CN208001152U - Battery protection device and load device - Google Patents
Battery protection device and load device Download PDFInfo
- Publication number
- CN208001152U CN208001152U CN201820311087.8U CN201820311087U CN208001152U CN 208001152 U CN208001152 U CN 208001152U CN 201820311087 U CN201820311087 U CN 201820311087U CN 208001152 U CN208001152 U CN 208001152U
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- 230000004224 protection Effects 0.000 title abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 41
- 230000005669 field effect Effects 0.000 claims description 87
- 230000000087 stabilizing effect Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 10
- 230000005611 electricity Effects 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An embodiment of the utility model provides a battery protection device and load device, battery protection device includes: the charging device comprises a monitoring module, a charging module and a switch module, wherein the monitoring module is connected with the switch module; the monitoring module is connected with the charging module, and the switch module is connected with the charging module and a battery of the load equipment; the monitoring module is used for controlling the switch module to be in a disconnected state according to the voltage value detected by the switch module so as to protect the battery. When the power consumption is low, the voltage value of the battery is lower than the battery protection voltage, at the moment or when the battery enters a long-time shutdown state, the battery is disconnected from the circuit of the load device, the storage time of the product is greatly prolonged, the damage to the battery core caused by over-discharge of the battery can be avoided in the use process of the product, and the potential safety hazard caused by recharging after the damage caused by over-discharge of the battery can be prevented.
Description
Technical field
The utility model is related to electronic circuit technology fields, are filled in particular to a kind of battery protecting apparatus and load
It sets.
Background technology
Currently, wearable device such as bracelet wrist-watch is largely powered using lithium ion battery, lithium ion battery was overcharging
Protection board protection is generally had when letting off stream, is forced down in lithium ion battery battery and is cut off battery output when protecting voltage, but by
Lossy in battery itself, voltage drop constantly declines cell voltage as time goes by after battery output shutdown, and similar products close
Machine overlong time or user's use, which exhaust electricity after a long time, causes cell voltage too low.When charging activated batteries protection
When plate again charges to battery core, battery core brownout at this time, battery bulge or explosion on fire will be had by continuing charging for a long time
Risk.Being generally worn by formula interiors of products battery can not cut off with circuit system, and the big power consumption of electric current is high after system closedown, and product passes through
Electricity declines serious after certain storage time, and low battery influences user's body when market terminal consumer being caused to take product
It tests, and battery was in the state of putting when power consumption is to battery protection voltage, it is larger to cell damage that battery life is caused to reduce, and
And battery is crossed to put depth and also result in battery and causes different damages, there are security risks for charging again.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of battery protecting apparatus and load device, effectively to change
Kind drawbacks described above.
What the embodiments of the present invention were realized in the following way:
In a first aspect, the utility model embodiment provides a kind of battery protecting apparatus, it is applied to a load equipment, packet
It includes:Monitoring module, charging module and switch module, the monitoring module are connect with the switch module;The monitoring module with
The charging module connection, the switch module are connect with the battery of the charging module the and described load equipment;The prison
Module is controlled, the voltage value for detecting the battery according to switch module controls the switch module according to the voltage value
It is off, to protect battery.
Further, the monitoring module includes:Processing unit and sampling unit;The sampling unit, for passing through
It states switch module and samples the voltage value;The processing unit, the voltage for being transmitted according to the sampling unit
Value drives the switch module to be off.
Further, the switch module includes:First field-effect tube, the second field-effect tube, third field-effect tube;It is described
The drain electrode of first field-effect tube is connect with the anode of the battery, the source electrode of first field-effect tube and second field-effect
The source electrode of pipe connects, and the grid of the first field-effect tube pipe is connect with the grid of second field-effect tube, described second
The grid of effect pipe is connect with the drain electrode of the third field-effect tube, the source electrode ground connection of the third field-effect tube, the third
The grid of field-effect tube is connect with second resistance one end.
Further, the switch module further includes:First resistor and the second resistance;One end of the first resistor
It is connect respectively with the source electrode of the source electrode of first field-effect tube and second field-effect tube, the other end of the first resistor
It is connect with the grid of the grid of first field-effect tube and second field-effect tube, the other end of the second resistance and institute
State the connection of monitoring module.
Further, the sampling unit includes:3rd resistor and the 4th resistance, one end of the 3rd resistor with it is described
The drain electrode of third field-effect tube connects, the one end and the processing unit of the other end of the 3rd resistor with the 4th resistance
Connection, the other end ground connection of the 4th resistance.
Further, the charging module includes:Charging chip;The input terminal of the charging chip and the one of external power supply
End connection, the output end of charging chip connect with the drain electrode of second field-effect tube;The charging chip is used for institute
The charging and voltage stabilizing filtering for stating external power supply input is exported to the switch module.
Further, the battery protecting apparatus further includes:Voltage stabilizing module, the Voltage stabilizing module respectively with the charging
Module, the switch module are connected with the monitoring module;The Voltage stabilizing module is used for the charging module or the switching molding
The voltage step-down voltage stabilizing that block provides is exported to the monitoring module, and electric energy is provided for the monitoring module.
Further, the Voltage stabilizing module, including:4th field-effect tube and three terminal regulator;4th field-effect tube
Source electrode connect with the input terminal of the three terminal regulator, the output end of the three terminal regulator is connect with the monitoring module,
The source electrode of 4th field-effect tube is connect with the source electrode of second field-effect tube.
Further, the Voltage stabilizing module further includes:5th resistance and the 6th resistance;One end of 5th resistance and institute
State one end connection of external power supply, the other end of the 5th resistance simultaneously with the grid of the 4th field-effect tube and described the
The other end of six resistance connects, one end ground connection of the 6th resistance.
Second aspect, the utility model embodiment provide a kind of load equipment, and the load equipment includes:Above-mentioned battery
Protective device, load equipment ontology and battery, the battery protecting apparatus are connect with the load equipment ontology, the battery with
The battery protecting apparatus connection.
The utility model embodiment has the advantages that:
Since in the combination for one or more embodiments that the utility model embodiment provides, there are a kind of battery protections
Device, is applied to a load equipment, and the battery protecting apparatus includes:Monitoring module, charging module and switch module, the prison
Control module is connect with the switch module;The monitoring module is connect with the charging module, and the switch module is filled with described
Electric module is connected with the battery of the load equipment;The monitoring module, for detecting the battery according to switch module
Voltage value, the switch module is controlled according to the voltage value and is off, to protect battery.When power consumption is consumed to low
When, the voltage value of the battery can be less than battery protection voltage, when at this time or entering prolonged off-mode, disconnect battery
It is connect with the circuit of the load device, the storage time of product will be greatly prolonged, electricity can also be avoided during product use
Pond, which is crossed, puts damage battery core, is also prevented from because battery crosses after putting damage security risk caused by charging again,
Based on the above advantageous effect, the utility model is realized indicates that sound pick-up is with efficiency and in time by indicator light
No faulty technique effect, facilitates field adjustable with engineering maintenance.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.Shown in attached drawing, the above and other purpose, feature and advantage of the utility model will more
Clearly.Identical reference numeral indicates identical part in whole attached drawings.Do not painted by actual size equal proportion scaling deliberately
Attached drawing processed, it is preferred that emphasis is show the purport of the utility model.
Fig. 1 shows a kind of structure diagram for load equipment that the utility model first embodiment provides;
Fig. 2 shows a kind of structure diagrams for battery protecting apparatus that the utility model second embodiment provides;
Fig. 3 shows a kind of structural frames of the monitoring module for battery protecting apparatus that the utility model second embodiment provides
Figure;
Fig. 4 shows a kind of circuit structure diagram for battery protecting apparatus that the utility model second embodiment provides.
Icon:10- load equipments;100- battery protecting apparatus;11- batteries;12- load equipment ontologies;110- monitors mould
Block;120- charging modules;130- switch modules;140- Voltage stabilizing modules;111- processing units;112- sampling units.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Term " first ", " second ", " third " etc. are only used for distinguishing description in the description of the present invention, and cannot
It is interpreted as indicating or implying relative importance.And in the description of the present invention, it should also be noted that, unless otherwise clear
Regulation and restriction, term " connection ", " coupling " shall be understood in a broad sense, and can also be detachable for example, it may be being fixedly connected
Connection, or be integrally connected;It can be mechanical connection, can also be electrical connection;It can be directly connected, centre can also be passed through
Medium is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
First embodiment
Referring to Fig. 1, the utility model first embodiment provides a kind of load equipment 10, the load equipment 10 wraps
It includes:Battery protecting apparatus 100, load equipment ontology 11 and battery 12.Wherein, the battery protecting apparatus 100 and the load
10 ontology of equipment connects, and the battery 12 is connect with the battery protecting apparatus 100.
