CN204347225U

CN204347225U - A kind of power switch period measuring device

Info

Publication number: CN204347225U
Application number: CN201520035002.4U
Authority: CN
Inventors: 彭骞; 余新华; 肖家波; 胡磊; 陈凯; 沈亚非
Original assignee: Wuhan Jingce Electronic Technology Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd
Priority date: 2015-01-19
Filing date: 2015-01-19
Publication date: 2015-05-20
Anticipated expiration: 2025-01-19

Abstract

The utility model belongs to power electronic product test technical field, is specifically related to a kind of power switch period measuring device.It comprises AC/DC power module, DC/DC power module, load module, single-chip microcomputer, display module and power switch output module, described AC/DC power module provides low-voltage DC for described DC/DC power module, for described power switch output module provides alternating voltage, described DC/DC power module is respectively described load module, single-chip microcomputer, display module and power switch output module provide system power supply, described load module is electrically connected with the input end of single-chip microcomputer, the output terminal of single-chip microcomputer is electrically connected with display module, the control end of single-chip microcomputer is electrically connected with power switch output module.Volume is little together for each module integration of the utility model, and adopt conventional components with low cost, whole device only has a power inlet and a power output, and test process is simple, easy and simple to handle.

Description

A kind of power switch period measuring device

Technical field

The utility model belongs to power electronic product test technical field, is specifically related to a kind of power switch period measuring device.

Background technology

The power electronic product of new research and development is general before batch production all will through strict reliability testing, and power switch period measuring is one of very important reliability testing project of power electronic product.

Generally adopt the scheme of alternating current source (AC Source) gauge tap electricity cycle and cycle index to check the reliability of measured power electronic product power source at present, but this testing scheme exists following defect: 1) alternating current source is expensive, cause product reliability to be tested and have high input; 2) alternating current source volume is large, weight large, takes up room large and is not easy to carry.

In recent years, also the scheme of paid pilot production Single-chip Controlling relay checks the reliability of measured power electronic product power source, but also there is following defect in this testing scheme: 1) excess current is little, general all employings 250V/10A relay, maximumly can only detect 2500W power apparatus, if when testing powerful device as more than 5000W, then can not reach product test demand, and powerful device can produce larger moment impact electric current instantaneously at switch electricity, the reliability that relay itself uses is had an impact; 2) need multiple power supplies to power simultaneously, need in test process to provide the tested power supply establishing the parts such as power electronic product, single-chip microcomputer, LED display, relay, use comparatively inconvenient.

Summary of the invention

The purpose of this utility model is exactly the deficiency existed to solve above-mentioned background technology, provides the power switch period measuring device that a kind of production cost is low, volume is little, can carry out power switch period measuring to high-power electronic product.

The technical solution adopted in the utility model is: a kind of power switch period measuring device, comprise AC/DC power module, DC/DC power module, load module, single-chip microcomputer, display module and power switch output module, described AC/DC power module provides low-voltage DC for described DC/DC power module, for described power switch output module provides alternating voltage, described DC/DC power module is respectively described load module, single-chip microcomputer, display module and power switch output module provide system power supply, the output terminal of described load module is electrically connected with the input end of described single-chip microcomputer, the output terminal of described single-chip microcomputer is electrically connected with the input end of described display module, the control end of described single-chip microcomputer is electrically connected with the control end of described power switch output module.

Further, described AC/DC power module, DC/DC power module, load module, single-chip microcomputer, display module and power switch output module are all integrated on pcb board.

Further, the live width of walking on described pcb board between AC/DC power module (1) and power switch output module (6) is 2-6cm.

Further, the cabling on described pcb board between AC/DC power module (1) and power switch output module (6) is double-decker.

Further, described power switch output module is relay.

Further, the output voltage of described relay is 250V, electric current is 40A, and selecting and exporting electrical quantity is the relay of 250V/40A, the power electronic product of most high energy test 10KW.

Further, described load module is keyswitch.

Further, described display module is display screen.

