CN103353540B - A kind of proving installation measuring plate module for testing photovoltaic combiner box - Google Patents

A kind of proving installation measuring plate module for testing photovoltaic combiner box Download PDF

Info

Publication number
CN103353540B
CN103353540B CN201310262698.XA CN201310262698A CN103353540B CN 103353540 B CN103353540 B CN 103353540B CN 201310262698 A CN201310262698 A CN 201310262698A CN 103353540 B CN103353540 B CN 103353540B
Authority
CN
China
Prior art keywords
probe
plate module
input
terminal
wiring board
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.)
Expired - Fee Related
Application number
CN201310262698.XA
Other languages
Chinese (zh)
Other versions
CN103353540A (en
Inventor
李嘉
胡剑生
史恒晖
王旭昊
焦丽娜
王海明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Xuji Group Co Ltd
Xuchang Xuji Wind Power Technology Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xuji Group Co Ltd
Xuchang Xuji Wind Power Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Xuji Group Co Ltd, Xuchang Xuji Wind Power Technology Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201310262698.XA priority Critical patent/CN103353540B/en
Publication of CN103353540A publication Critical patent/CN103353540A/en
Application granted granted Critical
Publication of CN103353540B publication Critical patent/CN103353540B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Measuring Leads Or Probes (AREA)

Abstract

The invention discloses a kind of proving installation measuring plate module for testing photovoltaic combiner box, comprise base, base has the chute extended along the longitudinal direction, the rear end of chute has input wires unit, input wires unit comprises base-mounted input panel, input panel is vertically fitted with elasticity input probe, the rear end of each input probe is the terminals for being connected with input test line; The front end of chute has for the output connection unit corresponding with the output terminal subgroup measuring plate module, output connection unit comprises output wiring board, output wiring board is vertically fitted with elasticity and exports probe, each front end exporting probe is the terminals for being connected with output p-wire.This proving installation avoids the wiring carrying out repetition between p-wire and measurement plate module to be measured, operation of taking out stitches, and the problem of wrong line can not occur, and greatly enhances the testing efficiency measuring plate module.

Description

A kind of proving installation measuring plate module for testing photovoltaic combiner box
Technical field
The present invention relates to a kind of proving installation measuring plate module for testing photovoltaic combiner box.
Background technology
In solar photovoltaic generation system, photovoltaic cell identical to some, specification series connection is got up by photovoltaic combiner box, form photovoltaic tandem one by one, and then by some photovoltaic tandem parallel connection access header boxs, after converging in header box, by controller, DC power distribution cabinet, photovoltaic DC-to-AC converter, AC power distribution cabinet/AC distribution panel etc., support the use thus form complete photovoltaic generating system.
As the vitals of photovoltaic combiner box---measure plate module, its structure as shown in Figure 1, comprise printed board, the plate face of printed board is provided with 9 2P terminals, 9 each 2P terminals are divided into two groups, seven the 2P terminals wherein comprised in one group are arranged side by side in printed board input end and form input end subgroup, and two the 2P terminals comprised in another group are arranged side by side in printed board output terminal and form output terminal subgroup.In measurement plate module traditional test process, need a professional to carry out wiring and to take out stitches work, by p-wire one by one be connected on each 2P terminal, through actual measurement setting up time be about 5 minutes, setting up time is long, and often test one measurement plate module all wants rewiring, wastes time and energy; In addition, due to human factor, there is the phenomenon of wrong in wiring process unavoidably, if Timeliness coverage before powering on, only causes doing over again of wiring of taking out stitches, otherwise will cause the situation that printed board damages, risk is larger.
Summary of the invention
The object of this invention is to provide a kind of proving installation measuring plate module for testing photovoltaic combiner box, in order to solve the problem wasted time and energy that existing test mode adopts artificial wiring to cause.
The present invention adopts following technical scheme: a kind of proving installation measuring plate module for testing photovoltaic combiner box, comprise base, base has and to extend along the longitudinal direction, for for measure plate module printed board input end from front to back horizontally-guided insert chute, the rear end of chute has for the input wires unit corresponding with the input end subgroup measuring plate module, input wires unit comprises base-mounted, for the input panel that coordinate spacing with printed board block, input panel is vertically fitted with the elasticity coordinated for grafting corresponding to each input terminal and inputs probe, the rear end of each input probe is the terminals for being connected with input test line, the front end of chute has for the output connection unit corresponding with the output terminal subgroup measuring plate module, output connection unit be included in measure plate module insert time in order to dodge printed board and measurement plate module insert after the spacing output wiring board of anticreep is carried out to printed board, output wiring board is vertically fitted with the elasticity coordinated for grafting corresponding to each lead-out terminal and exports probe, each front end exporting probe is the terminals for being connected with output p-wire.
Described output wiring board is used for singly the connect output wiring board consistent with the quantity of lead-out terminal by quantity and forms, each output wiring board that singly connects is arranged on base respectively by rotary handle assembly, rotary handle assembly comprises and is installed in pan frontward end, to lead before and after output wiring board sliding plug the slide bar be rotatably assorted and be installed in and singly connect on the front end face of output wiring board is singly connect with each, gap is sheathed on the taper knob on corresponding slide bar, be fitted with in gap between taper knob with corresponding slide bar for singly connecing to corresponding the reseting pressuring spring that output wiring board applies elastic force backwards.
The terminals of described each probe stretch out each self-corresponding terminal block and extension spiral has been screwed set nut, and the middle part of each probe has the positive stop lug boss with the spacing cooperation of corresponding terminal block, the set nut that this positive stop lug boss is corresponding with it is arranged in the both sides of corresponding terminal block and cooperatively interacts to realize the fixing of corresponding probe.
Described each probe is arranged with more than one, top be pressed between positive stop lug boss with corresponding terminal block with the packing ring regulating probe tip to hang deep length.
Described input panel is connected by trip bolt and described base, and the hole that the corresponding trip bolt of confession on input panel passes be extend along the vertical direction, to regulate the elongated hole of probe height.
The outside of described each terminal block push up respectively be pressed with corresponding with each probe, by the terminals of a unit block formed that is connected successively before and after two external terminals, one of them external terminal of terminals of a unit block connects with the inserted terminal of corresponding probe, another external terminal is for connecting corresponding p-wire.
Adopt the proving installation of said structure, owing to utilizing the sliding groove structure on base, the printed board level of measurement plate module to be measured is inserted in chute, be convenient to the installation and removal of measurement plate module to be measured, and the two ends of chute are respectively equipped with input wires unit corresponding with the input end subgroup of measurement plate module to be measured and output terminal subgroup respectively and output connection unit, so each p-wire is connected to respectively in advance on the corresponding probe in each wiring units, avoid the wiring carrying out repetition between p-wire and measurement plate module to be measured, to take out stitches operation, the problem of wrong line can not be there is, thus prevent from causing scrapping of measurement plate module because of wrong line, the more important thing is, owing to avoiding repetition wiring, taking out stitches, greatly enhance the testing efficiency measuring plate module.
Accompanying drawing explanation
Fig. 1 is the structural representation of measurement plate module to be measured;
Fig. 2 is the using state figure of a kind of embodiment of the present invention;
Fig. 3 is the explosive view of the present invention in Fig. 2;
Fig. 4 is the constitutional diagram that the output wiring board in Fig. 2 is moved forward by working position;
Fig. 5 is that the output wiring board in Fig. 2 is in the constitutional diagram of dodging position;
Fig. 6 is the constitutional diagram that measurement plate module level to be measured is inserted;
Fig. 7 is output wiring board in Fig. 2 by the constitutional diagram of dodging position and moving forward;
Fig. 8 is the constitutional diagram that output wiring board in Fig. 2 is in working position.
Embodiment
The proving installation embodiment measuring plate module for testing photovoltaic combiner box of the present invention: as shown in figures 1-8, comprise base 1, base 1 has fore-and-aft direction extension, for the chute inserted for printed board 5 level measuring plate module, when measuring plate module insertion, the input end of its corresponding input end subgroup is inserted by the front port of chute, like this when measuring plate module and inserting completely, the input end subgroup measuring plate module is positioned at the rear end of chute, output terminal subgroup is positioned at the front end of chute, before base 1 is positioned at chute, rear end respectively correspondence is provided with output connection unit and input wires unit.
Wherein, input wires unit comprises the input panel 3 be fixed on by trip bolt 15 on base 1 rear end face, input panel 3 has and carries out the spacing effect of block to printed board 5, and input panel 3 is fitted with input probe 11 that left and right is arranged side by side from front to back.In the present embodiment, because input terminal and lead-out terminal are 2P terminal, each terminal has two spliced eyes, and therefore, input probe 11 has 14, and is divided into one group between two, and each group input probe is arranged with each input terminal 4 one_to_one corresponding respectively; The rear end of each input probe 11 stretches out input panel 3 and external part is terminals for connecting input test line, and the front end of input probe 11 is the needle end coordinated with input terminal 4 grafting.In the middle part of input probe 11, there is an annular stop boss, when inputting probe 11 and inserting on input panel 3 from front to back, positive stop lug boss plays spacing effect, in the rearward end of input probe, there is external thread simultaneously, and spiral has been screwed set nut 9 on it, rely on set nut 9 can be fixed on inputting probe 11 on input panel 3 with coordinating of positive stop lug boss like this.
Described output connection unit comprises and singly connects output wiring board 7 one to one with two lead-out terminals 6, each singly connecing output wiring board 7 is fitted with back to front about two output probes 12 that be arranged side by side, that coordinate with the corresponding grafting of corresponding lead-out terminal 6, in the present embodiment, the structure exporting probe 12 is consistent with the structure of input probe 11, its terminals are right back forward through singly connecing output wiring board 7, and export probe 12 and be fixed on each self-correspondingly singly to connect on output wiring board 7 by set nut equally.Inserted by the front port of chute owing to measuring plate module, in order to avoid each impact singly connecing output wiring board 7, in the present embodiment, the front end face of base 1 is vertically installed with about two spaced apart slide bars 13 arranged side by side, slide bar 13 is sleeve-like structure, slide bar 13 by plug-in mounting within it, be fixed on base in order to the lock-screw 16 be screwedly mounted on base 1.Two singly connect output wiring board 7 slip cap that leads along the longitudinal direction respectively and are contained on corresponding slide bar 7, each output wiring board 7 that singly connects also can rotate around the axis of respective corresponding slide bar 13 simultaneously, like this when singly connecing the output probe 12 on output wiring board 7 just in time with corresponding lead-out terminal 6 grafting, singly connect output wiring board 7 and be in working position, and when singly connecing output wiring board 7 and going to the inversion position contrary with during working position, just in time can avoid the front port of chute, the output wiring board 7 that singly connects now is in and dodges position.Each front end face singly connecing output wiring board 7 is installed with, gap is sheathed on taper knob 8 on corresponding slide bar 13, be fitted with for singly connecing to corresponding the reseting pressuring spring 14 that output wiring board 7 applies elastic force backwards in gap between taper knob 8 with corresponding slide bar 7, utilize the elastic reaction of reseting pressuring spring 14, printed board 5 top can be pressed in input panel and singly connect between output wiring board, can guarantee to export the grafting reliability of probe 12 and corresponding lead-out terminal 6 simultaneously; It should be noted, dodge in the process of position being gone to by working position, first should singly connect output wiring board 7 by exporting to rotate after probe 12 depart from corresponding lead-out terminal 6, above-mentioned slide bar 13, taper knob 8 and reseting pressuring spring 14 form rotary handle assembly jointly again.
When thermometrically plate module, because p-wire can be connected on each probe in advance, the wiring that this avoid repetition is taken out stitches operation, reduces the labour intensity of workman, the problem of wrong line can not be there is simultaneously, thus prevent from causing scrapping of measurement plate module because of wrong line.
As further optimization, the hole that the corresponding trip bolt 15 of confession on described input panel 3 passes is the elongated hole extended along the vertical direction, the height of input probe 11 can be adjusted like this by the upper-lower position of adjustment input panel 3, measure needs with the input terminal adapting to measure plate module differing heights, improve the usable range of proving installation.Meanwhile, select the taper knob 8 of differing heights, the height exporting probe can be adjusted too.
As further optimization, each probe is also arranged with the packing ring 10 be arranged between positive stop lug boss with corresponding terminal block, probe tip insertion depth can be regulated by the number adjusting packing ring 10, thus the terminal adapting to measure plate module different depth measures needs, improves the usable range of proving installation equally.
As further optimization, the outside of described each terminal block be respectively equipped with each input terminal 4 one to one, by the terminals of a unit block 2 formed that is connected successively before and after two external terminals, external terminal is similarly 2P terminal, two external terminals are fixed back-to-back by seccotine, by scolding tin by two-terminal corresponding pin short circuit, thus, one of them external terminal can crimp probe tails, another external terminal crimping p-wire, the short circuit that not only avoid adjacent p-wire also ensure that the dirigibility that p-wire is dismantled.Minimum spacing due to proving installation adjacent probe is 5.08mm, if p-wire directly uses fixture linking probe or is directly wrapped on probe all very easily cause the short circuit of p-wire the end of a thread, if be directly welded on probe by p-wire, cause probe and p-wire cannot remove from proving installation, if tissue damage then causes proving installation to use.Terminals of a unit block solves this problem cleverly, as long as guarantee that the center distance of each terminal is 5.08mm, just achieves test lead and docks with the perfection of probe.Are all insulation between wiring hole due to each terminal, therefore can ensure between p-wire the end of a thread can not short circuit, no matter for p-wire or for proving installation, because use terminals of a unit block is as bridge joint, dismantle very convenient.
The specific operation process of above-described embodiment is as follows:
1) as shown in Figure 4, pull forward two in the direction of arrows and singly connect output wiring board 7, this process need overcomes the elastic force of the reseting pressuring spring 14 in rotary handle cover;
2) as shown in Figure 5, rotate two in the direction of arrows and singly connect output wiring board 7 until dodge position, now the front port of chute gets out of the way;
3) as shown in Figure 6, in the direction of arrows the front port level of the printed board of measurement plate module to be measured by chute is inserted in chute backward;
4) as shown in Figure 7, after the module of version between two to be measured is inserted, each input terminal in printed board respectively with corresponding input probe 11 grafting, pull forward two in the direction of arrows and singly connect output wiring board 7, this process needs the elastic force overcoming reseting pressuring spring equally;
5) as shown in Figure 8, rotate in the other direction in the direction of arrows and singly connect output wiring board until the state shown in diagram, unclamp and singly connect terminal block, under the effect of reseting pressuring spring, each probe 12 that exports inserts in corresponding lead-out terminal, just can carry out test jobs afterwards.
In above-described embodiment, each terminal in measurement plate module to be measured is 2P terminal, therefore corresponding with each terminal number of probes should be two, in other embodiments, if each terminal in measurement plate module to be measured is 1P terminal, then accordingly, the number of probes corresponding with each terminal should be one, on the whole, the selection of number of probes is determined by the terminal shape in measurement plate module to be measured and quantity.
In other embodiments, also can not reseting pressuring spring be set, after output probe inserts lead-out terminal, screw is utilized to be fixed on base by singly connecing output wiring board, when measurement plate module to be measured slips into, screw is dismantled, going to singly connecing output wiring board the position can dodged and measure plate module afterwards, also can realize dodging and spacing effect.
Certainly in other embodiments, two output connection plate structures singly connecing output wiring board also can be as a whole, output wiring board adopts hinged mode to be arranged on base, and after output probe inserts lead-out terminal, utilize screw to be fixed on base by output wiring board, when measurement plate module to be measured slips into, screw is dismantled, afterwards overall output wiring board is gone to the position can dodged and measure plate module, also can realize dodging and spacing effect.

Claims (6)

1. measure the proving installation of plate module for testing photovoltaic combiner box for one kind, it is characterized in that: comprise base, base has and to extend along the longitudinal direction, for for measure plate module printed board input end from front to back horizontally-guided insert chute, the rear end of chute has for the input wires unit corresponding with the input end subgroup measuring plate module, input wires unit comprises base-mounted, for the input panel that coordinate spacing with printed board block, input panel is vertically fitted with the elasticity coordinated for grafting corresponding to each input terminal and inputs probe, the rear end of each input probe is the terminals for being connected with input test line, the front end of each input probe is the needle end for coordinating with each input terminal grafting, the front end of chute has for the output connection unit corresponding with the output terminal subgroup measuring plate module, output connection unit be included in measure plate module insert time in order to dodge printed board and measurement plate module insert after the spacing output wiring board of anticreep is carried out to printed board, output wiring board is vertically fitted with the elasticity coordinated for grafting corresponding to each lead-out terminal and exports probe, the front end of each output probe is the terminals for being connected with output p-wire, and each rear end exporting probe is the needle end for coordinating with each lead-out terminal grafting.
2. the proving installation measuring plate module for testing photovoltaic combiner box according to claim 1, it is characterized in that: described output wiring board is used for singly the connect output wiring board consistent with the quantity of lead-out terminal by quantity and forms, each output wiring board that singly connects is arranged on base respectively by rotary handle assembly, rotary handle assembly comprises and is installed in pan frontward end, to lead before and after output wiring board sliding plug the slide bar be rotatably assorted and be installed in and singly connect on the front end face of output wiring board is singly connect with each, gap is sheathed on the taper knob on corresponding slide bar, be fitted with in gap between taper knob with corresponding slide bar for singly connecing to corresponding the reseting pressuring spring that output wiring board applies elastic force backwards.
3. the proving installation measuring plate module for testing photovoltaic combiner box according to claim 1, it is characterized in that: the terminals of described each probe stretch out each self-corresponding terminal block and extension spiral has been screwed set nut, and the middle part of each probe has the positive stop lug boss with the spacing cooperation of corresponding terminal block, the set nut that this positive stop lug boss is corresponding with it is arranged in the both sides of corresponding terminal block and cooperatively interacts to realize the fixing of corresponding probe.
4. according to claim 3ly measuring the proving installation of plate module for testing photovoltaic combiner box, it is characterized in that: described each probe is arranged with more than one, top and is pressed between positive stop lug boss with corresponding terminal block with the packing ring regulating probe tip to hang deep length.
5. the proving installation measuring plate module for testing photovoltaic combiner box according to claim 1, it is characterized in that: described input panel is connected by trip bolt and described base, and the hole passed of the corresponding trip bolt of confession on input panel for extend along the vertical direction, to regulate the elongated hole of height residing for probe.
6. the proving installation measuring plate module for testing photovoltaic combiner box according to claim 1-5 any one, it is characterized in that: the outside of described each terminal block be respectively equipped with corresponding with each probe, by the terminals of a unit block formed that is connected successively before and after two external terminals, one of them external terminal of terminals of a unit block connects with the inserted terminal of corresponding probe, another external terminal is for connecting corresponding p-wire.
CN201310262698.XA 2013-06-27 2013-06-27 A kind of proving installation measuring plate module for testing photovoltaic combiner box Expired - Fee Related CN103353540B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310262698.XA CN103353540B (en) 2013-06-27 2013-06-27 A kind of proving installation measuring plate module for testing photovoltaic combiner box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310262698.XA CN103353540B (en) 2013-06-27 2013-06-27 A kind of proving installation measuring plate module for testing photovoltaic combiner box

Publications (2)

Publication Number Publication Date
CN103353540A CN103353540A (en) 2013-10-16
CN103353540B true CN103353540B (en) 2016-01-20

Family

ID=49309927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310262698.XA Expired - Fee Related CN103353540B (en) 2013-06-27 2013-06-27 A kind of proving installation measuring plate module for testing photovoltaic combiner box

Country Status (1)

Country Link
CN (1) CN103353540B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633936B (en) * 2013-11-30 2016-03-02 国家电网公司 A kind of photovoltaic header box automatic test system
CN105785192B (en) * 2016-04-18 2019-05-17 许继集团有限公司 A kind of test device encapsulating monitoring device for testing current divider
CN106093667B (en) * 2016-08-11 2023-07-07 许继集团有限公司 Automatic pairing test system of combiner box and test fixture thereof
CN109459593B (en) * 2018-11-27 2021-04-02 许继集团有限公司 Transfer tray and relay protection single board testing device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159274A (en) * 1990-02-27 1992-10-27 Atochem Device and methods for measuring the quality of contact between two electrical conductors
EP0633475A2 (en) * 1993-07-06 1995-01-11 GOSSEN-METRAWATT Gesellschaft mit beschränkter Haftung Interface for electric devices
JP2008070146A (en) * 2006-09-12 2008-03-27 Yokowo Co Ltd Socket for inspection
CN201917592U (en) * 2010-12-30 2011-08-03 中芯国际集成电路制造(上海)有限公司 Testing seat and testing system
CN202512139U (en) * 2011-12-20 2012-10-31 北京国电智深控制技术有限公司 Connection apparatus for testing clamp piece
CN102768916A (en) * 2012-06-27 2012-11-07 公牛集团有限公司 Rotary avoiding mechanical self-reset switch
CN102944752A (en) * 2012-11-26 2013-02-27 西安开容电子技术有限责任公司 Insertion loss testing system and method of filter
CN102998499A (en) * 2012-12-11 2013-03-27 上海市电力公司 Electric measuring instrument wiring combined device suitable for operation on pole

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159274A (en) * 1990-02-27 1992-10-27 Atochem Device and methods for measuring the quality of contact between two electrical conductors
EP0633475A2 (en) * 1993-07-06 1995-01-11 GOSSEN-METRAWATT Gesellschaft mit beschränkter Haftung Interface for electric devices
JP2008070146A (en) * 2006-09-12 2008-03-27 Yokowo Co Ltd Socket for inspection
CN201917592U (en) * 2010-12-30 2011-08-03 中芯国际集成电路制造(上海)有限公司 Testing seat and testing system
CN202512139U (en) * 2011-12-20 2012-10-31 北京国电智深控制技术有限公司 Connection apparatus for testing clamp piece
CN102768916A (en) * 2012-06-27 2012-11-07 公牛集团有限公司 Rotary avoiding mechanical self-reset switch
CN102944752A (en) * 2012-11-26 2013-02-27 西安开容电子技术有限责任公司 Insertion loss testing system and method of filter
CN102998499A (en) * 2012-12-11 2013-03-27 上海市电力公司 Electric measuring instrument wiring combined device suitable for operation on pole

Also Published As

Publication number Publication date
CN103353540A (en) 2013-10-16

Similar Documents

Publication Publication Date Title
CN103353540B (en) A kind of proving installation measuring plate module for testing photovoltaic combiner box
CN106872818B (en) Grid-connected performance testing system and method for light storage combined power generation device
CN105305960B (en) A kind of the connection in series-parallel mismatch loss rate test device and its test method of photovoltaic system
CN109188147A (en) A kind of charging equipment of electric automobile detection system
CN206194228U (en) Electric energy measurement analogue means
CN204044339U (en) A kind of LED lamp aging equipment
CN105785192A (en) Testing device for testing current divider encapsulation monitoring device
CN107942182A (en) A kind of charger automatic test machine
CN204028273U (en) A kind of pitch-controlled system heavy duty External cable test board
CN203732576U (en) Needle-type test clip for electrical measurement
CN202102059U (en) Power unit testing apparatus
CN210270066U (en) Maintenance platform for functional circuit board of online test equipment
CN204832265U (en) Following circuit breaker of 35KV and generating line loop resistance rapid survey termination
CN103852742A (en) Electroscope test bench
CN203216950U (en) Switching box special for testing power meter
CN208172211U (en) A kind of new-energy automobile testing device for power cells
CN202975220U (en) Universal wire and cable connector clip tester
CN208421000U (en) The electric energy meter mounting base of electric energy meter calibrating apparatus
CN202994831U (en) Brake pull rod withstand voltage test support
CN204903692U (en) Multicore cable wire size measuring device
CN216117792U (en) Insulation tester for measuring multiple channels
CN205665918U (en) Real device of instructing of electrician's electron
CN204287238U (en) A kind of light fixture test working plate
CN209927894U (en) Vertical rod type pluggable feeder device
CN204613384U (en) A kind of proving installation stopping the event of powering on for power information acquisition terminal

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20200627

CF01 Termination of patent right due to non-payment of annual fee