CN204807682U - Power converter's ageing platform truck - Google Patents
Power converter's ageing platform truck Download PDFInfo
- Publication number
- CN204807682U CN204807682U CN201520419414.8U CN201520419414U CN204807682U CN 204807682 U CN204807682 U CN 204807682U CN 201520419414 U CN201520419414 U CN 201520419414U CN 204807682 U CN204807682 U CN 204807682U
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- aging
- platen
- heat source
- chassis
- electric heat
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Abstract
The utility model provides a power converter's ageing platform truck, including the platen that is used for placeeing power converter for the electric heat source of heating platen and the controller that is used for controlling the electric heat source. The platform truck that should wear out when wearing out to power converter, can directly be placed power converter and heat on the platen to the temperature of accessible controller controlled heating. Compared with the prior art, the mode of direct contact heating can accurate control power converter shell temperature, shorten intensification to the time of predetermineeing the aging temperature, the curved pot stability of entering MTBF that messenger power converter can be as early as possible.
Description
Technical field
The application relates to Energy control technical field, more particularly, relates to a kind of aging chassis of power supply changeover device.
Background technology
Power supply changeover device is a kind of power power-supply input power being converted to another kind of specification according to demand, is often applied to charger, adapter and LED driver etc.
A kind of MTBF curve of power supply changeover device is shown see Fig. 1.By MTBF (MeanTimeBetweenFailure, mean time between failures) curve is known, working time of power supply changeover device just can enter crash rate lower stationary phase after the early stage period higher through crash rate, the product entering stationary phase is applicable to dropping into actual use, carries out burin-in process as therefore last in power supply changeover device shipment.
The existing aging techniques of power supply changeover device is placed in burn-in chamber by product, and carry out aging power supply changeover device by the integrated environment temperature controlling burn-in chamber, thus accurately can not control the shell temperature of power supply changeover device, the time entering the stationary phase shown in MTBF curve is longer.
Utility model content
In view of this, the utility model provides a kind of aging chassis of power supply changeover device, carry out aging by the mode of Direct Contact Heating to power supply changeover device, accurately can control the shell temperature of power supply changeover device, make power supply changeover device enter the stationary phase of MTBF curve faster.
For achieving the above object, the utility model provides following technical scheme:
An aging chassis for power supply changeover device, comprising:
Put the platen of power supply changeover device;
Heat to described platen, contact the electric heat source of placing with described platen;
Be connected with described electric heat source, control the controller of described electric heat source whether power on/off.
Preferably, described controller comprises:
Input power;
Monitor station plate temperature exports connection signal when being less than preset temperature range, otherwise exports the testing circuit of cut-off signal;
The on-off circuit whether described input power be energized to described electric heat source is controlled according to the output signal of testing circuit;
The control end of described on-off circuit connects the signal output part of described testing circuit, and two controlled ends of described on-off circuit are connected between described input power and described electric heat source.
Preferably, described controller also comprises two controlled ends and is connected between described on-off circuit and described electric heat source, the normally closed switch that control end is connected with described testing circuit;
Wherein, when the platen temperature that described testing circuit detects is greater than described preset temperature range, controls described normally closed switch and disconnect.
Preferably, described power supply changeover device is LED driver.
Preferably, also comprise:
Be connected with described testing circuit, when described testing circuit detects that platen temperature is greater than described preset temperature range, the alarm of output alarm signal.
Preferably, described testing circuit comprises the temperature sensor of monitor station plate temperature;
Be connected with described temperature sensor, compare platen temperature and described preset temperature range, and export the temp controlled meter of unlike signal according to comparative result.
Preferably, described platen is aluminium sheet or ceramic wafer;
Wherein, when described platen is aluminium sheet, the plate face of described platen is provided with insulating medium.
Preferably, described electric heat source is power resistor, heating wire or heat-generating pipe, and described on-off circuit is solid-state relay.
Preferably, described aging chassis comprises multilayer platen, and every layer of platen is equipped with an electric heat source.
Preferably, described aging chassis also comprises the main body of surrounding described aging chassis and is provided with the thermal insulation cabinet of ventilating opening and is built in the fan of described thermal insulation cabinet.
Known via above-mentioned technical scheme, compared with prior art, the utility model provides a kind of aging chassis of power supply changeover device, comprises the platen for putting power supply changeover device, for the electric heat source of heated plate and the controller for controlling electric heat source.Power supply changeover device, when carrying out aging to power supply changeover device, directly can be placed on platen and heat by this aging chassis, and controls the temperature of heating by controller.Compared with prior art, the mode of Direct Contact Heating accurately can control the shell temperature of power supply changeover device, shortens the time being warming up to default aging temperature, enables power supply changeover device enter the stationary phase of MTBF curve as soon as possible.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only the embodiment of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 shows a kind of MTBF curve of power supply changeover device;
Fig. 2 shows the structural representation of the aging chassis of a kind of power supply changeover device disclosed in the utility model embodiment;
Fig. 3 shows the circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model;
Fig. 4 shows the circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model;
Fig. 5 shows the circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model;
Fig. 6 shows the circuit diagram of a kind of testing circuit disclosed in another embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
The structural representation of the aging chassis of a kind of power supply changeover device disclosed in the utility model embodiment is shown see Fig. 2.
As shown in Figure 2, this aging chassis comprises: put the platen 1 of power supply changeover device, heat to described platen, contact the electric heat source 2 of placement and be connected with described electric heat source 2 with described platen, controls the controller 3 of the whether power on/off of described electric heat source.
Specific works principle is as follows: when carrying out burin-in process to power supply changeover device, is placed on by power supply changeover device on platen 1.Control electric heat source 2 power on/off by controller 3, realize the heating of electric heat source 2 pairs of platens 1, so that the temperature of platen 1 is risen to the aging temperature of applicable power supply changeover device.
To sum up, the utility model provides a kind of aging chassis of power supply changeover device, comprises the platen for putting power supply changeover device, for the electric heat source of heated plate and the controller for controlling electric heat source.Power supply changeover device, when carrying out aging to power supply changeover device, directly can be placed on platen and heat by this aging chassis, and controls the temperature of heating by controller.Compared with prior art, the mode of Direct Contact Heating accurately can control the shell temperature of power supply changeover device, shortens the time being warming up to default aging temperature, enables power supply changeover device enter the stationary phase of MTBF curve as soon as possible.
Optionally, in order to accurately control the temperature of platen in preset temperature range, the circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model is shown see Fig. 3.
In the present embodiment, the controller of this aging chassis comprises: input power 31, testing circuit 32 and on-off circuit 33.
Wherein, whether testing circuit 32 is in preset temperature range for monitor station plate temperature, and exports unlike signal according to testing result.When the temperature of platen is less than preset temperature range, testing circuit 32 exports connection signal to on-off circuit 33; When the temperature of platen is in preset temperature range or beyond preset temperature range, testing circuit 32 exports cut-off signal to on-off circuit 33.
On-off circuit 33 is for according to the power on/off between the output signal control inputs power supply 31 of testing circuit 32 and electric heat source 2.This circuit connecting section involved by aging chassis is divided see Fig. 3, and the signal output part of the control end connection detection circuit 32 of on-off circuit 33, two controlled ends of on-off circuit 33 are connected with electric heat source 2 with input power 31 respectively.When on-off circuit 33 receives connection signal, two controlled ends of on-off circuit 33 are communicated with, and input power 31 is powered to electric heat source 2; When on-off circuit 33 receives cut-off signal, two controlled ends disconnect, and input power 31 stops powering to electric heat source 2.
Specific works principle is as follows: testing circuit 32 detects that platen temperature is lower than preset temperature range, on-off circuit 33 conducting, then input power 31 gives electric heat source 2 electrified regulation; Place because electric heat source 03 contacts with platen, then the heat of electric heat source 3 passes to platen fast, makes platen temperature increase, thus heats power supply changeover device.Testing circuit 32 detect platen temperature to be in preset temperature range or higher than preset temperature range time, on-off circuit 33 disconnects, then input power 31 does not give electric heat source 2 electrified regulation, rises to suppress the continuation of platen temperature.
It should be noted that, platen is low thermal resistance platen in the present embodiment, as aluminium sheet or ceramic wafer.Wherein, when described platen is aluminium sheet, the insulating medium that the plate face of described platen is provided with.Because platen uses the material of low thermal resistance, make the bottom shell temperature of the power supply changeover device be placed on it almost identical with platen temperature, thus reach the effect accurately detected.Described input power 3 can be 100-380Vac alternating current.
The circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model is shown see Fig. 4.In the present embodiment, the platen in this aging chassis, electric heat source and the relative position of power supply changeover device and identical in above embodiment, this is no longer going to repeat them.Controller in the present embodiment is comparatively above different.
Controller described in the present embodiment is except above-described embodiment comprises input power 31, testing circuit 32 and on-off circuit 33, also comprising two controlled ends is connected between described on-off circuit 33 and described electric heat source 2, the normally closed switch 34 that control end is connected with testing circuit 32.
Because described on-off circuit 33 makes its restricted lifetime according to demand on-off action repeatedly in high temperature environments, in order to also be unlikely to occur meeting accident because of platen continuous heating when described on-off circuit 33 lost efficacy, described controller needs to comprise two controlled ends and is connected between described on-off circuit 33 and electric heat source 2, the normally closed switch 34 that control end is connected with testing circuit 32.Input power 31 was made to continue to electric heat source 2 electrified regulation if described on-off circuit 33 loses efficacy; platen temperature continues to be increased beyond preset temperature range; such as 85 DEG C to 90 DEG C; described testing circuit 32 controls described normally closed switch 34 and disconnects (normally closed switch 34 two controlled ends disconnect) and make input power 31 no longer to described electric heat source 2 electrified regulation, thus plays overheat protector effect.
Described normally closed switch 34 can be normally closed relay.
Optionally, in other embodiments of the present utility model, this aging vehicle also comprises alarm 5 on above basis.
The circuit diagram of the aging chassis of a kind of power supply changeover device disclosed in another embodiment of the utility model is shown see Fig. 5.Wherein, described alarm 6 connects described testing circuit 32.When described testing circuit 32 detects that described platen temperature is greater than described preset temperature range, described testing circuit 32 outputs signal the described normally closed switch 34 of control and disconnects, also output signal to described alarm 4, alarm 4 is in starting state under the control of described testing circuit 32 simultaneously.
Mean that when described normally closed switch 34 disconnects described on-off circuit 33 lost efficacy, now alarm 6 need start the aging chassis fault of alert needs shutdown maintenance.
Described alarm 6 can be hummer or pilot lamp, and wherein whether the light on and off of pilot lamp or color difference can be used to refer to described on-off circuit 32 and lost efficacy.
Optionally, the circuit diagram of a kind of testing circuit disclosed in another embodiment of the utility model is shown see Fig. 6.
Present embodiment describes a kind of embodiment of testing circuit 32, the embodiment of this testing circuit 32 is applicable to above-mentioned all embodiments.
See Fig. 6, described testing circuit 32 comprises temperature sensor 01 and is connected temperature sensor, output terminal with input end as the temp controlled meter 02 of the output terminal of testing circuit 32.
Electric signal corresponding for temperature for monitor station plate temperature, and is inputed to temp controlled meter 02 by described temperature sensor 01.Temp controlled meter 02 judges whether to be in preset temperature range according to the electric signal received, and outputs signal to described on-off circuit, normally closed switch or alarm accordingly.
Electric energy major part these can be converted to the device of heat energy for power resistor, heating wire or heat-generating pipe by the described electric heat source in above-mentioned all embodiments; Described on-off circuit can be solid-state relay.
Aging chassis in all embodiments of the application can comprise multilayer platen, and every layer of platen is equipped with an electric heat source.
It should be noted that, described testing circuit can all arrange one or aging chassis shares one at every layer of platen, and described on-off circuit can all arrange one or an aging chassis shares one at every layer of platen.
Described aging chassis comprises multilayer platen, and one deck platen places several power supply changeover devices according to actual conditions, is convenient to aging multiple stage power supply changeover device simultaneously like this, improves shipment efficiency.
Described aging chassis also comprises the main body of surrounding aging chassis and is provided with the thermal insulation cabinet of ventilating opening and is built in the fan of described thermal insulation cabinet.
Described thermal insulation cabinet makes for surrounding agingtable vehicle main body the little space that in it, formation one is relatively independent, when detecting that the temperature in this little space is greater than preset range, starting fan, reduces temperature in little space by the ventilating opening of thermal insulation cabinet and the extraneous cross-ventilation that formed; The another one effect arranging fan is that its running makes the air circulation flow in whole little space to reach the effect that in thermal insulation cabinet, temperature is consistent everywhere.
Described thermal insulation cabinet can be a cubical wooden cabinet, covers on outside aging chassis.
Described power supply changeover device above in all embodiments is LED driver.When power supply changeover device is LED driver, its practical service environment is narrow and small light fixture space, LED lamp bead sends a large amount of heats and makes working environment more severe, adopts in prior art and LED driver is placed in burn-in chamber the actual working environment that the aging techniques controlling environment temperature can not simulate LED driver.In other words, the aging aging chassis with heated plate being more suitable for adopting the application to propose of LED driver, because LED driver contacts placement with heated plate, the shell temperature that just accurately can control LED driver is aging to carry out, and simulates the working environment that it is harsh.
It should be noted that, due to the bottom Direct Contact Heating platen of power supply changeover device, then the bottom shell temperature of power supply changeover device is almost identical with platen, but the top of power supply changeover device is not because contact with heated plate, then its top shell temperature may have difference with bottom shell temperature, relatively consistent in order to ensure the overall shell temperature of power supply changeover device, the aging chassis of the application can be placed in the controlled burn-in chamber of ring temperature and be combined, the cabinet top of power supply changeover device is also heated, add the heat transfer of casing, finally make the casing bulk temperature of power supply changeover device consistent.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an aging chassis for power supply changeover device, is characterized in that, comprising:
Put the platen of power supply changeover device;
Heat to described platen, contact the electric heat source of placing with described platen;
Be connected with described electric heat source, control the controller of described electric heat source whether power on/off.
2. aging chassis according to claim 1, is characterized in that, described controller comprises:
Input power;
Monitor station plate temperature exports connection signal when being less than preset temperature range, otherwise, export the testing circuit of cut-off signal;
The on-off circuit whether described input power be energized to described electric heat source is controlled according to the output signal of testing circuit;
The control end of described on-off circuit connects the signal output part of described testing circuit, and two controlled ends of described on-off circuit are connected between described input power and described electric heat source.
3. aging chassis according to claim 2, is characterized in that, described controller also comprises two controlled ends and is connected between described on-off circuit and described electric heat source, the normally closed switch that control end is connected with described testing circuit;
Wherein, when the platen temperature that described testing circuit detects is greater than described preset temperature range, controls described normally closed switch and disconnect.
4. aging chassis according to claim 1, is characterized in that, described power supply changeover device is LED driver.
5. the aging chassis according to Claims 2 or 3, is characterized in that, also comprise:
Be connected with described testing circuit, when described testing circuit detects that platen temperature is greater than described preset temperature range, the alarm of output alarm signal.
6. aging chassis according to claim 2, is characterized in that, described testing circuit comprises the temperature sensor of monitor station plate temperature;
Be connected with described temperature sensor, compare platen temperature and described preset temperature range, and export the temp controlled meter of unlike signal according to comparative result.
7. aging chassis according to claim 1, is characterized in that, described platen is aluminium sheet or ceramic wafer;
Wherein, when described platen is aluminium sheet, the plate face of described platen is provided with insulating medium.
8. aging chassis according to claim 2, is characterized in that, described electric heat source is power resistor, heating wire or heat-generating pipe, and described on-off circuit is solid-state relay.
9. aging chassis according to claim 1, is characterized in that, described aging chassis comprises multilayer platen, and every layer of platen is equipped with an electric heat source.
10. aging chassis according to claim 1, is characterized in that, described aging chassis also comprises the main body of surrounding described aging chassis and is provided with the thermal insulation cabinet of ventilating opening and is built in the fan of described thermal insulation cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419414.8U CN204807682U (en) | 2015-06-17 | 2015-06-17 | Power converter's ageing platform truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419414.8U CN204807682U (en) | 2015-06-17 | 2015-06-17 | Power converter's ageing platform truck |
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| Publication Number | Publication Date |
|---|---|
| CN204807682U true CN204807682U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520419414.8U Active CN204807682U (en) | 2015-06-17 | 2015-06-17 | Power converter's ageing platform truck |
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| CN (1) | CN204807682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946546A (en) * | 2019-04-10 | 2019-06-28 | 苏州科技大学 | A kind of the degradation system and method for excessive heating protection of photoelectrical coupler |
-
2015
- 2015-06-17 CN CN201520419414.8U patent/CN204807682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946546A (en) * | 2019-04-10 | 2019-06-28 | 苏州科技大学 | A kind of the degradation system and method for excessive heating protection of photoelectrical coupler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |