CN101740955B - Adapter, notebook computer and energy saving method for adapter - Google Patents
Adapter, notebook computer and energy saving method for adapterDownload PDFInfo
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- CN101740955B CN101740955BCN 200810227032CN200810227032ACN101740955BCN 101740955 BCN101740955 BCN 101740955BCN 200810227032CN200810227032CN 200810227032CN 200810227032 ACN200810227032 ACN 200810227032ACN 101740955 BCN101740955 BCN 101740955B
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Abstract
Description
Technical Field
The present invention relates to power adapters, and more particularly, to a power adapter capable of saving power and a power saving method for the adapter.
Background
Common notebook computers are all provided with power adapters which are used for converting common 220V alternating current into low-voltage direct current used by the notebook computers.
In an office, most people often only pull out the plug of the adapter from the notebook when turning off the notebook, and do not want to pull out the 220V adapter. In the existing adapter, when one end is connected with 220V and the other end is not connected with a load, certain standby power consumption exists more or less, namely about 100mW is small, and about 400mW is large.
Thus, even if the adapter is not operated, the adapter still has standby power consumption of 100-400Mw because the adapter is connected with 220V alternating current. Although the standby power consumption of a single adapter is not much, as the adapters are used more and more, the standby power consumption of all adapters is not negligible, which is not in accordance with the green energy-saving and environmental-protection concept vigorously advocated today.
Most of the existing adapter power saving schemes judge the load condition and decide whether to output power, and the disadvantages of the schemes are as follows: the decision circuit will have a certain power consumption anyway in standby situations.
Disclosure of Invention
The embodiment of the invention aims to provide an adapter, a notebook computer and an adapter power saving method, which can enable the adapter to realize zero power consumption in standby and solve the technical problem that the adapter in the prior art has power consumption under the condition of standby without connecting a load.
To achieve the above object, in one aspect, there is provided an adapter including: the input end is used for connecting external alternating current; the alternating current/direct current conversion module is used for converting the alternating current into direct current; the output end is used for outputting the direct current; the adapter further comprises: the alternating current switch is connected to an alternating current circuit between the conversion module and the input end, and is used for disconnecting the alternating current connection between the conversion module and the input end when the direct current interface of the electric equipment is pulled out from the output end; and when the output end is inserted into the direct current interface of the electric equipment, the conversion module is communicated with the alternating current connection between the input end and the output end.
Preferably, in the above adapter, the ac power switch includes:
a sliding part sleeved on the mandrel of the output end,
a conductor ring provided on the sliding portion;
a first conductor half ring connected with the input end
The second conductor semi-ring is connected with the conversion module;
when the output end is used for pulling out the direct current interface of the electric equipment, the conductor ring is separated from the first conductor half ring and the second conductor half ring;
when the output end is inserted into a direct current interface of the electric equipment, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
Preferably, in the above adapter, the ac power switch includes:
a conductor ring disposed on an inner wall of the output end;
a first elastic contact electrically connected to the conductor ring;
a second elastic contact electrically connected to the conductor ring;
a first conductor half ring connected with the input end
The second conductor semi-ring is connected with the conversion module;
when the direct current interface of the electric equipment is pulled out from the output end, the first elastic contact is separated from the first conductor semi-ring, and the second elastic contact is separated from the second conductor semi-ring;
when the output end is inserted into the direct current interface of the electric equipment, the first elastic contact is in contact with the first conductor half ring, and the second elastic contact is in contact with the second conductor half ring.
In another aspect, a notebook computer is provided, including:
the computer body is provided with a computer main body,
the direct-current power supply interface is arranged on the computer body;
an adapter, the adapter comprising:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
an AC switch connected to an AC line between the conversion module and the input terminal,
when the direct current interface is pulled out of the output end, the alternating current connection between the conversion module and the input end is disconnected; and when the output end is inserted into the direct current electrical interface, the alternating current connection between the conversion module and the input end is communicated.
Preferably, in the notebook computer described above, the ac switch includes:
a sliding part sleeved on the mandrel of the output end,
a conductor ring provided on the sliding portion;
a first conductor half ring connected with the input end
The second conductor semi-ring is connected with the conversion module;
when the output end is used for pulling out the direct current interface of the electric equipment, the conductor ring is separated from the first conductor half ring and the second conductor half ring;
when the output end is inserted into a direct current interface of the electric equipment, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
Preferably, in the notebook computer described above, the ac switch includes:
a conductor ring disposed on an inner wall of the output end;
a first elastic contact electrically connected to the conductor ring;
a second elastic contact electrically connected to the conductor ring;
a first conductor half ring connected with the input end
The second conductor semi-ring is connected with the conversion module;
when the direct current interface of the electric equipment is pulled out from the output end, the first elastic contact is separated from the first conductor semi-ring, and the second elastic contact is separated from the second conductor semi-ring;
when the output end is inserted into the direct current interface of the electric equipment, the first elastic contact is in contact with the first conductor half ring, and the second elastic contact is in contact with the second conductor half ring.
In yet another aspect, a method for saving power in an adapter, the adapter including an input, an ac/dc conversion module, and an output, the method comprising:
when the direct current interface of the electric equipment is pulled out from the output end, the alternating current connection between the conversion module and the input end is disconnected;
and when the output end is inserted into the direct current interface of the electric equipment, the conversion module is communicated with the alternating current connection between the input end and the output end.
In yet another aspect, an adapter is provided, comprising:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
the sliding switch is arranged in the plug of the output end and connected to an alternating current circuit between the alternating current/direct current conversion module and the input end, the sliding switch comprises a sliding part, when the direct current interface of the electric equipment is pulled out from the output end, the sliding part is located at a first position, and the sliding switch disconnects the alternating current connection between the conversion module and the input end;
when the output end is inserted into a direct current interface of electric equipment, the sliding part is located at the second position, and the sliding switch is communicated with the alternating current connection between the conversion module and the input end.
Preferably, in the above adapter, the adapter further includes: an elastic member, through which the sliding portion abuts against the first position.
Preferably, in the above adapter, the elastic member is a spring, a spring washer or an elastic rubber washer.
Preferably, in the above adapter, the sliding part is sleeved on the core shaft of the plug,
the switch further comprises:
a conductor ring provided on the sliding portion;
a first conductor half ring connected with the input end
A second conductor half ring connected with the AC/DC conversion module,
wherein, in the first position, the conductor ring is separated from the first conductor half ring and the second conductor half ring; in the second position, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
In another aspect, a method for saving power in an adapter, the adapter including an input terminal, an ac/dc conversion module, and an output terminal, the method comprising:
when the output end of the adapter is pulled out of a direct current electrical interface of the electric equipment, the alternating current connection between the conversion module and the input end is automatically disconnected by using a slide switch;
when the output end is inserted into a direct current interface of the electric equipment, the sliding switch is communicated with the alternating current connection between the conversion module and the input end through the abutting action of the direct current interface.
Preferably, in the above method, the step of automatically disconnecting the ac electrical connection between the conversion module and the input terminal by using a slide switch specifically includes:
a conductor ring is arranged on a sliding part of the sliding switch;
the sliding switch is provided with a first conductor half ring and a second conductor half ring, the first conductor half ring is connected with the input end, and the second conductor half ring is connected with the conversion module;
the sliding portion is urged by a spring to a first position in which the conductor ring is separated from the first and second conductor half rings.
Preferably, in the above method, the step of enabling the sliding switch to communicate with the ac electrical connection between the conversion module and the input end through the abutting action of the dc electrical interface specifically includes:
the sliding part is pressed against a second position by the direct current interface, and the conductor ring is contacted with the first conductor half ring and the second conductor half ring at the second position.
The embodiment of the invention has at least the following technical effects:
1) according to the embodiment of the invention, under the no-load condition, the alternating current of the AC-DC conversion module is automatically cut off, so that the adapter can realize zero power consumption in standby;
2) the embodiment of the invention ingeniously utilizes the elastic force of the spring and the thrust of the notebook power supply connector, realizes the automatic connection and disconnection of the AC-DC conversion module to the AC through the AC switch, and has the advantages of simple implementation and cost saving.
Drawings
FIG. 1 is a block diagram of an adapter provided in a first embodiment of the present invention;
FIG. 2 is a circuit diagram of an adapter according to a first embodiment of the present invention;
FIG. 3 is a flow chart of a method provided by the first embodiment of the present invention;
fig. 4 is a block diagram of an adapter according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments is provided with reference to the accompanying drawings.
An embodiment of the present invention provides an adapter, including: the input end is used for connecting external alternating current; the alternating current/direct current conversion module is used for converting the alternating current into direct current; the output end is used for outputting the direct current; the adapter further comprises: the alternating current switch is connected to an alternating current circuit between the conversion module and the input end, and is used for disconnecting the alternating current connection between the conversion module and the input end when the direct current interface of the electric equipment is pulled out from the output end; and when the output end is inserted into the direct current interface of the electric equipment, the conversion module is communicated with the alternating current connection between the input end and the output end.
