CN2090993U

CN2090993U - Multifunctional tester for wire connecting state

Info

Publication number: CN2090993U
Application number: CN 91215512
Authority: CN
Inventors: 曹为立
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-28
Filing date: 1991-05-28
Publication date: 1991-12-18

Abstract

The utility model discloses a multifunctional detector for a wire connecting state. Various electronic components and acoustic components arranged between each of detecting electrodes. The multifunctional detector for a wire connecting state can completely, accurately, and effectively display the wire connecting state in the socket of a power supply, bringing a reliable detecting method for electric installation, repair, and use. Thus, various incipient faults in the socket of the power supply can be effectively and timely eliminated, ensuring users' safety, and normal work of equipment. The utility model with the advantages of low cost, simple structure, high reliability, convenience for carrying, full categories of fault judging, definite display is a multifunctional detector for a wire connecting state worth popularizing, and applying.

Description

Multifunctional tester for wire connecting state

The utility model relate to a kind of web member to electricity short circuit, open circuit or device that incorrect connection is surveyed.Particularly a kind of device that the wiring state of single-phase three utmost points, three-phase and quadrupole socket is tested.

Along with developing rapidly of electric equipment products with universal, improve the installation quality of supply socket, guarantee that user's normal electricity consumption and the problem that assures the safety for life and property of the people seem particularly important.In electric installation, incorrect, loose contact, short circuit, broken string, the phase place that the installation of supply socket tends to take place the socket internal wiring such as gets wrong at fault, and user's the personal safety and the life-span of equipment are all had very big harm and influence.The wiring state of supply socket is checked in the connection of past incandescent lamp commonly used, but this method is very dangerous.If measure with multimeter, also comparatively complicated, and show also clear and definite inadequately, comprehensive.A kind of " single-phase three pole socket wiring state testers " (number of patent application 90215578.4) released can reflect the wiring faults in single-phase three pole sockets effectively at present, but can't show the wiring state of three-phase and quadrupole.

The purpose of this utility model provides that a kind of to collect single-phase, the three-phase and quadrupole wiring state of test be the detecting device of one, demonstrates between phase line and the phase line comprehensively, efficiently and accurately, the connection status between phase line and the ground wire, between zero line and the ground wire.Reliable means are provided for detecting the supply socket installation quality.

The technical solution of the utility model is such: detecting device is made of housing, test pole, switch and detection alarm circuit.It detects the testing circuit that mainly comprises single-phase three a utmost points/three-phase and quadrupole in alarm circuit, and by switch to reach the conversion of measuring ability.In addition, also be equipped with circuit of testing the phase sequence, AC inductance testing circuit and zero ground short circuit testing circuit in this detection alarm circuit.Thereby can reflect electric wire connection state in the supply socket all sidedly.

Because the utility model has connected multiple light-emitting component respectively on each test pole, the various various combination signals that used acousto-optic to show again, so that detecting device can demonstrate the connection status in the supply socket comprehensively, accurately and efficiently, for electric installation, maintenance, the reliable detection means that provide are provided.Thereby can eliminate the fault in the socket timely, guarantee user's the personal safety and the life-span of equipment.

The utlity model has cheap, simple structure, failure judgement A wide selection of colours and designs, show clear and definite, use advantages such as easy to carry, be a kind of multifunctional access line states detecting device of very easily applying.

Fig. 1 is the utility model way circuit schematic diagram

Fig. 2 is the utility model three-phase and quadrupole testing circuit schematic diagram

Fig. 3 is the utility model circuit of testing the phase sequence schematic diagram

Fig. 4 is the utility model AC inductance testing circuit schematic diagram

Fig. 5 is the utility model zero ground short circuit testing circuit schematic diagram

Fig. 6 is single-phase three utmost point testing circuit schematic diagrams of the utility model

Fig. 7 is the utility model shell figure.

The utility model will be further described below in conjunction with accompanying drawing and embodiment.

With reference to Fig. 1, detection alarm circuit described in the utility model mainly is made of single-phase three utmost points/three-phase and quadrupole testing circuit, circuit of testing the phase sequence, AC inductance testing circuit and Zero-liue short circuit testing circuit.K wherein ₁Switch for single-phase three utmost points/three-phase and quadrupole testing circuit.As switch K ₁Put when a, the three-phase and quadrupole testing circuit is connected with each test pole, can detect the wiring situation in the three-phase and quadrupole socket; As switch K ₁Put when b, single-phase three utmost point testing circuits are switched on, and can detect the wiring situation in single-phase three pole sockets.K ₂Be the switch of circuit of testing the phase sequence, the phase sequence that can detect three phase connections when placing b is along contrary state.

With reference to Fig. 2, in the three-phase and quadrupole testing circuit, be equipped with diode and electronic light-emitting component between each test pole, the diode pole reversal between its each phase line test pole is settled, and one of them diode between the diode between phase, the ground wire test pole and each the phase line test pole is settled in the same way.From Fig. 2, the diode D on promptly from A to B phase test pole ₆With the diode D of B to the C phase test pole ₇Polarity is opposite; Diode D on from A to B phase test pole ₆With the diode D of C to the ground wire test pole E ₈Polarity is identical.

