CN106208823A - A kind of safe electronic brake gear of electric wheelchair - Google Patents
A kind of safe electronic brake gear of electric wheelchair Download PDFInfo
- Publication number
- CN106208823A CN106208823A CN201610595839.3A CN201610595839A CN106208823A CN 106208823 A CN106208823 A CN 106208823A CN 201610595839 A CN201610595839 A CN 201610595839A CN 106208823 A CN106208823 A CN 106208823A
- Authority
- CN
- China
- Prior art keywords
- phase
- electric wheelchair
- contacts
- electrical relay
- normally closed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 208000032953 Device battery issue Diseases 0.000 abstract description 2
- 230000005669 field effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by short-circuit or resistive braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The braking safety device of a kind of electric wheelchair disclosed by the invention, it includes a control chip, three-phase electrical relay, an audion and a resistance, described three-phase electrical relay has a normally closed three-phase sets of contacts, three static contacts in normally closed three-phase sets of contacts are connected with the three-phase input line of the motor in electric wheelchair respectively, three moving contact electrical connections in normally closed three-phase sets of contacts；One tap of the line bag in described three-phase electrical relay connects the main power source output plus terminal of electric wheelchair, another tap of line bag in three-phase electrical relay connects the colelctor electrode of described triode, the grounded emitter of described triode, the voltage output end of described control chip is connected by the base stage of described resistance with described audion.The present invention is at battery failure, and when control chip damages, three-phase electrical relay, without running voltage, the most automatically gets up the three-phase input line short circuit of motor, it is achieved electric brake, makes electric wheelchair have safety, still have electric brake when being out of order.
Description
Technical field
The present invention relates to electric wheelchair technical field, particularly to the braking safety device of a kind of electric wheelchair.
Background technology
The electric brake of electric wheelchair made motor lines short circuit carry out by controlling field effect transistor in the past.But work as battery
Losing efficacy, during wafer damage, electric wheelchair there will be the situation not having electric brake, causes potential safety hazard to occupant.
Summary of the invention
The technical problem to be solved be the problem existing for the electric brake for existing electric wheelchair and
The braking safety device of a kind of electric wheelchair is provided.
The technical problem to be solved can be achieved through the following technical solutions:
The braking safety device of a kind of electric wheelchair, including a control chip, three-phase electrical relay, an audion and an electricity
Resistance, described three-phase electrical relay has a normally closed three-phase sets of contacts, and three static contacts in normally closed three-phase sets of contacts are respectively with electronic
The three-phase input line of the motor in wheelchair connects, three moving contact electrical connections in normally closed three-phase sets of contacts；Described three-phase relay
One tap of the line bag in device connects the main power source output plus terminal of electric wheelchair, and another of the line bag in three-phase electrical relay is taken out
Head connects the colelctor electrode of described triode, and the grounded emitter of described triode, the voltage output end of described control chip passes through
Described resistance is connected with the base stage of described audion.
In a preferred embodiment of the invention, described motor is brush motor or brushless electric machine.
Owing to have employed technical scheme as above, when the coil of three-phase electrical relay is without running voltage, three-phase electrical relay normal
Close three-phase sets of contacts the three-phase input line short circuit of motor, it is achieved electric brake；When electric wheelchair normally travels, control
Chip output 5v voltage, trigger triode, make the collector and emitter of audion turn on, now the line of three-phase electrical relay is surrounded by
Running voltage, the three-phase input line short circuit making the normally closed three-phase sets of contacts of three-phase electrical relay form normally open, i.e. motor disconnects,
Do not brake.When not travelling, control chip not output voltage, audion is not triggered, and makes the collector and emitter of audion
Separated, now the line bag of three-phase electrical relay is without running voltage, and the normally closed three-phase sets of contacts of three-phase electrical relay is the three of motor
Phase input line short circuit is got up, it is achieved electric brake.
Owing to have employed technical scheme as above, the present invention is at battery failure, when control chip damages, three-phase electrical relay without
Running voltage, the most automatically gets up the three-phase input line short circuit of motor, it is achieved electric brake, makes electric wheelchair have safety,
Electric brake is still had when being out of order.
Accompanying drawing explanation
Fig. 1 is the electric principle schematic of the braking safety device of the electric wheelchair of the present invention.
Detailed description of the invention
Seeing Fig. 1, the braking safety device of a kind of electric wheelchair be given in figure, including a control chip 2, three-phase relay
Device 1, one audion 4 and a resistance 5, three-phase electrical relay 1 has a normally closed three-phase sets of contacts 6, three in normally closed three-phase sets of contacts 6
Individual static contact 61,62,63 is connected with the three-phase input line 3 of the motor in electric wheelchair respectively, three in normally closed three-phase sets of contacts 6
Individual moving contact 61a, 62a, 63a electrically connect；One tap 71 of the line bag 7 in three-phase electrical relay 1 connects the main electricity of electric wheelchair
Source output plus terminal, another tap 72 of the line bag 7 in three-phase electrical relay 1 connects the colelctor electrode of triode 4, sending out of triode 4
Emitter grounding, the voltage output end of control chip 2 is connected with the base stage of audion 4 by resistance 3.Motor is brush motor or nothing
Brush motor.
Claims (2)
1. the braking safety device of an electric wheelchair, it is characterised in that include a control chip, three-phase electrical relay, one or three poles
Pipe and a resistance, described three-phase electrical relay has a normally closed three-phase sets of contacts, and three static contacts in normally closed three-phase sets of contacts divide
It is not connected with the three-phase input line of the motor in electric wheelchair, three moving contact electrical connections in normally closed three-phase sets of contacts；Described
One tap of the line bag in three-phase electrical relay connects the main power source output plus terminal of electric wheelchair, the line bag in three-phase electrical relay
Another tap connects the colelctor electrode of described triode, and the grounded emitter of described triode, the voltage of described control chip is defeated
Go out end to be connected by the base stage of described resistance with described audion.
The braking safety device of a kind of electric wheelchair the most as claimed in claim 1, it is characterised in that described motor is for there being brush electricity
Machine or brushless electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595839.3A CN106208823A (en) | 2016-07-26 | 2016-07-26 | A kind of safe electronic brake gear of electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595839.3A CN106208823A (en) | 2016-07-26 | 2016-07-26 | A kind of safe electronic brake gear of electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208823A true CN106208823A (en) | 2016-12-07 |
Family
ID=57495897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610595839.3A Pending CN106208823A (en) | 2016-07-26 | 2016-07-26 | A kind of safe electronic brake gear of electric wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208823A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343833A (en) * | 2017-06-27 | 2017-11-14 | 上海互邦智能康复设备股份有限公司 | The brake method and driving and braking circuit of a kind of electric wheelchair using brushless electric machine driving |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6176084A (en) * | 1984-09-19 | 1986-04-18 | Tokyo Electric Co Ltd | Magnetic recorder |
| CN200962517Y (en) * | 2006-10-27 | 2007-10-17 | 天津市亚安科技电子有限公司 | Motor short circuit self-lock pan/tilt |
| CN201667626U (en) * | 2010-01-16 | 2010-12-08 | 刘勇 | Electrocar motor brake |
| CN201956948U (en) * | 2011-02-18 | 2011-08-31 | 珠海运控电机有限公司 | AC permanent magnet servo system with emergency brake protection function |
| CN103633895A (en) * | 2012-08-28 | 2014-03-12 | 珠海松下马达有限公司 | AC servo driver and relative method |
| CN204907275U (en) * | 2015-07-28 | 2015-12-30 | 苏州宝时得电动工具有限公司 | Electron braking system and electric tool |
| CN105490591A (en) * | 2016-01-11 | 2016-04-13 | 南京康尼机电股份有限公司 | Outage self-lock apparatus for actuator |
| CN206060595U (en) * | 2016-07-26 | 2017-03-29 | 上海互邦医疗器械有限公司 | A kind of safe electronic brake gear of electric wheelchair |
-
2016
- 2016-07-26 CN CN201610595839.3A patent/CN106208823A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6176084A (en) * | 1984-09-19 | 1986-04-18 | Tokyo Electric Co Ltd | Magnetic recorder |
| CN200962517Y (en) * | 2006-10-27 | 2007-10-17 | 天津市亚安科技电子有限公司 | Motor short circuit self-lock pan/tilt |
| CN201667626U (en) * | 2010-01-16 | 2010-12-08 | 刘勇 | Electrocar motor brake |
| CN201956948U (en) * | 2011-02-18 | 2011-08-31 | 珠海运控电机有限公司 | AC permanent magnet servo system with emergency brake protection function |
| CN103633895A (en) * | 2012-08-28 | 2014-03-12 | 珠海松下马达有限公司 | AC servo driver and relative method |
| CN204907275U (en) * | 2015-07-28 | 2015-12-30 | 苏州宝时得电动工具有限公司 | Electron braking system and electric tool |
| CN105490591A (en) * | 2016-01-11 | 2016-04-13 | 南京康尼机电股份有限公司 | Outage self-lock apparatus for actuator |
| CN206060595U (en) * | 2016-07-26 | 2017-03-29 | 上海互邦医疗器械有限公司 | A kind of safe electronic brake gear of electric wheelchair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343833A (en) * | 2017-06-27 | 2017-11-14 | 上海互邦智能康复设备股份有限公司 | The brake method and driving and braking circuit of a kind of electric wheelchair using brushless electric machine driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Five teams of 201108 Shanghai City Xiangyang Village Minhang District Zhuanqiao Applicant after: Shanghai Hubang intelligent rehabilitation equipment Limited by Share Ltd Address before: Five teams of 201108 Shanghai City Xiangyang Village Minhang District Zhuanqiao Applicant before: Shanghai Hubang Medical Appliances Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |