CN108281990A - Electronic equipment - Google Patents
Electronic equipment Download PDFInfo
- Publication number
- CN108281990A CN108281990A CN201710007381.XA CN201710007381A CN108281990A CN 108281990 A CN108281990 A CN 108281990A CN 201710007381 A CN201710007381 A CN 201710007381A CN 108281990 A CN108281990 A CN 108281990A
- Authority
- CN
- China
- Prior art keywords
- circuit
- diode
- electrically connected
- electronic equipment
- mobile phone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/80—Electronic components, circuits, software, systems or apparatus used in telephone systems line protection circuits such as current or overvoltage protection circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Telephone Set Structure (AREA)
Abstract
The disclosure belongs to equipment design field about a kind of electronic equipment, which includes at least two diodes, charging port and with electrical component, wherein：The power pins of the charging port and the anode of the supply port with electrical component are electrically connected, and the grounding pin of the charging port and the cathode of the supply port with electrical component are electrically connected；The cathode of each diode is electrically connected with first line respectively, the anode of each diode is electrically connected with the second circuit respectively, wherein, the first line is the circuit being electrically connected between the power pins and the anode of supply port, and second circuit is the circuit being electrically connected between the grounding pin and the cathode of supply port.The disclosure solves the problem of surge is passed to mobile phone, is easily damaged the circuit of interior of mobile phone by the USB port of mobile phone；Reach and provide protection for the circuit of interior of mobile phone, has avoided the effect of the circuit of surge damage interior of mobile phone.
Description
Technical field
This disclosure relates to equipment design field, more particularly to a kind of electronic equipment.
Background technology
When charger for mobile phone when charging, charger accesses the production surge easy in a flash of power supply, and surge is beyond just
The transient overvoltage of normal operating voltage.Surge is passed to mobile phone by the USB port of mobile phone, is easily damaged the circuit of interior of mobile phone.
The circuit of surge damage interior of mobile phone in order to prevent is badly in need of a kind of measure carrying out carrying out surge protection to mobile phone.
Invention content
In order to solve the problem of that surge is passed to the circuit that mobile phone is easily damaged interior of mobile phone by the USB port of mobile phone, this
It is open that a kind of electronic equipment is provided.The technical solution is as follows：
According to the first aspect of the embodiments of the present disclosure, a kind of electronic equipment is provided, the electronic equipment includes at least two
Diode, charging port and with electrical component, wherein：The power pins of the charging port and the supply port with electrical component
Anode be electrically connected, the cathode of the grounding pin of the charging port and the supply port with electrical component is electrically connected；
The cathode of each diode is electrically connected with first line respectively, and the anode of each diode electrically connects with the second circuit respectively
It connecing, wherein the first line is the circuit being electrically connected between the power pins and the anode of supply port, described second
Circuit is the circuit being electrically connected between the grounding pin and the cathode of supply port.By for electricity consumption modules in parallel at least two
A diode；Since number of diodes in parallel is more, the all-in resistance of diode is smaller, and clamp voltage is lower, therefore solves
The problem of surge is passed to mobile phone, is easily damaged the circuit of interior of mobile phone by the USB port of mobile phone；Reach for interior of mobile phone
Circuit provides protection, avoids the effect of the circuit of surge damage interior of mobile phone.
Optionally, the cathode of the diode is electrically connected by tertiary circuit and the first line, the diode
Anode be electrically connected by the 4th circuit and second circuit, the tertiary circuit and/or the 4th circuit are in circuit
Width on plate is more than default value.
Optionally, the resistivity of the tertiary circuit and/or the 4th circuit is less than predetermined resistivity.
Optionally, the length of the circuit between the power pins and the diode is less than predetermined length.
Optionally, the 4th circuit and second connection are on same sheet metal, the 4th circuit and institute
The distance between the first tie point and the second tie point of second circuit and the sheet metal for stating sheet metal are more than predetermined
Distance, the sheet metal are connected with the grounding pin.
Optionally, the clamp voltage of the diode is less than default surge voltage value.
Optionally, the diode is Transient Suppression Diode.
Optionally, the charging port is USB port.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
It is open.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is the structural schematic diagram according to a kind of electronic equipment shown in an exemplary embodiment；
Fig. 2 is the schematic diagram of the clamp voltage and current curve according to the diode shown in an exemplary embodiment.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is according to the structural schematic diagram of a kind of electronic equipment shown in an exemplary embodiment, as shown in Figure 1, the electricity
Sub- equipment includes at least two diodes 110, charging port 120 and with electrical component 130.
The power pins 120a of charging port 120 and the positive 130a of the supply port with electrical component 130 are electrically connected, and are filled
The grounding pin 120b of electric port 120 is connect with the electrical 130b of the cathode of the supply port of electrical component.
In the present embodiment, the circuit being electrically connected between power pins 120a and the positive 130a of supply port is known as
The circuit being electrically connected between grounding pin 120b and the cathode 130b of supply port is known as the second circuit by one circuit.
The cathode of each diode is electrically connected with first line respectively, the anode of each diode respectively with the second circuit
It is electrically connected.
Fig. 2 is the schematic diagram of the clamp voltage and current curve according to the diode shown in an exemplary embodiment, such as Fig. 2
Shown, the ratio between clamp voltage and electric current is the resistance value that diode is reversed after breakdown, is hit since diode is reversed
Resistance value after wearing will not change, therefore the clamp voltage of diode and electric current are proportional.
After diode is punctured by surge, which can be the voltage clamp at itself both ends in a scheduled numerical value
On, which is known as clamp voltage, and it is clamp voltage to need the voltage born with electrical component in this way, to avoid with electrical component by
To the impact of the spike of surge.
In the case where the electric current of diode is constant, the resistance of diode is positively correlated with the clamp voltage of the diode,
That is, the resistance of diode is smaller, clamp voltage is smaller.By the calculation formula of parallel resistanceIt is found that in, the all-in resistance of diode more with number of diodes in parallel on electrical component
Smaller, the clamp voltage of diode is also smaller so that the voltage born with electrical component is lower, and surge protection effect is better.
In conclusion the electronic equipment that the disclosure provides, by at least two diode of electricity consumption modules in parallel；Due to simultaneously
The number of diodes of connection is more, and the all-in resistance of diode is smaller, and clamp voltage is lower, therefore solves surge and pass through mobile phone
USB port is passed to mobile phone, the problem of being easily damaged the circuit of interior of mobile phone；Reach and provide protection for the circuit of interior of mobile phone,
Avoid the effect of the circuit of surge damage interior of mobile phone.
In order to more specifically illustrate in electronic equipment the structure of ESD and with the connection relation of connecting seat, following embodiments
For describing the various possible compositions of ESD.
Optionally, the cathode of diode is electrically connected by tertiary circuit and first line, and the anode of diode passes through the
Four circuits and the second circuit are electrically connected, and the width of tertiary circuit and/or the 4th circuit on circuit boards is more than default value.
In the case of temperature-resistant, by resistivity expression formulaIt is found that constant in resistance and line length
In the case of, the resistance of circuit can be reduced by widening circuit, to reduce the partial pressure of circuit, and then reduce the clamper electricity of diode
It presses, therefore widen tertiary circuit and/or the 4th circuit to achieve the purpose that reduce voltage.
Optionally, the resistivity of tertiary circuit and/or the 4th circuit is less than predetermined resistivity.
By resistivity expression formulaIt is found that resistivity it is small the corresponding resistance of circuit it is small, the partial pressure of circuit also compared with
It is small, therefore the resistivity of tertiary circuit and/or the 4th circuit is less than predetermined resistivity and can achieve the purpose that reduce voltage.
Optionally, the length of the circuit between power pins 120a and diode is less than predetermined length.
The length of circuit between diode and power pins is smaller, when surge is called in along first line, two poles
It is grounded rapidly by Guan Yueneng, to the signal for avoiding surging signal interference All other routes from being transmitted, prevents circuit from damaging.
Optionally, referring also to Fig. 1, the 4th circuit and the second connection are on sheet metal 140, the 4th circuit and sheet metal
140 the first tie point 140a and the distance between the second circuit and the second tie point 140b of sheet metal 140 are more than pre- spacing
From sheet metal 140 is connected with grounding pin.
The the first tie point 140a and the second circuit of 4th circuit and sheet metal and the second tie point 140b of sheet metal it
Between distance it is bigger, when surge enters sheet metal by the 4th circuit, be more avoided that the All other routes being connect with metallic plate are passed
The signal passed is interfered, and prevents circuit from damaging.
Optionally, the area of sheet metal 140 is more than predetermined area.
The area of sheet metal is bigger, is more avoided that signal that the All other routes being connect with metallic plate are transmitted by surge
Interference.
Optionally, the clamp voltage of diode is less than default surge voltage value.
The default surge voltage value is the voltage value that can bear with electrical component.
It is then the clamped voltage value of the diode with the voltage value of electrical component to be born after diode is breakdown,
Therefore the clamp voltage of diode is less than default surge voltage value, and the electricity consumption component voltage to be born can be made to be less than the use
The voltage value that can bear of electrical component avoids being broken by surge with electrical component.
Optionally, which is Transient Suppression Diode.
Optionally, which is USB port.
In conclusion the electronic equipment that the disclosure provides, by at least two diode of electricity consumption modules in parallel；Due to simultaneously
The number of diodes of connection is more, and the all-in resistance of diode is smaller, and clamp voltage is lower, therefore solves surge and pass through mobile phone
USB port is passed to mobile phone, the problem of being easily damaged the circuit of interior of mobile phone；Reach and provide protection for the circuit of interior of mobile phone,
Avoid the effect of the circuit of surge damage interior of mobile phone.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and includes the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (8)
1. a kind of electronic equipment, which is characterized in that the electronic equipment includes at least two diodes, charging port and electricity consumption group
Part, wherein：
The power pins of the charging port and the anode of the supply port with electrical component are electrically connected, the charging port
The cathode of grounding pin and the supply port with electrical component be electrically connected；
The cathode of each diode is electrically connected with first line respectively, and the anode of each diode is electrical with the second circuit respectively
Connection, wherein the first line is the circuit being electrically connected between the power pins and the anode of supply port, described the
Two circuits are the circuits being electrically connected between the grounding pin and the cathode of supply port.
2. electronic equipment according to claim 1, which is characterized in that the cathode of the diode passes through tertiary circuit and institute
First line electric connection is stated, the anode of the diode is electrically connected by the 4th circuit and second circuit, and described the
The width of three circuits and/or the 4th circuit on circuit boards is more than default value.
3. electronic equipment according to claim 2, which is characterized in that the tertiary circuit and/or the 4th circuit
Resistivity is less than predetermined resistivity.
4. electronic equipment according to claim 1, which is characterized in that the line between the power pins and the diode
The length on road is less than predetermined length.
5. electronic equipment according to claim 2, which is characterized in that the 4th circuit exists with second connection
On same sheet metal, the first tie point and second circuit and the sheet metal of the 4th circuit and the sheet metal
The distance between second tie point is more than preset distance, and the sheet metal is connected with the grounding pin.
6. electronic equipment according to claim 1, which is characterized in that the clamp voltage of the diode is less than default surge
Voltage value.
7. electronic equipment according to claim 1, which is characterized in that the diode is Transient Suppression Diode.
8. electronic equipment according to claim 1, which is characterized in that the charging port is USB port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007381.XA CN108281990B (en) | 2017-01-05 | 2017-01-05 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007381.XA CN108281990B (en) | 2017-01-05 | 2017-01-05 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108281990A true CN108281990A (en) | 2018-07-13 |
| CN108281990B CN108281990B (en) | 2021-08-03 |
Family
ID=62800586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710007381.XA Active CN108281990B (en) | 2017-01-05 | 2017-01-05 | Electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108281990B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203233159U (en) * | 2013-05-15 | 2013-10-09 | 成都市宏山科技有限公司 | MP3 player with electrostatic protection and surge protection |
| CN103595267A (en) * | 2012-08-17 | 2014-02-19 | 纬创资通股份有限公司 | Power Adapter |
| CN203967752U (en) * | 2014-07-16 | 2014-11-26 | 深圳市普方科技有限公司 | Be connected to the protective device between power supply and power supply unit thereof |
-
2017
- 2017-01-05 CN CN201710007381.XA patent/CN108281990B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595267A (en) * | 2012-08-17 | 2014-02-19 | 纬创资通股份有限公司 | Power Adapter |
| CN203233159U (en) * | 2013-05-15 | 2013-10-09 | 成都市宏山科技有限公司 | MP3 player with electrostatic protection and surge protection |
| CN203967752U (en) * | 2014-07-16 | 2014-11-26 | 深圳市普方科技有限公司 | Be connected to the protective device between power supply and power supply unit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108281990B (en) | 2021-08-03 |
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