Electronic light-emitting component described in the utility model circuit can be that light emitting diode also can be a neon lamp.These electronic components can be respectively with each test pole between the diode series aiding connection be connected, also can connect by reverse parallel connection.The used electronic light-emitting component of present embodiment is a light emitting diode, and is connected in series with diode.

Under the correct situation of socket wiring, light emitting diode D ₁, D ₂, D ₃It is luminous all to work, wherein D ₁, D ₂Be subjected to the effect of line voltage respectively, D ₃Then be subjected to the effect of phase voltage;

When power supply wiring is lacking A phase time, D ₁Two ends do not have the voltage effect so do not work, and D ₂, D ₃Still bright;

When power supply wiring lacks the B phase time, because D ₁, D ₄With D ₂, D ₅Be reverse connection, effect A E two end line voltages are all ended by reverse side, so D ₁, D ₂All do not work, and D ₃Still bright;

When power supply wiring lacks C phase time, D ₁Bright, and D ₂, D ₃Be cut off the same with above-mentioned situation, the former capital does not work;

Lacking when power supply wiring under the situation of ground wire E, obviously D ₃Do not work, and D ₁, D ₂Luminous under the line voltage effect of A, B and B, C respectively.

With reference to Fig. 3,, pass through conversion, K switch by star form with Resistor-Capacitor Unit and electronic light-emitting component ₂With the circuit of testing the phase sequence that each phase line test pole is connected, can be used to detect the phase sequence of three-phase supply.Its principle is because capacitor C has the phase shift effect, changes the wherein electric degree angle of a phase, makes to affact diode D ₄, D ₅On vector voltage do not wait, its rule is that B phase vector voltage is greater than C phase vector voltage all the time.According to above principle, and be used as practical circuit of testing the phase sequence by the collocation that best RC numerical value is tried to achieve in calculating.When connecing one of electric capacity, hypothesis is A phase time, then sending and receiving light pipe D mutually ₄Bright one is the B phase mutually, and another is the C phase mutually, and at this moment the phase sequence of power supply wiring is a positive phase sequence.Otherwise, if luminotron D ₅Bright, then power supply wiring then is a negative phase sequence.

With reference to Fig. 4, the utility model also is provided with an AC inductance testing circuit that is connected with the ground wire test pole.When phase line and ground wire wrong, extremely go up at ground wire E and just to produce ac signal, and provide a weak current by high resistance R and trigger the work of alarm ic chip, promote the transducer sounding again.

With reference to Fig. 5, when zero, under the correct situation of wiring, the transistor GB with zero, in the Zero-liue short circuit testing circuit that is connected of ground wire test pole is in conducting state, at this moment luminotron D under the effect of switch S, power supply ₉Bright; Otherwise when zero, during the ground wire short circuit, triode GB ends, and does not have electric current to pass through, then luminotron D ₉Do not work.

With reference to Fig. 7, the utility model circuit and electronic component are installed among the housing, wherein luminotron D ₁～D ₅And D ₉The bare shell surface, and each test pole drawn outside the housing by connector.Housing one side also is equipped with switch K ₁, K ₂And pushbutton switch S.The detecting device such from profile carry, extremely easy to use, light shows clear and definite, is convenient to operating personnel's intuitive judgment.

More than illustrated the utility model circuit working principle, because of single-phase three utmost point testing circuit principles have had explanation in " single-phase three pole socket wiring state testers " patented claim, so repeat no more here.

Claims

1, multifunctional access line states detecting device is made of housing, test pole, switch and detection alarm circuit, and it is characterized in that: described detection alarm circuit mainly comprises single-phase three a utmost points/three-phase and quadrupole testing circuit by switch control.

2, multifunctional access line states detecting device according to claim 1 is characterized in that: described single-phase three utmost points/three-phase and quadrupole testing circuit converts to behind the three-phase and quadrupole testing circuit by switch and is equipped with diode and electronic light-emitting component between its each test pole.

3, multifunctional access line states detecting device according to claim 2, it is characterized in that: in the three-phase and quadrupole testing circuit through conversion, the diode pole reversal between each phase line test pole is settled, and one of them diode between the diode between phase line test pole, the ground wire test pole and each the phase line test pole is settled in the same way.

4, multifunctional access line states detecting device according to claim 2 is characterized in that: described electronic light-emitting component can be respectively with each test pole between the diode series aiding connection be connected, also can connect by reverse parallel connection.

5, multifunctional access line states detecting device according to claim 1, it is characterized in that also comprising in the described detection alarm circuit circuit of testing the phase sequence that can be connected with each phase line test pole by switch, this circuit is that Resistor-Capacitor Unit and electronic light-emitting component are formed, and is star form with each phase line test pole and is connected.

6, according to claim 2,4,5 described multifunctional access line states detecting devices, it is characterized in that: described electronic light-emitting component can be that light emitting diode also can be a neon lamp.

7, multifunctional access line states detecting device according to claim 1 is characterized in that: also comprise an AC inductance testing circuit that is connected with the ground wire test pole in the described detection alarm circuit.

8, multifunctional access line states detecting device according to claim 1 is characterized in that: also comprise one and Zero-liue short circuit testing circuit zero, that the ground wire test pole is connected in the described detection alarm circuit.