CN213364997U - Charger detection device, charger and fill electric pile - Google Patents
Charger detection device, charger and fill electric pile Download PDFInfo
- Publication number
- CN213364997U CN213364997U CN202021468541.4U CN202021468541U CN213364997U CN 213364997 U CN213364997 U CN 213364997U CN 202021468541 U CN202021468541 U CN 202021468541U CN 213364997 U CN213364997 U CN 213364997U
- Authority
- CN
- China
- Prior art keywords
- charger
- resistor
- control unit
- detection device
- switching module
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charger detection device, a charger and a charging pile, wherein the device comprises a control unit; the control end of the switch unit is connected with the output end of the control unit, the first end of the switch unit is connected with a test power supply, and the second end of the switch unit is connected with the anode of the charger; a first end of the first resistor is connected with a second end of the switch unit, and a second end of the first resistor is connected with a test end of the control unit; and the first end of the second resistor is connected with the second end of the first resistor, and the second end of the second resistor is connected with the negative electrode of the charger. The utility model discloses can realize the detection of charger circuit state, avoid charger short circuit state to insert and treat emergence accident behind the equipment that charges. The utility model discloses but wide application in electronic circuit technical field.
Description
Technical Field
The utility model belongs to the technical field of the electronic circuit technique and specifically relates to a charger detection device, charger and fill electric pile.
Background
The charging cabinet is a tool capable of charging batteries in batches, and the charger is an important part of the charging cabinet for charging external equipment. In the use process of the charger, the short circuit condition of the charger may occur, if the battery is connected at the moment, the battery is short-circuited, and the charging cabinet is ignited under severe conditions, so that great loss is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: provided are a charger detection device, a charger and a charging pile, which can effectively detect the circuit condition of the charger.
In a first aspect, an embodiment of the present invention provides:
a charger detection device, comprising:
a control unit;
the control end of the switch unit is connected with the output end of the control unit, the first end of the switch unit is connected with a test power supply, and the second end of the switch unit is connected with the anode of the charger;
a first end of the first resistor is connected with a second end of the switch unit, and a second end of the first resistor is connected with a test end of the control unit;
and the first end of the second resistor is connected with the second end of the first resistor, and the second end of the second resistor is connected with the negative electrode of the charger.
Further, the switch unit includes first switch module, second switch module, third resistance and fourth resistance, the base of first switch module passes through the third resistance with the output of control unit is connected, the projecting pole of first switch module with the negative pole of charger is connected, and the collecting electrode of first switch module passes through test power is connected to the fourth resistance, the grid of second switch module with the collecting electrode of first switch module is connected, test power is connected to the drain electrode of second switch module, the source electrode of second switch module with the first end of first resistance is connected.
Furthermore, the detection device further comprises a fifth resistor, and the source electrode of the second switch module is connected with the first end of the first resistor through the fifth resistor.
Furthermore, the detection device further comprises a diode, the anode of the diode is connected with the test power supply, and the cathode of the diode is connected with the drain electrode of the second switch module.
Furthermore, the detection device further comprises a first capacitor, and the first capacitor is connected in parallel with the second resistor.
Further, the detection device further comprises a wireless communication module, and the control unit is connected with an external device through the wireless communication module.
In a second aspect, an embodiment of the present invention provides:
a charger performs circuit detection through the charger detection device provided by the embodiment of the first aspect.
In a third aspect, an embodiment of the present invention provides:
a charging pile, which comprises the charger provided by the embodiment of the second aspect.
The embodiment of the utility model provides a beneficial effect is: the embodiment of the utility model provides a through setting up the control unit, the switch unit, first resistance and second resistance, and set up the switch unit between test power supply and charger, and the output through the control unit is connected with the control end of switch unit, and the test end of control unit is connected with the tie point of first resistance and second resistance, realizes the detection of charger circuit state with the break-make state through controller control switch unit, avoids the charger short circuit state to insert emergence accident behind the battery.
Drawings
Fig. 1 is a block diagram of a charger detection device according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a charger detection device according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
Referring to fig. 1 and 2, an embodiment of the present invention provides a charger detection device, which includes a control unit, a switch unit, a first resistor R1 and a second resistor R2, specifically, a control end of the switch unit is connected to an output end of the control unit, a first end of the switch unit is connected to a test power supply, and a second end of the switch unit is connected to an anode of the charger; a first end of the first resistor R1 is connected with a second end of the switch unit, and a second end of the first resistor R1 is connected with a test end of the control unit; the first end of the second resistor R2 is connected with the second end of the first resistor R1, and the second end of the second resistor R2 is connected with the negative pole of the charger.
In this embodiment, the control unit may be a microprocessor. When the control unit controls the switch unit to be in a closed state, the test end of the control unit receives zero voltage. When the control unit controls the switch unit to be in a conducting state, if the voltage received by the test end of the control unit is zero voltage, the output end of the charger is in a short-circuit state at the moment, the device to be charged is easily damaged when the device to be charged is connected in the situation, and in a serious situation, a fire disaster may occur to cause life and property loss, for example, when a battery is connected in, an explosion condition may occur; if the test end of the control unit receives a voltage value, and the voltage value is obtained by dividing the voltage according to the resistance ratio of the first resistor and the second resistor, the charger is in an open circuit state, and the charging operation can be normally carried out.
The interface state of the charger is judged according to the voltage value received by the testing end of the control unit, so that the fault state is effectively prevented from being connected into the device to be charged, the safety of the charger in the using process is improved, and the loss is reduced.
In some embodiments, as shown in fig. 2, the switching unit includes a first switching module, a second switching module, a third resistor R3, and a fourth resistor R4, and specifically, the first switching module may be a transistor Q1, the second switching module may be a CMOS transistor Q2, wherein a base of the transistor Q1 is connected to the output terminal of the control unit through a third resistor R3, an emitter of the transistor Q1 is connected to the negative electrode of the charger, a collector of the transistor Q1 is connected to a test power source through the fourth resistor R4, a gate of the CMOS transistor Q2 is connected to the collector of the transistor, a drain of the CMOS transistor Q2 is connected to the test power source, and a source of the CMOS transistor Q2 is connected to the first end of the first resistor.
After the output port of the charger is connected in this embodiment, if the control unit outputs a high level to the base of the triode Q1, the triode Q1 is turned on, and the gate of the CMOS transistor Q2 is at a low level, so that the CMOS transistor Q2 is turned off, and thus, the test end of the control unit receives a zero voltage; if the control unit outputs a low level to the base of the transistor Q1, the transistor Q1 is turned off, and the gate of the CMOS transistor Q2 is at a high level, so that the CMOS transistor Q2 is turned on, in this case, if the test end of the control unit receives the voltage divided by the second resistor R2, it indicates that the output port of the charger is in an open state, and if the test end of the control unit receives a zero voltage or a voltage not divided by the second resistor R2, it indicates that the output port of the charger is in an abnormal state, such as a short circuit. Through foretell test result, can provide the personnel that charge and just use this charger to charge when the circuit is normal to when the circuit is unusual, remind maintainer to carry out circuit maintenance.
In some embodiments, as shown in fig. 2, the detection apparatus further includes a fifth resistor R5, and the source of the second switch module is connected to the first end of the first resistor R1 through the fifth resistor R5. In the embodiment, the fifth resistor R5 is additionally arranged, so that when the test voltage is higher, the device is prevented from being damaged.
In some embodiments, as shown in fig. 2, the detection apparatus further includes a diode D1, the anode of the diode D1 is connected to the test power source, and the cathode of the diode D1 is connected to the drain of the second switch module. This embodiment is through setting up the one-way device that switches on, keeps apart both ends circuit, protection circuit safety.
In some embodiments, the detection apparatus further comprises a first capacitor C1, and the first capacitor C1 is connected in parallel with the second resistor R2. In the embodiment, the first capacitor C1 is arranged to perform filtering processing through the first capacitor, so that the accuracy of the test result is improved.
In some embodiments, as shown in fig. 1, the detection apparatus further includes a wireless communication module, and the control unit is connected to an external device through the wireless communication module. The external device may be a host computer, such as a computer. The wireless communication module may be a WiFi module. In this embodiment, the wireless communication module is arranged to realize interaction between the remote external device and the control unit, thereby realizing a remote monitoring function.
An embodiment of the utility model provides a charger, its charger detection device through above-mentioned embodiment detects. So as to improve the safety of the charger in the using process.
Furthermore, the utility model also provides a fill electric pile, it contains the charger that above-mentioned embodiment provided. The port that this embodiment carried out the charger through charger detection device detects to the security in the electric pile use is filled in the improvement.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (8)
1. A charger detection device, comprising:
a control unit;
the control end of the switch unit is connected with the output end of the control unit, the first end of the switch unit is connected with a test power supply, and the second end of the switch unit is connected with the anode of the charger;
a first end of the first resistor is connected with a second end of the switch unit, and a second end of the first resistor is connected with a test end of the control unit;
and the first end of the second resistor is connected with the second end of the first resistor, and the second end of the second resistor is connected with the negative electrode of the charger.
2. The device as claimed in claim 1, wherein the switching unit includes a first switching module, a second switching module, a third resistor and a fourth resistor, the base of the first switching module is connected to the output terminal of the control unit through the third resistor, the emitter of the first switching module is connected to the negative electrode of the charger, the collector of the first switching module is connected to the test power source through the fourth resistor, the gate of the second switching module is connected to the collector of the first switching module, the drain of the second switching module is connected to the test power source, and the source of the second switching module is connected to the first terminal of the first resistor.
3. The device as claimed in claim 2, wherein the detection device further comprises a fifth resistor, and the source of the second switch module is connected to the first end of the first resistor through the fifth resistor.
4. The device as claimed in claim 2, further comprising a diode, wherein the anode of the diode is connected to the test power source, and the cathode of the diode is connected to the drain of the second switching module.
5. The device as claimed in claim 1, further comprising a first capacitor connected in parallel with the second resistor.
6. The device as claimed in claim 1, wherein the detection device further comprises a wireless communication module, and the control unit is connected to an external device through the wireless communication module.
7. A charger characterized by circuit detection by the charger detection device of any one of claims 1 to 6.
8. A charging pile comprising the charger according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021468541.4U CN213364997U (en) | 2020-07-22 | 2020-07-22 | Charger detection device, charger and fill electric pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021468541.4U CN213364997U (en) | 2020-07-22 | 2020-07-22 | Charger detection device, charger and fill electric pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364997U true CN213364997U (en) | 2021-06-04 |
Family
ID=76142470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021468541.4U Active CN213364997U (en) | 2020-07-22 | 2020-07-22 | Charger detection device, charger and fill electric pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364997U (en) |
-
2020
- 2020-07-22 CN CN202021468541.4U patent/CN213364997U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110365074B (en) | Battery, terminal and charging system | |
| CN104638718A (en) | Intelligent management system and method of electric vehicle battery | |
| CN204376464U (en) | A kind of battery of electric vehicle intelligent management system | |
| CN103178595A (en) | Mobile phone adapter | |
| CN202014087U (en) | Lithium battery charging protection circuit for portable system | |
| JP2022542526A (en) | Composite current collectors, electrode sheets, electrochemical devices and electronic devices | |
| CN110336357A (en) | A kind of novel lithium battery protection board | |
| CN103187713A (en) | Overvoltage protection circuit and portable electronic device | |
| CN207426719U (en) | Charged state detects and electricity condition latching circuit | |
| CN112311038A (en) | Charging and discharging protection circuit, terminal equipment and battery discharging control method | |
| CN103490390A (en) | Battery management system and method with double protective functions | |
| CN211127282U (en) | Uninterrupted energy storage power supply system of lithium battery | |
| CN213364997U (en) | Charger detection device, charger and fill electric pile | |
| CN104600763A (en) | Under-voltage protection circuit and lamp | |
| CN2938522Y (en) | Overload protection circuit of power lithium ion battery | |
| CN207819473U (en) | A kind of low-power consumption battery pack | |
| CN201298735Y (en) | Lithium-ion battery protection device and an application device thereof | |
| CN208028620U (en) | A kind of lithium battery is full of automatically cutting off protection circuit | |
| CN104065043B (en) | Battery under-voltage protection and display circuit | |
| CN202405764U (en) | Over-current protective system for parallel battery packs | |
| CN215343943U (en) | Battery charging protection circuit and robot | |
| CN106655107A (en) | High power lithium battery protector | |
| CN211320944U (en) | Novel lithium battery protection plate | |
| CN109217261B (en) | lithium battery system | |
| CN208723604U (en) | The battery management system of function is used with classification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |