CN112420452B - Switching type electromagnetic relay and control circuit thereof - Google Patents
Switching type electromagnetic relay and control circuit thereof Download PDFInfo
- Publication number
- CN112420452B CN112420452B CN202011277143.9A CN202011277143A CN112420452B CN 112420452 B CN112420452 B CN 112420452B CN 202011277143 A CN202011277143 A CN 202011277143A CN 112420452 B CN112420452 B CN 112420452B
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- control circuit
- device control
- armature
- contacts
- electromagnetic relay
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/647—Driving arrangements between movable part of magnetic circuit and contact intermediate part comprising interlocking means for different contact pairs
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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
- H01H50/041—Details concerning assembly of relays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
Abstract
The application discloses a switching electromagnetic relay and a control circuit thereof, wherein the switching electromagnetic relay comprises a base, an electromagnet, an armature, a spring, a switching member and two pairs of stationary contacts, wherein the armature is in linkage with the electromagnet, two movable contacts are respectively arranged at two ends of the switching member, the electromagnet is fixed on the base, a first end of the spring is arranged on the base, a second end of the spring is connected with the first end of the armature, the armature is connected with a bracket on the base, a second end of the armature is connected with the switching member, and the movable contacts at two ends of the switching member are correspondingly arranged with the positions of the two pairs of stationary contacts. The embodiment of the application is provided with two pairs of stationary contacts, the conversion member is provided with two movable contacts, the positions of the movable contacts and the stationary contacts are correspondingly arranged, and the movable contacts of the conversion member are connected with one pair of stationary contacts by controlling the movement of the armature and the conversion member through the on-off of the current of the electromagnet coil, so that the simultaneous control of two circuits is realized. The embodiment of the application can be widely applied to the field of automatic control.
Description
Technical Field
The application relates to the field of automatic control, in particular to a switching electromagnetic relay and a control circuit thereof.
Background
The relay is an electric control device, and when a change in an input amount (excitation amount) reaches a prescribed requirement, a predetermined step change in output amount occurs. Current electronic relays include 3 basic forms: (1) The two contacts are opened when the coil is not electrified, and the two contacts are closed after the coil is electrified; (2) The coil is of a dynamic breaking type (normally closed type and D type), when the coil is not electrified, the two contacts are closed, and after the coil is electrified, the two contacts are disconnected; (3) The switching type relay has 3 contacts, namely a movable contact in the middle, and one upper and one lower fixed contacts respectively, wherein when the coil is not electrified, the movable contact is disconnected with the first fixed contact and is closed with the second fixed contact, and when the coil is electrified, the movable contact is closed with the first fixed contact and is disconnected with the second fixed contact.
Disclosure of Invention
In view of the above, an object of the embodiments of the present application is to provide a switching electromagnetic relay and a control circuit thereof. The switching electromagnetic relay realizes the simultaneous control of two circuits.
In a first aspect, an embodiment of the present application provides a switching electromagnetic relay, including a base, an electromagnet, an armature, a spring, a switching member and two pairs of stationary contacts, where two ends of the switching member are respectively provided with a movable contact, the electromagnet is fixed on the base, a first end of the spring is disposed on the base, a second end of the spring is connected with the first end of the armature, the armature is connected with a bracket on the base, a second end of the armature is connected with the switching member, and the movable contacts at two ends of the switching member are disposed corresponding to the positions of the two pairs of stationary contacts.
Optionally, the movable contacts at two ends of the conversion member are raised square blocks.
Optionally, the two pairs of stationary contacts are concave grooves, and the concave grooves are matched with the convex square blocks in size.
Optionally, the middle position of the conversion member is fixed, and the connection point of the conversion member and the second end of the armature is arranged at the end point of the conversion member.
Optionally, the switching electromagnetic relay further includes a housing and an elastic piece, the elastic piece is partially disposed outside the housing, the elastic piece includes two pairs of stationary contact elastic pieces and an electromagnet coil elastic piece, the two pairs of stationary contact elastic pieces are connected with the two pairs of stationary contacts through a wire, and the electromagnet coil elastic piece is connected with the electromagnet coil through a wire.
In a second aspect, an embodiment of the present application provides a control circuit, including the above-mentioned switching electromagnetic relay, a first device control circuit, and a second device control circuit, where the first device control circuit includes two input terminals, the second device control circuit includes two input terminals, a first pair of fixed contacts of the switching electromagnetic relay are connected to the two input terminals of the first device control circuit, and a second pair of fixed contacts of the switching electromagnetic relay are connected to the two input terminals of the second device control circuit.
Optionally, the first device control circuitry is functionally opposite to the first device control circuitry.
Optionally, the first device control circuit is a heating circuit, and the second device control circuit is a cooling circuit.
The embodiment of the application has the following beneficial effects: the embodiment of the application is provided with two pairs of stationary contacts, the conversion member is provided with two movable contacts, the positions of the movable contacts and the stationary contacts are correspondingly arranged, the movement of the armature is controlled by the on-off of the current of the electromagnet coil, and the movement of the conversion member connected with the armature is further controlled, so that the movable contacts of the conversion member are connected with one pair of stationary contacts, and the simultaneous control of the relay on two paths of circuits is realized.
Drawings
Fig. 1 is a schematic structural view of a switching electromagnetic relay according to an embodiment of the present application;
fig. 2 is a schematic cross-sectional structure of a movable contact and a stationary contact according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control circuit according to an embodiment of the present application.
Detailed Description
The application will now be described in further detail with reference to the drawings and to specific examples. The step numbers in the following embodiments are set for convenience of illustration only, and the order between the steps is not limited in any way, and the execution order of the steps in the embodiments may be adaptively adjusted according to the understanding of those skilled in the art.
As shown in fig. 1, an embodiment of the present application provides a switching electromagnetic relay 100, which includes a base 101, an electromagnet 102, an armature 103, a spring 104, a switching member 105, a first pair of stationary contacts 106 and a second pair of stationary contacts 107, wherein two ends of the switching member 105 are respectively provided with a movable contact 108, the electromagnet 102 is fixed on the base 101, a first end of the spring 104 is disposed on the base 101, a second end of the spring 104 is connected with a first end of the armature 103, the armature 103 is connected with a bracket on the base 101, a second end of the armature 103 is connected with the switching member 105, and the movable contacts 108 at two ends of the switching member 105 are disposed corresponding to positions of the first pair of stationary contacts 106 and the second pair of stationary contacts 107.
The switching electromagnetic relay 100 operates according to the following principle: after the coil of the electromagnet 102 is electrified, magnetic force is generated, the armature 103 moves downwards under the action of the magnetic force, so that the movable contacts 108 at the two ends of the conversion member 105 are in contact connection with the first pair of fixed contacts 106; after the coil of the electromagnet 102 is powered off, the magnetic force disappears, and the armature 103 moves upwards under the action of the spring 104, so that the movable contacts 108 at the two ends of the switching member 105 are in contact connection with the second pair of stationary contacts 106.
It should be noted that the movable contact may be at an end position of the switching member, or may be at another position, and the present application is not particularly limited.
The movable contact may be square or circular, and the present application is not limited in particular. The two pairs of stationary contacts can be provided with protrusions on the surface, concave grooves on the surface, or flat surfaces, and the application is not particularly limited.
The position of the connection point of the switching member to the second end of the armature is not limited, and may be at the intermediate position, off-center position, or at the end point of the switching member.
Optionally, the movable contacts at two ends of the conversion member are raised square blocks. When the movable contact is square, the contact area is larger and the stability is better.
Alternatively, as shown in fig. 2, the first pair of stationary contacts 106 and the second pair of stationary contacts 107 are concave grooves, and the movable contacts 108 are convex square blocks, and the concave grooves are matched with the square blocks in size. The stationary contact of this embodiment adopts concave groove, and the movable contact adopts protruding square block to the size pairs, and after stationary contact contacted with the movable contact, the snap-in force was better, is difficult for taking place the displacement, and stability is better.
Optionally, the middle position of the conversion member is fixed, and the connection point of the conversion member and the second end of the armature is arranged at the end point of the conversion member.
In the embodiment, the connecting point of the conversion member is arranged at the end point position, and the conversion member is driven to move by the connecting point to save more effort, so that the conversion member is less in abrasion and longer in service time.
Optionally, the switching electromagnetic relay further includes a housing and an elastic piece, the elastic piece is partially disposed outside the housing, the elastic piece includes two pairs of stationary contact elastic pieces and an electromagnet coil elastic piece, the two pairs of stationary contact elastic pieces are connected with the two pairs of stationary contacts through a wire, and the electromagnet coil elastic piece is connected with the electromagnet coil through a wire.
In the embodiment, the relay is packaged in the shell, the static contact and the electromagnet coil terminal are led out of the shell through the elastic sheet, and in this case, the relay is not easy to damage and is convenient to wire.
The embodiment of the application has the following beneficial effects: the embodiment of the application is provided with two pairs of stationary contacts, the conversion member is provided with two movable contacts, the positions of the movable contacts and the stationary contacts are correspondingly arranged, the movement of the armature is controlled by the on-off of the current of the electromagnet coil, and the movement of the conversion member connected with the armature is further controlled, so that the movable contacts of the conversion member are connected with one pair of stationary contacts, and the simultaneous control of the relay on two paths of circuits is realized.
As shown in fig. 3, an embodiment of the present application provides a control circuit, including the above-mentioned switching electromagnetic relay, a first device control circuit and a second device control circuit, where the first device control circuit includes two input terminals, the second device control circuit includes two input terminals, a first pair of fixed contacts of the switching electromagnetic relay are connected to the two input terminals of the first device control circuit, and a second pair of fixed contacts of the switching electromagnetic relay are connected to the two input terminals of the second device control circuit.
The working principle of the control circuit is as follows: after a control switch of an electromagnet coil is closed, the coil of the electromagnet generates magnetic force after being electrified, and an armature moves downwards under the action of the magnetic force, so that a movable contact at two ends of a conversion component is in contact connection with a first pair of stationary contacts, and a first device control circuit is connected and starts to work; after the control switch of the electromagnet coil is disconnected, the magnetic force disappears after the coil of the electromagnet is disconnected, the armature moves upwards under the action of the magnetic force, so that the movable contacts at the two ends of the conversion component are in contact connection with the second pair of stationary contacts, and the control circuit of the second device is connected and starts to work. The control circuit can control two circuits simultaneously, one circuit is switched on at any time, and the other circuit is switched off.
The embodiment of the application has the following beneficial effects: the embodiment of the application is provided with two pairs of stationary contacts, the conversion member is provided with two movable contacts, the positions of the movable contacts and the stationary contacts are correspondingly arranged, the movement of the armature is controlled by the on-off of the current of the electromagnet coil, and the movement of the conversion member connected with the armature is further controlled, so that the movable contacts of the conversion member are connected with one pair of stationary contacts, and the simultaneous control of the relay on two paths of circuits is realized.
Optionally, the first device control circuitry is functionally opposite to the first device control circuitry. In this embodiment, the first device control circuit and the first device control circuit having the opposite functions do not operate simultaneously, and the operation is simple and the practicability is good by using the control circuit.
Optionally, the first device control circuit is a heating circuit, and the second device control circuit is a cooling circuit. The application scene of this embodiment is more, if a certain workshop of mill needs to realize constant temperature, and the fan loop can cool down but only need low-power supply can drive, and heating system loop then need high-power supply to drive, and both can not move simultaneously, adopts switching type electromagnetic relay to switch the work of two way systems this moment, and the power of two sets of systems and control circuit's power is kept apart completely.
While the preferred embodiment of the present application has been described in detail, the application is not limited to the embodiment, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (5)
1. The switching electromagnetic relay is characterized by comprising a base, an electromagnet, an armature, a spring, a switching member and two pairs of stationary contacts, wherein the armature is in linkage with the electromagnet; the middle position of the conversion member is fixed, and the connection point of the conversion member and the second end of the armature is arranged at the end point position of the conversion member; the movable contacts at two ends of the conversion component are raised square blocks; the two pairs of stationary contacts are concave grooves, and the concave grooves are matched with the protruding square blocks in size.
2. The switched electromagnetic relay of claim 1, further comprising a housing and a spring, wherein the spring is partially disposed outside the housing, wherein the spring comprises two pairs of stationary contact springs and an electromagnet coil spring, wherein the two pairs of stationary contact springs are connected to the two pairs of stationary contacts by wires, and wherein the electromagnet coil spring is connected to the coil of the electromagnet by wires.
3. A control circuit, comprising the switched electromagnetic relay according to any one of claims 1-2, a first device control circuit and a second device control circuit, wherein the first device control circuit comprises two input terminals, the second device control circuit comprises two input terminals, a first pair of stationary contacts of the switched electromagnetic relay are connected to the two input terminals of the first device control circuit, and a second pair of stationary contacts of the switched electromagnetic relay are connected to the two input terminals of the second device control circuit.
4. A control circuit according to claim 3, wherein the first device control circuit functions inversely to the second device control circuit.
5. The control circuit of claim 4, wherein the first device control circuit is a heating circuit and the second device control circuit is a cooling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277143.9A CN112420452B (en) | 2020-11-16 | 2020-11-16 | Switching type electromagnetic relay and control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277143.9A CN112420452B (en) | 2020-11-16 | 2020-11-16 | Switching type electromagnetic relay and control circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112420452A CN112420452A (en) | 2021-02-26 |
| CN112420452B true CN112420452B (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011277143.9A Active CN112420452B (en) | 2020-11-16 | 2020-11-16 | Switching type electromagnetic relay and control circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112420452B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502922B (en) * | 2022-10-27 | 2024-05-10 | 中车大连机车车辆有限公司 | Relay assembly debugging fixture and positioning and debugging method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1758400A (en) * | 2004-10-04 | 2006-04-12 | 钟纯真 | Two-way stable relay |
| WO2012116824A1 (en) * | 2011-03-02 | 2012-09-07 | Phoenix Contact Gmbh & Co. Kg | Electromagnetic relay having a monitored switching position |
| CN204632670U (en) * | 2015-04-02 | 2015-09-09 | 项泽玉 | A kind of relay contact switch circuit of unilateal conduction |
| CN206727023U (en) * | 2017-05-10 | 2017-12-08 | 深圳瑞能电气设备有限公司 | One kind pressure moving seesaw-type relay |
| CN109243922A (en) * | 2018-10-26 | 2019-01-18 | 浙江达峰科技有限公司 | A kind of electromagnetic relay avoiding one direction vibration failur |
| CN111613487A (en) * | 2020-05-22 | 2020-09-01 | 任东园 | Magnetic latching relay and working method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0118327D0 (en) * | 2001-07-27 | 2001-09-19 | Tyco Electronics Amp Gmbh | Relay |
-
2020
- 2020-11-16 CN CN202011277143.9A patent/CN112420452B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1758400A (en) * | 2004-10-04 | 2006-04-12 | 钟纯真 | Two-way stable relay |
| WO2012116824A1 (en) * | 2011-03-02 | 2012-09-07 | Phoenix Contact Gmbh & Co. Kg | Electromagnetic relay having a monitored switching position |
| CN204632670U (en) * | 2015-04-02 | 2015-09-09 | 项泽玉 | A kind of relay contact switch circuit of unilateal conduction |
| CN206727023U (en) * | 2017-05-10 | 2017-12-08 | 深圳瑞能电气设备有限公司 | One kind pressure moving seesaw-type relay |
| CN109243922A (en) * | 2018-10-26 | 2019-01-18 | 浙江达峰科技有限公司 | A kind of electromagnetic relay avoiding one direction vibration failur |
| CN111613487A (en) * | 2020-05-22 | 2020-09-01 | 任东园 | Magnetic latching relay and working method thereof |
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| Publication number | Publication date |
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| CN112420452A (en) | 2021-02-26 |
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