CN103066898B - Conical motor stop brake system and method - Google Patents
Conical motor stop brake system and method Download PDFInfo
- Publication number
- CN103066898B CN103066898B CN201310025323.1A CN201310025323A CN103066898B CN 103066898 B CN103066898 B CN 103066898B CN 201310025323 A CN201310025323 A CN 201310025323A CN 103066898 B CN103066898 B CN 103066898B
- Authority
- CN
- China
- Prior art keywords
- cone
- electric machine
- duration
- short circuit
- shaped electric
- 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
Landscapes
- Stopping Of Electric Motors (AREA)
Abstract
The invention provides a kind of conical motor stop brake system, described Cone-shaped electric machine is rotated by transducer drive, this system includes short circuit control unit and timer unit, wherein: described timer unit, for starting timing when described converter stops output and exporting the first signal when reaching the first duration, start timing after inverter output terminal short circuit and export secondary signal when reaching the second duration; Described short circuit control unit, for the connection between making any biphase short circuit of inverter output terminal when receiving the first signal and disconnecting the phase line of described inverter output terminal when receiving secondary signal. The present invention also provides for a kind of method of correspondence. The present invention, by the phase line of short circuit inverter output terminal when Cone-shaped electric machine is shut down, can quickly eliminate the internal remanent magnetism of Cone-shaped electric machine so that Cone-shaped electric machine can close rapidly brake.
Description
Technical field
The present invention relates to Cone-shaped electric machine control field, more particularly, it relates to a kind of conical motor stop brake system and method.
Background technology
Cone-shaped electric machine (electric block) is a kind of threephase asynchronous tapered from the stator of strap brake and rotor, and it integrates power and brake force. This motor has compact conformation, and volume is little, light weight, and starting torque is big, and braking is reliable rapidly, uses the features such as safety, because of its simple in construction, easy to use, in medium and small lifting scene extensive use.
Cone-shaped electric machine adapts to the occasion of Fraquent start, braking and rotating alternate run, its operation principle is: the bore of stator of motor is all tapered with rotor profile, constituting electromagnetic brake device, electromagnetic brake device realizes opening a sluice gate and band-type brake action according to the combined effect between electromagnetic force and spring force between stator and rotor in Cone-shaped electric machine. Specifically, the conic braking ring of Cone-shaped electric machine is set on fan braked wheel, and brake stator ring is set on rear end cap; After stator terminal passes into three-phase alternating current, producing rotating excitation field, produce axial magnetic pull simultaneously, make rotor axial move and compress spring so that the conical ring on fan braked wheel and brake stator ring leave, rotor starts to rotate; After stator power-off, axial magnetic pull disappears, and rotor under the action of the spring, resets together with fan braked wheel, makes dynamic and static brake hoop contact, and produces moment of friction, forces motor stall immediately.
Current Cone-shaped electric machine is all that the mode being automatically switched off brake after adopting converter free parking, Cone-shaped electric machine degaussing is braked. The brake of Cone-shaped electric machine is built in motor, is automatically switched off when the magnetic field intensity in motor is less than certain value.
But above-mentioned Cone-shaped electric machine there is also remanent magnetism in the moment disconnecting power supply, and decay gradually by regular hour constant. Owing to traditional control mode cannot demagnetization rapidly when converter stops, converter is made to start to need between Cone-shaped electric machine brake closedown the time of at least 100～200ms from execution cutoff command, interior converter does not export during this period of time, brake is also without closedown, and therefore load weight can cause slipping hook by freely falling body.
Summary of the invention
The technical problem to be solved in the present invention is in that, easily occurs slipping the problem of hook when stopping for above-mentioned Cone-shaped electric machine, it is provided that a kind of conical motor stop brake system and method.
This invention address that the technical scheme of above-mentioned technical problem is, a kind of conical motor stop brake system is provided, described Cone-shaped electric machine is rotated by transducer drive, the outfan of described converter is connected to the input of Cone-shaped electric machine, this system includes short circuit control unit and timer unit, wherein: described timer unit, for starting timing when described converter stops output and exporting the first signal when reaching the first duration, start timing after inverter output terminal short circuit and export secondary signal when reaching the second duration; The value of described first duration is between the 0-1 second; Described short circuit control unit, for the connection between making any biphase short circuit of inverter output terminal when receiving the first signal and disconnecting the phase line of described inverter output terminal when receiving secondary signal; Described second duration is the 0-1 second.
In conical motor stop brake system of the present invention, described short circuit control unit includes control chip, relay circuit and catalyst, wherein: the described control chip output state according to converter and the signal from timer unit export, to relay circuit, the instruction that is turned on or off; Solenoid that described catalyst includes being connected in relay circuit and be connected to any two alternate contacts of described inverter output terminal.
In conical motor stop brake system of the present invention, described control chip and relay circuit are arranged in described converter.
In conical motor stop brake system of the present invention, described first duration is 0-500 millisecond. The present invention also provides for a kind of Cone-shaped electric machine parking brake method, and described Cone-shaped electric machine is rotated by transducer drive, and the outfan of described converter is connected to the input of Cone-shaped electric machine, and the method comprises the following steps:
A () starts timing when described converter stops output;
B (), when reaching the first duration, makes any biphase short circuit of inverter output terminal; The value of described first duration is between the 0-1 second;
C (), when short circuit reaches the second duration, disconnects the connection between the phase line of described inverter output terminal; Described second duration is the 0-1 second.
In Cone-shaped electric machine parking brake method of the present invention; in described step (b) and (c); the short circuit between the phase line of inverter output terminal and disconnection is realized, solenoid that described catalyst includes being connected in relay circuit and be connected to any two alternate contacts of described inverter output terminal by the catalyst controlled by relay circuit.
In Cone-shaped electric machine parking brake method of the present invention, described relay circuit is arranged in converter and is controlled to be turned on or off by the control chip of converter.
In Cone-shaped electric machine parking brake method of the present invention, described first duration is 0-500 millisecond. The conical motor stop brake system of the present invention and method, by the phase line of short circuit inverter output terminal when Cone-shaped electric machine is shut down, can quickly eliminate the internal remanent magnetism of Cone-shaped electric machine so that Cone-shaped electric machine can close rapidly brake. The present invention can be prevented effectively from when Cone-shaped electric machine stops there is slipping hook phenomenon.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of conical motor stop brake system first embodiment of the present invention.
Fig. 2 is the schematic diagram of conical motor stop brake system the second embodiment of the present invention.
Fig. 3 is the flow chart of Cone-shaped electric machine parking brake embodiment of the method for the present invention.
Fig. 4 is the schematic flow sheet of short circuit inverter output terminal step in Fig. 3.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, be the schematic diagram of conical motor stop brake system first embodiment of the present invention, wherein above-mentioned Cone-shaped electric machine 12 is driven by converter 11 and rotates, and namely the outfan of converter 11 is connected to the input of Cone-shaped electric machine 12. Conical motor stop brake system in the present embodiment includes short circuit control unit 14 and timer unit 13; wherein timer unit 13 is used for carrying out timing control, and short circuit control unit 14 is then for controlling the short circuit of two phase lines and the disconnection that set in the triple line of the outfan of converter 11. Above-mentioned short circuit control unit 14 and timer unit 13 can be integrated into converter and realize in conjunction with software. In actual applications, above-mentioned short circuit control unit 14 and timer unit 13 realize also by independent hardware and software, and it realizes Cone-shaped electric machine shutdown control by exporting control signal to inverter output terminal.
Specifically, above-mentioned timer unit 13 starts timing and exports the first signal when reaching the first duration, starts timing after inverter output terminal short circuit (short circuit control unit 14 produces short circuit control signal) and export secondary signal when reaching the second duration when converter 11 stops output. Above-mentioned timer unit 13 can be made up of two independent timer circuits, it is possible to is made up of a timer circuit. And above-mentioned first duration, the second duration can be set according to different application scenarios.
Short circuit control unit 14 then make when receiving the first signal from timer unit 13 outfan of converter 11 any biphase short circuit and when receiving secondary signal disconnect inverter output terminal short circuit phase line between connection. The outfan of converter 11, once short circuit, just can eliminate the remanent magnetism within Cone-shaped electric machine 12, immediately so that Cone-shaped electric machine 12 can close rapidly brake.
Owing to the outlet side of short circuit converter 11 will cause converter 11 internal current to steeply rise, thus producing the danger of stream, it is therefore desirable to control the time of output side transducer short circuit, namely need to control the first above-mentioned duration and the second duration.
The first above-mentioned duration is the time that converter 11 stopping output starting short circuit to inverter output terminal. If this first duration arranges too short, converter had the danger of stream, if arranging long, and the DeGrain of Cone-shaped electric machine parking toll. The value of this first duration (need to ensure that converter 11 only flows) between the 0-1 second, and can be configured according to concrete application scenario (such as Cone-shaped electric machine rated power, load-carrying etc.).It is preferred that this first duration can be 5～10ms.
The above-mentioned time that the second duration is inverter output terminal short circuit. If this second duration arranges too short, the DeGrain of Cone-shaped electric machine parking toll, the long result of use then affecting frequent start-stop occasion is set. The value of this second duration is between the 0-1 second, and can be configured according to concrete application scenario (such as Cone-shaped electric machine rated power, load-carrying etc.). It is preferred that this second time can be 300～500ms.
As in figure 2 it is shown, be the schematic diagram of conical motor stop brake system the second embodiment of the present invention, wherein above-mentioned Cone-shaped electric machine 22 is driven by converter 21 and rotates, and namely the outfan of converter 21 is connected to the input of Cone-shaped electric machine 22. Conical motor stop brake system in the present embodiment includes timer unit 23 and short circuit control unit equally, and timer unit 23 and short circuit control unit are integrated into converter 21.
Short circuit control unit in the present embodiment includes control chip 241, relay circuit 242 and catalyst, solenoid 2431 that wherein catalyst includes being connected in relay circuit 242 and be connected to any two alternate contacts 2432 of inverter output terminal.
Similarly, above-mentioned timer unit 23 starts timing and exports the first signal when reaching the first duration, starts timing after inverter output terminal short circuit (relay circuit 242 closes) and export secondary signal when reaching the second duration when converter 21 stops output. Control chip 241 can be the control chip of converter, and its output state according to converter and the signal from timer unit 23 export, to relay circuit 242, the instruction that is turned on or off. Such as, control chip 241, when receiving the first signal from timer unit 23, makes relay circuit 242 close, thus the solenoid 2431 in relay circuit 242 produces magnetic field, make to be connected to any two alternate contact 2432 adhesives of inverter output terminal, inverter output terminal short circuit; When receiving the secondary signal from timer unit 23, relay circuit 242 is made to disconnect, thus the magnetic field of the solenoid 2431 in relay circuit 242 disappears, releasing contact 2432, make the short circuit of inverter output terminal disconnect.
As it is shown on figure 3, be the flow chart of Cone-shaped electric machine parking brake embodiment of the method for the present invention, wherein Cone-shaped electric machine is rotated by transducer drive. The method comprises the following steps:
Step S31: when converter receives cutoff command, stops output. The present embodiment is applicable to two kinds of car-parking models of existing converter: decelerates to stopping output or stops output immediately.
Step S32: start timing when converter stops output.
Step S33: judging whether to reach the first duration, if reaching the first duration, performing step S34; Otherwise return step S32. The value of this first duration is between 0-500 millisecond, and can be configured according to concrete application scenario (such as Cone-shaped electric machine rated power, load-carrying etc.). It is preferred that above-mentioned first duration can be 5-10 millisecond
Step S34: make any biphase short circuit of inverter output terminal, and perform step S35.
Step S35: judging whether to reach the second duration (this second duration starts timing from the phase line short circuit of inverter output terminal), if reaching the second duration, performing step S36, otherwise returns step S34. The value of this second duration is between the 0-1 second, and can be configured according to concrete application scenario (such as Cone-shaped electric machine rated power, load-carrying etc.).It is preferred that above-mentioned second duration can be 300-500 millisecond.
Step S36: disconnecting the connection between the phase line of inverter output terminal, flow process terminates.
In above-mentioned Cone-shaped electric machine parking brake method; can by Frequency Converter Control relay circuit adhesive or releasing contactor; realize the short circuit between the phase line of inverter output terminal and disconnection, solenoid that wherein catalyst includes being connected in relay circuit and be connected to any two alternate contacts of described inverter output terminal. Now, the operation of the short circuit inverter output terminal in Fig. 3 (i.e. step S34) can pass through the step realization shown in Fig. 4:
Step S341: converter makes relay circuit turn on, so that the solenoid in relay circuit produces magnetic field, converter starts timing.
Step S342: solenoid is by the contact adhesive between the phase line of inverter output terminal, and inverter output terminal realizes short circuit.
Step S343: the magnetic field intensity of Cone-shaped electric machine reduces rapidly and the arrester close of Cone-shaped electric machine when lower than certain value.
The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (8)
1. a conical motor stop brake system, described Cone-shaped electric machine is rotated by transducer drive, it is characterized in that: the outfan of described converter is connected to the input of Cone-shaped electric machine, this system includes short circuit control unit and timer unit, wherein: described timer unit, for starting timing when described converter stops output and exporting the first signal when reaching the first duration, start timing after inverter output terminal short circuit and export secondary signal when reaching the second duration; The value of described first duration is between the 0-1 second; Described second duration is the 0-1 second; Described short circuit control unit, for the connection between making any biphase short circuit of inverter output terminal when receiving the first signal and disconnecting the phase line of described inverter output terminal when receiving secondary signal.
2. conical motor stop brake system according to claim 1, it is characterized in that: described short circuit control unit includes control chip, relay circuit and catalyst, wherein: the described control chip output state according to converter and the signal from timer unit export, to relay circuit, the instruction that is turned on or off; Solenoid that described catalyst includes being connected in relay circuit and be connected to any two alternate contacts of described inverter output terminal.
3. conical motor stop brake system according to claim 2, it is characterised in that: described control chip and relay circuit are arranged in described converter.
4. the conical motor stop brake system according to any one of claim 1-3, it is characterised in that: described first duration is 0-500 millisecond.
5. a Cone-shaped electric machine parking brake method, described Cone-shaped electric machine is rotated by transducer drive, it is characterised in that: the outfan of described converter is connected to the input of Cone-shaped electric machine, and the method comprises the following steps:
A () starts timing when described converter stops output;
B (), when reaching the first duration, makes any biphase short circuit of inverter output terminal;The value of described first duration is between the 0-1 second;
C (), when short circuit reaches the second duration, disconnects the connection between the phase line of described inverter output terminal; Described second duration is the 0-1 second.
6. Cone-shaped electric machine parking brake method according to claim 5; it is characterized in that: in described step (b) and (c); the short circuit between the phase line of inverter output terminal and disconnection is realized, solenoid that described catalyst includes being connected in relay circuit and be connected to any two alternate contacts of described inverter output terminal by the catalyst controlled by relay circuit.
7. Cone-shaped electric machine parking brake method according to claim 6, it is characterised in that: described relay circuit is arranged in converter and is controlled to be turned on or off by the control chip of converter.
8. the Cone-shaped electric machine parking brake method according to any one of claim 5-7, it is characterised in that: described first duration is 0-500 millisecond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025323.1A CN103066898B (en) | 2013-01-23 | 2013-01-23 | Conical motor stop brake system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025323.1A CN103066898B (en) | 2013-01-23 | 2013-01-23 | Conical motor stop brake system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103066898A CN103066898A (en) | 2013-04-24 |
| CN103066898B true CN103066898B (en) | 2016-06-15 |
Family
ID=48109389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310025323.1A Active CN103066898B (en) | 2013-01-23 | 2013-01-23 | Conical motor stop brake system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103066898B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026791A (en) * | 2016-06-30 | 2016-10-12 | 冼毅 | Short-circuit brake control method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580551B (en) * | 2013-08-22 | 2016-02-10 | 深圳市伟创电气有限公司 | The degaussing circuit that three phase squirrel cage motor is freely shut down and method |
| CN110336491A (en) * | 2019-08-05 | 2019-10-15 | 南京康尼智控技术有限公司 | Cut off self-lock electric system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2057209A (en) * | 1979-08-24 | 1981-03-25 | Ramage S | Alternating current motor with an electrical braking system |
| CN101427456A (en) * | 2006-04-19 | 2009-05-06 | 戴姆勒股份公司 | Control system for an electric motor |
| CN201667626U (en) * | 2010-01-16 | 2010-12-08 | 刘勇 | Electrocar motor brake |
| CN102320532A (en) * | 2011-06-22 | 2012-01-18 | 常熟开关制造有限公司(原常熟开关厂） | Control method for preventing hook from slipping when electric hoist stops |
| CN102545776A (en) * | 2012-02-21 | 2012-07-04 | 天津天安起重电器有限公司 | Variable frequency control circuit and control method for electric hoist |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398813A (en) * | 2011-09-30 | 2012-04-04 | 快意电梯有限公司 | High-speed elevator redundancy braking protection device and method |
-
2013
- 2013-01-23 CN CN201310025323.1A patent/CN103066898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2057209A (en) * | 1979-08-24 | 1981-03-25 | Ramage S | Alternating current motor with an electrical braking system |
| CN101427456A (en) * | 2006-04-19 | 2009-05-06 | 戴姆勒股份公司 | Control system for an electric motor |
| CN201667626U (en) * | 2010-01-16 | 2010-12-08 | 刘勇 | Electrocar motor brake |
| CN102320532A (en) * | 2011-06-22 | 2012-01-18 | 常熟开关制造有限公司(原常熟开关厂） | Control method for preventing hook from slipping when electric hoist stops |
| CN102545776A (en) * | 2012-02-21 | 2012-07-04 | 天津天安起重电器有限公司 | Variable frequency control circuit and control method for electric hoist |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026791A (en) * | 2016-06-30 | 2016-10-12 | 冼毅 | Short-circuit brake control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103066898A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305888B (en) | Control device of electric motor | |
| EP2496507B1 (en) | Braking apparatus and electric drive for an elevator system and elevator system comprising them | |
| CN103066898B (en) | Conical motor stop brake system and method | |
| CN102325712B (en) | Brake device for elevator | |
| CN103407896B (en) | A kind of Brake time sequence control of hoisting crane and frequency converter | |
| CN111469677B (en) | Trailer control method and system | |
| CN109052207B (en) | Protection control method for failure of hoisting mechanism brake of hoisting equipment | |
| US10495059B2 (en) | Method for controlling a rotor blade adjustment device | |
| CN111502970B (en) | Start-stop control method and system for top shaft oil pump and overflow electromagnetic valve | |
| KR101569264B1 (en) | Variable speed hoist | |
| CN105762766A (en) | Synchronous motor star sealing control system and method | |
| CN103078567B (en) | Cone-shaped electric machine shutdown control system and method | |
| CN105398902A (en) | Detection device and method for brake torque of elevator magnetorheological fluid brake | |
| CN108773786A (en) | Elevator brake Power Supply breaking system | |
| CN203896232U (en) | Mechanical braking control device for hoisting mechanism of piler | |
| CN110149073B (en) | Braking method and system | |
| CN102570941A (en) | Special high-voltage frequency converter for changing frequency and adjusting speed of high-voltage synchronous motor | |
| CN202602580U (en) | High-voltage frequency converter specially for frequency conversion and speed regulation of high-voltage synchronous motor | |
| CN211405917U (en) | Control device for star-sealing braking of motor | |
| CN204206054U (en) | A kind of frequency-changing control system of work position rotation table | |
| CN216699873U (en) | Driver and motor band-type brake system | |
| CN213990540U (en) | Brushless motor | |
| US7327110B2 (en) | Drive circuit for braking a motor during a malfunction | |
| CN216718961U (en) | Control device of subway fan | |
| CN205168209U (en) | Electric skateboard control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160225 Address after: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Applicant after: Suzhou Huichuan Technology Co.,Ltd. Applicant after: Shenzhen Inovance Technology Co., Ltd. Address before: Wuzhong District Wuzhong Economic Development Zone, Suzhou City, Jiangsu province 215000 Wang Xiang Shan Industrial Park Road on the north side of friends Applicant before: Suzhou Huichuan Technology Co.,Ltd. Applicant before: Suzhou Monarch Control Technology Co., Ltd. Applicant before: Shenzhen Inovance Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |