CN113890151A - Energy-saving circuit, device and equipment - Google Patents
Energy-saving circuit, device and equipment Download PDFInfo
- Publication number
- CN113890151A CN113890151A CN202111170222.4A CN202111170222A CN113890151A CN 113890151 A CN113890151 A CN 113890151A CN 202111170222 A CN202111170222 A CN 202111170222A CN 113890151 A CN113890151 A CN 113890151A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- terminal
- module
- resistor
- plate
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 109
- 239000011810 insulating material Substances 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 11
- 230000003068 static effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The embodiment of the application provides an energy-saving circuit, device and equipment, the circuit includes: the power supply module comprises a power supply module, a first capacitor C1, a first resistor R1 and a load module, wherein a first end of the power supply module is connected with a first end of the first capacitor C1 and a first end of the first resistor R1, a second end of the power supply module is connected with a second end of the first capacitor C1 and a second end of the load module, and a second end of the first resistor R1 is connected with a first end of the load module; the first capacitor C1 is used for supplying power to the load module after the power supply module stops supplying power; if the power supply voltage of the first capacitor C1 is lower than the power supply voltage of the load module, the first capacitor C1 is configured to reduce the capacitor capacity of the first capacitor C1 to supply power to the load module, so that the waste of energy in a circuit can be reduced, and the utilization rate of energy is improved.
Description
Technical Field
The application relates to the technical field of circuit structures, in particular to an energy-saving circuit, an energy-saving device and energy-saving equipment.
Background
Modern science and technology is developed day by day, and electrical equipment quality and performance improve day by day, give people the life and bring the facility better for the safety of people. In the filtering application, the residual electric quantity is lost and wasted, for example, in a power supply, after the power supply is shut down, the voltage of a filter capacitor is reduced to a certain value, the power supply is shut down after the power supply is not enough to maintain the work of the power supply, the residual electric charge capacity in the capacitor is high, the residual electric charge capacity is slowly released at present, and the factor quantity is large, so that the energy waste is large.
Disclosure of Invention
The embodiment of the application provides an energy-saving circuit, an energy-saving device and energy-saving equipment, which can reduce the condition of energy waste in a circuit, and therefore the utilization rate of energy is improved.
A first aspect of an embodiment of the present application provides an energy saving circuit, where the circuit includes: a power supply module, a first capacitor C1, a first resistor R1 and a load module,
the first end of the power module is connected with the first end of the first capacitor C1 and the first end of the first resistor R1, the second end of the power module is connected with the second end of the first capacitor C1 and the second end of the load module, and the second end of the first resistor R1 is connected with the first end of the load module;
the first capacitor C1 is used for supplying power to the load module after the power supply module stops supplying power;
if the supply voltage of the first capacitor C1 is lower than the supply voltage of the load module, the first capacitor C1 is used to supply power to the load module by reducing the capacitance of the first capacitor C1.
With reference to the first aspect, in one possible implementation manner, the first capacitor C1 includes a first plate, a second plate and a first insulating material, wherein,
the first insulating material is disposed between the first plate and the second plate, and the first insulating material is configured to increase a distance between the first plate and the second plate when the amount of charge stored in the first capacitor C1 decreases, so as to decrease a capacitance of the first capacitor C1.
With reference to the first aspect, in one possible implementation manner, the first insulating material includes an elastic material.
With reference to the first aspect, in one possible implementation manner, the first capacitor C1 includes a third plate, a fourth plate and a second insulating material, wherein,
the second insulating material is arranged between the third plate and the fourth plate, and is used for reducing the facing area of the third plate and the fourth plate when the amount of charge stored in the first capacitor C1 is reduced, so as to reduce the capacitance capacity of the first capacitor C1.
With reference to the first aspect, in a possible implementation manner, the circuit further includes a filtering module, where the filtering module includes a second capacitor C2 and a second resistor R2, a first end of the second resistor R2 is connected to a second end of the first resistor R1 and a first end of the second capacitor C2, a second end of the second resistor R2 is connected to a first end of the load module, and a second end of the second capacitor C2 is grounded.
