CN209134131U - One kind not powering off dual DC power supply distributor - Google Patents

One kind not powering off dual DC power supply distributor Download PDF

Info

Publication number
CN209134131U
CN209134131U CN201821654814.7U CN201821654814U CN209134131U CN 209134131 U CN209134131 U CN 209134131U CN 201821654814 U CN201821654814 U CN 201821654814U CN 209134131 U CN209134131 U CN 209134131U
Authority
CN
China
Prior art keywords
power supply
power
terminals side
face
terminal hole
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.)
Expired - Fee Related
Application number
CN201821654814.7U
Other languages
Chinese (zh)
Inventor
谢坤松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O Dear International Corp ltd
Original Assignee
O Dear International Corp ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by O Dear International Corp ltd filed Critical O Dear International Corp ltd
Priority to CN201821654814.7U priority Critical patent/CN209134131U/en
Application granted granted Critical
Publication of CN209134131U publication Critical patent/CN209134131U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems 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
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

Abstract

The utility model one kind does not power off dual DC power supply distributor, the main main power source power supply unit for providing two groups of DC power supplies and reserve source of electrical power supply device make power supply and distribute to multiple groups load device, and positive supply, negative supply and ground connection are divided into electrically with the terminal of red, black, green respectively, between each group load device and power circuit, it is separately connected fuse holder and LED power indicator light, it is ensured that power supply circuit nonoverload;When main power source power supply unit breaks down, relay can automatically switch to reserve source of electrical power supply device immediately and supply electricity to load device, and LED power indicator light can be switched to power off by energization;In addition, user can connect external monitor by connector, each group power supply circuit is monitored, synchronous recording or activating alarm notify that personnel show up processing.

Description

One kind not powering off dual DC power supply distributor
Technical field
The utility model relates to a kind of electric power source distribution devices, more particularly to a kind of electric power source distribution device of not power down function.
Background technique
Old-fashioned terminal board is a kind of terminal of industrial wiring, and common is with multiple rows of groups of fixed kenel, between being provided with Every multiple fence type terminals of arrangement, to provide functional circuit and electrical power distribution, the use for connecting equipment, such standard fixed The terminal board of state is fixed as including multiple input and output terminals due to pattern, the demand being unable to satisfy in power supply centralized management, and And also need careful wiring and management;Furthermore multiple terminals arrange the electrical property for its connection that is not easily distinguishable, when what is connect with terminal board When board or main frame interrupt, being difficult the time differentiates which group connection line goes wrong, therefore in the route of connection In, about the important line of power supply, positive electricity or negative electricity, signal wire, even if posting using open-wire line road content for label, provide Operation is convenient, but have the disadvantage is that: equally failure can not find out the route after being fallen using label, therefore still have line management many Problem.
Old-fashioned terminal board when being connected with load and power supply, power supply and load between working condition, because of old-fashioned terminal Platform lacks instruction function, and when leading to occur disconnection fault, equipment, can not be by old-fashioned because there be not power supply to generate shutdown, halt production phenomenon It is many problem of of need to differentiating such as terminal board is notified in real time, or even does not know when occur, and faulty line position is unknown, right It is quite inefficent for reparation person.
Utility model content
The utility model main purpose is that providing one kind does not power off dual direct current distributor, with not power down function, leads to Know the extraneous function with alarm, multi-load device can be connected, as uninterrupted power supply distributor.
Another object of the present invention is to provide a kind of uninterrupted power supply distributor of modular, have power supply concentrate with Management is distinguished, wiring is saved, the advantage of wiring simplicity is widely used electrical power distribution apparatus.
Previously described in order to overcome the problems, such as, the utility model proposes one kind not to power off dual DC power supply distributor, mainly The main power source power supply unit and reserve source of electrical power supply device of two groups of DC power supplies are provided, sustainable stable power-supplying distributes to multiple groups load dress It sets comprising: external power supply terminals side, face terminals side, relay, connector;Wherein the external power supply terminals side is negative with this The multiple groups terminal hole that terminals side is equipped with different colours expression face is carried, divides into positive electricity with the terminal of red, black, green respectively Electrically, which includes several groups terminal hole, can connect multiple groups load device, this is external for source, negative supply and ground connection Power supply terminal side be equipped with two groups of terminal holes, be separately connected main power source power supply unit and reserve source of electrical power supply device and respectively with the relay Device is electrically connected, and between each group load device and power circuit, is separately connected fuse holder and LED power indicator light, To ensure power nonoverload and other circuit regular supply power supplys, and it can also be connected by the connector and electrically connect external monitoring Device, so that the conductive signal of power supply and each power circuit to the external power supply terminals side and the face terminals side is supervised Control, synchronous recording issue warning.
The terminal hole in above-mentioned external power supply terminals side and the face terminals side is spring-piece type terminal hole, connection type To be inserted directly into spring-piece type terminal hole with regard to achievable wiring, completely without using bottle opener.
The terminal hole of above-mentioned the external power supply terminals side and the face terminals side is indicated with red positive electrical representation face respectively The terminal hole grafting positive supply, black negative electricity indicate that face indicates the terminal hole grafting negative supply, and green ground connection expression face indicates should Terminal hole is ground connection, in order to which power supply area is in charge of reason.
The fuse holder and a LED that two groups of terminal holes in above-mentioned external power supply terminals side are electrical connected with it respectively Power supply indicator corresponds.
The fuse holder and LED electricity that every group of terminal hole on above-mentioned face terminals side is also electrical connected with it respectively Source indicator light corresponds.
It is installed with fuse on the above-mentioned fuse holder, which is plugged on the fuse holder with pin, when one When current overload occurs for the power circuit on group load device, the fuse holder of connection will do it blocking power supply, it is ensured that other Load device regular supply power supply.
Above-mentioned connector is winding displacement toggle switch (IDC 20PIN toggle switch), to connect external monitor, transmits main electricity The status command signal of source power supply unit, reserve source of electrical power supply device and fuse holder, just in case occurring to have a power failure or when fuse escape, outside this Monitor can issue warning cresset by connection warning lamp.
The utility model offer does not power off using function, and technical principle is: the external power supply terminals side is separately connected two Two groups of DC power supplies are made the automatic switchover of circuit by the relay, and at least by group DC power supply One group of DC power supply supplies power to the face terminals side, to obtain the functional effect not powered off.The utility model is notifying In extraneous function, other than connecting external monitor with the connector, also offer LED power indicator light is with bright light/turning off the light indicates It is powered, off-position.It, can be on the spot by LED power indicator light when any of the above-described group of LED power indicator light turns off the light situation Instruction know service condition, in this way, can accelerate debugging and upkeep operation efficiency.
Detailed description of the invention
Fig. 1 is the structure and its fuse installing schematic diagram of one preferred embodiment of the utility model.
Fig. 2 is the main power source power supply unit operation schematic diagram of one preferred embodiment of the utility model.
Fig. 3 is the reserve source of electrical power supply device operation schematic diagram of one preferred embodiment of the utility model.
Description of symbols
Dual DC power supply distributor 1 is not powered off
External power supply terminals side 2
Positive supply distribution area 20
Red positive electrical representation face 20A, 30A
Negative supply distribution area 21
Black negative electricity indicates face 21A, 31A
Power ground distribution area 22
Green ground connection expression face 22A, 32A
Face terminals side 3
Load positive electricity distribution area 30
Terminal hole 301
Load negative electricity distribution area 31
Terminal hole 311
Carrying ground distribution area 32
Terminal hole 321
Fuse holder 4
Fuse 40
LED power indicator light 5
Resistance 50
Relay 6
Connector 7
Load device 8
Main power source power supply unit 81
Reserve source of electrical power supply device 80
External monitor 9
Warning lamp 90.
Specific embodiment
It please refers to Fig.1 to Fig.3, does not power off dual DC power supply distributor for one kind of one preferred embodiment of the utility model Structural schematic diagram;
This does not power off dual DC power supply distributor 1
External power supply terminals side 2: two groups of terminals are provided for input, upper end terminal is main power supply unit 81 and lower end end Son is reserve source of electrical power supply device 80 (highly distinguish), and positive supply is red terminal, and negative supply is black terminal, and it is green for being grounded Color terminal;
Face terminals side 3: six groups of terminals are provided, each group of terminal can be red terminal with a positive supply, negative supply is Black terminal is green terminal with ground connection;
Fuse holder 4: eight groups of fuse holder protection power sources (main power source power supply units one, reserve source of electrical power supply device one are provided A and face terminals side six), the main power source power supply unit 81, the reserve source of electrical power supply device 80 and the load end are connected with protection The power supply power supply nonoverload that sub- side 3 powers, the fuse holder 4 are the insurance for protecting the maximum current in each channel to be no more than fuse Electric current;
LED power indicator light 5: eight groups of LED power indicator lights are provided and show power supply (main power source power supply unit one, standby electricity Source power supply unit one, the channel power circuit six with load device) whether power;
Relay 6: for switching between main power source power supply unit 81, reserve source of electrical power supply device 80, when which acts, It is actively switched to the power supply of main power source power supply unit 81 or is powered by reserve source of electrical power supply device 80;
Connector 7: for IDC 20PIN toggle switch, to connect external monitor, it is main transmit main power source power supply unit 81, The status command signal of reserve source of electrical power supply device 80 and fuse holder 4, it is possible to provide external alarm message is used.
In a preferred embodiment, this does not power off dual DC power supply distributor 1, mainly provides the main electricity of two groups of DC power supplies Source power supply unit 81 and reserve source of electrical power supply device 80, sustainable stable power-supplying distribute to multiple groups load device, mainly include: outer Connect power supply terminal side 2, face terminals side 3, relay 6, connector 7;Wherein 2 side of external power supply terminal and the face terminals side 3, which are equipped with different colours, indicates the multiple groups terminal hole in face, divides into positive supply, negative supply with the terminal of red, black, green respectively And ground connection is electrically, which includes several groups terminal hole, can connect multiple groups load device 8, the external power supply terminals side 2 are equipped with two groups of terminal holes, be separately connected main power source power supply unit 81 and reserve source of electrical power supply device 80 and respectively with 6 electricity of the relay Property is connected, and between each group load device and power circuit, is separately connected fuse holder 4 and LED power indicator light 5, with Ensure power nonoverload and other circuit regular supply power supplys, and is also connected by the connector 7 and be electrically connected external monitor 9, so that the conductive signal of power supply and each power circuit to the external power supply terminals side 2 and the face terminals side 3 is supervised Control, synchronous recording issue warning.
The terminal hole in above-mentioned external power supply terminals side and the face terminals side is spring-piece type terminal hole, connection type To be inserted directly into spring-piece type terminal hole with regard to achievable wiring, completely without using bottle opener.Every group of terminal hole is with respect to electrotropism phase It is connected in the connector 7, pass through the connector 7 connection and electrically connects external monitor 9, wherein 7 two sides of connector have hook, The external monitor 9 is connected with a signal wiring with the connector 7, which is with online with the connector 7 It monitors, the electronic computation device of synchronous recording information capability, can be the electronic devices such as computer, program-controlled device.In addition this is outer Portion's monitor 9 can also connect a warning lamp 90 and issue warning cresset, just in case when power failure or fuse escape occurs, it should by connection Warning lamp 90 issues warning cresset.
The external power supply terminals side 2 and the face terminals side 3, which are equipped with different colours, indicates that the terminal hole in face, the terminal hole are Spring-piece type terminal, the external power supply terminals side 2 include upper and lower two groups of terminal holes, indicate that face differentiation electrically has positive supply to match with color Line area 20, negative supply distribution area 21, power ground distribution area 22, about 2 two groups of terminal holes of the external power supply terminals side, respectively with The relay 6 is electrically connected, and provides the main power source power supply unit 81 and the reserve source of electrical power supply device 80 of connection DC power supply.
The face terminals side 3 includes the several groups terminal hole of connection load, and being distinguished with color terminal electrically has load positive electricity Distribution area 30, load negative electricity distribution area 31, carrying ground distribution area 32, every in the present embodiment group of face terminals side 3 is also wrapped Six terminal holes are included, sequentially its position arranges the several groups load that connects one to one, and can connect six groups of loads;The external power supply end Fuse holder 4 and the LED power that every group of terminal hole on sub- side 2 and face terminals side 3 is also electrical connected with it respectively refer to Show that lamp 5 corresponds, wherein the fuse holder 4 provides 40 pin grafting of fuse, which is electrically connected one A resistance 50, the collocation as circuit electrical property use.
In a preferred embodiment, each terminal of the external power supply terminals side 2 and the face terminals side 3 distinguishes mode, is Indicate that this terminal hole grafting positive supply, black negative electricity indicate that face 21A, 31A indicate terminal hole with red positive electrical representation face 20A, 30A Grafting negative supply, green ground connection expression face 22A, 32A indicate that terminal hole is ground connection, in order to which power supply area is in charge of reason.
The utility model is the electric power source distribution device of industrial controlling, has eight groups of fuse holders 4, the first two groups external electricity Source terminal side 2 uses (be divided into upper end terminal is main power supply unit 81 and lower end terminal is reserve source of electrical power supply device 80), and rear six Group is that the face terminals side 3 uses, and can divide six electricity consumption regions altogether.It, can be excellent when power circuit is using the problem that short circuit occurs Current overload blocking first is carried out with fuse circuit to problematic load device, to ensure power supply nonoverload and other circuits just Often supply power supply.Involution formula fuse can be used in the fuse that various specifications can be installed on the fuse holder 4, when involution formula is protected Dangerous silk can reply fusing function by pressing involution formula fuse, save replacement fuse more than after fuse electric current.For DC power supply can take the DC power supply with DC5V, DC12V, DC24V, and the fuse of corresponding installing is 2A, can also take use The DC power supply of DC48V, the fuse of corresponding installing are 1A.
The utility model further provides for not powering off the function extraneous using function and notice.The wherein not skill of power down function Art principle: the external power supply terminals side 2 is separately connected two groups of DC power supplies, which can be obtained active and standby With system dual power supply source, by the relay two groups of DC power supplies are made with the automatic switchover of circuit, and at least One group of DC power supply supplies power to the face terminals side 3, to obtain the functional effect not powered off.
Fig. 2 and Fig. 3 are please referred to, in the attached drawing of a preferred embodiment, which is separately connected the main electricity Source power supply unit 81 and the reserve source of electrical power supply device 80, the two is electrically connected with the relay 6, first by the main power source power supply unit 81 are powered at the face terminals side 3, and it is backup power source which, which treats as,.When the main power source power supply unit 81 occurs When the case where not powering, which switches to the reserve source of electrical power supply device 80 by the main power source power supply unit 81 automatically immediately, about Circuit conversion is completed with 0.1sec, the load device supplied electricity on the face terminals side 3 connects power supply;The face terminals side 3 connects The terminal hole for being connected to load device is loaded with powered/not powered information, and when power is off, which is high low potential transition signal, Pass through the connector 7 connection and electrically connect the external monitor 9, every group of power supply power supply is monitored, synchronous recording or sending Warning, the synchronous recording information, connects the warning lamp 90 and issues warning cresset, realize the extraneous function of notice, issue police whereby It reports real-time reception and registration problem and notifies personnel.
The utility model would know that outside use state can also there is LED power indicator light except through online external monitor 9 The function of instruction.If the main power source power supply unit 81 breaks down under normal circumstances, with the instruction of corresponding LED power indicator light It is powered, off-position.
In Fig. 2, the LED power indicator light 5 of the 1st position of left side, the electrical phase of the fuse 40 difference thereunder It is used corresponding to the main power source power supply unit 81, the LED power indicator light 5 of the 2nd position of left side and the fuse thereunder 40 electrically correspond to the reserve source of electrical power supply device 80 use respectively;When the main power source power supply unit 81 is effective power supply state, 5 bright light of LED power indicator light of the 1st position of left side.
In Fig. 3, when the main power source power supply unit 81 is invalid power supply state, the relay 6 is immediately automatically by the main electricity Source power supply unit 81 switches to the reserve source of electrical power supply device 80 and supplies electricity to load device, and the LED power of the 1st position of left side refers at this time Show that lamp 5 is turned off the light, 5 bright light of LED power indicator light of the 2nd position of left side.
The utility model can connect multiple load devices in the face terminals side 3.In embodiment, in the face terminals side 3 Load positive electricity distribution area 30, load negative electricity distribution area 31, carrying ground distribution area 32, respectively with terminal hole 301,311,321 Connect load device 8;In Fig. 3, working condition between power supply and multiple load devices, six arranged since the 3rd position should LED power indicator light 5 is to correspond to be electrically connected six groups of load devices, when the load device 8 and the main power source power supply unit 81 After conducting, corresponding load device 8 of the LED power indicator light 5 of the 3rd position of left-hand digit, with bright light/turning off the light clearly indicates it It is powered, off-position, the fuse 40 thereunder is the use of the corresponding load device 8.
When any of the above-described group of LED power indicator light 5 turns off the light situation, having can be prompted at two, and one prompt is that this is outer Portion's monitor 9 notifies the warning lamp 90, issues warning cresset in real time, another prompt is can be by LED power indicator light on the spot Instruction knows DC power supply and connects the service condition of load device, in this way, can accelerate to debug and safeguard The efficiency of operation.
By the implementation situation described above not powered off with informing function, the utility model also has many advantages in use With its benefit:
1. power supply is managed concentratedly, wiring is saved, facilitates wiring using spring-piece type terminal;
2. modular is easy partition management, including system power supply, load power source, inputs and use power supply, output power supply etc. is matched Electricity;
3. using color management, range estimation can know that the sources such as power supply, signal, ground connection are closed, readily identified and plug operation;
4. every group of load device has respective fuse holder management, six electricity consumption regions can be divided into;
5. LED power indicator light clearly indicates its power-off or is powered.
In addition, the utility model can also be further as the amplification of COM point;It can also take with DC5V~48V DC power supply, extensively It is general to be used in a variety of manufacturing fields aspects, to promote the practicality and utility value.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts Every other embodiment, fall within the protection scope of the utility model.

Claims (8)

1. one kind do not power off dual DC power supply distributor characterized by comprising external power supply terminals side, face terminals side, Relay, connector, the external power supply terminals side and the face terminals side, which are equipped with different colours, indicates the multiple groups terminal hole in face, should Face terminals side includes several groups terminal hole, can connect multiple groups load device, there is two groups of terminals in the external power supply terminals side Hole is separately connected two groups of DC power supplies, and is electrically connected respectively with the relay, which can be two group to this DC power supply makees the automatic switchover of circuit, so that at least one group DC power supply supplies power to the face terminals Side, to obtain the effect not powered off;Every group of terminal hole connects by the connector and is electrically connected external monitor, so as to right The power supply of the external power supply terminals side and the face terminals side and each power circuit are monitored, synchronous recording or sending are warned Show.
2. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that the external power supply terminals side and The terminal hole of the face terminals side is spring-piece type terminal.
3. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that the external power supply terminals side and The terminal hole of the face terminals side indicates that the terminal hole grafting positive supply, black negative electricity indicate with red positive electrical representation face respectively Face indicates the terminal hole grafting negative supply, and green ground connection expression face indicates the terminal hole for ground connection, in order to which power supply area is in charge of reason.
4. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that in the external power supply terminals side The fuse holder that is also electrical connected respectively with it of every group of terminal hole and a LED power indicator light correspond.
5. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that every on the face terminals side The fuse holder and a LED power indicator light that group terminal hole is also electrical connected with it respectively correspond.
6. not powering off dual DC power supply distributor as claimed in claim 5, which is characterized in that the fuse holder provides insurance Silk pin grafting, when current overload occurs for the power circuit on one group of load device, the fuse holder of connection will do it resistance Cut-off electricity, to ensure power nonoverload and other circuit regular supply power supplys.
7. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that the connector is winding displacement ox horn Seat, to connect the external monitor, the status command signal of transmission main power source power supply unit, reserve source of electrical power supply device and fuse holder.
8. not powering off dual DC power supply distributor as described in claim 1, which is characterized in that the external monitor can also A warning lamp is connected, the warning lamp is for issuing warning cresset.
CN201821654814.7U 2018-10-12 2018-10-12 One kind not powering off dual DC power supply distributor Expired - Fee Related CN209134131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821654814.7U CN209134131U (en) 2018-10-12 2018-10-12 One kind not powering off dual DC power supply distributor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821654814.7U CN209134131U (en) 2018-10-12 2018-10-12 One kind not powering off dual DC power supply distributor

Publications (1)

Publication Number Publication Date
CN209134131U true CN209134131U (en) 2019-07-19

Family

ID=67231506

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821654814.7U Expired - Fee Related CN209134131U (en) 2018-10-12 2018-10-12 One kind not powering off dual DC power supply distributor

Country Status (1)

Country Link
CN (1) CN209134131U (en)

Similar Documents

Publication Publication Date Title
CN104192153B (en) track train controller
CN207542781U (en) A kind of power switching arrangement
CN209134131U (en) One kind not powering off dual DC power supply distributor
CN210838668U (en) Transformer substation equipment for increasing through-current capacity of low-voltage side of main transformer
CN108318787A (en) A kind of DC bus multistage paired running switching method and system
CN218039046U (en) Double AC voltage switching relay device
CN206364596U (en) High voltage power distributing cabinet video identification monitoring system
TWM572595U (en) Uninterruptible dual DC power distributor
CN211744141U (en) Internet energy gateway circuit breaker management system
CN209134043U (en) Electric power source distribution device
CN202077226U (en) Electric power carrier wave lighting control device
TWI622248B (en) Power Distribution Unit Capable of Automatically Switching Power Source
CN210350493U (en) Intelligent tunnel distribution box with disaster prevention monitoring or illumination monitoring function
CN218648624U (en) Circuit monitoring protector
CN219497160U (en) Electrical fire monitoring and management system for cabinet of communication machine room
CN211428916U (en) Intelligent power supply distributor with bypass power supply
CN203522890U (en) Power unit for multi-channel video surveillance equipment
CN218497116U (en) Cabinet PDU state indicating device and novel electric cabinet
CN219304714U (en) Power supply system and power supply device
CN213124301U (en) Simplified circuit and device of integrated relay terminal board
CN207732503U (en) A kind of power supply unit and system
CN220934853U (en) DC power distribution unit and DC switch cabinet thereof
CN213461242U (en) Intelligent power distribution terminal system
CN207731460U (en) A kind of antenna block signal is from insurance system
CN215896976U (en) Take time delay type power distribution module

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190719

Termination date: 20191012