CN2692683Y

CN2692683Y - Intelligent phase sequence detector

Info

Publication number: CN2692683Y
Application number: CN 200420048612
Authority: CN
Inventors: 邵康华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-01
Filing date: 2004-04-01
Publication date: 2005-04-13
Anticipated expiration: 2014-04-01

Abstract

The utility model discloses an intelligent phase sequence detector, comprising a three-phase power supply sampling circuit, a single-purpose integrated package chip and two groups of detecting data displays. One of the groups displays the phase sequence of the current on-line detected power supply or the steering data of an electric motor, and the other group displays display the storage data of the last power supply phase detecting or the steering detecting of the electric motor. Before an electrician repairs power circuits, the electrician uses the utility model to detect the phase sequence of the power supply or the steering data of a motor. and then the detecting data are stored. After the repair is finished, before the electricity is conveyed, when the phase sequence is detected once again, two groups of detecting data are simultaneously displayed face to face. The observation is visual, accurate and clear. The utility model can effectively reduce the situation that the normal running of the equipment is affected, which is caused by that the electrician is easy to forget the phase sequence and falsely connects the phase sequence.

Description

Intellectual phase sequence detector

(1) invention field under

The utility model relates to a kind of phase sequence detector, specifically, relates to a kind of intellectual phase sequence detector.

(2) background technology

Existing phase sequence detector, normally by the three-phase supply sample circuit, integrated circuit, the electronic circuit that display device is formed, be contained in the portable plastic box body, three external detection lead-in wire connection terminals are arranged, external three lead-in wires, during use lead-in wire is connected on the three-phase supply, in order to detect power phase, the power supply phase shortage, detecting data is shown by LED, two groups of LED are arranged, wherein one group of three LED indicates in order to phase shortage, two to three LED of another group are used for showing the positive of phase sequence, anti-phase, as standing 3030 altogether, stand 3031 altogether, PR-2601, VC850, RT-850, RT-606, ST-855 etc., multi-functional in addition, not only can detect power phase, the phase shortage indication, can also detect turning to of motor, as RT608A, two groups of external detection lead terminals are arranged, and wherein one group is used for external lead wire and detects three-phase power supply phase sequence, and another group is used for external lead wire and is connected with motor, the detection motor turns to, three groups of LED are arranged, and except that one group of three LED indicated as phase shortage, other had two groups of LED in order to detect data presentation, one group of positive that is used for showing three-phase supply wherein, anti-phase, another group is used for showing the just commentaries on classics of motor, counter-rotating.

The electrician overhauls before the power circuit, use the phase sequence detector to detect power phase, and adopt notes or with the method for marking, recording detection data after service work is finished, detects phase sequence once more, detection data before detecting data and overhauling are compared, if inequality, will adjust, to reach and last identical phase sequence, if this electrician's inadvertent, forgotten or remembered wrongly last detection data, sent after the electricity, phase sequence is anti-phase, the reverse running of user's consumer, the equipment that will influence normally moves, even leads to a disaster, and brings loss to production.Said multi-functional phase sequence detector, when the detection motor turns to, three external lead wires are connected with a set of connections terminal wherein, will be with another set of connections terminal of lead-in wire changing-over, if the changing-over connection terminal of having forgotten to go between removes to detect power phase when detecting power phase, will damage detector, have, said phase sequence shows and motor turns to demonstration to separate again, and each shows the detection data with one group of LED, it is complicated that the detector panel seems, is inconvenient to discern.

(3) purpose

The purpose of this utility model provides a kind of intellectual phase sequence detector that memory function is arranged, described intellectual phase sequence detector, during online use, can show that not only current phase sequence detects data, can also show the phase sequence detection data that the last time stores when detecting phase sequence, multi-functional in this way phase sequence detector, when the detection motor turns to, not only can detect motor turns to, also can the store electricity motivation turn to data, and have only three external lead wire connection terminals, detect three-phase power supply phase sequence, the detection motor turns to and can use common external lead wire connection terminal, needn't changing-over go between, phase sequence shows and motor turns to the shared group display equipment of demonstration, and conversion shows that phase sequence detection data or motor turn to the detection data.

