CN207867002U - Battery electric quantity checking device - Google Patents
Battery electric quantity checking device Download PDFInfo
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- CN207867002U CN207867002U CN201820321710.8U CN201820321710U CN207867002U CN 207867002 U CN207867002 U CN 207867002U CN 201820321710 U CN201820321710 U CN 201820321710U CN 207867002 U CN207867002 U CN 207867002U
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Abstract
This disclosure relates to which a kind of battery electric quantity checking device, is related to encoder battery field, which includes：First power supply, for providing first voltage for voltage comparator circuit；The voltage comparator circuit is respectively connected with first power supply and detected battery, for being compared to the cell voltage of the detected battery according to the first voltage, to obtain the range intervals where the cell voltage；Voltage range display circuit is connected with the voltage comparator circuit, for showing the range intervals where the cell voltage.The accident that encoder battery can thus be detected at any time, can not judge to prevent in advance when to avoid battery from breaking down, and encoder data is caused to lose, replaces encoder battery without the set time according to 2 years, has saved cost.
Description
Technical field
This disclosure relates to encoder battery field, and in particular, to a kind of battery electric quantity checking device.
Background technology
The use in workshop of robot is very universal, and is required for using operation motor in most of robot
Encoder, and run and be required for using encoder battery in motor encoder, the encoder battery is usually non-rechargeabel.It presses
According to the requirement for the producer for providing robot, which is consumables, is usually needed to change within every 2 years once, and workshop is given birth to
Robot quantity in producing line is excessive, if all replaced every time, it will take too long.In addition, from actual use situation
It is recognised that most encoder battery still can also maintain to be continuing with after using 2 years, directly required according to producer
Be replaced the waste that can cause battery cost.Secondly, the electricity of encoder battery can be measured directly currently without equipment,
May result in this way can not judge to prevent when there is battery failure in advance, to the thing for causing encoder data to lose
Therefore.
Utility model content
Purpose of this disclosure is to provide a kind of battery electric quantity checking device, which can carry out electricity to encoder battery
The section at place is quickly measured, and is displayed it convenient for observation.
To achieve the goals above, the disclosure provides a kind of battery electric quantity checking device, and described device includes the first power supply,
For providing first voltage for voltage comparator circuit；
The voltage comparator circuit is respectively connected with first power supply and detected battery, for according to described first
Voltage is compared the cell voltage of the detected battery, to obtain the range intervals where the cell voltage；
Voltage range display circuit is connected with the voltage comparator circuit, is used for the range where the cell voltage
Section is shown.
Optionally, the voltage comparator circuit includes the reference voltage production of the voltage comparator and predetermined number of predetermined number
It is raw to adjust unit, wherein to be mutually in parallel between the voltage comparator, between the reference voltage generation adjusting unit mutually simultaneously
Connection, the voltage comparator is generated with the reference voltage to be adjusted unit one-to-one correspondence and is connected with each other, the reference voltage production
The raw unit that adjusts according to the first voltage for being adjusted to generate reference voltage, described in connecting corresponding thereto
The reference voltage is compared by voltage comparator with the cell voltage；
The voltage range display circuit includes the light emitting diode of predetermined number, with the voltage comparator and the base
Quasi- voltage regulation unit corresponds, when the cell voltage is more than the reference voltage, with the generation reference voltage
Reference voltage generates the corresponding light emitting diode of adjusting unit and lights, to show the range intervals where the cell voltage.
Optionally, the voltage comparator circuit further includes first resistor, is series at first power supply and each base
Quasi- voltage generates between adjusting unit.
Optionally, the voltage range display circuit further includes the second resistance of predetermined number, with the light emitting diode
It corresponds, and is series between the light emitting diode and voltage comparator corresponding with the light emitting diode.
Optionally, described device further includes：
Circuit is protected, is series between the detected battery and the voltage comparator circuit, it is described tested for preventing
Survey the reversed caused damage of battery plus-negative plate.
Optionally, the protection circuit includes diode and filter capacitor, wherein the anode of the diode and the quilt
Detection battery be connected, the cathode of the diode is connected with one end of the filter capacitor, and with the voltage comparator circuit
It is connected, the other end ground connection of the filter capacitor.
Optionally, described device further includes digital electric energy detection unit, is connected with the detected battery, including can compile
Journey power supervisor and digital display tube, wherein the programmable power supply manager is used to detect the surplus of the detected battery
Remaining electricity, the digital display tube is for showing the remaining capacity.
Optionally, the digital electric energy detection unit further includes second source, for being the digital electric energy detection unit
Power supply is provided.
Optionally, the second source is rechargeable type power supply.
Optionally, described device further includes first switch, be series at first power supply and the voltage comparator circuit it
Between, for controlling cut-offfing of being connected between the voltage comparator circuit and first power supply by cut-offfing for its own.
Through the above technical solutions, voltage comparison unit can be according to the voltage that the first power supply provides come to being detected battery
Voltage be compared, to judge obtain be detected battery voltage where section, then voltage range display circuit according to
The comparison result that the voltage comparator obtains to be detected battery voltage where section show, thus can be at any time
Encoder battery is detected, can not judge to prevent in advance when to avoid battery from breaking down, and encoder data is caused to lose
Accident replaces encoder battery without the set time according to 2 years, has saved cost.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the schematic block diagram according to a kind of battery electric quantity checking device shown in one exemplary embodiment of the disclosure.
Fig. 2 is a kind of schematic diagram of battery electric quantity checking device shown according to disclosure another exemplary embodiment.
Fig. 3 is a kind of schematic block diagram of battery electric quantity checking device shown according to disclosure another exemplary embodiment.
Fig. 4 is a kind of schematic diagram of battery electric quantity checking device shown according to disclosure another exemplary embodiment.
Reference sign
1 detected battery, 10 first power supply
20 voltage comparator circuit, 30 voltage range display circuit
40 protection circuit, 50 digital electric energy detection unit
60 second source, 201 voltage comparator
202 reference voltages, which generate, adjusts 203 first resistor of unit
301 light emitting diode, 302 second resistance
401 diode, 402 filter capacitor
501 programmable power supply manager, 502 digital display tube
100 battery electric quantity checking device, 70 first switch
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Fig. 1 is the schematic block diagram according to a kind of battery electric quantity checking device shown in one exemplary embodiment of the disclosure.Such as
Shown in Fig. 1, the battery electric quantity checking device 100, including the first power supply 10, voltage comparator circuit 20 and voltage range display electricity
Road 30.
First power supply 10, for providing first voltage for voltage comparator circuit 20.First power supply 10 can be electricity
The built-in power of pond electric quantity detection apparatus 100 can also be external power supply, can be disposable power supply, can also be chargeable
Formula power supply.
The voltage comparator circuit 20 is respectively connected with first power supply 10 and detected battery 1, for according to
First voltage is compared the cell voltage of the detected battery 1, to obtain the range intervals where the cell voltage.
For example, it may be by the way that the cell voltage is compared with the first voltage, if the cell voltage is greater than or equal to
The first voltage, the then range intervals where obtaining the cell voltage are more than or equal to the first voltage, wherein institute
It states first voltage and could be provided as the critical value for not having to replace battery, i.e., when cell voltage is more than the first voltage, be detected
Battery 1 does not have to be replaced, and can be continuing with, for example, the voltage in the case where being detected 1 Full Power State of battery is the feelings of 3.5V
Under condition, the first voltage could be provided as 3.0V, i.e., should when judging that the cell voltage is more than the first voltage 3.0V
Being detected battery 1 can be continuing with；Alternatively, it is also possible to be by by the cell voltage with after treatment described first
Voltage is compared, for example, by handling the first voltage, obtains multiple second voltage values, by will be described more
A second voltage value is compared with the cell voltage, the range intervals where cell voltage to more be refined,
For example, in the case where the voltage under being detected 1 Full Power State of battery is 3.5V, the first voltage can be set as one
A voltage value more than 3.5V, then by carrying out decompression processing to the first voltage, respectively obtain 3.5V, 3.3V, 3.1V,
Multiple second voltages such as 3.0V, then by comparing multiple second voltage with cell voltage, to obtain battery electricity
The range intervals of pressure, if such as cell voltage be more than 3.0V, and be more than 3.3V, and be more than 3.3V, but be less than 3.5V, then battery electricity
Range intervals where pressure are i.e. in 3.3V between 3.5V.
The voltage range display circuit 30, is connected with the voltage comparator circuit 20, is used for the cell voltage institute
Range intervals show.The voltage range display circuit 30 can be by multiple display modes to the range intervals
It is shown, such as can show the range intervals where the cell voltage by way of dial, such as by scale
It is divided into more than two regions on disk, the range areas on dial pointed by pointer is the range where the cell voltage
Region can also show that the range areas where cell voltage, such as setting one or more refer to by way of indicator light
Show lamp, to indicate whether cell voltage is greater than or equal to the corresponding voltage value of one or more indicator light etc..
Through the above technical solutions, voltage comparator circuit 20 is one or many to the cell voltage progress for being detected battery 1
Compare, and comparison result is showed by voltage range display circuit 30, this makes it possible to more convenient staff to exist
It is easy to know the substantially battery electricity of detected battery 1 when detecting the electricity for being detected battery 1 using the battery electric quantity checking device
Pressure judges that this is detected whether battery 1 needs to be replaced so as to more convenient staff, preferably safeguards being detected electricity
Pond 1 can not judge to prevent when to avoid battery from breaking down in advance, and the accident for causing encoder data to lose, without
Encoder battery is replaced according to 2 years set times, has saved cost.
In a kind of possible embodiment, the voltage comparator circuit 20 includes the voltage comparator 201 of predetermined number
It is generated with the reference voltage of predetermined number and adjusts unit 202, wherein it is mutually in parallel between the voltage comparator 201, the base
Quasi- voltage is mutually in parallel between generating adjusting unit 202, and the voltage comparator 201 generates with the reference voltage and adjusts unit
202 correspond and are connected with each other, and the reference voltage, which generates, adjusts unit 202 for being adjusted according to the first voltage
To generate reference voltage, so that the voltage comparator 201 that connects corresponding thereto is by the reference voltage and the battery
Voltage is compared.The voltage range display circuit 30 includes the light emitting diode 301 of predetermined number, compared with the voltage
Device 201 and the reference voltage, which generate, adjusts the one-to-one correspondence of unit 202, when the cell voltage is more than the reference voltage,
Light emitting diode corresponding with the reference voltage generation adjusting unit 202 of the reference voltage is generated 301 lights, described in display
Range intervals where cell voltage.Wherein, the predetermined number can be one or more.
Fig. 2 is a kind of schematic diagram of battery electric quantity checking device shown according to disclosure another exemplary embodiment.Such as
Include that four voltage comparators 201 and four reference voltages generate and adjust unit shown in Fig. 2, in the voltage comparator circuit 20
202.It includes a slide rheostat that wherein reference voltage, which generates and adjusts unit 202, by the cunning for adjusting the slide rheostat
Piece adjusts the resistance value of slide rheostat, to which the first voltage that the first power supply 10 provides is reduced to different second voltages, for
The voltage comparator 201 being attached thereto is brought to be compared with cell voltage.In voltage range display circuit 30 shown in figure
Include four light emitting diodes 301, is also connected one by one with the voltage comparator 201 in voltage comparator circuit 20 respectively, to
So that a reference voltage, which generates, adjusts 202, voltage comparators 201 of unit and the formation of light emitting diode 301 one
Access, when the voltage comparator 201 coupled reference voltage is generated adjust unit 202 generate voltage and cell voltage into
When going and compare, and judging that cell voltage is greater than or equal to voltage caused by reference voltage generation adjusting unit 202, with the electricity
The light emitting diode 301 that pressure comparator 201 is connected lights, to show the range area being detected where the cell voltage of battery 1
Between.
For example, as shown in Figure 2, four reference voltages generate adjust units 202 can generate successively from top to bottom 3.5V,
The voltage of 3.3V, 3.1V and 3.0V, connected four voltage comparators 201 from top to bottom are respectively used to judge to be detected
Whether the cell voltage of battery 1 is more than 3.5V, whether is more than 3.3V, whether is more than 3.1V and whether is more than 3.0V.If being detected
The cell voltage of battery 1 is 3.4V, then the voltage comparator 201 in only lower three tunnels can be derived that cell voltage is more than in the road
Reference voltage generate the conclusion for adjusting the voltage that unit 202 generates, therefore the light emitting diode 301 in only lower three tunnels is bright
It rises, to which staff can judge that the cell voltage for being detected battery 1 is greater than from the light emitting diode 301 lighted
3.3V and less than 3.5V.
In a kind of possible embodiment, the voltage comparator circuit 20 further includes first resistor 203, is series at described
First power supply 10 and each reference voltage generate between adjusting unit 202.The first resistor 203 is for dropping circuit
Current limliting is pressed, to be protected to the element on circuit and circuit.The resistance value and rated power of the first resistor 203 can bases
Actual use situation is selected, and it is 200 Ω to provide its preferred resistance value herein, and preferred rated power is 2W.
In a kind of possible embodiment, the voltage range display circuit 30 further includes the second resistance of predetermined number
302, with the light emitting diode 301 correspond, and be series at the light emitting diode 301 and with the light emitting diode
Between 301 corresponding voltage comparators 201.The second resistance 302 is also used for carrying out decompression current limliting to circuit, to circuit
And such as light emitting diode 301 of the element on circuit is protected.The resistance value and rated power of the second resistance 302 and the first electricity
Resistance 203 can equally be selected according to actual use situation, and it is 10K Ω to provide its preferred resistance value herein, preferred specified
Power is 0.25W.
It is this field skill to carry out decompression current limliting using first resistor 203 and second resistance 302 to carry out protection to circuit
The common technological means of art personnel, just repeats no more herein.
It adjusts unit 202 through the above technical solutions, being generated according to one or more reference voltages, produced with the reference voltage
Life adjusts the one-to-one one or more voltage comparators 201 of unit 202 and the combination of light emitting diode 301 comes to being detected
The cell voltage of battery 1 is compared, and the range intervals where cell voltage to obtain being detected battery 1 thus can
More convenient staff judges that this is detected whether battery 1 needs to be replaced, and preferably safeguards being detected battery 1, to keep away
Exempt from the accident that can not be judged to prevent in advance when battery breaks down, and encoder data is caused to lose, consolidates without according to 2 years
It fixes time and encoder battery is replaced, saved cost.
Fig. 3 is a kind of schematic block of battery electric quantity checking device 100 shown according to disclosure another exemplary embodiment
Figure.As shown in figure 3, described device 100 further includes protection circuit 40, the detected battery 1 is series at compared with the voltage
Between circuit 20, for damage caused by preventing 1 positive and negative anodes of detected battery reversed.Circuit 40, energy are protected by setting
The safety of battery electric quantity checking device 100 is enough further enhanced, will not will be detected because of to being detected when battery 1 is detected
The damage of battery 1 is detected caused by survey battery 1 is reversed.
In a kind of possible embodiment, as shown in figure 3, described device 100 further includes digital electric energy detection unit 50,
It is connected with the detected battery 1, including programmable power supply manager 501 and digital display tube 502, wherein described to compile
Journey power supervisor 501 is used to detect the remaining capacity of the detected battery 1, and the digital display tube 502 is used for will be described
Remaining capacity is shown.The digital display tube 502 can be such as LCD display tubes, can also be other kinds of display
Equipment, as long as the remaining capacity that programmable power supply manager 501 can be detected to the obtained detected battery 1 is shown
The display equipment come.By the way that digital electric energy detection unit 50 is arranged, can directly exist after detected battery 1 in connection
The electricity percentages show of detected battery 1 is come out on digital display tube 502, to facilitate staff to combine voltage range
Range intervals where the cell voltage of detected battery 1 shown by display circuit 30 come to be detected the voltage of battery 1 into
Row judges, avoids as far as possible when certain block circuit breaks down in voltage comparator circuit 20 and voltage range display circuit 30 to tested
The case where cell voltage of survey battery 1 makes erroneous judgement.Simultaneously using digital electric energy detection unit 50 and voltage comparator circuit
20 and voltage range display circuit 30 to carry out double check to the cell voltage for being detected battery 1, can make testing result
Accuracy has double shield.
In a kind of possible embodiment, as shown in figure 3, described device 100 further includes second source 60, it is used for as institute
It states digital electric energy detection unit 50 and power supply is provided.Wherein, the second source 60 can be the built-in power of device 100, also may be used
It can be disposable power supply to be external power supply, can also be rechargeable type power supply.
In a kind of possible embodiment, the second source 60 and first power supply 10 can be the same electricity
Source, while providing power supply for the digital electric energy detection unit 50 and be that voltage comparator circuit 20 provides voltage.
In a kind of possible embodiment, as shown in figure 3, described device 100 further includes first switch 70, it is series at institute
It states between the first power supply 10 and the voltage comparator circuit 20, for cut-offfing the control voltage comparator circuit by its own
What is connected between 20 and first power supply 10 cut-offs.Wherein, the first switch 70 can be button switch, toggle switch,
Any form of switch such as pull switch, touch-switch.After the first switch 70 is closed, the first power supply 10 can be
The voltage comparator circuit 20 provides the voltage for being compared with the cell voltage of detected battery 1, and the voltage compares
Circuit 20 could judge the range intervals where being detected the cell voltage of battery 1, the voltage range display circuit
30 could show the range intervals being detected where the cell voltage of battery 1.
Fig. 4 is a kind of schematic diagram of battery electric quantity checking device 100 shown according to disclosure another exemplary embodiment.
As shown in figure 4, the protection circuit 40 include diode 401 and filter capacitor 402, wherein the anode of the diode 401 with
The detected battery 1 is connected, and the cathode of the diode 401 is connected with one end of the filter capacitor 402, and with it is described
Voltage comparator circuit 20 is connected, the other end ground connection of the filter capacitor 402.Wherein, the preferred specification of filter capacitor 402 is
100 μ F, preferred pressure voltage are 35V.The use of diode 401 and filter capacitor 402 as the protection circuit of battery is ability
Field technique personnel are known and common technological means, just repeat no more herein.
In a kind of possible embodiment, the battery electric quantity checking device 100 further includes that battery connector (does not show
Go out), for providing interface to connect the detected battery 1.
One kind according to a kind of battery electric quantity checking device 100 shown in a kind of exemplary embodiment of the disclosure is given below
Application method：
Selection needs detected detected battery 1 to be connected with battery electric quantity checking device 100 by battery connector,
The remaining capacity of the detected battery 1 can be directly shown in LCD digital display tubes by digital electric energy display unit 50 at this time
On；It is closed first switch 70, lights situation by light emitting diode in voltage range display circuit 30 and can judge to be detected
Range intervals where the cell voltage of battery 1, for example, it is assumed that four reference voltages generate adjusting list in Fig. 4
The voltage that member 202 can generate 3.5V, 3.3V, 3.1V and 3.0V successively from top to bottom, connected four from top to bottom
Voltage comparator 201 be respectively used to judge the cell voltage for being detected battery 1 whether be more than 3.5V, whether be more than 3.3V, whether
More than 3.1V and whether it is more than 3.0V.If the cell voltage for being detected battery 1 is 3.4V, the voltage in only lower three tunnels compares
Device 201 can be derived that the reference voltage that cell voltage is more than in the road generates the conclusion for adjusting the voltage that unit 202 generates, therefore
Light emitting diode 301 in only lower three tunnels lights, to which staff can judge from the light emitting diode 301 lighted
Range intervals where being detected the cell voltage of battery 1 are greater than 3.3V and are less than 3.5V's.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of battery electric quantity checking device, which is characterized in that described device includes：
First power supply, for providing first voltage for voltage comparator circuit；
The voltage comparator circuit is respectively connected with first power supply and detected battery, for according to the first voltage
The cell voltage of the detected battery is compared, to obtain the range intervals where the cell voltage；
Voltage range display circuit is connected with the voltage comparator circuit, is used for the range intervals where the cell voltage
It shows.
2. the apparatus according to claim 1, which is characterized in that the voltage comparator circuit includes the voltage ratio of predetermined number
It is generated compared with the reference voltage of device and predetermined number and adjusts unit, wherein it is mutually in parallel between the voltage comparator, the benchmark
Voltage is mutually in parallel between generating adjusting unit, and the voltage comparator generates adjusting unit with the reference voltage and corresponds
And be connected with each other, the reference voltage, which generates, adjusts unit for being adjusted according to the first voltage to generate benchmark electricity
Pressure, so that the reference voltage is compared by the voltage comparator connected corresponding thereto with the cell voltage；
The voltage range display circuit includes the light emitting diode of predetermined number, with the voltage comparator and benchmark electricity
Pressure adjusts unit and corresponds, when the cell voltage is more than the reference voltage, with the benchmark for generating the reference voltage
Voltage generates the corresponding light emitting diode of adjusting unit and lights, to show the range intervals where the cell voltage.
3. the apparatus of claim 2, which is characterized in that the voltage comparator circuit further includes first resistor, series connection
It is generated between adjusting unit in first power supply and each reference voltage.
4. the apparatus of claim 2, which is characterized in that the voltage range display circuit further includes predetermined number
Second resistance, with the light emitting diode correspond, and be series at the light emitting diode and with the light emitting diode phase
Between corresponding voltage comparator.
5. the apparatus according to claim 1, which is characterized in that described device further includes：
Circuit is protected, is series between the detected battery and the voltage comparator circuit, for preventing the detected electricity
Damage caused by pond positive and negative anodes are reversed.
6. device according to claim 5, which is characterized in that the protection circuit includes diode and filter capacitor, wherein
The anode of the diode is connected with the detected battery, one end phase of the cathode of the diode and the filter capacitor
Even, and it is connected with the voltage comparator circuit, the other end ground connection of the filter capacitor.
7. the device according to any claim in claim 1 to 6, which is characterized in that described device further includes number
Electric energy detection unit is connected with the detected battery, including programmable power supply manager and digital display tube, wherein institute
Remaining capacity of the programmable power supply manager for detecting the detected battery is stated, the digital display tube is used for will be described surplus
Remaining electricity is shown.
8. device according to claim 7, which is characterized in that described device further includes second source, for being the number
Word electric energy detection unit provides power supply.
9. device according to claim 8, which is characterized in that the second source is rechargeable type power supply.
10. the device according to any claim in claim 1 to 6, which is characterized in that described device further includes first
Switch, is series between first power supply and the voltage comparator circuit, for cut-offfing the control electricity by its own
What is connected between pressure comparison circuit and first power supply cut-offs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321710.8U CN207867002U (en) | 2018-03-08 | 2018-03-08 | Battery electric quantity checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321710.8U CN207867002U (en) | 2018-03-08 | 2018-03-08 | Battery electric quantity checking device |
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| Publication Number | Publication Date |
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| CN207867002U true CN207867002U (en) | 2018-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342521A (en) * | 2020-03-31 | 2020-06-26 | 珠海格力智能装备有限公司 | Encoder power supply device |
| CN113740745A (en) * | 2020-05-29 | 2021-12-03 | 北京金风科创风电设备有限公司 | Battery detection method, device, medium and system |
-
2018
- 2018-03-08 CN CN201820321710.8U patent/CN207867002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342521A (en) * | 2020-03-31 | 2020-06-26 | 珠海格力智能装备有限公司 | Encoder power supply device |
| CN113740745A (en) * | 2020-05-29 | 2021-12-03 | 北京金风科创风电设备有限公司 | Battery detection method, device, medium and system |
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