CN106787002A - Circuit board assemblies, Type C joints and terminal - Google Patents
Circuit board assemblies, Type C joints and terminal Download PDFInfo
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- CN106787002A CN106787002A CN201710107538.6A CN201710107538A CN106787002A CN 106787002 A CN106787002 A CN 106787002A CN 201710107538 A CN201710107538 A CN 201710107538A CN 106787002 A CN106787002 A CN 106787002A
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- Prior art keywords
- pin
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- idle
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a kind of circuit board assemblies, Type C joints and terminal, wherein, circuit board assemblies include：When being charged using USB2.0 agreements, first group of idle pin in Type C interface is connected to the energization pins in charging management chip, by second group of idle pin ground connection in Type C interface.By technical solution of the present invention, used as power pins by using the idle pin of Type C interface, the maximum allowed current at USB ends when improve charging, so as to reduce the heating probability of Type C interface, improves the experience of user.
Description
Technical field
The present invention relates to field of terminal technology, in particular to a kind of circuit board assemblies, a kind of Type-C joints and
Plant terminal.
Background technology
In the related art, the battery capacity of the terminal such as mobile phone is increasing, in order to reduce the charging interval, using super fast
Fast charging technique is also more and more universal, and main flow rapid nitriding mainly fills and filled with low-pressure direct soon including high pressure, although low-pressure direct
The heating problem for being filled soon compared to high pressure and efficiently solving mainboard chip is filled, but the low-pressure direct technology of filling also result in USB charging inlets
High current heating problem.
Type-C interfaces support positive and negative blindmate, as shown in figure 1, Type-C interfaces be conventionally used as charging have four pins,
Including VBUS (A4, A9, B4, B9) and GND (A1, A12, B1, B12), according to the Current calculation that a pin passes through 1.25A,
1.25AX4=5A, four pins can only at most bear 5A electric currents in theory, and charging current will be hot more than more than 5A or even be burnt
It is bad, and following charging current that low-pressure direct fills is certain to more than 5A.
Therefore, a kind of new circuit board assemblies how are designed, to improve Type-C interfaces during high-current low-voltage directly fills
The problem of heating, as technical problem urgently to be resolved hurrily.
The content of the invention
The present invention is based at least one above-mentioned technical problem, it is proposed that a kind of new circuit board assemblies, in circuit board
Type-C interfaces are installed on component, and Type-C interfaces are connected to charging management chip, when being charged using USB2.0 agreements,
In the presence of the idle pin of multiple, pin is left unused as power pins by using multiple, and be connected in charging management chip
Energization pins, and corresponding grounding pin, with reference to four power pins for having existed, enable Type-C interfaces to bear greatly
In the electric current of 5A, when the electric current that a pin passes through is less than or equal to 1.25A, the probability that the heating of Type-C interfaces is even burnt
Reduce, i.e., used as power pins by using the idle pin of Type-C interfaces, USB ends is maximum allowable when improve charging
Electric current, so as to reduce the heating probability of Type-C interfaces, improves the experience of user.
In view of this, the present invention proposes a kind of circuit board assemblies, including：When being charged using USB2.0 agreements, will
First group in Type-C interfaces idle pin is connected to the energization pins in charging management chip, by the in Type-C interfaces
Two groups of idle pin ground connection.
In the technical scheme, Type-C interfaces are installed on circuit board assemblies, and Type-C interfaces are connected to charging
, when being charged using USB2.0 agreements, there are multiple idle pins in managing chip, by using the idle pins of multiple as electricity
Source pin, and the energization pins in charging management chip, and corresponding grounding pin are connected to, with reference to four existed
Power pins, enable Type-C interfaces to bear the electric current more than 5A, and the electric current passed through in a pin is less than or equal to 1.25A
When, the probability reduction that the heating of Type-C interfaces is even burnt, i.e., by using the idle pin of Type-C interfaces as power pins
Use, the maximum allowed current at USB ends when improve charging, so as to reduce the heating probability of Type-C interfaces, improves use
The experience at family.
In the above-mentioned technical solutions, it is preferable that idle pin includes：Second pair of pin, the 3rd pair of pin, the tenth pair of pin
With the tenth a pair of pins.
In the technical scheme, when being charged using USB2.0 agreements, TX/RX differential signals pin (the i.e. second pair pin,
3rd pair of pin, the tenth pair of pin and the tenth a pair of pins) be idle pin, would sit idle for pin respectively as power pins with connect
Ground pin, on the premise of other functions are not influenceed, improves the maximum charging current of permission.
In addition, idle pin also includes that (sub1 and sub2, i.e., second ranked fifth row pin and second row to auxiliary signal pin
5th row pin), after using sub1 and sub2 as power pins and grounding pin, can further improve Type-C interfaces
102 maximum currents that can bear, but when using sub1 and sub2 as power pins and grounding pin, due to it is positive and negative not
With symmetry, it is necessary to note the direction of insertion of plug.
Specifically, in the pin definition of existing Type-C interfaces, Type-C interfaces include 12 pairs of pins, and are respectively
(A1,B12)、(A2,B11)、(A3,B10)、(A4,B9)、(A5,B8)、(A6,B7)、(A7,B6)、(A8,B5)、(A9,B4)、
(A10, B3), (A11, B2), (A12, B1), second pair of pin, the 3rd pair of pin, the tenth pair of pin and the tenth a pair of pins difference
It is (A2, B11), (A3, B10), (A10, B3), (A11, B2).
In any of the above-described technical scheme, it is preferable that the 3rd pair of pin is left unused with the tenth pair of pin as first group
Pin；Using second pair of pin and the tenth a pair of pins as second group of idle pin.
In the technical scheme, by the way that the 3rd pair of pin and the tenth pair of pin are defined as into first group of idle pin respectively,
I.e. as power pins, second pair of pin and the tenth a pair of pins are defined as second group of idle pin, on the one hand, can be by
The charging current that Type-C interfaces can bear is promoted to 10A, and on the other hand, the 3rd pair is corresponding to pin level with the tenth, the
Two pairs corresponding with the tenth a pair of pins level, meets when corresponding Type-C joints are inserted, positive with reverse blindmate demand.
In Type-C interfaces upon configuration, in 12 pairs of pins, as power pins including the 3rd pair, the 4th pair,
9th pair with the tenth to (A3, A4, A9, A10, B3, B4, B9, B10), as GND pin (grounding pin) including first pair,
Second pair, the 10th a pair and the 12nd to (A1, A2, A11, A12, B1, B2, B11, B12), 1.25A is passed through according to a pin
Current calculation, 1.25AX8=10A can bear 10A electric currents in theory.
Alternatively, it is also possible to using second pair, the 4th pair, the 9th pair with the 10th a pair as power pins, by first pair, the 3rd
To, the tenth pair with the 12nd pair as GND pin.
A pair idle pins can also only be increased respectively as power pins, a pair idle pins are used as GND pin.
In any of the above-described technical scheme, it is preferable that also include：Battery connector, is arranged on circuit board assemblies, electricity
Pond connector is connected to charging management chip, and battery connector is also detachably connected to battery, and electricity is given with by Type-C interfaces
Charge in pond.
In the technical scheme, battery connector is additionally provided with circuit board assemblies, battery connector is connected to charging
Managing chip, battery connector is connected with the charging connector of battery, when Type-C interfaces access power supply, to realize to electricity
The charging in pond.
Battery is specially lithium battery.
In any of the above-described technical scheme, it is preferable that charging management chip includes PE/PE+ identification chips, PE/PE+ knows
The V of other chipbusPin is connected to first group of idle pin, and the output GND pin of PE/PE+ identification chips is connected to second group of spare time
Put pin.
In the technical scheme, charging management chip includes PE/PE+ identification chips, by by PE/PE+ identification chips
VbusPin is connected to first group of idle pin, and the output GND pin of PE/PE+ identification chips is connected to second group of idle pin,
By setting PE/PE+ identification chips, realizing low pressure and fill soon, PE/PE+ identification chips are respectively connecting to by would sit idle for pin
VbusWith output GND pin, the charging current in charging process is improved, while heating is reduced, efficiency is filled in lifting soon.
In any of the above-described technical scheme, it is preferable that charging management chip also includes QC identification chips, QC identification chips
D+ pins be connected to the D+ pins of Type-C, the D- pins of QC identification chips are connected to the D- pins of Type-C.
In the technical scheme, by the way that the D+ pins of QC identification chips to be connected to the D+ pins of Type-C respectively, QC knows
The D- pins of other chip are connected to the D- pins of Type-C, and realize circuit board assemblies fills function soon.
Specifically, charging management chip can be integrated chip, and integrated chip includes that PE/PE+ identification chips are recognized with QC
Chip, by multiple integrated chips, can meet charging in many ways and set demand.
QC (Quick Charge) agreement is to charging by equipment by usb data communication port D+/D- output voltage signals
Device, has input decoding chip in charger built-in, to judge charger required voltage size.
According to a second aspect of the present invention, it is also proposed that a kind of Type-C joints, when being charged using USB2.0 agreements, will
First group of idle pin in Type-C joints is connected to the energization pins in USB interface, by second group in Type-C joints
Idle pin ground connection.
In the technical scheme, Type-C joints are installed on circuit board assemblies, and Type-C joints are connected to charging
, when being charged using USB2.0 agreements, there are multiple idle pins in managing chip, by using the idle pins of multiple as electricity
Source pin, and the energization pins in charging management chip, and corresponding grounding pin are connected to, with reference to four existed
Power pins, enable Type-C joints to bear the electric current more than 5A, and the electric current passed through in a pin is less than or equal to 1.25A
When, probability that Type-C conductor joint heatings even burn reduction, i.e., by using the idle pin of Type-C joints as power pins
Use, the maximum allowed current at USB ends when improve charging, so as to reduce the heating probability of Type-C joints, improves use
The experience at family.
In the above-mentioned technical solutions, it is preferable that idle pin includes：The group pin, the group pin, the group pin
With the tenth a pair of pins.
In the technical scheme, when being charged using USB2.0 agreements, TX/RX differential signals pin (the i.e. second pair pin,
3rd pair of pin, the tenth pair of pin and the tenth a pair of pins) be idle pin, would sit idle for pin respectively as power pins with connect
Ground pin, on the premise of other functions are not influenceed, improves the maximum charging current of permission.
In addition, idle pin also includes that (sub1 and sub2, i.e., second ranked fifth row pin and second row to auxiliary signal pin
5th row pin), after using sub1 and sub2 as power pins and grounding pin, can further improve Type-C interfaces
102 maximum currents that can bear, but when using sub1 and sub2 as power pins and grounding pin, due to it is positive and negative not
With symmetry, it is necessary to note the direction of insertion of plug.
Specifically, in the pin definition of existing Type-C interfaces, Type-C interfaces include 12 pairs of pins, and are respectively
(A1,B12)、(A2,B11)、(A3,B10)、(A4,B9)、(A5,B8)、(A6,B7)、(A7,B6)、(A8,B5)、(A9,B4)、
(A10, B3), (A11, B2), (A12, B1), second pair of pin, the 3rd pair of pin, the tenth pair of pin and the tenth a pair of pins difference
It is (A2, B11), (A3, B10), (A10, B3), (A11, B2).
In any of the above-described technical scheme, it is preferable that the 3rd pair of pin is left unused with the tenth pair of pin as first group
Pin；Using second pair of pin and the tenth a pair of pins as second group of idle pin.
In the technical scheme, by the way that the 3rd pair of pin and the tenth pair of pin are defined as into first group of idle pin respectively,
I.e. as power pins, second pair of pin and the tenth a pair of pins are defined as second group of idle pin, on the one hand, can be by
The charging current that Type-C interfaces can bear is promoted to 10A, and on the other hand, the 3rd pair is corresponding to pin level with the tenth, the
Two pairs corresponding with the tenth a pair of pins level, meets when corresponding Type-C joints are inserted, positive with reverse blindmate demand.
In Type-C interfaces upon configuration, in 12 pairs of pins, as power pins including the 3rd pair, the 4th pair,
9th pair with the tenth to (A3, A4, A9, A10, B3, B4, B9, B10), as GND pin (grounding pin) including first pair,
Second pair, the 10th a pair and the 12nd to (A1, A2, A11, A12, B1, B2, B11, B12), 1.25A is passed through according to a pin
Current calculation, 1.25AX8=10A can bear 10A electric currents in theory.
According to a third aspect of the present invention, it is also proposed that a kind of terminal, including the circuit described in any of the above-described technical scheme
Board component, therefore, the terminal includes the technique effect of the circuit board assemblies described in any of the above-described technical scheme, no longer goes to live in the household of one's in-laws on getting married herein
State.
By above technical scheme, Type-C interfaces are installed on circuit board assemblies, and Type-C interfaces are connected to and fill
, when being charged using USB2.0 agreements, there are multiple idle pins in electric managing chip, by using the idle pins of multiple as
Power pins, and the energization pins in charging management chip, and corresponding grounding pin are connected to, with reference to four for having existed
Individual power pins, enable Type-C interfaces to bear the electric current more than 5A, and the electric current passed through in a pin is less than or equal to
During 1.25A, the probability reduction that the heating of Type-C interfaces is even burnt, i.e., by using the idle pin of Type-C interfaces as power supply
Pin is used, the maximum allowed current at USB ends when improve charging, so as to reduce the heating probability of Type-C interfaces, lifting
The experience of user.
Brief description of the drawings
Fig. 1 shows the pin function schematic diagram of Type-C interfaces in correlation technique；
Fig. 2 shows the structural representation of circuit board assemblies according to an embodiment of the invention；
Fig. 3 shows the pin function schematic diagram of Type-C interfaces according to an embodiment of the invention；
Fig. 4 shows the schematic block diagram of terminal according to an embodiment of the invention.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from third party's mode described here using third party, therefore, protection scope of the present invention is not by following
The limitation of disclosed specific embodiment.
Fig. 2 shows the structural representation of circuit board assemblies according to an embodiment of the invention.
As shown in Fig. 2 circuit board assemblies 100 according to an embodiment of the invention, including：Charged using USB2.0 agreements
When, first group of idle pin in Type-C interfaces 102 is connected to the energization pins in charging management chip 104, by Type-
Second group of idle pin ground connection in C interface 102.
In the technical scheme, Type-C interfaces 102 are installed on circuit board assemblies, and Type-C interfaces 102 are connected
To charging management chip 104, when being charged using USB2.0 agreements, there are multiple idle pins, by by the idle pins of multiple
Respectively as power pins, and the energization pins in charging management chip 104, and corresponding grounding pin are connected to, with reference to
Four power pins for having existed, enable Type-C interfaces 102 to bear the electric current more than 5A, in the electricity that a pin passes through
When stream is less than or equal to 1.25A, the probability reduction that the heating of Type-C interfaces 102 is even burnt, i.e., by by Type-C interfaces 102
Idle pin used as power pins, the maximum allowed current at USB ends when improve charging connects so as to reduce Type-C
The heating probability of mouth 102, improves the experience of user.
In the above-mentioned technical solutions, it is preferable that idle pin includes：Second pair of pin, the 3rd pair of pin, the tenth pair of pin
With the tenth a pair of pins.
In the technical scheme, when being charged using USB2.0 agreements, TX/RX differential signals pin (the i.e. second pair pin,
3rd pair of pin, the tenth pair of pin and the tenth a pair of pins) be idle pin, would sit idle for pin respectively as power pins with connect
Ground pin, on the premise of other functions are not influenceed, improves the maximum charging current of permission.
In addition, idle pin also includes that (sub1 and sub2, i.e., second ranked fifth row pin and second row to auxiliary signal pin
5th row pin), after using sub1 and sub2 as power pins and grounding pin, can further improve Type-C interfaces
102 maximum currents that can bear, but when using sub1 and sub2 as power pins and grounding pin, due to it is positive and negative not
With symmetry, it is necessary to note the direction of insertion of plug.
Specifically, as shown in figure 3, in the pin definition of existing Type-C interfaces 102, Type-C interfaces 102 include
12 pairs of pins, and be respectively (A1, B12), (A2, B11), (A3, B10), (A4, B9), (A5, B8), (A6, B7), (A7, B6),
(A8, B5), (A9, B4), (A10, B3), (A11, B2), (A12, B1), second pair of pin, the 3rd pair of pin, the tenth pair of pin and
Tenth a pair of pins is respectively (A2, B11), (A3, B10), (A10, B3), (A11, B2).
Idle pin in Type-C interfaces 102 is used for power pins, including but not limited to following real-time mode.
Embodiment one：
As shown in figure 3, the pin function schematic diagram of Type-C interfaces according to an embodiment of the invention, at above-mentioned
In one technical scheme, it is preferable that using the 3rd pair of pin and the tenth pair of pin as first group of idle pin；By second pair of pin
With the tenth a pair of pins as second group of idle pin.
In the technical scheme, by the way that the 3rd pair of pin and the tenth pair of pin are defined as into first group of idle pin respectively,
I.e. as power pins, second pair of pin and the tenth a pair of pins are defined as second group of idle pin, on the one hand, can be by
The charging current that Type-C interfaces 102 can bear is promoted to 10A, and on the other hand, the 3rd pair is corresponding to pin level with the tenth,
Second pair corresponding with the tenth a pair of pins level, meets when corresponding Type-C joints are inserted, positive to be needed with reverse blindmate
Ask.
In Type-C interfaces 102 upon configuration, in 12 pairs of pins, as power pins including the 3rd pair, the 4th
To, the 9th pair with the tenth to (A3, A4, A9, A10, B3, B4, B9, B10), as GND pin (grounding pin) including first
To, second pair, the 10th a pair and the 12nd to (A1, A2, A11, A12, B1, B2, B11, B12), pass through according to a pin
1.25A Current calculations, 1.25AX8=10A can bear 10A electric currents in theory.
Embodiment two：
Can also using second pair, the 4th pair, the 9th pair with the 10th a pair as power pins, by first pair, the 3rd pair, the
Ten pairs with the 12nd pair as GND pin.
Embodiment three：
A pair idle pins can also only be increased respectively as power pins, a pair idle pins are used as GND pin.
Example IV：
Idle pin also includes that (sub1 and sub2, i.e., second ranked fifth row pin and be ranked fifth with second auxiliary signal pin
Row pin), after sub1 and sub2 is increased as power pins and grounding pin, can further improve Type-C interfaces 102
The maximum current that can bear, but when using sub1 and sub2 as power pins and grounding pin, do not have due to positive and negative
There is symmetry, it is necessary to note the direction of insertion of plug.
As shown in Fig. 2 in any of the above-described technical scheme, it is preferable that also include：Battery connector 106, is arranged at electricity
On the board component of road, battery connector 106 is connected to charging management chip 104, and battery connector 106 is also detachably connected to battery
108, charged to battery 108 with by Type-C interfaces 102.
In the technical scheme, battery connector 106 is additionally provided with circuit board assemblies, battery connector 106 is connected
To charging management chip 104, battery connector 106 is connected with the charging connector of battery 108, is accessed with Type-C interfaces 102
During power supply, the charging to battery 108 is realized.
Battery 108 is specially lithium battery 108.
In any of the above-described technical scheme, it is preferable that charging management chip 104 includes PE/PE+ identification chips, PE/PE
The V of+identification chipbusPin is connected to first group of idle pin, and the output GND pin of PE/PE+ identification chips is connected to second
The idle pin of group.
In the technical scheme, charging management chip 104 includes PE/PE+ identification chips, by by PE/PE+ identification chips
VbusPin is connected to first group of idle pin, and the output GND pin of PE/PE+ identification chips is connected to second group and leaves unused and draws
Pin, by setting PE/PE+ identification chips, realizes low pressure and fills soon, and PE/PE+ identification cores are respectively connecting to by would sit idle for pin
The V of piecebusWith output GND pin, the charging current in charging process is improved, while heating is reduced, effect is filled in lifting soon
Rate.
In any of the above-described technical scheme, it is preferable that charging management chip 104 also includes QC identification chips, QC identifications
The D+ pins of chip are connected to the D+ pins of Type-C, and the D- pins of QC identification chips are connected to the D- pins of Type-C.
In the technical scheme, by the way that the D+ pins of QC identification chips to be connected to the D+ pins of Type-C respectively, QC knows
The D- pins of other chip are connected to the D- pins of Type-C, and realize circuit board assemblies fills function soon.
Specifically, charging management chip 104 can be integrated chip, and integrated chip includes that PE/PE+ identification chips are known with QC
Other chip, by multiple integrated chips, can meet charging in many ways and set demand.
QC (Quick Charge) agreement is to charging by equipment by usb data communication port D+/D- output voltage signals
Device, has input decoding chip in charger built-in, to judge charger required voltage size.
According to a second aspect of the present invention, it is also proposed that a kind of Type-C joints, when being charged using USB2.0 agreements, will
First group of idle pin in Type-C joints is connected to the energization pins in USB interface, by second group in Type-C joints
Idle pin ground connection.
In the technical scheme, Type-C joints are installed on circuit board assemblies, and Type-C joints are connected to charging
, when being charged using USB2.0 agreements, there are multiple idle pins in managing chip, by using the idle pins of multiple as electricity
Source pin, and the energization pins in charging management chip, and corresponding grounding pin are connected to, with reference to four existed
Power pins, enable Type-C joints to bear the electric current more than 5A, and the electric current passed through in a pin is less than or equal to 1.25A
When, probability that Type-C conductor joint heatings even burn reduction, i.e., by using the idle pin of Type-C joints as power pins
Use, the maximum allowed current at USB ends when improve charging, so as to reduce the heating probability of Type-C joints, improves use
The experience at family.
In the above-mentioned technical solutions, it is preferable that idle pin includes：The group pin, the group pin, the group pin
With the tenth a pair of pins.
In the technical scheme, when being charged using USB2.0 agreements, TX/RX differential signals pin (the i.e. second pair pin,
3rd pair of pin, the tenth pair of pin and the tenth a pair of pins) be idle pin, would sit idle for pin respectively as power pins with connect
Ground pin, on the premise of other functions are not influenceed, improves the maximum charging current of permission.
In addition, idle pin also includes auxiliary signal pin (sub1 and sub2), sub1 and sub2 is being used as power supply
When pin and grounding pin, due to it is positive and negative without symmetry, it is necessary to note the direction of insertion of plug.
Specifically, in the pin definition of existing Type-C interfaces, Type-C interfaces include 12 pairs of pins, and are respectively
(A1,B12)、(A2,B11)、(A3,B10)、(A4,B9)、(A5,B8)、(A6,B7)、(A7,B6)、(A8,B5)、(A9,B4)、
(A10, B3), (A11, B2), (A12, B1), second pair of pin, the 3rd pair of pin, the tenth pair of pin and the tenth a pair of pins difference
It is (A2, B11), (A3, B10), (A10, B3), (A11, B2).
In any of the above-described technical scheme, it is preferable that the 3rd pair of pin is left unused with the tenth pair of pin as first group
Pin；Using second pair of pin and the tenth a pair of pins as second group of idle pin.
In the technical scheme, by the way that the 3rd pair of pin and the tenth pair of pin are defined as into first group of idle pin respectively,
I.e. as power pins, second pair of pin and the tenth a pair of pins are defined as second group of idle pin, on the one hand, can be by
The charging current that Type-C interfaces can bear is promoted to 10A, and on the other hand, the 3rd pair is corresponding to pin level with the tenth, the
Two pairs corresponding with the tenth a pair of pins level, meets when corresponding Type-C joints are inserted, positive with reverse blindmate demand.
In Type-C interfaces upon configuration, in 12 pairs of pins, as power pins including the 3rd pair, the 4th pair,
9th pair with the tenth to (A3, A4, A9, A10, B3, B4, B9, B10), as GND pin (grounding pin) including first pair,
Second pair, the 10th a pair and the 12nd to (A1, A2, A11, A12, B1, B2, B11, B12), 1.25A is passed through according to a pin
Current calculation, 1.25AX8=10A can bear 10A electric currents in theory.
Fig. 4 shows the schematic block diagram of terminal according to an embodiment of the invention.
As shown in figure 4, terminal 200 according to an embodiment of the invention, including the electricity described in any of the above-described technical scheme
Road board component 100, therefore, the terminal 200 includes the technology effect of the circuit board assemblies 100 described in any of the above-described technical scheme
Really, will not be repeated here.
Technical scheme is described in detail above in association with accompanying drawing, it is contemplated that how to improve high current in correlation technique
Low-pressure direct fill during Type-C interfaces heating problem, the present invention propose a kind of new circuit board assemblies, in circuit board group
Type-C interfaces are installed on part, and Type-C interfaces are connected to charging management chip, when being charged using USB2.0 agreements, deposit
In the idle pin of multiple, pin is left unused as power pins by using multiple, and be connected to the confession in charging management chip
Electric pin, and corresponding grounding pin, with reference to four power pins for having existed, enable Type-C interfaces to bear to be more than
The electric current of 5A, when the electric current that a pin passes through is less than or equal to 1.25A, the probability drop that the heating of Type-C interfaces is even burnt
It is low, i.e., used as power pins by using the idle pin of Type-C interfaces, the maximum allowable electricity at USB ends when improve charging
Stream, so as to reduce the heating probability of Type-C interfaces, improves the experience of user.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of circuit board assemblies, are provided with Type-C interfaces, the Type-C and Charge Management core on the circuit board assemblies
Piece is electrically connected with, it is characterised in that
When being charged using USB2.0 agreements, first group of idle pin in the Type-C interfaces is connected to the charging valve
Energization pins in reason chip, by second group of idle pin ground connection in the Type-C interfaces.
2. circuit board assemblies according to claim 1, it is characterised in that the idle pin includes：
Second pair of pin, the 3rd pair of pin, the tenth pair of pin and the tenth a pair of pins.
3. circuit board assemblies according to claim 2, it is characterised in that
Using the 3rd pair of pin and the described ten pair of pin as described first group idle pin；
Using second pair of pin and described tenth a pair of pins as described second group idle pin.
4. circuit board assemblies according to any one of claim 1 to 3, it is characterised in that also include：
Battery connector, is arranged on the circuit board assemblies, and the battery connector is connected to the charging management chip, institute
State battery connector and be also detachably connected to battery, charged to the battery with by the Type-C interfaces.
5. circuit board assemblies according to claim 4, it is characterised in that
The charging management chip includes PE/PE+ identification chips, the V of the PE/PE+ identification chipsbusPin is connected to described
First group of idle pin, the output GND pin of the PE/PE+ identification chips is connected to described second group idle pin.
6. circuit board assemblies according to claim 5, it is characterised in that
The charging management chip also includes QC identification chips, and the D+ pins of the QC identification chips are connected to the Type-C's
D+ pins, the D- pins of the QC identification chips are connected to the D- pins of the Type-C.
7. a kind of Type-C joints, the Type-C joints are connected to USB interface by data wire, and the Type-C joints can also
Enough it is plugged to the Type-C interfaces as any one of claim 1 to 6, it is characterised in that
When being charged using USB2.0 agreements, first group of idle pin in the Type-C joints is connected to the USB and is connect
Energization pins in mouthful, by second group of idle pin ground connection in the Type-C joints.
8. Type-C joints according to claim 1, it is characterised in that the idle pin includes：
Second pair of pin, the 3rd pair of pin, the tenth pair of pin and the tenth a pair of pins.
9. Type-C joints according to claim 1, it is characterised in that
Using the 3rd pair of pin and the described ten pair of pin as described first group idle pin；
Using second pair of pin and described tenth a pair of pins as described second group idle pin.
10. a kind of terminal, it is characterised in that including：Circuit board assemblies any one of 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107538.6A CN106787002A (en) | 2017-02-27 | 2017-02-27 | Circuit board assemblies, Type C joints and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107538.6A CN106787002A (en) | 2017-02-27 | 2017-02-27 | Circuit board assemblies, Type C joints and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106787002A true CN106787002A (en) | 2017-05-31 |
Family
ID=58958971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107538.6A Withdrawn CN106787002A (en) | 2017-02-27 | 2017-02-27 | Circuit board assemblies, Type C joints and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106787002A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232196A (en) * | 2008-02-02 | 2008-07-30 | 中兴通讯股份有限公司 | Control circuit of charging mode in USB charging stand and method thereof |
| CN105630724A (en) * | 2016-01-27 | 2016-06-01 | 深圳慧能泰半导体科技有限公司 | USB Type-C system control circuit |
| CN106099464A (en) * | 2016-04-20 | 2016-11-09 | 乐视控股（北京）有限公司 | USB Type C plug |
-
2017
- 2017-02-27 CN CN201710107538.6A patent/CN106787002A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232196A (en) * | 2008-02-02 | 2008-07-30 | 中兴通讯股份有限公司 | Control circuit of charging mode in USB charging stand and method thereof |
| CN105630724A (en) * | 2016-01-27 | 2016-06-01 | 深圳慧能泰半导体科技有限公司 | USB Type-C system control circuit |
| CN106099464A (en) * | 2016-04-20 | 2016-11-09 | 乐视控股（北京）有限公司 | USB Type C plug |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
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| WW01 | Invention patent application withdrawn after publication |