CN2177281Y - DC holding quick electromagent - Google Patents
DC holding quick electromagent Download PDFInfo
- Publication number
- CN2177281Y CN2177281Y CN 94202818 CN94202818U CN2177281Y CN 2177281 Y CN2177281 Y CN 2177281Y CN 94202818 CN94202818 CN 94202818 CN 94202818 U CN94202818 U CN 94202818U CN 2177281 Y CN2177281 Y CN 2177281Y
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- CN
- China
- Prior art keywords
- power supply
- switch
- electromagnet
- current circuit
- serially connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a direct current holding electromagnet. The electromagnet adopts the power-off fast response by the method that the residual magnetism can be eliminated by the reverse excitation at the power-off time, and the follow current loop can be cut off at the power-off time. A coil is connected in parallel with a power-off reverse excitation power supply, and the follow current loop is connected in series with a switch.
Description
The utility model relates to a kind of direct current maintenance electromagnet, can be widely used in traction, braking, valve, the electromagnetic switch (for example AC/DC contactor etc.), it comprises iron core, coil, continuous current circuit and power supply four parts, it is characterized in that described coil also and be connected to reverse field power supply and in described continuous current circuit, be serially connected with the outage be the switch of intermittent current.Belong to low-voltage electrical apparatus and electronic technology field.
Though existing direct current keeps electromagnet that the outstanding advantage of energy-saving material-saving is arranged, and remanent magnetism difficulty and the shortcoming of cutting off the power supply and lagging behind are arranged.
In order to overcome remanent magnetism and hysteresis shortcoming effectively, the present invention proposes reverse excitation and go to remanent magnetism and outage back to cut off the technical scheme of continuous current circuit with switch.The particular content of these technical schemes is described below in conjunction with embodiment.
Figure 1 shows that the comprehensive embodiment of technique scheme 1
Fig. 2 is the embodiment 2 of string contact switch in the continuous current circuit
Fig. 3 is that the switch of continuous current circuit is the embodiment 3 of power supply contacts of contactor
Referring to Fig. 1, wherein ［ 1 ］ is that described direct current keeps power supply, and the electromagnet that has also has startup power supply ［ 3 ］ in parallel with it.［ 2 ］ be described magnet spool, ［ 4 ］ are fly-wheel diodes, and serial connection switch ［ 5 ］ back and coil ［ 2 ］ constitute the continuous current circuit of a uniqueness.Switch ［ 5 ］ can be that mechanical switch is a contact switch, also can be that electronic switch is a noncontacting switch.After keeping power supply ［ 1 ］ outage, switch ［ 5 ］ disconnects so that cut off continuous current circuit thereupon.Closure when switch ［ 5 ］ is given electricity at power supply ［ 1 ］, ［ 3 ］ does not start and afterflow when keeping thereby do not influence.
Electric capacity ［ 6 ］ can be recharged when starting and keep, it by be connected on respectively switch ［ 9 ］ on electric capacity ［ 6 ］ both positive and negative polarity, ［ 10 ］ with coil ［ 2 ］ thereby and connect and constitute a reverse field power supply, promptly after keeping power supply ［ 1 ］ dead electricity, switch ［ 9 ］, ［ 10 ］ closure, coil ［ 2 ］ has obtained a reverse field power supply power supply, and remanent magnetism is eliminated.For fear of the reverse remanent magnetism of the excessive generation of reverse current, except control capacittance ［ 6 ］ size, can also in reverse field power supply loop, advance a resistance ［ 11 ］ by string, for example be serially connected in the top of electric capacity ［ 6 ］.Switch ［ 9 ］, ［ 10 ］ they are normally closed switchs, and promptly their disconnect when power supply ［ 1 ］, ［ 3 ］ are given electricity, when power supply ［ 1 ］, ［ 3 ］ all during dead electricity, and their closures.［ 9 ］, ［ 10 ］ both can be that mechanical switch also can be an electronic switch.Accurate in order to prevent discharging and recharging of electric capacity ［ 6 ］, electric capacity ［ 6 ］ upper and lower has been gone here and there non-return diode ［ 7 ］, ［ 8 ］ respectively, and then is connected on the fly-wheel diode ［ 4 ］.
