CN218694853U - AC/DC solid relay - Google Patents
AC/DC solid relay Download PDFInfo
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- CN218694853U CN218694853U CN202222509883.1U CN202222509883U CN218694853U CN 218694853 U CN218694853 U CN 218694853U CN 202222509883 U CN202222509883 U CN 202222509883U CN 218694853 U CN218694853 U CN 218694853U
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- alternating current
- air valve
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Abstract
The utility model relates to an alternating current-direct current solid state relay, which comprises an input circuit part, a drive circuit part and an output circuit part, wherein the drive circuit part comprises a solid state plate which is connected with the input circuit part through a wiring terminal and is used for transmitting a control signal provided by the input circuit part; the solid-state board is provided with an alternating current circuit group and a direct current circuit group, the output circuit part comprises an alternating current air valve load and a direct current air valve load, and the alternating current circuit group and the direct current circuit group are respectively connected with the alternating current air valve load and the direct current air valve load through wiring terminals and used for selectively driving the alternating current air valve load or the direct current air valve load to be switched on or off according to control signals so as to realize field alternating current and direct current load conversion. The utility model discloses can adapt to the function that the alternating current-direct current of handing over, direct current pneumatic valve resistance welder switches, provide the convenience when the welding machine uses, improve welding efficiency greatly.
Description
Technical Field
The utility model belongs to the technical field of resistance welding machine control, especially, realize that resistance welding machine adapts to a AC, DC power supply pneumatic valve's an alternating current-direct current solid state relay.
Background
The resistance welding machine equipment is widely applied to the fields of aviation, aerospace, automobiles, household appliances and the like. At present, when a welder is matched with an alternating-current gas valve, a control system of an alternating-current solid-state relay control loop needs to be arranged, when the welder is matched with a direct-current gas valve, the control system of the direct-current solid-state relay control loop needs to be arranged, and one controller can not control the alternating use of the alternating-current welder and the direct-current gas valve on a production field, so that inconvenience is brought to production, and the cost of user equipment is increased.
No patent documents relevant to the present application were found by search.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide an alternating current-direct current relay that realization can adapt to handing over, direct current pneumatic valve resistance welder.
The utility model provides a its technical problem take following technical scheme to realize:
an AC/DC solid-state relay comprises an input circuit part, a drive circuit part and an output circuit part, wherein the drive circuit part comprises a solid-state plate which is connected with the input circuit part through a wiring terminal and is used for transmitting a control signal provided by the input circuit part; the solid-state board is provided with an alternating current circuit group and a direct current circuit group, the output circuit part comprises an alternating current air valve load and a direct current air valve load, and the alternating current circuit group and the direct current circuit group are respectively connected with the alternating current air valve load and the direct current air valve load through wiring terminals and used for selectively driving the alternating current air valve load or the direct current air valve load to be switched on or switched off according to control signals so as to realize conversion between the alternating current load and the direct current load on site.
And the input circuit part is a welding machine main control board, and input control signals of the input circuit part are provided by the welding machine main control board.
And the power supply of the driving circuit part is a VCC power supply provided by a welding machine main control board.
The AC circuit group includes an AC photoelectric isolation circuit and an AC driving trigger circuit.
The alternating current photoelectric isolation circuit comprises a first optocoupler, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a second capacitor, a first triode and a second indicator light, wherein the first optocoupler comprises an input part and an output part, the second capacitor is connected in parallel with two ends of the first triode, after the first triode and the twelfth resistor are connected in series, one end of the first triode is connected with a VCC power supply, the other end of the first triode is connected with a GND ground wire, the first triode is connected with the eleventh resistor in series, is used for receiving a control signal, is conducted for the input part of the first optocoupler, and is connected with the thirteenth resistor and the second indicator light in series to form a loop; the output part of the first optocoupler is connected with an alternating current driving trigger circuit, the alternating current driving trigger circuit comprises a fourteenth resistor and a bidirectional thyristor which are connected in series, and the bidirectional thyristor is connected with an alternating current air valve in series and then respectively connected with two ends of an air valve alternating current power supply.
The DC circuit group includes a DC photoelectric isolation circuit and a DC driving trigger circuit.
Moreover, the direct current photoelectric isolation circuit comprises a second optocoupler, a third resistor, a first capacitor, a second triode, a first indicator light, a second resistor and an eighth resistor, wherein the second optocoupler comprises an input part and an output part, the two ends of the second triode are connected in parallel with the first capacitor, after the second triode and the second resistor are connected in series, one end of the second triode is connected with a VCC power supply, the other end of the second triode is connected with a GND ground wire, the second triode is connected in series with the third resistor, is used for receiving a control signal, is conducted for the input part of the second optocoupler, and is connected in series with the eighth resistor and the first indicator light to form a loop; the output part of the second optical coupler is connected with a direct current drive trigger circuit, the direct current drive trigger circuit comprises a first resistor, a fourth resistor, a seventh resistor, a fifth resistor, a sixth resistor, a Darlington tube, a diode and a voltage stabilizing diode, the output part of the second optical coupler is connected with the first resistor and the seventh resistor, the first resistor and the seventh resistor are respectively connected with the positive pole and the negative pole of an air valve direct current power supply through wiring terminals to form a main loop, the Darlington tube is connected on the main loop in parallel, the output part of the second optical coupler and the seventh resistor connecting line are also connected with the fourth resistor in a branching mode, the fourth resistor is connected with the Darlington tube in series, the direct current valve is connected on a circuit formed by connecting the first resistor and the positive pole of the air valve direct current power supply in parallel, the fifth resistor is connected on a circuit formed by the direct current valve and the first resistor, one end of the Darlington tube is connected with the diode and the sixth resistor in series, the voltage stabilizing diode is connected with the Darlington tube in parallel, and the voltage stabilizing diode is connected with the circuit formed by the fifth resistor and the direct current valve.
Also, the first optical coupler is an optical coupler 3063.
And, the second opto-coupler is opto-coupler TLP521-1.
The utility model has the advantages that:
the utility model provides a relay can adapt to the function that the alternating current-direct current of handing over, direct current pneumatic valve resistance welder switches, provides the convenience when the welding machine uses, no matter be the welding of the welding machine of alternating current pneumatic valve or direct current pneumatic valve, this relay can all use, has improved welding efficiency greatly.
Drawings
Fig. 1 is a schematic structural diagram of an ac/dc solid-state relay according to the present invention;
fig. 2 is a schematic block diagram of the ac/dc solid-state relay of the present invention;
fig. 3 is a schematic circuit diagram of the ac/dc solid-state relay of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
An AC/DC solid-state relay comprises an input circuit part, a drive circuit part and an output circuit part, wherein the drive circuit part comprises a solid-state plate which is connected with the input circuit part through a wiring terminal and is used for transmitting a control signal provided by the input circuit part; the solid-state board is provided with an alternating current circuit group and a direct current circuit group, the output circuit part comprises an alternating current air valve load and a direct current air valve load, and the alternating current circuit group and the direct current circuit group are respectively connected with the alternating current air valve load and the direct current air valve load through wiring terminals and used for selectively driving the alternating current air valve load or the direct current air valve load to be switched on or off according to control signals so as to realize field alternating current and direct current load conversion.
The input circuit part is a welding machine main control board, and input control signals of the input circuit part are provided by a welding machine main control board control system; and the power supply of the driving circuit part is a VCC power supply provided by a welding machine main control board.
And the circuit form on the solid-state board realizes the connection as shown in fig. 3:
the alternating current circuit group comprises an alternating current photoelectric isolation circuit A-JL and an alternating current driving trigger circuit B-JL, the alternating current photoelectric isolation circuit comprises a first optocoupler 3063, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a second capacitor C2, a first triode T1 and a second indicator lamp DL2, the first optocoupler 3063 comprises an input part and an output part, two ends of the first triode are connected with the second capacitor C2 in parallel, one end of the first triode and the twelfth resistor R12 are connected in series and then connected with a VCC power supply, the other end of the first triode and the twelfth resistor R12 are connected with a GND ground wire, the first triode and the eleventh resistor R11 are connected in series and used for receiving a control signal, the input part of the first optocoupler 3063 is conducted, and the first triode and the thirteenth resistor R13 and the second indicator lamp DL2 are connected in series to form a loop; the output part of the first optocoupler 3063 is connected with an alternating current driving trigger circuit, the alternating current driving trigger circuit comprises a fourteenth resistor R14 and a bidirectional thyristor BT136 which are connected in series, and the bidirectional thyristor BT136 is connected with an alternating current air valve in series and then is respectively connected with the anode and the cathode of an alternating current power supply of the air valve; specifically, one end of the bidirectional thyristor BT136 is connected with one end electrode of an air valve alternating current power supply through a wiring terminal AC-1-1, the other end of the bidirectional thyristor BT136 is connected with an alternating current air valve through a wiring terminal AC-1-2 and used for air valve alternating current output, and the alternating current air valve is connected with the other end electrode of the air valve alternating current power supply through a wiring terminal AC-2.
The direct current circuit group comprises a direct current photoelectric isolation circuit A-ZL and a direct current drive trigger circuit B-ZL, the direct current photoelectric isolation circuit comprises a second optocoupler 521-1, a third resistor R3, a first capacitor C2, a second triode T2, a first indicator lamp DL1, a second resistor R2 and an eighth resistor R8, the second optocoupler 521-1 comprises an input part and an output part, the first capacitor C1 is connected in parallel with two ends of the second triode T2, one end of the second triode T2 is connected with a VCC power supply after being connected in series with the second resistor R2, the other end of the second triode T2 is connected with a GND ground wire, the second triode T2 is connected in series with the third resistor R3 and used for receiving a control signal, the input part of the second optocoupler 521-1 is conducted, and the second triode T2 is connected with the eighth resistor R8 and the first indicator lamp DL1 in series to form a loop; the output part of the second optical coupler 521-1 is connected with a direct current driving trigger circuit, the direct current driving trigger circuit comprises a first resistor R1, a fourth resistor R4, a seventh resistor R7, a fifth resistor R5, a sixth resistor R6, a Darlington tube IRF530, a diode D1 and a voltage stabilizing diode ZD, the output part of the second optical coupler 521-1 is connected with the first resistor R1 and the seventh resistor R7, the first resistor R1 and the seventh resistor R7 are respectively connected with the positive pole and the negative pole of an air valve direct current power supply through connecting terminals to form a main loop, the Darlington tube IRF530 is connected in parallel with the main loop, the output part of the second optical coupler 521-1 and the connecting line of the seventh resistor R7 are further connected in a branch manner with the fourth resistor R4, the fourth resistor R4 is connected in series with the Darlington tube IRF530, the first resistor R1 and the positive pole of the direct current power supply are connected in parallel with the direct current valve, the fifth resistor R5 and the fifth resistor R5 are connected in series with the DC diode ZD 530, and the other end of the DC diode are connected in parallel with the DC valve IRF530, and the third resistor R5 are connected in series with the DC diode ZD and the DC diode ZD diode 530.
The utility model discloses an operating condition describes as follows:
when the control signal is applied, the current-limiting resistor R11 connected to the base of the first triode T1 is used for conducting the T1, so that the input part of the first optocoupler 3063 is conducted, namely the input part of the first optocoupler 3063 is conducted together with the current-limiting resistor R13 and the second indicator lamp DL2 to form a loop, at the moment, the bidirectional thyristor of the output part of the first optocoupler 3063 is conducted at the zero crossing point of the air valve alternating current power supply, and further the connection of the fourteenth resistor R14 is used for driving the bidirectional thyristor BT136 to be conducted, so that the AC-1-2 and the AC-1-1 of the alternating current air valve are conducted, and the alternating current air valve works electrically. The triac BT136, among other things, functions to increase the driving capability.
The condition of controlling the direct current air valve is similar to alternating current, when a control signal is not applied, only 24V + of the direct current air valve is connected with a direct current power supply of the air valve, the voltage is also 24V after the other end of the direct current air valve passes through a fifth resistor R5, so the direct current air valve does not act, when the control signal is applied, the control signal enables T2 to be conducted through a third resistor R3 current-limiting resistor connected to the base electrode of a second triode T2, further the input part of a second optical coupler 521-1 is conducted, namely the control signal is connected with a current-limiting resistor R8 and a first indicator light DL1 to form a loop, at the moment, the transistor output part of the second optical coupler 521-1 is conducted through a first resistor R1 and a seventh resistor R7, after the current-limiting resistor is passed through a fourth resistor R4, a Darlington tube IRF530 is driven to be conducted, the 24V-/1 and the 24V-of the direct current air valve are conducted, and the direct current air valve works electrically. The voltage stabilizing diode ZD has the function of ensuring that the Darlington tube IRF530 works under high power so as to increase the loading capacity, and the sixth resistor R6 and the diode D1 have the function of eliminating the recoil voltage of the direct current gas valve.
The utility model provides a relay can adapt to the function that the alternating current-direct current of handing over, direct current pneumatic valve resistance welder switches, the convenience when providing the welding machine and using, no matter be the welding of the welding machine of alternating current pneumatic valve or direct current pneumatic valve, this relay can all use, has improved welding efficiency greatly.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (9)
1. An alternating current-direct current solid state relay is characterized in that: the drive circuit part comprises a solid plate, and the solid plate is connected with the input circuit part through a wiring terminal and is used for transmitting a control signal provided by the input circuit part; the solid-state board is provided with an alternating current circuit group and a direct current circuit group, the output circuit part comprises an alternating current air valve load and a direct current air valve load, and the alternating current circuit group and the direct current circuit group are respectively connected with the alternating current air valve load and the direct current air valve load through wiring terminals and used for selectively driving the alternating current air valve load or the direct current air valve load to be switched on or off according to control signals so as to realize field alternating current and direct current load conversion.
2. The ac-dc solid state relay of claim 1, wherein: the input circuit part is a welding machine main control board, and input control signals of the input circuit part are provided by the welding machine main control board.
3. The ac-dc solid state relay of claim 1, wherein: and the power supply of the drive circuit part is a VCC power supply provided by a welding machine main control board.
4. The ac-dc solid state relay of claim 1, wherein: the alternating current circuit group comprises an alternating current photoelectric isolation circuit and an alternating current driving trigger circuit.
5. The ac-dc solid-state relay according to claim 4, wherein: the alternating current photoelectric isolation circuit comprises a first optocoupler, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a second capacitor, a first triode and a second indicator light, wherein the first optocoupler comprises an input part and an output part, the two ends of the first triode are connected in parallel with the second capacitor, after the first triode and the twelfth resistor are connected in series, one end of the first triode is connected with a VCC power supply, the other end of the first triode is connected with a GND ground wire, the first triode is connected with the eleventh resistor in series, is used for receiving a control signal, is conducted for the input part of the first optocoupler, and is connected with the thirteenth resistor and the second indicator light in series to form a loop; the output part of the first optocoupler is connected with an alternating current driving trigger circuit, the alternating current driving trigger circuit comprises a fourteenth resistor and a bidirectional thyristor which are connected in series, and the bidirectional thyristor is connected with an alternating current air valve in series and then respectively connected with two ends of an air valve alternating current power supply.
6. The ac-dc solid state relay of claim 1, wherein: the direct current circuit group comprises a direct current photoelectric isolation circuit and a direct current drive trigger circuit.
7. The ac-dc solid-state relay according to claim 6, wherein: the direct current photoelectric isolation circuit comprises a second optocoupler, a third resistor, a first capacitor, a second triode, a first indicator light, a second resistor and an eighth resistor, the second optocoupler comprises an input part and an output part, the first capacitor is connected in parallel with the two ends of the second triode, after the second triode and the second resistor are connected in series, one end of the second triode is connected with a VCC power supply, the other end of the second triode is connected with a GND ground wire, the second triode is connected in series with the third resistor, is used for receiving a control signal, is conducted for the input part of the second optocoupler, and is connected in series with the eighth resistor and the first indicator light to form a loop; the output part of the second optical coupler is connected with a direct current drive trigger circuit, the direct current drive trigger circuit comprises a first resistor, a fourth resistor, a seventh resistor, a fifth resistor, a sixth resistor, a Darlington tube, a diode and a voltage stabilizing diode, the output part of the second optical coupler is connected with the first resistor and the seventh resistor, the first resistor and the seventh resistor are respectively connected with the positive pole and the negative pole of an air valve direct current power supply through wiring terminals to form a main loop, the Darlington tube is connected on the main loop in parallel, the output part of the second optical coupler and the seventh resistor connecting line are also connected with the fourth resistor in a branching mode, the fourth resistor is connected with the Darlington tube in series, the direct current valve is connected on a circuit formed by connecting the first resistor and the positive pole of the air valve direct current power supply in parallel, the fifth resistor is connected on a circuit formed by the direct current valve and the first resistor, one end of the Darlington tube is connected with the diode and the sixth resistor in series, the voltage stabilizing diode is connected with the Darlington tube in parallel, and the voltage stabilizing diode is connected with the circuit formed by the fifth resistor and the direct current valve.
8. The ac-dc solid-state relay according to claim 5, wherein: the first optical coupler is an optical coupler 3063.
9. The ac-dc solid state relay of claim 7, wherein: the second optical coupler is an optical coupler TLP521-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222509883.1U CN218694853U (en) | 2022-09-22 | 2022-09-22 | AC/DC solid relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222509883.1U CN218694853U (en) | 2022-09-22 | 2022-09-22 | AC/DC solid relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218694853U true CN218694853U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222509883.1U Active CN218694853U (en) | 2022-09-22 | 2022-09-22 | AC/DC solid relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218694853U (en) |
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2022
- 2022-09-22 CN CN202222509883.1U patent/CN218694853U/en active Active
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