CN204495977U - A kind of ageing tester of DC/AC inverter - Google Patents
A kind of ageing tester of DC/AC inverter Download PDFInfo
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- CN204495977U CN204495977U CN201520177397.1U CN201520177397U CN204495977U CN 204495977 U CN204495977 U CN 204495977U CN 201520177397 U CN201520177397 U CN 201520177397U CN 204495977 U CN204495977 U CN 204495977U
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Abstract
The utility model provides a kind of ageing tester of DC/AC inverter, owing to adopting electronic load to carry out burn-in test, can save a large amount of electric energy compared with conventional, electric-resistance load.Further, the output terminal of electronic load directly feeds back to the input end to DC/AC inverter to be tested, can realize recycling of electric power, further saves energy.Therefore, adopt the scheme in the utility model, while aging of product effect can be realized, reclaim the electric power of more than 86%.
Description
Technical field
The utility model relates to a kind of ageing tester of DC/AC inverter, and specifically a kind of AC/DC of utilization tabilized current power supply carries out the device of burn-in test to DC/AC inverter as electronic load.
Background technology
Along with the raising that development and the user of automobile industry require automobile multifunctional, more and more automobile is equipped with vehicle-mounted inverter.General vehicle-mounted inverter can provide 220V/50Hz power supply, can meet most of daily portable type electronic product power demands.
Existing inverter all will carry out the burn-in test test of 3-8 hour after having produced, method applies nominal working conditions to inverter to add nominal load, bad components and parts are allowed to expose through the regular hour under the high temperature conditions, it is the important step guaranteeing product quality, and a large amount of valuable energy will be consumed in vain in the inverter burn-in test process of long period, and add environmental pollution.
Utility model content
For this reason, technical problem to be solved in the utility model be to provide a kind of can the ageing tester of DC/AC inverter of saves energy.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
The utility model provides a kind of ageing tester of DC/AC inverter, and DC/AC inverter to be tested has direct-flow input end and ac output end, its direct-flow input end access direct supply; Described ageing tester comprises the controller for starting burn-in test; Also comprise: at least one electronic load, electronic load described in each has ac input end and DC output end, each electronic load has following annexation with a DC/AC inverter to be tested: the ac input end of electronic load is connected with the ac output end of DC/AC inverter, and the DC output end of electronic load is connected with the direct-flow input end of DC/AC inverter.
The ageing tester of above-mentioned DC/AC inverter, when carrying out burn-in test to multiple stage DC/AC inverter simultaneously: each DC/AC inverter is connected with direct supply by diode, the positive pole of described diode is connected with direct supply, and the negative pole of described diode is connected with the direct-flow input end of DC/AC inverter.
The ageing tester of above-mentioned DC/AC inverter, described electronic load is AC/DC constant current source, and described AC/DC constant current source comprises AC/DC rectification circuit and DC/DC isolated buck circuit; The input end of described AC/DC rectification circuit is connected with the ac output end of DC/AC inverter to be tested, the output terminal of described AC/DC rectification circuit is connected with the input end of described DC/DC isolated buck circuit, and the output terminal of described DC/DC isolated buck circuit is connected with the direct-flow input end of DC/AC inverter to be tested.
The ageing tester of above-mentioned DC/AC inverter, also comprises photoelectrical coupler, and the input end of described photoelectrical coupler is connected with the output terminal of DC/AC inverter to be tested, for detecting the electric signal that DC/AC inverter to be tested exports; The output terminal of described photoelectrical coupler is connected with the controlled terminal of the described PWM drive circuit in described AC/DC constant current source; The enabling signal output terminal of described controller is connected with the controlled terminal of described PWM drive circuit; Described PWM drive circuit starts when the enabling signal of described photoelectrical coupler and described controller exists simultaneously.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) ageing tester of DC/AC inverter described in the utility model, owing to adopting electronic load to carry out burn-in test, can save a large amount of electric energy compared with conventional, electric-resistance load.Further, the output terminal of electronic load directly feeds back to the input end to DC/AC inverter to be tested, can realize recycling of electric power, further saves energy.Therefore, adopt the scheme in the utility model, while aging of product effect can be realized, reclaim the electric power of more than 86%.
(2) ageing tester of DC/AC inverter described in the utility model, when carrying out burn-in test to multiple stage DC/AC inverter simultaneously, each DC/AC inverter is connected with direct supply by diode.Because diode is one way conducting device, therefore electric current can only be the direction from direct supply to DC/AC inverter, and can not realize the direction from DC/AC inverter to direct supply.So electronic load feedback current flows into DC/AC inverter completely again, electronic load feedback energy can not conflict with direct supply, therefore, it is possible to realize multiple stage DC/AC inverter parallel connection test and share a direct supply.
(3) ageing tester of DC/AC inverter described in the utility model, electronic load is AC/DC constant current source, AC/DC constant current source comprises AC/DC rectification circuit and DC/DC isolated buck circuit, adopts AC/DC constant current source to realize synchronous rectification and step-down, therefore can reduce the power consumption of test.
(4) ageing tester of DC/AC inverter described in the utility model, AC/DC constant current source starts when the control signal of photoelectrical coupler and controller exists simultaneously.If i.e. controller enabling signal, and DC/AC inverter non-output signal to be measured, then electronic load can not start, such hypothesis is totally 80 test station, only connect 60 products to be measured, other 20 electronic loads can not work, and therefore can not produce any loss.Can avoid not receiving the electronic load surveying product and produce open circuit loss.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the ageing tester of DC/AC inverter described in the utility model embodiment connection schematic diagram when carrying out burn-in test to separate unit DC/AC inverter;
Fig. 2 is the ageing tester of DC/AC inverter described in the utility model embodiment connection schematic diagram when carrying out burn-in test to multiple stage DC/AC inverter;
Fig. 3 is the annexation schematic diagram of AC/DC constant current source described in the utility model embodiment;
Fig. 4 is the ageing tester of DC/AC inverter described in the utility model embodiment connection schematic diagram when carrying out burn-in test to multiple stage DC/AC inverter.
In figure, Reference numeral is expressed as: 1-diode.
Embodiment
embodiment 1
The present embodiment provides a kind of ageing tester of DC/AC inverter, and DC/AC inverter to be tested has direct-flow input end and ac output end, its direct-flow input end access direct supply.Be illustrated in figure 1 structural relation schematic diagram when carrying out aging to separate unit DC/AC inverter, described ageing tester comprises the controller for starting burn-in test; Also comprise: at least one electronic load, electronic load described in each has ac input end and DC output end, each electronic load has following annexation with a DC/AC inverter to be tested: the ac input end of electronic load is connected with the ac output end of DC/AC inverter, and the DC output end of electronic load is connected with the direct-flow input end of DC/AC inverter.
Wherein DC/AC inverter can be the product of any the type, such as vehicle-mounted inverter.DC/AC inverter is input as direct supply, both can be directly to be connected with direct supply by input end, also can be indirectly be connected with direct supply.Accessory power supply is used for for the equipment of electronic load operation circuit and other needs power supplies provides electric energy.Electronic load as shown in Figure 1, its input end is connected with the output terminal of DC/AC inverter, and for carrying out burn-in test to DC/AC inverter, output terminal directly feeds back to the input end to DC/AC inverter to be tested, recycling of electric power can be realized, saves energy.
embodiment 2
The present embodiment provide as shown in Figure 2 carry out aging to multiple stage DC/AC inverter time structural relation schematic diagram, when carrying out burn-in test to multiple stage DC/AC inverter simultaneously: each DC/AC inverter is connected with direct supply by diode 1, the positive pole of described diode 1 is connected with direct supply, and the negative pole of described diode 1 is connected with the direct-flow input end of DC/AC inverter.It should be noted that, diode herein can select as shown in the figure one, also can select multiple Diode series, and just increase the while that device increasing to some extent to cost and also can serve consumption to electric energy band, therefore the quantity of diode is preferably one.Because diode is one way conducting device, therefore electric current can only be the direction from direct supply to DC/AC inverter, and the direction that can not realize from DC/AC inverter to direct supply, so electronic load feedback current flows into DC/AC inverter completely again, electronic load feedback energy can not conflict with direct supply, therefore, it is possible to realize multiple stage DC/AC inverter parallel connection test and share a direct supply.
As the preferred scheme of one, as shown in Figure 3, described electronic load is AC/DC constant current source, AC/DC constant current source comprises AC/DC rectification circuit and DC/DC isolated buck circuit, the input end of described AC/DC rectification circuit is connected with the ac output end of DC/AC inverter to be tested, the output terminal of described AC/DC rectification circuit is connected with the input end of described DC/DC isolated buck circuit, and the output terminal of described DC/DC isolated buck circuit is connected with the direct-flow input end of DC/AC inverter to be tested.AC/DC constant current source is a kind of conventional device, AC/DC rectification circuit wherein, DC/DC isolated buck circuit are also all more common circuit, such as common half-wave rectifying circuit, full-wave rectifying circuit and bridge rectifier circuit, adopt the step-down of isolated half-bridge circuit realiration, be no longer described in detail herein.Adopt AC/DC constant current source to realize synchronous rectification and step-down, therefore can reduce the power consumption of test.
embodiment 3
As shown in Figure 4, the present embodiment provides the schematic diagram of structural relation when carrying out aging to multiple stage DC/AC inverter, also comprise photoelectrical coupler, the input end of described photoelectrical coupler is connected with the output terminal of DC/AC inverter to be tested, for detecting the electric signal that DC/AC inverter to be tested exports; The output terminal of described photoelectrical coupler is connected with the controlled terminal of the described PWM drive circuit in described AC/DC constant current source; The enabling signal output terminal of described controller is connected with the controlled terminal of described PWM drive circuit; Described PWM drive circuit starts when the enabling signal of described photoelectrical coupler and described controller exists simultaneously.
Namely this AC/DC constant current source electronic load Starting mode has 2 tunnels to control: a road controls to be sent by controller, control all AC/DC constant current source start and closes in all ageing testers, whether another way switch machine signal has output signal to control corresponding AC/DC current source loads startup by detecting DC/AC inverter to be measured.After controller enabling signal sends, if DC/AC inverter non-output signal to be measured, then AC/DC constant current source electronic load can not start.Only the enabling signal of controller and DC/AC inverter output signal all exist time, just can start the work of AC/DC constant current source.If the ageing tester of DC/AC inverter connects 80 test station altogether like this, if only connect 60 products to be measured, other 20 current source loadses can not work, and therefore can not produce any loss.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (4)
1. an ageing tester for DC/AC inverter, DC/AC inverter to be tested has direct-flow input end and ac output end, its direct-flow input end access direct supply; Described ageing tester comprises the controller for starting burn-in test; It is characterized in that, also comprise:
At least one electronic load, electronic load described in each has ac input end and DC output end, and each electronic load and a DC/AC inverter to be tested have following annexation:
The ac input end of electronic load is connected with the ac output end of DC/AC inverter, and the DC output end of electronic load is connected with the direct-flow input end of DC/AC inverter.
2. the ageing tester of DC/AC inverter according to claim 1, is characterized in that: when carrying out burn-in test to multiple stage DC/AC inverter simultaneously:
Each DC/AC inverter is connected with direct supply by diode, and the positive pole of described diode is connected with direct supply, and the negative pole of described diode is connected with the direct-flow input end of DC/AC inverter.
3. the ageing tester of DC/AC inverter according to claim 1 and 2, is characterized in that:
Described electronic load is AC/DC constant current source, and described AC/DC constant current source comprises PWM drive circuit and AC/DC rectification circuit and DC/DC isolated buck circuit;
The input end of described AC/DC rectification circuit is connected with the ac output end of DC/AC inverter to be tested, the output terminal of described AC/DC rectification circuit is connected with the input end of described DC/DC isolated buck circuit, and the output terminal of described DC/DC isolated buck circuit is connected with the direct-flow input end of DC/AC inverter to be tested.
4. the ageing tester of DC/AC inverter according to claim 3, is characterized in that:
Also comprise photoelectrical coupler, the input end of described photoelectrical coupler is connected with the output terminal of DC/AC inverter to be tested, for detecting the electric signal that DC/AC inverter to be tested exports; The output terminal of described photoelectrical coupler is connected with the controlled terminal of the described PWM drive circuit in described AC/DC constant current source; The enabling signal output terminal of described controller is connected with the controlled terminal of described PWM drive circuit; Described PWM drive circuit starts when the enabling signal of described photoelectrical coupler and described controller exists simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177397.1U CN204495977U (en) | 2015-03-27 | 2015-03-27 | A kind of ageing tester of DC/AC inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177397.1U CN204495977U (en) | 2015-03-27 | 2015-03-27 | A kind of ageing tester of DC/AC inverter |
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| Publication Number | Publication Date |
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| CN204495977U true CN204495977U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520177397.1U Expired - Fee Related CN204495977U (en) | 2015-03-27 | 2015-03-27 | A kind of ageing tester of DC/AC inverter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487529A (en) * | 2016-01-25 | 2016-04-13 | 南京越博新能源汽车科技有限公司 | Portable load box for detecting controller of battery electric vehicle |
| CN108092537A (en) * | 2017-12-08 | 2018-05-29 | 艾思玛新能源技术（上海）有限公司苏州高新区分公司 | A kind of multichannel MPPT inverter current-sharing control methods under the conditions of same input source |
| CN108680871A (en) * | 2018-07-27 | 2018-10-19 | 深圳英飞源技术有限公司 | The aging method of two-way changing power module system and its power module |
| CN110146828A (en) * | 2019-05-27 | 2019-08-20 | 深圳市科赛电子有限公司 | A kind of alternating current electronic load module and aging testing system for inverter burn-in test |
| CN115453253A (en) * | 2022-11-09 | 2022-12-09 | 深圳市鼎泰佳创科技有限公司 | Light stores up dc-to-ac converter aging testing system |
| CN110146828B (en) * | 2019-05-27 | 2024-05-17 | 深圳市科赛电子有限公司 | Alternating current electronic load module for aging test of inverter power supply and aging test system |
-
2015
- 2015-03-27 CN CN201520177397.1U patent/CN204495977U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487529A (en) * | 2016-01-25 | 2016-04-13 | 南京越博新能源汽车科技有限公司 | Portable load box for detecting controller of battery electric vehicle |
| CN108092537A (en) * | 2017-12-08 | 2018-05-29 | 艾思玛新能源技术（上海）有限公司苏州高新区分公司 | A kind of multichannel MPPT inverter current-sharing control methods under the conditions of same input source |
| CN108680871A (en) * | 2018-07-27 | 2018-10-19 | 深圳英飞源技术有限公司 | The aging method of two-way changing power module system and its power module |
| CN110146828A (en) * | 2019-05-27 | 2019-08-20 | 深圳市科赛电子有限公司 | A kind of alternating current electronic load module and aging testing system for inverter burn-in test |
| CN110146828B (en) * | 2019-05-27 | 2024-05-17 | 深圳市科赛电子有限公司 | Alternating current electronic load module for aging test of inverter power supply and aging test system |
| CN115453253A (en) * | 2022-11-09 | 2022-12-09 | 深圳市鼎泰佳创科技有限公司 | Light stores up dc-to-ac converter aging testing system |
| CN115453253B (en) * | 2022-11-09 | 2023-02-10 | 深圳市鼎泰佳创科技有限公司 | Light stores up dc-to-ac converter aging testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325608 No. 1098, happy East Road, Hongqiao Town, Yueqing City, Wenzhou, Zhejiang Patentee after: Hop Hing automotive electronics Limited by Share Ltd Address before: 325608 No. 1098, happy East Road, Hongqiao Town, Yueqing City, Wenzhou, Zhejiang Patentee before: CWB Group Automotive Electronic Co., Ltd. |
|
| 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: 20150722 Termination date: 20210327 |