The embodiment of the invention is to improve the structure of a direct current output plug (direct current output end) of an adapter, and an alternating current switch is arranged in the plug to control a 220V zero line directly led into the plug. Only when the plug is inserted into the notebook computer, the switch is switched on, and the 220V input of the adapter is effective; when the plug is pulled out, the switch is switched off, 220V is completely cut off, the AC-DC module of the adapter completely stops working, and zero standby power consumption when the adapter is not loaded is achieved.
Fig. 1 is a structural diagram of an adapter according to a first embodiment of the present invention, and as shown in the drawing, the adapter according to the embodiment of the present invention includes:
aninput terminal 110 for connecting an external alternating current;
an ac/dc conversion module 130 (see fig. 2) for converting the ac power into dc power;
anoutput terminal 120 for outputting the direct current;
the adapter further comprises a slide switch connected to an ac line between the ac/dc conversion module 130 and theinput terminal 110, the slide switch comprises a sliding part (slider) 101, when the dc electrical interface of the electrical device is pulled out from the output terminal (i.e. when the output terminal of the adapter is unloaded), the sliding part is located at a first position, and the slide switch disconnects the ac connection between the conversion module and the input terminal;
when the output end is inserted into a direct current electrical interface of the electric equipment (namely, when the output end of the adapter is a load), the sliding part is located at the second position, and the sliding switch is communicated with the alternating current connection between the conversion module and the input end.
The structure and the principle of action of the adapter will now be described in detail:
the left side of fig. 1 shows apower connector structure 200 of a notebook computer; the right side shows the improved effect of the general power adapter plug structure. The improved adapter plug is mainly added with a slidingblock 101 and aconductor ring 102 integrated with the sliding block, and also added with aconductor half ring 103 connected with an alternating current wire AC2 and aconductor half ring 104 connected with an alternating current wire AC1 respectively.
The operation process is as follows, when the adapter plug is not inserted into the power connector of the notebook computer, theslider 101 makes theconductor loop 102 not contact with theconductor half loop 103 and theconductor half loop 104 under the action of the spring 105 (first position), so that the alternating current wires AC1 and AC2 are disconnected. When the plug is inserted into the power connector of the notebook computer, the inner boss of the power connector presses the slidingblock 101 inwards, so that the slidingblock 101 moves inwards. When inserted, theconductor loop 102 on theslider 101 is brought into contact with both theconductor half loop 103 and theconductor half loop 104, thereby connecting the alternating current wires AC1 and AC 2.
The network of wires AC1, AC2, DC +, DC-in fig. 2 correspond to the network of wires of the same name in fig. 1, respectively, and furthermore a fuse 140 is arranged on the alternating current connection. As can be seen from the description of fig. 1, when the adapter plug is not inserted into the power connector of the notebook computer, the AC1 is disconnected from the AC2, so that the AC power is completely ineffective for the AC-DC module (AC/DC conversion module) 130 of the adapter, and thus the whole adapter does not consume any power. When the adapter plug is plugged into a power connector of a notebook computer, AC1 is communicated with AC2, alternating current can be input into an AC-DC module in the adapter, and DC + in the adapter plug is also just connected with the power connector of the notebook computer, so that direct current required by the notebook computer can be output from the adapter plug.
As can be seen from the above description, the embodiment of the present invention allows the AC-DC module 130 of the adaptor to have an output only when the adaptor plug is inserted into the power connector of the notebook computer; when the adapter plug is not inserted into the power connector of the notebook computer, the AC power of the AC-DC module 130 of the adapter is completely cut off, and the adapter does not have any standby power consumption. The problem that the adapter has standby power consumption when a user does not pull the alternating current is completely solved.
In addition, in the first embodiment of the present invention, the function of the spring may be realized by other elastic members, such as: a spring washer or an elastic rubber washer. The ac power connected to the ac/dc conversion module is not limited to 220V, and may be 380V.
Correspondingly, an embodiment of the present invention further provides a power saving method for an adapter, as shown in fig. 3, where the method includes:
and step 302, under the condition that the output end is a load, enabling the sliding switch to be communicated with the alternating current connection between the conversion module and the input end through the abutting action of the load.
Fig. 4 is a structural diagram of an adapter according to a second embodiment of the present invention, and as shown in the drawing, a difference from fig. 1 is that a manner of communicating aconductor half ring 404 with aconductor half ring 403 is changed, andelastic contacts
when the output plug of the adaptor is inserted into thepower connector 410 of the notebook computer, theelastic contact 401 and theelastic contact 402 are simultaneously pressed by theinner core 411 of the power connector as the output plug of the adaptor is gradually inserted until theelastic contact 401 can be in close contact with theconductor half ring 403 and theelastic contact 402 can be in close contact with theconductor half ring 404. Theelastic contacts conductor ring 405, wherein theconductor ring 405 is embedded in the inner wall of the output end, so that the relative movement of the plug at the output end of the adapter and thepower connector 410 is not blocked in the process of gradually inserting the plug at the output end of the adapter into thepower connector 410, and therefore, the alternating current AC1 and the alternating current AC2 are switched on at the moment, power is switched on for an AC-DC module in the adapter, and the adapter works normally. When the plug at the output end of the adapter is pulled out from thepower connector 410 of the notebook computer, along with the gradual pulling out of the plug at the output end of the adapter, theelastic contact 401 and theelastic contact 402 are not squeezed by theinner core 411 of the power connector any more, theelastic contact 401 is separated from theconductor half ring 403, theelastic contact 402 is separated from theconductor half ring 404, and at the moment, the AC1 is disconnected from the AC2, so that for the AC-DC module of the adapter, the alternating current is completely ineffective, the whole adapter does not have any power consumption, and the problem that the adapter has standby power consumption when a user does not pull the alternating current is completely solved.
An embodiment of the present invention further provides a notebook computer, including: the computer comprises a computer body and a direct-current power supply interface, wherein the direct-current power supply interface is arranged on the computer body; an adapter, the adapter comprising: the input end is used for connecting external alternating current; the alternating current/direct current conversion module is used for converting the alternating current into direct current; the output end is used for outputting the direct current; the alternating current switch is connected to an alternating current circuit between the conversion module and the input end, and when the direct current electrical interface is pulled out of the output end, the alternating current connection between the conversion module and the input end is disconnected; and when the output end is inserted into the direct current electrical interface, the alternating current connection between the conversion module and the input end is communicated.
From the above, the advantages after the embodiment of the invention is adopted are:
1) according to the embodiment of the invention, under the no-load condition, the alternating current of the AC-DC conversion module is automatically cut off, so that the adapter can realize zero power consumption in standby;
2) the embodiment of the invention ingeniously utilizes the elastic force of the spring and the thrust of the notebook power supply connector, realizes the automatic connection and disconnection of the AC-DC conversion module to the AC through the AC switch, and has the advantages of simple implementation and cost saving.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An adapter, comprising:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
characterized in that the adapter further comprises:
an AC switch connected to the AC line between the conversion module and the input terminal,
wherein,
the alternating current switch is used for disconnecting the alternating current connection between the conversion module and the input end when the direct current interface of the electric equipment is pulled out from the output end;
when the output end is inserted into the direct current interface of the electric equipment, the alternating current connection between the conversion module and the input end is communicated; the alternating current switch comprises:
a sliding part sleeved on the mandrel of the output end,
a conductor ring provided on the sliding portion;
a first conductor half ring connected to the input terminal;
the second conductor semi-ring is connected with the conversion module;
when the output end is used for pulling out the direct current interface of the electric equipment, the conductor ring is separated from the first conductor half ring and the second conductor half ring;
when the output end is inserted into a direct current interface of the electric equipment, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
2. An adapter, comprising:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
characterized in that the adapter further comprises:
an AC switch connected to the AC line between the conversion module and the input terminal,
wherein,
the alternating current switch is used for disconnecting the alternating current connection between the conversion module and the input end when the direct current interface of the electric equipment is pulled out from the output end;
when the output end is inserted into the direct current interface of the electric equipment, the alternating current connection between the conversion module and the input end is communicated;
the alternating current switch comprises:
a conductor ring disposed on an inner wall of the output end;
a first elastic contact electrically connected to the conductor ring;
a second elastic contact electrically connected to the conductor ring;
a first conductor half ring connected to the input terminal;
the second conductor semi-ring is connected with the conversion module;
when the direct current interface of the electric equipment is pulled out from the output end, the first elastic contact is separated from the first conductor semi-ring, and the second elastic contact is separated from the second conductor semi-ring;
when the output end is inserted into the direct current interface of the electric equipment, the first elastic contact is in contact with the first conductor half ring, and the second elastic contact is in contact with the second conductor half ring.
3. A notebook computer, comprising:
the computer body is provided with a computer main body,
the direct-current power supply interface is arranged on the computer body;
an adapter, characterized in that the adapter comprises:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
an AC switch connected to an AC line between the conversion module and the input terminal,
when the direct current interface is pulled out of the output end, the alternating current connection between the conversion module and the input end is disconnected; when the output end is inserted into the direct current interface, the alternating current connection between the conversion module and the input end is communicated; the alternating current switch comprises:
a sliding part sleeved on the mandrel of the output end,
a conductor ring provided on the sliding portion;
a first conductor half ring connected to the input terminal;
the second conductor semi-ring is connected with the conversion module;
when the output end is used for pulling out the direct current interface of the electric equipment, the conductor ring is separated from the first conductor half ring and the second conductor half ring;
when the output end is inserted into a direct current interface of the electric equipment, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
4. A notebook computer, comprising:
the computer body is provided with a computer main body,
the direct-current power supply interface is arranged on the computer body;
an adapter, characterized in that the adapter comprises:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
an AC switch connected to an AC line between the conversion module and the input terminal,
when the direct current interface is pulled out of the output end, the alternating current connection between the conversion module and the input end is disconnected; when the output end is inserted into the direct current interface, the alternating current connection between the conversion module and the input end is communicated;
the alternating current switch comprises:
a conductor ring disposed on an inner wall of the output end;
a first elastic contact electrically connected to the conductor ring;
a second elastic contact electrically connected to the conductor ring;
a first conductor half ring connected to the input terminal;
the second conductor semi-ring is connected with the conversion module;
when the direct current interface of the electric equipment is pulled out from the output end, the first elastic contact is separated from the first conductor semi-ring, and the second elastic contact is separated from the second conductor semi-ring;
when the output end is inserted into the direct current interface of the electric equipment, the first elastic contact is in contact with the first conductor half ring, and the second elastic contact is in contact with the second conductor half ring.
5. An adapter, comprising:
the input end is used for connecting external alternating current;
the alternating current/direct current conversion module is used for converting the alternating current into direct current;
the output end is used for outputting the direct current;
the sliding switch is arranged in the plug of the output end and connected to an alternating current circuit between the alternating current/direct current conversion module and the input end;
the sliding switch comprises a sliding part which is sleeved on the core shaft of the plug;
when the direct current interface of the electric equipment is pulled out from the output end, the sliding part is located at a first position, and the sliding switch disconnects the alternating current connection between the conversion module and the input end;
when the output end is inserted into a direct current interface of electric equipment, the sliding part is located at a second position, and the sliding switch is communicated with the alternating current connection between the conversion module and the input end;
the slide switch further includes:
a conductor ring provided on the sliding portion;
a first conductor half ring connected to the input terminal;
a second conductor half ring connected with the AC/DC conversion module,
wherein, in the first position, the conductor ring is separated from the first conductor half ring and the second conductor half ring; in the second position, the conductor ring is in contact with the first conductor half ring and the second conductor half ring.
6. The adapter of claim 5, further comprising:
and the sliding part is abutted to the first position through the elastic piece.
7. The adapter of claim 6 wherein said resilient member is a spring, a spring washer or a resilient rubber washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810227032CN101740955B (en) | 2008-11-19 | 2008-11-19 | Adapter, notebook computer and energy saving method for adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810227032CN101740955B (en) | 2008-11-19 | 2008-11-19 | Adapter, notebook computer and energy saving method for adapter |
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| CN101740955A CN101740955A (en) | 2010-06-16 |
| CN101740955Btrue CN101740955B (en) | 2013-03-20 |
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| CN 200810227032ActiveCN101740955B (en) | 2008-11-19 | 2008-11-19 | Adapter, notebook computer and energy saving method for adapter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029224A1 (en)* | 2011-08-29 | 2013-03-07 | Huo Weimin | Power supply adapter with zero standby power consumption |
| CN103545851B (en)* | 2012-07-10 | 2015-11-25 | 国基电子（上海）有限公司 | Charger |
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| DE1006906B (en)* | 1955-03-29 | 1957-04-25 | Telefunken Gmbh | Suitcase radio receiver for battery and mains operation |
| GB1197299A (en)* | 1966-10-06 | 1970-07-01 | Asea Ab | Improvements in Short-Circuiting Means for Current Transformers |
- 2008
- 2008-11-19CNCN 200810227032patent/CN101740955B/enactiveActive
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1006906B (en)* | 1955-03-29 | 1957-04-25 | Telefunken Gmbh | Suitcase radio receiver for battery and mains operation |
| GB1197299A (en)* | 1966-10-06 | 1970-07-01 | Asea Ab | Improvements in Short-Circuiting Means for Current Transformers |
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| Title |
|---|
| JP平3-131086U 1991.12.27 |
| JP特开2000-166090A 2000.06.16 |
| JP特开2000-224667A 2000.08.11 |
| JP特开2001-128358A 2001.05.11 |
| JP特开2003-284342A 2003.10.03 |
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| CN101740955A (en) | 2010-06-16 |
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