CN217693285U - Switch-on time-delay electronic switch circuit - Google Patents
Switch-on time-delay electronic switch circuit Download PDFInfo
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- CN217693285U CN217693285U CN202221048788.XU CN202221048788U CN217693285U CN 217693285 U CN217693285 U CN 217693285U CN 202221048788 U CN202221048788 U CN 202221048788U CN 217693285 U CN217693285 U CN 217693285U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a switch-on time delay electronic switch circuit, including power and load, the power include live wire L and zero line N, live wire L and load one end electric connection, the other end electric connection of load have a rectifier bridge circuit, zero line N and rectifier bridge circuit electric connection, rectifier bridge circuit's output electric connection respectively have electronic switch circuit and gate pole time delay control circuit, gate pole time delay control circuit signal output part and electronic switch circuit's signal reception end electric connection, electronic switch circuit and gate pole time delay control circuit between electric connection have the logical attitude discharge circuit who is used for stable signal. The utility model overcomes the higher problem of the complicated cost of manufacture of traditional switch circuit wiring that exists among the prior art. The utility model has the advantages of the circuit meets the list and the wiring is with low costs.
Description
Technical Field
The utility model relates to a switch circuit field, more specifically say, relate to an on time delay electronic switch circuit.
Background
The automatic control device is applied to some automatic control devices, so that the time difference of delayed work is realized when all the instruments are matched to operate, and accidents caused by simultaneous work are avoided. If the star/star voltage reduction starting is carried out, the star voltage reduction starting is carried out in a star mode, and the star voltage reduction starting is switched to an angular connection mode for running after a period of time delay. At present, the time delay control is realized by methods of a time relay and a small control box, the wiring is complex, and the manufacturing cost is high. In addition, the small control box is inconvenient to install and maintain and brings inconvenience to users.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the complicated cost of manufacture higher problem of traditional switch circuit wiring that exists among the prior art, now provide have the wiring simple with make cost lower switch-on time delay electronic switch circuit.
The utility model discloses a switch-on time delay electronic switch circuit, including power and load, the power include live wire L and zero line N, live wire L and load one end electric connection, the other end electric connection of load have a rectifier bridge circuit, zero line N and rectifier bridge circuit electric connection, rectifier bridge circuit's output electric connection respectively have electronic switch circuit and gate pole time delay control circuit, gate pole time delay control circuit signal output part and electronic switch circuit's signal reception end electric connection, electronic switch circuit and gate pole time delay control circuit between electric connection have the on-state discharge circuit who is used for stable signal.
Preferably, the rectifier bridge circuit includes a diode D1, a diode D2, a diode D3, and a diode D4, the anode of the diode D1 and the cathode of the diode D2 are electrically connected to the other end of the load, respectively, the cathode of the diode D1 is electrically connected to the cathode of the diode D3, the anode of the diode D2 is electrically connected to the anode of the diode D4, the anode of the diode D3 is electrically connected to the cathode of the diode D4, and the anode of the diode D3 is electrically connected to the neutral line N.
Preferably, the electronic switch circuit comprises a thyristor SCR1 and a diode D8, wherein pin 1 of the thyristor SCR1 is electrically connected to the cathode of the diode D3, and pin 3 of the thyristor SCR1 is electrically connected to the anode of the diode D8.
Preferably, the gate delay control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a delay capacitor C1 and a transistor Q1, wherein one end of the resistor R1 is electrically connected to a negative electrode of the diode D3 and a pin 1 of the thyristor SCR1, the other end of the resistor R1 is electrically connected to one end of the resistor R2 and one end of the resistor R4, the other end of the resistor R4 is electrically connected to one end of the resistor R5 and a collector of the transistor Q1, the other end of the resistor R5 is electrically connected to a pin 2 of the thyristor SCR1, the other end of the resistor R2 is electrically connected to one end of the resistor R3, the other end of the resistor R3 is electrically connected to a positive electrode of the delay capacitor C1, a negative electrode of the delay capacitor C1 is electrically connected to one end of the resistor R6, the other end of the resistor R6 is electrically connected to a base of the transistor Q1, and an emitter of the diode Q1 is electrically connected to a negative electrode of the diode D8.
Preferably, the on-state discharge circuit includes a diode D5, a diode D6 and a zener diode D7, a cathode of the diode D5 is electrically connected to one end of the resistor R2, an anode of the diode D5 is electrically connected to an anode of the delay capacitor C1 and a cathode of the zener diode D7, respectively, a cathode of the diode D6 is electrically connected to one end of the resistor R6, and an anode of the diode D6 is electrically connected to a cathode of the zener diode D7, an emitter of the transistor Q1 and a cathode of the diode D8, respectively.
The utility model discloses constitute by rectifier bridge circuit, electronic switch circuit, gate pole time delay control circuit and on-state discharge circuit. The rectifier bridge circuit is composed of four diodes D1, D2, D3 and D4 and is used for achieving the alternating current and direct current universal characteristic of the electronic switch. The electronic switch circuit is formed by connecting a thyristor SCR1 and a diode D8 in series, wherein the thyristor controls the on and off of the main circuit through a gate (G), and the series diode is mainly used for ensuring that the gate (G) and the cathode (K) of the thyristor form relative negative pressure and ensuring the reliable on-off state. The gate delay control circuit mainly comprises current-limiting resistors R1, R2, R3, R4, R5 and R6; charging a delay capacitor C1; a charging clamping voltage-regulator tube D7; and a drive control triode Q1. The circuit connections are shown in fig. 1. The resistors R1, R2, R3 and R6 are used for charging the capacitor C1 after current limiting, and providing base current for the triode Q1; the charging clamping voltage-stabilizing tube D7 is used for limiting the upper limit of the charging voltage; the drive control triode Q1 is used for controlling the drive current of a gate pole (G) of the thyristor SCR 1; when the thyristor SCR1 is conducted, the on-state discharge loop provides a rapid discharge loop for the capacitor C1 through the diodes D5 and D6 by utilizing the original current limiting resistor R1 and the electronic switch circuit, and the state of the circuit is reset, so that the problem of large continuous connection delay error is solved.
The switch-on time-delay electronic switch circuit mainly comprises a rectifier bridge circuit, an electronic switch circuit, a gate electrode time-delay control circuit and an on-state discharge circuit. The external power supply outputs direct current after passing through the load and being rectified by the D1, D2, D3 and D4 full bridge. The positive pole (+) of the rectifier bridge is connected with the two branches, wherein the two branches are connected with a current limiting resistor R1 to form a control loop; and the anode (A) of the thyristor SCR1 is connected to form an anode of an electronic switch loop. The cathode (K) of the thyristor SCR1 is connected with a diode D8 in series and then is connected to the negative pole (-) of the rectifier bridge to form a complete conduction loop of the electronic switch; the current limiting resistor R1 is connected with a base (b) of a triode Q1 after being connected with resistors R2 and R3, a capacitor C1 and a resistor R6 in series to form a switched-on charging delay loop; a charging clamping voltage-regulator tube D7 is connected in parallel to the positive electrode of the capacitor C1 and the negative (-) end of the rectifier bridge and used for limiting the charging upper limit voltage; two ends of a freewheeling diode D6 are respectively connected to the negative electrode of the capacitor C1 and the negative electrode of the rectifier bridge, and a freewheeling diode D5 is connected with the series resistors R2 and R3 in parallel, so that a quick discharge loop is formed for the capacitor C1; the current limiting resistor R1 is connected with a gate pole (G) of the thyristor SCR1 through series resistors R4 and R5 to provide gate pole driving current; the collector (c) of the triode Q1 is connected to the midpoint of the series resistors R4 and R5 to provide a bypass path for the driving current of the gate (G) of the thyristor SCR 1.
When the circuit is switched on, high voltage appears at the positive pole of the rectifier bridge, current charges the capacitor C1 through the current limiting resistors R1, R2, R3 and R6, the charging current flows through the base (b) of the triode Q1, and the collector of the triode enters a saturation working state at the moment, so that the gate driving current of the thyristor SCR1 is bypassed by the triode. Namely, before the charging voltage of the capacitor C1 does not reach the upper limit voltage of the charging clamping voltage regulator tube D7, the thyristor SCR1 is in an off state.
Along with the rise of the voltage at the two ends of the charging capacitor C1, the charging current starts to be gradually reduced, namely the current of the base electrode (b) of the triode is gradually reduced, when the voltage of the capacitor C1 is charged to be close to the voltage of the voltage regulator tube D7, the triode exits the saturation working state and enters an amplification working interval, and at the moment, the current of the gate electrode of the thyristor SCR1 is gradually increased until the thyristor is driven to be conducted.
After the thyristor is conducted, the voltage of the positive electrode of the rectifier bridge is pulled down, at the moment, the capacitor C1 is rapidly discharged through D6, D5, R1, SCR1 and D8, the state of the capacitor is reset, and the next turn-on delay precision is ensured. After the power supply is turned on, the thyristor SCR1 is kept in the on state until the external power supply is turned off.
The utility model discloses following beneficial effect has: the circuit is connected with the single, and the wiring cost is low.
Drawings
Fig. 1 is a schematic circuit diagram of the utility model.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the switch-on time-delay electronic switch circuit further described in the present example according to fig. 1 comprises a power supply and a load, wherein the power supply comprises a live wire L and a zero wire N, the live wire L is electrically connected with one end of the load, the other end of the load is electrically connected with a rectifier bridge circuit, the zero wire N is electrically connected with the rectifier bridge circuit, the output end of the rectifier bridge circuit is respectively electrically connected with an electronic switch circuit and a gate delay control circuit, the signal output end of the gate delay control circuit is electrically connected with the signal receiving end of the electronic switch circuit, and an on-state discharge circuit for stabilizing signals is electrically connected between the electronic switch circuit and the gate delay control circuit.
Rectifier bridge circuit include diode D1, diode D2, diode D3 and diode D4, diode D1's positive pole and diode D2's negative pole respectively with the other end electric connection of load, diode D1's negative pole and diode D3's negative pole electric connection, diode D2's positive pole and diode D4's positive pole electric connection, diode D3's positive pole and diode D4's negative pole electric connection, diode D3's positive pole and zero line N electric connection.
The electronic switch circuit comprises a thyristor SCR1 and a diode D8, wherein a pin 1 of the thyristor SCR1 is electrically connected with a cathode of the diode D3, and a pin 3 of the thyristor SCR1 is electrically connected with an anode of the diode D8.
The gate delay control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a delay capacitor C1 and a triode Q1, wherein one end of the resistor R1 is respectively electrically connected with the negative electrode of the diode D3 and the pin 1 of the thyristor SCR1, the other end of the resistor R1 is respectively electrically connected with one end of the resistor R2 and one end of the resistor R4, the other end of the resistor R4 is respectively electrically connected with one end of the resistor R5 and the collector of the triode Q1, the other end of the resistor R5 is electrically connected with the pin 2 of the thyristor SCR1, the other end of the resistor R2 is electrically connected with one end of the resistor R3, the other end of the resistor R3 is electrically connected with the positive electrode of the delay capacitor C1, the negative electrode of the delay capacitor C1 is electrically connected with one end of the resistor R6, the other end of the resistor R6 is electrically connected with the base of the triode Q1, and the emitting electrode of the triode Q1 is electrically connected with the negative electrode of the diode D8.
The on-state discharge loop comprises a diode D5, a diode D6 and a voltage stabilizing diode D7, wherein the cathode of the diode D5 is electrically connected with one end of a resistor R2, the anode of the diode D5 is electrically connected with the anode of a delay capacitor C1 and the cathode of the voltage stabilizing diode D7 respectively, the cathode of the diode D6 is electrically connected with one end of the resistor R6, and the anode of the diode D6 is electrically connected with the cathode of the voltage stabilizing diode D7, the emitting electrode of a triode Q1 and the cathode of a diode D8 respectively.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (5)
1. The utility model provides a switch-on time delay electronic switch circuit, includes power and load, characterized by, the power include live wire L and zero line N, live wire L and load one end electric connection, the other end electric connection of load have a rectifier bridge circuit, zero line N and rectifier bridge circuit electric connection, rectifier bridge circuit's output electric connection respectively have electronic switch circuit and gate pole time delay control circuit, gate pole time delay control circuit signal output part and electronic switch circuit's signal reception end electric connection, electronic switch circuit and gate pole time delay control circuit between electric connection have the on-state discharge circuit who is used for stable signal.
2. An on-delay electronic switch circuit as claimed in claim 1, wherein said rectifier bridge circuit comprises a diode D1, a diode D2, a diode D3 and a diode D4, an anode of said diode D1 and a cathode of said diode D2 are electrically connected to another end of the load, respectively, a cathode of said diode D1 is electrically connected to a cathode of said diode D3, an anode of said diode D2 is electrically connected to an anode of said diode D4, an anode of said diode D3 is electrically connected to a cathode of said diode D4, and an anode of said diode D3 is electrically connected to a neutral line N.
3. The on-delay electronic switch circuit as claimed in claim 2, wherein the electronic switch circuit comprises a thyristor SCR1 and a diode D8, wherein pin 1 of the thyristor SCR1 is electrically connected to the negative electrode of the diode D3, and pin 3 of the thyristor SCR1 is electrically connected to the positive electrode of the diode D8.
4. A switch-on delay electronic switch circuit as claimed in claim 3, wherein said gate delay control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a delay capacitor C1 and a transistor Q1, one end of said resistor R1 is electrically connected to the negative terminal of the diode D3 and the 1 pin of the thyristor SCR1, the other end of said resistor R1 is electrically connected to one end of the resistor R2 and one end of the resistor R4, the other end of said resistor R4 is electrically connected to one end of the resistor R5 and the collector of the transistor Q1, the other end of said resistor R5 is electrically connected to the 2 pins of the thyristor SCR1, the other end of said resistor R2 is electrically connected to one end of the resistor R3, the other end of said resistor R3 is electrically connected to the positive terminal of the delay capacitor C1, the negative terminal of said delay capacitor C1 is electrically connected to one end of the resistor R6, the other end of the base of the transistor Q1 is electrically connected to the negative terminal of the diode D8.
5. The on-delay electronic switch circuit according to claim 4, wherein the on-discharge circuit comprises a diode D5, a diode D6 and a zener diode D7, a cathode of the diode D5 is electrically connected to one end of the resistor R2, an anode of the diode D5 is electrically connected to an anode of the delay capacitor C1 and a cathode of the zener diode D7, respectively, a cathode of the diode D6 is electrically connected to one end of the resistor R6, and an anode of the diode D6 is electrically connected to a cathode of the zener diode D7, an emitter of the transistor Q1 and a cathode of the diode D8, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221048788.XU CN217693285U (en) | 2022-05-05 | 2022-05-05 | Switch-on time-delay electronic switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221048788.XU CN217693285U (en) | 2022-05-05 | 2022-05-05 | Switch-on time-delay electronic switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217693285U true CN217693285U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221048788.XU Active CN217693285U (en) | 2022-05-05 | 2022-05-05 | Switch-on time-delay electronic switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217693285U (en) |
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2022
- 2022-05-05 CN CN202221048788.XU patent/CN217693285U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231026 Address after: 201600 No. 418, changta Road, Shihudang Town, Songjiang District, Shanghai Patentee after: SHANGHAI HUA TONG SWITCHGEAR Co.,Ltd. Address before: 311201 No. 243 Hongshan Avenue, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU ZHIJIANG SWITCHGEAR STOCK Co.,Ltd. |
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| TR01 | Transfer of patent right |