(4) technical scheme

To achieve these goals, the intellectual phase sequence detector of the utility model comprises three-phase supply sample circuit, integrated circuit and phase shortage indicator, detects data display equipment, it is characterized in that; Said detection data display equipment has increased by one group of detection of stored data display equipment, detecting data output end with ic chip is connected, in order to show the detection of stored data, increase a storage switch, be connected with the ic chip input end, in the online detection, press storage switch, can store the current detection data.Said detection of stored data display equipment is shown by double color luminotron.Said detection data, detection of stored data are shown by the electronics rotating disk that two groups of LED form respectively, positive just changes, oppositely counter-rotating, wherein one group shows the current detection data, another group shows last detection of stored data, two groups of LED do heart garden, same garden week respectively and arrange, and two groups of vertically entad alignment of LED are synchronous with two groups of LED rotations of phase time starting point.Said phase sequence detects and motor turns to the shared group display equipment of detection, when detecting phase sequence, be used for showing the display of the positive and negative phase of phase sequence, detecting just commentaries on classics, the counter-rotating of changing the demonstration motor when motor turns to, be used for showing the display of phase sequence detection of stored data, when the detection motor turns to, i.e. conversion shows that motor turns to the storage data.Said phase sequence detects with motor and turns to detection to adopt identical sample circuit and input circuit, shared one group of external lead wire connection terminal.The working power of the intellectual phase sequence detector of the utility model is used 1～2 joint 1.5V battery, through the DC-DC chip that boosts voltage is promoted to 5V.The electronics rotating disk that said demonstration detects data, detection of stored data is not limited to LED, also can be by two groups of rotating disk graphic presentations of liquid crystal display panels, wherein one group shows the current detection data, another group shows the detection of stored data, two groups of rotating disk figures are done heart garden, same garden week respectively and are arranged on described display screen, identical with two groups of rotating disk figures of phase time sense of rotation, the rotation starting point is synchronous.

(5) effect

The electrician is before the maintenance power circuit, use the intellectual phase sequence detector of the utility model to detect phase sequence or detect motor and turn to, detect data and be integrated the piece storage, after maintenance job is finished, carry before the electricity, when reusing the utility model and detecting phase sequence or motor and turn to, show current detection data and last detection of stored data, compare in two groups of detection data surface opposites, directly perceived, accurately, come into plain view, find mistake, in time adjust, so just can effectively reduce owing to be negligent of memory, wrong phase sequence, cause the reverse running of equipment, and the equipment that influences moves normally.The electrician is when installing or overhauling consumer replacing motor, the input end that connects motor earlier with three lead-in wires of the present utility model, the detection motor turns to, after data storage, detect power phase on the three-phase supply then again three lead-in wires are overlapped on, the grafting line end needn't be changed in the centre, detecting two groups of data surface opposites, back compares, intuitively, accurately, come into plain view, find phase sequence or turn to not right, in time give to adjust, promptly conveniently save trouble, accurate again, needn't worry that having forgotten to change inserting lead damages instrument, phase sequence detects data and motor steering detection data are share a group display equipment, the detector panel also seemed succinctly, and the working power of the intellectual phase sequence detector of the utility model is used 1～2 joint, 1.5 batteries, inexpensively easily purchases.

(6) description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a system architecture diagram of the present utility model

Fig. 2 is the circuit theory diagrams of the utility model embodiment 1

Fig. 3 is that the LED of embodiment 1 of the present utility model arranges synoptic diagram

Fig. 4 is the circuit theory diagrams of the utility model embodiment 2

Fig. 5 is that the LED of embodiment 2 of the present utility model arranges synoptic diagram

(7) embodiment

With reference to Fig. 1, three-phase supply obtains sampled signal through sample circuit and is input to special-purpose ic chip, special-purpose ic chip is handled signal, its phase shortage data output to the phase shortage indicator, and phase sequence detects data and outputs to the detection data display equipment, presses storage switch, the storage signal that obtains is input to special-purpose ic chip, ic chip is handled signal, and output detection of stored data are to the storage data display equipment, and the DC-DC booster circuit provides+the 5V direct supply for ic chip.

With reference to Fig. 2, three-phase supply and external lead wire connection terminal L1, L2, L3 connects, through resistance R 1, R2, R3 makes star connection, obtain zero potential, three-phase supply is through R4, R5, R6, ZD1, ZD2, the three-phase sampled signal that ZD3 obtains is input to 11 of special-purpose ic chip SKH-I respectively, 12,13 pin, 19,20,32 pin are by resistance R 16, R17, R18 connects positive potential, 22 pin are by resistance R 19, R20 obtains a reference potential, D33～D39 is a light emitting diode among the figure, R21～R27 is a current-limiting resistance, respectively with 6 of SKH-I, 7,8,9,4,15,16 pin connect, under the effect of SKH-I, if detecting is positive, 6 pin output high level is lighted luminotron D36, detection is anti-phase, 7 pin output high level is lighted luminotron D37, and AN is a storage switch, be connected with 10 pin, R8 is its pull-up resistor, D38, D39 is a double color luminotron, in the online detection, detect and be positive phase time, press storage switch AN, 8 pin output high level, D38 lights, show positive storage data, detect when being anti-phase, press AN, 9 pin output high level, D39 lights, show anti-phase storage data, through the detection data of storage, power down is not lost, up in next time online testing process, be updated when storing once more.Luminotron D33, D34, D35 are the phase shortage indicators, as the phase shortage indication, and every corresponding luminotron, in the online detection, as power supply end phase shortage, 4,15,16 pin output high level, D33, D34, D35 are lighted, and detect to the pairing luminotron of phase shortage and extinguish.IC1 is the DC-DC chip that boosts, and L, D40, C1 are its peripheral circuits, and power supply E is the 1.5V battery, and power supply, is promoted to 5V with voltage and is input to 10 pin by the DC-DC booster circuit through switch AK.The utility model embodiment is when detecting motor steering, the external lead wire of L1, L2, L3 is connected with three terminals of motor, use the hand rotating motor, the induction current that motor produces is input to L1, L2, L3, thereafter the course of work of circuit is identical during with the detection phase sequence with testing process, what only D36, D37 showed is the forward and backward data of motor, and what D38, D39 showed is motor forward and backward storage data.

