CN204784341U - Safe type controller of electromagnetic braking ware - Google Patents
Safe type controller of electromagnetic braking ware Download PDFInfo
- Publication number
- CN204784341U CN204784341U CN201520459209.4U CN201520459209U CN204784341U CN 204784341 U CN204784341 U CN 204784341U CN 201520459209 U CN201520459209 U CN 201520459209U CN 204784341 U CN204784341 U CN 204784341U
- Authority
- CN
- China
- Prior art keywords
- inductive load
- resistance
- operational amplifier
- electromagnetic brake
- safety controller
- 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.)
- Withdrawn - After Issue
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Abstract
(B, ) the utility model discloses a safe type controller of electromagnetic braking ware, including the inductive load (L) of electromagnetic braking ware, inductive load (L1) both ends are connected to rectifier bridge (B's) output, inductive load (L1) is gone up to establish ties there is field effect transistor (Q1), the parallelly connected freewheeling diode (D1) that has is gone up to inductive load (L), and freewheeling diode's (D1) negative pole links to each other with the positive output of rectifier bridge (B) end, it has steady voltage control circuit still to connect in parallel on the inductive load (L). The utility model discloses a back -emf problem of electromagnetic braking ware can effectively be solved to the structure, and the stopper malfunction is avoided in stability that moreover can the maintaining voltage. (B, )
Description
Technical field
the utility model relates to a kind of electromagnetic brake, particularly a kind of safety controller of electromagnetic brake.
Background technique
actuator is the Important Components controlling electromagnetic brake opening and closing, in the prior art, generally all do not have freewheeling circuit in divider chain, if when load is larger inductive load, the induction counterelectromotive force produced can smash less device withstand voltage in circuit thus damage circuit.And because electrical network exists certain voltage functuation, unstable voltage will have influence on the adhesive of break, misoperation possibly, thus causes serious safety problem.
Model utility content
the purpose of this utility model is, provides a kind of safety controller of electromagnetic brake.Its structure effectively can solve the back-emf problem of electromagnetic brake, and can ME for maintenance stable, avoids break misoperation.
the technical solution of the utility model: the safety controller of electromagnetic brake, is characterized in: the inductive load comprising electromagnetic brake, inductive load two ends are connected to the output terminal of rectifier bridge, and described inductive load is in series with field effect transistor; Described inductive load is parallel with fly-wheel diode, and the negative pole of fly-wheel diode is connected with the cathode output end of rectifier bridge; Described inductive load is also parallel with controlling circuit of voltage regulation.
in the safety controller of aforesaid electromagnetic brake, described controlling circuit of voltage regulation comprises operational amplifier, the positive input of operational amplifier to be connected cathode rectifier output terminal by the 3rd resistance and the 5th resistance successively one end with inductive load is connected, and the reverse input end of described operational amplifier is connected with the other end of inductive load with the 6th resistance by the 4th resistance successively; The reverse input end of described operational amplifier is also connected with the output terminal of operational amplifier by the second resistance.
in the safety controller of aforesaid electromagnetic brake, the output terminal of described operational amplifier is successively by ground connection after the first electric capacity and the 7th resistance.
in the safety controller of aforesaid electromagnetic brake, described second resistor in parallel has the 3rd electric capacity.
in the safety controller of aforesaid electromagnetic brake, the positive input of described operational amplifier is by ground connection after the first resistance, and described first resistor in parallel has the second electric capacity.
in the safety controller of aforesaid electromagnetic brake, output terminal and the fet gate of described operational amplifier are all connected to single-chip microcomputer.
the 4th electric capacity is connected with between two output terminals of described rectifier bridge.
compared with prior art, the utility model carries out afterflow by fly-wheel diode to after inductive load power-off, thus can prevent device failure.And the utility model also have passed controlling circuit of voltage regulation and makes the voltage at inductive load two ends keep stable, not with power network fluctuation, the reliable adhesive of break can be made, can not the misoperation because of voltage ripple of power network, therefore more safe and reliable.
Accompanying drawing explanation
fig. 1 is electrical block diagram of the present utility model;
fig. 2 is the structural representation of the utility model controlling circuit of voltage regulation.
Embodiment
below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation limited the utility model.
embodiment.The safety controller of electromagnetic brake, as shown in Figure 1: the inductive load L comprising electromagnetic brake, inductive load L1 two ends are connected to the output terminal of rectifier bridge B, and described inductive load L1 is in series with field effect transistor Q1; Described inductive load L is parallel with sustained diode 1, and the negative pole of sustained diode 1 is connected with the cathode output end of rectifier bridge B; Described inductive load L is also parallel with controlling circuit of voltage regulation.
described controlling circuit of voltage regulation structure as shown in Figure 2, comprise operational amplifier U, the positive input of operational amplifier U to be connected rectifier bridge B cathode output end by the 3rd resistance R3 and the 5th resistance R5 successively one end with inductive load L is connected, and the reverse input end of described operational amplifier U is connected with the other end of inductive load L with the 6th resistance R6 by the 4th resistance R4 successively; The reverse input end of described operational amplifier U is also connected with the output terminal of operational amplifier U by the second resistance R2.The output terminal of described operational amplifier U is successively by ground connection after the first electric capacity C1 and the 7th resistance R7.Described second resistance R2 is parallel with the 3rd electric capacity C3.The positive input of described operational amplifier U, by ground connection after the first resistance R1, described first resistance R1 is parallel with the second electric capacity C2.Output terminal and the field effect transistor Q1 grid of described operational amplifier U are all connected to single-chip microcomputer.The 4th electric capacity C4 is connected with between two output terminals of described rectifier bridge B.
working principle of the present utility model: under the effect of controlling circuit of voltage regulation, can keep the voltage stabilization outputted on inductive load.Coordinate the use of single-chip microcomputer again, output voltage can be made adjustable.As according to formula P=U2/R, break is U at startup transient voltage, and resistance is R, and power is P, and after starting 2S, voltage is reduced to U automatically, and power then becomes P, saves the electric energy of 75%.
the input voltage of excitation controller of the present utility model is that combined-voltage is general, and scope can be AC85C-AC265V and DC100V-DC300V.
Claims (7)
1. the safety controller of electromagnetic brake, is characterized in that: the inductive load (L) comprising electromagnetic brake, and inductive load (L1) two ends are connected to the output terminal of rectifier bridge (B), described inductive load (L1) are in series with field effect transistor (Q1); Described inductive load (L) is parallel with fly-wheel diode (D1), the negative pole of fly-wheel diode (D1) is connected with the cathode output end of rectifier bridge (B); Described inductive load (L) is also parallel with controlling circuit of voltage regulation.
2. the safety controller of electromagnetic brake according to claim 1, it is characterized in that: described controlling circuit of voltage regulation comprises operational amplifier (U), the positive input of operational amplifier (U) to be connected rectifier bridge (B) cathode output end by the 3rd resistance (R3) and the 5th resistance (R5) successively one end with inductive load (L) is connected, and the reverse input end of described operational amplifier (U) passes through the 4th resistance (R4) successively and is connected with the other end of inductive load (L) with the 6th resistance (R6); The reverse input end of described operational amplifier (U) is also connected with the output terminal of operational amplifier (U) by the second resistance (R2).
3. the safety controller of electromagnetic brake according to claim 2, is characterized in that: the output terminal of described operational amplifier (U) is successively by the first electric capacity (C1) and the 7th resistance (R7) ground connection afterwards.
4. the safety controller of electromagnetic brake according to claim 2, is characterized in that: described second resistance (R2) is parallel with the 3rd electric capacity (C3).
5. the safety controller of electromagnetic brake according to claim 2, is characterized in that: the positive input of described operational amplifier (U), by the first resistance (R1) ground connection afterwards, described first resistance (R1) is parallel with the second electric capacity (C2).
6. the safety controller of the electromagnetic brake according to the arbitrary claim of claim 2 to 5, is characterized in that: output terminal and field effect transistor (Q1) grid of described operational amplifier (U) are all connected to single-chip microcomputer.
7. the safety controller of electromagnetic brake according to claim 1, is characterized in that: be connected with the 4th electric capacity (C4) between two output terminals of described rectifier bridge (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459209.4U CN204784341U (en) | 2015-06-30 | 2015-06-30 | Safe type controller of electromagnetic braking ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520459209.4U CN204784341U (en) | 2015-06-30 | 2015-06-30 | Safe type controller of electromagnetic braking ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784341U true CN204784341U (en) | 2015-11-18 |
Family
ID=54524395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520459209.4U Withdrawn - After Issue CN204784341U (en) | 2015-06-30 | 2015-06-30 | Safe type controller of electromagnetic braking ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912976A (en) * | 2015-06-30 | 2015-09-16 | 浙江玛拓驱动设备有限公司 | Safety type controller of electromagnetic brake |
-
2015
- 2015-06-30 CN CN201520459209.4U patent/CN204784341U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912976A (en) * | 2015-06-30 | 2015-09-16 | 浙江玛拓驱动设备有限公司 | Safety type controller of electromagnetic brake |
| CN104912976B (en) * | 2015-06-30 | 2017-08-29 | 浙江玛拓驱动设备有限公司 | A kind of safety controller of electromagnetic brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170829 |