The battery protecting apparatus 100 disconnects battery 12 and 10 ontology of load equipment, when the entrance of load equipment 10 is long
Between off-mode, such as in transit or when warehouse is medium, the battery protecting apparatus 100 by the battery 12 with it is described negative
10 ontology of equipment is carried thoroughly to disconnect.Load equipment 10, if cell voltage is very low, charges after long-time is stored in a warehouse
The security risks such as battery bulge or explosion on fire can occur in the process, detect that cell voltage is too low when charging, shutdown is filled
The connection of circuit and battery 12 prevents charging safety accident.It can pass through external 5V after the shutdown of 10 complete machine of load equipment
USB power source or outside 5V charging interfaces activation 10 complete machine of load equipment booting.
Second embodiment
Please refer to Fig. 2, Fig. 3 and Fig. 4
The utility model second embodiment provides a kind of battery protecting apparatus 100, is applied to a load equipment 10.It is described
Battery protecting apparatus 100, including:Monitoring module 110, charging module 120 and switch module 130, the monitoring module 110 and institute
State the connection of switch module 130;The monitoring module 110 is connect with the charging module 120, the switch module 130 with it is described
Charging module 120 is connected with the battery of the load equipment 10;
The monitoring module 110, the voltage value for detecting the battery according to switch module 130, according to the electricity
Pressure value controls the switch module 130 and is off, to protect battery.
In addition, the switch module 130 includes:First field-effect tube Q1, the second field-effect tube Q2, third field-effect tube
Q3;The anode connection of the drain electrode battery of the first field-effect tube Q1, the described in the source electrode of the first field-effect tube Q1
The source electrode of two field-effect tube Q2 connects, and the grid of the first field-effect tube Q1 pipes and the grid of the second field-effect tube Q2 connect
It connects, the grid of the second field-effect tube Q2 is connect with the drain electrode of the third field-effect tube Q3, the third field-effect tube Q3
Source electrode ground connection, the grid of the third field-effect tube Q3 connect with the one end second resistance R2.
Furthermore the switch module 130 further includes:The first resistor R1 and second resistance R2;The first resistor R1
One end connect respectively with the source electrode of the source electrode of the first field-effect tube Q1 and the second field-effect tube Q2, it is described first electricity
The other end of resistance R1 connect described second with the grid of the grid of the first field-effect tube Q1 and the second field-effect tube Q2
The connection of the other end of resistance R2 and the monitoring module 110.
When the grid of third field-effect tube Q3 receives a low level signal, switch tube grid drags down, anode voltage
By the first field-effect tube Q1, after first resistor R1, the source electrode of the first field-effect tube Q1 and the second field-effect tube Q2's
With same current potential at source electrode, with same current potential at the grid of the grid of the first field-effect tube Q1 and the second field-effect tube Q2, first
Field-effect tube Q1, the second field-effect tube Q2 and third field-effect tube Q3 are in cut-off state, and the switch module 130 is disconnected at this time
Road.
In addition, the monitoring module 110 includes:Processing unit 111 and sampling unit 112;The sampling unit 112 is used
In sampling the voltage value by the switch module 130;The processing unit 111, for according to the sampling unit
The voltage value of 112 transmission drives the switch module 130 to be off.The processing unit 111 is microcontroller
U1。
In addition, sampling unit 112 includes:3rd resistor R3 and the 4th resistance R4, described in one end of the 3rd resistor R3
The drain electrode of 4th field-effect tube Q4 connects, the other end of the 3rd resistor R3 simultaneously with the other end of the 4th resistance R4 and
First pin of the microcontroller connects, one end ground connection of the 4th resistance R4.
In addition, the charging module 120 includes:Charging chip U3;The input terminal and external power supply of the charging chip U3
One end connection, the output end of the charging chip U3 connect with the drain electrode of the second field-effect tube Q2;The charging chip
U3, the charging and voltage stabilizing filtering for inputting the external power supply are exported to the switch module 130.
When the load equipment 10 charge in the power-offstate restart activation after enter charging detection program, start first by
The detection circuit of 3rd resistor R3, the 4th resistance R4 and first singlechip U1 compositions, and detect cell voltage.When detecting battery
When voltage is less than preset value, the preset value is battery protection voltage or is less than battery protection voltage value, such as battery is electric at this time
It forces down and starts battery protection program at once in 2.5V, microcontroller U1, the ports PO2 of microcontroller U1 export the low level signal,
The grid of third field-effect tube Q3 drags down, anode voltage by the first field-effect tube Q1, after first resistor R1, first
With same current potential, the grid of the first field-effect tube Q1 and at the source electrode of the source electrode of field-effect tube Q1 and the second field-effect tube Q2
With same current potential, the first field-effect tube Q1, the second field-effect tube Q2 and third field-effect tube Q3 at the grid of two field-effect tube Q2
In cut-off state, 130 open circuit of the switch module, the load device ontology are fully disconnected with the battery at this time.
In addition the battery protecting apparatus 100 further includes:Voltage stabilizing module 140, the Voltage stabilizing module 140 respectively with it is described
Charging module 120, the switch module 130 and the monitoring module 110 connect;The Voltage stabilizing module 140 is used for the charging
The voltage step-down voltage stabilizing that module 120 or the switch module 130 provide is exported to the monitoring module 110, is the monitoring mould
Block 110 provides electric energy.
Wherein, the Voltage stabilizing module 140, including:4th field-effect tube Q4 and three terminal regulator U2;4th field-effect
The source electrode of pipe Q4 is connect with the input terminal VIN of the three terminal regulator U2, the output end OUT of the three terminal regulator U2 with it is described
Monitoring module 110 connects, and the 4th field-effect tube Q4 is connect with one end of the second field-effect tube Q2.
In addition, the Voltage stabilizing module 140 further includes:5th resistance R5 and the 6th resistance R6;The one of the 5th resistance R5
End is connect with one end of the external power supply, the other end of the 5th resistance R5 while the grid with the 4th field-effect tube Q4
Pole is connected with the other end of the 6th resistance R6, one end ground connection of the 6th resistance R6.The external power supply is to described negative
When carrying this bulk charging, the 4th field-effect tube cut-off disconnects the battery and 10 ontology of the load equipment, by external electrical
Source powers to 10 ontology of the load equipment.
After the load equipment 10 enters shutdown mode by product touch function or physical button triggering, when the electricity
When the low battery of pond, the voltage value of the battery can be less than preset voltage value, and the voltage value that microcontroller U1 detects the battery is low
When the preset voltage value, the ports PO2 of microcontroller U1, which export a low level signal, at this time makes the switch module 130
Open circuit, the load device ontology are fully disconnected with the battery.
Battery powered is closed, product realizes complete machine power cutoff.
When the load device is during normal use, and non-charging and external trigger enter shutdown mode, monolithic
The machine U1 setting set times open the monitoring module 110 and detect battery voltage value, and the battery voltage value to read back is passed through
Internal ADC conversion circuits are converted to digital signal, and microcontroller U1 closes the low battery of the battery voltage value and program setting
Machine voltage value compares, if the battery voltage value is less than the low battery shutdown voltage value at this time, starts shutdown programm
Cut off the connection of battery and circuit system.If the battery voltage value is more than the low battery shutdown voltage value, product is normal
It is functional using institute.
In summary:The utility model embodiment provides a kind of battery protecting apparatus 100, is applied to a load equipment
10, the battery protecting apparatus 100 includes:Monitoring module 110, charging module 120 and switch module 130, the monitoring module
110 connect with the switch module 130;The monitoring module 110 is connect with the charging module 120, the switch module 130
It is connect with the battery of the charging module 120 the and described load equipment 10;The monitoring module 110, for according to switching molding
Block 130 detects the voltage value of the battery, and controlling the switch module 130 according to the voltage value is off, with
Protect battery.When power consumption consumption to it is low when, the voltage value of the battery can be less than battery protection voltage, at this time or enter for a long time
Off-mode when, disconnect battery connect with the circuit of the load device, the storage time of product will be greatly prolonged, product makes
Damage battery core is put with battery can also be avoided to cross in the process, is also prevented from because battery is crossed after putting damage caused by charging again
Security risk.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of battery protecting apparatus is applied to a load equipment, which is characterized in that including:It monitoring module, charging module and opens
Module is closed, the monitoring module is connect with the switch module;The monitoring module is connect with the charging module, the switch
Module is connect with the battery of the charging module the and described load equipment;
The monitoring module, the voltage value for detecting the battery according to switch module control institute according to the voltage value
It states switch module to be off, to protect battery.
2. battery protecting apparatus according to claim 1, which is characterized in that the monitoring module includes:Processing unit and
Sampling unit;
The sampling unit, for sampling the voltage value by the switch module;
The processing unit, the voltage value for being transmitted according to the sampling unit drive the switch module to be in and disconnect
State.