The utility model realizes power switch period measuring by Single-chip Controlling relay, arrange power module for single-chip microcomputer and relay provides power supply simultaneously, whole device only has a power inlet and a power output, test process is simple, easy and simple to handle, and each module integration volume is little together, adopt conventional components with low cost.PCB live width of the present utility model adopts 2-6cm, can pass through big current, can carry out power switch period measuring, meet the requirement that volume is little, with low cost to high-power electronic product.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.

As shown in Figure 1, the utility model comprises AC/DC power module 1, DC/DC power module 2, load module 3, single-chip microcomputer 4, display module 5 and power switch output module 6.Wherein, the input end of AC/DC power module 1 is connected with outside 220V electric main, the output terminal of AC/DC power module 1 is connected with the power input of DC/DC power module 2 and power switch output module 6 respectively, AC/DC power module 1 provides the low-voltage DC of 12V for DC/DC power module 2, and the input end for power switch output module 6 provides the alternating voltage of 220V; The system power supply that DC/DC power module 2 is respectively load module 3, single-chip microcomputer 4, display module 5 provide 5V, for power switch output module 6 provides the system power supply of 12V; The output terminal of load module 3 is electrically connected with the input end of single-chip microcomputer 4; The output terminal of single-chip microcomputer 4 is electrically connected with the input end of described display module 5, the control end of single-chip microcomputer 4 is electrically connected with the control end of power switch output module 6, the output terminal of power switch output module 6 connects power product 7 to be measured, and single-chip microcomputer 4 mainly makes power switch output module 6 can the alternating voltage of output 220V on request in order to the switch motion controlling power switch output module 6.

In such scheme, AC/DC power module 1, DC/DC power module 2, load module 3, single-chip microcomputer 4, display module 5 and power switch output module 6 are all be integrated on pcb board.Wherein load module 3 is keyswitch, as the input end of single-chip microcomputer 4, in order to the time etc. setting corresponding cycle period, each cycle continues; Display module 5 is display screen, in order to the process of display power supply switch periods test, comprises the time of test, cycle index etc.; Power switch output module 6 selects input and output electrical quantity to be the relay of 250V/40A, the power electronic product of most high energy test 10KW, AC/DC power module is connected with the PCB cabling adopting double-deck 2-6cm wide between relay, common PAB cabling is adopted between other module and relay, circuit safety and reliability, device volume is less.During as power switch period measuring with the Switching Power Supply of 8KW, AC/DC power module is connected with the PCB cabling that double-deck 6cm can be adopted between relay wide.

The content be not described in detail in this instructions belongs to the known prior art of professional and technical personnel in the field.

Claims

1. a power switch period measuring device, it is characterized in that: comprise AC/DC power module (1), DC/DC power module (2), load module (3), single-chip microcomputer (4), display module (5) and power switch output module (6), described AC/DC power module (1) provides low-voltage DC for described DC/DC power module (2), for described power switch output module (6) provides alternating voltage, described DC/DC power module (2) is respectively described load module (3), single-chip microcomputer (4), display module (5) and power switch output module (6) provide system power supply, the output terminal of described load module (3) is electrically connected with the input end of described single-chip microcomputer (4), the output terminal of described single-chip microcomputer (4) is electrically connected with the input end of described display module (5), the control end of described single-chip microcomputer (4) is electrically connected with the control end of described power switch output module (6).

2. a kind of power switch period measuring device according to claim 1, is characterized in that: described AC/DC power module (1), DC/DC power module (2), load module (3), single-chip microcomputer (4), display module (5) and power switch output module (6) are all integrated on pcb board.

3. a kind of power switch period measuring device according to claim 2, is characterized in that: the live width of walking on described pcb board between AC/DC power module (1) and power switch output module (6) is 2-6cm.

4. a kind of power switch period measuring device according to claim 3, is characterized in that: the cabling on described pcb board between AC/DC power module (1) and power switch output module (6) is double-decker.

5. any one power switch period measuring device according to claim 1-4, is characterized in that: described power switch output module (6) is relay.

6. a kind of power switch period measuring device according to claim 5, is characterized in that: the output voltage of described relay is 250V, electric current is 40A.

7. a kind of power switch period measuring device according to claim 1, is characterized in that: described load module (3) is keyswitch.

8. a kind of power switch period measuring device according to claim 1, is characterized in that: described display module (5) is display screen.