CN210199214U

CN210199214U - Lamp plug residual voltage measurement adapter box

Info

Publication number: CN210199214U
Application number: CN201920512785.9U
Authority: CN
Inventors: Qiangqiang Kong; 孔强强; Qingjun Song; 宋庆军; Meixia Wang; 王美霞; Chen Tan; 谭晨; Kai Yan; 闫凯; Yuhua Zhang; 张玉华; Peng Song; 宋鹏
Original assignee: Jining Semiconductor And Display Product Quality Supervision And Inspection Center
Current assignee: Jining Semiconductor And Display Product Quality Supervision And Inspection Center
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-03-27
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a lamps and lanterns ann rule experimental field is particularly useful for the measurement test of residual voltage between lamps and lanterns plug or adapter contact in the lamps and lanterns protection against electric shock project. The utility model relates to a lamps and lanterns plug residual voltage measures switching box comprises power input end, lamps and lanterns socket, adapter contact wiring end, electromagnetic relay, voltmeter wiring end, test switch. Wherein power input's terminal L and switch are connected, are connected to lamp socket's L end and adapter contact wiring end L through the switch, are connected to electromagnetic relay KT 1's power input end L by lamp socket's N end and adapter contact wiring end's N end again, and power input end N gets back to power input end N via electromagnetic relay KT1 and constitutes closed loop. The utility model discloses can connect test instrument and sample fast conveniently, can test to the lamps and lanterns of different grade type, wiring labour saving and time saving can also test in the twinkling of an eye at the outage, satisfies standard requirement and has improved work efficiency again.

Description

Lamp plug residual voltage measurement adapter box

Technical Field

The utility model relates to a lamps and lanterns ann rule experimental field is particularly useful for the measurement test of residual voltage between plug or adapter contact in lamps and lanterns protection against electric shock project.

Background

Lamps are indispensable electrical products in production and life, the safety performance of the lamps directly concerns life and property safety of people, various types of lamps are in endless range along with the increasing development of science and technology, the application field is wider and wider, and more lamp manufacturers exist.

The national standard GB7000.1 specifies the safety inspection of lamps, and is a general standard for the safety inspection of lamps. The electric shock protection is an important detection item in lamp safety testing, the test method for verifying the electric shock protection is different according to different types of lamps, for the lamps with plug-type lamps and guide rail adapters, the verification of residual voltage between two plugs of the lamp plug or between contacts of the adapter is important, and the residual voltage directly influences the electric shock protection performance of the lamps. The national standard GB7000.1 requires that the voltage between two pins of the plug or the adapter contacts should not exceed 34V 1s after the plug-type light is disconnected from the power supply.

In an electrical product detection laboratory, all the electrical product detection laboratories are provided with equipment for measuring voltage, the requirement of 34V limit voltage in the standard can be met, but the test of residual voltage needs to be carried out immediately after the tested lamp is disconnected from a power supply for 1s, the requirement on test time is strict, and the requirements on the speed of a tester and the precision of a test instrument are improved to a certain extent. For the current voltage detection equipment in better utilization laboratory, and to the inconvenient control of survey crew test speed in the experiment, the utility model provides a strict but simple structure, measurement rapidly and the convenient novel lamps and lanterns plug residual voltage measurement switching box of wiring according to the standard requirement.

Disclosure of Invention

The utility model discloses a realize through following technical scheme: the utility model discloses constitute by power input terminal, lamps and lanterns socket, adapter contact binding post, electromagnetic relay, voltmeter binding post, test switch. Wherein power input's terminal L and switch are connected, are connected to lamp socket's L end and adapter contact wiring end L through the switch, are connected to electromagnetic relay KT 1's power input end L by lamp socket's N end and adapter contact wiring end's N end again, and power input end N gets back to power input end N via electromagnetic relay KT1 and constitutes closed loop.

The power input terminal, the adapter contact connecting terminal and the voltmeter connecting terminal are terminals which can be wound and screwed down and can be plugged and pulled, and are respectively used for testing voltage input, connection of the adapter contact and connection of the digital voltmeter.

The lamp socket is a multipurpose socket and can be respectively connected with single-phase two-pole and single-phase three-level plugs so as to be suitable for different types of lamp plugs.

The test switch is used for switching on and off the lamp to be tested; the electromagnetic relay comprises two normally closed contacts, two normally open contacts, two common contacts and a contact reed. When the relay is not connected with a power supply, the normally closed contact is connected, and after the relay is connected with the power supply, the normally closed contact is disconnected and the normally open contact is connected; two ends of the connector contact terminal are respectively connected with two normally closed contacts of the electromagnetic relay, and the voltmeter terminal is respectively connected with two common contacts of the electromagnetic relay.

Drawings

Fig. 1 is a connection block diagram of the lamp plug residual voltage measurement adapter box of the present invention;

fig. 2 is a schematic plan view of the lamp plug residual voltage measurement adapter box of the present invention;

fig. 3 is a schematic diagram of the internal wiring of the present invention.

Wherein, 1 and 2 are voltmeter terminals, 3 and 4 are adapter contact terminals, 5, 6 and 7 are L, PE and N of power input terminals respectively, 8 is an electrified state indicator, 9 is a test state indicator, 10 is a test switch, 11 is a tested lamp socket, KT1 is an electromagnetic relay, wherein a and d are normally closed contacts, and c and f are normally open contacts; b. e is the common contact.

Detailed Description

The utility model discloses lamps and lanterns plug residual voltage measures switching box structure is shown in figure 2, include for

voltmeter wiring end

1, 2, adapter

contact wiring end

3, 4, power input end 5, 6, 7, on-state pilot lamp 8, test state pilot lamp 9, test switch 10, and lamps and lanterns socket 11 and electromagnetic relay KT1 are tested.

FIG. 2 illustrates: 1-7 are binding posts which can be wound and pulled out and are used for connecting lead wires; wherein: 1 and 2 are terminals of a test voltmeter, and are used for connecting test leads of the digital multimeter; 3 and 4 are adapter contact terminals for connecting to adapter contacts of a test light fixture; 5. 6, 7 are power input ends for supplying power to the tested lamp; the test switch 10 is dialed to 8 to represent that the power supply is switched on, and the electromagnetic relay and the tested lamp are electrified to work; when the voltage is lower to 9, the power-off test is performed, and the electromagnetic relay and the tested lamp are powered off; for the connection of electromagnetic relay KT 1: a. d is a normally closed contact, and c and f are normally open contacts; b. e is a common contact; binding post 3 and a connect, binding post 4 and d connect, binding post 1 and b connect, binding post 2 and e connect.

The working principle is as follows: taking a plug type lamp as an example, a tested lamp is connected to a lamp socket end, the tested lamp does not work in a non-electrified state, normally closed contacts a and d of an electromagnetic relay are closed all the time, a switch 10 is pressed to enable the switch to be in an electrified position, an electrified state indicator lamp 8 is lightened, the tested lamp is in a normal working state, the electromagnetic relay KT1 is electrified at the same time, the normally closed contacts a and d are disconnected with a spring contact, normally open contacts c and f are connected with the spring contact, and the bolt connection of a voltmeter and the tested lamp is in a disconnected state; after the lamp to be tested works to reach a stable state, the switch is opened to enable the switch to be in a testing position, the testing state indicator lamp 9 is lightened, the lamp to be tested is powered off at the moment, the electromagnetic relay KT1 is powered off at the same time, the normally open contacts c and f are disconnected with the spring contact, the normally closed contact a is connected with the spring contact d, the digital multipurpose meter and the plug pins are in a connecting state at the moment, and the measured voltage is the residual voltage between the two plug pins; and (5) finishing the test. For rail adapter fixtures, it is then necessary to connect the adapter contacts to the

adapter contact terminals

3 and 4, the same test principle as for plug-type fixtures.

The utility model discloses can connect test instrument and quilt product fast conveniently, and can test to the lamps and lanterns under test of different grade type, wiring labour saving and time saving is effective again in the experiment, can also test in the twinkling of an eye at the outage, both satisfy standard requirement and very big improvement work efficiency again. The utility model discloses a fine market perspective has.

Claims

1. The utility model provides a lamps and lanterns plug residual voltage measures switching box, by power input end, lamps and lanterns socket, adapter contact wiring end, electromagnetic relay, voltmeter wiring end, test switch constitute characterized by: terminal L and the switch of power input end are connected, are connected to the L end and the adapter contact wiring end L of lamps and lanterns socket through the switch, are connected to electromagnetic relay KT 1's power input end L by the N end of lamps and lanterns socket and the N end of adapter contact wiring end again, get back to power input end N via electromagnetic relay KT1 and constitute closed loop.

2. The lamp plug residual voltage measurement adapter box of claim 1, wherein: the power input end, the adapter contact terminal and the voltmeter terminal are terminals which can be wound, screwed and plugged, and the connector is suitable for connecting leads of different types.

3. The lamp plug residual voltage measurement adapter box of claim 1, wherein: the lamp socket is a multipurpose socket and can be respectively connected with single-phase two-pole and single-phase three-level plugs so as to be suitable for different types of tested lamp plugs.

4. The lamp plug residual voltage measurement adapter box of claim 1, wherein: the test switch is used for switching on and off the lamp to be tested.

5. The lamp plug residual voltage measurement adapter box of claim 1, wherein: the electromagnetic relay comprises two normally closed contacts, two normally open contacts, two common contacts and a contact reed; the L, N end of the socket and the two ends of the connector contact terminal are respectively connected, the two ends of the connector contact terminal are respectively connected with the two normally closed contacts of the electromagnetic relay, and the voltmeter terminal is respectively connected with the two common contacts of the electromagnetic relay.