CN110416849B - Data line with temperature overtemperature protection function - Google Patents
Data line with temperature overtemperature protection function Download PDFInfo
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- CN110416849B CN110416849B CN201910677867.3A CN201910677867A CN110416849B CN 110416849 B CN110416849 B CN 110416849B CN 201910677867 A CN201910677867 A CN 201910677867A CN 110416849 B CN110416849 B CN 110416849B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Protection Of Static Devices (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a data line with a temperature over-temperature protection function, which comprises a USB3.0 connector; the USB3.0 connector is provided with a first pin, a second pin, a third pin and a fourth pin which are arranged side by side, and an IC chip, a first resistor and a temperature acquisition chip are also connected on the fourth pin in series; the temperature acquisition chip is used for acquiring the working temperature of the USB3.0 connector and outputting induction voltage to the IC chip according to the working temperature; the IC chip is used for comparing the working temperature of the USB3.0 connector with a preset temperature threshold value, and when the working temperature exceeds the preset temperature threshold value, the IC chip automatically disconnects the power supply. The temperature acquisition chip with small volume and sensitive temperature sensing is adopted, and when the temperature acquisition chip is normally used, the power supply can be automatically disconnected when the working temperature is too high, so that the equipment is effectively protected from being damaged, and the USB3.0 connector stops supplying power.
Description
Technical Field
The invention relates to the field of data lines, in particular to a data line with a temperature over-temperature protection function.
Background
The existing data line has the functions of charging and data transmission, and because the existing data line has no over-temperature protection function, when the working temperature of the charging equipment and the data line is too high, the data transmission is influenced, and the data line and the equipment connected with the data line are damaged, and especially when a user leaves the charging process or the user sleeps at night and places a mobile phone beside the charging process for charging, the occurrence of safety accidents cannot be estimated.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a data line with a temperature over-temperature protection function so as to overcome the defects in the prior art.
In order to achieve the above object, the present invention provides a data line having a temperature over-temperature protection function, the data line including a USB3.0 connector and a TYPE-C connector connected to both ends of a data transmission line; the USB3.0 connector comprises a first pin, a second pin, a third pin and a fourth pin which are arranged side by side, the first pin, the second pin, the third pin and the fourth pin are respectively connected with a red wiring, a white wiring, a green wiring and a black wiring through a power management chip on the PCBA, and an IC chip, a first resistor and a temperature acquisition chip are further connected onto the fourth pin in series; the temperature acquisition chip is used for acquiring the working temperature of the USB3.0 connector and outputting induction voltage to the IC chip according to the working temperature; the IC chip is used for comparing the working temperature of the USB3.0 connector with a preset temperature threshold value, and when the working temperature exceeds the preset temperature threshold value, the IC chip automatically disconnects the power supply.
By adopting the technical scheme, the temperature acquisition chip is arranged in the connector at the output end of the data line, and when the temperature exceeds the preset temperature threshold value in work, the power supply can be automatically cut off, so that the output end stops supplying power, and the equipment can be effectively protected from being damaged in normal use.
As a further description of the data line with the temperature over-temperature protection function, preferably, the IC chip includes a first diode, a triode, a second resistor, a capacitor, a third resistor, a fourth resistor, a voltage comparator, a second diode, and a fifth resistor, wherein an anode of the first diode is connected to the first pin, and a cathode of the first diode is connected to an emitter of the triode and one end of the third resistor, respectively; the collector of the triode is connected with one end of a second resistor, the other end of the second resistor is respectively connected with one end of a capacitor and a VCC pin of a power management chip, the other end of the capacitor is connected with a black connection wire, the other end of a third resistor is respectively connected with one end of a fourth resistor and the VCC pin of a temperature acquisition chip, and the other end of the fourth resistor is connected with a power input end of a voltage comparator; the OUT pin of the temperature acquisition chip is connected with one end of a first resistor, the other end of the first resistor is connected with the homodromous end of a voltage comparator, the reverse end of the voltage comparator is connected with the REF pin of the power management chip, the output end of the voltage comparator is connected with the anode of a second diode, the cathode of the second diode is connected with one end of a fifth resistor, the other end of the fifth resistor is connected with the base electrode of a triode, and the grounding end of the voltage comparator is connected with a black connection wire.
By adopting the technical scheme, the working temperature acquired by the temperature acquisition chip is too high, and the IC chip is disconnected from the power management chip and the USB3.0 connector, so that the USB3.0 connector stops supplying power.
For further explanation of the data line with the over-temperature protection function, it is preferable that the first pin is connected to the a4 pin, the a9 pin, the B4 pin and the B9 pin of the TYPE-C connector through red wiring, the second pin is connected to the a7 pin and the B7 pin of the TYPE-C connector through white wiring, the third pin is connected to the A6 pin and the B6 pin of the TYPE-C connector through green wiring, and the fourth pin is connected to the a1 pin, the a12 pin, the B1 pin and the B12 pin of the TYPE-C connector through black wiring.
As a further description of the data line with the over-temperature protection function, preferably, a sixth resistor is connected to the a4 pin or the a9 pin, a seventh resistor is connected to the B4 pin or the B9 pin, and the resistance of the sixth resistor and the seventh resistor is 56K Ω.
By adopting the technical scheme, the data line can support the quick charging function.
As a further description of the data line with the over-temperature protection function, preferably, the first pin, the second pin, the third pin and the fourth pin are embedded in the upper surface of the isolation seat, and the temperature acquisition chip is embedded in the front side of the isolation seat.
By adopting the technical scheme, the temperature of the connection part of the USB3.0 connector and the power supply is detected by the temperature acquisition chip, and the detection accuracy is improved.
As a further description of the data line with the over-temperature protection function, the upper limit of the operating temperature of the USB3.0 connector is preferably 70 degrees.
As a further description of the data line with the over-temperature protection function, the model of the temperature acquisition chip is preferably ADS 7841.
The invention has the following beneficial effects: the temperature acquisition chip is arranged in the connector at the output end of the data line, when the temperature exceeds 70 ℃ in work, the temperature acquisition chip acquires the temperature exceeding 70 ℃ and can automatically cut off the power supply, so that the output end stops supplying power, the temperature acquisition chip has small volume and sensitive temperature sensing, can effectively protect equipment from being damaged in normal use, can automatically protect the equipment after being used for a long time, does not need special personnel to watch, and cannot influence the normal function of the product due to environmental change.
Drawings
FIG. 1 is a schematic structural diagram of a data line with an over-temperature protection function according to the present invention;
fig. 2 is a schematic circuit diagram of an IC chip of the present invention.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a data line with a temperature over-temperature protection function according to the present invention; a data line with the over-temperature protection function of the temperature, including connecting to USB3.0 connector P1 and TYPE-C connector P2 of both ends of the data transmission line; the USB3.0 connector P1 comprises a first pin 1, a second pin 2, a third pin 3 and a fourth pin 4 which are arranged side by side, wherein the first pin 1, the second pin 2, the third pin 3 and the fourth pin 4 are respectively connected with a red wiring, a white wiring, a green wiring and a black wiring through a power management chip 8 on PCBA, the first pin 1 is connected with an A4 pin, an A9 pin, a B4 pin and a B9 pin of a TYPE-C connector P2 through the red wiring, the second pin 2 is connected with an A7 pin and a B7 pin of the TYPE-C connector P2 through the white wiring, the third pin 3 is connected with an A6 pin and a B6 pin of a TYPE-C connector P2 through the green wiring, and the fourth pin 4 is connected with an A1 pin, an A12, a B1 and a B12 pin of the TYPE-C connector P2 through the black wiring.
The fourth pin 4 is also connected in series with an IC chip 5, a first resistor 6 and a temperature acquisition chip 7; the first pin 1, the second pin 2, the third pin 3 and the fourth pin 4 are embedded on the upper surface of the isolation seat 9, and the temperature acquisition chip 7 is embedded on the front side of the isolation seat 9. The temperature acquisition chip 7 is used for acquiring the working temperature of the USB3.0 connector P1 and outputting induction voltage to the IC chip 5 according to the working temperature; the IC chip 5 is used for comparing the working temperature of the USB3.0 connector P1 with a preset temperature threshold, and when the working temperature exceeds the preset temperature threshold, the IC chip 5 automatically cuts off the power supply. The upper limit of the working temperature of the USB3.0 connector P1 is 70 degrees, namely, the temperature acquisition chip 7 acquires the temperature exceeding 70 degrees and can automatically disconnect the power supply, so that the output end stops supplying power, and the normal use can effectively protect the equipment from being damaged. The temperature acquisition chip 7 can be a chip with the model number of ADS7841 and can withstand the service life of 10 ten thousand repeated operations.
In addition, a sixth resistor is connected to the pin A4 or the pin A9, a seventh resistor is connected to the pin B4 or the pin B9, and the resistance values of the sixth resistor and the seventh resistor are 56K omega, so that the data line has a quick charging function.
Referring to fig. 2, fig. 2 is a schematic circuit diagram of an IC chip according to the present invention; the IC chip 5 includes a first diode 51, a triode 52, a second resistor 53, a capacitor 54, a third resistor 55, a fourth resistor 56, a voltage comparator 57, a second diode 58 and a fifth resistor 59, wherein the anode of the first diode 51 is connected to the first pin 1, and the cathode of the first diode 51 is connected to the emitter of the triode 52 and one end of the third resistor 55 respectively; a collector of the triode 52 is connected with one end of a second resistor 53, the other end of the second resistor 53 is respectively connected with one end of a capacitor 54 and a VCC pin of the power management chip 8, the other end of the capacitor 54 is connected with a black connection wire, the other end of a third resistor 55 is respectively connected with one end of a fourth resistor 56 and the VCC pin of the temperature acquisition chip 7, and the other end of the fourth resistor 56 is connected with a power input end of a voltage comparator 57; the OUT pin of the temperature acquisition chip 7 is connected with one end of a first resistor 6, the other end of the first resistor 6 is connected with the homodromous end of a voltage comparator 57, the reverse end of the voltage comparator 57 is connected with the REF pin of the power management chip 8, the output end of the voltage comparator 57 is connected with the anode of a second diode 58, the cathode of the second diode 58 is connected with one end of a fifth resistor 59, the other end of the fifth resistor 59 is connected with the base of the triode 52, and the ground end of the voltage comparator 57 is connected with a black connection wire.
The data line is powered on, the first diode 51 is powered on, the triode 52 is rectified by the second resistor 53, voltage is provided at two ends of the capacitor 54 to supply power for the power management chip 8, meanwhile, the voltage is rectified by the third resistor 55 to also supply power for the voltage comparator 57 and the temperature acquisition chip 7, the temperature acquisition chip 7 acquires the working temperature of the USB3.0 connector P1 in real time and outputs induction voltage to the same-direction end of the voltage comparator 57, the same-direction end of the voltage comparator 57 is connected with the REF pin of the power management chip 8, so that the voltage comparator 57 compares the working temperature of the USB3.0 connector P1 with the preset temperature threshold value, the preset temperature threshold value is 70 degrees, when the working temperature of the USB3.0 connector P1 exceeds 70 degrees, the second diode 58 is powered on, the base of the triode 52 is powered on, the triode 52 is automatically disconnected, the power management chip 8 is powered off, and the SB3.0 connector P1 stops supplying power to the power management chip 8, when the operating temperature of the USB3.0 connector P1 is lower than 70 degrees, the second diode 58 is not turned on, the transistor 52 is in a conducting state, and the SB3.0 connector P1 supplies power to the power management chip 8, thereby preventing the data line and the connected devices from being damaged due to the high operating temperature.
It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.
Claims (4)
1. A data line having a temperature over-temperature protection function, the data line comprising a USB3.0 connector (P1) and a TYPE-C connector (P2) connected at both ends of a data transmission line; it is characterized in that the preparation method is characterized in that,
the USB3.0 connector (P1) comprises a first pin (1), a second pin (2), a third pin (3) and a fourth pin (4) which are arranged side by side, the first pin (1), the second pin (2), the third pin (3) and the fourth pin (4) are respectively connected with a red wiring, a white wiring, a green wiring and a black wiring through a power management chip (8) on the PCBA, and an IC chip (5), a first resistor (6) and a temperature acquisition chip (7) are further connected on the fourth pin (4) in series;
the temperature acquisition chip (7) is used for acquiring the working temperature of the USB3.0 connector (P1) and outputting induction voltage to the IC chip (5) according to the working temperature; the IC chip (5) is used for comparing the working temperature of the USB3.0 connector (P1) with a preset temperature threshold value, and when the working temperature exceeds the preset temperature threshold value, the IC chip (5) automatically cuts off the power supply;
the IC chip (5) comprises a first diode (51), a triode (52), a second resistor (53), a capacitor (54), a third resistor (55), a fourth resistor (56), a voltage comparator (57), a second diode (58) and a fifth resistor (59), wherein the anode of the first diode (51) is connected with the first pin (1), and the cathode of the first diode (51) is respectively connected with the emitter of the triode (52) and one end of the third resistor (55); the collector of the triode (52) is connected with one end of a second resistor (53), the other end of the second resistor (53) is respectively connected with one end of a capacitor (54) and a VCC pin of a power management chip (8), the other end of the capacitor (54) is connected with a black connection wire, the other end of a third resistor (55) is respectively connected with one end of a fourth resistor (56) and the VCC pin of a temperature acquisition chip (7), and the other end of the fourth resistor (56) is connected with a power input end of a voltage comparator (57); an OUT pin of the temperature acquisition chip (7) is connected with one end of a first resistor (6), the other end of the first resistor (6) is connected with the homodromous end of a voltage comparator (57), the reverse end of the voltage comparator (57) is connected with a REF pin of a power management chip (8), the output end of the voltage comparator (57) is connected with the anode of a second diode (58), the cathode of the second diode (58) is connected with one end of a fifth resistor (59), the other end of the fifth resistor (59) is connected with the base electrode of a triode (52), and the ground terminal of the voltage comparator (57) is connected with a black connection wire;
the first pin (1) is connected with an A4 pin, an A9 pin, a B4 pin and a B9 pin of a TYPE-C connector (P2) through red wiring, the second pin (2) is connected with an A7 pin and a B7 pin of a TYPE-C connector (P2) through white wiring, the third pin (3) is connected with an A6 pin and a B6 pin of the TYPE-C connector (P2) through green wiring, and the fourth pin (4) is connected with the A1 pin, the A12 pin, the B1 pin and the B12 pin of the TYPE-C connector (P2) through black wiring; a pin A4 or a pin A9 is connected with a sixth resistor, a pin B4 or a pin B9 is connected with a seventh resistor, and the resistance values of the sixth resistor and the seventh resistor are 56K omega.
2. The data line with the over-temperature protection function according to claim 1, wherein the first pin (1), the second pin (2), the third pin (3) and the fourth pin (4) are embedded on the upper surface of the isolation seat (9), and the temperature acquisition chip (7) is embedded on the front side of the isolation seat (9).
3. The data line with the over-temperature protection function according to claim 1, wherein the upper limit of the operating temperature of the USB3.0 connector (P1) is 70 degrees.
4. The data line with the function of protecting the over-temperature of the temperature according to claim 1, wherein the model of the temperature acquisition chip (7) is ADS 7841.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677867.3A CN110416849B (en) | 2019-07-25 | 2019-07-25 | Data line with temperature overtemperature protection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910677867.3A CN110416849B (en) | 2019-07-25 | 2019-07-25 | Data line with temperature overtemperature protection function |
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| Publication Number | Publication Date |
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| CN110416849A CN110416849A (en) | 2019-11-05 |
| CN110416849B true CN110416849B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910677867.3A Active CN110416849B (en) | 2019-07-25 | 2019-07-25 | Data line with temperature overtemperature protection function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112685263B (en) * | 2021-02-01 | 2024-06-21 | 盐城国投中科新能源科技有限公司 | Rail transit BMS temperature polling collection equipment |
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| JP6711582B2 (en) * | 2015-10-14 | 2020-06-17 | ホシデン株式会社 | Plug connector and adapter |
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| CN105244712A (en) * | 2014-07-10 | 2016-01-13 | 廖生兴 | Connecting wire device with overheating protection function and adaptor structure |
| CN105390888A (en) * | 2014-08-22 | 2016-03-09 | 三美电机株式会社 | Cable with plug, control circuit and substrate |
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| CN105375207A (en) * | 2015-11-05 | 2016-03-02 | 罗勇进 | USB cable |
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| CN110416849A (en) | 2019-11-05 |
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