With reference to Fig. 3, the arrangement synoptic diagram of the utility model embodiment 1 luminotron D33～D39, wherein D38, D39 are double color luminotrons.

With reference to Fig. 4, what the utility model embodiment 2 was different with Fig. 2 is to change the static demonstration of detection data into the electronics rotating disk dynamically to show, luminotron D1～D32 connects to 4 row, 4 row diode matrix, 6 of four lines and special-purpose ic chip SKH-II, 7,8,9 pin connect mutually, 4 alignments are through resistance R 9, R10, R11, R12, with 3,2,1,18 pin are connected, per two series connection in luminotron D1～16, cross-over connection is expert at, form on the point of crossing of row and detect data display equipment, per two series connection of luminotron D17～D32, be connected across on the ranks point of crossing, form the detection of stored data display equipment, two group display equipments are done heart garden, same garden week respectively and are arranged, two groups of vertically entad alignment of LED, when using the utility model to detect phase sequence, to be connected three lead-in wire overlap joint three-phase supply of input terminal earlier, press power switch AK, SKH-II starts working, LED is scanned, LED wheel flow point is logical, form the electronics rotating disk, dynamically show and detect data, wherein the electronics rotating disk of D1～D16 composition shows that current phase sequence detects data, positive just changes, anti-phase counter-rotating, and the electronics rotating disk that D17～D32 forms shows last phase sequence detection of stored data, positive just changes, storage switch AN is pressed in anti-phase counter-rotating, can store the current detection data.Other element, working method are identical with Fig. 2,

With reference to Fig. 5, the utility model embodiment 2 luminotron D1～D32 are divided into two groups, D1～D16 is one group, and D17～D32 is another group, does heart garden, same garden week respectively and arranges, two groups of vertically entad alignment of LED, angle is 22.5 degree between the LED, and wherein D1～D17 is a red LED, shows that phase sequence detects or motor turns to data, D17～D32 is a green LED, shows that phase sequence detection of stored data or motor turn to the storage data.

Title	R1～R6	R8	R9～R12	R13～R15	R16～R19	R21～R27	R20
Title	R1～R6	R8	R9～R12	R13～R15	R16～R19	R21～R27	R20	Specification	2W68K	10K	150Ω	330Ω	10K	470Ω	1K

Title	E	D1～D16	D17～D32	D33～D36	D37	D38、D39	D40
Title	E	D1～D16	D17～D32	D33～D36	D37	D38、D39	D40	Specification	1.5V battery	Red LED	Green LED	Red LED	Green LED	Dual-colored LED	1N5817

Title	C1	L	ZD1～ZD3	IC1	AK、AN	Special chip	Special chip
Title	C1	L	ZD1～ZD3	IC1	AK、AN	Special chip	Special chip	Specification	47μF	47μH	4.5V	ME501	Touch-switch	SKH-1	SKH-II

Claims

1, a kind of intellectual phase sequence detector comprises shell, three-phase supply sample circuit, integrated circuit, phase shortage indicator, detects data display equipment, and the external lead wire connection terminal, it is characterized in that; Said detection data display equipment has increased by one group of detection of stored data display equipment, detecting data output end with ic chip is connected, in order to show the detection of stored data, increase a storage switch, be connected with the ic chip input end, in the online detection, press storage switch, can store the current detection data.

2, according to according to the described intellectual phase sequence detector of claim 1, it is characterized in that; Said detection of stored data display equipment is shown by double color luminotron.

3, according to according to the described intellectual phase sequence detector of claim 1, it is characterized in that; Said detection data, detection of stored data are shown by the electronics rotating disk that two groups of LED form respectively, positive just changes, anti-phase counter-rotating, wherein one group shows the current detection data, another group shows last detection of stored data, two groups of LED do heart garden, same garden week respectively and arrange, and two groups of vertically entad alignment of LED are synchronous with two groups of LED rotations of phase time starting point.

4, intellectual phase sequence detector according to claim 1 is characterized in that; Phase sequence detects and motor steering detects a shared group display equipment, when detecting phase sequence, be used for showing the display of the positive and negative phase of phase sequence, when detecting motor steering, change just commentaries on classics, the counter-rotating that shows motor, be used for showing the display of phase sequence detection of stored data, when detecting motor steering, i.e. conversion shows motor steering storage data.

5, intellectual phase sequence detector according to claim 1 is characterized in that; Detect phase sequence and detect identical sample circuit and the input circuit of motor steering employing, shared one group of external detection lead-in wire connection terminal.

6, according to according to the described intellectual phase sequence detector of claim 1, it is characterized in that; Working power is used 1～2 joint 1.5V battery, through the DC-DC chip that boosts voltage is promoted to 5V.