CN203416235U - Time-delay circuit - Google Patents
Time-delay circuit Download PDFInfo
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- CN203416235U CN203416235U CN201320546238.5U CN201320546238U CN203416235U CN 203416235 U CN203416235 U CN 203416235U CN 201320546238 U CN201320546238 U CN 201320546238U CN 203416235 U CN203416235 U CN 203416235U
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Abstract
The utility model brings forward a time-delay circuit which comprises a first circuit and a second circuit which are connected in parallel, wherein the first circuit contains a blower fan relay coil, a starting switch and an intermediate relay normally-closed contact which are successively connected in series; the second circuit contains an intermediate relay coil, a stop switch, a time relay coil and a time relay normally-closed contact; the intermediate relay coil, the time relay normally-closed contact and the stop switch are successively connected in series; and the time relay coil is connected in parallel to the intermediate relay coil and the time relay normally-closed contact. The utility model provides a time-delay circuit which is suitable for most control systems and has advantages of simple structure, small size, safety, reliability and the like.
Description
Technical field
The utility model relates to circuit control technology field, relates in particular to a kind of delay circuit.
Background technology
Along with socioeconomic fast development, hommization control system is also more and more subject to people's high praise, in industrial production and life, all needs to use delay circuit.For example: during dust on removing dust filtering device filter bag, the delayed-breaking-off function needing.And common delay circuit is mainly realized delay function by the time relay.
The major function of the time relay is a kind of performer in controlling as simple program, starts timing after it has accepted enabling signal, the action that after timing finishes, its working contact is opened or closed, thus promote follow-up circuit working.In general, the delay performance of the time relay can regulate in the scope of design, thus the convenient delay time length of adjusting it.
Conventionally in life, delay control circuit more complicated, in use operation is comparatively loaded down with trivial details, and the inadequate hommization of some delay circuit, line are loaded down with trivial details.
Therefore, be badly in need of in the market the delay circuit of a kind of simple, safety of design, hommization.
Utility model content
The utility model provides a kind of delay circuit, is applicable in most of control system, have simple in structure, volume is little, the advantage such as safe and reliable.
The utility model provides a kind of delay circuit, comprising: the first circuit and second circuit, and described the first circuit is in parallel with described second circuit;
Wherein, described the first circuit comprises: blower fan relay coil, starting switch and auxiliary relay normally-closed contact, and described blower fan relay coil, described starting switch and described auxiliary relay normally-closed contact are connected successively;
Described second circuit comprises: auxiliary relay coil, shutdown switch, time relay coil and time relay normally-closed contact, described auxiliary relay coil, described time relay normally-closed contact and described shutdown switch are connected successively, and described time relay coil is in parallel with described auxiliary relay coil and described time relay normally-closed contact.
The delay circuit the utility model proposes, described the first circuit further comprises: blower fan relay normally open contact, described blower fan relay normally open contact is in parallel with described starting switch.
The delay circuit the utility model proposes, described second circuit further comprises: auxiliary relay normally opened contact, described auxiliary relay normally opened contact is in parallel with described shutdown switch.
The delay circuit the utility model proposes, described time relay coil is energization delay relay coil.
The delay circuit the utility model proposes, realizes the function of delay cut-off by the time relay, not only simple in structure, volume is little, and safe and reliable.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model delay circuit.
Embodiment
In conjunction with following specific embodiments and the drawings, the utility model is described in further detail.Implement process of the present utility model, condition, experimental technique etc., except the content of mentioning specially below, be universal knowledege and the common practise of this area, the utility model is not particularly limited content.
As shown in Figure 1, the delay circuit the utility model proposes comprises: the first circuit 1 and second circuit 2, the first circuit 1 are in parallel with second circuit 2.In the utility model, connect and be electrical connection.
Wherein, the first circuit 1 comprises: blower fan relay coil KM1, starting switch SB1 and auxiliary relay normally-closed contact KM2, and blower fan relay coil KM1, starting switch SB1 and auxiliary relay normally-closed contact KM2 connect successively;
The delay circuit the utility model proposes, the first circuit 1 further comprises: blower fan relay normally open contact KM1, blower fan relay normally open contact KM1 is in parallel with starting switch SB1.
The delay circuit the utility model proposes, second circuit 2 further comprises: auxiliary relay normally opened contact KM2, auxiliary relay normally opened contact KM2 is in parallel with shutdown switch SB2.
In the delay circuit the utility model proposes, time relay coil KT is energization delay relay coil.After energization delay relay coil electricity, energization delay relay normally-closed contact remains closed until disconnect after the time of setting.
The delay circuit the utility model proposes, operating process:
When pressing starting switch SB1:
The blower fan relay coil KM1 adhesive of switching on, blower fan relay normally open contact KM1 is closed, makes starting switch SB1 self-locking, keeps blower fan relay coil KM1 energising adhesive.
When pressing shutdown switch SB2:
Auxiliary relay coil KM2 and time relay coil KT energising, auxiliary relay normally-closed contact KM2 disconnects, and makes blower fan relay coil KM1 dead electricity; The closed KM2 of auxiliary relay normally opened contact, makes shutdown switch SB2 self-locking; Time relay normally-closed contact KT disconnects after the time of setting, make auxiliary relay coil KM2 dead electricity, auxiliary relay normally-closed contact KM2, auxiliary relay normally opened contact KM2 reset, time relay coil KT dead electricity, and time relay normally-closed contact KT resets.
Embodiment 1:
In the present embodiment, the delay circuit the utility model proposes is applied in dust filtering device.
Dust filtering device, in the process of feeding intake, easily produces dust, and air is caused to larger impact.Dust filtering device is set above dog-house, the air-flow that can utilize blower fan running to produce, by adsorbing powder dust to filter bag.Along with the increase of filtration time, the long-pending dust being attached on filter bag is more and more, has increased the resistance of filter bag, causes processing air quantity to reduce gradually.For normal operation, control resistance within the specific limits, must carry out deashing to filter bag.And in case of the raw material of easily water suction jets not in time, after dissolving for a long time, can affect the effect of winding-up next time.Therefore do the circuit of a time delay winding-up program and control, what can make like this to jet on filter bag is more thorough, thereby reduces the waste of raw material, guarantees the quality of product.
In the present embodiment, utilize the pulse daley of blowing mouth, the dust being adsorbed onto on filter bag is blown again to dog-house.Avoid waste, the pollution of dust to environment of raw material, and different material is when drop into, the dust adsorbing on filter bag drops and causes the pollution to raw material.
In the present embodiment, time relay KT is energization delay relay, when operating personnel press starting switch SB1, blower fan relay coil KM1 energising, fan starting, dusty gas enters casing by air inlet, and the Purge gas after bag filtration is inhaled directly and is discharged by blower fan after filtration.During deashing, by pulse control instrument order, trigger each control valve unbalanced pulse valve, pulse control instrument is operatively connected to the normally opened contact place of the KT of the time relay, compressed air in gas bag is instantaneous enters filter bag through pulse valve to each hole ejection of injection tube, filter bag moment sharply expands, and makes the long-pending dust releasing that is attached to filter bag surface.The dust getting off clearly falls in dog-house.Make thus the long-pending dust being attached on filter bag periodically by pulse control instrument, control jetting deashing, Purge gas is normally passed through.When operating personnel press shutdown switch SB2, blower fan relay coil KM1 dead electricity, because inertia remains in operation, also has that dust is long-pending to be attached on filter bag after fan parking.Time relay normally-closed contact KT is the just automatic disconnection of time through setting after operating personnel press shutdown switch SB2, reaches the effect that makes pulse control instrument postpone power-off, continuation winding-up.
In the present embodiment, the time that energization delay relay is set was set according to the time of the coasting of blower fan, as long as guarantee that the time of energization delay relay setting is greater than the time of blower fan coasting.
Protection content of the present utility model is not limited to above embodiment.Do not deviating under the spirit and scope of utility model design, variation and advantage that those skilled in the art can expect are all included in the utility model, and take appending claims as protection range.
Claims (4)
1. a delay circuit, is characterized in that, comprising: the first circuit (1) and second circuit (2), and described the first circuit (1) is in parallel with described second circuit (2);
Wherein, described the first circuit (1) comprising: blower fan relay coil (KM1), starting switch (SB1) and auxiliary relay normally-closed contact (KM2), and described blower fan relay coil (KM1), described starting switch (SB1) and described auxiliary relay normally-closed contact (KM2) are connected successively;
Described second circuit (2) comprising: auxiliary relay coil (KM2), shutdown switch (SB2), time relay coil (KT) and time relay normally-closed contact (KT), described auxiliary relay coil (KM2), described time relay normally-closed contact (KT) and described shutdown switch (SB2) are connected successively, and described time relay coil (KT) is in parallel with described auxiliary relay coil (KM2) and described time relay normally-closed contact (KT).
2. delay circuit as claimed in claim 1, it is characterized in that, described the first circuit (1) further comprises: blower fan relay normally open contact (KM1), described blower fan relay normally open contact (KM1) is in parallel with described starting switch (SB1).
3. delay circuit as claimed in claim 1, it is characterized in that, described second circuit (2) further comprises: auxiliary relay normally opened contact (KM2), described auxiliary relay normally opened contact (KM2) is in parallel with described shutdown switch (SB2).
4. delay circuit as claimed in claim 1, is characterized in that, described time relay coil (KT) is energization delay relay coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546238.5U CN203416235U (en) | 2013-09-03 | 2013-09-03 | Time-delay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546238.5U CN203416235U (en) | 2013-09-03 | 2013-09-03 | Time-delay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416235U true CN203416235U (en) | 2014-01-29 |
Family
ID=49979090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546238.5U Expired - Lifetime CN203416235U (en) | 2013-09-03 | 2013-09-03 | Time-delay circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203416235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN110242864A (en) * | 2019-07-29 | 2019-09-17 | 广西玉柴机器股份有限公司 | A kind of engine antirust solution added automatically system |
-
2013
- 2013-09-03 CN CN201320546238.5U patent/CN203416235U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
| CN110242864A (en) * | 2019-07-29 | 2019-09-17 | 广西玉柴机器股份有限公司 | A kind of engine antirust solution added automatically system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201502 No. 169 Jianding Road, Fengjing Town, Jinshan District, Shanghai Patentee after: Shanghai frontan animal health Limited by Share Ltd. Address before: 201502 No. 169 Jianding Road, Fengjing Town, Jinshan District, Shanghai Patentee before: SHANGHAI FRONTAN ANIMAL HEALTH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term |