With reference to the first aspect, in a possible implementation manner, the power module includes an ac power supply terminal and a rectifying unit, the ac power supply terminal is connected to a first port and a third port of the rectifying unit, a second terminal of the rectifying unit is connected to a first terminal of a first capacitor C1 and a first terminal of the first resistor R1, and a fourth terminal of the rectifying unit is connected to a second terminal of the first capacitor C1 and a second terminal of the load module.
With reference to the first aspect, in one possible implementation manner, the circuit further includes a protection module, where the protection module includes a first zener diode D1, a second zener diode D2, a third capacitor C3, a fourth capacitor C4, and a third resistor R3, where,
a first end of the first zener diode D1 is connected to the first end of the first capacitor C1, a second end of the first zener diode D1 is connected to the first end of the second zener diode D1, a second end of the second zener diode D1 is connected to the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the third resistor R3, a second end of the third capacitor C3 is grounded, a second end of the fourth capacitor C4 is grounded, and a second end of the third resistor R3 is grounded.
With reference to the first aspect, in a possible implementation manner, the circuit further includes an electrostatic detection module, a first end of the electrostatic detection module is connected to a first end of the first capacitor C1, and the electrostatic detection module is configured to release the static electricity when it is detected that an electrostatic voltage in the circuit exceeds a preset threshold.
A second aspect of embodiments of the present application provides an energy saving device, which includes a circuit board and the energy saving circuit according to any one of the first aspect.
A third aspect of embodiments of the present application provides an energy saving apparatus comprising a housing and an energy saving device as described in the second aspect.
The embodiment of the application has at least the following beneficial effects:
the energy-saving circuit comprises a power module, a first capacitor C1, a first resistor R1 and a load module, wherein a first end of the power module is connected with a first end of the first capacitor C1 and a first end of the first resistor R1, a second end of the power module is connected with a second end of the first capacitor C1 and a second end of the load module, and a second end of the first resistor R1 is connected with a first end of the load module, wherein the first capacitor C1 is used for supplying power to the load module after the power module stops supplying power, if the power supply voltage of the first capacitor C1 is lower than the power supply voltage of the load module, the first capacitor C1 is used for supplying power to the load module by reducing the capacitance of the first capacitor C1, so that the load module can be supplied with power by reducing the capacitance of the first capacitor C1, thereby reducing the waste of energy and improving the energy utilization efficiency of the energy-saving circuit.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an energy saving circuit according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a first capacitor according to an embodiment of the present disclosure;
FIG. 3 provides a second schematic capacitance diagram for an embodiment of the present application;
fig. 4 is a schematic structural diagram of another power saving circuit according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another power saving circuit according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another power saving circuit according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another power saving circuit according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of an energy saving circuit according to an embodiment of the present disclosure. As shown in fig. 1, the power saving circuit includes: a power module 10, a first capacitor C1, a first resistor R1 and a load module 20,
a first terminal of the power module 10 is connected to a first terminal of the first capacitor C1 and a first terminal of the first resistor R1, a second terminal of the power module 10 is connected to a second terminal of the first capacitor C1 and a second terminal of the load module 20, and a second terminal of the first resistor R1 is connected to a first terminal of the load module 20;
the first capacitor C1 is used for supplying power to the load module 20 after the power module 10 stops supplying power;
if the supply voltage of the first capacitor C1 is lower than the supply voltage of the load module 20, the first capacitor C1 is used to supply power to the load module 20 by reducing the capacitance of the first capacitor C1.
In this example, the energy saving circuit includes a power module, a first capacitor C1, a first resistor R1, and a load module, a first end of the power module is connected to a first end of the first capacitor C1 and a first end of the first resistor R1, a second end of the power module is connected to a second end of the first capacitor C1 and a second end of the load module, and a second end of the first resistor R1 is connected to a first end of the load module, wherein the first capacitor C1 is configured to supply power to the load module after the power module stops supplying power, and if a supply voltage of the first capacitor C1 is lower than a supply voltage of the load module, the first capacitor C1 is configured to supply power to the load module by reducing a capacitor capacity of the first capacitor C1, so that the load module can be supplied with power by reducing the capacitor capacity through the first capacitor C1, thereby reducing the waste of energy and improving the energy utilization efficiency of the energy-saving circuit.
In one possible implementation, as shown in fig. 2, the first capacitor C1 includes a first plate 301, a second plate 302, and a first insulating material 303, wherein,
the first insulating material 303 is disposed between the first plate 301 and the second plate 302, and the first insulating material 303 is configured to increase a distance between the first plate 301 and the second plate 302 when an amount of charge stored in the first capacitor C1 is decreased, so as to decrease a capacitance of the first capacitor C1.
The first insulating material 303 may be a voltage sensitive material or a semiconductor material, and when the voltage is low, the positive and negative plate distances are increased, so that the capacitance is reduced, and the energy consumption (stored electric quantity) is also reduced. When the voltage rises to a certain value, the voltage sensitive material is changed into a conductor or a semiconductor material to be conducted, the distance between the capacitor plates becomes small, and the capacitance capacity becomes large. The thickness of the insulating medium is changed with the voltage after reaching the preset input voltage, so that the capacitance is adjustable. The capacitor is a constant voltage source, so that voltage fluctuation is reduced, and electric energy waste of some application occasions is avoided.
In one possible implementation, the first insulating material 303 comprises an elastic material. The resilient material may be an insulating material or a non-insulating material.
In one possible implementation, as shown in fig. 3, the first capacitor C1 includes a third plate 401, a fourth plate 402, and a second insulating material 403, wherein,
the second insulating material 403 is disposed between the third plate 401 and the fourth plate 402, and the second insulating material 403 is configured to reduce the facing area of the third plate 401 and the fourth plate 402 when the amount of charge stored in the first capacitor C1 is reduced, so as to reduce the capacitance capacity of the first capacitor C1.
The method for reducing the facing area between the third plate 401 and the fourth plate 402 may be to perform a dislocation process on the third plate 401 and the fourth plate 402 when the amount of charge is reduced, so as to reduce the facing area between the third plate 401 and the fourth plate 402.
In one possible implementation manner, as shown in fig. 4, the circuit further includes a filtering module, the filtering module includes a second capacitor C2 and a second resistor R2, a first end of the second resistor R2 is connected to a second end of the first resistor R1 and a first end of the second capacitor C2, a second end of the second resistor R2 is connected to a first end of the load module, and a second end of the second capacitor C2 is grounded.
In one possible implementation manner, as shown in fig. 5, the power module includes an ac power supply terminal and a rectifying unit 101, the ac power supply terminal is connected to a first port and a third port of the rectifying unit 101, a second terminal of the rectifying unit 101 is connected to a first terminal of a first capacitor C1 and a first terminal of the first resistor R1, and a fourth terminal of the rectifying unit 101 is connected to a second terminal of the first capacitor C1 and a second terminal of the load module 20.
In one possible implementation, as shown in fig. 6, the circuit further includes a protection module, which includes a first zener diode D1, a second zener diode D2, a third capacitor C3, a fourth capacitor C4, and a third resistor R3, wherein,
a first end of the first zener diode D1 is connected to the first end of the first capacitor C1, a second end of the first zener diode D1 is connected to the first end of the second zener diode D1, a second end of the second zener diode D1 is connected to the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the third resistor R3, a second end of the third capacitor C3 is grounded, a second end of the fourth capacitor C4 is grounded, and a second end of the third resistor R3 is grounded.
In one possible implementation manner, as shown in fig. 7, the circuit further includes a static electricity detection module 30, a first end of the static electricity detection module 50 is connected to a first end of the first capacitor C1, and the static electricity detection module 30 is configured to discharge the static electricity when detecting that a static electricity voltage in the circuit exceeds a preset threshold.
In one possible implementation, the present application provides an energy saving device, which includes a circuit board and the energy saving circuit as described in any one of the foregoing embodiments.
In one possible implementation manner, the embodiment of the present application provides an energy saving device, which is characterized by comprising a housing and an energy saving device as described in the foregoing embodiment.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash memory disks, read-only memory, random access memory, magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A power saving circuit, the circuit comprising: a power supply module, a first capacitor C1, a first resistor R1 and a load module,
the first end of the power module is connected with the first end of the first capacitor C1 and the first end of the first resistor R1, the second end of the power module is connected with the second end of the first capacitor C1 and the second end of the load module, and the second end of the first resistor R1 is connected with the first end of the load module;
the first capacitor C1 is used for supplying power to the load module after the power supply module stops supplying power;
if the supply voltage of the first capacitor C1 is lower than the supply voltage of the load module, the first capacitor C1 is used to supply power to the load module by reducing the capacitance of the first capacitor C1.
2. The circuit of claim 1, wherein the first capacitor C1 comprises a first plate, a second plate, and a first insulating material, wherein,
the first insulating material is disposed between the first plate and the second plate, and the first insulating material is configured to increase a distance between the first plate and the second plate when the amount of charge stored in the first capacitor C1 decreases, so as to decrease a capacitance of the first capacitor C1.
3. The circuit of claim 2, wherein the first insulating material comprises an elastomeric material.
4. The circuit of claim 1, wherein the first capacitor C1 comprises a third plate, a fourth plate, and a second insulating material, wherein,
the second insulating material is arranged between the third plate and the fourth plate, and is used for reducing the facing area of the third plate and the fourth plate when the amount of charge stored in the first capacitor C1 is reduced, so as to reduce the capacitance capacity of the first capacitor C1.
5. The circuit according to any one of claims 1-4, further comprising a filter module, wherein the filter module comprises a second capacitor C2 and a second resistor R2, a first terminal of the second resistor R2 is connected to a second terminal of the first resistor R1 and a first terminal of the second capacitor C2, a second terminal of the second resistor R2 is connected to a first terminal of the load module, and a second terminal of the second capacitor C2 is connected to ground.
6. The circuit of claim 5, wherein the power module comprises an AC power supply terminal and a rectifying unit, the AC power supply terminal is connected to the first port and the third port of the rectifying unit, the second terminal of the rectifying unit is connected to the first terminal of a first capacitor C1 and the first terminal of the first resistor R1, and the fourth terminal of the rectifying unit is connected to the second terminal of the first capacitor C1 and the second terminal of the load module.
7. The circuit of claim 6, further comprising a protection module comprising a first zener diode D1, a second zener diode D2, a third capacitor C3, a fourth capacitor C4, and a third resistor R3, wherein,
a first end of the first zener diode D1 is connected to the first end of the first capacitor C1, a second end of the first zener diode D1 is connected to the first end of the second zener diode D1, a second end of the second zener diode D1 is connected to the first end of the third capacitor C3, the first end of the fourth capacitor C4, and the first end of the third resistor R3, a second end of the third capacitor C3 is grounded, a second end of the fourth capacitor C4 is grounded, and a second end of the third resistor R3 is grounded.
8. The circuit according to claim 6 or 7, further comprising a static electricity detection module, wherein a first terminal of the static electricity detection module is connected to a first terminal of the first capacitor C1, and the static electricity detection module is configured to discharge the static electricity when detecting that a static electricity voltage in the circuit exceeds a preset threshold.
9. An energy saving device, characterized in that the device comprises a circuit board and an energy saving circuit according to any one of claims 1-8.