3. battery protecting apparatus according to claim 2, which is characterized in that the switch module includes:First field-effect
Pipe, the second field-effect tube, third field-effect tube;
The drain electrode of first field-effect tube is connect with the anode of the battery, the source electrode of first field-effect tube and described the
The source electrode of two field-effect tube connects, and the grid of first field-effect tube is connect with the grid of second field-effect tube, described
The grid of second field-effect tube is connect with the drain electrode of the third field-effect tube, the source electrode ground connection of the third field-effect tube, institute
The grid for stating third field-effect tube is connect with second resistance one end.
4. battery protecting apparatus according to claim 3, which is characterized in that the switch module further includes:First resistor
With the second resistance;One end of the first resistor respectively with the source electrode of first field-effect tube and second field-effect
The source electrode of pipe connects, the grid and second field-effect tube of the other end of the first resistor and first field-effect tube
Grid connects, the connection of the other end of the second resistance and the monitoring module.
5. battery protecting apparatus according to claim 4, which is characterized in that sampling unit includes:3rd resistor and the 4th
Resistance, one end of the 3rd resistor are connect with the drain electrode of the third field-effect tube, the other end of the 3rd resistor and institute
The one end for stating the 4th resistance is connected with the processing unit, the other end ground connection of the 4th resistance.
6. battery protecting apparatus according to claim 5, which is characterized in that the charging module includes:Charging chip;Institute
State charging chip input terminal and external power supply one end connect, institute charging chip output end and second field-effect tube
Drain electrode connection;
The charging chip, the charging and voltage stabilizing filtering for inputting the external power supply are exported to the switch module.
7. battery protecting apparatus according to claim 6, which is characterized in that further include:Voltage stabilizing module, the Voltage stabilizing module
It is connect respectively with the charging module, the switch module and the monitoring module;
The Voltage stabilizing module, the voltage step-down voltage stabilizing provided for the charging module or the switch module are exported to the prison
Module is controlled, electric energy is provided for the monitoring module.
8. battery protecting apparatus according to claim 7, which is characterized in that the Voltage stabilizing module, including:4th field-effect
Pipe and three terminal regulator;The source electrode of 4th field-effect tube is connect with the input terminal of the three terminal regulator, and three end is steady
The output end of depressor is connect with the monitoring module, the source electrode of the source electrode and second field-effect tube of the 4th field-effect tube
Connection.
9. battery protecting apparatus according to claim 8, which is characterized in that the Voltage stabilizing module further includes:5th resistance
With the 6th resistance;One end of 5th resistance is connect with one end of the external power supply, and the other end of the 5th resistance is same
When connect with the other end of the grid of the 4th field-effect tube and the 6th resistance, one end of the 6th resistance ground connection.
10. a kind of load equipment, which is characterized in that the load equipment includes:Such as claim 1-9 any one of them batteries
Protective device, load equipment ontology and battery, the battery protecting apparatus are connect with the load equipment ontology, the battery with
The battery protecting apparatus connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311087.8U CN208001152U (en) | 2018-03-06 | 2018-03-06 | Battery protection device and load device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820311087.8U CN208001152U (en) | 2018-03-06 | 2018-03-06 | Battery protection device and load device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001152U true CN208001152U (en) | 2018-10-23 |
Family
ID=63837670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820311087.8U Expired - Fee Related CN208001152U (en) | 2018-03-06 | 2018-03-06 | Battery protection device and load device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001152U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087036A (en) * | 2020-09-21 | 2020-12-15 | 深圳市爱都科技有限公司 | Battery activation device and terminal equipment |
| CN114243870A (en) * | 2022-02-23 | 2022-03-25 | 荣耀终端有限公司 | Over-discharge protection circuit, battery protection board and electronic equipment |
| CN114256939A (en) * | 2022-02-25 | 2022-03-29 | 荣耀终端有限公司 | Over-discharge protection circuit, battery protection board and electronic equipment |
-
2018
- 2018-03-06 CN CN201820311087.8U patent/CN208001152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087036A (en) * | 2020-09-21 | 2020-12-15 | 深圳市爱都科技有限公司 | Battery activation device and terminal equipment |
| CN114243870A (en) * | 2022-02-23 | 2022-03-25 | 荣耀终端有限公司 | Over-discharge protection circuit, battery protection board and electronic equipment |
| CN114256939A (en) * | 2022-02-25 | 2022-03-29 | 荣耀终端有限公司 | Over-discharge protection circuit, battery protection board and electronic equipment |
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