CN206835795U - Irrigation sprinkler control box and irrigation sprinkler pylon - Google Patents

Irrigation sprinkler control box and irrigation sprinkler pylon Download PDF

Info

Publication number
CN206835795U
CN206835795U CN201720224074.2U CN201720224074U CN206835795U CN 206835795 U CN206835795 U CN 206835795U CN 201720224074 U CN201720224074 U CN 201720224074U CN 206835795 U CN206835795 U CN 206835795U
Authority
CN
China
Prior art keywords
control box
irrigation sprinkler
electromagnetic switch
aviation
discharge cock
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
CN201720224074.2U
Other languages
Chinese (zh)
Inventor
王志
聂献安
张泽斌
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.)
Dalian Ruicheng Electric Control Equipment Co Ltd
Dalian Yinfan Agricultural Irrigation Machine Manufacturing Co Ltd
Original Assignee
Dalian Ruicheng Electric Control Equipment Co Ltd
Dalian Yinfan Agricultural Irrigation Machine Manufacturing 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 Dalian Ruicheng Electric Control Equipment Co Ltd, Dalian Yinfan Agricultural Irrigation Machine Manufacturing Co Ltd filed Critical Dalian Ruicheng Electric Control Equipment Co Ltd
Priority to CN201720224074.2U priority Critical patent/CN206835795U/en
Application granted granted Critical
Publication of CN206835795U publication Critical patent/CN206835795U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion

Landscapes

  • Spray Control Apparatus (AREA)

Abstract

Irrigation sprinkler technical field is the utility model is related to, more particularly, to a kind of irrigation sprinkler control box and irrigation sprinkler pylon.The irrigation sprinkler control box includes control box;Controller and electromagnetic switch are provided with the control box, the electromagnetic switch is used to control the controller.The irrigation sprinkler control box and the electromagnetic switch of irrigation sprinkler pylon are without mechanical contact, completely without mechanical loss, ensure that long-term use does not have mechanical breakdown point.

Description

Irrigation sprinkler control box and irrigation sprinkler pylon
Technical field
Irrigation sprinkler technical field is the utility model is related to, more particularly, to a kind of irrigation sprinkler control box and irrigation sprinkler tower Frame.
Background technology
Existing irrigation sprinkler straightening control box is the technology of the eighties in last century, mainly using microswitch come control apparatus Opening and closing, coupled motor is loitered, reach adjustment irrigation sprinkler it is each across keep a straight line.
However, the irrigation sprinkler straightening control box of prior art is also equipped with following defect:
First, as shown in figure 1, the switch of the irrigation sprinkler straightening control box is microswitch 600, due to the longevity of microswitch 600 Life limitation, use are easy to failure after after a while, cause irrigation sprinkler to be shut down, and turn round across or even topple over, connect with microswitch 600 The action connect is mechanical type lever system, and long-term use causes irrigation sprinkler cisco unity malfunction due to mechanical breakdown.
2nd, because the first defect has become a common fault of irrigation sprinkler industry, therefore technical staff has been generally acknowledged that this Individual position is exactly to easily go wrong, and should safeguard that not only renewal part is wasted time and energy, it is necessary to inspect periodically renewal part in time, And replacement cost is high.
The information for being disclosed in the background section is merely intended to deepen the reason to general background technology of the present utility model Solution, and be not construed as recognizing or imply known to those skilled in the art existing of the information structure in any form Technology.
Utility model content
The utility model provides a kind of irrigation sprinkler control box and irrigation sprinkler pylon, can largely solve above-mentioned ask At least one problem in topic.
The purpose of this utility model is to provide a kind of irrigation sprinkler control box.
Second purpose of the present utility model is to provide a kind of irrigation sprinkler pylon.
On the one hand, irrigation sprinkler control box provided by the utility model, including control box;
Controller and electromagnetic switch are provided with the control box, the electromagnetic switch is used to control controller.
Further, the electromagnetic switch is two, and its outside adds discharge cock, the discharge cock and control respectively Device processed is connected, and each its corresponding discharge cock of electromagnetic switch is to be arranged in parallel.
Further, the electromagnetic switch is exposed independent from outside control box with the first induction end on discharge cock, its remaining part Divide and be arranged inside control box.
Further, the first induction end of the electromagnetic switch with discharge cock and thereon is arranged in control box Portion.
Further, the second induction end of the first induction end and track of the electromagnetic switch and discharge cock sets to close on Put.
Further, it is additionally provided with indicator lamp in the control box.
Further, the indicator lamp includes run indicator and malfunction indicator lamp, and the run indicator and failure refer to Show that lamp is connected with the controller.
Further, the first aviation socket and the second aviation socket are additionally provided with the control box, first aviation is inserted Seat is connected with power supply by aviation plug and across body cable, and second aviation socket passes through aviation plug and electricity with running motor Electric cable is connected.
Further, be additionally provided with the 3rd aviation socket in the control box, the 3rd aviation socket with it is next across control Box is connected by aviation plug with across body cable.
On the other hand, also a kind of irrigation sprinkler pylon of the utility model, including described irrigation sprinkler control box.
Compared with prior art, the utility model has the advantages that:
On the one hand, irrigation sprinkler control box of the present utility model includes control box;Controller and electricity are provided with the control box Magnetic switch, the electromagnetic switch are used to control the controller;The control box is respectively connected with power supply and running motor, is realized The conducting of circuit.The utility model completely removes original microswitch, this function is replaced with electromagnetic switch, due to electricity Magnetic switch is without mechanical contact, completely without mechanical loss, ensure that long-term use does not have mechanical breakdown point;If electromagnetic switch Opening and closing number in terms of 100,000 times, substantially discharged the possibility of damage in irrigation sprinkler life span, without often investigation and Maintenance, also save artificial.
On the other hand, irrigation sprinkler pylon provided by the utility model, it includes described irrigation sprinkler control box, therefore it has There are all advantages of irrigation sprinkler control box, just do not repeat herein.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that the irrigation sprinkler straightening referred in the utility model background technology controls the structural representation of control box;
Fig. 2 is the structural representation for the irrigation sprinkler control box that the utility model embodiment one provides;
Fig. 3 is the schematic diagram for the irrigation sprinkler control box that the utility model embodiment one based on Fig. 2 provides;
Fig. 4 is the schematic diagram for the controller that the utility model embodiment one based on Fig. 3 provides;
Fig. 5 is the circuit diagram of the electromagnetic switch that the utility model embodiment one based on Fig. 3 provides and discharge cock;
Fig. 6 is the original that multiple control box are connected in the irrigation sprinkler pylon that the utility model embodiment two based on Fig. 3 provides Reason figure.
Icon:100- control box;200- controllers;300- aviation plugs;400- power supplys;500- running motors;101- One aviation socket;The aviation sockets of 102- second;The aviation sockets of 103- the 3rd;104- electromagnetic switch;105- discharge cocks;106- is transported Row indicator lamp;107- malfunction indicator lamp;201- program controling modules;202- direction protection modules;203- safeguard protections and overload Protection module;204- drive modules;600- microswitches;Across the body cables of 700-;800- motor cables.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.
Embodiment one
As Figure 2-3, the irrigation sprinkler control box that the present embodiment provides, including:Control box 100;In the control box 100 Provided with controller 200 and electromagnetic switch 104, the electromagnetic switch 104 is used to control the controller 200.
In the present embodiment, electromagnetic switch 104, as the term suggests be exactly the switch with magnet control, that is, electromagnet with The combination of switch.Electromagnetic attraction is produced after electromagnet coil power, movable core pushes and pulls switch contact closure, so as to Connect institute's control circuit.Electromagnetic switch 104 is widely used in every profession and trade, most commonly the contactor of industrial circle.
It is pointed out that electromagnetic switch 104 is a kind of proximity switch, proximity switch is a kind of without entering with moving component Row it is mechanically direct contact and manipulable position switch, when object proximity switch sensitive surface to operating distance when, it is not necessary to Mechanical Contact and any pressure of application can make switch motion, so as to drive DC electric apparatus or be provided to computer (plc) device Control instruction.Proximity switch is kind of a switch-type sensor (i.e. noncontacting switch), its existing travel switch, microswitch 600 Characteristic, while there are sensing capabilities, and reliable in action, stable performance, frequency response is fast, application life length, strong antijamming capability Deng and there is waterproof, shockproof, corrosion-resistant.Product has inductance type, condenser type, Hall-type, cross, straight flow pattern.Proximity switch Also known as contactless proximity switch, it is preferable electronic switch quantity sensor.When the induction region of metal detection body proximity switch, open Closing just can be contactless, no pressure, no-spark, sends electrical command rapidly, accurate response goes out position and the stroke of motion, i.e., In general Stroke Control is used in, its positioning precision, operating frequency, service life, the convenience of mounting and adjusting and to severe ring The applicable ability in border, it is that common mechanical formula travel switch institute is incomparable.It is widely used in lathe, metallurgy, chemical industry, light The industry such as spinning and printing.Spacing, counting, location control and automatic protection link etc. can be used as in automatic control system.
In the present embodiment, original microswitch 600 is removed completely, this function electromagnetic switch 104 is replaced, by It is without mechanical contact in electromagnetic switch 104, completely without mechanical loss, ensure that long-term use does not have mechanical breakdown point;If The opening and closing number of electromagnetic switch 104 has substantially discharged the possibility of damage in irrigation sprinkler life span in terms of 100,000 times, without Often investigation and maintenance, also save artificial.
Specifically, each structure of the irrigation sprinkler control box provided below for the present embodiment elaborates:
In the present embodiment, as shown in figure 5, the electromagnetic switch 104 is two, and its outside adds respectively and controller 200 connected discharge cocks 105, each electromagnetic switch 104 are to be arranged in parallel with corresponding discharge cock 105.
It is pointed out that added two electromagnetic switch 104 to be used as discharge cock 105 again in the outside of electromagnetic switch 104, and Electromagnetic switch 104 and corresponding discharge cock 105 is are arranged in parallel, when normal work, electromagnetic switch 104 and discharge cock 105 two-way are both turned on, once because outside cause causes two failures of electromagnetic switch 104 of centre, the discharge cock 105 in outside Start, irrigation sprinkler is stopped.
The first embodiment of the present embodiment, the electromagnetic switch 104 and the first induction end on discharge cock 105 (being not shown on figure) is exposed independent from outside control box 100, and remainder is arranged inside control box 100.
The another embodiment of the present embodiment, first sense of the electromagnetic switch 104 with discharge cock 105 and thereon It should hold and be arranged inside control box 100.
It is pointed out that due to the work of electromagnet of electromagnetic switch 104, four switch the control box 100 that can be placed on In, it is only necessary to expose the first induction end (can also all be enclosed in control box 100), can thus save mechanical type lever System, completely eliminate the possibility that mechanical breakdown occurs.
In addition, the electromagnetic switch 104 and the first induction end of discharge cock 105 and the second of track (being not shown on figure) Induction end (being not shown on figure) is to close on setting.
In the present embodiment, indicator lamp is additionally provided with the control box 100.Indicator lamp includes run indicator 106 and failure Indicator lamp 107, the run indicator 106 and malfunction indicator lamp 107 are connected with the controller 200.
It is pointed out that having filled two indicator lamps in each control box 100, run indicator 106 represents normal Work, malfunction indicator lamp 107 represent failure.So manually search trouble point when can directly find break down across The indicator lamp of body, it is easy to discharge failure rapidly, due to no indicator lamp, searching worker when failure is wanted will climb up former irrigation sprinkler Pylon is gone for pylon one by one, is taken time and effort.
In the present embodiment, as shown in fig. 6, being additionally provided with the first aviation socket 101 in the control box 100 and the second aviation is inserted Seat 102, first aviation socket 101 is connected with power supply 400 by aviation plug 300 and across body cable 700, second boat Dummy receptacle 102 is connected with running motor 500 by aviation plug 300 and motor cable 800.
In addition, being additionally provided with the 3rd aviation socket 103 in the control box, the 3rd aviation socket 103 is inserted by aviation First 300 and across body cable 700 with it is next across control box 100 be connected and for drive it is next across control box 100.
Wherein, input at the first aviation socket 101, is output end at the second aviation socket 102, the 3rd aviation socket End is extended at 103.
It is pointed out that in the both sides of control box 100 and the first aviation socket 101, the second aviation are installed separately below The aviation socket 103 of socket 102 and the 3rd, the inlet wire of respectively across body cable 700, the outlet of motor cable 800 and across body The outlet of cable 700.
It may also be noted that the first aviation socket 101, the second aviation socket 102 and the 3rd aviation socket 103 are distinguished Its corresponding aviation plug 300 is correspondingly arranged.
It may also be noted that irrigation sprinkler can directly connect across body cable 700 or motor when installing with aviation plug 300 Cable 800, it can thus remove the work of professional electrician from, simplify workflow, anyone can complete to spray The appliance wiring work of machine, and ensure to malfunction.
In the present embodiment, as shown in Figure 3-4, the controller 200 includes what is be connected with described program control module 201 Direction protection module 202, safeguard protection and overload protection module 203 and drive module 204;Wherein, direction protection module 202, Powered using external power supply 400, be connected with next across control box 100, phase sequence and direction for Irrigation Machine running motor Protection;Drive module 204, powered using external power supply 400, be connected with running motor 500, for driving Irrigation Machine running motor 500;Safeguard protection and overload protection module 203, run indicator 106 and malfunction indicator lamp 107 are controlled, using external power supply 400 power supplies, for the safeguard protection for machine equipment of spraying and the overload protection of running motor 500;Program controling module 201, quite In central processing unit, powered using external power supply 400, the programme-control for Irrigation Machine walking state.
It is pointed out that due to program controling module 201, direction protection module 202, safeguard protection and overload protection mould Block 203 and the concrete structure of drive module 204 are disclosed as prior art, are not just repeated herein.
Embodiment two
On the basis of embodiment one, the present embodiment provides a kind of irrigation sprinkler pylon, including multiple described irrigation sprinkler controls Box processed.
In the present embodiment, the 3rd aviation socket 103 of multiple irrigation sprinkler control box passes through aviation plug 300 and across body electricity Cable 700 is sequentially connected, and power supply 400 is connected with multiple controllers 200 respectively.
It is pointed out that as shown in fig. 6, the present embodiment provides a kind of irrigation sprinkler pylon, including the sprinkling irrigation described in three Machine control box, the 3rd aviation socket 103 of three irrigation sprinkler control box by aviation plug 300 and across body cable 700 successively It is connected, and power supply 400 is connected with three controllers 200 respectively, realizes a power supply 400 and is powered to three control box 100.
It may also be noted that depending on the pylon quantity that the quantity of control box 100 in irrigation sprinkler pylon controls as needed, Herein by way of example only, just do not repeat herein.
It is pointed out that the irrigation sprinkler pylon that the present embodiment provides, it includes described irrigation sprinkler control box, therefore its All advantages with irrigation sprinkler control box, are not just repeated herein, in addition, the multiple controls of irrigation sprinkler pylon provided by the utility model Box 100 processed is connected, and can control the walking of more irrigation sprinklers simultaneously, easy to operate.
It may also be noted that the irrigation sprinkler pylon that the present embodiment provides, the structure such as including pylon, its general configuration is Through as prior art in alternative document (such as Application No. CN201520482412.3 patent center pivot sprinkling machine Span tower carriage) it is disclosed, just do not repeat herein.
The course of work of the present utility model is:
First, when electromagnetic switch 104 and discharge cock 105 the first induction end and track the second induction end it is certain away from When from the range of, electromagnetic switch 104 and discharge cock 105 are triggered.
2nd, the first aviation socket 101, the second aviation socket 102 and the 3rd aviation socket 103 pass through aviation plug respectively 300 with power supply 400, running motor 500 and it is next be connected across control box 100, realize circuit turn-on.
3rd, direction protection module 202, safeguard protection and overload protection module 203 and drive module 204 pass through program respectively Control module 201 realizes phase sequence and direction protection, the safeguard protection for machine equipment of spraying and running motor 500 to irrigation sprinkler Overload protection and driving running motor 500.
4th, during irrigation sprinkler traveling, when irrigation sprinkler breaks down, malfunction indicator lamp 107 is bright, prompts event Barrier;When irrigation sprinkler is normally walked, run indicator 106 is bright, prompts normal operation.
5th, when the first induction end of electromagnetic switch 104 and discharge cock 105 leaves the second induction end of track certain When beyond distance range, electromagnetic switch 104 and discharge cock 105 disconnect, and irrigation sprinkler is stopped.
Finally it should be noted that:Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System;Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand:It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (9)

  1. A kind of 1. irrigation sprinkler control box, it is characterised in that including:Control box;
    Controller and electromagnetic switch are provided with the control box, the electromagnetic switch is used to control the controller;
    The electromagnetic switch is two, and its outside adds discharge cock respectively, and the discharge cock is connected with controller, each Its corresponding discharge cock of electromagnetic switch is to be arranged in parallel.
  2. 2. irrigation sprinkler control box according to claim 1, it is characterised in that the on the electromagnetic switch and discharge cock One induction end is exposed independent from outside control box, and remainder is arranged inside control box.
  3. 3. irrigation sprinkler control box according to claim 1, it is characterised in that the electromagnetic switch and discharge cock and its On the first induction end be arranged inside control box.
  4. 4. the irrigation sprinkler control box according to Claims 2 or 3, it is characterised in that the electromagnetic switch and discharge cock First induction end and the second induction end of track are to close on setting.
  5. 5. irrigation sprinkler control box according to claim 1, it is characterised in that be additionally provided with indicator lamp in the control box.
  6. 6. irrigation sprinkler control box according to claim 5, it is characterised in that the indicator lamp includes run indicator and event Hinder indicator lamp, the run indicator and malfunction indicator lamp are connected with the controller.
  7. 7. irrigation sprinkler control box according to claim 1, it is characterised in that the first aviation is additionally provided with the control box and is inserted Seat and the second aviation socket, first aviation socket are connected with power supply by aviation plug and across body cable, second boat Dummy receptacle is connected with running motor by aviation plug and motor cable.
  8. 8. irrigation sprinkler control box according to claim 7, it is characterised in that the 3rd aviation is additionally provided with the control box and is inserted Seat, the 3rd aviation socket are connected with next across control box by aviation plug and across body cable.
  9. 9. a kind of irrigation sprinkler pylon, it is characterised in that including the irrigation sprinkler control box described in claim any one of 1-8.
CN201720224074.2U 2017-03-08 2017-03-08 Irrigation sprinkler control box and irrigation sprinkler pylon Expired - Fee Related CN206835795U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720224074.2U CN206835795U (en) 2017-03-08 2017-03-08 Irrigation sprinkler control box and irrigation sprinkler pylon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720224074.2U CN206835795U (en) 2017-03-08 2017-03-08 Irrigation sprinkler control box and irrigation sprinkler pylon

Publications (1)

Publication Number Publication Date
CN206835795U true CN206835795U (en) 2018-01-05

Family

ID=60790473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720224074.2U Expired - Fee Related CN206835795U (en) 2017-03-08 2017-03-08 Irrigation sprinkler control box and irrigation sprinkler pylon

Country Status (1)

Country Link
CN (1) CN206835795U (en)

Similar Documents

Publication Publication Date Title
CN204570911U (en) Power station maintenance collecting well drainage control system
CN105835031A (en) Inspection robot for distribution room
CN106532904A (en) Double bus-powered PT secondary voltage switching circuit and protection circuit thereof
CN201413941Y (en) Transformer intelligent air-cooling control cabinet
CN203404016U (en) Head cover drainage intelligent control system of hydropower station
CN104578430A (en) Online monitoring device for circuit breaker operating mechanism
CN206835795U (en) Irrigation sprinkler control box and irrigation sprinkler pylon
CN206525275U (en) Irrigation sprinkler pylon straightening tower box and irrigation sprinkler pylon
CN110159824A (en) A kind of multifunctional motor-driven switch valve controller
CN202120803U (en) Moving contact vertical moving type high pressure isolation switch used for moving contact position detection
CN106356236B (en) A kind of open air mast switch knife-switch anti-error operation device and method
CN205630604U (en) Robot is patrolled and examined to electricity distribution room
CN104332332B (en) Interlocked control system for electric grounding switch
CN203445507U (en) Brush generator set integrated intelligent control screen
CN210072434U (en) Heater centralized control system
CN106718660A (en) Irrigation sprinkler pylon straightening tower box and irrigation sprinkler pylon
CN206117293U (en) Each other is equipped with control circuit industrial furnace fan dual supply converter
CN101944445A (en) Switching appliance for AC circuit
CN201365140Y (en) Feeder line switch control module for nuclear power station electric power plant
CN208804306U (en) A kind of grouping centralized-control type valve control case that the operated pneumatic valve for engineering of water treatment controls
CN203086108U (en) Novel high-voltage-side protection box for mining explosion-proof mobile substation
CN206274333U (en) The voltage monitoring system of switch cubicle
CN205680610U (en) Intelligent vacuum circuit breaker on a kind of post
CN206195339U (en) Intelligence circuit breaker closing coils protection device
CN110658780A (en) PLC control system of circuit breaker secondary circuit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180105