10. An energy saving device, characterized in that the device comprises a housing and an energy saving means according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170222.4A CN113890151A (en) | 2021-10-08 | 2021-10-08 | Energy-saving circuit, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170222.4A CN113890151A (en) | 2021-10-08 | 2021-10-08 | Energy-saving circuit, device and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113890151A true CN113890151A (en) | 2022-01-04 |
Family
ID=79005337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111170222.4A Pending CN113890151A (en) | 2021-10-08 | 2021-10-08 | Energy-saving circuit, device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113890151A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165541A (en) * | 1992-11-19 | 1994-06-10 | Nuclear Fuel Ind Ltd | Electric conversion and recovery methods of medium-and low-temperature waste heat |
| CN2364608Y (en) * | 1999-01-25 | 2000-02-16 | 高虹 | Overvoltage protection device for leakage protector |
| JP2001286146A (en) * | 2000-03-31 | 2001-10-12 | Sanyo Electric Co Ltd | Power-source unit |
| CN201733320U (en) * | 2010-07-15 | 2011-02-02 | 鸿富锦精密工业（深圳）有限公司 | Network equipment |
| CN108919936A (en) * | 2018-06-22 | 2018-11-30 | 北京小米移动软件有限公司 | The power-off protection apparatus and electronic equipment of electronic equipment |
| CN113241751A (en) * | 2021-04-20 | 2021-08-10 | 青岛易来智能科技股份有限公司 | Power supply circuit |
-
2021
- 2021-10-08 CN CN202111170222.4A patent/CN113890151A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165541A (en) * | 1992-11-19 | 1994-06-10 | Nuclear Fuel Ind Ltd | Electric conversion and recovery methods of medium-and low-temperature waste heat |
| CN2364608Y (en) * | 1999-01-25 | 2000-02-16 | 高虹 | Overvoltage protection device for leakage protector |
| JP2001286146A (en) * | 2000-03-31 | 2001-10-12 | Sanyo Electric Co Ltd | Power-source unit |
| CN201733320U (en) * | 2010-07-15 | 2011-02-02 | 鸿富锦精密工业（深圳）有限公司 | Network equipment |
| CN108919936A (en) * | 2018-06-22 | 2018-11-30 | 北京小米移动软件有限公司 | The power-off protection apparatus and electronic equipment of electronic equipment |
| CN113241751A (en) * | 2021-04-20 | 2021-08-10 | 青岛易来智能科技股份有限公司 | Power supply circuit |
Non-Patent Citations (1)
| Title |
|---|
| 黄伟民等: "《物理》", 高等教育出版社, pages: 30 - 33 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107948798B (en) | Charging box, wireless device and wireless earphone | |
| CN101021719A (en) | Electrical measurement-based control switch and switch control socket | |
| CN113890151A (en) | Energy-saving circuit, device and equipment | |
| CN101291003B (en) | Battery pack with exchangeable batteries and electronic equipment thereof | |
| CN206313492U (en) | A kind of quick charge controls circuit | |
| CN103164014B (en) | A kind of method of supplying power to, system and electric terminal | |
| CN102214952B (en) | Uninterruptible power supply system for avoiding electric arc generation and cabinet with same | |
| CN206922502U (en) | Power-down protection control circuit and electronic equipment | |
| CN110827510A (en) | Household appliance | |
| CN217035747U (en) | Wake-up detection circuit, battery management system and battery pack | |
| CN214068770U (en) | Automatic activation circuit for battery | |
| CN205945119U (en) | Portable power source with load automatic identification function | |
| CN207321106U (en) | A kind of filter circuit for large scale industry ceiling fan controller | |
| CN106972743B (en) | Capacitor discharge circuit, and module power supply and redundancy system with same | |
| CN220473661U (en) | Battery identification connection circuit, battery identification protection system and electrical apparatus | |
| CN213275787U (en) | Low-power-consumption terminal access detection circuit and electronic equipment | |
| CN215009602U (en) | Drive-by-wire ware and electrical equipment | |
| CN217112665U (en) | Battery detection circuit and storage battery system | |
| CN111092478B (en) | Power supply capacity expansion device and method | |
| CN219164252U (en) | Battery charging equipment | |
| CN218958539U (en) | Data storage processing circuit and electronic equipment | |
| CN203674738U (en) | Energy-saving battery capacity grading cabinet device | |
| CN108206686B (en) | Socket delay power failure alarm device | |
| CN220544749U (en) | Non-contact communication high-voltage power-taking circuit | |
| CN214059563U (en) | Gateway equipment for elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |