CN108092404A - Remote transmitting gas meter with reserve battery - Google Patents
Remote transmitting gas meter with reserve battery Download PDFInfo
- Publication number
- CN108092404A CN108092404A CN201711466965.XA CN201711466965A CN108092404A CN 108092404 A CN108092404 A CN 108092404A CN 201711466965 A CN201711466965 A CN 201711466965A CN 108092404 A CN108092404 A CN 108092404A
- Authority
- CN
- China
- Prior art keywords
- reserve battery
- battery
- gas meter
- diode
- remote transmitting
- 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
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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention discloses a kind of remote transmitting gas meter with reserve battery, and including remote transmitting gas meter and reserve battery, reserve battery is powered by power supply circuit to remote transmitting gas meter；Power supply circuit includes：Diode D1, diode D2 and diode D3, the anode of diode D1 is connected with common power supply, the cathode of diode D1 is connected with the anode of diode D2, cathode one end of diode D2 is connected with remote transmitting gas meter, the other end is connected with the cathode of diode D3, and the anode of diode D3 is connected with reserve battery；And the voltage value of reserve battery is less than the voltage value of common power supply.The configuration of the present invention is simple, when user's battery is fitted without or battery owes electricity, reserve battery can power to meter automatically, do not moved in if so installing initial stage user in meter, still readable to meter data, add meter reading success rate.
Description
Technical field
The present invention relates to a kind of remote transmitting gas meters with reserve battery.
Background technology
Remote installed meter was not using reserve battery, when user is fitted without battery or battery capacity deficiency, combustion gas in the past
Company can not copy and accept user with destiny evidence and valve state, and so if user's valve breaks down, possible user exists always
Using combustion gas, and gas company is really unaware of, and can only be visited and be checked.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of remote transmitting gas meter with reserve battery.
In order to achieve the above object, technical scheme is as follows：
A kind of remote transmitting gas meter with reserve battery, including remote transmitting gas meter and reserve battery, reserve battery passes through power supply
Circuit is powered to remote transmitting gas meter, and power supply circuit includes：Diode D1, diode D2 and diode D3, the anode of diode D1
It is connected with common power supply, the cathode of diode D1 is connected with the anode of diode D2, and the cathode of diode D2 fires respectively with teletransmission
Gas meter is connected with the cathode of diode D3, and the anode of diode D3 is connected with reserve battery, and the voltage value of reserve battery is less than
The voltage value of common power supply；Voltage monitoring equipment is electrically connected with reserve battery, for detecting the electricity of reserve battery.
When common supply voltage value is higher than backup battery voltage value, powered from common power supply to remote transmitting gas meter, when normal
When being less than backup battery voltage value with supply voltage value, reserve battery is powered to remote transmitting gas meter.Voltage monitoring equipment can have
Effect is monitored the electricity of reserve battery.
When user's battery is fitted without or battery owes electricity, reserve battery can power to meter automatically, so in meter
If installation initial stage user does not move in, still readable to meter data adds meter reading success rate, in meter use
If meter battery owes electric user and do not replace battery, gas company can also copy and accept meter data, and according to meter shape
State can prompt user to replace battery.
Based on the above technical solutions, following improvement can also be done：
As preferred scheme, reserve battery is arranged in battery case.
Using the above preferred scheme, reserve battery is protected.
As preferred scheme, be equipped with buzzer and/or indicator light on battery case, buzzer and/or indicator light with
Voltage monitoring equipment is electrically connected, when the electricity of reserve battery is less than setting value, buzzer and/or indicator light work.
Using the above preferred scheme, the user replacement or charging that carry out reserve battery are prompted.
As preferred scheme, battery case includes the first shell portion of rotation connection and second shell portion.
Using the above preferred scheme, it is simple in structure.
As preferred scheme, in the inner surface in first shell portion and/or second shell portion with photovoltaic cell, photovoltaic
Cell piece is used to charge to reserve battery.
Using the above preferred scheme, it is more environmentally friendly.
As preferred scheme, elastic connecting component and magnetism are equipped in the junction in first shell portion and second shell portion
Absorbent module, elastic connecting component are the spring being arranged in first shell portion and/or second shell portion, and magnetic absorption component is
The electromagnet being arranged in first shell portion and second shell portion, electromagnet are electrically connected with voltage monitoring equipment.
Using the above preferred scheme, when the electricity of reserve battery is less than setting value, voltage monitoring equipment control first shell
Electromagnet in body portion and second shell portion is the same sex, and first shell portion and second shell portion are mutually exclusive, are flicked by spring,
The photovoltaic cell of first shell portion and/or second shell body inner surface is showed, and charges for reserve battery.
As preferred scheme, waterproof coating is equipped on the surface of battery case.
Using the above preferred scheme, waterproof effect is improved.
As preferred scheme, multiple thermal vias are equipped on battery case, heat dissipation is installed on the thermal vias
Stick.
Using the above preferred scheme, heat dissipation effect is improved.
As preferred scheme, stretched into heat-radiating rod and through hole is equipped on the part of battery case.
Using the above preferred scheme, better heat-radiation effect.
As preferred scheme, the hole size on adjacent heat radiation stick is different.
Using the above preferred scheme, better heat-radiation effect.
Description of the drawings
Fig. 1 is the schematic diagram of the power supply circuit of the remote transmitting gas meter provided in an embodiment of the present invention with reserve battery.
Fig. 2 is the structure diagram of battery case provided in an embodiment of the present invention.
Wherein：Battery case 1, first shell portion 11, second shell portion 12, spring 2, electromagnet 3.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
In order to reach the purpose of the present invention, in a kind of some of embodiments of the remote transmitting gas meter with reserve battery, one
Remote transmitting gas meter of the kind with reserve battery, including remote transmitting gas meter, reserve battery and voltage monitoring equipment, reserve battery passes through confession
Circuit is powered to remote transmitting gas meter.
As shown in Figure 1, power supply circuit includes：Diode D1, diode D2 and diode D3, the anode of diode D1 with often
With power supply VCC1 connections, the cathode of diode D1 is connected with the anode of diode D2, the cathode of the diode D2 respectively with far
The feeder ear VCC_IN for passing gas meter, flow meter is connected with the cathode of diode D3, and the anode of diode D3 is connected with reserve battery VCC2；
And the voltage value VCC2 of reserve battery is less than the voltage value VCC1 of common power supply.
Voltage monitoring equipment is electrically connected with reserve battery, and for detecting the electricity of reserve battery, voltage monitoring equipment can be with
Effectively the electricity of reserve battery is monitored.
Common power source supplying voltage is 6V, and reserve battery supply voltage is 3.7V, commonly use power supply by two diode D1,
It powers after D2 to remote transmitting gas meter, voltage value 6V-0.3*2=5.4V, and reserve battery is given far after a diode D3
It is 3.7V-0.3V=3.4V to pass gas meter, flow meter supply voltage.
When common supply voltage value is higher than backup battery voltage value, powered from common power supply to remote transmitting gas meter, when normal
When being less than backup battery voltage value with supply voltage value, reserve battery is powered to remote transmitting gas meter.
When user's battery is fitted without or battery owes electricity, reserve battery can power to meter automatically, so in meter
If installation initial stage user does not move in, still readable to meter data adds meter reading success rate, in meter use
If meter battery owes electric user and do not replace battery, gas company can also copy and accept meter data, and according to meter shape
State can prompt user to replace battery.
In order to further optimize the implementation result of the present invention, in other embodiment, remaining feature technology phase
Together, the difference is that, reserve battery is arranged in battery case 1.
Using the above preferred scheme, reserve battery is protected.
Further, buzzer and/or indicator light, buzzer and/or indicator light and voltage monitoring are equipped on battery case 1
Device is electrically connected, when the electricity of reserve battery is less than setting value, buzzer and/or indicator light work.
Using the above preferred scheme, the user replacement or charging that carry out reserve battery are prompted.
As shown in Figure 2 in order to further optimize the implementation result of the present invention, in other embodiment, remaining is special
Sign technology is identical, the difference is that, it further includes：Voltage monitoring equipment is electrically connected with reserve battery, for detecting standby electricity
The electricity in pond, reserve battery are arranged in battery case 1.Battery case 1 includes the first shell portion 11 and second of rotation connection
Housing section 12.
Using the above preferred scheme, it is simple in structure.
Further, (do not show in figure with photovoltaic cell in the inner surface in first shell portion 11 and second shell portion 12
Go out), photovoltaic cell is used to charge to reserve battery.
Using the above preferred scheme, it is more environmentally friendly.
Further, elastic connecting component and magnetic absorption are equipped in the junction in first shell portion 11 and second shell portion 12
Component, elastic connecting component are the spring 2 being arranged in first shell portion, and magnetic absorption component is to be arranged at first shell portion 11
With the electromagnet 3 in second shell portion 12, electromagnet 3 is electrically connected with voltage monitoring equipment.
Using the above preferred scheme, when the electricity of reserve battery is less than setting value, voltage monitoring equipment control first shell
Electromagnet in body portion 11 and second shell portion 12 is the same sex, and first shell portion 11 and second shell portion 12 are mutually exclusive, pass through
Spring 2 flicks, and the photovoltaic cell of 12 inner surface of first shell portion 11 and second shell portion is showed, and charges for reserve battery.
When the electricity of reserve battery is less than setting value, voltage monitoring equipment control first shell portion 11 and second shell portion
Electromagnet on 12 is the opposite sex, and first shell portion 11 and second shell portion 12 attract each other, and utilize the dead weight in second shell portion 12
It pushes and closes.
Further, it is equipped with waterproof coating on the surface of battery case 1.
Using the above preferred scheme, waterproof effect is improved.
Further, multiple thermal vias (not shown)s are equipped on battery case 1, are equipped on the thermal vias
Heat-radiating rod (not shown).
Using the above preferred scheme, heat dissipation effect is improved.
Further, stretched into heat-radiating rod and through hole is equipped on the part of battery case 1.
Using the above preferred scheme, better heat-radiation effect.
Above is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art,
Without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (10)
1. a kind of remote transmitting gas meter with reserve battery, including remote transmitting gas meter, which is characterized in that further include：
Reserve battery, the reserve battery are powered by power supply circuit to the remote transmitting gas meter, and the power supply circuit includes：Two
Pole pipe D1, diode D2 and diode D3, the anode of the diode D1 are connected with common power supply, the cathode of the diode D1
Be connected with the anode of the diode D2, the cathode of the diode D2 respectively with the feeder ear of the remote transmitting gas meter and described
The cathode connection of diode D3, the anode of the diode D3 is connected with the reserve battery, and the voltage of the reserve battery
Value is less than the voltage value of the common power supply；
Voltage monitoring equipment is electrically connected with the reserve battery, for detecting the electricity of the reserve battery.
2. the remote transmitting gas meter according to claim 1 with reserve battery, which is characterized in that the reserve battery is arranged at
In battery case.
3. the remote transmitting gas meter according to claim 2 with reserve battery, which is characterized in that set on the battery case
There are buzzer and/or indicator light, the buzzer and/or indicator light are electrically connected with the voltage monitoring equipment, when described spare
When the electricity of battery is less than setting value, the buzzer and/or indicator light work.
4. the remote transmitting gas meter according to claim 3 with reserve battery, which is characterized in that the battery case includes turning
The first shell portion of dynamic connection and second shell portion.
5. the remote transmitting gas meter according to claim 4 with reserve battery, which is characterized in that in the first shell portion
And/or the inner surface in second shell portion, with photovoltaic cell, the photovoltaic cell is used to charge to the reserve battery.
6. the remote transmitting gas meter according to claim 5 with reserve battery, which is characterized in that in the first shell portion and
The junction in the second shell portion is equipped with elastic connecting component and magnetic absorption component, and the elastic connecting component is to be arranged at
Spring in the first shell portion and/or the second shell portion, the magnetic absorption component are to be arranged at the first shell
Electromagnet in body portion and/or the second shell portion, the electromagnet are electrically connected with the voltage monitoring equipment.
7. according to remote transmitting gas meter of the claim 2-6 any one of them with reserve battery, which is characterized in that in the battery
The surface of housing is equipped with waterproof coating.
8. according to remote transmitting gas meter of the claim 2-6 any one of them with reserve battery, which is characterized in that in the battery
Housing is equipped with multiple thermal vias, and heat-radiating rod is equipped on the thermal vias.
9. the remote transmitting gas meter according to claim 8 with reserve battery, which is characterized in that stretch into institute in the heat-radiating rod
The part for stating battery case is equipped with through hole.
10. the remote transmitting gas meter according to claim 9 with reserve battery, which is characterized in that in the adjacent heat-radiating rod
Hole size it is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466965.XA CN108092404A (en) | 2017-12-28 | 2017-12-28 | Remote transmitting gas meter with reserve battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466965.XA CN108092404A (en) | 2017-12-28 | 2017-12-28 | Remote transmitting gas meter with reserve battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108092404A true CN108092404A (en) | 2018-05-29 |
Family
ID=62179758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711466965.XA Pending CN108092404A (en) | 2017-12-28 | 2017-12-28 | Remote transmitting gas meter with reserve battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108092404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725669A (en) * | 2018-12-29 | 2019-05-07 | 南通理工学院 | Constant temperature and humidity controller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168673A (en) * | 2000-12-01 | 2002-06-14 | Matsushita Electric Ind Co Ltd | Gas meter |
| CN201937324U (en) * | 2010-12-16 | 2011-08-17 | 曹国权 | Power supply device with double power sources |
| CN202261398U (en) * | 2011-09-02 | 2012-05-30 | 天津亚旭科技发展有限公司 | B/S architecture remote monitoring instrument monitoring system based on GSM/GPRS communication network |
| CN103997090A (en) * | 2014-05-23 | 2014-08-20 | 徐侠 | Foldable solar energy portable power source |
| CN207801567U (en) * | 2017-12-28 | 2018-08-31 | 东本电气科技(苏州)有限公司 | Remote transmitting gas meter with reserve battery |
-
2017
- 2017-12-28 CN CN201711466965.XA patent/CN108092404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168673A (en) * | 2000-12-01 | 2002-06-14 | Matsushita Electric Ind Co Ltd | Gas meter |
| CN201937324U (en) * | 2010-12-16 | 2011-08-17 | 曹国权 | Power supply device with double power sources |
| CN202261398U (en) * | 2011-09-02 | 2012-05-30 | 天津亚旭科技发展有限公司 | B/S architecture remote monitoring instrument monitoring system based on GSM/GPRS communication network |
| CN103997090A (en) * | 2014-05-23 | 2014-08-20 | 徐侠 | Foldable solar energy portable power source |
| CN207801567U (en) * | 2017-12-28 | 2018-08-31 | 东本电气科技(苏州)有限公司 | Remote transmitting gas meter with reserve battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725669A (en) * | 2018-12-29 | 2019-05-07 | 南通理工学院 | Constant temperature and humidity controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI477017B (en) | Control system, power supply system, and method for preventing floating charge of battery | |
| CN207265123U (en) | Battery for electric automobile babinet | |
| CN105553092A (en) | Emergency power supply capable of switching backup batteries by hot plug | |
| CN107979123B (en) | Power supply self-adaptive lithium battery charging management circuit | |
| CN207801567U (en) | Remote transmitting gas meter with reserve battery | |
| CN108092404A (en) | Remote transmitting gas meter with reserve battery | |
| CN102543238A (en) | Alpha and beta ray capacitive nuclear battery | |
| CN105140995A (en) | Safe and reliable portable power source | |
| CN204422765U (en) | A kind of hand-held radioactive source detector | |
| CN208874325U (en) | A kind of certainly cooling power module of unmanned plane | |
| CN208781147U (en) | A kind of host for big data display systems | |
| CN207625344U (en) | A kind of DC UPS | |
| CN205921434U (en) | Dual supply direct current stabilizer | |
| CN206559450U (en) | A kind of body temperature charge mobile phone containment vessel | |
| US20160099583A1 (en) | Power connector for a battery management system | |
| CN211405534U (en) | Power supply circuit of mobile equipment | |
| CN204989352U (en) | A ultra -low power consumption watchdog circuit for fault indicator | |
| CN105006603B (en) | Has the secondary Assembled battery of overcharge electric discharge device | |
| CN205829244U (en) | The low-power consumption electric supply installation of microprocessor system | |
| CN205212525U (en) | Portable solar power bank | |
| CN220872777U (en) | Glasses leg and AR glasses using same | |
| CN108879908A (en) | A kind of recycling pumping unit falls the energy recovery utilizing system of generated energy | |
| CN216290329U (en) | Control device based on NB-IOT remote valve | |
| CN211670674U (en) | Main and standby power supply circuit switching device | |
| CN216253711U (en) | Novel radiator |
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 |