Circuit shown in Fig. 2 does not contain reverse energized circuit, it is suitable for air gap or alternate manner degaussing electromagnet, just in continuous current circuit, be connected in series a switch ［ 15 ］ in order to prevent to lag behind, it is a contact switch of often opening, i.e. its closure when power supply ［ 1 ］, ［ 3 ］ are given electricity, its disconnects during outage.
Fig. 3 is the special case of Fig. 2 embodiment.Be about to switch ［ 15 ］ and be incorporated on the relay or contactor of powering to described electromagnet, promptly be connected in series the normally opened contact ［ 14 ］ of a pair of relay or contactor between terminal ［ 12 ］, ［ 13 ］, ［ 14 ］ can be that main contacts also can be auxiliary contact.
The foregoing description 1 is a most preferred embodiment, and its result of use has reached intended purposes.
Claims (7)
1, a kind of direct current keeps electromagnet, comprises the power supply that direct current keeps, and coil, continuous current circuit and iron core four parts is characterized in that: described coil also is connected in the reverse field power supply of outage, the described continuous current circuit and is serially connected with switch.
2, according to the described electromagnet of claim 1, it is characterized in that: described reverse field power supply is the electric capacity that can be recharged when starting or keep.
3, according to claim 1 and 2 described electromagnet, it is characterized in that: in described reverse field power supply loop, be serially connected with normally closed switch.
4, according to claim 1 and 2 described electromagnet, it is characterized in that: described reverse field power supply is serially connected with resistance in the loop.
5, according to claim 1 and 2 described electromagnet, it is characterized in that: the upper and lower side of described capacitor is serially connected with non-return diode.
6, according to the described electromagnet of claim 1, it is characterized in that: the switch that is connected in series in the described continuous current circuit is a contact switch.
7, according to claim 1 and 6 described electromagnet, it is characterized in that: described contact switch is to the relay of electromagnet power supply or the normally opened contact in the contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202818 CN2177281Y (en) | 1994-02-17 | 1994-02-17 | DC holding quick electromagent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94202818 CN2177281Y (en) | 1994-02-17 | 1994-02-17 | DC holding quick electromagent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177281Y true CN2177281Y (en) | 1994-09-14 |
Family
ID=33822486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94202818 Expired - Fee Related CN2177281Y (en) | 1994-02-17 | 1994-02-17 | DC holding quick electromagent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177281Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730228A (en) * | 2013-12-06 | 2014-04-16 | 镇江新区科力迪机电科技有限公司 | Capacity discharge degaussing direct-current electromagnet |
| CN106796839A (en) * | 2014-10-22 | 2017-05-31 | 博格华纳公司 | Electromagnetic valve driver |
| CN113700774A (en) * | 2021-08-04 | 2021-11-26 | 苏州一光仪器有限公司 | Braking method for surveying and mapping instrument |
-
1994
- 1994-02-17 CN CN 94202818 patent/CN2177281Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730228A (en) * | 2013-12-06 | 2014-04-16 | 镇江新区科力迪机电科技有限公司 | Capacity discharge degaussing direct-current electromagnet |
| CN106796839A (en) * | 2014-10-22 | 2017-05-31 | 博格华纳公司 | Electromagnetic valve driver |
| US20170330667A1 (en) * | 2014-10-22 | 2017-11-16 | Borgwarner Inc. | Solenoid driver |
| CN113700774A (en) * | 2021-08-04 | 2021-11-26 | 苏州一光仪器有限公司 | Braking method for surveying and mapping instrument |
| CN113700774B (en) * | 2021-08-04 | 2023-06-16 | 苏州一光仪器有限公司 | Braking method for surveying instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |