CN208109924U - A kind of power equipment alarming device - Google Patents

A kind of power equipment alarming device Download PDF

Info

Publication number
CN208109924U
CN208109924U CN201820636656.6U CN201820636656U CN208109924U CN 208109924 U CN208109924 U CN 208109924U CN 201820636656 U CN201820636656 U CN 201820636656U CN 208109924 U CN208109924 U CN 208109924U
Authority
CN
China
Prior art keywords
switch
conductor
main body
mounting rack
iron core
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
CN201820636656.6U
Other languages
Chinese (zh)
Inventor
王德龙
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.)
Nanjing Beiyang Electric Power Consulting Co Ltd
Original Assignee
Nanjing Beiyang Electric Power Consulting Co 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 Nanjing Beiyang Electric Power Consulting Co Ltd filed Critical Nanjing Beiyang Electric Power Consulting Co Ltd
Priority to CN201820636656.6U priority Critical patent/CN208109924U/en
Application granted granted Critical
Publication of CN208109924U publication Critical patent/CN208109924U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

The utility model discloses a kind of power equipment alarming devices, including protection cap, the lower end of the protection cap is fixedly installed with warning main body, the front end of the warning main body is successively fixedly installed with the first warning lamp, second warning lamp, electric bell pan, first high temperature warning lamp, second high temperature warning lamp and main switch, the inside of the warning main body is equipped with mounting rack, the side inner cavity of the mounting rack is equipped with scrimp hermetic bag, the fixed interlocking in the side inner cavity front end of the mounting rack has switch main body, the mounting rack is fixedly installed with switch away from the side inner cavity front end of scrimp hermetic bag, the outboard end of the switch is fixedly installed with the second insulated spring, the end of second insulated spring is fixedly connected with the second iron core, the outside fixation of second iron core is wound with the second coil, the positive rear side of second iron core is equipped with the first iron core.The utility model can warn excess electric current and the high temperature warning of power equipment, while possess power-off protection, better meet and use needs.

Description

A kind of power equipment alarming device
Technical field
The utility model relates to electrical equipment technical field, specially a kind of power equipment alarming device.
Background technique
Power equipment mainly includes generating equipment and power supply unit two major classes, and generating equipment is mainly station boiler, steam Turbine, gas turbine, the hydraulic turbine, generator, transformer etc., power supply unit be mainly various voltage class transmission line of electricity, Mutual inductor, contactor etc., but most power equipment presence cannot cannot warn exceeded electric current and be unable to asking for high temperature warning Topic, so being badly in need of wanting a kind of device for being able to solve the above problem.
Utility model content
The purpose of this utility model is to provide a kind of power equipment alarming devices, to solve to propose in above-mentioned background technique The problem of.
To achieve the above object, the utility model provides the following technical solutions:A kind of power equipment alarming device, including protect Protecting cover, the lower end of the protection cap are fixedly installed with warning main body, and the front end of the warning main body is successively fixedly installed with first Warning lamp, the second warning lamp, electric bell pan, the first high temperature warning lamp, the second high temperature warning lamp and main switch, the warning main body Inside is equipped with mounting rack, and the side inner cavity of the mounting rack is equipped with scrimp hermetic bag, and the side inner cavity front end of the mounting rack is solid Fixed interlocking has switch main body, and the mounting rack is fixedly installed with switch away from the side inner cavity front end of scrimp hermetic bag, described to open The outboard end of pass is fixedly installed with the second insulated spring, and the end of second insulated spring is fixedly connected with the second iron core, institute State the second iron core outside it is fixed is wound with the second coil, the positive rear side of second iron core is equipped with the first iron core, described first The outboard end fixation of iron core is wound with the first money circle, and the rear end of first iron core is fixedly connected with the first insulated spring, described The front end folding of scrimp hermetic bag is equipped with cut-off switch, is equipped with isolation baffle plate, the isolation baffle plate inside the switch main body Front side end in the middle part of be fixedly connected with the first conductor plate, the lower end of first conductor plate is fixedly installed with the second conductor plate, institute The inner end for stating the first conductor plate and the second conductor plate is fixedly installed with insulation slide bar, and peace is slided in the upside of the insulation slide bar Equipped with the first conductor, the insulation slide bar is slidably fitted with the second conductor away from the lower end of the first conductor, second conductor and The outboard end of first conductor is slidably fitted with insulator foot, and the front side end of the isolation baffle plate is solid away from the outside of the first conductor plate Surely it is connected with switch insulation spring.
Preferably, the cut-off switch is mounted on the lower end of mounting rack side inner cavity, and cut-off switch perforation is connected to peace The internal structure of the front end shelved, the mounting rack is identical as switch main body, and does not install switch insulation spring in mounting rack, institute It states mounting rack and is mounted on the front end of scrimp hermetic bag away from the folding of one end of isolation baffle plate, the be equipped with inside the cut-off switch One conductor plate and the first conductor and general supply are electrically contacted, and the main switch and general supply are electrically contacted.
Preferably, the isolation baffle plate rear end folding being equipped with inside the switch main body is mounted on the lower end of scrimp hermetic bag, The first conductor plate and the first conductor and the first high temperature warning lamp being equipped with inside the switch main body are electrically contacted, the switch master The second conductor and the second conductor plate and the second high temperature warning lamp and electric bell pan that internal portion is equipped with electrically are contacted.
Preferably, the internal structure of the switch is identical as switch main body, and the rear end folding of isolation baffle plate is mounted on the The front end of two iron cores, the first conductor plate and the first conductor and the first warning lamp that the switch internal is equipped with electrically are contacted, described The second conductor plate and the second conductor of switch internal and the second warning lamp and electric bell pan are electrically contacted.
Preferably, the rear end of first insulated spring is fixedly connected on the side inner cavity that mounting rack deviates from scrimp hermetic bag Rear end, the first money circle and the second coil are slidably mounted on the inner cavity that mounting rack deviates from scrimp hermetic bag side.
Preferably, the rear end of the scrimp hermetic bag is fixedly mounted on the rear end of mounting rack side inner cavity.
Preferably, the first money circle is identical as the winding direction of the second coil, and the tail circuit of the first money circle connects Head and the cathode or zero curve of general supply are electrically connected, the front-end circuit connector of the first money circle and the front-end circuit of the second coil Connector is electrical connected, and the tail circuit connector of the mounting rack and the anode or firewire of general supply are electrical connected.
Preferably, the first money circle, the second coil, cut-off switch and main switch and power equipment are electrically contacted, and with Main power source is electrically contacted, and the switch, switch main body and cut-off switch and general supply electrically and connect.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the present apparatus is by being equipped with the second coil, the second iron core, the first iron core and the first money circle, and utilizes its electrical relationship Make to generate repulsion between the second coil and the second iron core and the first iron core and the first money circle, utilizes the big of electric current used in power equipment Small variation changes the size of power, so that the first iron core is generated variation at a distance from the second iron core, using above-mentioned principle, when electric current mistake When big, the level-one of touch switch switchs and lights the first warning lamp, and when electric current is more than setting electric current, the second level of touch switch is opened It closes, and lights the second warning lamp, while electric bell pan issues the sound, police when reaching excessive to electric current or exceeded using above-mentioned principle It is shown as using, solves the problems, such as that most power equipments cannot cannot warn exceeded electric current.
2, by installation scrimp hermetic bag, using power equipment generate heat and expand with heat and contract with cold and scrimp hermetic bag Folding characteristic makes scrimp hermetic bag anterior-posterior length in different temperatures have significant change, sets electric power using above-mentioned principle When standby overheat, scrimp hermetic bag squeezes switch main body, and the level-one of touch switch main body switchs and light the first high temperature warning lamp, when The secondary switch of switch main body while touch switch main body is squeezed when temperature exceeding standard again and lights the second high temperature warning lamp, simultaneously Electric bell pan sends out the sound same, and cut-off switch power-off protection is touched when temperature severely exceeds, is reached using above-mentioned principle and is set to electric power The effect of standby temperature warning reaches the effect of protection power equipment simultaneously, solves most existing power equipments and is unable to high temperature warning Problem.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram of the utility model;
Fig. 2 is the warning agent structure schematic diagram of the utility model;
Fig. 3 is the switch main body structural schematic diagram of the utility model.
In figure:1- protection cap, the second warning lamp of 2-, the first high temperature of 3- warning lamp, 4- main switch, the warning of the second high temperature of 5- Lamp, 6- electric bell pan, the first warning lamp of 7-, 8- warning main body, 9- scrimp hermetic bag, 10- mounting rack, 11- cut-off switch, 12- are opened Close main body, 13- switch, the second insulated spring of 14-, the second coil of 15-, the second iron core of 16-, the first iron core of 17-, the first money of 18- Circle, the first insulated spring of 19-, 20- isolation baffle plate, the first conductor plate of 21-, 22- switch insulation spring, 23- insulation slide bar, 24- First conductor, 25- insulator foot, the second conductor of 26-, the second conductor plate of 27-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, a kind of embodiment provided by the utility model:A kind of power equipment alarming device, including protection Lid 1, the lower end of protection cap 1 are fixedly installed with warning main body 8, and the front end of warning main body 8 is successively fixedly installed with the first warning lamp 7, the second warning lamp 2, electric bell pan 6, the first high temperature warning lamp 3, the second high temperature warning lamp 5 and main switch 4 warn the interior of main body 8 Portion is equipped with mounting rack 10, and the side inner cavity of mounting rack 10 is equipped with scrimp hermetic bag 9, and the side inner cavity front end fixation of mounting rack 10 is embedding It is connected to switch main body 12, mounting rack 10 is fixedly installed with switch 13 away from the side inner cavity front end of scrimp hermetic bag 9, switch 13 Outboard end is fixedly installed with the second insulated spring 14, and the end of the second insulated spring 14 is fixedly connected with the second iron core 16, and second The outside of iron core 16 is fixed to be wound with the second coil 15, and the positive rear side of the second iron core 16 is equipped with the first iron core 17, the first iron core 17 Outboard end fixation be wound with the first money circle 18, the rear end of the first iron core 17 is fixedly connected with the first insulated spring 19, and scrimp is close The front end folding of envelope 9 is equipped with cut-off switch 11, is equipped with isolation baffle plate 20, the front side of isolation baffle plate 20 inside switch main body 12 End middle part is fixedly connected with the first conductor plate 21, and the lower end of the first conductor plate 21 is fixedly installed with the second conductor plate 27, and first leads The inner end of body plate 21 and the second conductor plate 27 is fixedly installed with insulation slide bar 23, and the upside of insulation slide bar 23 is slidably fitted with First conductor 24, insulation slide bar 23 are slidably fitted with the second conductor 26 away from the lower end of the first conductor 24, the second conductor 26 and the The outboard end of one conductor 24 is slidably fitted with insulator foot 25, and the front side end of isolation baffle plate 20 deviates from the outside of the first conductor plate 21 It is fixedly connected with switch insulation spring 22, by installing scrimp hermetic bag 9, the heat and heat expansion generated using power equipment is cold The folding characteristic of contracting and scrimp hermetic bag 9, makes the anterior-posterior length in different temperatures of scrimp hermetic bag 9 have significant change, benefit When overheating power equipment with above-mentioned principle, scrimp hermetic bag 9 squeezes switch main body 12, the level-one switch of touch switch main body 12 And the first high temperature warning lamp 3 is lighted, squeeze the second level of switch main body 12 while touch switch main body 12 again when temperature exceeding standard Switch and light the second high temperature warning lamp 5, while electric bell pan 6 sends out the sound same, and cut-off switch 11 is touched when temperature severely exceeds Power-off protection, the effect of having the function that power equipment temperature warning using above-mentioned principle while reaching protection power equipment.
Cut-off switch 11 is mounted on the lower end of 10 side inner cavity of mounting rack, and the perforation of cut-off switch 11 is connected to mounting rack 10 Front end, the internal structure of mounting rack 10 is identical as switch main body 12, and does not install switch insulation spring 22 in mounting rack 10, peace It shelves 10 and is mounted on the front ends of scrimp hermetic bag 9 away from the folding of one end of isolation baffle plate 20, the be equipped with inside cut-off switch 11 One conductor plate 21 and the first conductor 24 are electrically contacted with general supply, and main switch 4 and general supply are electrically contacted, inside switch main body 12 20 rear end of the isolation baffle plate folding being equipped with is mounted on the lower end of scrimp hermetic bag 9, the first conductor being equipped with inside switch main body 12 The electrical series winding of plate 21 and the first conductor 24 and the first high temperature warning lamp 3, the second conductor 26 being equipped with inside switch main body 12 and the Two conductor plates 27 and the second high temperature warning lamp 5 and electric bell pan 6 are electrically contacted, internal structure and 12 phase of switch main body of switch 13 Together, and the rear end of isolation baffle plate 20 opens and closes the front end for being mounted on the second iron core 16, the first conductor plate 21 that 13 inside of switch is equipped with It electrically contacts with the first conductor 24 and the first warning lamp 7, the second conductor plate 27 and the second conductor 26 and second inside switch 13 Electrically series winding, the rear end of the first insulated spring 19 are fixedly connected on mounting rack 10 away from scrimp hermetic bag for warning lamp 2 and electric bell pan 6 The rear end of 9 side inner cavity, the first money circle 18 and the second coil 15 are slidably mounted on mounting rack 10 away from 9 side of scrimp hermetic bag Inner cavity, the rear end of scrimp hermetic bag 9 is fixedly mounted on the rear end of 10 side inner cavity of mounting rack, the first money circle 18 and the second coil 15 winding direction is identical, and the tail circuit connector of the first money circle 18 and the cathode or zero curve of general supply are electrically connected, the first money Circle 18 front-end circuit connector and the front-end circuit connector of the second coil 15 be electrical connected, the tail circuit connector of mounting rack 10 and The anode or firewire of general supply are electrical connected, and the first money circle 18, the second coil 15, cut-off switch 11 and main switch 4 are set with electric power It contacts for electrical, and electrically contacts with main power source, switch 13, switch main body 12 and cut-off switch 11 are electrical with general supply and connect, The present apparatus is made by being equipped with the second coil 15, the second iron core 16, the first iron core 17 and the first money circle 18 using its electrical relationship Repulsion is generated between second coil 15 and the second iron core 16 and the first iron core 17 and the first money circle 18, utilizes the electricity consumption of power equipment institute The size variation of stream changes the size of power, so that the first iron core 17 is generated variation at a distance from the second iron core 16, utilizes above-mentioned original Reason, when current is excessive, the level-one of touch switch 13 switchs and lights the first warning lamp 7, touches when electric current is more than setting electric current The secondary switch of dynamic switch 13, and the second warning lamp 2 is lighted, while electric bell pan 6 issues the sound, reaches using above-mentioned principle to electricity Warning function when flowing through big or exceeded.
Working principle:The present apparatus by be equipped with the second coil 15, the second iron core 16, the first iron core 17 and the first money circle 18, And make to generate repulsion between the second coil 15 and the second iron core 16 and the first iron core 17 and the first money circle 18 using its electrical relationship, Using the size variation of electric current used in power equipment, change the size of power, produces the first iron core 17 at a distance from the second iron core 16 Changing, using above-mentioned principle, when current is excessive, the level-one of touch switch 13 switchs and lights the first warning lamp 7, works as electric current The secondary switch of touch switch 13 when more than setting electric current, and the second warning lamp 2 is lighted, while electric bell pan 6 issues the sound, it utilizes Warning function when above-mentioned principle reaches excessive to electric current or exceeded is generated by installing scrimp hermetic bag 9 using power equipment Heat and the folding characteristic that expands with heat and contract with cold with scrimp hermetic bag 9, keep the front and back in different temperatures of scrimp hermetic bag 9 long Degree has significant change, and when overheating power equipment using above-mentioned principle, scrimp hermetic bag 9 squeezes switch main body 12, touch switch The level-one of main body 12 switchs and lights the first high temperature warning lamp 3, squeeze switch main body 12 again when temperature exceeding standard while touching The secondary switch of switch main body 12 simultaneously lights the second high temperature warning lamp 5, while electric bell pan 6 sends out the sound same, when temperature severely exceeds When touch 11 power-off protection of cut-off switch, have the function that reach power equipment temperature warning simultaneously protection using above-mentioned principle electric The effect of power equipment.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of power equipment alarming device, including protection cap (1), it is characterised in that:The fixed peace in the lower end of the protection cap (1) Equipped with warning main body (8), the front end of warning main body (8) is successively fixedly installed with the first warning lamp (7), the second warning lamp (2), electric bell pan (6), the first high temperature warning lamp (3), the second high temperature warning lamp (5) and main switch (4), the warning main body (8) Inside be equipped with mounting rack (10), the side inner cavity of the mounting rack (10) is equipped with scrimp hermetic bag (9), the mounting rack (10) The fixed interlocking in side inner cavity front end have switch main body (12), the mounting rack (10) is in the side of scrimp hermetic bag (9) Chamber front end is fixedly installed with switch (13), and the outboard end of the switch (13) is fixedly installed with the second insulated spring (14), described The end of second insulated spring (14) is fixedly connected with the second iron core (16), and the outside fixation of second iron core (16) is wound with The positive rear side of second coil (15), second iron core (16) is equipped with the first iron core (17), the outside of first iron core (17) End fixation is wound with the first money circle (18), and the rear end of first iron core (17) is fixedly connected with the first insulated spring (19), institute The front end folding for stating scrimp hermetic bag (9) is equipped with cut-off switch (11), and isolation baffle plate is equipped with inside the switch main body (12) (20), it is fixedly connected with the first conductor plate (21) in the middle part of the front side end of the isolation baffle plate (20), first conductor plate (21) Lower end be fixedly installed with the second conductor plate (27), the inner end of first conductor plate (21) and the second conductor plate (27) is fixed Insulation slide bar (23) is installed, the upside of insulation slide bar (23) is slidably fitted with the first conductor (24), and the insulation is slided Bar (23) is slidably fitted with the second conductor (26) away from the lower end of the first conductor (24), second conductor (26) and the first conductor (24) outboard end is slidably fitted with insulator foot (25), and the front side end of the isolation baffle plate (20) deviates from the first conductor plate (21) Outside be fixedly connected with switch insulation spring (22).
2. a kind of power equipment alarming device according to claim 1, it is characterised in that:Cut-off switch (11) installation In the lower end of mounting rack (10) side inner cavity, and cut-off switch (11) perforation is connected to the front end of mounting rack (10), the installation The internal structure of frame (10) is identical as switch main body (12), and does not install switch insulation spring (22) in mounting rack (10), described Mounting rack (10) is mounted on the front end of scrimp hermetic bag (9), the cut-off switch away from one end folding of isolation baffle plate (20) (11) internal the first conductor plate (21) being equipped with and the first conductor (24) and general supply are electrically contacted, the main switch (4) with always Power supply is electrically contacted.
3. a kind of power equipment alarming device according to claim 1, it is characterised in that:The switch main body (12) is internal Isolation baffle plate (20) the rear end folding being equipped with is mounted on the lower end of scrimp hermetic bag (9), is equipped with inside the switch main body (12) The first conductor plate (21) and the first conductor (24) and the first high temperature warning lamp (3) electrically contact, in the switch main body (12) The second conductor (26) and the second conductor plate (27) and the second high temperature warning lamp (5) and electric bell pan (6) that portion is equipped with electrically are contacted.
4. a kind of power equipment alarming device according to claim 1, it is characterised in that:The internal junction of the switch (13) Structure is identical as switch main body (12), and the rear end folding of isolation baffle plate (20) is mounted on the front end of the second iron core (16), described to open It closes the first conductor plate (21) being equipped with inside (13) and the first conductor (24) and the first warning lamp (7) is electrically contacted, the switch (13) internal the second conductor plate (27) and the second conductor (26) and the second warning lamp (2) and electric bell pan (6) are electrically contacted.
5. a kind of power equipment alarming device according to claim 1, it is characterised in that:First insulated spring (19) Rear end be fixedly connected on mounting rack (10) away from scrimp hermetic bag (9) side inner cavity rear end, the first money circle (18) The inner cavity that mounting rack (10) deviate from scrimp hermetic bag (9) side is slidably mounted on the second coil (15).
6. a kind of power equipment alarming device according to claim 1, it is characterised in that:The scrimp hermetic bag (9) Rear end is fixedly mounted on the rear end of mounting rack (10) side inner cavity.
7. a kind of power equipment alarming device according to claim 1, it is characterised in that:The first money circle (18) and the The winding direction of two coil (15) is identical, the tail circuit connector of the first money circle (18) and cathode or the zero curve electricity of general supply Property connects, and the front-end circuit connector and the front-end circuit connector of the second coil (15) of the first money circle (18) are electrical connected, institute The anode or firewire of the tail circuit connector and general supply of stating mounting rack (10) are electrical connected.
8. a kind of power equipment alarming device described according to claim 1 or 2 or 3 or 4 or 7, it is characterised in that:Described first Money circle (18), the second coil (15), cut-off switch (11) and main switch (4) and power equipment are electrically contacted, and electric with main power source Property series winding, the switch (13), switch main body (12) and cut-off switch (11) and general supply are electrically and company.
CN201820636656.6U 2018-05-02 2018-05-02 A kind of power equipment alarming device Expired - Fee Related CN208109924U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820636656.6U CN208109924U (en) 2018-05-02 2018-05-02 A kind of power equipment alarming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820636656.6U CN208109924U (en) 2018-05-02 2018-05-02 A kind of power equipment alarming device

Publications (1)

Publication Number Publication Date
CN208109924U true CN208109924U (en) 2018-11-16

Family

ID=64115108

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820636656.6U Expired - Fee Related CN208109924U (en) 2018-05-02 2018-05-02 A kind of power equipment alarming device

Country Status (1)

Country Link
CN (1) CN208109924U (en)

Similar Documents

Publication Publication Date Title
CN208109924U (en) A kind of power equipment alarming device
CN204884874U (en) Condenser protection device
CN206099331U (en) Circuit board is with big through -flow power surge protection device
CN209626950U (en) A kind of intelligent Thermal Cutoffs
CN209071743U (en) A kind of nothing powers on the hot plugging device of sparking and power-off arcing
CN204376264U (en) A kind of switch cubicle and heat abstractor thereof
CN215377998U (en) Distribution box for lightning-arrest power communication
CN109004294A (en) A kind of lithium battery overtemperature protection system
CN104332833A (en) Electrical control high-tension switch cabinet
CN204230049U (en) With the intelligent switch capacitor of mechanical explosion mechanism
CN209561320U (en) A kind of card slot type breaker of plastic casing
CN203416152U (en) Quick discharging and indicating device for explosion-proof frequency converter for mines
CN103312127B (en) Quick discharging and indicating device for explosion-proof frequency converter for mines
CN207588282U (en) A kind of anticreep Intelligent comprehensive distribution box
CN203351226U (en) Current-carrying bus bar inside airtight chamber of gas insulation switch device and gas insulation switch device utilizing same current-carrying bus bar
CN205945049U (en) Non -maintaining electric pile source defend thunder equipment that fills
CN206412232U (en) Carry the electric capacity of pressure relief device
CN207425773U (en) High-tension fuse with two melts
CN221198513U (en) Wireless monitoring system of high-voltage nanosecond pulse component
CN205583698U (en) Reactive power compensation device
CN219107906U (en) Harmonic elimination mechanism for low-voltage power supply system
CN208353197U (en) A kind of switching high-frequency power of high efficiency and heat radiation
CN203967735U (en) A kind of electric capacitor circuit
CN213636769U (en) Intelligent electric power instrument with wireless communication module
CN208753251U (en) A kind of easily debugging self-mending fuse

Legal Events

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

Granted publication date: 20181116

Termination date: 20190502

CF01 Termination of patent right due to non-payment of annual fee