CN211669348U - Connection detection system - Google Patents
Connection detection system Download PDFInfo
- Publication number
- CN211669348U CN211669348U CN201922343951.XU CN201922343951U CN211669348U CN 211669348 U CN211669348 U CN 211669348U CN 201922343951 U CN201922343951 U CN 201922343951U CN 211669348 U CN211669348 U CN 211669348U
- Authority
- CN
- China
- Prior art keywords
- resistor
- detection
- contact
- circuit
- control chip
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a connect detecting system, include: the first electronic equipment comprises a first control chip, a first detection contact and a first detection circuit connected between the first control chip and the first detection contact; the second electronic equipment comprises a second control chip, a second detection contact and a second detection circuit connected between the second control chip and the second detection contact; the first detection circuit detects the level state of the first detection contact so that the first control chip can judge whether the first electronic equipment is connected with the second electronic equipment, and the second detection circuit detects the level state of the second detection contact so that the second control chip can judge whether the second electronic equipment is connected with the first electronic equipment. The utility model discloses a first electronic equipment and second electronic equipment can detect simultaneously and be connected with the other side, and check-out time is short, and the low power dissipation.
Description
Technical Field
The utility model relates to the field of electronic technology, in particular to connect detecting system.
Background
In the prior art, the following scenarios exist: in the connection process of the two electronic devices, any one electronic device needs to detect whether the connection between the electronic device and the other electronic device is successful in a one-way mode, and then the next operation is carried out. For example, in the charging process of the wireless earphone, the wireless earphone needs to detect whether the wireless earphone is successfully connected with the charging box in a one-way manner, the charging box also needs to detect whether the wireless earphone is successfully connected with the wireless earphone in a one-way manner, and the wireless earphone is charged by the charging box only after the wireless earphone and the charging box both confirm that the wireless earphone is successfully connected with the other side. The detection process is unidirectional, takes a long detection time, and needs software assistance, so that the power consumption of the electronic equipment is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connect detecting system aims at solving the electronic equipment connection process among the prior art, needs to spend longer check-out time, and the problem of electronic equipment consumption increase.
In order to achieve the above object, the utility model provides a connect detecting system, connect detecting system includes: the first electronic equipment comprises a first control chip, a first detection contact and a first detection circuit connected between the first control chip and the first detection contact; the second electronic equipment comprises a second control chip, a second detection contact and a second detection circuit connected between the second control chip and the second detection contact; the first detection contact and the second detection contact are in contact conduction or disconnection to generate level change, the first detection circuit is used for detecting the level state of the first detection contact so that the first control chip can judge whether the first electronic equipment is connected with the second electronic equipment, and the second detection circuit is used for detecting the level state of the second detection contact so that the second control chip can judge whether the second electronic equipment is connected with the first electronic equipment.
Further, the first detection circuit is a first voltage comparison circuit or a first analog-to-digital converter, and the second detection circuit is a second voltage comparison circuit or a second analog-to-digital converter.
Further, the first voltage comparison circuit includes: the first voltage division circuit is provided with a first connecting point; the first voltage division sub-circuit is provided with a second connection point, and the second connection point is connected to the first detection contact; and the output end of the first comparator is connected with the first control chip, and one of the inverting input end and the inverting input end of the first comparator is connected to the first connecting point, and the other one of the inverting input end and the inverting input end of the first comparator is connected to the second connecting point.
Further, the second voltage comparison circuit includes: the second voltage division circuit is provided with a third connection point; the second voltage division sub-circuit is provided with a fourth connection point, the fourth connection point is connected to the second detection contact, and after the first detection contact is in contact conduction with the second detection contact, the first voltage division sub-circuit and the second voltage division sub-circuit form a complete voltage division circuit; and the output end of the second comparator is connected with the second control chip, and one of the inverted input end and the same-direction input end of the second comparator is connected to the third connection point, and the other one of the inverted input end and the same-direction input end of the second comparator is connected to the fourth connection point.
Further, the first voltage division circuit comprises a first resistor and a second resistor which are connected in series; one end of the first resistor is connected to a power supply, one end of the first resistor is connected to one end of the second resistor, and the other end of the second resistor is grounded; the first connecting point is arranged on a connecting line of the first resistor and the second resistor.
Further, the second voltage division circuit comprises a third resistor and a fourth resistor which are connected in series; one end of the third resistor is connected to a power supply, the other end of the third resistor is connected to one end of the fourth resistor, and the other end of the fourth resistor is grounded; the third connection point is arranged on a connection line of the third resistor and the fourth resistor.
Furthermore, the first voltage-dividing sub-circuit comprises a fifth resistor, one end of the fifth resistor is connected to the first detection contact, the other end of the fifth resistor is grounded, and the second connection point is arranged on a connection line of the fifth resistor and the first detection contact; the second voltage division sub-circuit comprises a sixth resistor, one end of the sixth resistor is connected to the second detection contact, the other end of the sixth resistor is connected to a power supply, and a fourth connection point is arranged on a connection line of the sixth resistor and the second detection contact.
Further, the first control chip is also connected with a first charging anode and a first charging cathode; the second control chip is also connected with a second charging anode and a second charging cathode; when the first detection contact is in contact conduction with the second detection contact, the first charging positive electrode is in contact conduction with the second charging positive electrode, and the first charging negative electrode is in contact conduction with the second charging negative electrode, so that the second electronic equipment is charged through the first electronic equipment.
Further, the first electronic device is a charging box, and the second electronic device is a wireless headset.
Furthermore, the first detection contact is arranged in the charging box in a key structure, the second detection contact is arranged on the wireless earphone in a key structure, and after the wireless earphone is placed in the charging box, the two keys are in contact conduction.
In the present invention, by providing the first detection circuit between the first control chip and the first detection contact, the level state of the first detection contact is detected by the first detection circuit, and the detection result is sent to the first control chip, so that the first control chip can determine whether the first electronic device is connected to the second electronic device; similarly, a second detection circuit is arranged between the second control chip and the second detection contact, the level state of the second detection contact is detected through the second detection circuit, and the detection result is sent to the second control chip, so that the second control chip can judge whether the second electronic equipment is connected with the first electronic equipment. Because the level state that first detection contact and second detected the contact is always the same, consequently, first detection circuitry with second detection circuitry can carry out short-term test simultaneously, first control chip also can carry out quick judgement with the second control chip simultaneously, first electronic equipment can realize simultaneously with second electronic equipment with the other side be connected with the disconnection detection, thereby can shorten first electronic equipment is long with second electronic equipment's connection detection time, just the utility model discloses an implementation is independently accomplished by hardware circuit, and the circuit is simple, and easily debugging can reduce first electronic equipment and second electronic equipment's consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a connection detection system according to the present invention;
fig. 2 is a schematic circuit diagram of the connection detection system of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a connection detection system 100, wherein the connection detection system 100 includes: a first electronic device 10, said first electronic device 10 comprising a first control chip 11, a first detection contact T3 and a first detection circuit 12 connected between said first control chip 11 and a first detection contact T3; a second electronic device 20, said second electronic device 20 comprising a second control chip 21, a second detection contact T4 and a second detection circuit 22 connected between said second control chip 21 and a second detection contact T4; the first detection contact T3 generates a level change when it is turned on or off in contact with the second detection contact T4, the first detection circuit 12 is configured to detect a level state of the first detection contact T3, so that the first control chip 11 can determine whether the first electronic device 10 is connected to the second electronic device 20, and the second detection circuit 22 is configured to detect a level state of the second detection contact T4, so that the second control chip 21 can determine whether the second electronic device 20 is connected to the first electronic device 10.
In this embodiment, the first electronic device 10 may be a charging box of a wireless headset, or may be another type of electronic device, the second electronic device 20 may be a wireless headset, or may be another type of electronic device, and the following description will be given by taking the first electronic device 10 as a charging box of a wireless headset, and taking the second electronic device 20 as a wireless headset.
In this embodiment, the connection process between the first electronic device 10 and the second electronic device 20 may be a process in which the wireless headset is placed in the charging box and connected, and when the first detection contact T3 is disconnected from or connected to the second detection contact T4, the level states of the first detection contact T3 and the second detection contact T4 change, for example, when the first detection contact T3 is disconnected from the second detection contact T4, the first detection contact T3 and the second detection contact T4 are both at a low level, and when the first detection contact T3 is connected to the second detection contact T4, the first detection contact T3 and the second detection contact T4 are at a high level.
In this embodiment, a first detection circuit 12 is disposed between the first control chip 11 and a first detection contact T3, the first detection circuit 12 detects a level state of the first detection contact T3, and sends a detection result to the first control chip 11, so that the first control chip 11 can determine whether the first electronic device 10 is connected to the second electronic device 20; similarly, by arranging the second detection circuit 22 between the second control chip 21 and the second detection contact T4, the level state of the second detection contact T4 is detected by the second detection circuit 22, and the detection result is sent to the second control chip 21, so that the second control chip 21 can determine whether the second electronic device 20 is connected to the first electronic device 10. Because the level states of the first detection contact T3 and the second detection contact T4 are always the same, the first detection circuit 12 and the second detection circuit 22 can perform rapid detection at the same time, and the first control chip 11 and the second control chip 21 can also perform rapid determination at the same time, that is, the first electronic device 10 and the second electronic device 20 can simultaneously implement connection and disconnection detection with each other, so that the connection detection duration of the first electronic device 10 and the second electronic device 20 can be shortened.
Further, the first detection circuit 12 is a first voltage comparison circuit 120 or a first analog-to-digital converter (not shown), and the second detection circuit 22 is a second voltage comparison circuit 220 or a second analog-to-digital converter (not shown).
In this embodiment, the first detection circuit 12 and the second detection circuit 22 may both be a voltage comparison circuit or an analog-to-digital converter; or one of the first detection circuit 12 and the second detection circuit 22 is a voltage comparison circuit, and the other is an analog-to-digital converter. The first digital-to-analog converter may directly detect the level state of the first detection contact T3 and send the detection result to the first control chip 11 without requiring more peripheral circuits, and similarly, the second digital-to-analog converter may directly detect the level state of the second detection contact T4 and send the detection result to the second control chip 21 without requiring more peripheral circuits. In other embodiments, the first detection circuit 12 and the second detection circuit 22 may be in other circuit forms, and any design that achieves the above result through the conversion of the circuit forms should be included in the scope of the present invention.
Further, the first voltage comparison circuit 120 includes: a first voltage dividing circuit 121, wherein a first connection point a1 is arranged on the first voltage dividing circuit 121; a first voltage-dividing sub-circuit 122, wherein a second connection point a2 is arranged on the first voltage-dividing sub-circuit 122, and the second connection point a2 is connected to the first detection contact T3; a first comparator U1A, wherein the output terminal of the first comparator U1A is connected to the first control chip 11, and one of the inverting input terminal-and the inverting input terminal + of the first comparator U1A is connected to the first connection point A1, and the other is connected to the second connection point A2.
In this embodiment, by providing the first connection point a1 on the first voltage-dividing circuit 121, providing the second connection point a2 on the first voltage-dividing sub-circuit 122, and connecting the second connection point a2 to the first detection contact T3, and connecting the first connection point a1 and the second connection point a2 to the unidirectional input terminal +, the inverted input terminal-, and the unidirectional input terminal-, of the first comparator U1A, respectively, or connecting the first connection point a1 and the second connection point a2 to the inverted input terminal-, the unidirectional input terminal-, of the first comparator U1A, respectively, and by appropriately setting the voltages at the first connection point a1 and the second connection point a2 (i.e. the voltage at the first detection contact T3), the output terminal of the first comparator U1A can be controlled to output a high level signal or a low level signal to the first control chip 11, the first control chip 11 determines whether the first electronic device 10 is connected to the second electronic device 20 according to the received level signal.
Further, the second voltage comparison circuit 220 includes: a second voltage dividing circuit 221, wherein a third connection point a3 is provided on the second voltage dividing circuit 221; the second voltage dividing sub-circuit 222, a fourth connection point a4 is arranged on the second voltage dividing sub-circuit 222, the fourth connection point a4 is connected to the second detection contact T4, and after the first detection contact T3 and the second detection contact T4 are contacted and conducted, the first voltage dividing sub-circuit 122 and the second voltage dividing sub-circuit 222 form a complete voltage dividing circuit; a second comparator U2A, wherein the output terminal of the second comparator U2A is connected to the second control chip 21, and one of the inverting input terminal-and the inverting input terminal + of the second comparator U2A is connected to the third connection point A3, and the other is connected to the fourth connection point A4.
In this embodiment, by providing the third connection point A3 on the second voltage-dividing sub-circuit 221, providing the fourth connection point A4 on the second voltage-dividing sub-circuit 222, and connecting the fourth connection point A4 to the second detection contact T4, and connecting the third connection point A3 and the fourth connection point A4 to the inverting input terminal +, the inverting input terminal-, respectively, of the second comparator U2A, or connecting the third connection point A3 and the fourth connection point A4 to the inverting input terminal-, the inverting input terminal + respectively, of the second comparator U2A, and by appropriately setting the voltages at the third connection point A3 and the fourth connection point A4 (i.e., the voltage at the second detection contact T4), the output terminal of the second comparator U2A can be controlled to output a high level signal or a low level signal to the second control chip 21, the second control chip 21 determines whether the second electronic device 20 is connected to the first electronic device 10 according to the received level signal.
Further, the first voltage dividing circuit 121 includes a first resistor R1 and a second resistor R2 connected in series; one end of the first resistor R1 is connected to a power supply, one end of the first resistor R1 is connected to one end of the second resistor R2, and the other end of the second resistor R2 is grounded; the first connection point a1 is disposed on a connection line between the first resistor R1 and the second resistor R2.
In this embodiment, a first resistor R1 and a second resistor R2 are connected in series between a power supply and ground, the first connection point a1 is arranged on a connection line between the first resistor R1 and the second resistor R2, and the voltage of the first connection point a1 can be set properly by adjusting and properly setting the resistances of the first resistor R1 and the second resistor R2 and the output voltage of the power supply.
Further, the second voltage divider circuit 221 includes a third resistor R3 and a fourth resistor R4 connected in series; one end of the third resistor R3 is connected to a power supply, the other end of the third resistor R3 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is grounded; the third connection point a3 is disposed on a connection line between the third resistor R3 and the fourth resistor R4.
In this embodiment, a third resistor R3 and a fourth resistor R4 are connected in series between a power supply and ground, the third connection point A3 is arranged on a connection line between the third resistor R3 and the fourth resistor R4, and the voltage of the third connection point A3 can be reasonably set by adjusting and reasonably setting the resistance values of the third resistor R3 and the fourth resistor R4 and the output voltage of the power supply.
Further, the first voltage-dividing sub-circuit 122 includes a fifth resistor R5, one end of the fifth resistor R5 is connected to the first detection contact T3, the other end of the fifth resistor R5 is grounded, and the second connection point a2 is disposed on a connection line between the fifth resistor R5 and the first detection contact T3; the second voltage-dividing sub-circuit 222 includes a sixth resistor R6, one end of the sixth resistor R6 is connected to the second detection contact T4, the other end of the sixth resistor R6 is connected to the power supply, and a fourth connection point a4 is disposed on a connection line between the sixth resistor R6 and the second detection contact T4.
In this embodiment, when the first detection contact T3 is in contact conduction with the second detection contact T4, the first voltage-dividing sub-circuit 122 and the second voltage-dividing sub-circuit 222 form a complete voltage-dividing circuit, in the voltage division circuit, a sixth resistor R6, a fourth connection point A4, a second detection contact T4, a first detection contact T3, a second connection point A2 and a fifth resistor R5 are sequentially arranged between the power supply and the ground, it can be seen that when the first detection contact T3 and the second detection contact T4 are in contact conduction, the voltages at the fourth connection point a4, the second detection contact T4, the first detection contact T3 and the second connection point a2 are all the same, by adjusting and reasonably setting the resistance values of the fifth resistor R5 and the sixth resistor R6 and the output voltage of the power supply, the voltages of the fourth connection point a4, the second detection contact T4, the first detection contact T3 and the second connection point a2 can be set reasonably.
Further, the first control chip 11 is also connected with a first charging positive electrode T1 and a first charging negative electrode T5; the second control chip 21 is also connected with a second charging positive electrode T2 and a second charging negative electrode T6; while the first detecting contact T3 is in contact with the second detecting contact T4, the first charging positive electrode T1 is in contact with the second charging positive electrode T2, and the first charging negative electrode T5 is in contact with the second charging negative electrode T6, so as to charge the second electronic device 20 through the first electronic device 10.
In this embodiment, when the first detection contact T3 and the second detection contact T4 are in contact conduction, the first control chip 11 and the second control chip 21 detect that the first control chip 11 and the second control chip 21 are successfully connected to each other, and because the first charging positive electrode T1 and the second charging positive electrode T2 are in contact conduction and the first charging negative electrode T5 and the second charging negative electrode T6 are in contact conduction at this time, the first control chip 11 can charge the second electronic device 20 through the first charging positive electrode T1 and the first charging negative electrode T5.
Further, when the first electronic device 10 is a charging box and the second electronic device 20 is a wireless headset, the first detecting contact T3 is disposed in the charging box in a key structure, the second detecting contact T4 is disposed on the wireless headset in a key structure, and after the wireless headset is placed in the charging box, the two keys are in contact conduction.
