CN203721637U - Composite switch - Google Patents
Composite switch Download PDFInfo
- Publication number
- CN203721637U CN203721637U CN201420007716.XU CN201420007716U CN203721637U CN 203721637 U CN203721637 U CN 203721637U CN 201420007716 U CN201420007716 U CN 201420007716U CN 203721637 U CN203721637 U CN 203721637U
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- CN
- China
- Prior art keywords
- contact unit
- control
- electrically connected
- transfer contact
- magnetic latching
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Abstract
The utility model discloses a composite switch. The composite switch comprises a shell, a silicon controlled rectifier and a magnetic latching relay; the silicon controlled rectifier is connected in parallel with the magnetic latching relay; the magnetic latching relay includes a magnetic latching coil and a normally open contact which is used for electrically connecting with alternating current; and the magnetic latching coil is electrically connected with a polarity conversion circuit. By adopting the above technical scheme, the magnetic latching coil is electrically connected with the polarity conversion circuit, such that the polarity of the magnetic latching coil when the magnetic latching coil is connected into the alternating current can be controlled through controlling the pull-in of the magnetic latching coil, and therefore, zero passage cutting-off or conduction of the current can be realized.
Description
Technical field
The utility model relates to a kind of switchgear of drop-out current, and more particularly, it relates to a kind of combination switch.
Background technology
Combination switch refers to and can under the condition of normal galvanic circle, close, the switchgear of carrying and drop-out current.Existing combination switch comprises housing, controllable silicon and relay, and controllable silicon and relay are all arranged in housing, and the structure of employing is by controllable silicon and relay and connects conventionally, as shown in Figure 2.At present general implementation method is: during input, at the voltage zero-cross moment zero cross fired controllable silicon in parallel with relay or contactor, after stablizing again by relay or contactor adhesive conducting; And while cutting out, first by controlled silicon conducting, then relay or contacts of contactor are disconnected, while avoiding relay or contactor to disconnect, produce electric arc, finally at current zero-crossing point place controllable silicon, turn-off, thereby realize current over-zero, cut off, make combination switch there is silicon control zero-cross switching in the moment switching on and off, and there is magnetic maintained switch zero-power during normal connection.Combination switch has without remarkable advantages such as impact, low-power consumption, high life, and alternative contactor or thyristor switch, be widely used in low-pressure reactive compensation field.When requiring very low power consumption, can adopt magnetic latching relay.It does not need continuous power supply, and enough large pulse voltage only need to be provided, and just can guarantee product adhesive.But during line design, need provide forward and reverse voltage, thereby change its contacts status, this respect also urgently improves.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of combination switch, and this kind of switch reaches zero passage cut-out or the conducting to electric current by controlling the polarity of magnetic latching relay.
For achieving the above object, the utility model provides following technical scheme:
A kind of combination switch, comprise housing, controllable silicon and magnetic latching relay, described controllable silicon is in parallel with magnetic latching relay, and described magnetic latching relay comprises retaining coil magnetic and the normally opened contact for being electrically connected to alternating current, and described retaining coil magnetic is electrically connected with polarity switching.
By adopting technique scheme, thereby retaining coil magnetic is electrically connected to polarity switching by controlling the adhesive of retaining coil magnetic, and then controls the polarity in retaining coil magnetic incoming transport electricity, realizes the zero passage of electric current and cuts off or conducting.
Further improvement as technique scheme: described polarity switching comprises control chip, the first control relay, the second control relay and diode, described the first control relay comprises control coil No. one, the first transfer contact unit and the second transfer contact unit, a described control coil is in parallel with control chip by diode, described retaining coil magnetic is series between the first transfer contact unit and the second transfer contact unit, the other end of described the first transfer contact unit and the second relative retaining coil magnetic in transfer contact unit is connected to the both positive and negative polarity of DC power supply after being electrically connected to, described the second control relay comprises No. two control coils and No. two normally opened contacts, described No. two controller coils are electrically connected to interlock with No. two normally opened contacts by diodes in parallel after control chip.
By adopting technique scheme, first, the operating voltage of the second control relay is all 5V direct current, therefore do not need to increase in addition drive circuit, directly by control chip, controlled, effectively simplified circuit and reduced power consumption, the second control relay is set and strengthens the controllability to DC circuit, the first control relay is set as the main element of magnetic latching relay polarity conversion, No. one control coil is used for accepting the pulse signal from control chip, the first transfer contact unit is set and is connected retaining coil magnetic with the second transfer contact unit, and DC power supply is connected, at the polarity chron that need to change magnetic latching relay, only need control chip output pulse signal to change first, the connection state of the second transfer contact unit, can reach the object of magnetic latching relay conversion, adopt control chip to reach and control the hommization more of magnetic latching relay polarity by control relay, intelligent.
The utility model is further set to: described the first transfer contact unit and the second transfer contact unit include a normally opened contact and a normally-closed contact, described retaining coil magnetic is series between the common port of two normally opened contacts, the normally opened contact of described any transfer contact unit is electrically connected on a utmost point of DC power supply after being electrically connected to the normally-closed contact of another transfer contact unit, after normally-closed contact is electrically connected to the normally-closed contact of another transfer contact unit, be electrically connected to another utmost point of DC power supply.
By adopting technique scheme, after No. two control coil adhesives, make DC power supply circuit conducting, if No. one control coil obtains after low level adhesive, the normally opened contact of two transfer contact unit all electric closure, retaining coil magnetic obtains electric rear forward adhesive, its normally opened contact is closed, AC power circuit conducting; If No. one control coil obtains high level, the normally-closed contact of two transfer contact unit connects retaining coil magnetic, is negative direct voltage like this to what apply on retaining coil magnetic, after retaining coil magnetic dead electricity, disconnects, and its contact dead electricity disconnects.
The utility model is further set to: between the both positive and negative polarity of described DC power supply, be in series with diode, the negative pole of described diode is towards the positive pole of DC power supply.
By adopting technique scheme, thereby between the both positive and negative polarity of DC power supply, series diode effectively prevents that DC power supply reverse-conducting from affecting the normal work of change-over circuit.
The utility model is further set to: described control chip is HT46R232.
By adopting technique scheme, this kind of chip is eight high-performance reduced instruction set computer control chips, special in needing the product design of mould/number conversion, is widely used powerful.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model combination switch embodiment;
Fig. 2 is the connection layout between controllable silicon and magnetic latching relay.
Reference numeral:
1, control chip; 2, a control coil; 3, No. two control coils; 4, retaining coil magnetic; G, controllable silicon; S1, the first transfer contact unit; S2, the second transfer contact unit; KM1, the first control relay; KM2, the second control relay; J1, magnetic latching relay.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model combination switch embodiment is described further.
A kind of combination switch, comprise controllable silicon G and magnetic latching relay J1, described controllable silicon G is in parallel with magnetic latching relay J1, and described magnetic latching relay J1 comprises retaining coil magnetic 4 and the normally opened contact for being electrically connected to alternating current, and described retaining coil magnetic 4 is electrically connected with polarity switching.Described polarity switching comprises control chip 1, the first control relay KM1, the second control relay KM2, diode and magnetic latching relay J1, described the first control relay KM1 comprises control coil 2 No. one, the first transfer contact unit s1 and the second transfer contact unit s2, a described control coil 2 is in parallel with control chip 1 by diode, described retaining coil magnetic 4 is series between the first transfer contact unit s1 and the second transfer contact unit s2, the other end of described the first transfer contact unit s1 and the relative retaining coil magnetic 4 of the second transfer contact unit s2 is connected to the both positive and negative polarity of DC power supply after being electrically connected to, described the second control relay KM2 comprises No. two control coils 3 and No. two normally opened contacts, described No. two controller coils are electrically connected to interlock with No. two normally opened contacts by diodes in parallel after control chip 1.
By adopting technique scheme, thereby retaining coil magnetic 4 is electrically connected to polarity switching by controlling the adhesive of retaining coil magnetic 4, and then controls the polarity in retaining coil magnetic 4 incoming transport electricity, realizes the zero passage of electric current and cuts off or conducting.First, the operating voltage of the second control relay KM2 is all 5V direct current, therefore do not need to increase in addition drive circuit, directly by control chip 1, controlled, effectively simplified circuit, the second control relay KM2 is set and strengthens the controllability to DC circuit, the first control relay KM1 is set as the main element of magnetic latching relay J1 polarity conversion, No. one control coil 2 is used for accepting the pulse signal from control chip 1, the first transfer contact unit s1 is set and is connected retaining coil magnetic 4 with the second transfer contact unit s2, and DC power supply is connected, at the polarity chron that need to change magnetic latching relay J1, only need control chip 1 output pulse signal to change first, the connection state of the second transfer contact unit s2, can reach the object of magnetic latching relay J1 conversion, adopt control chip 1 to reach and control the hommization more of magnetic latching relay J1 polarity by control relay, intelligent.
Described the first transfer contact unit s1 comprises a normally opened contact and the normally-closed contact being comprised of contact 2,3,4, described the second transfer contact unit s2 includes a normally opened contact and the normally-closed contact that contact 7,6,5 forms, described retaining coil magnetic 4 is series at the common port of two normally opened contacts, be between contact 2 and contact 7, under reset condition, moving contact 2 and fixed contact 3 and contact 7 and contact 6 are all in closure state, contact 3 is connected with the negative pole of DC power supply after being electrically connected to contact 5, and contact 4 is connected with the positive pole of DC power supply after being electrically connected to contact 6.After No. two control coil 3 adhesives, make DC power supply circuit conducting, if No. one control coil 2 obtains after low level adhesive, the normally opened contact of two transfer contact unit all electric closure, retaining coil magnetic 4 electric rear forward adhesive, its normally opened contact is closed, AC power circuit conducting; If No. one control coil 2 obtains high level, the normally-closed contact of two transfer contact unit connects retaining coil magnetic 4, is negative direct voltage like this to what apply on retaining coil magnetic 4, after retaining coil magnetic 4 dead electricity, disconnects, and its contact dead electricity disconnects.
The present embodiment be take 12V direct current as example, under normality, the normally-closed contact of two transfer contact unit is all closed, normally opened contact all disconnects, in the situation of control coil 2 not adhesives, magnetic latching relay J1 is in forward on-state, when magnetic latching relay J1 contact needs closure, the PC1 of shilling control chip 1 end is output as 0, and the normally-closed contact of the first control relay KM1 is linked on retaining coil magnetic 4; Making PA3 end be output as 1, No. two control coil 3 must be electric again, thereby makes the normally opened contact of the second control relay KM2 closed, make the DC loop conducting of 12V, this adds positive 12V direct voltage to retaining coil magnetic 4, and the closing of contact of magnetic latching relay J1, after the steady closure of contact, make PA3 end be output as 0, K2 coil blackout, disconnects its contact, then makes PC1 end be output as 0, the first control relay KM1 coil blackout, makes contact reply normality.When magnetic latching relay J1 contact need to disconnect, the PC1 end of Schilling control chip 1 is output as 1, the normally opened contact of the first control relay KM1 is linked on retaining coil magnetic 4, make again PA3 end be output as 1, No. two control coils 3 must be electric, thereby make the normally opened contact of the second control relay KM2 closed, makes the conducting of 12V DC loop, give like this add-12V of retaining coil magnetic 4 direct voltage, make its disconnection.After magnetic latching relay J1 contact disconnects, make equally the first control relay KM1, K2 coil blackout, contact returns to normal.
Between the both positive and negative polarity of described DC power supply, be in series with diode, the negative pole of described diode is towards the positive pole of DC power supply.By adopting technique scheme, thereby between the both positive and negative polarity of DC power supply, series diode effectively prevents that DC power supply reverse-conducting from affecting the normal work of change-over circuit.
It should be noted that described control chip 1 is HT46R232, this kind of chip is eight high-performance reduced instruction set computer control chips 1, special in needing the product design of mould/number conversion, is widely used powerful.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a combination switch, comprise housing, controllable silicon and magnetic latching relay, described controllable silicon is in parallel with magnetic latching relay, it is characterized in that: described magnetic latching relay comprises retaining coil magnetic and the normally opened contact for being electrically connected to alternating current, and described retaining coil magnetic is electrically connected with polarity switching.
2. combination switch according to claim 1, it is characterized in that: described polarity switching comprises control chip, the first control relay, the second control relay and diode, described the first control relay comprises control coil No. one, the first transfer contact unit and the second transfer contact unit, a described control coil is in parallel with control chip by diode, described retaining coil magnetic is series between the first transfer contact unit and the second transfer contact unit, the other end of described the first transfer contact unit and the second relative retaining coil magnetic in transfer contact unit is connected to the both positive and negative polarity of DC power supply after being electrically connected to, described the second control relay comprises No. two control coils and No. two normally opened contacts, described No. two controller coils are electrically connected to interlock with No. two normally opened contacts by diodes in parallel after control chip.
3. combination switch according to claim 2, it is characterized in that: described the first transfer contact unit and the second transfer contact unit include a normally opened contact and a normally-closed contact, described retaining coil magnetic is series between the common port of two normally opened contacts, the normally opened contact of described any transfer contact unit is electrically connected on a utmost point of DC power supply after being electrically connected to the normally-closed contact of another transfer contact unit, after normally-closed contact is electrically connected to the normally-closed contact of another transfer contact unit, be electrically connected to another utmost point of DC power supply.
4. combination switch according to claim 3, is characterized in that: between the both positive and negative polarity of described DC power supply, be in series with diode, the negative pole of described diode is towards the positive pole of DC power supply.
5. according to the combination switch described in claim 2 or 3 or 4, it is characterized in that: described control chip is HT46R232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007716.XU CN203721637U (en) | 2014-01-04 | 2014-01-04 | Composite switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007716.XU CN203721637U (en) | 2014-01-04 | 2014-01-04 | Composite switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721637U true CN203721637U (en) | 2014-07-16 |
Family
ID=51160774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420007716.XU Expired - Fee Related CN203721637U (en) | 2014-01-04 | 2014-01-04 | Composite switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158520A (en) * | 2014-07-31 | 2014-11-19 | 米技电子电器(上海)有限公司 | Closed-loop control civilian infrared heat-radiating electric furnace adopting combination switch, and control method thereof |
| CN117637392A (en) * | 2024-01-26 | 2024-03-01 | 深圳市德兰明海新能源股份有限公司 | Electromagnetic relay driving circuit and electronic apparatus |
-
2014
- 2014-01-04 CN CN201420007716.XU patent/CN203721637U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158520A (en) * | 2014-07-31 | 2014-11-19 | 米技电子电器(上海)有限公司 | Closed-loop control civilian infrared heat-radiating electric furnace adopting combination switch, and control method thereof |
| CN117637392A (en) * | 2024-01-26 | 2024-03-01 | 深圳市德兰明海新能源股份有限公司 | Electromagnetic relay driving circuit and electronic apparatus |
| CN117637392B (en) * | 2024-01-26 | 2024-04-19 | 深圳市德兰明海新能源股份有限公司 | Electromagnetic relay driving circuit and electronic apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170104 |