CN210669602U - A charger - Google Patents
A charger Download PDFInfo
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- CN210669602U CN210669602U CN201921308458.8U CN201921308458U CN210669602U CN 210669602 U CN210669602 U CN 210669602U CN 201921308458 U CN201921308458 U CN 201921308458U CN 210669602 U CN210669602 U CN 210669602U
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Abstract
The utility model relates to a technical field that charges especially relates to a charger for be connected to the load and charge to the power, include: input, output, the subassembly that charges, outage control module and switch unit. The power-off control assembly is electrically connected between the charging assembly and the output end and can control the on-off of a circuit between the charging assembly and the output end, and the switch unit is electrically connected with the power-off control assembly and can control the on-off of the power-off control assembly. If the switch unit is in an open state, the power-off control assembly can control the on-off of a circuit between the charging assembly and the output end of the charger, if the switch unit is in a closed state, the power-off control assembly is closed, the whole charger is in a power-off state, and the power utilization safety is improved.
Description
Technical Field
The utility model discloses an embodiment relates to the technical field of charging, especially, relates to a charger.
Background
Most rechargeable electronic and electric equipment, such as mobile phones, notebook computers, electric bicycles and the like, are charged by a charger adapted to the rechargeable electronic and electric equipment. In the prior art, as long as the input end of the charger is plugged with the power supply and the output end of the charger is plugged with the charging interface of the electronic and electric equipment serving as the load, a charging path can be formed immediately to charge the load.
In general, when charging is completed, people may not be able to remove the load from the charger in time, or according to the daily usage habit of people, the charging interface of the load is generally disconnected from the output terminal of the charger, the load is put into use, but the input terminal of the charger is rarely disconnected from the power supply.
In any case, the charger is always in a power-on state electrically connected with the power supply under the condition that the output of the charger is not needed, so that unnecessary resource consumption is generated, and the service life of the charger is influenced; meanwhile, the output end of the charger is in a randomly placed exposed state, and if the output end of the charger is touched by a wet hand of a person or the ground is in contact with the output end of the charger by accumulated water, and the like, the electricity safety problems such as short circuit, electric leakage and the like can occur.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the main object of the present invention is to provide a charger, when the person is for thoroughly closing the charger, even if the output of the charger is not disconnected with the connection of the power supply, the charger can also be in the state of complete power-off.
A charger for connecting a load to a power source for charging, comprising:
the input end is used for being electrically connected with a power supply;
the output end is used for being electrically connected with a load;
the charging assembly is electrically connected with the input end;
the power-off control assembly is electrically connected between the charging assembly and the output end and is used for controlling the circuit between the charging assembly and the output end to be switched on or switched off;
and the switch unit is electrically connected with the power-off control assembly and is used for controlling the power-off control assembly to be opened or closed.
Optionally, the power-off control assembly comprises:
the switching circuit is electrically connected between the charging assembly and the output end;
the current sampling detection unit is electrically connected with the switch circuit or the output end or a line between the switch circuit and the output end and is used for sampling and detecting the output current flowing into the output end;
the single chip microcomputer is respectively electrically connected with the current sampling detection unit and the switch circuit and can control the switch circuit to be switched on or switched off according to a sampling detection signal of the current sampling detection unit; the switch unit is electrically connected with the single chip microcomputer and used for controlling the single chip microcomputer to be turned on or turned off.
Optionally, the switch unit includes a key switch or an inductive switch.
Optionally, the charging assembly includes a rectifying unit and a filtering unit electrically connected to each other, the rectifying unit is electrically connected to the input terminal, and the filtering unit is electrically connected to the power-off control assembly.
Optionally, the charging assembly further includes a high-frequency transformer electrically connected between the input terminal and the rectifying unit.
Optionally, the charging assembly further includes an EMI unit, and the EM I unit is electrically connected between the rectifying unit and the filtering unit.
The embodiment of the utility model provides a beneficial effect is: the input end is used for with power electric connection, the output end is used for with load electric connection, the subassembly and the input electric connection charge, outage control subassembly electric connection charges between subassembly and the output, can control the switching on or the disconnection of the circuit between subassembly and the output that charges, switching unit and outage control subassembly electric connection can control opening or closing of outage control subassembly. In the above structure, if the switch unit is in the on state, then the circuit break-make between the subassembly and the output that charges of charger can be controlled to the outage control subassembly, if the switch unit is in the off state, then the outage control subassembly is closed, and whole charger is in the outage state, has improved the power consumption security, prevents the short circuit of charger, electric leakage etc. and protection charger prolongs its life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of an embodiment of the present invention;
fig. 2 is a schematic diagram of an embodiment of a detailed structure of the components of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "length," "inner," "outer," "axial," "radial," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to embodiment 1 shown in fig. 1, the charger includes:
the charging device comprises an input end 1, a charging assembly 2, a power-off control assembly 3 and an output end 4 which are electrically connected in sequence; the input end 1 is used for being electrically connected with a power supply, the output end 4 is used for being electrically connected with a load, and the power-off control component 3 can control the connection or disconnection of a circuit between the charging component 2 and the output end 4; when the power-off control component 3 controls the circuit between the charging component 2 and the output terminal 4 to be conducted, the above electrically connected lines form a charging path from the power supply to the load, and the load can be charged.
The charger further comprises a switch unit 5 electrically connected with the power-off control component 3, and the switch unit 5 can control the power-off control component 3 to be turned on or turned off. The switch unit 5 may include a key switch, and may also include an inductive switch, as long as the switch unit can function to turn on or off the power-off control assembly 3, and the structure and form thereof are not particularly limited.
When the user closed switch unit 5, outage control subassembly 3 was turn-offed, and whole charger was still in the outage state under the condition of its input 1 with the power disconnection this moment, no matter output 4 inserts the load, can not have the electric current to pass through in the charger, even output 4 is because of exposing to be placed and meets ponding, still by child, pet bite, can not produce power consumption safety problems such as short circuit, electric leakage, improved the power consumption security.
When the user turns on the switch unit 5, the power-off control component 5 does not detect that the load is connected, and the output of the charger is closed;
if the power-off control component detects that a load is connected, the output of the charger is started, and at the moment, a charging path formed by the input end 1, the charging component 2, the power-off control component 3 and the output end 4 can continuously charge the load;
until the power-off control assembly 3 detects that the load is fully charged, the output of the charger can be closed, the load is prevented from being electrically connected with the charger for a long time after being fully charged, electric energy can be saved, and the load and the charger are protected.
Even if the load is not fully charged, the power-off control module 3 can detect that the output terminal 4 is not connected to the load as long as the load is removed from the output terminal 4, thereby turning off the output of the charger.
At the moment, the output of the output end of the charger still exists after the load is fully charged or removed, so that the charger and the load are protected while resources are saved. In the utility model, the load electrically connected with the output end 4 can be electronic and electric equipment such as a mobile phone, a notebook computer, an electric bicycle, an MP3 player, an electronic reader, a mobile power supply and the like; the power supply electrically connected to the input terminal 1 may be an electric power supply source such as a commercial power and a storage battery.
Example 2:
on the basis of the structure of the embodiment 1, the power-off control component 3 can be designed to include a switch circuit 31, a current sampling detection unit 32 and a single chip microcomputer 33; wherein:
the switch circuit 31 is electrically connected between the charging assembly 2 and the output terminal 4;
the current sampling detection unit 32 is used for sampling and detecting the output current flowing into the output terminal 4, and therefore, it can be electrically connected to the switch circuit 31, the output terminal 4, and the line between the switch circuit 31 and the output terminal 4. When the current sampling detecting unit 32 is electrically connected to the output terminal 4, the measured output current is most accurate, and when the current sampling detecting unit 32 is electrically connected to the circuit between the switch circuit 31 and the output terminal 4, the connection operation is most convenient. As shown in fig. 2, the current sampling detection unit 32 is electrically connected to the line between the switch circuit 31 and the output terminal 4.
The single chip microcomputer 33 is electrically connected to the current sampling detection unit 32, and is configured to receive a sampling detection signal from the current sampling detection unit 32 and control the switching on or off of the switch circuit 31 according to the sampling detection signal; the switch unit 5 is electrically connected with the single chip microcomputer 33 and controls the single chip microcomputer 33 to be turned on or turned off.
When the single chip microcomputer 33 judges that the output end 4 has no load access according to the sampling detection signal transmitted by the current sampling detection unit 32, the timing function is started, and when the timing is over for a first limited time (for example, 1 minute), the single chip microcomputer 33 sends a turn-off signal to the switch circuit 31 to turn off the output of the charger;
when the single chip microcomputer 33 judges that the output terminal 4 has a load access according to the sampling detection signal transmitted by the current sampling detection unit 32, a switch-on signal is sent to the switch circuit 31, so that the charger charges the load; it should be noted that, when the switch unit 5 is in the on state, the switch circuit 31 is in a temporary trigger on state, and the charging current that can be sampled and detected by the current sampling detection unit 32 is formed in the circuit, and this trigger on signal may be sent by the charging component 2 or the single chip microcomputer 33. Therefore, the single chip microcomputer 33 sends an on signal to the switch circuit 31 here, and maintains the state where the sub-switch circuit 31 is turned on.
When the single chip microcomputer 33 determines that the load connected to the output terminal 4 is fully charged (generally, the charging current is less than 100-.
The structure of the power-off control component 3 can conveniently judge the load condition of the output end 4, and accurately control the on-off of the circuit.
Example 3:
on the basis of the embodiment 1 or 2, the charging assembly 2 is designed to include a rectifying unit 21 and a filtering unit 22, which are electrically connected, wherein the rectifying unit 21 is electrically connected to the input terminal 1 to convert the ac power input from the input terminal 1 into a dc charging current, and the filtering unit 22 is electrically connected to the power-off control assembly 3 to filter the current to obtain a stable current signal.
Example 4:
on the basis of embodiment 3, it is also possible to design the charging component to include a high-frequency transformer 23, and the high-frequency transformer 23 is electrically connected between the input terminal 1 and the rectifying unit 21, respectively, to regulate the power supply voltage.
Example 5:
based on embodiment 3 or embodiment 4, the charging assembly is designed to include an EMI unit 24, as shown in fig. 2, the EMI unit 24 is electrically connected between the rectifying unit 21 and the filtering unit 22, and can allow a frequency signal during normal operation to enter the charger, so as to block a high-frequency interference signal, and further improve the safety and stability of the circuit.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. A charger for connecting a load to a power source for charging, comprising:
the input end is used for being electrically connected with a power supply;
the output end is used for being electrically connected with a load;
the charging assembly is electrically connected with the input end;
the power-off control assembly is electrically connected between the charging assembly and the output end and is used for controlling the circuit between the charging assembly and the output end to be switched on or switched off;
and the switch unit is electrically connected with the power-off control assembly and is used for controlling the power-off control assembly to be opened or closed.
2. The charger of claim 1, wherein the power-off control assembly comprises:
the switching circuit is electrically connected between the charging assembly and the output end;
the current sampling detection unit is electrically connected with the switch circuit or the output end or a line between the switch circuit and the output end and is used for sampling and detecting the output current flowing into the output end;
the single chip microcomputer is respectively electrically connected with the current sampling detection unit and the switch circuit and can control the switch circuit to be switched on or switched off according to a sampling detection signal of the current sampling detection unit;
the switch unit is electrically connected with the single chip microcomputer and used for controlling the single chip microcomputer to be turned on or turned off.
3. The charger of claim 1, wherein: the switch unit comprises a key switch or an inductive switch.
4. The charger according to any one of claims 1 to 3, wherein: the charging assembly comprises a rectifying unit and a filtering unit which are electrically connected, the rectifying unit is electrically connected with the input end, and the filtering unit is electrically connected with the power-off control assembly.
5. The charger of claim 4, wherein: the charging assembly further comprises a high-frequency transformer, and the high-frequency transformer is electrically connected between the input end and the rectifying unit.
6. The charger of claim 4, wherein: the charging assembly further comprises an EMI unit, and the EMI unit is electrically connected between the rectifying unit and the filtering unit.
7. The charger of claim 5, wherein: the charging assembly further comprises an EMI unit, and the EMI unit is electrically connected between the rectifying unit and the filtering unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308458.8U CN210669602U (en) | 2019-08-13 | 2019-08-13 | A charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308458.8U CN210669602U (en) | 2019-08-13 | 2019-08-13 | A charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210669602U true CN210669602U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921308458.8U Active CN210669602U (en) | 2019-08-13 | 2019-08-13 | A charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210669602U (en) |
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2019
- 2019-08-13 CN CN201921308458.8U patent/CN210669602U/en active Active
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