In this embodiment, when the first electronic device 10 is a charging box, and the second electronic device 20 is a wireless headset, the first detection contact T3 is arranged in the charging box in a key structure mode, the second detection contact T4 is arranged on the wireless headset in a key structure mode, and the wireless headset is placed in the charging box, and then the two key contacts are conducted, so that the connection detection between the charging box and the wireless headset is completed, the structure is simple, and the detection process is fast and convenient.
Based on the above description and the circuit diagram shown in fig. 2, the following details the detection process of the connection detection system 100 of the present invention:
when the first electronic device 10 and the second electronic device 20 are in an unconnected state, that is, when the first detection contact T3 is disconnected from the second detection contact T4, the unidirectional input terminal + of the first comparator U1A is grounded through the fifth resistor R5, the voltage of the inverting input terminal-of the first comparator U1A is equal to the voltage across R2, the voltage of the unidirectional input terminal + of the first comparator U1A is lower than the voltage of the inverting input terminal-, and the output terminal of the first comparator U1A outputs a low level, at this time, the first control chip 11 determines that the first electronic device 10 and the second electronic device 20 are not connected; the voltage of the equidirectional input terminal + of the second comparator U2A is equal to the voltage across the fourth resistor R4, the inverting input terminal-of the second comparator U2A is connected to the power supply through the sixth resistor R6, and by setting the voltage of the power supply, the voltage of the inverting input terminal-of the second comparator U2A can be made higher than the voltage of the equidirectional input terminal +, so that the output terminal of the second comparator U2A outputs a low level, and at this time, the second control chip 21 determines that the second electronic device 20 is not connected to the first electronic device 10;
when the first electronic device 10 and the second electronic device 20 are in a connected state, for example, a wireless headset is placed in a charging box, and the resistances of the power supply VCC1, the output voltage of the power supply VCC2, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 are reasonably set, so that after the first detection contact T3 and the second detection contact T4 are in contact conduction, the voltage of the homodromous input terminal + of the first comparator U1A is higher than the voltage of the reverse input terminal-, the voltage of the homodromous input terminal + of the second comparator U2A is higher than the voltage of the reverse input terminal-, and the first control chip 11 determines that the first electronic device 10 is connected with the second electronic device 20 after receiving the high-level signal output by the first comparator U1A; after receiving the high level signal of the second comparator U2A, the second control chip 21 determines that the second electronic device 20 is connected to the second electronic device 10.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A connection detection system, characterized in that the connection detection system comprises:
the first electronic equipment comprises a first control chip, a first detection contact and a first detection circuit connected between the first control chip and the first detection contact;
the second electronic equipment comprises a second control chip, a second detection contact and a second detection circuit connected between the second control chip and the second detection contact;
the first detection contact and the second detection contact are in contact conduction or disconnection to generate level change, the first detection circuit is used for detecting the level state of the first detection contact so that the first control chip can judge whether the first electronic equipment is connected with the second electronic equipment, and the second detection circuit is used for detecting the level state of the second detection contact so that the second control chip can judge whether the second electronic equipment is connected with the first electronic equipment.
2. The connection detection system of claim 1, wherein the first detection circuit is a first voltage comparison circuit or a first analog-to-digital converter and the second detection circuit is a second voltage comparison circuit or a second analog-to-digital converter.
3. The connection detection system of claim 2, wherein the first voltage comparison circuit comprises:
the first voltage division circuit is provided with a first connecting point;
the first voltage division sub-circuit is provided with a second connection point, and the second connection point is connected to the first detection contact;
and the output end of the first comparator is connected with the first control chip, and one of the inverting input end and the inverting input end of the first comparator is connected to the first connecting point, and the other one of the inverting input end and the inverting input end of the first comparator is connected to the second connecting point.
4. The connection detection system of claim 3, wherein the second voltage comparison circuit comprises:
the second voltage division circuit is provided with a third connection point;
the second voltage division sub-circuit is provided with a fourth connection point, the fourth connection point is connected to the second detection contact, and after the first detection contact is in contact conduction with the second detection contact, the first voltage division sub-circuit and the second voltage division sub-circuit form a complete voltage division circuit;
and the output end of the second comparator is connected with the second control chip, and one of the inverted input end and the same-direction input end of the second comparator is connected to the third connection point, and the other one of the inverted input end and the same-direction input end of the second comparator is connected to the fourth connection point.
5. The connection detection system of claim 4,
the first voltage division circuit comprises a first resistor and a second resistor which are connected in series;
one end of the first resistor is connected to a power supply, one end of the first resistor is connected to one end of the second resistor, and the other end of the second resistor is grounded;
the first connecting point is arranged on a connecting line of the first resistor and the second resistor.
6. The connection detection system of claim 4,
the second voltage division circuit comprises a third resistor and a fourth resistor which are connected in series;
one end of the third resistor is connected to a power supply, the other end of the third resistor is connected to one end of the fourth resistor, and the other end of the fourth resistor is grounded;
the third connection point is arranged on a connection line of the third resistor and the fourth resistor.
7. The connection detection system of claim 4,
the first voltage division sub-circuit comprises a fifth resistor, one end of the fifth resistor is connected to the first detection contact, the other end of the fifth resistor is grounded, and the second connection point is arranged on a connection line of the fifth resistor and the first detection contact;
the second voltage division sub-circuit comprises a sixth resistor, one end of the sixth resistor is connected to the second detection contact, the other end of the sixth resistor is connected to a power supply, and a fourth connection point is arranged on a connection line of the sixth resistor and the second detection contact.
8. The connection detection system of claim 1,
the first control chip is also connected with a first charging anode and a first charging cathode;
the second control chip is also connected with a second charging anode and a second charging cathode;
when the first detection contact is in contact conduction with the second detection contact, the first charging positive electrode is in contact conduction with the second charging positive electrode, and the first charging negative electrode is in contact conduction with the second charging negative electrode, so that the second electronic equipment is charged through the first electronic equipment.
9. The connection detection system of any one of claims 1-8, wherein the first electronic device is a charging box and the second electronic device is a wireless headset.
10. The connection detection system of claim 9, wherein the first detection contact is disposed in the charging box in a key structure, the second detection contact is disposed on the wireless headset in a key structure, and when the wireless headset is placed in the charging box, two of the keys are in contact conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343951.XU CN211669348U (en) | 2019-12-23 | 2019-12-23 | Connection detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343951.XU CN211669348U (en) | 2019-12-23 | 2019-12-23 | Connection detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211669348U true CN211669348U (en) | 2020-10-13 |
Family
ID=72734409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922343951.XU Active CN211669348U (en) | 2019-12-23 | 2019-12-23 | Connection detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211669348U (en) |
-
2019
- 2019-12-23 CN CN201922343951.XU patent/CN211669348U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8217639B2 (en) | System for supplying and receiving power, power supply device and method thereof | |
| JP2020528725A (en) | Mobile devices, peripheral devices, and how to charge them | |
| US11658566B2 (en) | Power supply device, power supply system and method for controlling the same | |
| CN105071484A (en) | Charging method and apparatus of terminal having data exchange function | |
| CN211669348U (en) | Connection detection system | |
| US20210250063A1 (en) | Mobile device for performing power line communication and operating method thereof | |
| CN210629189U (en) | Backup power supply device based on super capacitor | |
| WO2011069369A1 (en) | Voltage indicating circuit of cellular phone battery | |
| CN110875607B (en) | Charging system | |
| CN102332617A (en) | Portable terminal and method for identifying battery of portable terminal | |
| CN111866663A (en) | Control circuit for earplug type earphone device and earplug type earphone circuit | |
| CN111830394A (en) | Charging circuit fault detection method, electronic device and computer readable storage medium | |
| EP4123867A1 (en) | Smart battery device, and electronic device thereof | |
| CN108933601B (en) | Coding chip and battery monitoring unit | |
| CN212486762U (en) | Earphone box-entering detection circuit and TWS earphone | |
| CN109599851B (en) | Protection circuit and display panel | |
| CN112214433B (en) | Terminal device, control method thereof, auxiliary device, and storage medium | |
| CN110824377A (en) | Detection circuit of switching power supply | |
| US9496737B2 (en) | Charge devices and charge systems | |
| US20200241620A1 (en) | Host hardware reset based on adapter removal pattern | |
| CN111337841A (en) | Mobile terminal and battery state detection system thereof | |
| CN115373499B (en) | Reset circuit and electronic device | |
| CN211086546U (en) | Grounding detection device | |
| CN216596517U (en) | Remote control circuit and remote controller | |
| CN214473840U (en) | Electronic device, leakage current detection device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |