and the U-shaped clamping block 12 is extruded and sleeved on the outer wall of the rubber U-shaped mounting block 11; after the wire harness body 1 positioned at the connecting chuck 2 is spirally wound on the fixed wire harness tube 4, an operator can clamp the end part of the wire harness body 1 into the clamping groove 52 of the rubber U-shaped mounting block 11 and clamp the insulating rubber internal thread sleeve 7 into the other rubber U-shaped mounting block 11, when the wire harness tube 5 needs to be clamped on the end part of the wire harness fixed tube, the U-shaped clamping block 12 is aligned with the rubber U-shaped mounting block 11, the clamping wire harness tube 5 is slowly sleeved in the fixed wire harness tube 4, meanwhile, the U-shaped clamping block 12 can be clamped on the outer wall of the rubber U-shaped mounting block 11, along with the continuous movement of the clamping wire harness tube 5, the U-shaped clamping block 12 can be tightly pressed and clamped on the outer wall of the rubber U-shaped mounting block 11, so that the clamping wire harness tube 5 is stably connected with the fixed wire harness tube 4, and can be stably connected with the wire harness body 1, make pencil body 1 can stably twine on fixed pencil pipe 4, prevent that the elastic restoring force of pencil body 1 from leading to the phenomenon that pencil body 1 breaks away from fixed pencil pipe 4.
As an embodiment of the invention, an expansion cavity 111 is formed in the rubber U-shaped mounting block 11, and the expansion cavity 111 is communicated with the cavity rubber ring 6 through an air duct 13; a corrugated convex layer is arranged on the inner wall of the rubber U-shaped mounting block 11; when the wire harness clamping device works, when the plug connector 3 is extruded and inserted into the cavity rubber ring 6, gas inside the cavity rubber ring 6 enters the expansion cavity 111 through the gas guide pipe 13, the rubber U-shaped mounting block 11 can expand along with the continuous entering of the gas in the expansion cavity 111, the expansion of the rubber U-shaped block not only increases the clamping and fixing effect on the wire harness body 1, but also increases the clamping and fixing effect between the expansion extrusion force of the rubber U-shaped mounting block 11 and the U-shaped clamping block 12, so that the stable clamping connection between the fixed wire harness tube 4 and the clamping wire harness tube 5 is increased, the phenomenon that the clamping wire harness tube 5 is separated from the fixed wire harness tube 4 due to external vibration is effectively prevented, and the safe storage of the wire harness body 1 is further influenced; the size of the cavity rubber ring 6 is set according to the maximum expansion width of the expansion cavity 111.
The specific working process is as follows:
when the wire harness fixing device works, when the wire harness body 1 needs to be collected, the connecting chuck 2 is firstly detached from the wire harness body 1, meanwhile, the connecting chuck 2 is inserted into the fixed wire harness pipe 4, and the connecting chuck 2 is fixed through the baffle; spirally winding a part of the disassembled wire harness body 1 in a spiral groove of the fixed wire harness pipe 4, and overlapping the end part of the disassembled wire harness body 1 on the side surface of the end part of the fixed wire harness pipe 4; sleeving the clamping wire harness pipe 5 in the wound fixed wire harness pipe 4, spirally winding the remaining un-wound wire harness body 1 positioned at the end part of the fixed wire harness pipe 4 in a spiral groove of the clamping wire harness pipe 5, and winding the initial winding position from the clamping end parts of the fixed wire harness pipe 4 and the clamping wire harness pipe 5, so that the plug-in connector 3 on the wire harness body 1 can be conveniently inserted into a cavity rubber ring 6 arranged at the other end of the fixed wire harness pipe 4, and then the wire harness body 1 is overlapped, wound and collected; when the wire harness body 1 needs to be used, the clamping wire harness pipe 5 can be taken down from the fixed wire harness pipe 4 by operating the steps in the reverse direction.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A test harness for a power transformer includes a harness body (1); the method is characterized in that: one end of the wire harness body (1) is movably and flexibly connected with a connecting chuck (2), and the other end of the wire harness body (1) is connected with a plug connector (3); one part of the wire harness body (1) is spirally wound in a spiral groove formed in the fixed wire harness tube (4), and the middle position of the wire harness body (1) is fixed on the fixed wire harness tube (4); the fixed wire harness tube (4) is made of insulating light fiber materials; a clamping wire harness pipe (5) is sleeved and clamped outside the fixed wire harness pipe (4), a spiral groove is formed in the clamping wire harness pipe (5), and the other wire harness body (1) is spirally wound on the clamping wire harness pipe (5); the connecting clamp (2) is inserted into one end of the fixed wire harness tube (4), and the connecting clamp (2) is positioned at the clamping part of the clamping wire harness tube (5); the plug connector (3) is clamped and installed at the other end of the fixed wire harness through the cavity rubber ring (6).
2. A test harness for a power transformer according to claim 1, characterised in that: an insulating rubber internal thread sleeve (7) is arranged at the end part of the wire harness body (1), and a soft metal conductive column (8) is arranged in the insulating rubber internal thread sleeve (7); the soft metal conductive column (8) is connected with an electric wire inside the wire harness body (1); a rubber soft threaded sleeve (9) is arranged at the end part of the handle of the connecting chuck (2), and a plug hole (91) is formed in the rubber soft threaded sleeve (9); the plug hole (91) is matched with the soft metal conductive column (8) in a plug way.
3. A test harness for a power transformer according to claim 2, characterised in that: the upper clamping block and the lower clamping block of the connecting chuck (2) are directly provided with an elastic metal layer (10), and a wrapping convex ball is arranged on the inner wall of the elastic metal layer (10).
4. A test harness for a power transformer according to claim 1, characterised in that: a guide groove (51) is formed in the outer circular surface of the clamping wire harness pipe (5), and a clamping groove (52) is formed in the end portion of the clamping wire harness pipe (5); the clamping groove (52) is positioned at the clamping connection part of the clamping wire harness pipe (5) and the fixed wire harness pipe (4).
5. A test harness for a power transformer according to claim 4, characterised in that: a rubber U-shaped mounting block (11) is mounted at the end part of the fixed wire harness pipe (4), a clamping opening of the rubber U-shaped mounting block (11) is obliquely and inwards arranged, and a wire harness body (1) is clamped and mounted in a clamping groove (52) of the rubber U-shaped mounting block (11); the U-shaped clamping block (12) is arranged on the inner wall of the end part of the clamping binding pipe (5), and the U-shaped clamping block (12) is extruded and sleeved on the outer wall of the rubber U-shaped mounting block (11).
6. A test harness for a power transformer according to claim 5, characterised in that: an expansion cavity (111) is formed in the rubber U-shaped mounting block (11), and the expansion cavity (111) is communicated with the cavity rubber ring (6) through an air duct (13); the inner wall of the rubber U-shaped mounting block (11) is provided with a corrugated protruding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202375.1A CN111337776B (en) | 2020-03-20 | 2020-03-20 | Test wire harness of power transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202375.1A CN111337776B (en) | 2020-03-20 | 2020-03-20 | Test wire harness of power transformer |
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| CN111337776A true CN111337776A (en) | 2020-06-26 |
| CN111337776B CN111337776B (en) | 2022-05-17 |
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