CN113300574A - Power module detection system and detection method of cascaded high-voltage frequency converter - Google Patents
Power module detection system and detection method of cascaded high-voltage frequency converter Download PDFInfo
- Publication number
- CN113300574A CN113300574A CN202110585539.8A CN202110585539A CN113300574A CN 113300574 A CN113300574 A CN 113300574A CN 202110585539 A CN202110585539 A CN 202110585539A CN 113300574 A CN113300574 A CN 113300574A
- Authority
- CN
- China
- Prior art keywords
- voltage
- fixedly connected
- detection
- main body
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/12—Kinds or types of circular or polygonal cross-section with a single end flange (e.g. with a conical end flange); formed with one end of greater diameter than the barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/26—Arrangements for preventing slipping of winding
-
- 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
-
- 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
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/22—Tong testers acting as secondary windings of current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a power module detection system and a detection method of a cascade high-voltage frequency converter, which comprise a detection main body, a display screen embedded at the top of the detection main body, a voltage interface fixed at the top of the detection main body and a current interface fixed at the right side of the detection main body, wherein the top of the detection main body is provided with a key area, and a voltage plug is installed inside the voltage interface. This cascade connection formula high-voltage inverter's power module detecting system and detection method, through the setting of pencil positioning mechanism, can be quick carry out the rolling to current test line and voltage test line, can replace the cooperation of the former hair of magic and magic thorn hair, convenient to use, and can prevent effectively that the pencil overlength from causing the snapping phenomenon, through the setting of dust screen pulling positioning mechanism, conveniently carry out quick dismantlement and installation to the dust screen, only need stimulate the pull ring can, it is very convenient to use to can improve assembly efficiency.
Description
Technical Field
The invention relates to the technical field of frequency conversion equipment, in particular to a power module detection system and a detection method of a cascade high-voltage frequency converter.
Background
The frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of a power semiconductor device. With the rapid development of modern power electronic technology and microelectronic technology, high-voltage high-power variable-frequency speed regulation devices are continuously mature, and the high-voltage problem which is difficult to solve originally is solved well in recent years by device series connection or unit series connection. The cascade high-voltage frequency converter can realize high-voltage output by adopting a plurality of power module units in a cascade connection mode, and the input side adopts the phase-shifting step-down transformer, so that harmonic pollution to a power grid can be effectively eliminated, and the cascade high-voltage frequency converter has higher efficiency, lower harmonic and less electromagnetic interference emission. One particularly important advantage of this is that it allows modular design, which allows automatic exit from the system in case of failure of one of the unit modules, while the remaining unit modules can still continue to operate to keep the motor running. Obviously, what kind of unit modules are adopted by the cascaded high-voltage frequency converter to cascade is crucial to the performance of the high-voltage frequency converter.
Be CN213023371U a power unit detection device for high-voltage inverter according to patent publication, including detecting main part, display screen, voltage interface and current test line, the outside that detects the main part is provided with insulation system, and the bottom mounting that ties and take one side has the original hair of magic, the top of tying and taking the opposite side is fixed with the magic thorn, this a power unit detection device for high-voltage inverter, be convenient for carry out the bunch arrangement to the test line, improved holistic function, but this a power unit detection device for high-voltage inverter still has following not enoughly:
(1) the magic raw hair and the magic bristles are used for bunching the test wire, so that the magic raw hair and the magic bristles are easy to remove after a long time, and the use effect is poor;
(2) the heat dissipation of the internal elements of the detection main body is inconvenient;
(3) generally, it is dustproof to dispel the heat through the dust screen, but the dust screen is generally fixed to be set up, and is inconvenient to dismantle the clearance fast to the dust screen.
Therefore, the present invention provides a power module detection system and a detection method for a cascaded high-voltage inverter to solve the above mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a power module detection system and a detection method of a cascade high-voltage frequency converter, which solve the problems that magic furs and magic bristles are used for bunching a test wire for a long time, the magic furs and the magic bristles are easy to remove, and the use effect is poor; the heat dissipation of the internal elements of the detection main body is inconvenient; generally, dispel the heat dustproof through the dust screen, but the dust screen is generally fixed to be set up, and inconvenient dismantles the problem of clearance fast to the dust screen.
