CN203251083U - Controllable switch-containing arc-extinguishing apparatus - Google Patents
Controllable switch-containing arc-extinguishing apparatus Download PDFInfo
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- CN203251083U CN203251083U CN 201320297192 CN201320297192U CN203251083U CN 203251083 U CN203251083 U CN 203251083U CN 201320297192 CN201320297192 CN 201320297192 CN 201320297192 U CN201320297192 U CN 201320297192U CN 203251083 U CN203251083 U CN 203251083U
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Abstract
The utility model provides a controllable switch-containing arc-extinguishing apparatus which comprises an absorption circuit, a controllable switch and a direct-current mechanical switch. The direct-current mechanical switch is installed on a direct-current power supply circuit, and the absorption circuit is connected with two ends of the direct-current mechanical switch in parallel. The controllable switch is serially connected between the direct-current mechanical switch and the absorption circuit. The absorption circuit comprises parallel RC circuits. The absorption circuit is connected with two ends of a conventional direct-current mechanical switch in parallel, and the controllable switch is used to control timing sequence, and thus when the direct-current mechanical switch is disconnected, energy generated is adsorbed, thereby preventing a phenomenon of arc discharge and prolonging the service life of the direct-current mechanical switch.
Description
Technical field
The utility model relates to a kind of arc-control device, is specifically related to a kind of arc-control device that comprises gate-controlled switch.
Background technology
DC power supply, for example storage battery is widely used in the every field of people's productive life, is used to various instruments, instrument and the power supply of lighting apparatus even load.
In the direct current supply line that DC power supply and load form, usually adopt the break-make of mechanical switch control supply line.But mechanical switch is in the process that disconnects, because the existence of electric current, switch contact often produces arc light when separating, thus the useful life of reducing mechanical switch; And, when arc light is serious, can directly burn switch contact even breaking out of fire.Therefore, in order to reduce the arc light phenomenon, improve the useful life of dc switch, in the prior art, people need to use professional dc switch, still, the specialty dc switch has the expensive and larger shortcoming of volume, thus the popularizing of inconvenient professional dc switch.
The utility model content
Defective for the prior art existence, the utility model provides a kind of arc-control device that comprises gate-controlled switch, absorbing circuit is parallel to the two ends of conventional direct current mechanical switch, and control its sequential by gate-controlled switch, to absorb the energy that produces when the direct current mechanical switch disconnects, the arcing phenomenon that can avoid the direct current mechanical switch in the disconnection process, to occur, thus useful life of direct current mechanical switch prolonged.
The technical scheme that the utility model adopts is as follows:
The utility model provides a kind of arc-control device that comprises gate-controlled switch, and described arc-control device comprises absorbing circuit, gate-controlled switch and direct current mechanical switch; Described direct current mechanical switch is installed on the direct current supply line, and described absorbing circuit is installed in parallel the two ends of described direct current mechanical switch; Described gate-controlled switch is connected between described direct current mechanical switch and the described absorbing circuit; Described absorbing circuit is RC circuit in parallel.
Preferably, described direct current mechanical switch is installed in the main track side of described direct current supply line.
Preferably, described direct current mechanical switch is installed in the negative wire side of described direct current supply line.
Preferably, described direct current mechanical switch comprises the first direct current mechanical switch and the second direct current mechanical switch; Described the first direct current mechanical switch is installed in the main track side of described direct current supply line, and described the second direct current mechanical switch is installed in the negative wire side of described direct current supply line; Described gate-controlled switch comprises the first gate-controlled switch and the second gate-controlled switch; Described absorbing circuit comprises the first absorbing circuit and the second absorbing circuit;
Described the first absorbing circuit is installed in parallel the two ends of described the first direct current mechanical switch; Described the first gate-controlled switch is connected between described the first direct current mechanical switch and described the first absorbing circuit;
Described the second absorbing circuit is installed in parallel the two ends of described the second direct current mechanical switch; Described the second gate-controlled switch is connected between described the second direct current mechanical switch and described the second absorbing circuit.
The utility model also provides a kind of arc-suppressing method of the arc-control device based on comprising gate-controlled switch, may further comprise the steps:
S1, when described direct current mechanical switch was in off-state, controlling described gate-controlled switch was the one-way conduction state, the voltage of capacitor C is direct current supply voltage in the described RC circuit; Wherein, described one-way conduction state is direct current mechanical switch when disconnecting, and the direct current by the direct current mechanical switch is to the direction of absorbing circuit charging;
S2, the t1 moment, described direct current machinery switch closure; After the closure, the voltage of capacitor C consumes gradually by resistance R, and when reaching t2 during the moment, the voltage of capacitor C reduces to 0, and at this moment, controlling described gate-controlled switch is the two-way admittance state;
S3, in the t3 moment, described direct current mechanical switch begins to disconnect, in the process that described direct current mechanical switch disconnects, described direct current mechanical switch produce power, this energy is absorbed by capacitor C, and the capacitor C moment that this energy absorption is complete is t4; In the t4 moment, controlling described gate-controlled switch is the one-way conduction state, and described direct current mechanical switch is the described off-state of S1.
Preferably, t1 constantly and the delay time lag of t2 between constantly be 500 nanosecond～60 second.
Preferably, t3 constantly and the delay time lag of t4 between constantly be 500 nanosecond～60 second.
The beneficial effects of the utility model are as follows:
The utility model provides a kind of arc-control device and arc-suppressing method that comprises gate-controlled switch, this arc-control device is parallel to the two ends of conventional direct current mechanical switch, and control its sequential by gate-controlled switch, can effectively absorb the energy that produces when the direct current mechanical switch disconnects, the arcing phenomenon of avoiding the direct current mechanical switch in the disconnection process, to occur, thus useful life of direct current mechanical switch prolonged.And the arc-control device of this direct current mechanical switch has advantages of that also volume is little and cost is low, conveniently popularizes.
Description of drawings
The direct current mechanical switch that Fig. 1 provides for the utility model embodiment is at a kind of circuit diagram of main track side;
The direct current mechanical switch that Fig. 2 provides for the utility model embodiment is at the another kind of circuit diagram of main track side;
The direct current mechanical switch that Fig. 3 provides for the utility model embodiment is at a kind of circuit diagram of negative wire side;
The direct current mechanical switch that Fig. 4 provides for the utility model embodiment is at the another kind of circuit diagram of negative wire side;
The direct current mechanical switch that Fig. 5 provides for the utility model embodiment is a kind of circuit diagram when positive negative wire side respectively.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
The utility model provides a kind of arc-control device that comprises gate-controlled switch, and described arc-control device comprises absorbing circuit, gate-controlled switch and direct current mechanical switch; Described direct current mechanical switch is installed on the direct current supply line, and described absorbing circuit is installed in parallel the two ends of described direct current mechanical switch; Described gate-controlled switch is connected between described direct current mechanical switch and the described absorbing circuit; Described absorbing circuit is RC circuit in parallel.Gate-controlled switch is for controlling the switch of one-way conduction or two-way admittance, for example, control the unidirectional of controlled metal-oxide-semiconductor or insulated gate bipolar transistor IGBT or two-way admittance state by control circuit, then control circuit and controlled metal-oxide-semiconductor namely form a kind of gate-controlled switch, and perhaps control circuit and insulated gate bipolar transistor IGBT also form a kind of gate-controlled switch.
Take Fig. 1 as example, when using the said apparatus arc extinguishing, concrete arc-suppressing method may further comprise the steps:
S1, when described direct current mechanical switch was in off-state, controlling described gate-controlled switch was the one-way conduction state, the voltage of capacitor C is direct current supply voltage in the described RC circuit; Wherein, described one-way conduction state is direct current mechanical switch when disconnecting, and the direct current by the direct current mechanical switch is to the direction of absorbing circuit charging;
S2, the t1 moment, described direct current machinery switch closure; After the closure, the voltage of capacitor C consumes gradually by resistance R, and when reaching t2 during the moment, the voltage of capacitor C reduces to 0, and at this moment, controlling described gate-controlled switch is the two-way admittance state;
In this step, between the moment, need to make gate-controlled switch is the one-way conduction state at t1-t2, and the guarantee capacitor C is passed through the resistance R release voltage like this, thereby is that the energy of generation is prepared when absorbing the disconnection of direct current mechanical switch in the capacitor C subsequent step.If t1-t2 is between the moment, gate-controlled switch is the two-way admittance state, then can cause electric capacity directly to direct current mechanical switch release voltage, thereby can cause damage to the direct current mechanical switch.In the practical application, generally, t1 constantly and the delay time lag of t2 between constantly be 500 nanosecond～60 second, can guarantee that the voltage of capacitor C reduces to 0.
S3, in the t3 moment, described direct current mechanical switch begins to disconnect, in the process that described direct current mechanical switch disconnects, described direct current mechanical switch produce power, this energy is absorbed by capacitor C, and the capacitor C moment that this energy absorption is complete is t4; In the t4 moment, controlling described gate-controlled switch is the one-way conduction state, and described direct current mechanical switch is the described off-state of S1.
The t3 moment-t4 is between the moment, and gate-controlled switch is the two-way admittance state, thereby can make capacitor C absorb more fully the energy that the direct current mechanical switch produces, and reaches the purpose of arc extinguishing.In the practical application, generally, t3 constantly and the delay time lag of t4 between constantly be 500 nanosecond～60 second, can guarantee that capacitor C fully absorbs the energy that the direct current mechanical switch produces because of disconnection.
Therefore, in the utility model, absorbing circuit is parallel to the two ends of conventional direct current mechanical switch, and control its sequential by gate-controlled switch, to absorb the energy that produces when the direct current mechanical switch disconnects, can effectively absorb the energy that produces when the direct current mechanical switch disconnects, the arcing phenomenon of avoiding the direct current mechanical switch in the disconnection process, to occur.In the utility model, the direct current mechanical switch can be installed in main track side or the negative wire side of direct current supply line or be installed in simultaneously the main track side or the negative wire side, take direct current mechanical switch installation site as example, the below enumerates the particular circuit configurations of several arc-control devices.
Embodiment one: the direct current mechanical switch is installed in the main track side of direct current supply line
As shown in Figure 1, be a kind of circuit diagram, wherein, K represents the direct current mechanical switch, and RC in parallel forms absorbing circuit; K switch 2 and control circuit form gate-controlled switch jointly, by control circuit control K2 one-way conduction or two-way admittance state.Among Fig. 1, gate-controlled switch one-way conduction state is: from 1 to 2 one-way conduction state.
As shown in Figure 2, be another kind of circuit diagram, the difference of itself and Fig. 1 is, slightly has any different in the gate-controlled switch installation site, and gate-controlled switch one-way conduction state still is: from 1 to 2 one-way conduction state.
Embodiment two: the direct current mechanical switch is installed in the negative wire side of direct current supply line
Fig. 3 and Fig. 4 are the circuit diagram that two kinds of direct current mechanical switchs are installed in the negative wire side.Each symbology implication is identical with embodiment one, does not repeat them here.
Embodiment three: the direct current mechanical switch is installed in respectively main track side and the negative wire side of direct current supply line
Concrete, as shown in Figure 5, the direct current mechanical switch comprises the first direct current machinery K switch 1 and the second direct current machinery K switch 3; The first direct current machinery K switch 1 is installed in the main track side of direct current supply line, and the second direct current machinery K switch 3 is installed in the negative wire side of direct current supply line.
At the two ends of the first direct current machinery K switch 1 absorbing circuit 1 in parallel and gate-controlled switch 1, at the two ends of the second direct current machinery K switch 3 absorbing circuit 2 in parallel and gate-controlled switch 2.Wherein, the mounting means of absorbing circuit 1 and gate-controlled switch 1 is identical with Fig. 1 or Fig. 2, and the mounting means of absorbing circuit 2 and gate-controlled switch 2 is identical with Fig. 3 or Fig. 4, no longer describes in detail at this.
At last, it is emphasized that in the utility model, the gate-controlled switch that occurs in each step is that the one-way conduction state is following state: when the direct current mechanical switch disconnected, the direct current by the direct current mechanical switch was to the direction of absorbing circuit charging.
In sum, the utility model provides a kind of arc-control device and arc-suppressing method that comprises gate-controlled switch, this arc-control device is parallel to the two ends of conventional direct current mechanical switch, and control its sequential by gate-controlled switch, the energy that produces in the time of can effectively absorbing the direct current mechanical switch and disconnect, the arcing phenomenon of avoiding the direct current mechanical switch in the disconnection process, to occur, thus prolonged useful life of direct current mechanical switch.And the arc-control device of this direct current mechanical switch has advantages of that also volume is little and cost is low, conveniently popularizes.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.
Claims (4)
1. an arc-control device that comprises gate-controlled switch is characterized in that, described arc-control device comprises absorbing circuit, gate-controlled switch and direct current mechanical switch; Described direct current mechanical switch is installed on the direct current supply line, and described absorbing circuit is installed in parallel the two ends of described direct current mechanical switch; Described gate-controlled switch is connected between described direct current mechanical switch and the described absorbing circuit; Described absorbing circuit is RC circuit in parallel.
2. the arc-control device that comprises gate-controlled switch according to claim 1 is characterized in that, described direct current mechanical switch is installed in the main track side of described direct current supply line.
3. the arc-control device that comprises gate-controlled switch according to claim 1 is characterized in that, described direct current mechanical switch is installed in the negative wire side of described direct current supply line.
4. the arc-control device that comprises gate-controlled switch according to claim 1 is characterized in that, described direct current mechanical switch comprises the first direct current mechanical switch and the second direct current mechanical switch; Described the first direct current mechanical switch is installed in the main track side of described direct current supply line, and described the second direct current mechanical switch is installed in the negative wire side of described direct current supply line; Described gate-controlled switch comprises the first gate-controlled switch and the second gate-controlled switch; Described absorbing circuit comprises the first absorbing circuit and the second absorbing circuit;
Described the first absorbing circuit is installed in parallel the two ends of described the first direct current mechanical switch; Described the first gate-controlled switch is connected between described the first direct current mechanical switch and described the first absorbing circuit;
Described the second absorbing circuit is installed in parallel the two ends of described the second direct current mechanical switch; Described the second gate-controlled switch is connected between described the second direct current mechanical switch and described the second absorbing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297192 CN203251083U (en) | 2013-05-28 | 2013-05-28 | Controllable switch-containing arc-extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297192 CN203251083U (en) | 2013-05-28 | 2013-05-28 | Controllable switch-containing arc-extinguishing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203251083U true CN203251083U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320297192 Expired - Lifetime CN203251083U (en) | 2013-05-28 | 2013-05-28 | Controllable switch-containing arc-extinguishing apparatus |
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| Country | Link |
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| CN (1) | CN203251083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326328A (en) * | 2013-05-28 | 2013-09-25 | 北京联动天翼科技有限公司 | Arc-control device provided with controllable switch and arc-control method |
| CN108988295A (en) * | 2018-08-17 | 2018-12-11 | 中车永济电机有限公司 | It is quick break protective device in permanent magnet direct-drive system using one kind that IGBT is realized |
-
2013
- 2013-05-28 CN CN 201320297192 patent/CN203251083U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326328A (en) * | 2013-05-28 | 2013-09-25 | 北京联动天翼科技有限公司 | Arc-control device provided with controllable switch and arc-control method |
| CN103326328B (en) * | 2013-05-28 | 2016-06-22 | 北京联动天翼科技有限公司 | Comprise arc-control device and the arc-suppressing method of gate-controlled switch |
| CN108988295A (en) * | 2018-08-17 | 2018-12-11 | 中车永济电机有限公司 | It is quick break protective device in permanent magnet direct-drive system using one kind that IGBT is realized |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100095 floor No. 1, courtyard No. 33, purple Bird Road, Haidian District, Beijing City, -1 to 5 floor 101 Patentee after: BEIJING LINKDATA TECHNOLOGIES CO.,LTD. Address before: 100044 Beijing city Haidian District Road No. 5 Building 2 401 P.Tricuspidata Patentee before: BEIJING LIANDONG TIANYI TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |