CN201466968U - Power supply device and power conversion assembly thereof - Google Patents
Power supply device and power conversion assembly thereof Download PDFInfo
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- CN201466968U CN201466968U CN200920009487.4U CN200920009487U CN201466968U CN 201466968 U CN201466968 U CN 201466968U CN 200920009487 U CN200920009487 U CN 200920009487U CN 201466968 U CN201466968 U CN 201466968U
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- power
- power supply
- direct current
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Abstract
The utility model relates to a power supply device and a power conversion assembly thereof. The power conversion assembly comprises a conversion box, a conversion conducting wire and more than one adapter plug. A power regulating circuit for regulating output voltage by sections is arranged in the conversion box. A multi-section switch, a power input and output part and more than one interface part are arranged on the conversion box and are respectively connected with the power regulating circuit. The conversion box is connected with a power adapter to obtain direct current power. Through the switching of the multi-section switch and the regulation of the power regulating circuit, direct current power with voltage different from the voltage of the direct current power can be output. The regulated direct current power is taken out by the conversion box through the conversion conducting wire. Adapter plugs of different types can be installed at the other end of the conversion conducting wire to supply power to different load devices. Thereby, the troubles caused to the user because a plurality of groups of power adapters are used at the same time are reduced.
Description
Technical field
The utility model relates to a kind of Power Transfer Unit, relates in particular to a kind ofly to cooperate power supply adaptor to use and adjust the DC power supply that its out-put supply is converted to multiple different size respectively through switching, and gives the conversion kit of different objects with power supply.
Background technology
Most mobile electronic devices all is to utilize storage battery supply dc supply, in addition, also can utilize outside power supply adaptor power supply, and in order to storage battery is charged.As shown in Figure 8, be present common on the market power supply adaptor (adapter) 80, be arranged with an AC power cord 81 and a direct current power line 82 on it, wherein AC power cord 81 can be plugged in commercial power socket by plug and obtain AC power, pass through the rectification step-down of power supply adaptor 80 internal circuits and produce dc supply, and send by direct current supply line 82, this direct current supply line 82 end in addition is provided with the joint 83 of a specific standard, for being plugged on the electronic equipment of electricity consumption.
Aforesaid power mode is in daily life being accustomed to, but inconvenience and the situation that does not meet economic benefit are arranged.Reason is: the electronic installation of the listing of all big enterprises' exploitation at present, it is inconsistent with electrical specification, the related power supply adaptor that the is used voltage specification such as that makes, aspects such as joint form are all inequality, this kind situation is with notebook computer, electronic installations such as mobile phone are the most common, with the notebook computer is example, the power specification that each tame label notebook computer requires is numerous, 15V for example, 16V, 17V, 18V, 19V and 20V etc., the different notebook computer of its meaning all is equipped with the special-purpose power supply adaptor and the joint of exclusive specification, cause to each other can't be shared, and the repetition and waste of resource is very incidental.
Moreover, aforesaid power supply adaptor is because of being exclusively used in specific equipment, so except the direct current power supply that produces specific standard is given specific object, promptly there is no other use for it, in fact common people use the occasion of DC power supply a lot of in daily life, at the different different power supply adaptors of occasion buying, the degree of its wasting of resources is promptly well imagined; Person in addition is if having most power supply adaptors of planting simultaneously, in keeping and use and can produce great puzzlement.From the above, there is the repetition and waste resource in the application mode of existing power supply adapter and may causes problems such as using inconvenience, remains further to be sought feasible corresponding scheme.
Summary of the invention
The purpose of this utility model is that it is all inequality to solve aspects such as existing power supply adaptor voltages specification, joint form, technical problem that can't be general.
Provide Power Transfer Unit for reaching aforementioned purpose the utility model, comprise boxcar, a conversion lead and a more than one patchplug of establishing power source regulating circuit in one; Wherein
This boxcar is provided with a Multi-band switch, a power input part, a power supply efferent and more than one interface portion, and is connected with the inner power source regulating circuit of boxcar respectively;
This power source regulating circuit comprises:
One direct current is located between described power input part and the power supply efferent dc conversion unit;
One feedback regulation unit comprises this Multi-band switch, is located at described direct current between dc conversion unit and the power supply efferent, to regulate the output voltage of direct current to dc conversion unit;
One step-down converting unit is located between described power input part and the interface portion.
Aforesaid Power Transfer Unit can cooperate existing power supply adaptor to use, mainly make the power output end of power supply adaptor be connected with power input part on the boxcar, order conversion lead is connected with power supply efferent on the boxcar again, the user can need be switched Multi-band switch to select the DC power supply of required specification according to it, and the patchplug that can select a coupling is installed in the end in addition of conversion lead, for linking with power consumption equipment, by this, the power source regulating circuit of boxcar inside will be with the setting of Multi-band switch, to be adjusted to the DC power supply of setting specification by the DC power supply conversion that power input part is sent, and by the power supply efferent, the conversion lead, patchplug is delivered to power consumption equipment.In addition, provide at least one group interface portion on the boxcar, electricity supply and use equipment utilizes interface connector and interface portion to link, to obtain dc supply.
Technique effect of the present utility model is, a kind of Power Transfer Unit that cooperates power supply adaptor to use is being provided, its DC power supply that former power supply adaptor can be exported is according to user's switching, be adjusted to the power supply of various different sizes, and provide many group patchplugs to cooperate different power consumption equipments.Because Power Transfer Unit of the present utility model can cooperate existing power supply adaptor, and the DC power supply of output specific standard is converted to various different sizes, to be supplied to different objects respectively, can make full use of existing resource by this, and can reduce and have the multi-group power adapter simultaneously and cause puzzlement in the use.In addition, also provide a technological means by the interface portion power supply, and on electricity consumption is selected, have more elasticity.
Description of drawings
Fig. 1 is the stereogram of the utility model one preferred embodiment;
Fig. 2 is the compound mode schematic diagram of conversion lead in the utility model one preferred embodiment;
Fig. 3 is a circuit diagram of the present utility model;
Fig. 4 is the user mode schematic diagram of the utility model one preferred embodiment;
Fig. 5 is used a possible embodiments figure of power supply adaptor for the another preferred embodiment of the utility model;
Fig. 6 is used another possible embodiments figure of power supply adaptor for the another preferred embodiment of the utility model;
Fig. 7 is the utility model stereogram of a preferred embodiment again;
Fig. 8 is the stereogram of existing power supply adapter.
Description of reference numerals
The 10-boxcar; 11,11 '-power input part; 12-power supply efferent; The 13-interface portion; The 14-Multi-band switch; 20-changes lead; The 21-plug; The 22-joint; 23,27-patchplug; The 30-direct current is to dc conversion unit; The 31-PWM controller; The 32-electronic switch; The 33-free-wheel diode; The 34-outputting inductance; The 35-output capacitance; The 36-by-pass switch; The 37-input capacitance; 40-feedback regulation unit; The 41-bleeder circuit; 50-step-down converting unit; The 51-direct current is to direct current transducer; 80,80 ', 80 "-power supply adaptor; 801,801 "-the power supply efferent; 802 "-power input part; 81,81 '-AC power cord; 811 '-city plug; 812 '-patchplug; 82,82 '-direct current supply line; The 821-plug; 822,83-joint
Embodiment
About a preferred embodiment of the present utility model, at first see also shown in Figure 1ly, mainly on a boxcar 10, be arranged with a power input part 11, a power supply efferent 12, more than one interface portion 13 and a switchable Multi-band switch 14; Wherein power input part 11 is for being connected with the power output end of power supply adaptor, 12 of this power supply efferents removably connect a conversion lead 20, these conversion lead 20 1 ends are provided with the plug 21 with a power supply efferent 12 couplings, end is provided with a joint 22 in addition, for being electrically connected with a patchplug 23 sockets and formation; See also shown in Figure 2 again, this conversion lead 20 joint 22 of end in addition replacedly connects with different patchplug 24-27, each patchplug 23-27 one end and joint 22 couplings, socket and formation are electrically connected mutually, each patchplug 23-27 end in addition has the device junction of specification inequality respectively, for being plugged to power consumption equipment. again in present embodiment, this boxcar 10 is provided with two interface portion 13, this interface portion 13 and be a USB (USB) interface, have one group of power supply terminal on it, can supply the DC power supply of 5V the power consumption equipment that connects by the matched interfaces connector.
Be provided with a power source regulating circuit in the boxcar 10 again, and be connected with aforementioned power source input part 11, power supply efferent 12, interface portion 13 and Multi-band switch 14 respectively, see also shown in Figure 3ly, this power source regulating circuit comprises:
One direct current is to dc conversion unit 30, mainly by a PWM controller 31, an electronic switch 32, an input capacitance 37, a free-wheel diode 33, an outputting inductance 34, an output capacitance 35 and a by-pass switch 36, this electronic switch 32 refers to a transistor especially, this transistorized emitter, collector electrode are connected with aforementioned power source input part 11, power supply efferent 12 respectively, its base stage then is connected with an output of PWM controller 31, so that exported to the supply voltage of power supply efferent 12 by electronic switch 32 controls by PWM controller 31; PWM controller 31 has a non-inverting input (pin 1) again, when the current potential on this non-inverting input changes, will make PWM controller 31 change the pulsewidth of drive signal, thereby has regulated the supply voltage of sending to power supply efferent 12.Have in addition and know usually for the knowledgeable for affiliated technical field, based on the model of selecting integrated circuit for use not simultaneously, also can be by changing the current potential of its normal phase input end, to regulate output voltage.
Moreover, these by-pass switch 36 cross-over connections are between power input part 11 and power supply efferent 12, and be controlled by aforesaid Multi-band switch 14, when by-pass switch 36 conductings, military order makes the DC power supply of sending into power input part 11 directly deliver to power supply efferent 12, when for example Shu Ru DC power supply is 20V, can make the directly DC power supply of output 20V of power supply efferent 12, still change the low conversion efficiency problem that the 20V output voltage is derived to avoid importing 20V voltage by aforementioned bypass mode.In present embodiment, by-pass switch 36 is made of the field-effect transistor of a PMOS, its source electrode, the drain electrode be connected with power input part 11, power supply efferent 12 respectively, its grid then with Multi-band switch 14 wherein a make and break contact be connected.
In present embodiment, aforementioned direct current cooperates free-wheel diode 33, outputting inductance 34 and output capacitance 35 to constitute a buck converter (buck converter) to dc conversion unit 30, in addition, it also can be a boosting type converter (boost converter) and buck-boost type transducer (buck-boostconverter).
One feedback regulation unit 40, be located at relatively between the end of aforementioned power source efferent 12 and aforementioned PWM controller 31, this feedback regulation unit 40 comprises a bleeder circuit 41, aforementioned Multi-band switch 14 and a plurality of adjustment resistance R 3-R8, wherein bleeder circuit 41 is by resistance R 1, R2 forms, two resistance R 1, the dividing potential drop node of R2 is connected with the non-inverting input of aforementioned PWM controller 31 respectively, the end in addition of resistance R 1 connects power supply efferent 12 again, be respectively different resistances and respectively adjust resistance R 3-R8, the one end is connected with the dividing potential drop node of bleeder circuit 41, end then is connected with each make and break contact on the Multi-band switch 14 respectively in addition, the common ends ground connection of this Multi-band switch 14, when the common ends of Multi-band switch 14 when adjusting resistance R 3-R8 on the different make and break contacts connects, will make bleeder circuit 41 produce different dividing potential drop impedances, thereby on the dividing potential drop node, produce different current potentials, and feed back to the non-inverting input of direct current to the PWM controller 31 of dc conversion unit 30, according to the dividing potential drop formula
To change the output voltage of direct current to dc conversion unit 30, the user can need select the DC power supply (for example the output DC source is 19V, can select to switch to 18-15V through Multi-band switch 14) of required voltage by the switching of Multi-band switch 14 according to it.Moreover, Multi-band switch 14 is connected with the grid of aforementioned by-pass switch 36 with an one make and break contact G, when the user switches to this section, will make by-pass switch 36 grounded-grids and conducting, make the 19V DC power supply of input directly export power supply efferent 12 to, to avoid the low problem of conversion efficiency.
One step-down converting unit 50, be located between aforementioned power source input part 11 and the interface portion 13, mainly direct current transducer 51 is cooperated free-wheel diode D3 by a direct current with pulse-width modulation (PWM) function, a voltage-dropping type change-over circuit that outputting inductance L10 and output capacitance C29 etc. constitute, generally the DC power supply of being sent into by power input part 11 is relatively high pressure (20V for example, 19V etc.), after it carries out step-down conversion and voltage stabilizing through step-down converting unit 50, be supplied to the DC power supply of interface portion 13-5V, and meet the power specification of this interface portion 13, as previously mentioned, this interface portion 13 is a USB interface portion, has one group of power supply terminal (V+ on it, V-), can supply the DC power supply of 5V, when power consumption equipment is plugged to interface portion 13 on the boxcar 10 by usb interface connector, this power consumption equipment can be obtained the DC power supply of 5V by interface portion 13.
Can understand external structure, internal circuit configuration and the operation principle thereof of the utility model one preferred embodiment by above-mentioned explanation, detailed as described below as for its occupation mode:
At first see also shown in Figure 4, mainly make the aforementioned power source transition components cooperate existing power supply adaptor 80 to use, meaning is that the user can utilize the aforementioned power source transition components to cooperate the power supply adaptor 80 that had originally to obtain the power supply of different size, and be useful on the different power consumption equipments, it mainly makes the direct current supply line 82 of a power supply adaptor 80 be plugged to power input part 11 on the boxcar 10, the plug 21 of order conversion lead 20 1 ends is plugged to the power supply efferent 12 on the boxcar 10 again, then select one to be socketed in conversion lead 20 in addition on the joint 22 of end with the patchplug 23 of power consumption equipment electric connector coupling, so that utilize this patchplug 23 and power consumption equipment to link, on the other hand, the user can need be switched Multi-band switch 14 to select the DC power supply of required specification according to it, and the DC power supply conversion that the power source regulating circuit of these boxcar 10 inside is sent power input part is adjusted to the DC power supply of Multi-band switch 14 selected specifications, and by power supply efferent 12, conversion lead 20, patchplug 23 is delivered to power consumption equipment.Owing to provide a plurality of kinds of specification voltages and patchplug available,, satisfy in the different demands of different occasions for DC power supply so the consumer can fully use original power supply adaptor.
There are many small electric apparatus to obtain interface as power supply again at present on the market, and the interface portion that can power is provided on the utility model boxcar, when allowing the consumer use described small electric apparatus, on power supply is obtained, provide another selection for adopting usb interface connector.
Moreover, the power supply adaptor 80 that is used with the aforementioned power source transition components, outside its direct current supply line 82 is located on the power supply adaptor 80 divided by fixed form, also can adopt dismountable compound mode links, as shown in Figure 5, this power supply adaptor 80 ' is provided with a power supply efferent 801, for being connected with a direct current power line 82 ', this direct current supply line 82 ' one end is provided with the plug 821 with power supply efferent 801 couplings, in addition end then be provided with boxcar 10 on the joint 822 of power input part 11 couplings, by this, this direct current supply line 82 ' also can optionally make up with power supply adaptor 80 ' or separate.
Remove direct current supply line 82 ', its AC power cord 81 also can be taked identical detachable design, see also shown in Figure 6, this power supply adaptor 80 " be provided with a power input part 802 " and a power supply efferent 801 "; in present embodiment; this power input part 802 " be an AC Power supply socket, it provides an AC power cord 81 ' to connect this power input part 802 with removably "; based on aforementioned need; this AC power cord 81 ' one end is provided with city's plug 811 '; for being plugged on the commercial power socket to obtain AC power; its in addition end be provided with one with power supply adaptor 80 " go up power input part 802 " patchplug 812 ' of coupling, make power supply adaptor 80 by this " and AC power cord 81 ' between take removably to interconnect.
See also shown in Figure 7 again, be the another preferred embodiment of the utility model, the structure of this boxcar 10 and last embodiment are roughly the same, difference is in joint 22 couplings of power input part 11 ' with the aforementioned conversion lead 20 of: this boxcar 10, in other words, the conversion lead 20 that the power input part 11 ' of this boxcar 10 and power supply efferent 12 can adopt same form respectively with power supply adaptor 80 ', 80 " power supply efferent 801,801 " and patchplug 23-27 be connected, use in that selecting for use of lead is simple more and convenient.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within spirit that claim limits and scope, but they will fall in the protection range of the present utility model all.
Claims (14)
1. a Power Transfer Unit is characterized in that, described Power Transfer Unit comprises boxcar, a conversion lead and a more than one patchplug of establishing power source regulating circuit in one;
This boxcar is provided with a Multi-band switch, a power input part, a power supply efferent and more than one interface portion, and is connected with the inner power source regulating circuit of boxcar respectively, and this power source regulating circuit comprises:
One direct current is located between described power input part and the power supply efferent dc conversion unit;
One feedback regulation unit comprises this Multi-band switch, is located at described direct current between dc conversion unit and the power supply efferent, to regulate the output voltage of direct current to dc conversion unit;
One step-down converting unit is located between described power input part and the interface portion.
2. Power Transfer Unit as claimed in claim 1, it is characterized in that, this direct current is to dc conversion unit, form by this PWM controller, an electronic switch and a by-pass switch, this electronic switch is located between this power input part and this power supply efferent, and whether this electronic switch conducting is controlled by a PWM controller; This by-pass switch cross-over connection between this power input part and this power supply efferent, and by this Multi-band switch wherein a make and break contact control its break-make.
3. Power Transfer Unit as claimed in claim 2, it is characterized in that, this feedback regulation unit comprises a bleeder circuit, this Multi-band switch and a plurality of adjustment resistance, wherein this Multi-band switch has a plurality of make and break contacts and a common ends, this bleeder circuit is made up of two resistance, the dividing potential drop node of two resistance is connected with an input of described PWM controller respectively, each is adjusted resistance and is respectively different resistances, the one end is connected with the dividing potential drop node of bleeder circuit, end then is connected the common ends ground connection of this Multi-band switch respectively with each make and break contact on the Multi-band switch in addition.
4. Power Transfer Unit as claimed in claim 2, it is characterized in that, this direct current is made of a PMOS field-effect transistor the by-pass switch of dc conversion unit, the source electrode of described field-effect transistor, drain electrode are connected with this power input part and this power supply efferent respectively, and the grid of described field-effect transistor is connected to a wherein make and break contact of this Multi-band switch.
5. Power Transfer Unit as claimed in claim 4, it is characterized in that, this electronic switch is a transistor, and this transistorized emitter, collector electrode are connected with aforementioned power source input part, power supply efferent respectively, and this transistorized base stage then is connected with an output of this PWM controller.
6. Power Transfer Unit as claimed in claim 5 is characterized in that, this direct current is a buck converter, boosting type converter or buck-boost type transducer to dc conversion unit.
7. Power Transfer Unit as claimed in claim 2 is characterized in that, this step-down converting unit for by a direct current with pulse-width modulation function to voltage-dropping type change-over circuit that direct current transducer constituted.
8. Power Transfer Unit as claimed in claim 7 is characterized in that, this interface portion is a USB interface portion, described USB interface portion have one group of power supply terminal (V+, V-).
9. as each described Power Transfer Unit in the claim 1 to 8, it is characterized in that this conversion lead one end is provided with the plug with power supply efferent coupling, end is provided with a joint in addition, is electrically connected for also constituting with the patchplug socket.
10. Power Transfer Unit as claimed in claim 9 is characterized in that, each patchplug one end and the joint coupling of changing lead, and socket also constitutes electrical connection mutually, and each patchplug end in addition has the device junction of specification inequality respectively.
11. Power Transfer Unit as claimed in claim 10 is characterized in that, the joint coupling of the power input part of this boxcar and this conversion lead one end.
12. a power supply device is characterized in that, includes:
One power supply adaptor has an AC power cord and a direct current power line;
One Power Transfer Unit as each described Power Transfer Unit in the claim 1 to 11, is connected with the direct current supply line of this power supply adaptor.
13. power supply device as claimed in claim 12 is characterized in that, this power supply adaptor is provided with a power supply efferent, and the confession direct current supply line is pegged graft with removably on it;
This direct current supply line one end be provided with power supply adaptor on the plug of power supply efferent coupling, in addition end be provided with boxcar on the joint of power input part coupling.
14. as claim 12 or 13 described power supply devices, it is characterized in that, this power supply adaptor is provided with a power input part, this power input part supplies AC power cord with the power input part on the removably connection power supply adaptor, this AC power cord one end is provided with city's plug, in addition end be provided with one with power supply adaptor on the patchplug of power input part coupling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910133359.5A CN101854117A (en) | 2009-04-02 | 2009-04-02 | Power supply device and power supply switching assembly thereof |
| CN200920009487.4U CN201466968U (en) | 2009-04-02 | 2009-04-02 | Power supply device and power conversion assembly thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910133359.5A CN101854117A (en) | 2009-04-02 | 2009-04-02 | Power supply device and power supply switching assembly thereof |
| CN200920009487.4U CN201466968U (en) | 2009-04-02 | 2009-04-02 | Power supply device and power conversion assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466968U true CN201466968U (en) | 2010-05-12 |
Family
ID=50138035
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920009487.4U Expired - Fee Related CN201466968U (en) | 2009-04-02 | 2009-04-02 | Power supply device and power conversion assembly thereof |
| CN200910133359.5A Pending CN101854117A (en) | 2009-04-02 | 2009-04-02 | Power supply device and power supply switching assembly thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910133359.5A Pending CN101854117A (en) | 2009-04-02 | 2009-04-02 | Power supply device and power supply switching assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN201466968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124784A (en) * | 2014-07-25 | 2014-10-29 | 邢益涛 | Wireless charging emitter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633817A (en) * | 2012-08-22 | 2014-03-12 | 昆达电脑科技(昆山)有限公司 | Stackable power adapter |
| CN106451746A (en) * | 2016-10-18 | 2017-02-22 | 广西电网有限责任公司电力科学研究院 | Outdoor tester power supply method |
| CN106598125A (en) * | 2016-11-03 | 2017-04-26 | 威海优微科技有限公司 | Method using PWM manner to control USB PD system to output voltage |
-
2009
- 2009-04-02 CN CN200920009487.4U patent/CN201466968U/en not_active Expired - Fee Related
- 2009-04-02 CN CN200910133359.5A patent/CN101854117A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124784A (en) * | 2014-07-25 | 2014-10-29 | 邢益涛 | Wireless charging emitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101854117A (en) | 2010-10-06 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140402 |