CN218829076U - Charging adapter - Google Patents
Charging adapter Download PDFInfo
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- CN218829076U CN218829076U CN202222960836.9U CN202222960836U CN218829076U CN 218829076 U CN218829076 U CN 218829076U CN 202222960836 U CN202222960836 U CN 202222960836U CN 218829076 U CN218829076 U CN 218829076U
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Abstract
The utility model discloses an adapter charges, relate to the adapter protection field that charges, when the positive end short circuit of output of charging chip, the positive end of output of charging chip and the output negative end short circuit of charging chip this moment, because the output negative end ground connection of charging chip, so detection module's the positive end's of output voltage that can detect charging chip this moment is less than predetermined voltage for 0V, and export first control signal to charging chip's control end, make charging chip's input and charging chip's the positive end of output close, thereby make the charging line break off immediately. After the short-circuit fault of the positive output end of the charging chip is cleared, the detection end of the detection module can detect that the voltage of the positive output end of the charging chip is larger than the preset voltage, and outputs a second control signal to the control end of the charging chip, so that the input end of the charging chip and the positive output end of the charging chip are opened, a charging circuit is immediately connected, the output recovery time is shortened, and the safety of a user is protected.
Description
Technical Field
The utility model relates to a charging adapter protection field especially relates to a charging adapter.
Background
With the development of science and technology, various electronic devices advance into our lives, such as a bracelet, which has functions of recording data, reminding incoming calls and the like in the process of exercise, and therefore, it becomes especially important to perform security protection on the bracelet, especially protection on a charging adapter of the bracelet. The magnetism suction head of the charging adapter of the bracelet has positive and negative poles, and once the magnetism suction head contacts with conductive parts such as metal parts, the positive and negative poles of the magnetism suction head can be in short circuit to cause short circuit.
Among the prior art, the adapter that charges is provided with the self-resuming fuse on the charging line including the chip that charges among the chip that charges, and when the positive and negative two poles of the earth short circuit of magnetic suction head, the self-resuming fuse is the high resistance state. After the short-circuit fault is cleared, the charging adapter can normally output the signal only after the self-recovery fuse is cooled down and is in a low-resistance state, so that the output recovery time is slow.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a charging adapter, during the positive end short circuit of output of charging chip, the positive end of output of charging chip and the output negative end short circuit of charging chip this moment, because the output negative end ground connection of charging chip, so the detection end of detection module can detect the positive end of output of charging chip this moment and be less than preset voltage for 0V, and export first control signal to the control end of charging chip, make the input of charging chip and the positive end of output of charging chip close, thereby make the charging circuit break off immediately. After the short-circuit fault of the positive output end of the charging chip is cleared, the detection end of the detection module can detect that the voltage of the positive output end of the charging chip is larger than the preset voltage, and outputs a second control signal to the control end of the charging chip, so that the input end of the charging chip and the positive output end of the charging chip are opened, a charging circuit is immediately connected, the output recovery time is shortened, and the safety of a user is protected.
In order to solve the technical problem, the utility model provides a charging adapter, include:
the charging circuit comprises a charging chip, a first power supply and a second power supply, wherein the input end of the charging chip is connected with the positive output end of the first power supply, the positive output end of the charging chip is connected with a load, and the charging chip is used for disconnecting a charging circuit between the input end of the charging chip and the positive output end of the charging chip when receiving a first control signal and connecting the charging circuit between the input end of the charging chip and the positive output end of the charging chip when receiving a second control signal;
the detection end of the detection module is connected with the positive output end of the charging chip, and the control end of the detection module is connected with the control end of the charging chip and used for outputting the first control signal to the control end of the charging chip after detecting that the positive output end and the negative output end of the charging chip are short-circuited; and when detecting that the output positive terminal of the charging chip and the output negative terminal of the charging chip are not short-circuited, outputting the second control signal to the control terminal of the charging chip.
Preferably, the charging chip further comprises a reset terminal; the charging adapter further includes:
the first end of the first resistor is connected with the ground, and the second end of the first resistor is connected with the reset end of the charging chip.
