CN111884285A - Charger and voltage output method - Google Patents
Charger and voltage output method Download PDFInfo
- Publication number
- CN111884285A CN111884285A CN202010686978.3A CN202010686978A CN111884285A CN 111884285 A CN111884285 A CN 111884285A CN 202010686978 A CN202010686978 A CN 202010686978A CN 111884285 A CN111884285 A CN 111884285A
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- CN
- China
- Prior art keywords
- charger
- integrated circuit
- voltage
- thermistor
- transformer
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
Abstract
The invention discloses a charger and a voltage output method, belonging to the technical field of chargers, comprising a charger body, wherein two ends of the charger body are respectively connected with a plug and a charging head through connecting wires, and a circuit assembly is arranged in the charger body; the circuit assembly comprises an integrated circuit board, a capacitor, a filter, a transformer, a power tube, a thermistor, a capacitor and a detection unit. According to the charger and the voltage output method, the internal air flow is increased, the heat dissipation efficiency is improved, so that the charger is protected, when one resistor is damaged, the other one of the two thermistors can work through the other one of the two thermistors, the internal damage of the charger is avoided, the service life is prolonged, the production cost is reduced through a variable resistor mode, the output voltage is convenient to adjust, the adaptability of the charger is improved, the use requirement is met, an alarm is given out, a user is reminded, potential safety hazards are reduced, and the service life of the charger is prolonged.
Description
Technical Field
The invention relates to the technical field of chargers, in particular to a charger and a voltage output method.
Background
With the progress of science and technology and society, more and more mobile terminals such as portable notebook computers, tablet computers and smart phones are popularized in the lives of people, and with the endless emergence of the mobile terminals and the changing of functions, people are more and more away from the mobile terminals which are continuously updated. However, the volume of the mobile terminal is limited, so that the capacity of the battery of the mobile terminal is limited, and the conventional charger cannot change the internal output voltage of the mobile terminal, so that the mobile terminal has poor adaptation performance and low use efficiency
Disclosure of Invention
The invention aims to provide a charger and a voltage output method, which can increase the internal air flow and improve the heat dissipation efficiency so as to protect the charger, wherein two thermistors are connected in series, when one of the two thermistors is damaged, the other thermistor can work to avoid the internal damage of the charger and prolong the service life, the production cost is reduced by a variable resistor mode, the output voltage is convenient to adjust, the adaptability of the charger is improved, the use requirement is met, an alarm is given out to remind a user, the potential safety hazard is reduced, and the service life of the charger is prolonged, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a charger comprises a charger body, wherein two ends of the charger body are respectively connected with a plug and a charging head through connecting wires, and a circuit assembly is arranged in the charger body;
the circuit component comprises an integrated circuit board, a capacitor, a filter, a transformer, a power tube, a thermistor, a capacitor and a detection unit, wherein the capacitor, the filter, the transformer, the power tube, the thermistor, the capacitor and the detection unit are all arranged on the integrated circuit board, and the thermistor is connected between the transformer and the power tube in series.
Furthermore, radiating holes are formed in two ends of the charger body, and a supporting partition plate is arranged below the circuit assembly in the charger body.
Furthermore, four groups of capacitors are arranged and are respectively arranged on the integrated circuit board and are connected with the capacitors, the filter, the transformer and the power tube in series.
Furthermore, two groups of thermistors are arranged and are connected between the transformer and the power tube in series.
Further, the plug and the charging head are respectively connected with the circuit assembly through transmission wires.
Furthermore, a plurality of variable resistors are connected in series on the integrated circuit board, and the plurality of variable resistors are connected in series at the output end of the integrated circuit board.
The invention provides another technical scheme: a voltage output method of a charger comprises the following steps:
the method comprises the following steps: when the charger is connected with a power supply, detecting whether the output end of the charger is connected with external equipment, and when the output end is determined to be connected with the external equipment, connecting the power supply through a plug, and transmitting current into the circuit assembly through a lead in a connecting wire;
step two: after the variable resistor is connected with a power supply, a detection unit in the circuit assembly detects the resistance value of the variable resistor, and the resistance value is reduced, increased and adjusted through the variable resistor;
step three: comparing the feedback voltage with the internal reference voltage to control the output voltage, wherein the feedback voltage is the voltage obtained by dividing the output voltage by a plurality of variable resistors, and the final output voltage can be changed by changing one of the variable resistors;
step four: a thermistor is additionally arranged between the power tube and the transformer, the internal temperature and the environmental temperature are detected, and when the temperature is detected to be high, the resistance value of the thermistor is reduced and transmitted to the integrated circuit, so that the output power of the integrated circuit is reduced;
step five: when the temperature detected by the thermistor is low, the temperature is fed back to the integrated circuit, so that the output power of the integrated circuit is increased, and the power starts to be increased.
Further, for step one: when the output end of the charger is not connected with the external equipment, the charger is in a no-load state, and the detection unit detects no-load voltage and gives an alarm.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a charger and a voltage output method, wherein a supporting clapboard is arranged below a circuit component in a charger body, heat dissipation holes are arranged at two side ends, air enters an inner space of the charger body to flow in series, the flow of the inner air is increased, the heat dissipation efficiency is improved, a thermistor is additionally arranged between a power tube and a transformer, the inner temperature and the environment temperature are detected, when the temperature is detected to be high, the resistance value of the thermistor is reduced and is transmitted to an integrated circuit, the output power of the thermistor is reduced, when the temperature is detected to be low, the thermistor is fed back to the integrated circuit, the output power of the integrated circuit is increased, the power is increased, the operation is repeated, so that the charger is protected, when one of the two thermistors is damaged, the other thermistor can work, the damage in the charger is avoided, the service life is prolonged, and the feedback voltage is compared with the inner reference voltage, output voltage is controlled with this, and feedback voltage is the voltage after output voltage divides through a plurality of variable resistor, through changing wherein a variable resistor, can change final output voltage, reduce manufacturing cost through the variable resistor mode, and be convenient for adjust output voltage, improve the suitability of charger, satisfy the user demand, be in under the no-load condition at the charger through setting up detecting element, send out the police dispatch newspaper, remind the user, reduce the potential safety hazard, also increased charger life.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the overall structure of the present invention;
FIG. 4 is a top view of a circuit assembly of the present invention;
FIG. 5 is a block diagram of a circuit assembly connection of the present invention;
FIG. 6 is a block diagram of the variable resistor access voltage of the present invention.
In the figure: 1. a charger body; 11. a connecting wire; 12. a plug; 13. a charging head; 14. heat dissipation holes; 15. supporting the partition plate; 2. a circuit component; 21. an integrated circuit board; 211. a variable resistor; 22. a capacitor; 23. a filter; 24. a transformer; 25. a power tube; 26. a thermistor; 27. a capacitor; 28. a detection unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a charger includes a charger body 1, two ends of the charger body 1 are respectively connected with a plug 12 and a charging head 13 through a connecting wire 11, a circuit assembly 2 is disposed in the charger body 1, heat dissipation holes 14 are disposed at two ends of the charger body 1, a supporting partition 15 is disposed below the circuit assembly 2 in the charger body 1, the heat dissipation holes 14 are disposed at two ends of the charger body 1, so that air enters an internal space of the charger body 1 to flow in series, internal air flow is increased, and heat dissipation efficiency is improved.
Referring to fig. 3-4, the circuit assembly 2 includes an integrated circuit board 21, a capacitor 22, a filter 23, a transformer 24, a power tube 25, a thermistor 26, a capacitor 27, and a detection unit 28, the capacitor 22, the filter 23, the transformer 24, the power tube 25, the thermistor 26, the capacitor 27, and the detection unit 28 are all mounted on the integrated circuit board 21, the thermistor 26 is connected in series between the transformer 24 and the power tube 25, four sets of the capacitors 27 are respectively mounted on the integrated circuit board 21 and connected in series with the capacitor 22, the filter 23, the transformer 24, and the power tube 25, two sets of the thermistors 26 are respectively connected in series between the transformer 24 and the power tube 25, the plug 12 and the charging head 13 are respectively connected with the circuit assembly 2 through transmission wires, the thermistor 26 is additionally mounted between the power tube 25 and the transformer 24 to detect the internal temperature and the ambient temperature, when detecting that the temperature is high, thermistor 26 resistance diminishes and passes to integrated circuit, makes its output reduce, and thermistor 26 detects and feeds back to integrated circuit when the temperature is low, makes it increase output to power begins to promote, goes on repeatedly like this, thereby protects the charger, through concatenating two thermistor 26, appears damaging when one of them resistance, and the accessible is another to be worked, avoids the inside damage of charger, improves life.
Referring to fig. 5-6, the integrated circuit board 21 is connected with a plurality of variable resistors 211 in series, the plurality of variable resistors 211 are connected with the output end of the integrated circuit board 21 in series, when the charger is connected with the power supply, it is detected whether the output end of the charger is connected with the external device, when it is determined that the output end is connected with the external device, the power supply is connected through the plug 12, the current is transmitted into the circuit assembly 2 through the wire in the connection line 11, after the variable resistors 211 are connected with the power supply, the detection unit 28 in the circuit assembly 2 detects the resistance value of the variable resistors 211, the resistance value is reduced and increased through the variable resistors 211, the feedback voltage is compared with the internal reference voltage, so as to control the output voltage, and the feedback voltage is the voltage obtained by dividing the output voltage by the plurality of variable resistors 211, and the final output voltage can be changed by changing 1 of the variable resistors, reduce manufacturing cost through the varistor 211 mode, and be convenient for adjust output voltage, improve the suitability of charger, satisfy the user demand, be in under the no-load condition at the charger through setting up detecting element 28, send out the police dispatch newspaper, remind the user, reduce the potential safety hazard, also increased charger life.
In order to better show the voltage output process of the charger, the embodiment provides a voltage output method of the charger, including the following steps:
the method comprises the following steps: when the charger is connected with a power supply, detecting whether the output end of the charger is connected with external equipment, and when the output end is determined to be connected with the external equipment, connecting the power supply through the plug 12 and transmitting current into the circuit component 2 through a lead in the connecting wire 11;
step two: after the variable resistor 211 is connected to the power supply, the detection unit 28 in the circuit assembly 2 detects the resistance value of the variable resistor 211, and the resistance value is reduced and increased through the variable resistor 211;
step three: the feedback voltage is the voltage of the output voltage after being divided by a plurality of variable resistors 211, and the final output voltage can be changed by changing 1 of the variable resistors 211;
step four: a thermistor 26 is additionally arranged between the power tube 25 and the transformer 24, the internal temperature and the ambient temperature are detected, and when the detected temperature is high, the resistance value of the thermistor 26 is reduced and is transmitted to the integrated circuit, so that the output power of the integrated circuit is reduced;
step five: when the thermistor 26 detects a low temperature, it feeds back to the integrated circuit to increase its output power, so that the power starts to increase.
Aiming at the step one: when the output of the charger is not connected to an external device, the charger is in a no-load state, and the detection unit 28 detects the no-load voltage and issues an alarm.
To sum up, in the charger and the voltage output method provided by the present invention, the supporting partition 15 is disposed under the circuit component 2 in the charger body 1, the heat dissipation holes 14 are disposed at the two sides of the supporting partition, so that air enters the internal space of the charger body 1 to be serially flowed, the internal air flow is increased, the heat dissipation efficiency is improved, the thermistor 26 is additionally disposed between the power tube 25 and the transformer 24, the internal temperature and the ambient temperature are detected, when the temperature is detected to be high, the resistance of the thermistor 26 is decreased and transmitted to the integrated circuit, so that the output power is decreased, when the temperature is detected to be low, the thermistor 26 feeds back to the integrated circuit, so that the output power is increased, thereby the power starts to be increased, and the operation is repeated, thereby protecting the charger, when one of the two thermistors 26 is damaged, the other one of the resistors can work to avoid the, improve life, do the comparison with feedback voltage and inside reference voltage, thereby control output voltage, and feedback voltage is the voltage after output voltage divides the voltage through a plurality of variable resistor 211, through changing 1 of them variable resistor 211, can change final output voltage, reduce manufacturing cost through variable resistor 211 mode, and be convenient for adjust output voltage, improve the suitability of charger, satisfy the user demand, be in under the no-load condition at the charger through setting up detecting element 28, send out the police dispatch newspaper, remind the user, reduce the potential safety hazard, charger life has also been increased.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. A charger, characterized by: the charger comprises a charger body (1), wherein two ends of the charger body (1) are respectively connected with a plug (12) and a charging head (13) through connecting wires (11), and a circuit assembly (2) is arranged in the charger body (1);
the circuit component (2) comprises an integrated circuit board (21), a capacitor (22), a filter (23), a transformer (24), a power tube (25), a thermistor (26), a capacitor (27) and a detection unit (28), wherein the capacitor (22), the filter (23), the transformer (24), the power tube (25), the thermistor (26), the capacitor (27) and the detection unit (28) are all installed on the integrated circuit board (21), and the thermistor (26) is connected between the transformer (24) and the power tube (25) in series.
2. A charger according to claim 1, wherein: the charger is characterized in that heat dissipation holes (14) are formed in two ends of the charger body (1), and a supporting partition plate (15) is arranged below the circuit component (2) in the charger body (1).
3. A charger according to claim 1, wherein: the capacitors (27) are arranged in four groups, are respectively arranged on the integrated circuit board (21), and are connected with the capacitor (22), the filter (23), the transformer (24) and the power tube (25) in series.
4. A charger according to claim 1, wherein: two groups of thermistors (26) are arranged and are connected in series between the transformer (24) and the power tube (25).
5. A charger according to claim 1, wherein: the plug (12) and the charging head (13) are respectively connected with the circuit component (2) through transmission wires.
6. A charger according to claim 1, wherein: the integrated circuit board (21) is connected with a plurality of variable resistors (211) in series, and the variable resistors (211) are connected with the output end of the integrated circuit board (21) in series.
7. A voltage output method of a charger according to claim 1, characterized in that: the method comprises the following steps:
the method comprises the following steps: when the charger is connected with a power supply, detecting whether the output end of the charger is connected with external equipment, when the output end is determined to be connected with the external equipment, accessing the power supply through a plug (12), and transmitting current into the circuit component (2) through a lead in a connecting wire (11);
step two: after the variable resistor (211) is connected with a power supply, a detection unit (28) in the circuit assembly (2) detects the resistance value of the variable resistor (211), and the resistance value is reduced and increased through the variable resistor (211);
step three: the feedback voltage is the voltage of the output voltage after being divided by a plurality of variable resistors (211), and the final output voltage can be changed by changing one of the variable resistors (211);
step four: a thermistor (26) is additionally arranged between the power tube (25) and the transformer (24) to detect the internal temperature and the ambient temperature, and when the detected temperature is high, the resistance value of the thermistor (26) is reduced and transmitted to the integrated circuit, so that the output power of the integrated circuit is reduced;
step five: when the temperature is detected to be low, the thermistor (26) feeds back to the integrated circuit to increase the output power, so that the power starts to be increased.
8. The voltage output method of a charger according to claim 7, wherein: aiming at the step one: when the output of the charger is not connected to an external device, the charger is in a no-load state, and the detection unit (28) detects the no-load voltage and gives an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686978.3A CN111884285A (en) | 2020-08-25 | 2020-08-25 | Charger and voltage output method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686978.3A CN111884285A (en) | 2020-08-25 | 2020-08-25 | Charger and voltage output method |
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| Publication Number | Publication Date |
|---|---|
| CN111884285A true CN111884285A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010686978.3A Pending CN111884285A (en) | 2020-08-25 | 2020-08-25 | Charger and voltage output method |
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| CN (1) | CN111884285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631348A (en) * | 2020-12-29 | 2021-04-09 | 安徽盛世天朗软件科技有限公司 | Temperature self-adjusting network equipment temperature controller and adjusting method thereof |
| CN114039396A (en) * | 2021-11-30 | 2022-02-11 | 江西意孚欧科技有限公司 | Electronic communication equipment charging protection device with protection battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002239A (en) * | 1997-10-23 | 1999-12-14 | Alcatel | Charging current adapter circuit for cells or batteries |
| JP2009178013A (en) * | 2008-01-28 | 2009-08-06 | Hitachi Koki Co Ltd | Charger |
| CN102522888A (en) * | 2011-12-15 | 2012-06-27 | 濮阳三友电器有限公司 | Circuit and method for converting voltage |
| CN204216637U (en) * | 2014-11-26 | 2015-03-18 | 宁波高新区乐逸电子科技有限公司 | A kind of charger of automatic adjustment power output |
| CN206471876U (en) * | 2017-01-16 | 2017-09-05 | 凤冠电机（深圳）有限公司 | A kind of typeC power supply adaptors |
-
2020
- 2020-08-25 CN CN202010686978.3A patent/CN111884285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002239A (en) * | 1997-10-23 | 1999-12-14 | Alcatel | Charging current adapter circuit for cells or batteries |
| JP2009178013A (en) * | 2008-01-28 | 2009-08-06 | Hitachi Koki Co Ltd | Charger |
| CN102522888A (en) * | 2011-12-15 | 2012-06-27 | 濮阳三友电器有限公司 | Circuit and method for converting voltage |
| CN204216637U (en) * | 2014-11-26 | 2015-03-18 | 宁波高新区乐逸电子科技有限公司 | A kind of charger of automatic adjustment power output |
| CN206471876U (en) * | 2017-01-16 | 2017-09-05 | 凤冠电机（深圳）有限公司 | A kind of typeC power supply adaptors |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631348A (en) * | 2020-12-29 | 2021-04-09 | 安徽盛世天朗软件科技有限公司 | Temperature self-adjusting network equipment temperature controller and adjusting method thereof |
| CN114039396A (en) * | 2021-11-30 | 2022-02-11 | 江西意孚欧科技有限公司 | Electronic communication equipment charging protection device with protection battery |
| CN114039396B (en) * | 2021-11-30 | 2022-12-13 | 国网甘肃省电力公司金昌供电公司 | Electronic communication equipment charging protection device capable of protecting battery |
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