CN104300841B - A kind of motor start circuit of medical centrifuge - Google Patents
A kind of motor start circuit of medical centrifuge Download PDFInfo
- Publication number
- CN104300841B CN104300841B CN201410623884.6A CN201410623884A CN104300841B CN 104300841 B CN104300841 B CN 104300841B CN 201410623884 A CN201410623884 A CN 201410623884A CN 104300841 B CN104300841 B CN 104300841B
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- catalyst
- contact
- winding
- connects
- switch
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- 239000003054 catalyst Substances 0.000 claims abstract description 57
- 238000004804 winding Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday 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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
- H02P1/20—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor by progressive reduction of resistance in series with armature winding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses the motor start circuit of a kind of medical centrifuge, including DC source, on and off switch, fuse, start button, stop button, first catalyst, second catalyst, 3rd catalyst, the time relay, centrifugal motor, first winding, second winding and resistance, compared with prior art, the present invention can make centrifugal motor after clean boot, under rated operational voltage properly functioning, better working stability, have employed the time relay, can preferably prevent at the beginning of starting, dropping resistor is by the second catalyst short circuit, simple in construction, can be widely applied in medical centrifuge.
Description
Technical field
The present invention relates to a kind of motor start circuit, particularly relate to the motor start circuit of a kind of medical centrifuge.
Background technology
Generally we are when for hospital laboratory buying low speed centrifuge, and the low-speed centrifugal chance generally used is used
Do vacuum blood collection to separate, used vacuum test tube, city-level unit blood taking tube to be processed every day number
Measuring the most, it will usually select once the machine that centrifugal amount is bigger, the service behaviour of centrifugal motor is wanted by this
Asking higher, the motor start circuit job stability of medical centrifuge is poor now, often can not meet me
Work requirements.
Summary of the invention
The purpose of the present invention is that the electric motor starting providing a kind of medical centrifuge in order to solve the problems referred to above
Circuit.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes DC source, on and off switch, fuse, start button, stop button, first connects
Tentaculum, the second catalyst, the 3rd catalyst, the time relay, centrifugal motor, the first winding, second
Winding and resistance, the positive pole of described DC source is connected with the first input end of described on and off switch, described directly
The negative pole of stream power supply is connected with the second input of described on and off switch, the first outfan of described on and off switch
It is connected with the first end of the first end of described stop button and described first catalyst the first contact simultaneously, described
Second outfan of on and off switch is connected with the first end of described fuse, and the second end of described fuse is simultaneously
With the first end of described first catalyst the 3rd contact, the first end of described first contactor coil and described time
Between the first end of relay coil connect, the second end of described first contactor coil is pressed with described startup simultaneously
First end of button, the second end of described time relay coil and the first of described first catalyst the second contact
End connects, the second end of described start button simultaneously with the second end and the institute of described first catalyst the second contact
The second end stating stop button connects, and the second end of described first catalyst the first contact is simultaneously with described first
First end of the first end of winding, the first end of described centrifugal motor and described time relay contact connects,
Second end of described centrifugal motor is connected with the first end of described second winding, the second of described second winding
The while of end, the first end with the first end of described 3rd contactor coil and described second catalyst the first contact connects
Connecing, described second end of the 3rd contactor coil is connected with the first end of described resistance, the second of described resistance
End simultaneously with the second end of described first catalyst the 3rd contact, the second end of described first winding, described the
First end of the second end of two catalyst the first contacts and described 3rd catalyst the first contact connects, and described the
Second end of three catalyst the first contacts is connected with the first end of described second contactor coil, and described second connects
Second end of tentaculum coil is connected with the second end of described time relay contact.
Specifically, described on and off switch is secondary linkage switch.
The beneficial effects of the present invention is:
The motor start circuit of a kind of medical centrifuge of the present invention, can make centrifugal motor in clean boot
Afterwards, properly functioning under rated operational voltage, better working stability, have employed the time relay, can
Preferably preventing at the beginning of starting, dropping resistor, by the second catalyst short circuit, simple in construction, can extensively be applied
In medical centrifuge.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the motor start circuit of a kind of medical centrifuge of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
As it is shown in figure 1, the present invention include DC source DC, on and off switch QS, fuse FU, start by
Button ST, stop button STP, the first catalyst KM1, the second catalyst KM2, the 3rd catalyst KM3,
Time relay KT, centrifugal motor M, the first winding L1, the second winding L2 and resistance R, unidirectional current
The positive pole of source DC is connected with the first input end of on and off switch QS, and the negative pole of DC source DC is opened with power supply
The second input closing QS connects, first outfan of on and off switch QS simultaneously with the of stop button STP
First end of one end and first catalyst KM1 the first contact KM1-1 connects, and the second of on and off switch QS is defeated
Go out end be connected with first end of fuse FU, fuse FU second end while with the first catalyst KM1
First end of the 3rd contact KM1-3, the first end of the first catalyst KM1 coil and time relay KT
First end of coil connects, the second end of the first catalyst KM1 coil simultaneously with the first of start button ST
End, the second end of time relay KT coil and first end of first catalyst KM1 the second contact KM1-2
Connect, the second end of start button ST simultaneously with second end of first catalyst KM1 the second contact KM1-2
Connecting with second end of stop button STP, second end of first catalyst KM1 the first contact KM1-1 is same
Time with first end of the first winding L1, first end of centrifugal motor M and time relay KT contact KT-1
The first end connect, the first end connection of second end of centrifugal motor M and the second winding L2, second around
Second end of group L2 is simultaneously tactile with the first end of the 3rd catalyst KM3 coil and the second catalyst KM2 first
First end of some KM2-1 connects, and the second end of the 3rd catalyst KM3 coil connects with first end of resistance R
Connect, second end of resistance R simultaneously with second end of the first catalyst KM1 the 3rd contact KM1-3, first
Second end of winding L1, second end of second catalyst KM2 the first contact KM2-1 and the 3rd catalyst
First end of KM3 the first contact KM3-1 connects, the second of the 3rd catalyst KM3 the first contact KM3-1
End is connected with the first end of the second catalyst KM2 coil, the second end of the second catalyst KM2 coil and time
Between relay K T contact KT-1 second end connect, on and off switch QS be secondary linkage switch.
The motor start circuit of a kind of medical centrifuge of the present invention, when power turn-on switchs QS, presses and opens
Dynamic button ST, the first catalyst KM1 coil obtains electricity adhesive (KM1-1 to the 3rd contact, its first contact
KM1-3 is normally opened contact), its at 3 normally opened contact all close, centrifugal motor M armature circuit seals in
Resistance R makees reduced-voltage starting, after the second contact KM1-2 Guan Bi of the first catalyst KM1, it is achieved self-locking,
Time relay KT coil also electric, meanwhile, the 3rd catalyst KM3 catalyst action, it is normally closed
Contact KM3-1 disconnects, and when centrifugal motor M rotating speed raises, makes armature supply decline, the 3rd catalyst
KM3 discharges, and the second catalyst KM2 obtains electronic work, the contact KM2-1 Guan Bi of the second catalyst KM2,
Dropping resistor R short circuit, centrifugal motor M just starts under rated operational voltage properly functioning, during employing
Between relay K T in order to prevent start at the beginning of, dropping resistor R is short by the second catalyst KM2
Connect.Work structuring of the present invention is simple, can effectively ensure the normal startup of centrifugal motor M, make centrifuge
Motor M is properly functioning under rated operational voltage, can be widely applied in medical centrifuge.
Claims (2)
1. the motor start circuit of a medical centrifuge, it is characterised in that: include that DC source, power supply leave
Pass, fuse, start button, stop button, the first catalyst, the second catalyst, the 3rd catalyst,
The time relay, centrifugal motor, the first winding, the second winding and resistance, the positive pole of described DC source
It is connected with the first input end of described on and off switch, the of the negative pole of described DC source and described on and off switch
Two inputs connect, the first outfan of described on and off switch simultaneously with the first end and the institute of described stop button
The first end stating first catalyst the first contact connects, the second outfan of described on and off switch and described fusing
First end of device connects, the second end of described fuse simultaneously with the first of described first catalyst the 3rd contact
First end of end, the first end of described first contactor coil and described time relay coil connects, described
Second end of the first contactor coil simultaneously with the first end of described start button, described time relay coil
The second end and described first catalyst the second contact first end connect, the second end of described start button with
Time be connected with described second end of first catalyst the second contact and the second end of described stop button, described
Second end of one catalyst the first contact simultaneously with the first end of described first winding, described centrifugal motor
First end of the first end and described time relay contact connects, and the second end of described centrifugal motor is with described
First end of the second winding connects, the second end of described second winding simultaneously with described 3rd contactor coil
First end of the first end and described second catalyst the first contact connects, the second of described 3rd contactor coil
End is connected with the first end of described resistance, and the second end of described resistance touches with described first catalyst the 3rd simultaneously
Second end, the second end of described first winding, the second end of described second catalyst the first contact and the institute of point
The first end stating the 3rd catalyst the first contact connects, the second end of described 3rd catalyst the first contact and institute
The first end stating the second contactor coil connects, and the second end of described second contactor coil continued with the described time
Second end of appliance contact connects.
The motor start circuit of a kind of medical centrifuge the most according to claim 1, it is characterised in that:
Described on and off switch is secondary linkage switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623884.6A CN104300841B (en) | 2014-11-07 | 2014-11-07 | A kind of motor start circuit of medical centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623884.6A CN104300841B (en) | 2014-11-07 | 2014-11-07 | A kind of motor start circuit of medical centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300841A CN104300841A (en) | 2015-01-21 |
| CN104300841B true CN104300841B (en) | 2016-08-17 |
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ID=52320456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623884.6A Active CN104300841B (en) | 2014-11-07 | 2014-11-07 | A kind of motor start circuit of medical centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300841B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514933B (en) * | 2016-01-08 | 2018-01-09 | 中国人民解放军军械工程学院 | A kind of intelligent protection device of distribution box and the distribution box with intelligent protection function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202696515U (en) * | 2012-05-04 | 2013-01-23 | 成都掌握移动信息技术有限公司 | Shunt excitation direct current motor controller with large starting torque |
| CN202696514U (en) * | 2012-04-26 | 2013-01-23 | 成都智利达科技有限公司 | Series-resistor starting controller of shunting exited DC motor |
| CN204179969U (en) * | 2014-11-07 | 2015-02-25 | 成都美益达医疗科技有限公司 | A kind of motor start circuit of medical centrifuge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686577A (en) * | 1992-08-28 | 1994-03-25 | Aisin Seiki Co Ltd | Motor control unit for automobile power seat |
| DE102009047163A1 (en) * | 2009-11-26 | 2011-06-01 | Robert Bosch Gmbh | Circuit arrangement for a starting device |
-
2014
- 2014-11-07 CN CN201410623884.6A patent/CN104300841B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202696514U (en) * | 2012-04-26 | 2013-01-23 | 成都智利达科技有限公司 | Series-resistor starting controller of shunting exited DC motor |
| CN202696515U (en) * | 2012-05-04 | 2013-01-23 | 成都掌握移动信息技术有限公司 | Shunt excitation direct current motor controller with large starting torque |
| CN204179969U (en) * | 2014-11-07 | 2015-02-25 | 成都美益达医疗科技有限公司 | A kind of motor start circuit of medical centrifuge |
Non-Patent Citations (1)
| Title |
|---|
| 浅谈时间继电器在电动机控制电路中的应用;李刚峰等;《装备制造技术》;20100515(第5期);第182-183、191页 * |
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| Publication number | Publication date |
|---|---|
| CN104300841A (en) | 2015-01-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Motor starting circuit of medical centrifugal machine Effective date of registration: 20170122 Granted publication date: 20160817 Pledgee: Chengdu technology transfer (Group) Co., Ltd. Pledgor: CHENGDU MEIYIDA MEDICAL TECHNOLOGY CO., LTD. Registration number: 2017510000007 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171218 Granted publication date: 20160817 Pledgee: Chengdu technology transfer (Group) Co., Ltd. Pledgor: CHENGDU MEIYIDA MEDICAL TECHNOLOGY CO., LTD. Registration number: 2017510000007 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Motor starting circuit of medical centrifugal machine Effective date of registration: 20171221 Granted publication date: 20160817 Pledgee: Chengdu technical transformation incubator management Co., Ltd. Pledgor: CHENGDU MEIYIDA MEDICAL TECHNOLOGY CO., LTD. Registration number: 2017510000092 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190131 Granted publication date: 20160817 Pledgee: Chengdu technical transformation incubator management Co., Ltd. Pledgor: CHENGDU MEIYIDA MEDICAL TECHNOLOGY CO., LTD. Registration number: 2017510000092 |