Preferably, the charging adapter further comprises:
and the first filtering module is connected with the positive output end of the first power supply.
Preferably, the first filtering module is a first capacitor.
Preferably, the charging adapter further includes:
and the second filtering module is connected with the positive output end of the charging chip.
Preferably, the second filtering module is a second capacitor.
Preferably, the charging adapter further comprises:
and the alarm module is connected with the control end of the charging chip and used for giving an alarm when the control end of the charging chip receives the first control signal transmitted by the detection module.
Preferably, the alarm module is a display alarm device and/or an audible alarm device.
Preferably, the detection module comprises:
the first end of the second resistor is respectively connected with the first end of the third resistor and the control end of the charging chip, and the second end of the second resistor is connected with a second power supply;
and the second end of the third resistor is connected with the positive output end of the charging chip.
Preferably, the second power supply is the same power supply as the first power supply.
The utility model provides an adapter charges, during the positive end short circuit of output of charging chip, the positive end of output of charging chip and the output negative end short circuit of charging chip this moment, because the output negative end ground connection of charging chip, so the detection end of detection module can detect the positive end of output of charging chip this moment and be less than predetermined voltage for 0V, and export first control signal to the control end of charging chip, make the input of charging chip and the positive end of output of charging chip close, thereby make the charging line break off immediately. After the short-circuit fault of the positive output end of the charging chip is cleared, the detection end of the detection module can detect that the voltage of the positive output end of the charging chip is larger than the preset voltage, and outputs a second control signal to the control end of the charging chip, so that the input end of the charging chip and the positive output end of the charging chip are opened, a charging circuit is immediately connected, the output recovery time is shortened, and the safety of a user is protected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 is a schematic structural diagram of a charging adapter provided by the present invention;
fig. 2 is a schematic structural diagram of a charging chip provided by the present invention;
fig. 3 is a schematic structural diagram of another charging adapter provided by the present invention;
fig. 4 is a schematic structural diagram of another charging adapter provided by the present invention.
Detailed Description
The core of the utility model is to provide a charging adapter, during the positive end short circuit of the output of charging chip, the positive end of the output of charging chip and the output negative end short circuit of charging chip this moment, because the output negative end ground connection of charging chip, so the detection end of detection module can detect the positive end of the output of charging chip this moment and be less than preset voltage for 0V, and export first control signal to the control end of charging chip, make the input of charging chip and the positive end of the output of charging chip close, thereby make the charging circuit break off immediately. After the short-circuit fault of the positive output end of the charging chip is cleared, the detection end of the detection module can detect that the voltage of the positive output end of the charging chip is larger than the preset voltage, and outputs a second control signal to the control end of the charging chip, so that the input end of the charging chip and the positive output end of the charging chip are opened, a charging circuit is immediately connected, the output recovery time is shortened, and the safety of a user is protected.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a charging adapter according to the present invention. This charging adapter includes:
the charging circuit comprises a charging chip 2, wherein the input end of the charging chip 2 is connected with the positive output end of a first power supply 1, and the positive output end of the charging chip 2 is connected with a load 4, and is used for disconnecting the charging circuit between the input end of the charging chip 2 and the positive output end of the charging chip 2 when receiving a first control signal and connecting the charging circuit between the input end of the charging chip 2 and the positive output end of the charging chip 2 when receiving a second control signal;
the detection module 3 is connected with the output positive end of the charging chip 2, and the control end of the detection module 3 is connected with the control end of the charging chip 2 and used for outputting a first control signal to the control end of the charging chip 2 when the short circuit between the output positive end and the output negative end of the charging chip 2 is detected; and outputting a second control signal to the control end of the charging chip 2 when detecting that the output positive end of the charging chip 2 and the output negative end of the charging chip 2 are not short-circuited.
The utility model discloses in, the adapter that charges includes charging chip 2 and detection module 3, and charging chip 2's structure can be as shown in fig. 2, and VIN in fig. 2 is charging chip 2's input, and VOUT is charging chip 2's output positive terminal, and GND is charging chip 2's output negative terminal, and RSET is charging chip 2's the end that resets, and EN is charging chip 2's control end. The detection terminal of the detection module 3 is connected to the positive output terminal of the charging chip 2, because when the positive output terminal of the charging chip 2 is not short-circuited, the voltage of the positive output terminal of the charging chip 2 is the charging voltage of the charging chip. Specifically, when the charging chip has the structure shown in fig. 2, the input terminal and the output positive terminal of the charging chip 2 are connected by the MOS transistor, and at this time, the voltage at the input terminal of the charging chip 2 is equal to the voltage at the output positive terminal of the charging chip 2. When the output positive terminal of the charging chip 2 is short-circuited, the output positive terminal of the charging chip 2 is short-circuited with the output negative terminal of the charging chip 2, and the output negative terminal of the charging chip 2 is grounded, so that the voltage of the output positive terminal of the charging chip 2 is 0V. When considering that the output positive terminal of the charging chip 2 is short-circuited and not short-circuited, the voltage of the output positive terminal of the charging chip 2 is different, and based on the voltage, the detection module is arranged in the application, and the detection end of the detection module 3 is connected with the output positive terminal of the charging chip 2, so that the short-circuit condition of the output positive terminal of the charging chip 2 can be timely detected.
In addition, because the control end of the charging chip 2 can control the opening and closing of the charging line between the input end of the charging chip 2 and the output positive end of the charging chip 2, so the control end of the detection module 3 is connected with the control end of the charging chip 2, after the detection end of the detection module 3 detects the output positive end short circuit of the charging chip 2, the detection module 3 outputs a first control signal to the control end of the charging chip 2, the charging line between the input end of the charging chip 2 and the output positive end of the charging chip 2 is disconnected in time, and when the detection module 3 detects that the output positive end of the charging chip 2 is not short-circuited, a second control signal is output to the control end of the charging chip 2, the input end of the charging chip 2 is connected in time with the charging line between the output positive ends of the charging chip 2, and the safety of a user is protected.
In practical applications, the first power source 1 may be a power chip, or may be a battery or other power source.
The utility model provides an adapter charges, during the positive end short circuit of output of charging chip 2, the positive end of output of charging chip 2 and the output negative terminal short circuit of charging chip 2 this moment, because the output negative terminal ground connection of charging chip 2, so the voltage that the detection end of detection module 3 can detect the positive end of output of charging chip 2 this moment is less than predetermined voltage for 0V, and export first control signal to charging chip 2's control end, make charging chip 2's input and charging chip 2's the positive end of output close, thereby make the charging line break off immediately. After the short-circuit fault of the positive output end of the charging chip 2 is cleared, the detection end of the detection module 3 can detect that the voltage of the positive output end of the charging chip 2 is larger than the preset voltage, and outputs a second control signal to the control end of the charging chip 2, so that the input end of the charging chip 2 and the positive output end of the charging chip 2 are opened, a charging circuit is immediately connected, the output recovery time is shortened, and the safety of a user is protected.
On the basis of the above-described embodiment:
referring to fig. 3, fig. 3 is a schematic structural diagram of another charging adapter provided by the present invention.
As a preferred embodiment, the charging chip 2 further includes a reset terminal; the charging adapter further includes:
the first end of the first resistor R1 is connected to ground, and the second end of the first resistor R1 is connected to the reset end of the charging chip 2.
The utility model discloses in, still connected first resistance R1 at charging chip 2's the end that resets, play the effect of current-limiting when charging chip 2 resets the operation, improved the stability of charging adapter work.
As a preferred embodiment, the charging adapter further includes:
and the first filtering module 6, wherein the first filtering module 6 is connected with the positive output end of the first power supply 1.
The utility model discloses in, the adapter that charges still includes first filtering module 6, and first filtering module 6 is connected with first power 1's positive output end, and the advantage is that the electric current that can transmit first power 1 carries out filtering clutter and interference, has improved the reliability of the adapter that charges work.
In practical applications, the first filtering module 6 may be a capacitor or other filtering module.
In a preferred embodiment, the first filtering module 6 is a first capacitor.
The utility model discloses in, first filtering module 6 is first electric capacity, can carry out filtering clutter and interference to the electric current that first power 1 transmitted, has improved the reliability of the adapter work that charges, adopts first electric capacity can reduce cost moreover, is some to make circuit structure simplifications.
As a preferred embodiment, the charging adapter further includes:
and the second filtering module 7, the second filtering module 7 is connected with the output positive terminal of the charging chip 2.
The utility model discloses in, the adapter that charges still includes second filtering module 7, and second filtering module 7 is connected with charging chip 2's the output positive terminal, can carry out filtering clutter and interference to the electric current that charging chip 2 output positive terminal spreads, has improved the reliability of the adapter work that charges.
In practical applications, the second filtering module 7 may be a capacitor or other filtering module.
In a preferred embodiment, the second filtering module 7 is a second capacitor.
The utility model discloses in, second filtering module 7 is the second electric capacity, can carry out filtering clutter and interference to the electric current that the positive end of charging chip 2 output spread, has improved the reliability of charging adapter work, adopts first electric capacity can reduce cost moreover, and it is the point makes circuit structure simplifications.
As a preferred embodiment, the charging adapter further includes:
and the alarm module 8 is connected with the control end of the charging chip 2, and is used for giving an alarm when the control end of the charging chip 2 receives the first control signal transmitted by the detection module 3.
The utility model discloses in, warning module 8 can send out and report an emergency and ask for help or increased vigilance when the control end of charging chip 2 receives the first control signal that detection module 3 transmitted, shows that the positive end short circuit of output of charging chip 2 this moment, needs the user in time to repair, has ensured user's safety, has improved the stability of charging adapter work.
In practical applications, the alarm module 8 may be a display alarm device, a sound alarm device, or other alarm modules.
In a preferred embodiment, the alarm module 8 is a display alarm device and/or an audible alarm device.
The utility model discloses in, what alarm module 8 adopted is for showing alarm device, audible alarm device, perhaps shows alarm device and audible alarm device, and the advantage can be more accurate indicate short-circuit fault, and the user of being convenient for sees and/hears, has ensured user's safety.
Please refer to fig. 4, fig. 4 is a schematic structural diagram of another charging adapter provided by the present invention.
As a preferred embodiment, the detection module 3 comprises:
a first end of the second resistor R2 is respectively connected with a first end of the third resistor R3 and a control end of the charging chip 2, and a second end of the second resistor R2 is connected with a second power supply;
and a second end of the third resistor R3 is connected with the positive output end of the charging chip 2.
The utility model discloses in, detection module 3 includes second resistance R2 and third resistance R3, after detecting the positive end short circuit of output of charging chip 2, when the positive end of output of charging chip 2's voltage is 0V promptly, second resistance R2 and third resistance R3 constitute bleeder circuit and export first control signal to charging chip 2's control end, first control signal is 0V's voltage, voltage is less than predetermined voltage this moment, judge the low level, because charging chip 2's control end if the low level that obtains can make charging chip 2's input and charging chip 2's the positive end of output close, thereby make the charging circuit disconnection between charging chip 2's the input and charging chip 2's the positive end of output. When detecting that the output positive terminal of the charging chip 2 is not short-circuited, the second control signal is output to the control terminal of the charging chip 2 by the second resistor R2 and the third resistor R3, and the second control signal is a voltage signal greater than a preset voltage and is determined to be a high level, because the control terminal of the charging chip 2 can open the input terminal of the charging chip 2 and the output positive terminal of the charging chip 2 if the control terminal of the charging chip 2 obtains the high level, so that the charging line between the input terminal of the charging chip 2 and the output positive terminal of the charging chip 2 is connected, the advantage is that the output positive terminal of the charging chip 2 can be immediately disconnected after short circuit, after the short circuit fault of the output positive terminal of the charging chip 2 is cleared, the charging line can be immediately connected, the output recovery time is shortened, the safety of a user is protected, and the other advantage is that the second resistor R2 and the third resistor R3 have low cost, strong practicability and long service life.
In practical applications, for example, when the input voltage of the second power supply is V1, the resistance of the second resistor R2 is R2, the resistance of the third resistor R3 is R3, and the first end of the second resistor R2 is connected to the first end of the third resistor R3 and the control end of the charging chip 2, respectively, when the output positive end of the charging chip 2 is short-circuited, the control end of the charging chip 2 receives a voltage V = R3V 1/R2+ R3, and at this time, the control end of the charging chip 2 receives a voltage smaller than a preset voltage, and at this time, the input end of the charging chip 2 and the output positive end of the charging chip 2 are closed, so that the charging line between the input end of the entire charging chip 2 and the output positive end of the charging chip 2 is disconnected.
As a preferred embodiment, the second power supply is the same power supply as the first power supply 1.
The utility model discloses in, the second power is same power with first power 1, and the cost is reduced has reduced the volume of the adapter that charges.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A charging adapter, comprising:
the input end of the charging chip is connected with the positive output end of a first power supply, the output positive end of the charging chip is connected with a load, and the charging chip is used for disconnecting a charging line between the input end of the charging chip and the output positive end of the charging chip when receiving a first control signal and connecting the charging line between the input end of the charging chip and the output positive end of the charging chip when receiving a second control signal;
the detection end of the detection module is connected with the positive output end of the charging chip, and the control end of the detection module is connected with the control end of the charging chip and used for outputting the first control signal to the control end of the charging chip after detecting that the positive output end and the negative output end of the charging chip are short-circuited; and when the situation that the output positive end of the charging chip and the output negative end of the charging chip are not short-circuited is detected, outputting the second control signal to the control end of the charging chip.
2. The charging adapter of claim 1, wherein the charging chip further comprises a reset terminal; the charging adapter further includes:
the first end of the first resistor is connected with the ground, and the second end of the first resistor is connected with the reset end of the charging chip.
3. The charging adapter of claim 2, wherein the charging adapter further comprises:
and the first filtering module is connected with the positive output end of the first power supply.
4. The charging adapter of claim 3, wherein the first filtering module is a first capacitor.
5. The charging adapter of claim 4, wherein the charging adapter further comprises:
and the second filtering module is connected with the positive output end of the charging chip.
6. The charging adapter of claim 5, wherein the second filtering module is a second capacitor.
7. The charging adapter of claim 6, wherein the charging adapter further comprises:
and the alarm module is connected with the control end of the charging chip and used for giving an alarm when the control end of the charging chip receives the first control signal transmitted by the detection module.
8. The charging adapter of claim 7, wherein the alarm module is a display alarm device and/or an audible alarm device.
9. The charging adapter of any one of claims 1 to 8, wherein the detection module comprises:
the first end of the second resistor is respectively connected with the first end of the third resistor and the control end of the charging chip, and the second end of the second resistor is connected with a second power supply;
and the second end of the third resistor is connected with the positive output end of the charging chip.
10. The charging adapter of claim 9, wherein the second power source is the same power source as the first power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222960836.9U CN218829076U (en) | 2022-11-07 | 2022-11-07 | Charging adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222960836.9U CN218829076U (en) | 2022-11-07 | 2022-11-07 | Charging adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218829076U true CN218829076U (en) | 2023-04-07 |
Family
ID=87044581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222960836.9U Active CN218829076U (en) | 2022-11-07 | 2022-11-07 | Charging adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218829076U (en) |
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2022
- 2022-11-07 CN CN202222960836.9U patent/CN218829076U/en active Active
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Address after: Building 613A, Building 5, Qilin Artificial Intelligence Industrial Park, No. 266 Chuangyan Road, Qilin Technology Innovation Park, Nanjing City, Jiangsu Province, 211135 Patentee after: Zhongke Wuqi (Nanjing) Technology Co.,Ltd. Address before: Room 1108, Quantum Core Tower, No. 27 Zhichun Road, Haidian District, Beijing, 100088 Patentee before: JEEJIO (BEIJING) TECHNOLOGY Co.,Ltd. |
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