CN112635247A - Combined relay - Google Patents
Combined relay Download PDFInfo
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- CN112635247A CN112635247A CN202011569384.0A CN202011569384A CN112635247A CN 112635247 A CN112635247 A CN 112635247A CN 202011569384 A CN202011569384 A CN 202011569384A CN 112635247 A CN112635247 A CN 112635247A
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- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H2050/049—Assembling or mounting multiple relays in one common housing
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
Abstract
The invention provides a combined relay, which combines a solid relay, an electromagnetic relay and a disconnection delay relay, achieves the phenomenon of less arcing and sparking in use, does not have the condition of high heating in the case of using the solid relay alone, does not use a time sequence chip or a radiator, has the characteristics of low cost, convenience for production, long service life of the phenomenon of less arcing and sparking, low heating, high load, zero ampere of high load current after low-voltage control power failure and small volume, and is mainly used for scenes with high requirements on circuit stability and frequent switching.
Description
Technical Field
The invention aims to provide a combined relay, which combines a solid relay and an electromagnetic relay, achieves the purpose of reducing arcing and sparking during use, does not have the high heating condition when the solid relay is used alone, does not use a time sequence chip or a radiator, has the characteristics of low cost, convenience for production, long service life of the reducing arcing and sparking phenomenon, low heating and small volume, and is mainly used for scenes with high requirements on circuit stability and frequent switching.
Background
The invention provides a relay combining a solid-state relay and an electromagnetic relay without using a time sequence chip, which has the characteristics of low cost, convenience in production, less arcing and sparking phenomena, long service life, low heat generation and small volume.
Disclosure of Invention
The invention provides a relay combining a solid-state relay and an electromagnetic relay without using a time sequence chip, which mainly changes the current in a circuit through a capacitor or an inductor and achieves the aim that the closing or opening time of the solid-state relay and the electromagnetic relay is different.
Comprises a solid state relay; a solid-state relay low-load first binding post; a solid-state relay low-load second binding post; a first resistor; the low-load first binding post of the electromagnetic relay; a low-load second binding post of the electromagnetic relay; an electromagnetic relay; a high-load first line; a high load first terminal; a high-load second terminal; a high-load second line; a high-load first binding post of the electromagnetic relay; a high-load second binding post of the electromagnetic relay; a solid-state relay high-load first binding post; a solid-state relay high-load second wiring terminal; a low-load first terminal; a low-load first line; a low-load second terminal; a second resistor; a low-load second line; a capacitor; a third resistor, characterized by: a solid-state relay low-load first binding post and a solid-state relay low-load second binding post on the solid-state relay are respectively connected with an electromagnetic relay low-load second binding post and an electromagnetic relay low-load first binding post on the electromagnetic relay through conductors, a first resistor is arranged on a connecting line of the solid-state relay low-load first binding post and the electromagnetic relay low-load second binding post, a solid-state relay high-load first binding post and a solid-state relay high-load second binding post on the solid-state relay are respectively and directly connected with an electromagnetic relay high-load second binding post and an electromagnetic relay high-load first binding post through conductors, one end of a low-load second line is connected with the solid-state relay low-load first binding post, the other end of the second resistor is connected with the low-load second binding post, and one end of the low-load first line is connected with the solid-state relay low, one end of the solid-state relay is connected to the first binding post of the low load, a capacitor is connected between the first binding post of the low load and the second line of the low load, one end of the externally controlled high-load circuit is connected to the first binding post of the high load, and the other end of the externally controlled high-load circuit is connected to the second binding post of the high load.
One end of a high-load first circuit is connected with a high-load second binding post of the electromagnetic relay, the other end of the high-load first circuit is connected with the high-load first binding post of the electromagnetic relay, one end of the high-load second circuit is connected with the high-load second binding post of the electromagnetic relay, direct current is conducted between the low-load second binding post and the low-load first binding post of the solid-state relay, a capacitor is charged, a slowly rising process is carried out on the current reaching the low-load first binding post of the solid-state relay and the low-load second binding post of the solid-state relay, the power of the action of the solid-state relay is smaller than that of the action of the electromagnetic relay, a first resistor has a blocking effect on the current passing through the electromagnetic relay, the solid-state relay acts firstly in the rising process of the current, then the electromagnetic relay acts to close a normally open contact, therefore, the probability of arcing and sparking is low when the contact on the electromagnetic relay is closed, after the contact on the electromagnetic relay is closed, the first high-load binding post of the solid-state relay on the solid-state relay is conducted with the second high-load binding post of the solid-state relay, the solid-state relay does not bear the load, the heat productivity of the solid-state relay can be greatly reduced, the solid-state relay does not need to be provided with a radiator, and the size is reduced.
When the low-load second terminal and the low-load first terminal are connected with direct current for disconnection, the capacitor discharges, the released current has a process from large to small, the power of the action of the solid-state relay is smaller than that of the action of the electromagnetic relay, the first resistor has an effect of blocking the current passing through the electromagnetic relay, the electromagnetic relay can act to disconnect the closed contact first, at the moment, the high load is born by the solid-state relay in the disconnection circuit, so the arcing and sparking phenomenon probability is very small when the contact on the electromagnetic relay is disconnected at the moment, after the electromagnetic relay is disconnected, the current released by the capacitor continues to be reduced, and the solid-state relay acts immediately, so that the high-load circuit controlled by the combined relay is disconnected.
The second resistor is replaced by a diode or a diode with one end connected in series, so that current can be prevented from flowing to the low-load first binding post or the low-load second binding post when the capacitor discharges.
And a third resistor is connected in series on a circuit between the capacitor and the first binding post of the low load of the solid-state relay or the second binding post of the low load of the solid-state relay, so that the discharging time of the capacitor is prolonged.
The third resistor, the first resistor and the second resistor are all between zero ohm and eight kilo ohms in resistance value, when the second resistor is zero ohm, when the second resistor does not exist, the power source originally connected to the first low-load wiring terminal and the second low-load wiring terminal of the solid-state relay is directly connected to the first low-load wiring terminal of the solid-state relay and the second low-load wiring terminal of the solid-state relay.
When the first binding post of low load and the second binding post of low load are connected with AC low voltage, the capacitor is not installed in the circuit, and an inductor is installed between the first circuit of low load or the second circuit of low load.
The high-load first circuit or the high-load second circuit is provided with a disconnection delay relay, the high-load first circuit or the high-load second circuit is cut at two ends of a high load of the disconnection delay relay, a low-voltage control end of the disconnection delay relay is connected to a low-load first wiring terminal and a low-load second wiring terminal, when the low-load first wiring terminal and the low-load second wiring terminal are connected to be powered on, the disconnection delay relay acts to close a contact, when the low-load first wiring terminal and the low-load second wiring terminal are not powered on, the disconnection delay relay passes through a delay element, and is disconnected after time delay, so that the current passing through the circuit with the high load controlled by the combined relay reaches zero ampere.
The electromagnetic relay is changed into a holding relay, and the closing and the opening of the contact of the electromagnetic relay are controlled by changing the current directions on the low-load first wiring terminal and the low-load second wiring terminal.
The electromagnetic relay and the solid-state relay are provided with one or more groups of controlled high-load binding posts.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings showing the embodiments will be described below.
Fig. 1 is a front view of the structure of the present invention.
In the figure: a housing 1; a solid-state relay 2; a solid-state relay low-load first binding post 3; a solid-state relay low-load second terminal 4; a first resistor 5; a low-load first binding post 6 of the electromagnetic relay; a low-load second binding post 7 of the electromagnetic relay; an electromagnetic relay 8; a high-load first line 9; a high-load first terminal 10; a high-load second post 11; a high-load second line 12; the electromagnetic relay high-load first terminal 13; the electromagnetic relay high-load second terminal 14; a solid-state relay high-load first terminal 15; a solid state relay high load second terminal 16; a low-load first terminal 17; a low-load first line 18; a low-load second post 19; a second resistor 20; a low-load second line 21; a capacitor 22; and a third resistor 23.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a solid-state relay low-load first binding post 3 and a solid-state relay low-load second binding post 4 on a solid-state relay 2 are respectively connected with an electromagnetic relay low-load second binding post 7 and an electromagnetic relay low-load first binding post 6 on an electromagnetic relay 8 through conductors, a first resistor 5 is arranged on a connection line between the solid-state relay low-load first binding post 3 and the electromagnetic relay low-load second binding post 7, a solid-state relay high-load first binding post 15 and a solid-state relay high-load second binding post 16 on the solid-state relay 2 are respectively connected with an electromagnetic relay high-load second binding post 14 and an electromagnetic relay high-load first binding post 13 through conductors, one end of a low-load second line 21 is connected with the solid-state relay low-load first binding post 3, one end of the low-load second binding post is connected with a second resistor 20, and the other end of the second, the low-load first circuit 18 is connected with the solid-state relay low-load second binding post 4 at one end and the low-load first binding post 17 at one end, a capacitor 22 is connected between the low-load first binding post 17 and the low-load second circuit 21, one end of an externally controlled high-load circuit is connected with the high-load first binding post 10, and the other end of the externally controlled high-load circuit is connected with the high-load second binding post 11, and the action power of the adopted solid-state relay 2 is smaller than that of the electromagnetic relay 8.
One end of a high-load first circuit 9 is connected with a high-load second binding post 14 of the electromagnetic relay, one end is connected with a high-load first binding post 10, one end of a high-load second circuit 12 is connected with a high-load first binding post 13 of the electromagnetic relay, and one end is connected with a high-load second binding post 11, direct current is conducted between a low-load second binding post 19 and a low-load first binding post 17, a capacitor 22 is charged, the current reaching the low-load first binding post 3 of the solid-state relay and the low-load second binding post 4 of the solid-state relay has a slowly rising process, the power of the action of the solid-state relay 2 is smaller than the power of the action of the electromagnetic relay 8, a first resistor 5 has a blocking effect on the current passing through the electromagnetic relay 8, in the rising process of the current, the solid-state relay 2 acts firstly, then the electromagnetic relay 8 acts to, the high load circuit controlled by the combined relay is already closed, so the arcing and striking phenomenon probability is very small when the contact on the electromagnetic relay 8 is closed, after the contact on the electromagnetic relay 8 is closed, the first high-load binding post 15 of the solid-state relay on the solid-state relay 2 is conducted with the second high-load binding post 16 of the solid-state relay, the solid-state relay 2 does not bear the load, the heat productivity of the solid-state relay 2 can be greatly reduced, the solid-state relay 2 does not need to be provided with a radiator, and the size is reduced.
When the low-load second binding post 19 and the low-load first binding post 17 are connected with direct current for disconnection, the capacitor 22 discharges, the released current has a process from large to small, the power of the action of the solid-state relay 2 is smaller than the power of the action of the electromagnetic relay 8, the first resistor 5 has a blocking effect on the current passing through the electromagnetic relay 8, the electromagnetic relay 8 can act first to disconnect the closed contact, at the moment, the solid-state relay 2 bears high load in the disconnection circuit, the arcing and sparking phenomenon probability is very small when the contact on the electromagnetic relay 8 is disconnected, after the electromagnetic relay 8 is disconnected, the released current of the capacitor 22 continues to be reduced, and the solid-state relay 2 acts immediately, so that the high-load circuit controlled by the combined relay is disconnected.
The second resistor 20 is replaced by a diode or a diode connected in series at one end, and the current when the capacitor 22 discharges can be prevented from flowing to the low-load first terminal 17 or the low-load second terminal 19.
And a third resistor 23 is connected in series on a line between the capacitor 22 and the solid-state relay low-load first binding post 3 or the solid-state relay low-load second binding post 4, so that the discharging time of the capacitor 22 is prolonged.
The resistance values of the third resistor 23, the first resistor 5 and the second resistor 20 are between zero ohm and eight kilo ohms, when the resistance value of the second resistor 20 is zero ohm, namely when the second resistor 20 does not exist, the power source originally connected to the low-load first binding post 17 and the low-load second binding post 19 is directly connected to the solid-state relay low-load first binding post 3 and the solid-state relay low-load second binding post 4.
When the low-load first terminal 17 and the low-load second terminal 19 are connected with an alternating current low voltage, the capacitor 22 is not installed in the circuit, and an inductor is installed between the low-load first line 18 and the low-load second line 21.
The high-load first line 9 or the high-load second line 12 is provided with a disconnection delay relay, the high-load first line 9 or the high-load second line 12 is connected to two ends of a high load of the disconnection delay relay in a cutting mode, a low-voltage control end of the disconnection delay relay is connected to a low-load first wiring terminal 17 and a low-load second wiring terminal 19, when the low-load first wiring terminal 17 and the low-load second wiring terminal 19 are connected to be powered on, the disconnection delay relay acts to enable a contact to be immediately closed, when the low-load first wiring terminal 17 and the low-load second wiring terminal 19 are not powered on, the disconnection delay relay passes through a delay element, and is disconnected after time delay, so that the current passing through the high-load circuit controlled by the combined relay reaches zero ampere.
The electromagnetic relay 8 is replaced by a holding relay, and the closing and opening of the contact of the electromagnetic relay are controlled by changing the current directions on the low-load first terminal 17 and the low-load second terminal 19.
The electromagnetic relay 8 and the solid-state relay 2 are provided with one or more groups of controlled high-load binding posts.
The invention can effectively reduce the arcing and ignition phenomena of the common electromagnetic relay, but still has a mechanical contact switch, and is not suitable for high-dust scenes, mine field operation or other scenes sensitive to electric sparks.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A combined relay mainly comprises a housing (1); a solid-state relay (2); a solid-state relay low-load first terminal (3); a solid-state relay low-load second terminal (4); a first resistor (5); a low-load first binding post (6) of the electromagnetic relay; a low-load second binding post (7) of the electromagnetic relay; an electromagnetic relay (8); a high-load first line (9); a high-load first terminal (10); a high-load second terminal (11); a high-load second line (12); a high-load first terminal (13) of the electromagnetic relay; a second terminal (14) of the electromagnetic relay with high load; a solid state relay high load first terminal (15); a solid state relay high load second terminal (16); a low-load first terminal (17); a low-load first line (18); a low-load second terminal (19); a second resistor (20); a low-load second line (21); a capacitor (22); a third resistor (23), characterized in that: a solid-state relay low-load first wiring terminal (3) and a solid-state relay low-load second wiring terminal (4) on the solid-state relay (2) are respectively connected with an electromagnetic relay low-load second wiring terminal (7) and an electromagnetic relay low-load first wiring terminal (6) on the electromagnetic relay (8) through conductors, a first resistor (5) is arranged on the connection line of the solid-state relay low-load first wiring terminal (3) and the electromagnetic relay low-load second wiring terminal (7), a solid-state relay high-load first wiring terminal (15) and a solid-state relay high-load second wiring terminal (16) on the solid-state relay (2) are respectively and directly connected with an electromagnetic relay high-load second wiring terminal (14) and an electromagnetic relay high-load first wiring terminal (13) through conductors, one end of a low-load second line (21) is connected with the solid-state relay low-load first wiring terminal (3), one end of the second resistor (20) is connected with the second resistor (20), the other end of the second resistor (20) is connected with the second low-load wiring terminal (19), one end of the first low-load line (18) is connected with the second low-load wiring terminal (4) of the solid-state relay, one end of the first low-load line is connected with the first low-load wiring terminal (17), a capacitor (22) is connected between the first low-load wiring terminal (17) and the second low-load line (21), one end of an externally controlled high-load circuit is connected with the first high-load wiring terminal (10), and the other end of the externally controlled high-load circuit is connected with the second high-load wiring terminal (11), and the action power of the adopted solid-state relay (2) is smaller than the.
2. The combination relay according to claim 1, wherein: one end of a high-load first circuit (9) is connected to a high-load second binding post (14) of the electromagnetic relay, the other end of the high-load first circuit is connected to a high-load first binding post (10), one end of a high-load second circuit (12) is connected to a high-load first binding post (13) of the electromagnetic relay, the other end of the high-load second circuit is connected to a high-load second binding post (11), direct current is conducted between a low-load second binding post (19) and a low-load first binding post (17), a capacitor (22) is charged, the currents reaching the low-load first binding post (3) of the solid-state relay and the low-load second binding post (4) of the solid-state relay slowly rise, the power of the action of the solid-state relay (2) is smaller than the power of the action of the electromagnetic relay (8), a first resistor (5) has a blocking effect on the currents passing through the electromagnetic relay (8), and the, then electromagnetic relay (8) just act and close normally open contact, when electromagnetic relay (8) are closed, the high load circuit controlled by this combination relay has already been passed through, the phenomenon probability of arcing striking sparks when the contact on electromagnetic relay (8) is closed at this moment is very little, contact on electromagnetic relay (8) is closed the back, solid state relay high load first terminal (15) on solid state relay (2) switch on with solid state relay high load second terminal (16), solid state relay (2) do not undertake the load, the calorific capacity of solid state relay (2) that can significantly reduce, solid state relay (2) need not install the radiator, the volume has been reduced.
3. The combination relay according to claim 1, wherein: when the low-load second wiring terminal (19) and the low-load first wiring terminal (17) are connected with direct current for disconnection, the capacitor (22) discharges, the released current has a process from large to small, the power of the action of the solid-state relay (2) is smaller than the power of the action of the electromagnetic relay (8), the first resistor (5) has a blocking effect on the current passing through the electromagnetic relay (8), the electromagnetic relay (8) can act first to disconnect the closed contact, at the moment, the solid-state relay (2) bears high load in the disconnection circuit, therefore, the probability of arcing and sparking is very small when the contact on the electromagnetic relay (8) is disconnected, after the electromagnetic relay (8) is disconnected, the current released by the capacitor (22) continues to be reduced, and immediately the solid-state relay (2) acts, so that the high-load circuit controlled by the combined relay is disconnected.
4. The combination relay according to claim 1, wherein: the second resistor (20) is replaced by a diode or a diode connected in series at one end, so that the current when the capacitor (22) discharges can be prevented from flowing to the low-load first terminal (17) or the low-load second terminal (19).
5. The combination relay according to claim 1, wherein: and a third resistor (23) is connected in series on a line between the capacitor (22) and the first binding post (3) of the low load of the solid-state relay or the second binding post (4) of the low load of the solid-state relay, so that the discharging time of the capacitor (22) is prolonged.
6. The combination relay according to claim 1, wherein: the resistance values of the third resistor (23), the first resistor (5) and the second resistor (20) are between zero ohm and eight kilo ohms, when the resistance value of the second resistor (20) is zero ohm, namely when the second resistor (20) does not exist, a power supply originally connected to the first low-load wiring terminal (17) and the second low-load wiring terminal (19) of the solid-state relay is directly connected to the first low-load wiring terminal (3) of the solid-state relay and the second low-load wiring terminal (4) of the solid-state relay.
7. The combination relay according to claim 1, wherein: when the low-load first terminal (17) and the low-load second terminal (19) are connected with alternating current low voltage, the capacitor (22) is not arranged in a circuit, and an inductor is arranged between the low-load first line (18) or the low-load second line (21).
8. The combination relay according to claim 1, wherein: the high-load first circuit (9) or the high-load second circuit (12) is provided with a disconnection delay relay, the high-load first circuit (9) or the high-load second circuit (12) is connected to two ends of a high load of the disconnection delay relay in a cutting mode, a low-voltage control end of the disconnection delay relay is connected to a low-load first wiring terminal (17) and a low-load second wiring terminal (19), when the low-load first wiring terminal (17) and the low-load second wiring terminal (19) are connected to power, the disconnection delay relay acts to close a contact, when the low-load first wiring terminal (17) and the low-load second wiring terminal (19) are not powered, the disconnection delay relay passes through a delay element and is disconnected after delay, and therefore the current passing through the circuit for controlling the high load by the combined relay reaches zero ampere.
9. The combination relay according to claim 1, wherein: the electromagnetic relay (8) is replaced by a holding relay, and the closing and the opening of the contact of the electromagnetic relay are controlled by changing the current directions on the low-load first terminal (17) and the low-load second terminal (19).
10. The combination relay according to claim 1, wherein: one or more groups of controlled high-load binding posts are arranged on the electromagnetic relay (8) and the solid-state relay (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569384.0A CN112635247A (en) | 2020-12-26 | 2020-12-26 | Combined relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569384.0A CN112635247A (en) | 2020-12-26 | 2020-12-26 | Combined relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112635247A true CN112635247A (en) | 2021-04-09 |
Family
ID=75325291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569384.0A Pending CN112635247A (en) | 2020-12-26 | 2020-12-26 | Combined relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112635247A (en) |
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2020
- 2020-12-26 CN CN202011569384.0A patent/CN112635247A/en active Pending
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