CN114268165B - Automatic switching device of online low-voltage frequency converter - Google Patents
Automatic switching device of online low-voltage frequency converter Download PDFInfo
- Publication number
- CN114268165B CN114268165B CN202111604649.0A CN202111604649A CN114268165B CN 114268165 B CN114268165 B CN 114268165B CN 202111604649 A CN202111604649 A CN 202111604649A CN 114268165 B CN114268165 B CN 114268165B
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- standby
- plug
- integrated
- main
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention belongs to the technical field of frequency conversion control of important equipment, in particular to an automatic switching device of an online low-voltage frequency converter, which comprises the following components: the machine body comprises a machine case, an indicator light and an alarm light which are arranged on the machine case, a control computer arranged on the side of the machine case and a placing frame arranged in the machine case. According to the invention, through the socket mechanism, the plug mechanism and the driving mechanism, the automatic control knob switch is used for selecting any frequency converter as the main frequency converter after faults, when the main frequency converter operates, the standby frequency converter switches to a hot standby state, when the main frequency converter system suddenly fails, the main frequency converter sends out fault signals to the standby frequency converter, and the standby frequency converter is automatically started and simultaneously sends out alarm prompts, so that the fault time is greatly shortened, the uncertainty of manual operation is reduced, and the control scheme is suitable for important places and is convenient to popularize and use.
Description
Technical Field
The invention relates to the technical field of frequency conversion control of important equipment, in particular to an automatic switching device of an online low-voltage frequency converter.
Background
Along with the increasing popularization of automatic production, the requirements on the continuity of production are also higher, and the application of the frequency converter is also wider, but in important places, once the frequency converter fails, production accidents, even safety accidents, are caused, and in this case, the online automatic switching mode of the low-voltage frequency converter is particularly important.
At present, in important places, a standby frequency conversion system is generally configured, but if the running frequency conversion system suddenly fails, the switching to the standby frequency conversion system also needs manual operation, a certain time is needed, and serious accidents are likely to be caused during the time.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows:
an on-line low voltage frequency converter automatic switching device, comprising: the device comprises a machine body, a socket mechanism, a plug mechanism and a driving mechanism, wherein the machine body comprises a machine case, an indicator lamp and an alarm lamp which are arranged on the machine case, a control computer arranged on the side of the machine case and a placing frame arranged in the machine case; wherein, a main frequency converter and a standby frequency converter are arranged on the placing frame; the socket mechanism is arranged in the chassis and comprises a mounting frame, an integrated socket, a standby contact, a folding contact, a diode, a push-type detection button, a main jack, a lifting block and a guide chute, wherein the mounting frame is mounted in the chassis, the integrated socket is mounted on the mounting frame, the standby contact is arranged in the middle of the integrated socket and is electrically connected with the standby frequency converter, the folding contact is arranged on the outer side of the standby contact, the diode is connected to the standby contact, the push-type detection button is arranged on the side of the standby contact, the main jack is arranged in the middle of the integrated socket and is electrically connected with the main frequency converter, the lifting block is arranged on the side of the main jack, and the guide chute is formed in the lifting block; the other side of the diode is connected with another group of standby frequency converter, the standby frequency converter is provided with another group of folding contact pieces, and the standby contact pieces are positioned on the input side of the diode; the plug mechanism is sleeved on the mounting frame and is inserted on the integrated socket, and comprises an integrated plug inserted in the integrated socket, an external contact arranged in the integrated plug and electrically connected with a standby circuit, a movable groove arranged in the middle of the integrated plug, a movable head clamped in the movable groove, a spring connected between the movable groove and the movable head, a main plug arranged in the middle of the movable head and electrically connected with a main jack of a main circuit, and a limit protrusion arranged on the side of the main plug; the driving mechanism is arranged on the mounting frame and comprises a limiting block arranged on the integrated plug, a limiting gear sleeved on the limiting block, a rotating seat clamped on the mounting frame and sleeved on the outer side of the integrated plug, an electric push rod arranged on the rotating seat and connected with the limiting gear, a clamping groove arranged in the limiting gear and adapted to the limiting block, a servo motor arranged on the side of the rotating seat, a driving gear connected to the driving end of the servo motor and arranged in a staggered mode with the limiting gear, and a signal connection device connected to the electric push rod and a controller of the servo motor.
Through adopting above-mentioned technical scheme, utilize socket mechanism, plug mechanism and actuating mechanism, realized selecting arbitrary converter of automatic control knob switch as main converter after the trouble, when main converter operation, reserve converter is beaten the switch to the hot standby state, reserve converter system is in the hot standby state, when main converter system breaks down suddenly, main converter sends the fault signal to reserve converter, automatic start reserve converter, send the warning suggestion simultaneously, thereby the trouble time has been shortened greatly, and the uncertainty of manual operation has been reduced, a control scheme that is suitable for in the more important place.
The present invention may be further configured in a preferred example to: the spare contacts are provided with an even number group, and the number of the external contacts is half of the number of the spare contacts.
Through adopting above-mentioned technical scheme, two reserve contacts that connect through the diode are a set of gear, and a plurality of reserve contacts that do not connect are a set of, and convenient to use can set up the connection quantity of converter as required.
The present invention may be further configured in a preferred example to: the rotation direction of the integrated plug is the same as the direction from the anode to the cathode of the diode.
By adopting the technical scheme, the number of the spare contacts can be doubled, and otherwise, the spare contacts are started to be in a second gear and then reduced to be in a first gear, but compared with the scheme, the spare contacts are unreasonable.
The present invention may be further configured in a preferred example to: the lifting block is of a half-piece water drop structure, and is arranged corresponding to the limiting protrusion.
Through adopting above-mentioned technical scheme, utilize spacing protruding in the direction spout on lifting the piece to move, and lifting one side of piece from low to high, the height is constantly increased, can make the activity head pressurized by pushing in the activity inslot, makes the main circuit break away from, and reserve circuit connects, prevents the influence of main circuit, and the security is higher.
The present invention may be further configured in a preferred example to: and the integrated socket and the integrated plug are respectively provided with a corresponding sealing ring.
By adopting the technical scheme, the safety of the socket mechanism and the plug mechanism in plugging is improved.
The present invention may be further configured in a preferred example to: and the integrated plug side is connected with a main circuit and a standby circuit which are externally connected with important equipment.
Through adopting above-mentioned technical scheme, the connection of gear of being convenient for is changed, convenient to use.
The present invention may be further configured in a preferred example to: and a manual knob for manual driving is further arranged on the integrated plug.
Through adopting above-mentioned technical scheme, can manual control, the practicality is higher.
The present invention may be further configured in a preferred example to: and the limiting gear is meshed with the rack on the driving gear in a horizontal projection manner.
Through adopting above-mentioned technical scheme, this position design is convenient for limit gear remove the back direct with drive gear meshing, prevent the card dead.
The technical scheme of the invention has the following beneficial technical effects:
1. according to the invention, through the socket mechanism, the plug mechanism and the driving mechanism, the automatic control knob switch is used for selecting any frequency converter as the main frequency converter after faults, when the main frequency converter operates, the standby frequency converter switches to a hot standby state, the standby frequency converter system is in the hot standby state, when the main frequency converter system suddenly breaks down, the main frequency converter sends out fault signals to the standby frequency converter, and the standby frequency converter is automatically started, and simultaneously, an alarm prompt is sent out, so that the fault time is greatly shortened, the uncertainty of manual operation is reduced, and the automatic control device is a control scheme suitable for important places and is convenient to popularize and use.
2. According to the invention, the standby frequency converter is divided into two gears, so that multiple groups of frequency converters are integrated into electric equipment during one-time rotation, and the standby frequency converter can be doubled to be integrated into the electric equipment during further rotation, and the automatic driving selection is performed according to the size of the clap, so that the practicability and feasibility of the device are greatly improved.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of one embodiment of the present invention;
FIG. 3 is a schematic diagram of a socket mechanism according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of a receptacle unit according to one embodiment of the invention;
FIG. 5 is a schematic view of a plug mechanism according to an embodiment of the present invention;
fig. 6 is a schematic view of a limiting gear according to an embodiment of the present invention.
Reference numerals:
100. a body; 110. a chassis; 120. an indicator light; 130. an alarm lamp; 140. a control computer; 150. a placing rack;
200. a socket mechanism; 210. a mounting frame; 220. an integrated socket; 230. a standby contact; 240. folding the contact piece; 250. a diode; 260. pressing a detection button; 270. a main jack; 280. lifting the block; 290. a guide chute;
300. a plug mechanism; 310. an integrated plug; 311. a manual knob; 320. an external contact; 330. a movable groove; 340. a movable head; 350. a spring; 360. a main plug; 370. a limit protrusion;
400. a driving mechanism; 410. a limiting block; 420. a limit gear; 430. a rotating seat; 440. an electric push rod; 450. a clamping groove; 460. a servo motor; 470. a drive gear; 480. and a controller.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present invention.
An automatic switching device for an on-line low-voltage frequency converter according to some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1-6, the present invention provides an automatic switching device for an on-line low-voltage frequency converter, including: the device comprises a machine body 100, a socket mechanism 200, a plug mechanism 300 and a driving mechanism 400, wherein the machine body 100 comprises a machine case 110, an indicator lamp 120 and an alarm lamp 130 which are arranged on the machine case 110, a control computer 140 arranged on the side of the machine case 110 and a placing rack 150 arranged in the machine case 110; wherein, the rack 150 is provided with a main frequency converter and a standby frequency converter, which are convenient for the intelligent setting of the connection controller 480 to control by the control computer 140, and the alarm lamp 130 can send out an alarm after the fault, the number of the main frequency converter and the standby frequency converter is numerous, and the main frequency converter and the standby frequency converter are set according to the requirement of using power.
Further, the socket mechanism 200 is disposed in the chassis 110, and the socket mechanism 200 includes a mounting frame 210 mounted in the chassis 110, an integrated socket 220 mounted on the mounting frame 210, a standby contact 230 disposed in the middle of the integrated socket 220 and electrically connected to the standby frequency converter, a folding contact 240 disposed outside the standby contact 230, a diode 250 connected to the standby contact 230, a push-type detection button 260 disposed on the standby contact 230 side, a main jack 270 disposed in the middle of the integrated socket 220 and electrically connected to the main frequency converter, a lifting block 280 disposed on the main jack 270 side, and a guide chute 290 disposed on the lifting block 280; the other side of the diode 250 is connected to another set of standby frequency converters, and the standby frequency converters are provided with another set of folding contacts 240, and the standby contacts 230 are located at the input side of the diode 250.
Specifically, the connection sides of the main frequency converter and the standby frequency converter are both arranged on the integrated socket 220, when the external contact 320 is in contact with the push-type detection button 260, the socket mechanism 200 is driven by the driving mechanism 400 to rotate after a fault occurs, so that the external contact 320 rotates to the position of the standby contact 230, the limit protrusion 370 slides in the guide chute 290 to rise, the movable head 340 is pushed into the movable chute 330, the main plug 360 is separated from the main jack 270, the disconnection of the main frequency converter is completed, the standby frequency converter is connected in first gear, when the fault is larger, the socket mechanism 200 is continuously driven by the driving mechanism 400 to rotate, the external contact 320 moves to the standby contact 230 at the other side of the standby contact 230 connected with the diode 250, at this time, two groups of standby contacts 230 are used in series under the guide action of the diode 250, and the two-gear regulation is realized, and after the fault is resolved, the quick reset is completed, so that the method is more reasonable.
In this embodiment, the number of the spare contacts 230 is half of the number of the spare contacts 230, two spare contacts 230 connected through the diode 250 are a set of gears, a plurality of spare contacts 230 which are not connected are a set of gears, the use is convenient, the number of the connections of the frequency converter can be set as required, in addition, the lifting block 280 is of a half-sheet water drop structure, the lifting block 280 is correspondingly arranged with the limit protrusion 370, the limit protrusion 370 moves in the guide chute 290 on the lifting block 280, one side of the lifting block 280 is gradually increased from low to high, the height is continuously increased, the movable head 340 can be pushed into the movable groove 330 to separate the main circuit, the spare circuit is connected, the influence of the main circuit is prevented, the safety is higher, the lifting block 280 can be set to be of a gradual-change lifting structure of other shapes, and the integrated socket 220 and the integrated plug 310 are respectively provided with corresponding sealing rings, so that the sealing property between the socket mechanism 200 and the plug mechanism 300 can be improved, and the safety is higher.
Further, the plug mechanism 300 is sleeved on the mounting frame 210 and is plugged on the integrated socket 220, the plug mechanism 300 comprises an integrated plug 310 plugged in the integrated socket 220, an external contact 320 arranged on the integrated plug 310 and electrically connected with a standby circuit, a movable groove 330 formed in the middle of the integrated plug 310, a movable head 340 clamped in the movable groove 330, a spring 350 connected between the movable groove 330 and the movable head 340, a main plug 360 arranged in the middle of the movable head 340 and electrically connected with a main jack 270 of a main circuit, and a limit protrusion 370 arranged on the side of the main plug 360, and the plug mechanism 300 and the socket mechanism 200 are plugged to realize three-level control of the connection of a frequency converter, so that not only is automatic control realized, but also the practicability of the frequency converter is higher in grading use.
In this embodiment, the rotation direction of the integrated plug 310 is the same as the direction from the anode to the cathode of the diode 250, the number of the spare contacts 230 can be doubled, otherwise, the two-gear is started, and then the two-gear is reduced to the first gear.
Further, the driving mechanism 400 is installed on the mounting frame 210, the driving mechanism 400 comprises a limiting block 410 installed on the integrated plug 310, a limiting gear 420 sleeved on the limiting block 410, a rotating seat 430 clamped on the mounting frame 210 and sleeved on the outer side of the integrated plug 310, an electric push rod 440 installed on the rotating seat 430 and connected with the limiting gear 420, a clamping groove 450 arranged in the limiting gear 420 and matched with the limiting block 410, a servo motor 460 installed on the side of the rotating seat 430, a driving gear 470 connected with the driving end of the servo motor 460 and arranged in a staggered mode with the limiting gear 420, and a controller 480 connected with the electric push rod 440 and the servo motor 460 in a signal mode.
Specifically, the horizontal projection of the racks on the limiting gear 420 and the driving gear 470 is meshed, and the position is designed to facilitate the limiting gear 420 to directly mesh with the driving gear 470 after moving, so as to prevent the clamping.
The working principle and the using flow of the invention are as follows: under normal operation state, socket mechanism 200 is spliced with plug mechanism 300, and main plug 360 contacts with push type detection button 260, main plug 360 inserts in the inside of main jack 270, after the trouble, controller 480 receives the signal, control electric putter 440 drives spacing gear 420 and moves to the stopper 410 outside, spacing gear 420 is connected with drive gear 470 meshing this moment, then control servo motor 460 drives drive gear 470 and integrated plug 310 and rotates, make external contact 320 rotate to folding contact 240 and extrude reserve contact 230, accomplish the connection use of a set of reserve contact 230, for first gear, limit bump 370 slides on lifting up the piece 280 in the process, push movable head 340 in movable groove 330, disconnect between main plug 360 and the main jack 270, when the trouble is great, a set of converter power is insufficient, servo motor 460 continues to drive integrated plug 310 to rotate, make integrated plug 310 be located on another set of reserve contact 230 that meets with diode 250 this moment, the quantity of reserve contact 230 is doubled, reset is driven by servo motor 460 again after the trouble is restoreed, main plug 360 is reinserted in the inside of main jack 270 under the effect of spring 350.
In the present invention, the term "plurality" means two or more, unless explicitly defined otherwise. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood that when an element is referred to as being "mounted," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. An automatic switching device of an online low-voltage frequency converter, which is characterized by comprising:
the machine body (100) comprises a machine case (110), an indicator lamp (120) and an alarm lamp (130) which are arranged on the machine case (110), a control computer (140) arranged on the side of the machine case (110) and a placing rack (150) arranged in the machine case (110); wherein,
a main frequency converter and a standby frequency converter are arranged on the placing frame (150);
the socket mechanism (200) is arranged in the chassis (110), the socket mechanism (200) comprises a mounting frame (210) mounted on the chassis (110), an integrated socket (220) mounted on the mounting frame (210), a standby contact (230) arranged in the middle of the integrated socket (220) and electrically connected with the standby frequency converter, a folding contact (240) arranged on the outer side of the standby contact (230), a diode (250) connected to the standby contact (230), a push-type detection button (260) arranged on the standby contact (230), a main jack (270) arranged in the middle of the integrated socket (220) and electrically connected with the main frequency converter, a lifting block (280) arranged on the main jack (270) and a guide chute (290) arranged on the lifting block (280); wherein,
the other side of the diode (250) is connected with another group of standby frequency converter, the standby frequency converter is provided with another group of folding contact pieces (240), and the standby contact pieces (230) are positioned on the input side of the diode (250);
the plug mechanism (300) is sleeved on the mounting frame (210) and is inserted on the integrated socket (220), the plug mechanism (300) comprises an integrated plug (310) inserted in the integrated socket (220), an external contact (320) arranged on the integrated plug (310) and electrically connected with a standby circuit, a movable groove (330) formed in the middle of the integrated plug (310), a movable head (340) clamped in the movable groove (330), a spring (350) connected between the movable groove (330) and the movable head (340), a main plug (360) arranged in the middle of the movable head (340) and electrically connected with a main jack (270) of a main circuit, and a limit protrusion (370) arranged on the side of the main plug (360);
the driving mechanism (400) is installed on the installation frame (210), the driving mechanism (400) comprises a limiting block (410) installed on the integrated plug (310), a limiting gear (420) sleeved on the limiting block (410), a rotating seat (430) clamped on the installation frame (210) and sleeved on the outer side of the integrated plug (310), an electric push rod (440) installed on the rotating seat (430) and connected with the limiting gear (420), a clamping groove (450) formed in the limiting gear (420) and matched with the limiting block (410), a servo motor (460) installed on the side of the rotating seat (430), a driving gear (470) connected to the driving end of the servo motor (460) and arranged in a staggered mode with the limiting gear (420) and a controller (480) in signal connection with the electric push rod (440) and the servo motor (460).
2. An automatic switching device for an on-line low voltage inverter according to claim 1, wherein the spare contacts (230) are provided with an even number of groups, and the number of the external contacts (320) is half the number of the spare contacts (230).
3. An on-line low-voltage inverter automatic switching device according to claim 1, characterized in that the rotation direction of the integrated plug (310) is the same as the direction from the positive pole to the negative pole of the diode (250).
4. The automatic switching device for an online low-voltage frequency converter according to claim 1, wherein the lifting block (280) has a half-sheet water drop structure, and the lifting block (280) is arranged corresponding to the limit protrusion (370).
5. An automatic switching device for an on-line low voltage frequency converter according to claim 1, wherein the integrated socket (220) and the integrated plug (310) are respectively provided with corresponding sealing rings.
6. An automatic switching device of an on-line low voltage frequency converter according to claim 1, wherein the integrated plug (310) side is connected with a main line and a standby line of an external important device.
7. An on-line automatic switching device for a low voltage frequency converter according to claim 1, wherein the integrated plug (310) is further provided with a manual knob (311) for manual driving.
8. An automatic switching device for an on-line low voltage inverter according to claim 1, wherein the rack on the limit gear (420) and the drive gear (470) are horizontally projected to mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111604649.0A CN114268165B (en) | 2021-12-25 | 2021-12-25 | Automatic switching device of online low-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111604649.0A CN114268165B (en) | 2021-12-25 | 2021-12-25 | Automatic switching device of online low-voltage frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114268165A CN114268165A (en) | 2022-04-01 |
| CN114268165B true CN114268165B (en) | 2024-01-16 |
Family
ID=80829867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111604649.0A Active CN114268165B (en) | 2021-12-25 | 2021-12-25 | Automatic switching device of online low-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114268165B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116779355B (en) * | 2023-08-17 | 2024-03-26 | 希格玛电气(珠海)有限公司 | Two unification mechanical interlocking device of dual supply inlet wire cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474760A (en) * | 2009-01-21 | 2009-07-08 | 沈阳理工大学 | Vertical lathe workstation control system |
| CN204959873U (en) * | 2015-07-13 | 2016-01-13 | 湖南华振供水设备有限公司 | A two frequency conversion automatic switching system for water supply equipment |
| CN206258708U (en) * | 2016-11-15 | 2017-06-16 | 青海光科光伏玻璃有限公司 | A kind of glass pressing machine group with frequency converter back-up system |
| CN214281216U (en) * | 2021-03-03 | 2021-09-24 | 江苏昊普智能装备有限公司 | Frequency converter with fault alarm device |
| CN113437905A (en) * | 2021-06-22 | 2021-09-24 | 南京钢铁股份有限公司 | One-key commissioning system of standby device and control method thereof |
-
2021
- 2021-12-25 CN CN202111604649.0A patent/CN114268165B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474760A (en) * | 2009-01-21 | 2009-07-08 | 沈阳理工大学 | Vertical lathe workstation control system |
| CN204959873U (en) * | 2015-07-13 | 2016-01-13 | 湖南华振供水设备有限公司 | A two frequency conversion automatic switching system for water supply equipment |
| CN206258708U (en) * | 2016-11-15 | 2017-06-16 | 青海光科光伏玻璃有限公司 | A kind of glass pressing machine group with frequency converter back-up system |
| CN214281216U (en) * | 2021-03-03 | 2021-09-24 | 江苏昊普智能装备有限公司 | Frequency converter with fault alarm device |
| CN113437905A (en) * | 2021-06-22 | 2021-09-24 | 南京钢铁股份有限公司 | One-key commissioning system of standby device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114268165A (en) | 2022-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114268165B (en) | Automatic switching device of online low-voltage frequency converter | |
| CN109166744B (en) | Dual-power automatic transfer switch and transfer control method thereof | |
| CN109813985B (en) | Electric automobile fills electric pile testing arrangement | |
| CN203104089U (en) | Simple power failure automatic switching apparatus | |
| CN102795116A (en) | Intelligent protective circuit and intelligent protective method for storage battery of hybrid power automobile | |
| CN202817760U (en) | Intelligent reactive-power compensation capacitor and intelligent reactive-power compensation system network | |
| CN207410016U (en) | A kind of converter plant protective device | |
| CN216848062U (en) | Automatic test platform for break-in of circuit breaker | |
| CN105977556B (en) | Intelligent accummulator maintenance system | |
| CN215221763U (en) | Energy storage separating brake protection system | |
| CN204928169U (en) | Low pressure drawer type capacitance compensation cabinet | |
| CN203466622U (en) | Dual power double channel automatic switching device for decomposer mixer motor | |
| CN107086645B (en) | Safety protection circuit of electric device with series charging and parallel discharging functions | |
| CN220527879U (en) | Safe automatic discharge control circuit of super capacitor module | |
| CN116131472B (en) | Household energy storage power supply | |
| CN201352707Y (en) | Energy-saving capacitor contactor accessory | |
| CN213782722U (en) | Improved drawer type capacitance compensation cabinet | |
| CN215497943U (en) | Pre-projection type capacitance compensation device | |
| CN2781546Y (en) | High-voltage double power supple selfpoperation and mutual operation locking device | |
| CN116885611B (en) | Extraction type low-voltage switch cabinet capable of preventing misoperation | |
| CN217215961U (en) | Electronic switch cabinet for controlling motor | |
| CN213042814U (en) | High isolation voltage intelligence change over switch | |
| CN207926477U (en) | A kind of auto by pass cabinet in high-voltage frequency converter | |
| CN113778016B (en) | Sawing machine controller | |
| CN220435062U (en) | Cooling fan power supply system for high-temperature reactor frequency converter |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 132000 No. 117, Kunlun Street, Jilin economic and Technological Development Zone, Jilin City, Jilin Province Patentee after: Jilin Guoxin Carbon Fiber Co.,Ltd. Country or region after: China Address before: 132000 No. 117, Kunlun Street, economic and Technological Development Zone, Jilin City, Jilin Province Patentee before: Jilin Baojing carbon material Co.,Ltd. Country or region before: China |