In order to achieve the purpose, the invention is realized by the following technical scheme: a power module detection system of a cascaded high-voltage frequency converter comprises a detection main body, a display screen embedded at the top of the detection main body, a voltage interface fixed at the top of the detection main body, and a current interface fixed at the right side of the detection main body, wherein a key area is arranged at the top of the detection main body, a voltage plug is arranged in the voltage interface, a voltage test line is fixedly connected at the top end of the voltage plug, a voltage clamp is fixedly connected at one end of the voltage test line, a current plug is arranged in the current interface, a current test line is fixedly connected at the right end of the current plug, a current clamp is fixedly connected at one end of the current test line, harness positioning mechanisms are arranged in front and rear of the detection main body, a rectangular through groove is formed in the front of the detection main body in a penetrating manner, and a dust screen is embedded, the back fixedly connected with waterproof ventilative net of dust screen, be provided with dust screen pulling positioning mechanism in the detection main part.
Pencil positioning mechanism is including fixing the positive winding rod in detection main part, the spacing dish of one end fixedly connected with of winding rod, the top fixedly connected with rectangular block on spacing dish surface, the surface of rectangular block is rotated through the pivot and is connected with hollow sleeve, hollow sleeve's inner wall sliding connection has spacing inserted bar, the fixed surface of spacing inserted bar is connected with the poker rod, the bottom fixedly connected with extrusion spring of hollow sleeve inner wall, the top of extrusion spring and the bottom fixed connection of spacing inserted bar, the front of detecting the main part is seted up the spacing jack with spacing inserted bar looks adaptation, the positive fixedly connected with extension spring that resets of spacing dish, the one end of extension spring that resets is connected with hollow sleeve's fixed surface.
Preferably, dust screen pulling positioning mechanism is including seting up the mounting groove in the logical inslot wall both sides of rectangle, two the equal fixedly connected with baffle of inner wall of mounting groove, two the equal sliding connection of inner wall of mounting groove has the slider.
Preferably, the bottom of the sliding block is fixedly connected with a positioning rod, the two sides of the dustproof net are provided with positioning holes matched with the positioning rods, and the two positioning rods are fixedly connected with pressure springs at the ends far away from each other.
Preferably, the two ends of the pressure springs, which are far away from each other, are fixedly connected with the inner sides of the two partition plates respectively, and the inner walls of the two pressure springs are fixedly connected with guide pulleys.
Preferably, the two locating rods are fixedly connected with pull ropes at the ends far away from each other, and one ends of the pull ropes sequentially penetrate through the pressure spring and the partition plate and are wound on the surface of the guide pulley.
Preferably, the inside of the detection main body is provided with a folding rope groove matched with the pull rope, the top of the detection main body is provided with a cylindrical groove, and the inner wall of the cylindrical groove is connected with a sliding ring in a sliding manner.
Preferably, the inner wall of the sliding ring is fixedly connected with a pull rod, the surface of the pull rod is fixedly connected with one ends of the two pull ropes, the top end of the pull rod is fixedly connected with a pull ring, and the top and the bottom of the inner wall of the mounting groove are fixedly connected with check blocks.
Preferably, the four corners of the detection main body are fixedly connected with rubber corner protectors, the bottom of the detection main body is fixedly connected with a graphene heat-conducting plate, and the bottom of the graphene heat-conducting plate is fixedly connected with radiating fins.
The invention also discloses a detection method of the power module detection system of the cascade high-voltage frequency converter, which specifically comprises the following steps:
s1, during detection, the detection main body is taken to a designated position, when the power unit of the high-voltage frequency converter needs to be detected, a voltage test wire is inserted into a voltage interface through a voltage plug, a voltage clamp is clamped on the voltage wire of the high-voltage frequency converter to test voltage, a current plug is inserted into a current interface, a current is clamped on the current wire of the high-voltage frequency converter to test current, a display screen can display data detected by the current and the voltage, and the data of the power unit of the high-voltage frequency converter is calculated according to the detection result of the current and the voltage;
s2, after detection is completed, when a current test wire needs to be wound, the current test wire is wound on the surface of a winding rod, after the current test wire is completely wound, the hollow sleeve is rotated, meanwhile, the poke rod is pressed, when the position-limiting inserted rod and the position-limiting insertion hole are positioned on the same horizontal line, the moving rod is loosened, under the elastic action of the extrusion spring, the position-limiting inserted rod slides outwards and is matched and clamped with the position-limiting insertion hole, and therefore the current test wire wound on the surface of the winding rod is limited;
s3, when the dust screen needs to be disassembled and cleaned, the pull ring is pulled upwards, and then the pull ring drives the two pull ropes to move, so that the two positioning rods are separated from the two positioning holes respectively, and then the dust screen can be taken out;
s4, after the dust screen is cleaned, when the dust screen needs to be installed again, the operation is the same as that in the step S3, the dust screen is placed into the rectangular through groove, the dust screen is limited through the stop block, then the pull ring is loosened, and under the elastic action of the two pressure springs, the two positioning rods are reset, are clamped with the two positioning holes in a matched mode, and installation of the dust screen is completed.
Preferably, the compression spring in step S4 is a compression spring.
Advantageous effects
The invention provides a power module detection system and a detection method of a cascade high-voltage frequency converter. Compared with the prior art, the method has the following beneficial effects:
(1) the wire harness positioning mechanisms are arranged in front of and behind the detection main body, each wire harness positioning mechanism comprises a wire winding rod fixed on the front face of the detection main body, one end of each wire winding rod is fixedly connected with a limiting disc, a rectangular block is fixedly connected above the surface of each limiting disc, the surface of each rectangular block is rotatably connected with a hollow sleeve through a rotating shaft, the inner wall of each hollow sleeve is slidably connected with a limiting inserted rod, the surface of each limiting inserted rod is fixedly connected with a poking rod, the bottom of the inner wall of each hollow sleeve is fixedly connected with an extrusion spring, the top end of each extrusion spring is fixedly connected with the bottom end of each limiting inserted rod, the front face of the detection main body is provided with a limiting jack matched with each limiting inserted rod, the front face of each limiting disc is fixedly connected with a reset tension spring, and one end of each reset tension spring is fixedly, through pencil positioning mechanism's setting, can be quick carry out the rolling to electric current test wire and voltage test wire, can replace the cooperation of the former hair of magic and magic thorn hair, convenient to use, and can prevent effectively that the pencil overlength from causing the phenomenon of breaking.
(2) This cascade high-voltage inverter's power module detecting system and detection method, through the mounting groove of seting up in the logical groove inner wall both sides of rectangle at dustproof network pulling positioning mechanism, the equal fixedly connected with baffle of inner wall of two mounting grooves, the equal sliding connection of inner wall of two mounting grooves has the slider, the equal fixedly connected with locating lever in bottom of two sliders, the locating hole with locating lever looks adaptation is all seted up to the both sides of dustproof network, through the logical groove of rectangle, the dustproof network, the setting of waterproof ventilative net, be convenient for carry out dirt-proof in detecting the main part, can also waterproof to detecting the main part, multiple functional, and through the setting of dustproof network pulling positioning mechanism, the convenience is dismantled fast and is installed the dustproof network, only need stimulate the pull ring can, it is very convenient to use, thereby assembly efficiency can be improved.
(3) The power module detection system and the detection method of the cascading high-voltage frequency converter are characterized in that rubber corner protectors are fixedly connected to four corners of a detection main body, a graphene heat conduction plate is fixedly connected to the bottom of the detection main body, heat dissipation fins are fixedly connected to the bottom of the graphene heat conduction plate, the detection main body is conveniently buffered and protected through the arrangement of the rubber corner protectors, and the dissipation of heat inside the detection main body is further accelerated through the arrangement of the graphene heat conduction plate and the heat dissipation fins.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a perspective view of a partial structure of the wire harness positioning mechanism of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 4 is a perspective view of a partial structure of the inspection body according to the present invention;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 4;
FIG. 6 is a front sectional view of a partial structure of the inspection body according to the present invention;
FIG. 7 is an enlarged view of a portion of the invention at C of FIG. 6;
FIG. 8 is an enlarged view of a portion of the invention shown in FIG. 6 at D;
FIG. 9 is a perspective cross-sectional view of the hollow sleeve of the present invention;
fig. 10 is a perspective view of the dust screen structure of the present invention.
In the figure: 1-detection main body, 2-display screen, 3-voltage interface, 4-current interface, 5-key area, 6-voltage plug, 7-voltage test wire, 8-wiring harness positioning mechanism, 801-winding rod, 802-limit disc, 803-rectangular block, 804-hollow sleeve, 805-limit inserted rod, 806-poke rod, 807-extrusion spring, 808-limit jack, 809-reset tension spring, 9-dustproof net pulling positioning mechanism, 901-installation groove, 902-partition plate, 903-slide block, 904-positioning rod, 905-positioning hole, 906-pressure spring, 907-guide pulley, 908-pull rope, 909-folding rope groove, 910-cylindrical groove, 911-slide ring, 912-pull rod, 909-pull rod, 913-pull ring, 914-stop block, 10-voltage clamp, 11-current plug, 12-current test wire, 13-current clamp, 14-rectangular through groove, 15-dustproof net, 16-waterproof breathable net, 17-rubber corner protector and 18-graphene heat-conducting plate.
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.
Referring to fig. 1-10, the present invention provides a technical solution: a power module detection system of a cascade high-voltage frequency converter comprises a detection main body 1, a display screen 2 embedded at the top of the detection main body 1, a voltage interface 3 fixed at the top of the detection main body 1, and a current interface 4 fixed at the right side of the detection main body 1, wherein a key area 5 is arranged at the top of the detection main body 1, a voltage plug 6 is arranged in the voltage interface 3, a voltage test line 7 is fixedly connected at the top end of the voltage plug, a voltage clamp 10 is fixedly connected at one end of the voltage test line 7, a current plug 11 is arranged in the current interface 4, a current test line 12 is fixedly connected at the right end of the current plug 11, a current clamp 13 is fixedly connected at one end of the current test line 12, wire harness positioning mechanisms 8 are arranged at the front and the rear of the detection main body 1, a rectangular through groove 14 is formed in the front of the detection main body 1, and a dustproof net 15 is embedded in the inner wall of the rectangular through groove 14, the dustproof heat dissipation device is used for dustproof heat dissipation, the waterproof breathable net 16 is fixedly connected to the back face of the dustproof net 15, waterproof performance is achieved, the breathable function is achieved, and the dustproof net pulling and positioning mechanism 9 is arranged on the detection main body 1.
In the embodiment of the invention, the wire harness positioning mechanism 8 comprises a wire winding rod 801 fixed on the front surface of the detection main body 1, one end of the wire winding rod 801 is fixedly connected with a limiting disc 802, a rectangular block 803 is fixedly connected above the surface of the limiting disc 802, the surface of the rectangular block 803 is rotatably connected with a hollow sleeve 804 through a rotating shaft, the inner wall of the hollow sleeve 804 is slidably connected with a limiting insertion rod 805, the surface of the limiting insertion rod 805 is fixedly connected with a poking rod 806, the bottom of the inner wall of the hollow sleeve 804 is fixedly connected with an extrusion spring 807 which is a compression spring, the top end of the extrusion spring 807 is fixedly connected with the bottom end of the limiting insertion rod 805, the front surface of the detection main body 1 is provided with a limiting insertion hole 808 matched with the limiting insertion rod 805, the front surface of the limiting disc 802 is fixedly connected with a reset tension spring 809 for pulling the hollow sleeve 804 to reset, and one end of the reset tension spring 809 is fixedly connected with the surface of the hollow sleeve 804.
In the embodiment of the present invention, the dust screen pulling and positioning mechanism 9 includes mounting grooves 901 formed on both sides of the inner wall of the rectangular through groove 14, partition boards 902 are fixedly connected to the inner walls of the two mounting grooves 901, and sliders 903 are slidably connected to the inner walls of the two mounting grooves 901.
In the embodiment of the invention, the bottoms of the two sliding blocks 903 are fixedly connected with positioning rods 904, two sides of the dust screen 15 are respectively provided with positioning holes 905 matched with the positioning rods 904, and one ends of the two positioning rods 904 far away from each other are fixedly connected with pressure springs 906.
In the embodiment of the invention, the ends of the two pressure springs 906 far away from each other are respectively fixedly connected with the inner sides of the two partition plates 902, and the inner walls of the two pressure springs 906 are both fixedly connected with the guide pulleys 907, so that the guide function on the pull rope 908 is realized, and the friction of the pull rope 908 is reduced.
In the embodiment of the invention, the ends of the two positioning rods 904 far away from each other are fixedly connected with pull ropes 908, and one ends of the pull ropes 908 sequentially penetrate through the pressure spring 906 and the partition plate 902 and are wound on the surface of the guide pulley 907.
In the embodiment of the invention, the detection main body 1 is internally provided with a folded rope groove 909 matched with the pull rope 908, the top of the detection main body 1 is provided with a cylindrical groove 910, and the inner wall of the cylindrical groove 910 is connected with a slip ring 911 in a sliding manner.
In the embodiment of the invention, the inner wall of the slip ring 911 is fixedly connected with a pull rod 912, the surface of the pull rod 912 is fixedly connected with one end of each of the two pull ropes 908, the top end of the pull rod 912 is fixedly connected with a pull ring 913, and the top and the bottom of the inner wall of the mounting groove 901 are fixedly connected with a stop dog 914.
In the embodiment of the invention, the four corners of the detection main body 1 are fixedly connected with rubber corner protectors 17, which have a protection buffering effect, the bottom of the detection main body 1 is fixedly connected with a graphene heat conduction plate 18 and is made of graphene materials, the graphene has excellent optical, electrical and mechanical characteristics, has important application prospects in the aspects of materials science, micro-nano processing, energy, biomedicine, drug transfer and the like, is considered as a future revolutionary material, and has super-strong heat conduction performance, and the bottom of the graphene heat conduction plate 18 is fixedly connected with heat dissipation fins which are matched with the graphene heat conduction plate 18, so that the heat dissipation of the detection main body 1 can be realized.
The invention also discloses a detection method of the power module detection system of the cascade high-voltage frequency converter, which specifically comprises the following steps:
s1, during detection, the detection main body 1 is taken to a designated position, when a power unit of the high-voltage frequency converter needs to be detected, a voltage test wire 7 is inserted into a voltage interface 3 through a voltage plug 6, a voltage clamp 10 is clamped on a voltage wire of the high-voltage frequency converter to test voltage, a current plug 11 is inserted into a current interface 4, a current clamp 13 is clamped on a current wire of the high-voltage frequency converter to test current, a display screen 2 can display data detected by the current and the voltage, and the data of the power unit of the high-voltage frequency converter is calculated according to detection results of the current and the voltage;
s2, after detection is finished, when the current test wire 12 needs to be wound, the current test wire 12 is wound on the surface of a winding rod 801, after the current test wire 12 is completely wound, the hollow sleeve 804 is rotated, meanwhile, the poke rod 806 is pressed, when the poke rod 806 is located at the same horizontal line as the limiting insertion hole 808, the poke rod 806 is loosened, under the elastic action of the extrusion spring 807, the limiting insertion rod 805 slides outwards and is matched and clamped with the limiting insertion hole 808, and therefore limiting of the current test wire 12 wound on the surface of the winding rod 801 is finished;
s3, when the dust screen 15 needs to be disassembled and cleaned, the pull ring 913 is pulled upwards, and the pull rod 912 drives the two pull ropes 908 to move, so that the two positioning rods 904 are separated from the two positioning holes 905 respectively, and then the dust screen 15 can be taken out;
s4, after the dust screen 15 is cleaned, when the dust screen needs to be installed again, the operation is the same as that in the step S3, the dust screen 15 is placed in the rectangular through groove 14, the dust screen 15 is limited through the stop block 914, then the pull ring 913 is loosened, and under the elastic action of the two pressure springs 906, the two positioning rods 904 are reset, are matched with the two positioning holes 905 to be clamped, and the installation of the dust screen 15 is completed.
In the embodiment of the present invention, the pressure spring 906 in step S4 is a compression spring.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a power module detecting system of cascade high-voltage inverter, includes detection subject (1), inlays display screen (2) of establishing at detection subject (1) top, fixes voltage interface (3) at detection subject (1) top, fixes current interface (4) on detection subject (1) right side, its characterized in that: the detection device is characterized in that a key area (5) is arranged at the top of the detection main body (1), a voltage plug (6) is arranged inside the voltage interface (3), a voltage test line (7) is fixedly connected to the top end of the voltage plug, a voltage clamp (10) is fixedly connected to one end of the voltage test line (7), a current plug (11) is arranged inside the current interface (4), a current test line (12) is fixedly connected to the right end of the current plug (11), a current clamp (13) is fixedly connected to one end of the current test line (12), wire harness positioning mechanisms (8) are arranged in front of and behind the detection main body (1), a rectangular through groove (14) is formed in the front of the detection main body (1) in a penetrating manner, a dust screen (15) is embedded in the inner wall of the rectangular through groove (14), and a waterproof breathable net (16) is fixedly connected to the back of the dust screen (15), a dustproof net pulling and positioning mechanism (9) is arranged on the detection main body (1);
the wire harness positioning mechanism (8) comprises a wire winding rod (801) fixed on the front face of the detection main body (1), one end of the wire winding rod (801) is fixedly connected with a limiting disc (802), a rectangular block (803) is fixedly connected above the surface of the limiting disc (802), the surface of the rectangular block (803) is rotatably connected with a hollow sleeve (804) through a rotating shaft, the inner wall of the hollow sleeve (804) is slidably connected with a limiting insertion rod (805), the surface of the limiting insertion rod (805) is fixedly connected with a poking rod (806), the bottom of the inner wall of the hollow sleeve (804) is fixedly connected with an extrusion spring (807), the top end of the extrusion spring (807) is fixedly connected with the bottom end of the limiting insertion rod (805), the front face of the detection main body (1) is provided with a limiting insertion hole (808) matched with the limiting insertion rod (805), and the front face of the limiting disc (802) is fixedly connected with a reset tension spring (809), one end of the reset tension spring (809) is fixedly connected with the surface of the hollow sleeve (804).
2. The system for detecting the power module of the cascaded high-voltage frequency converter according to claim 1, wherein: the dustproof net pulling and positioning mechanism (9) comprises mounting grooves (901) formed in two sides of the inner wall of a rectangular through groove (14), partition plates (902) are fixedly connected to the inner walls of the two mounting grooves (901), and sliding blocks (903) are connected to the inner walls of the two mounting grooves (901) in a sliding mode.
3. The system of claim 2, wherein the power module detection system of the cascaded high-voltage frequency converter comprises: two equal fixedly connected with locating lever (904) in bottom of slider (903), locating hole (905) with locating lever (904) looks adaptation, two are all seted up to the both sides of dust screen (15) the equal fixedly connected with pressure spring (906) of one end that locating lever (904) kept away from each other.
4. The system of claim 3, wherein the power module detection system of the cascaded high-voltage frequency converter comprises: one ends, far away from each other, of the two pressure springs (906) are fixedly connected with the inner sides of the two partition plates (902) respectively, and guide pulleys (907) are fixedly connected to the inner walls of the two pressure springs (906).
5. The system of claim 3, wherein the power module detection system of the cascaded high-voltage frequency converter comprises: two the one end that locating lever (904) kept away from each other all fixedly connected with stay cord (908), the one end of stay cord (908) runs through pressure spring (906), baffle (902) in proper order and twines the surface of guide pulley (907).
6. The system for detecting the power module of the cascaded high-voltage frequency converter according to claim 1, wherein: the detection device is characterized in that a folded rope groove (909) matched with the pull rope (908) is formed in the detection main body (1), a cylindrical groove (910) is formed in the top of the detection main body (1), and a sliding ring (911) is connected to the inner wall of the cylindrical groove (910) in a sliding mode.
7. The system of claim 6, wherein the power module detection system of the cascaded high-voltage frequency converter comprises: the inner wall of the slip ring (911) is fixedly connected with a pull rod (912), the surface of the pull rod (912) is fixedly connected with one ends of two pull ropes (908), the top end of the pull rod (912) is fixedly connected with a pull ring (913), and the top and the bottom of the inner wall of the mounting groove (901) are fixedly connected with a stop block (914).
8. The system for detecting the power module of the cascaded high-voltage frequency converter according to claim 1, wherein: the all fixedly connected with rubber angle bead (17) of four corners of detection main part (1), the bottom fixedly connected with graphite alkene heat-conducting plate (18) of detection main part (1), the bottom fixedly connected with heat radiation fins of graphite alkene heat-conducting plate (18).
9. The power module detection system of a cascaded high voltage inverter of any one of claims 1 to 8, wherein: the detection method specifically comprises the following steps:
s1, during detection, the detection main body (1) is taken to a designated position, when a power unit of the high-voltage frequency converter needs to be detected, a voltage test wire (7) is inserted into a voltage interface (3) through a voltage plug (6), a voltage clamp (10) is clamped on the voltage wire of the high-voltage frequency converter to test voltage, a current plug (11) is inserted into a current interface (4), a current clamp (13) is clamped on the current wire of the high-voltage frequency converter to test current, a display screen (2) can display data detected by the current and the voltage, and the data of the power unit of the high-voltage frequency converter is calculated according to the detection result of the current and the voltage;
s2, after detection is finished, when a current test wire (12) needs to be wound, the current test wire (12) is wound on the surface of a winding rod (801), after the current test wire (12) is completely wound, a hollow sleeve (804) is rotated, meanwhile, a poke rod (806) is pressed, when a limit inserted rod (805) and a limit insertion hole (808) are located on the same horizontal line, the moving rod (806) is loosened, under the elastic action of an extrusion spring (807), the limit inserted rod (805) slides outwards and is matched and clamped with the limit insertion hole (808), and therefore the current test wire (12) wound on the surface of the winding rod (801) is limited;
s3, when the dust screen (15) needs to be disassembled and cleaned, the pull ring (913) is pulled upwards, and then the pull rod (912) drives the two pull ropes (908) to move, so that the two positioning rods (904) are separated from the two positioning holes (905) respectively, and then the dust screen (15) can be taken out;
s4, after the dust screen (15) is cleaned, when the dust screen needs to be installed again, the operation is the same as that in the step S3, the dust screen (15) is placed in the rectangular through groove (14), the dust screen (15) is limited through the stop block (914), then the pull ring (913) is loosened, under the elastic action of the two pressure springs (906), the two positioning rods (904) are reset, and then the positioning rods (905) are matched and clamped, and the installation of the dust screen (15) is completed.
10. The method for detecting a power module detecting system of a cascaded high voltage inverter as claimed in claim 9, wherein the compression spring (906) in the step S4 is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110585539.8A CN113300574B (en) | 2021-05-27 | 2021-05-27 | Power module detection system and detection method of cascaded high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110585539.8A CN113300574B (en) | 2021-05-27 | 2021-05-27 | Power module detection system and detection method of cascaded high-voltage frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113300574A true CN113300574A (en) | 2021-08-24 |
| CN113300574B CN113300574B (en) | 2022-04-22 |
Family
ID=77325543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110585539.8A Active CN113300574B (en) | 2021-05-27 | 2021-05-27 | Power module detection system and detection method of cascaded high-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113300574B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211123A (en) * | 2021-11-24 | 2022-03-22 | 浙江东尼电子股份有限公司 | Radium-shine mark device of beating of wafer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016859A (en) * | 1989-10-12 | 1991-05-21 | The Mead Corporation | Wiring harness installation accessory |
| US6612516B1 (en) * | 1991-01-16 | 2003-09-02 | H. Norman Clarkson | Method and apparatus for cable dispensing and placement |
| US6644582B1 (en) * | 2002-07-05 | 2003-11-11 | Sheng Hsin Liao | Cable reel with a positioning mechanism |
| CN208739018U (en) * | 2018-09-26 | 2019-04-12 | 山东联创高科自动化有限公司 | A kind of vector frequency converter of included single board testing system |
| CN210243578U (en) * | 2019-08-06 | 2020-04-03 | 康延云 | Ultrasonic detector for concrete |
| CN112659939A (en) * | 2021-01-15 | 2021-04-16 | 陈秋霖 | A high-efficient electric pile that fills for new energy automobile |
| CN213023371U (en) * | 2020-07-21 | 2021-04-20 | 中创清洁能源发展（沈阳）股份有限公司 | Power unit detection device for high-voltage frequency converter |
| CN112730630A (en) * | 2020-12-28 | 2021-04-30 | 无锡通测检测技术有限公司 | Metal welding part quality detection device and method |
| CN213212559U (en) * | 2020-11-16 | 2021-05-14 | 武汉特尔斯特汽车技术科技有限公司 | High-voltage test wire harness of automobile electric drive system |
-
2021
- 2021-05-27 CN CN202110585539.8A patent/CN113300574B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016859A (en) * | 1989-10-12 | 1991-05-21 | The Mead Corporation | Wiring harness installation accessory |
| US6612516B1 (en) * | 1991-01-16 | 2003-09-02 | H. Norman Clarkson | Method and apparatus for cable dispensing and placement |
| US6644582B1 (en) * | 2002-07-05 | 2003-11-11 | Sheng Hsin Liao | Cable reel with a positioning mechanism |
| CN208739018U (en) * | 2018-09-26 | 2019-04-12 | 山东联创高科自动化有限公司 | A kind of vector frequency converter of included single board testing system |
| CN210243578U (en) * | 2019-08-06 | 2020-04-03 | 康延云 | Ultrasonic detector for concrete |
| CN213023371U (en) * | 2020-07-21 | 2021-04-20 | 中创清洁能源发展（沈阳）股份有限公司 | Power unit detection device for high-voltage frequency converter |
| CN213212559U (en) * | 2020-11-16 | 2021-05-14 | 武汉特尔斯特汽车技术科技有限公司 | High-voltage test wire harness of automobile electric drive system |
| CN112730630A (en) * | 2020-12-28 | 2021-04-30 | 无锡通测检测技术有限公司 | Metal welding part quality detection device and method |
| CN112659939A (en) * | 2021-01-15 | 2021-04-16 | 陈秋霖 | A high-efficient electric pile that fills for new energy automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211123A (en) * | 2021-11-24 | 2022-03-22 | 浙江东尼电子股份有限公司 | Radium-shine mark device of beating of wafer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113300574B (en) | 2022-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112186546B (en) | High-low voltage power distribution cabinet with heat dissipation bunching function convenient to maintain | |
| CN113300574B (en) | Power module detection system and detection method of cascaded high-voltage frequency converter | |
| CN209592665U (en) | A kind of assemblied distribution | |
| CN210573149U (en) | Multimedia device with heat dissipation dustproof construction for classroom | |
| CN215929345U (en) | High-efficient heat dissipation lamps and lanterns | |
| CN211604064U (en) | Ventilation device for computer workstation | |
| CN210297014U (en) | Highly integrated acquisition control cabinet | |
| CN212381518U (en) | Totally enclosed converter | |
| CN216848059U (en) | High-low voltage switchgear monitoring device based on wireless sensor network | |
| CN215681594U (en) | Strutting arrangement for computer network convenient to use | |
| CN218300575U (en) | Transformer low-voltage cabinet of optimizing wiring | |
| CN211184666U (en) | Diesel generating set switch board | |
| CN215819103U (en) | Power management ic device | |
| CN218352111U (en) | Intensive enclosed bus duct capable of being rapidly assembled and disassembled | |
| CN219269400U (en) | Outdoor control box convenient to installation | |
| CN213125708U (en) | Motor casing convenient to it can dispel heat fast to be qualified for next round of competitions | |
| CN217642203U (en) | Safe type low-voltage cabinet | |
| CN215579938U (en) | Low-voltage wire outlet cabinet convenient for ventilation | |
| CN220913264U (en) | Arc fault detection device of photovoltaic inverter | |
| CN210958276U (en) | Photovoltaic microgrid is with high-efficient heat radiation structure of intelligent collection flow box | |
| CN219658957U (en) | Promote equipment of CBTC interference immunity ability | |
| CN220475563U (en) | Generator set controller with good stability | |
| CN220401873U (en) | Industrial Internet data acquisition gateway | |
| CN112860031B (en) | Computer hardware heat energy collecting and converting device | |
| CN218242722U (en) | Novel electric power outlet cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |